Can I find cheaper flights to South Korea if I am willing to have stopovers?

Yes, flights with stopovers are often cheaper than direct flights. Keep an eye out for flight deals to South Korea on Cheapflights that require 1 or 2 stops for potential cost savings.

What is the best airline to fly to South Korea?

Based on reviews from Cheapflights users, Asiana Airlines is rated the highest out of the airlines that fly to South Korea.

What is the cheapest airport to fly to in South Korea?

Seoul Gimpo Intl is currently the cheapest airport to fly to in South Korea. One-way flights to Seoul Gimpo Intl typically cost HK$138, while return flights cost around HK$130.

How much is a return flight to South Korea?

A return flight to South Korea will typically cost around HK$1,685, however they can be found for as little as HK$958.

Where does the fastest flight to South Korea depart from?

For those looking to save time traveling to South Korea, Hong Kong Intl offers the quickest one-way flight (2 hours 45 minutes).

Does Incheon Intl have rental cars?

Yes. Those touching down at Incheon Intl can take advantage of the car hire services offered upon their arrival.

Are there hotels close to Incheon Intl?

Yes. Incheon Intl has hotels nearby for those requiring accommodations. Darakhyu Incheon Airport Terminal 2 Capsule Hotel by Walkerhill is the closest property to Incheon Intl (0.0 km away from Incheon Intl).

HK$784+ Cheap Flights to South Korea

Flights to South Korea in 2026

Enter your travel dates to find the best prices.

Cheapest

Best

Direct

Last-minute

One-way

Cheapest flights to South Korea
Explore the most affordable flight options available to South Korea. Find the lowest fares based on data from user searches, with prices last updated on 6 November 2026.

Sun 15-1102:55 -

Nonstop2h 45m

Wed 18-1107:45 -

Nonstop3h 30m

Deal found 5-11HK$1,482

Sat 7-1115:25 -

Nonstop2h 45m

Sat 14-1107:45 -

Nonstop3h 30m

Deal found 5-11HK$1,498

Sat 14-1102:55 -

Nonstop2h 45m

Thu 19-1122:10 -

Nonstop3h 10m

Deal found 4-11HK$1,514

Fri 13-1102:55 -

Nonstop2h 45m

Tue 17-1107:45 -

Nonstop3h 30m

Deal found 2-11HK$1,522

Fri 6-1102:55 -

Nonstop2h 45m

Fri 13-1107:45 -

Nonstop3h 30m

Deal found 2-11HK$1,529

Thu 26-1115:25 -

Nonstop2h 45m

Sun 29-1107:45 -

Nonstop3h 30m

Deal found 3-11HK$1,561

Best flights to South Korea
Discover carefully curated flight deals to South Korea that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 6 November 2026.

