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HK$731+ 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 26-10. Fares are subject to change and may not be available on all flights or dates of travel.
— SEL
16 Oct — 23 Oct1
1 adult
1 adult, Economy

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 16 September 2025.

Return from

HK$1,260

One-way from

HK$731

Popular in

December

Cheapest in

March

Average price

HK$1,338

Good round-trip deal

HK$1,431 or less

Good one-way deal

HK$990 or less
HK Express
  • HK Express
  • 29-10-5-11
  • Nonstop
  • 8h 05m total
  • Hong Kong to Seoul
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HK Express
  • HK Express
  • 26-10
  • Nonstop
  • 3h 30m total
  • Hong Kong to Seoul
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Highest demand for flights based on searches. 8% potential increase in price (HK$1,068 potential increase over avg. return price).
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Cheapest flight prices on average. 3% potential price decrease (HK$449 potential savings vs. average return price).
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Average for return flights in September 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

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 16 September 2025.

Wed 29-1000:05HKG - ICN
Nonstop3h 55mMultiple Airlines
Wed 5-1102:20ICN - HKG
Nonstop4h 10mMultiple Airlines
Deal found 15-9HK$1,260
Mon 22-900:40HKG - ICN
Nonstop3h 50mMultiple Airlines
Sat 27-915:25ICN - HKG
Nonstop3h 50mMultiple Airlines
Deal found 13-9HK$1,276
Mon 22-900:40HKG - ICN
Nonstop3h 50mMultiple Airlines
Fri 26-912:45ICN - HKG
Nonstop3h 50mMultiple Airlines
Deal found 12-9HK$1,283
Sun 26-1021:05HKG - ICN
Nonstop3h 30mMultiple Airlines
Wed 29-1008:15ICN - HKG
Nonstop4h 00mMultiple Airlines
Deal found 14-9HK$1,291
Wed 29-1021:05HKG - ICN
Nonstop3h 30mHK Express
Sat 1-1102:20ICN - HKG
Nonstop4h 10mHK Express
Deal found 14-9HK$1,299
Sun 21-907:15HKG - ICN
Nonstop3h 35mMultiple Airlines
Sun 28-909:45ICN - HKG
Nonstop3h 50mMultiple Airlines
Deal found 13-9HK$1,307
Sat 4-1013:35HKG - ICN
Nonstop3h 40mJeju Air
Tue 14-1009:45ICN - HKG
Nonstop3h 50mJeju Air
Deal found 14-9HK$1,314
Sun 21-900:40HKG - ICN
Nonstop3h 50mMultiple Airlines
Fri 26-902:35ICN - HKG
Nonstop3h 45mMultiple Airlines
Deal found 15-9HK$1,322
Sun 2-1100:05HKG - ICN
Nonstop3h 55mMultiple Airlines
Sat 8-1121:50ICN - HKG
Nonstop4h 05mMultiple Airlines
Deal found 13-9HK$1,330
Sat 25-1016:55HKG - ICN
Nonstop3h 40mHK Express
Tue 28-1015:45ICN - HKG
Nonstop4h 15mHK Express
Deal found 12-9HK$1,338
Fri 24-1013:30HKG - ICN
Nonstop3h 40mMultiple Airlines
Fri 31-1015:45ICN - HKG
Nonstop4h 15mMultiple Airlines
Deal found 14-9HK$1,346
Wed 17-902:20HKG - GMP
1 stop6h 35mMultiple Airlines
Tue 23-919:00GMP - HKG
1 stop16h 00mMultiple Airlines
Deal found 15-9HK$1,540

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 16 September 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 KongIncheon

HKG - ICN

HKGICN

Hong Kong Intl

Fri 3-10

00:40-05:30

Nonstop3h 50m

Incheon Intl

Fri 10-10

02:35-05:20

Nonstop3h 45m

HK$1,268

Hong KongIncheon

HKG - ICN

HKGICN

Hong Kong Intl

Fri 7-11

10:15-21:30

1 stop10h 15m

Incheon Intl

Sat 8-11

02:20-05:30

Nonstop4h 10m

HK$1,353

Hong KongIncheon

HKG - ICN

HKGICN

Hong Kong Intl

Sun 19-10

16:55-20:10

1 stop26h 15m

Incheon Intl

Sat 25-10

22:30-01:20

Nonstop3h 50m

HK$1,361

Hong KongIncheon

HKG - ICN

HKGICN

Hong Kong Intl

Sun 19-10

20:50-20:10

1 stop22h 20m

Incheon Intl

Sat 25-10

21:15-09:10

1 stop12h 55m

HK$1,563

Hong KongIncheon

HKG - ICN

HKGICN

Hong Kong Intl

Thu 25-9

00:40-05:30

Nonstop3h 50m

Incheon Intl

Sun 12-10

20:05-23:15

Nonstop4h 10m

HK$1,672

Hong KongIncheon

HKG - ICN

HKGICN

Hong Kong Intl

Thu 25-9

00:40-05:30

Nonstop3h 50m

Incheon Intl

Mon 13-10

20:05-23:15

Nonstop4h 10m

HK$1,766

Hong KongSeoul

HKG - GMP

HKGGMP

Hong Kong Intl

Thu 4-12

02:45-11:00

1 stop7h 15m

Seoul Gimpo Intl

Mon 8-12

20:20-10:25

1 stop15h 05m

HK$1,804

Hong KongSeoul

HKG - GMP

HKGGMP

Hong Kong Intl

Mon 27-10

02:45-09:40

1 stop5h 55m

Seoul Gimpo Intl

Tue 4-11

20:45-10:25

1 stop14h 40m

HK$1,859

Hong KongSeoul

HKG - GMP

HKGGMP

Hong Kong Intl

Thu 5-3

18:45-19:50

1 stop24h 05m

Seoul Gimpo Intl

Mon 9-3

20:50-17:45

1 stop21h 55m

HK$1,890

Hong KongSeoul

HKG - GMP

HKGGMP

Hong Kong Intl

Sun 15-2

18:45-19:50

1 stop24h 05m

Seoul Gimpo Intl

Sun 22-2

20:50-17:45

1 stop21h 55m

HK$1,890

Flights are sorted by cheapest return flights first.

Deals found on 14-9

Showing 1-10 of 45 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 12 September 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 57 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 Friday (34 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (24 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$123
Hong Kong Airlines
Hong Kong Airlines
From HK$140
Cathay Pacific
Cathay Pacific
From HK$256
Korean Air
Korean Air
From HK$228

What are the cheapest airlines that fly to Seoul?

The cheapest airlines flying from Hong Kong to Seoul are T'way Air, AIR PREMIA 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 16 September 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
1,139 reviews
Check prices

Overall

8.4

Crew

8.7

Boarding

8.5

Comfort

8.3

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
1,139 reviews
Korean Air
8.4
Very Good
1,139 reviews
Check prices

Overall

8.4

Crew

8.7

Boarding

8.5

Comfort

8.3

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
479 reviews
Korean Air
8.4
Very Good
1,139 reviews
Check prices

Overall

8.4

Crew

8.7

Boarding

8.5

Comfort

8.3

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
993 reviews
Korean Air
8.4
Very Good
1,139 reviews
Check prices

Overall

8.4

Crew

8.7

Boarding

8.5

Comfort

8.3

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 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?

    Seoul Gimpo Intl is currently the cheapest airport to fly to in Seoul. One-way flights to Seoul Gimpo Intl typically cost HK$151, while return flights cost around HK$982.

  • How much is a return flight to Seoul?

    A return flight to Seoul will typically cost around HK$302, however they can be found for as little as HK$126.

  • 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 15 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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