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HK$576+ 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 18-10. Fares are subject to change and may not be available on all flights or dates of travel.
— ICN
10 Nov — 17 Nov1
1 adult
1 adult, Economy

Find flight deals to South Korea

Enter your travel dates to find the best prices.

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 11 October 2025.

Sat 18-1013:35HKG - CJU
1 stop16h 55mJeju Air
Wed 22-1021:05CJU - HKG
1 stop16h 30mJeju Air
Deal found 11-10HK$576
Tue 14-1013:35HKG - CJU
1 stop17h 00mJeju Air
Fri 17-1020:00CJU - HKG
1 stop17h 35mJeju Air
Deal found 10-10HK$646
Mon 3-1113:55HKG - CJU
1 stop16h 45mJeju Air
Thu 6-1121:20CJU - HKG
1 stop16h 35mJeju Air
Deal found 10-10HK$654
Thu 23-1013:35HKG - CJU
1 stop17h 00mJeju Air
Tue 28-1020:55CJU - HKG
1 stop17h 00mJeju Air
Deal found 11-10HK$700
Wed 26-1113:55HKG - CJU
1 stop17h 05mJeju Air
Wed 3-1220:35CJU - HKG
1 stop17h 20mJeju Air
Deal found 11-10HK$833
Tue 11-1113:55HKG - CJU
1 stop17h 05mJeju Air
Sun 16-1120:55CJU - HKG
1 stop17h 00mJeju Air
Deal found 10-10HK$872

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 11 October 2025
Explore South Korea
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Flights to Busan

Flights to South Korea in 2025

Find the latest flights to South Korea in 2025, with up-to-date prices and availability. In the last 7 days, Cheapflights users made a total of 70,647 searches and data was last updated on 11 October 2025.

Return from

HK$1,284

One-way from

HK$638

Popular in

December

Cheapest in

September

Average price

HK$1,712

Good round-trip deal

HK$986 or less

Good one-way deal

HK$587 or less
HK Express
  • HK Express
  • 14-3-16-3
  • Nonstop
  • 7h 35m total
  • Hong Kong to Seoul
Search Deals
HK Express
  • HK Express
  • 20-10
  • Nonstop
  • 3h 25m total
  • Hong Kong to South Korea
Search Deals
Highest demand for flights based on searches. 6% potential increase in price (HK$874 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (HK$418 potential savings vs. average return price).
Search Deals
Average for return flights in October 2025
Search Deals
Price to beat on a round-trip flight from Hong Kong Intl to South Korea.
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Price to beat on a one-way flight from Hong Kong Intl to South Korea.
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Cheapflights Fare Finder

 
Locate flights to South Korea that fit your budget, with regularly updated fares and availability. In the last 7 days, Cheapflights users made a total of 70,647 searches and data was last updated on 11 October 2025.
Use the filters below to find and compare flights to South Korea that are best for you.