Sun 22-1102:55 -

Nonstop2h 45m

Sun 29-1107:45 -

Nonstop3h 30m

Deal found 4-11HK$1,482

Fri 11-1202:10 -

Nonstop3h 00m

Sun 13-1222:10 -

Nonstop3h 10m

Deal found 1-11HK$1,686

Wed 25-1102:00 -

Nonstop3h 20m

Sat 28-1121:50 -

Nonstop3h 50m

Deal found 5-11HK$1,710

Sun 15-1102:55 -

Nonstop2h 45m

Wed 18-1110:10 -

1 stop6h 50m

Deal found 5-11HK$1,812

Sat 21-1117:40 -

1 stop20h 10m

Wed 25-1113:50 -

1 stop8h 15m

Deal found 5-11HK$2,000

Fri 22-117:25 -

1 stop16h 55m

Tue 26-106:55 -

1 stop10h 30m

Deal found 3-11HK$2,353

Tue 17-1113:40 -

Nonstop3h 40m

Sun 22-1109:15 -

Nonstop3h 50m

Deal found 2-11HK$2,784

Tue 29-1211:20 -

1 stop5h 25m

Sat 2-111:15 -

1 stop8h 15m

Deal found 3-11HK$2,886

Fri 11-1210:20 -

1 stop7h 30m

Tue 15-1211:50 -

1 stop5h 45m

Deal found 5-11HK$3,106

Wed 18-1102:55 -

Nonstop2h 45m

Mon 23-1107:45 -

Nonstop3h 30m

Deal found 3-11HK$1,584

Sun 22-1111:55 -

1 stop5h 00m

Wed 2-1212:30 -

1 stop7h 00m

Deal found 2-11HK$3,467

Tue 24-1100:15 -

1 stop9h 35m

Thu 3-1207:55 -

1 stop15h 45m

Deal found 2-11HK$3,553

Sun 6-1202:55 -

1 stop5h 25m

Wed 9-1218:15 -

1 stop7h 05m

Deal found 5-11HK$1,898

Sun 6-1202:25 -

Nonstop3h 10m

Wed 9-1207:30 -

Nonstop4h 00m

Deal found 5-11HK$1,757

Mon 7-1219:10 -

1 stop16h 40m

Tue 8-1218:55 -

1 stop17h 35m

Deal found 1-11HK$2,031

Sun 15-1102:10 -

Nonstop3h 00m

Sat 21-1122:10 -

Nonstop3h 10m

Deal found 3-11HK$2,086

Wed 2-1202:55 -

1 stop7h 10m

Thu 10-1215:50 -

1 stop9h 30m

Deal found 5-11HK$1,945

Wed 9-1219:50 -

1 stop10h 05m

Sun 13-1207:35 -

2 stops36h 15m

Deal found 4-11HK$4,330

Sun 17-117:25 -

1 stop24h 55m

Mon 25-120:20 -

1 stop21h 05m

Deal found 1-11HK$2,361

Mon 16-1107:15 -

1 stop9h 35m

Thu 19-1122:10 -

Nonstop3h 10m

Deal found 4-11HK$1,992

Sat 19-1215:25 -

Nonstop2h 45m

Sat 26-1207:45 -

Nonstop3h 30m

Deal found 5-11HK$2,102

Sun 29-1102:55 -

1 stop7h 45m

Tue 1-1215:45 -

1 stop7h 45m

Deal found 3-11HK$2,000

Tue 22-1202:25 -

Nonstop3h 10m

Mon 28-1207:30 -

Nonstop4h 00m

Deal found 3-11HK$2,126

Sun 3-110:10 -

1 stop7h 05m

Wed 6-112:00 -

1 stop9h 05m

Deal found 1-11HK$2,902

Wed 2-1202:55 -

1 stop6h 25m

Sat 5-1218:40 -

1 stop6h 40m

Deal found 1-11HK$2,047

Sat 20-202:25 -

Nonstop3h 10m

Wed 24-207:30 -

Nonstop4h 00m

Deal found 1-11HK$2,165

Thu 17-1221:05 -

1 stop22h 00m

Thu 24-1207:45 -

Nonstop3h 30m

Deal found 2-11HK$2,055

Thu 19-1112:15 -

1 stop6h 25m

Fri 20-1111:40 -

1 stop7h 50m

Deal found 2-11HK$3,137

Thu 18-202:25 -

Nonstop3h 10m

Wed 24-207:30 -

Nonstop4h 00m

Deal found 1-11HK$2,251

Sat 12-1208:55 -

1 stop7h 55m

Wed 16-1222:10 -

Nonstop3h 10m

Deal found 1-11HK$2,055

Find flights to South Korea

One-wayReturn

Explore South Korea

Flights to Seoul

Flights to Busan

Find flight deals to South Korea

Return from	HK$1,631
One-way from	HK$706
Popular in	February
Cheapest in	March
Average price	HK$1,867
Good round-trip deal	HK$1,406 or less
Good one-way deal	HK$933 or less

Eastar Jet
4-1-19-1
Nonstop
8h 10m total
Hong Kong to Seoul

Search Deals

HK Express
15-11-31-12
Nonstop
2h 45m total
Hong Kong to South Korea

Search Deals

Highest demand for flights based on searches. 1% potential increase in price (HK$37 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease (HK$57 potential savings vs. average return price).

