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HK$940+ 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 21-6. Fares are subject to change and may not be available on all flights or dates of travel.
— SEL
21 Jun — 28 Jun1
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 22 May 2026.

Mon 8-613:15
HKG
-
ICN
Nonstop3h 50m
T'way Air
Wed 10-608:45
ICN
-
HKG
Nonstop4h 10m
T'way Air
Deal found 20-5HK$1,488
Mon 1-613:15
HKG
-
ICN
Nonstop3h 50m
T'way Air
Thu 4-608:45
ICN
-
HKG
Nonstop4h 10m
T'way Air
Deal found 20-5HK$1,496
Wed 20-516:55
HKG
-
ICN
Nonstop3h 40m
HK Express
Sun 24-506:40
ICN
-
HKG
Nonstop3h 50m
HK Express
Deal found 17-5HK$1,504
Mon 1-616:55
HKG
-
ICN
Nonstop3h 40m
HK Express
Wed 3-602:35
ICN
-
HKG
Nonstop3h 50m
HK Express
Deal found 17-5HK$1,512
Mon 1-621:00
HKG
-
ICN
Nonstop3h 40m
HK Express
Thu 4-602:35
ICN
-
HKG
Nonstop3h 50m
HK Express
Deal found 17-5HK$1,520
Tue 19-521:00
HKG
-
ICN
Nonstop3h 40m
HK Express
Wed 20-506:40
ICN
-
HKG
Nonstop3h 50m
HK Express
Deal found 17-5HK$1,528
Sat 4-700:35
HKG
-
ICN
Nonstop3h 55m
Jeju Air
Sat 11-720:40
ICN
-
HKG
Nonstop3h 55m
Jeju Air
Deal found 17-5HK$1,535
Mon 8-613:15
HKG
-
ICN
Nonstop3h 50m
T'way Air
Fri 12-608:45
ICN
-
HKG
Nonstop4h 10m
T'way Air
Deal found 18-5HK$1,543
Fri 7-813:15
HKG
-
ICN
Nonstop3h 50m
T'way Air
Wed 12-808:45
ICN
-
HKG
Nonstop4h 10m
T'way Air
Deal found 20-5HK$1,551
Wed 10-613:15
HKG
-
ICN
Nonstop3h 50m
Multiple Airlines
Thu 18-612:45
ICN
-
HKG
Nonstop3h 50m
Multiple Airlines
Deal found 20-5HK$1,559
Sat 13-613:15
HKG
-
ICN
Nonstop3h 50m
T'way Air
Wed 17-608:45
ICN
-
HKG
Nonstop4h 10m
T'way Air
Deal found 20-5HK$1,567
Mon 1-600:35
HKG
-
ICN
Nonstop3h 55m
Jeju Air
Thu 4-620:40
ICN
-
HKG
Nonstop3h 55m
Jeju Air
Deal found 21-5HK$1,575

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 22 May 2026.

Return from

HK$1,488

One-way from

HK$940

Popular in

December

Cheapest in

September

Average price

HK$1,786

Good round-trip deal

HK$1,905 or less

Good one-way deal

HK$1,033 or less
T'way Air
  • T'way Air
  • 8-6-10-6
  • Nonstop
  • 8h 00m total
  • Hong Kong to Seoul
Search Deals
T'way Air
  • T'way Air
  • 21-6
  • Nonstop
  • 3h 50m total
  • Hong Kong to Seoul
Search Deals
Highest demand for flights based on searches. 3% potential increase in price (HK$68 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (HK$58 potential savings vs. average return price).
Search Deals
Average for return flights in May 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 22 May 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 KongSeoul

