Find flights
Deals
Airlines

HK$854+ Cheap flights to Seoul

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8-5. Fares are subject to change and may not be available on all flights or dates of travel.
— SEL
23 May — 30 May1
1 adult
1 adult, Economy, 0 bags

Flights to Seoul in 2026

Enter your travel dates to find the best prices.

Cheapest flights to Seoul
Explore the most affordable flight options available to Seoul. Find the lowest fares based on data from user searches, with prices last updated on 23 April 2026.

Thu 21-501:25
HKG
-
ICN
Nonstop4h 00m
Air Busan
Sun 24-521:30
ICN
-
HKG
Nonstop3h 45m
Air Busan
Deal found 21-4HK$1,418
Fri 8-513:15
HKG
-
ICN
Nonstop3h 50m
Multiple Airlines
Sun 10-520:40
ICN
-
HKG
Nonstop3h 55m
Multiple Airlines
Deal found 18-4HK$1,457
Mon 27-400:35
HKG
-
ICN
Nonstop3h 55m
Jeju Air
Fri 8-520:40
ICN
-
HKG
Nonstop3h 55m
Jeju Air
Deal found 20-4HK$1,465
Tue 21-400:05
HKG
-
ICN
Nonstop3h 50m
Eastar Jet
Sat 25-420:10
ICN
-
HKG
Nonstop3h 35m
Eastar Jet
Deal found 21-4HK$1,504
Wed 3-616:55
HKG
-
ICN
Nonstop3h 40m
Multiple Airlines
Sun 7-621:30
ICN
-
HKG
Nonstop3h 45m
Multiple Airlines
Deal found 21-4HK$1,512
Tue 21-400:05
HKG
-
ICN
Nonstop3h 50m
Eastar Jet
Fri 24-420:10
ICN
-
HKG
Nonstop3h 35m
Eastar Jet
Deal found 21-4HK$1,519
Tue 21-400:35
HKG
-
ICN
Nonstop3h 55m
Jeju Air
Fri 24-420:40
ICN
-
HKG
Nonstop3h 55m
Jeju Air
Deal found 20-4HK$1,527
Wed 6-501:25
HKG
-
ICN
Nonstop4h 00m
Air Busan
Sun 10-521:30
ICN
-
HKG
Nonstop3h 45m
Air Busan
Deal found 21-4HK$1,543
Tue 21-400:05
HKG
-
ICN
Nonstop3h 50m
Multiple Airlines
Sun 26-408:45
ICN
-
HKG
Nonstop4h 10m
Multiple Airlines
Deal found 21-4HK$1,551
Tue 21-421:00
HKG
-
ICN
Nonstop3h 40m
Multiple Airlines
Tue 28-408:45
ICN
-
HKG
Nonstop4h 10m
Multiple Airlines
Deal found 19-4HK$1,559
Fri 8-513:15
HKG
-
ICN
Nonstop3h 50m
Multiple Airlines
Wed 13-509:15
ICN
-
HKG
Nonstop3h 45m
Multiple Airlines
Deal found 21-4HK$1,566
Mon 1-602:35
HKG
-
GMP
1 stop14h 15m
Multiple Airlines
Tue 9-618:15
GMP
-
HKG
1 stop16h 25m
Multiple Airlines
Deal found 18-4HK$2,060

Find flight deals to Seoul

Find the latest flights to Seoul in 2026, 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 23 April 2026.

Return from

HK$1,418

One-way from

HK$854

Popular in

February

Cheapest in

September

Average price

HK$2,130

Good round-trip deal

HK$1,596 or less

Good one-way deal

HK$981 or less
Air Busan
  • Air Busan
  • 21-5-24-5
  • Nonstop
  • 7h 45m total
  • Hong Kong to Seoul
Search Deals
T'way Air
  • T'way Air
  • 8-5
  • Nonstop
  • 3h 50m total
  • Hong Kong to Seoul
Search Deals
Highest demand for flights based on searches. 5% potential increase in price (HK$111 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (HK$61 potential savings vs. average return price).
Search Deals
Average for return flights in April 2026
Search Deals
Price to beat on a round-trip flight from Hong Kong Intl to Seoul.
Search Deals
Price to beat on a one-way flight from Hong Kong Intl to Seoul.
Search Deals

Cheapflights Fare Finder

 
Locate flights to Seoul 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 23 April 2026.
Use the filters below to find and compare flights to Seoul that are best for you.