Search Deals

Average for return flights in November 2026

Search Deals

Price to beat on a round-trip flight from Hong Kong Intl to South Korea.

Search Deals

Price to beat on a one-way flight from Hong Kong Intl to South Korea.

Search Deals

Fly from

Route

Departure

Return

Price

Cheapest return flight

Hong KongSeoul

HKG Hong Kong Intl - GMP Seoul Gimpo Intl

HKGGMP

Hong Kong Intl

Tue 15-12

02:55-10:25

1 stop6h 30m

Seoul Gimpo Intl

Wed 31-12

00:00-23:00

Nonstop0h 00m

HK$973

Hong KongSeoul

HKG Hong Kong Intl - GMP Seoul Gimpo Intl

HKGGMP

Hong Kong Intl

Tue 15-12

02:55-10:25

1 stop6h 30m

Seoul Gimpo Intl

Wed 31-12

00:00-23:00

Nonstop0h 00m

HK$973

Hong KongBusan

HKG Hong Kong Intl - PUS Busan Gimhae

HKGPUS

Hong Kong Intl

Sun 13-12

02:55-11:55

1 stop8h 00m

Busan Gimhae

Wed 31-12

00:00-23:00

Nonstop0h 00m

HK$1,192

Hong KongJeju City

HKG Hong Kong Intl - CJU Jeju City

HKGCJU

Hong Kong Intl

Sun 22-11

02:55-06:40

Nonstop2h 45m

Jeju City

Sun 29-11

07:45-10:15

Nonstop3h 30m

HK$1,482

Hong KongJeju City

HKG Hong Kong Intl - CJU Jeju City

HKGCJU

Hong Kong Intl

Wed 18-11

02:55-06:40

Nonstop2h 45m

Jeju City

Mon 23-11

07:45-10:15

Nonstop3h 30m

HK$1,584

Fastest return journey

Hong KongJeju City

HKG Hong Kong Intl - CJU Jeju City

HKGCJU

Hong Kong Intl

Fri 11-12

02:10-06:10

Nonstop3h 00m

Jeju City

Sun 13-12

22:10-00:20

Nonstop3h 10m

HK$1,686

Hong KongBusan

HKG Hong Kong Intl - PUS Busan Gimhae

HKGPUS

Hong Kong Intl

Wed 25-11

02:00-06:20

Nonstop3h 20m

Busan Gimhae

Sat 28-11

21:50-00:40

Nonstop3h 50m

HK$1,710

Hong KongDaegu

HKG Hong Kong Intl - TAE Daegu

HKGTAE

Hong Kong Intl

Sun 6-12

02:25-06:35

Nonstop3h 10m

Daegu

Wed 9-12

07:30-10:30

Nonstop4h 00m

HK$1,757

Hong KongJeju City

HKG Hong Kong Intl - CJU Jeju City

HKGCJU

Hong Kong Intl

Sun 15-11

02:55-06:40

Nonstop2h 45m

Jeju City

Wed 18-11

10:10-16:00

1 stop6h 50m

HK$1,812

Hong KongDaegu

HKG Hong Kong Intl - TAE Daegu

HKGTAE

Hong Kong Intl

Sun 6-12

02:55-09:20

1 stop5h 25m

Daegu

Wed 9-12

18:15-00:20

1 stop7h 05m

HK$1,898

Flights are sorted by cheapest return flights first.

Deals found on 4-11

Showing 1-10 of 33 resultsSorted by cheapest first

Best time to book a flight to South Korea

Have a flexible travel schedule? Discover the best time to fly to South Korea with our price prediction graph.

HKG-CJU

HKG-PUS

HKG-ICN

HKG-TAE

HKG-GMP

Estimated return price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight to South Korea

HKG-KR0

HKG-CJU

HKG-PUS

HKG-ICN

HKG-TAE

How long is the flight to South Korea?