HKG - GMP

HKGGMP

Hong Kong Intl

Sat 6-6

20:05-11:00

1 stop13h 55m

Seoul Gimpo Intl

Thu 11-6

20:50-12:45

1 stop16h 55m

HK$2,178

Hong KongSeoul

HKG - GMP

HKGGMP

Hong Kong Intl

Tue 2-6

02:30-09:30

1 stop6h 00m

Seoul Gimpo Intl

Tue 9-6

20:25-09:40

1 stop14h 15m

HK$2,460

Hong KongSeoul

HKG - GMP

HKGGMP

Hong Kong Intl

Mon 1-6

18:50-11:00

1 stop15h 10m

Seoul Gimpo Intl

Fri 5-6

20:50-11:00

1 stop15h 10m

HK$2,460

Hong KongSeoul

HKG - GMP

HKGGMP

Hong Kong Intl

Mon 8-6

09:45-19:50

1 stop9h 05m

Seoul Gimpo Intl

Wed 17-6

12:00-21:05

1 stop10h 05m

HK$2,515

Hong KongSeoul

HKG - GMP

HKGGMP

Hong Kong Intl

Mon 1-6

09:45-19:50

1 stop9h 05m

Seoul Gimpo Intl

Tue 9-6

12:00-21:05

1 stop10h 05m

HK$2,515

Hong KongIncheon

HKG - ICN

HKGICN

Hong Kong Intl

Wed 24-6

14:35-13:15

2 stops21h 40m

Incheon Intl

Tue 30-6

16:15-23:45

1 stop8h 30m

HK$2,522

Hong KongSeoul

HKG - GMP

HKGGMP

Hong Kong Intl

Tue 16-6

02:30-09:55

1 stop6h 25m

Seoul Gimpo Intl

Wed 24-6

18:15-09:40

1 stop16h 25m

HK$2,593

Hong KongSeoul

HKG - GMP

HKGGMP

Hong Kong Intl

Tue 8-9

02:30-09:30

1 stop6h 00m

Seoul Gimpo Intl

Thu 17-9

19:15-09:40

1 stop15h 25m

HK$2,601

Hong KongSeoul

HKG - GMP

HKGGMP

Hong Kong Intl

Sun 5-7

02:30-11:50

1 stop8h 20m

Seoul Gimpo Intl

Mon 13-7

19:25-09:40

1 stop15h 15m

HK$2,773

Hong KongSeoul

HKG - GMP

HKGGMP

Hong Kong Intl

Mon 8-6

09:45-19:50

1 stop9h 05m

Seoul Gimpo Intl

Fri 12-6

12:00-21:05

1 stop10h 05m

HK$2,828

Flights are sorted by cheapest return flights first.

Deals found on 18-5

Showing 1-10 of 45 resultsSorted by cheapest first
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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

How long is the flight to Seoul?

On average, a flight from Hong Kong to Seoul takes 5 hours 15 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.

Weekly flight availability to Seoul

The most flights from Hong Kong to Seoul are scheduled on a Wednesday (48 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (34 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 T'way Air.

HK Express
HK Express
From HK$1,128
Cathay Pacific
Cathay Pacific
From HK$2,076
T'way Air
T'way Air
From HK$890
Korean Air
Korean Air
From HK$2,137

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).

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

To ensure you get the cheapest price possible for a flight to Seoul, you should look to book at least 73 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.

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 May 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 Sunday at midday, when prices are usually at their highest.

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 22 May 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
1,217 reviews
Check prices

Comfort

8.3

Entertainment

8.2

Crew

8.7

Boarding

8.5

Overall

8.4

Food

8.1

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
1,217 reviews
Korean Air
8.4
Very Good
1,217 reviews
Check prices

Comfort

8.3

Entertainment

8.2

Crew

8.7

Boarding

8.5

Overall

8.4

Food

8.1

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
8.1
Very Good
534 reviews
Korean Air
8.4
Very Good
1,217 reviews
Check prices

Comfort

8.3

Entertainment

8.2

Crew

8.7

Boarding

8.5

Overall

8.4

Food

8.1

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
1,342 reviews
Korean Air
8.4
Very Good
1,217 reviews
Check prices

Comfort

8.3

Entertainment

8.2

Crew

8.7

Boarding

8.5

Overall

8.4

Food

8.1

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
45 reviews
Korean Air
8.4
Very Good
1,217 reviews
Check prices

Comfort

8.3

Entertainment

8.2

Crew

8.7

Boarding

8.5

Overall

8.4

Food

8.1

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?

    Incheon Intl is currently the cheapest airport to fly to in Seoul. One-way flights to Incheon Intl typically cost HK$286, while return flights cost around HK$874.

  • 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$874.

  • 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).

  • 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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