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HK$746+ 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 21-1. Fares are subject to change and may not be available on all flights or dates of travel.
— SEL
15 Dec — 22 Dec1
1 adult
1 adult, Economy, 0 bags

Flights to Seoul in 2025

Find the latest flights to Seoul 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 15 November 2025.

Return from

HK$1,384

One-way from

HK$746

Popular in

December

Cheapest in

September

Average price

HK$1,570

Good round-trip deal

HK$1,548 or less

Good one-way deal

HK$978 or less
HK Express
  • HK Express
  • 13-1-17-1
  • Nonstop
  • 7h 35m total
  • Hong Kong to Seoul
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HK Express
  • HK Express
  • 21-1
  • Nonstop
  • 3h 30m total
  • Hong Kong to Seoul
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Highest demand for flights based on searches. 7% potential increase in price (HK$132 potential increase over avg. return price).
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Cheapest flight prices on average. 3% potential price decrease (HK$59 potential savings vs. average return price).
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Average for return flights in November 2025
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Price to beat on a round-trip flight from Hong Kong Intl to Seoul.
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Price to beat on a one-way flight from Hong Kong Intl to Seoul.
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Find flight deals to Seoul

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 15 November 2025.

Mon 8-1221:05HKG - ICN
Nonstop3h 30mHK Express
Thu 11-1215:45ICN - HKG
Nonstop4h 15mHK Express
Deal found 13-11HK$1,391
Sat 6-1221:05HKG - ICN
Nonstop3h 30mHK Express
Tue 9-1206:40ICN - HKG
Nonstop4h 10mHK Express
Deal found 13-11HK$1,399
Wed 19-1107:10HKG - ICN
Nonstop3h 30mHK Express
Mon 24-1102:20ICN - HKG
Nonstop4h 10mHK Express
Deal found 14-11HK$1,407
Fri 5-1207:10HKG - ICN
Nonstop3h 30mHK Express
Tue 9-1202:20ICN - HKG
Nonstop4h 10mHK Express
Deal found 15-11HK$1,415
Thu 20-1121:05HKG - ICN
Nonstop3h 30mHK Express
Tue 25-1115:45ICN - HKG
Nonstop4h 15mHK Express
Deal found 13-11HK$1,422
Sat 6-1221:05HKG - ICN
Nonstop3h 30mHK Express
Thu 11-1221:50ICN - HKG
Nonstop4h 05mHK Express
Deal found 12-11HK$1,430
Mon 8-1200:55HKG - ICN
Nonstop3h 35mHK Express
Sat 13-1202:20ICN - HKG
Nonstop4h 10mHK Express
Deal found 15-11HK$1,438
Wed 3-1207:10HKG - ICN
Nonstop3h 30mHK Express
Sun 7-1202:20ICN - HKG
Nonstop4h 10mHK Express
Deal found 13-11HK$1,446
Mon 24-1100:55HKG - ICN
Nonstop3h 35mHK Express
Wed 3-1215:45ICN - HKG
Nonstop4h 15mHK Express
Deal found 14-11HK$1,453
Sat 6-1221:05HKG - ICN
Nonstop3h 30mHK Express
Tue 9-1202:20ICN - HKG
Nonstop4h 10mHK Express
Deal found 14-11HK$1,461
Tue 9-1200:05HKG - ICN
Nonstop3h 55mMultiple Airlines
Mon 15-1202:20ICN - HKG
Nonstop4h 10mMultiple Airlines
Deal found 13-11HK$1,469
Wed 10-1200:55HKG - ICN
Nonstop3h 35mHK Express
Sat 13-1202:20ICN - HKG
Nonstop4h 10mHK Express
Deal found 13-11HK$1,477

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 15 November 2025.
Use the filters below to find and compare flights to Seoul that are best for you.