On average, a flight from Hong Kong to South Korea takes 4 hours 3 minutes. Flights to South Korea from other popular cities in Hong Kong will vary in length. Below are a few examples of popular routes and their flight times.

Weekly flight availability to South Korea

The most flights from Hong Kong to South Korea are scheduled on a Wednesday (41 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (28 on average).

What are the most popular airlines that fly to South Korea?

The most popular airlines flying from Hong Kong to South Korea are HK Express, Cathay Pacific and 泰瑞航空 (原德威航空).

What are the cheapest airlines that fly to South Korea?

The cheapest airlines flying from Hong Kong to South Korea are 泰瑞航空 (原德威航空), Air Busan and Eastar Jet.

Rainfall in South Korea by month

In terms of precipitation, rainfall in South Korea ranges from 20.0 - 260.0 mm per month. July is typically the wettest month, when rainfall can reach 260.0 mm. January is typically the driest time to visit South Korea when rainfall is around 20.0 mm.

Temperature in South Korea by month

If weather is an important factor for your trip to South Korea, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 25.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around -2.0 C).

When is the best time to book a flight to South Korea?

Booking 13 days in advance of your planned departure date is, on average, the best time to get cheap flights to South Korea. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

When is the cheapest time to fly to South Korea?

Users looking for the lowest fares to South Korea should consider flying on Saturday evenings, when prices are typically cheapest. Budget-minded travellers will want to avoid Saturday at midday, when prices are usually at their highest.

What are the most popular places to fly to in South Korea?

The most popular places in South Korea to fly to are Seoul, Incheon, Busan and Jeju City.

Reviews of airlines servicing South Korea

See what other customers who have flown with Asiana Airlines,Cathay Pacific, andJeju Air to South Korea have to say. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Asiana Airlines

8.1

Very Good

570 reviews

Check prices

Reviews

1 / 20

8.0

Excellent

Anonymous,Jun 2026

SFO - ICN

Crew does their job without pleasantness. Could be cultural. Chinese airlines are the same. Our connecting flight to Bangkok on an Airbus A321 was miserable in economy. No leg room, again awful food.

Asiana Airlines

8.1

Very Good

570 reviews

Asiana Airlines

8.1

Very Good

570 reviews

Check prices

Reviews

1 / 20

8.0

Excellent

Anonymous,Jun 2026

SFO - ICN

Crew does their job without pleasantness. Could be cultural. Chinese airlines are the same. Our connecting flight to Bangkok on an Airbus A321 was miserable in economy. No leg room, again awful food.

Cathay Pacific

7.6

Good

1,538 reviews

Asiana Airlines

8.1

Very Good

570 reviews

Check prices

Reviews

1 / 20

8.0

Excellent

Anonymous,Jun 2026

SFO - ICN

Crew does their job without pleasantness. Could be cultural. Chinese airlines are the same. Our connecting flight to Bangkok on an Airbus A321 was miserable in economy. No leg room, again awful food.

Jeju Air

7.6

Good

38 reviews

Asiana Airlines

8.1

Very Good

570 reviews

Check prices

Reviews

1 / 20

8.0

Excellent

Anonymous,Jun 2026

SFO - ICN

Crew does their job without pleasantness. Could be cultural. Chinese airlines are the same. Our connecting flight to Bangkok on an Airbus A321 was miserable in economy. No leg room, again awful food.

HK Express

7.2

Good

47 reviews

Asiana Airlines

8.1

Very Good

570 reviews

Check prices

Reviews

1 / 20

8.0

Excellent

Anonymous,Jun 2026

SFO - ICN

Crew does their job without pleasantness. Could be cultural. Chinese airlines are the same. Our connecting flight to Bangkok on an Airbus A321 was miserable in economy. No leg room, again awful food.