Fly from

Route

Departure

Return

Price

Cheapest return flight

Hong KongIncheon

HKG - ICN

HKGICN

Hong Kong Intl

Fri 29-5

11:25-22:45

1 stop10h 20m

Incheon Intl

Thu 4-6

07:45-16:05

1 stop9h 20m

HK$2,224

Hong KongSeoul

HKG - GMP

HKGGMP

Hong Kong Intl

Wed 1-7

02:30-09:30

1 stop6h 00m

Seoul Gimpo Intl

Tue 7-7

19:25-09:40

1 stop15h 15m

HK$2,256

Hong KongIncheon

HKG - ICN

HKGICN

Hong Kong Intl

Sat 25-7

13:40-22:40

1 stop8h 00m

Incheon Intl

Mon 27-7

16:45-16:30

1 stop24h 45m

HK$2,326

Hong KongSeoul

HKG - GMP

HKGGMP

Hong Kong Intl

Fri 28-8

02:35-09:35

1 stop6h 00m

Seoul Gimpo Intl

Wed 2-9

18:15-09:40

1 stop16h 25m

HK$2,475

Hong KongIncheon

HKG - ICN

HKGICN

Hong Kong Intl

Tue 14-7

21:15-22:45

1 stop24h 30m

Incheon Intl

Sat 18-7

14:15-13:35

2 stops24h 20m

HK$2,530

Hong KongIncheon

HKG - ICN

HKGICN

Hong Kong Intl

Sun 24-5

13:35-14:50

1 stop24h 15m

Incheon Intl

Tue 26-5

14:15-13:35

2 stops24h 20m

HK$2,530

Hong KongSeoul

HKG - GMP

HKGGMP

Hong Kong Intl

Mon 15-6

17:45-13:05

1 stop18h 20m

Seoul Gimpo Intl

Thu 18-6

14:25-21:05

1 stop7h 40m

HK$2,569

Hong KongSeoul

HKG - GMP

HKGGMP

Hong Kong Intl

Fri 26-6

22:15-15:00

1 stop15h 45m

Seoul Gimpo Intl

Wed 1-7

19:00-09:40

1 stop15h 40m

HK$2,655

Hong KongSeoul

HKG - GMP

HKGGMP

Hong Kong Intl

Sun 5-7

02:30-09:55

1 stop6h 25m

Seoul Gimpo Intl

Thu 9-7

19:25-09:40

1 stop15h 15m

HK$2,718

Hong KongSeoul

HKG - GMP

HKGGMP

Hong Kong Intl

Mon 22-6

12:45-19:45

1 stop6h 00m

Seoul Gimpo Intl

Wed 24-6

19:25-09:40

1 stop15h 15m

HK$2,749

Flights are sorted by cheapest return flights first.

Deals found on 22-4

Showing 1-10 of 48 resultsSorted by cheapest first
1
2
3
...
5

Best time to book a flight to Seoul

Have a flexible travel schedule? Discover the best time to fly to Seoul 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 Seoul

When is the best time to book a flight to Seoul?

Use this chart to determine the optimal time to book a return flight from Hong Kong to Seoul. Price data was last updated on 17 April 2026.

To ensure you get the cheapest price possible for a flight to Seoul, you should look to book at least 85 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

How long is the flight to Seoul?

On average, a flight from Hong Kong to Seoul takes 4 hours 47 minutes. Flights to Seoul 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 Seoul?

Use this chart to determine the cheapest time to fly return from Hong Kong to Seoul. Price data was last updated on 18 April 2026.

Users looking for the lowest fares to Seoul should consider flying on Monday afternoons, when prices are typically cheapest. Budget-minded travellers will want to avoid Thursday at midday, when prices are usually at their highest.