Fly from

Hong Kong

Route

Departure

Return

Price

Hong KongJeju City

HKG - CJU

HKGCJU

Hong Kong Intl

Tue 11-11

13:55-08:00

1 stop17h 05m

Jeju City

Sun 16-11

20:55-12:55

1 stop17h 00m

HK$872

Hong KongJeju City

HKG - CJU

HKGCJU

Hong Kong Intl

Tue 25-11

02:45-06:40

Nonstop2h 55m

Jeju City

Mon 1-12

07:55-10:25

Nonstop3h 30m

HK$1,222

Hong KongJeju City

HKG - CJU

HKGCJU

Hong Kong Intl

Mon 8-12

02:45-06:40

Nonstop2h 55m

Jeju City

Mon 15-12

07:55-10:25

Nonstop3h 30m

HK$1,222

Hong KongJeju City

HKG - CJU

HKGCJU

Hong Kong Intl

Mon 10-11

02:45-06:40

Nonstop2h 55m

Jeju City

Fri 14-11

07:55-10:25

Nonstop3h 30m

HK$1,331

Hong KongJeju City

HKG - CJU

HKGCJU

Hong Kong Intl

Mon 10-11

02:45-06:40

Nonstop2h 55m

Jeju City

Sun 16-11

07:55-10:25

Nonstop3h 30m

HK$1,346

Hong KongJeju City

HKG - CJU

HKGCJU

Hong Kong Intl

Sat 22-11

02:45-06:40

Nonstop2h 55m

Jeju City

Sun 30-11

07:55-10:25

Nonstop3h 30m

HK$1,346

Hong KongJeju City

HKG - CJU

HKGCJU

Hong Kong Intl

Mon 12-1

15:20-19:10

Nonstop2h 50m

Jeju City

Fri 16-1

19:30-22:00

Nonstop3h 30m

HK$1,346

Hong KongJeju City

HKG - CJU

HKGCJU

Hong Kong Intl

Fri 9-1

02:45-06:40

Nonstop2h 55m

Jeju City

Wed 14-1

07:55-10:25

Nonstop3h 30m

HK$1,424

Hong KongJeju City

HKG - CJU

HKGCJU

Hong Kong Intl

Tue 18-11

02:45-06:40

Nonstop2h 55m

Jeju City

Sun 23-11

07:55-10:25

Nonstop3h 30m

HK$1,432

Hong KongJeju City

HKG - CJU

HKGCJU

Hong Kong Intl

Tue 9-12

13:15-21:20

1 stop7h 05m

Jeju City

Mon 15-12

07:55-10:25

Nonstop3h 30m

HK$1,440

Flights are sorted by cheapest return flights first.

Deals found on 11-10

Showing 1-10 of 33 results
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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.
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

How long is the flight to South Korea?

On average, a flight from Hong Kong to South Korea takes 5 hours 55 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.

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 October 2025.

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.

Weekly flight availability to South Korea

The most flights from Hong Kong to South Korea are scheduled on a Friday (37 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (21 on average).

What are the cheapest airlines that fly to South Korea?

The cheapest airlines flying from Hong Kong to South Korea are T'way Air, Jin Air and Hahn Air Systems.

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.

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).

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 11 October 2025.
The most popular places in South Korea to fly to are Seoul, Incheon, Busan and Jeju City.

Reviews of airlines servicing South Korea

Get insights into the airlines that provide service to South Korea. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to South Korea. Reviews last updated 11 October 2025.
See what other customers who have flown with Korean Air, Asiana Airlines, andCathay Pacific to South Korea have to say. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Korean Air
8.4
Very Good
1,148 reviews
Check prices

Crew

8.7

Boarding

8.5

Comfort

8.3

Overall

8.4

Food

8.1

Entertainment

8.2

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Korean Air
8.4
Very Good
1,148 reviews
Korean Air
8.4
Very Good
1,148 reviews
Check prices

Crew

8.7

Boarding

8.5

Comfort

8.3

Overall

8.4

Food

8.1

Entertainment

8.2

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Asiana Airlines
8.2
Very Good
486 reviews
Korean Air
8.4
Very Good
1,148 reviews
Check prices

Crew

8.7

Boarding

8.5

Comfort

8.3

Overall

8.4

Food

8.1

Entertainment

8.2

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Cathay Pacific
7.6
Good
1,020 reviews
Korean Air
8.4
Very Good
1,148 reviews
Check prices

Crew

8.7

Boarding

8.5

Comfort

8.3

Overall

8.4

Food

8.1

Entertainment

8.2

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
HK Express
7.2
Good
43 reviews
Korean Air
8.4
Very Good
1,148 reviews
Check prices

Crew

8.7

Boarding

8.5

Comfort

8.3

Overall

8.4

Food

8.1

Entertainment

8.2

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.

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, T'way Air is rated the highest out of the airlines that fly to South Korea.

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

    Jeju City is currently the cheapest airport to fly to in South Korea. One-way flights to Jeju City typically cost HK$77, while return flights cost around HK$431.

  • How much is a return flight to South Korea?

    A return flight to South Korea will typically cost around HK$102, however they can be found for as little as HK$98.

  • 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 50 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

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Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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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