FAQs about flying to South Korea

Can I find cheaper flights to South Korea if I am willing to have stopovers?
Yes, flights with stopovers are often cheaper than direct flights. Keep an eye out for flight deals to South Korea on Cheapflights that require 1 or 2 stops for potential cost savings.
What is the best airline to fly to South Korea?
Based on reviews from Cheapflights users, Asiana Airlines is rated the highest out of the airlines that fly to South Korea.
What is the cheapest airport to fly to in South Korea?
Seoul Gimpo Intl is currently the cheapest airport to fly to in South Korea. One-way flights to Seoul Gimpo Intl typically cost HK$138, while return flights cost around HK$130.
How much is a return flight to South Korea?
A return flight to South Korea will typically cost around HK$1,685, however they can be found for as little as HK$958.
Where does the fastest flight to South Korea depart from?
For those looking to save time traveling to South Korea, Hong Kong Intl offers the quickest one-way flight (2 hours 45 minutes).
Does Incheon Intl have rental cars?
Yes. Those touching down at Incheon Intl can take advantage of the car hire services offered upon their arrival.
Are there hotels close to Incheon Intl?
Yes. Incheon Intl has hotels nearby for those requiring accommodations. Darakhyu Incheon Airport Terminal 2 Capsule Hotel by Walkerhill is the closest property to Incheon Intl (0.0 km away from Incheon Intl).

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Top South Korea destinations

Popular regions

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Fly from South Korea

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Complete your trip

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How does Cheapflights help users find flights to South Korea?

Deals for South Korea flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose to your preference, such as price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets to South Korea?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights to South Korea.

Can Cheapflights find flights to South Korea with no change fees?

Yes, we can. To see specific flights to South Korea with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights to South Korea become cheaper?

Yes, Cheapflights has a feature called Price Alerts, which notifies users when flight prices change. Track prices for your flight to South Korea today and book when you’re ready!

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Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.

HK$784+ Cheap flights to South Korea

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3-12. Fares are subject to change and may not be available on all flights or dates of travel.

Flights to South Korea in 2026

Cheapest flights to South KoreaExplore the most affordable flight options available to South Korea. Find the lowest fares based on data from user searches, with prices last updated on 6 November 2026.

Explore the most affordable flight options available to South Korea. Find the lowest fares based on data from user searches, with prices last updated on 6 November 2026.

Best flights to South KoreaDiscover carefully curated flight deals to South Korea that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 6 November 2026.

Discover carefully curated flight deals to South Korea that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 6 November 2026.

Direct flights to South KoreaExplore direct flight options to South Korea based on user searches, and compare prices and availability for your desired travel dates. Data last updated 6 November 2026.

Explore direct flight options to South Korea based on user searches, and compare prices and availability for your desired travel dates. Data last updated 6 November 2026.

Last-minute flights to South KoreaDiscover last-minute flight deals to South Korea. Data last updated 6 November 2026 and is based on user searches.

Discover last-minute flight deals to South Korea. Data last updated 6 November 2026 and is based on user searches.

One-way flights to South KoreaSearch for one-way flight options to South Korea. Find affordable one-way fares based on user searches. Data last updated 6 November 2026.

Search for one-way flight options to South Korea. Find affordable one-way fares based on user searches. Data last updated 6 November 2026.

Find flights to South Korea

Browse one-way and return flights deals to South Korea on Cheapflights. Flight deals are based on user searches and were last updated on 6 November 2026

Explore South Korea

Find flight deals to South Korea

Return from

One-way from

Popular in

Cheapest in

Average price

Good round-trip deal

Good one-way deal

Cheapflights Fare Finder

Use the filters below to find and compare flights to South Korea that are best for you.

Best time to book a flight to South Korea

Have a flexible travel schedule? Discover the best time to fly to South Korea with our price prediction graph.

Cheapflights Insights

How long is the flight to South Korea?

On average, a flight from Hong Kong to South Korea takes 4 hours 3 minutes. Flights to South Korea from other popular cities in Hong Kong will vary in length. Below are a few examples of popular routes and their flight times.