Fly from

Hong Kong

Route

Departure

Return

Price

Hong KongSeoul

HKG - GMP

HKGGMP

Hong Kong Intl

Sun 30-11

02:45-11:10

1 stop7h 25m

Seoul Gimpo Intl

Thu 4-12

19:05-10:25

1 stop16h 20m

HK$1,562

Hong KongSeoul

HKG - GMP

HKGGMP

Hong Kong Intl

Wed 10-12

02:45-09:05

1 stop5h 20m

Seoul Gimpo Intl

Tue 16-12

19:55-10:25

1 stop15h 30m

HK$1,624

Hong KongSeoul

HKG - GMP

HKGGMP

Hong Kong Intl

Tue 2-12

17:40-13:05

1 stop18h 25m

Seoul Gimpo Intl

Mon 8-12

14:25-13:05

1 stop23h 40m

HK$1,648

Hong KongSeoul

HKG - GMP

HKGGMP

Hong Kong Intl

Fri 5-12

02:45-11:20

1 stop7h 35m

Seoul Gimpo Intl

Wed 10-12

19:30-10:25

1 stop15h 55m

HK$1,679

Hong KongSeoul

HKG - GMP

HKGGMP

Hong Kong Intl

Sat 29-11

02:45-09:05

1 stop5h 20m

Seoul Gimpo Intl

Tue 2-12

19:55-10:25

1 stop15h 30m

HK$1,718

Hong KongSeoul

HKG - GMP

HKGGMP

Hong Kong Intl

Thu 29-1

02:45-10:30

1 stop6h 45m

Seoul Gimpo Intl

Wed 4-2

17:40-22:35

1 stop5h 55m

HK$1,772

Hong KongSeoul

HKG - GMP

HKGGMP

Hong Kong Intl

Mon 8-12

20:15-13:05

1 stop15h 50m

Seoul Gimpo Intl

Sat 13-12

14:25-20:50

1 stop7h 25m

HK$1,803

Hong KongSeoul

HKG - GMP

HKGGMP

Hong Kong Intl

Sat 6-12

20:15-13:05

1 stop15h 50m

Seoul Gimpo Intl

Wed 10-12

14:25-20:50

1 stop7h 25m

HK$1,811

Hong KongSeoul

HKG - GMP

HKGGMP

Hong Kong Intl

Fri 9-1

14:45-22:05

1 stop6h 20m

Seoul Gimpo Intl

Sun 11-1

19:50-10:25

1 stop15h 35m

HK$1,819

Hong KongSeoul

HKG - GMP

HKGGMP

Hong Kong Intl

Thu 22-1

15:20-22:20

1 stop6h 00m

Seoul Gimpo Intl

Mon 26-1

18:40-10:25

1 stop16h 45m

HK$1,834

Flights are sorted by cheapest return flights first.

Deals found on 14-11

Showing 1-10 of 46 results
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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 14 November 2025.

To ensure you get the cheapest price possible for a flight to Seoul, you should look to book at least 54 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 37 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 16 December 2024.

Users looking for the lowest fares to Seoul should consider flying on Tuesday 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 Seoul

The most flights from Hong Kong to Seoul are scheduled on a Saturday (37 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (23 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, Hong Kong Airlines and Cathay Pacific.

HK Express
HK Express
From HK$956
Hong Kong Airlines
Hong Kong Airlines
From HK$1,084
Cathay Pacific
Cathay Pacific
From HK$1,944
Korean Air
Korean Air
From HK$1,703

What are the cheapest airlines that fly to Seoul?

The cheapest airlines flying from Hong Kong to Seoul are T'way Air, Jeju Air and Jin 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 15 November 2025.
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
1,163 reviews
Check prices

Boarding

8.5

Crew

8.7

Food

8.1

Entertainment

8.2

Overall

8.4

Comfort

8.3

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
1,163 reviews
Korean Air
8.4
Very Good
1,163 reviews
Check prices

Boarding

8.5

Crew

8.7

Food

8.1

Entertainment

8.2

Overall

8.4

Comfort

8.3

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
487 reviews
Korean Air
8.4
Very Good
1,163 reviews
Check prices

Boarding

8.5

Crew

8.7

Food

8.1

Entertainment

8.2

Overall

8.4

Comfort

8.3

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
1,060 reviews
Korean Air
8.4
Very Good
1,163 reviews
Check prices

Boarding

8.5

Crew

8.7

Food

8.1

Entertainment

8.2

Overall

8.4

Comfort

8.3

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
1,163 reviews
Check prices

Boarding

8.5

Crew

8.7

Food

8.1

Entertainment

8.2

Overall

8.4

Comfort

8.3

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

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

    Incheon Intl is currently the cheapest airport to fly to in Seoul. One-way flights to Incheon Intl typically cost HK$384, while return flights cost around HK$890.

  • How much is a return flight to Seoul?

    A return flight to Seoul will typically cost around HK$892, however they can be found for as little as HK$890.

  • 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 30 minutes).

  • Which airport is closest to National Museum of Korea?

    f being close to National Museum of Korea is important to you, you’ll want to land at Incheon Intl Airport.

  • 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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