Weekly flight availability to Seoul

The most flights from Hong Kong to Seoul are scheduled on a Tuesday (46 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (39 on average).

What are the most popular airlines that fly to Seoul?

The most popular airlines flying from Hong Kong to Seoul are HK Express, Cathay Pacific and Korean Air.

HK Express
HK Express
From HK$1,040
Cathay Pacific
Cathay Pacific
From HK$2,120
Korean Air
Korean Air
From HK$2,139
T'way Air
T'way Air
From HK$903

What are the cheapest airlines that fly to Seoul?

The cheapest airlines flying from Hong Kong to Seoul are AIR PREMIA, Eastar Jet and Jeju Air.

Rainfall in Seoul by month

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

In terms of precipitation, rainfall in Seoul ranges from 27.0 - 253.0 mm per month. July is typically the wettest month, when rainfall can reach 253.0 mm. December is typically the driest time to visit Seoul when rainfall is around 27.0 mm.

Temperature in Seoul by month

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

If weather is an important factor for your trip to Seoul, 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).

Reviews of airlines servicing Seoul

Get insights into the airlines that provide service to Seoul. 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 Seoul. Reviews last updated 23 April 2026.
Read through reviews of airlines serving South Korea, such as Korean Air,Asiana Airlines, andCathay Pacific. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Korean Air
8.4
Very Good
1,212 reviews
Check prices

Boarding

8.5

Comfort

8.3

Food

8.1

Crew

8.7

Entertainment

8.2

Overall

8.4

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
1,212 reviews
Korean Air
8.4
Very Good
1,212 reviews
Check prices

Boarding

8.5

Comfort

8.3

Food

8.1

Crew

8.7

Entertainment

8.2

Overall

8.4

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
8.0
Very Good
519 reviews
Korean Air
8.4
Very Good
1,212 reviews
Check prices

Boarding

8.5

Comfort

8.3

Food

8.1

Crew

8.7

Entertainment

8.2

Overall

8.4

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
1,289 reviews
Korean Air
8.4
Very Good
1,212 reviews
Check prices

Boarding

8.5

Comfort

8.3

Food

8.1

Crew

8.7

Entertainment

8.2

Overall

8.4

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
7.3
Good
44 reviews
Korean Air
8.4
Very Good
1,212 reviews
Check prices

Boarding

8.5

Comfort

8.3

Food

8.1

Crew

8.7

Entertainment

8.2

Overall

8.4

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 Seoul

  • Can I find cheaper flights to Seoul 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 Seoul on Cheapflights that require 1 or 2 stops for potential cost savings.

  • What is the best airline to fly to Seoul?

    Based on reviews from Cheapflights users, AIR PREMIA is rated the highest out of the airlines that fly to Seoul.

  • What is the cheapest airport to fly to in Seoul?

    Seoul Gimpo Intl is currently the cheapest airport to fly to in Seoul. One-way flights to Seoul Gimpo Intl typically cost HK$162, while return flights cost around HK$614.

  • How much is a return flight to Seoul?

    A return flight to Seoul will typically cost around HK$1,601, however they can be found for as little as HK$629.

  • Where does the fastest flight to Seoul depart from?

    For those looking to save time traveling to Seoul, Hong Kong Intl offers the quickest one-way flight (3 hours 35 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

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

Find the best flight deals to Seoul

Some of the lowest fares we’ve come across for flights to Seoul.
Flights from Hong Kong to Incheon Intl
Flights from Macau to Incheon Intl

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 Seoul?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Seoul today with Cheapflights!

Why should you use Cheapflights to find cheap flight tickets to Seoul?

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights to Seoul for you. Better yet — we are completely free to use.

Can Cheapflights find flights to Seoul with no change fees?

Yes! Cheapflights helps users easily find flights to Seoul with no change fees.

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

Yes! Start tracking prices for Seoul flights today and get alerted when prices change. To subscribe and begin receiving alerts, click the bell icon next to the flight deals above and provide your email address.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book With Flexibility

Our users can plan ahead with confidence and find flights with no change fees.

Travel Smart

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.