Weekly flight availability to South Korea

The most flights from Hong Kong to South Korea are scheduled on a Wednesday (41 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (28 on average).

What are the most popular airlines that fly to South Korea?

The most popular airlines flying from Hong Kong to South Korea are HK Express, Cathay Pacific and 泰瑞航空 (原 德威航空).

What are the cheapest airlines that fly to South Korea?

The cheapest airlines flying from Hong Kong to South Korea are 泰瑞航空 (原 德威航空), Air Busan and Eastar Jet.

Rainfall in South Korea by month

Plan your trip to South Korea by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in South Korea ranges from 20.0 - 260.0 mm per month. July is typically the wettest month, when rainfall can reach 260.0 mm. January is typically the driest time to visit South Korea when rainfall is around 20.0 mm.

Temperature in South Korea by month

Plan your trip to South Korea by taking into account the average temperature totals by month.

When is the best time to book a flight to South Korea?

Booking 13 days in advance of your planned departure date is, on average, the best time to get cheap flights to South Korea. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

When is the cheapest time to fly to South Korea?

Use this chart to determine the cheapest time to fly return from Hong Kong to South Korea. Price data was last updated on 5 September 2026.

Users looking for the lowest fares to South Korea should consider flying on Saturday evenings, when prices are typically cheapest. Budget-minded travellers will want to avoid Saturday at midday, when prices are usually at their highest.

What are the most popular places to fly to in South Korea?

Destination popularity is based on the amount of flight searches to South Korea in the last few years. This data was updated on 6 November 2026.

The most popular places in South Korea to fly to are Seoul, Incheon, Busan and Jeju City.

Reviews of airlines servicing South Korea

See what other customers who have flown with Asiana Airlines,Cathay Pacific, andJeju Air to South Korea have to say. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

FAQs about flying to South Korea

Can I find cheaper flights to South Korea if I am willing to have stopovers?

What is the best airline to fly to South Korea?

What is the cheapest airport to fly to in South Korea?

How much is a return flight to South Korea?

Where does the fastest flight to South Korea depart from?

Does Incheon Intl have rental cars?

Are there hotels close to Incheon Intl?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Find flights to South Korea

Select your preferred flight destination in South Korea from the list below.

Popular places in South Korea

Not sure where to visit in South Korea? Start by selecting one of the most popular places in South Korea below to filter down your possible destination.

Popular flight searches

Check out other popular destinations found by fellow travellers in 2026

Fly from these popular South Korea cities

These are the most popular flight origins in South Korea at this time.

Popular South Korea flight routes

Browse through the most popular flight routes to South Korea at this time.

Complete your trip

Complete your trip to South Korea by reserving a rental car and/or hotel room.

Browse our most popular destinations

Most traveled routes by our users

Search flights to South Korea by cabin class

Find flights to South Korea, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Direct flights to Asia

Book a non-stop flight to one of these other cities located in Asia.

Cheapest flights to South Korea
Explore the most affordable flight options available to South Korea. Find the lowest fares based on data from user searches, with prices last updated on 6 November 2026.

Best flights to South Korea
Discover carefully curated flight deals to South Korea that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 6 November 2026.

Direct flights to South Korea
Explore direct flight options to South Korea based on user searches, and compare prices and availability for your desired travel dates. Data last updated 6 November 2026.

Last-minute flights to South Korea
Discover last-minute flight deals to South Korea. Data last updated 6 November 2026 and is based on user searches.

One-way flights to South Korea
Search for one-way flight options to South Korea. Find affordable one-way fares based on user searches. Data last updated 6 November 2026.

The most popular airlines flying from Hong Kong to South Korea are HK Express, Cathay Pacific and 泰瑞航空 (原德威航空).

The cheapest airlines flying from Hong Kong to South Korea are 泰瑞航空 (原德威航空), Air Busan and Eastar Jet.