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HK$846+ 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 22-4. Fares are subject to change and may not be available on all flights or dates of travel.
— SEL
15 May — 22 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 15 April 2026.

Wed 15-413:15
HKG
-
ICN
Nonstop3h 50m
T'way Air
Wed 22-408:45
ICN
-
HKG
Nonstop4h 10m
T'way Air
Deal found 10-4HK$1,394
Tue 21-400:05
HKG
-
ICN
Nonstop3h 50m
Multiple Airlines
Tue 28-408:45
ICN
-
HKG
Nonstop4h 10m
Multiple Airlines
Deal found 13-4HK$1,418
Tue 14-413:15
HKG
-
ICN
Nonstop3h 50m
T'way Air
Tue 21-408:45
ICN
-
HKG
Nonstop4h 10m
T'way Air
Deal found 13-4HK$1,426
Tue 21-400:05
HKG
-
ICN
Nonstop3h 50m
Multiple Airlines
Mon 27-408:45
ICN
-
HKG
Nonstop4h 10m
Multiple Airlines
Deal found 10-4HK$1,433
Wed 15-413:15
HKG
-
ICN
Nonstop3h 50m
Multiple Airlines
Tue 21-420:10
ICN
-
HKG
Nonstop3h 35m
Multiple Airlines
Deal found 11-4HK$1,441
Mon 20-400:35
HKG
-
ICN
Nonstop3h 55m
Multiple Airlines
Sun 26-408:45
ICN
-
HKG
Nonstop4h 10m
Multiple Airlines
Deal found 12-4HK$1,457
Tue 21-400:05
HKG
-
ICN
Nonstop3h 50m
Multiple Airlines
Sat 25-420:40
ICN
-
HKG
Nonstop3h 55m
Multiple Airlines
Deal found 11-4HK$1,473
Mon 20-400:35
HKG
-
ICN
Nonstop3h 55m
Multiple Airlines
Fri 24-421:30
ICN
-
HKG
Nonstop3h 45m
Multiple Airlines
Deal found 10-4HK$1,480
Mon 20-400:35
HKG
-
ICN
Nonstop3h 55m
Multiple Airlines
Mon 27-408:45
ICN
-
HKG
Nonstop4h 10m
Multiple Airlines
Deal found 14-4HK$1,488
Thu 16-418:50
HKG
-
GMP
1 stop24h 00m
China Eastern
Wed 22-420:50
GMP
-
HKG
1 stop21h 50m
China Eastern
Deal found 11-4HK$1,935
Tue 21-409:45
HKG
-
GMP
1 stop9h 05m
China Eastern
Tue 28-412:00
GMP
-
HKG
1 stop12h 45m
China Eastern
Deal found 13-4HK$1,974
Wed 22-412:50
HKG
-
GMP
1 stop21h 10m
China Eastern
Tue 28-412:00
GMP
-
HKG
1 stop12h 45m
China Eastern
Deal found 13-4HK$2,005

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 15 April 2026.

Return from

HK$1,402

One-way from

HK$846

Popular in

February

Cheapest in

September

Average price

HK$2,162

Good round-trip deal

HK$1,504 or less

Good one-way deal

HK$921 or less
Air Busan
  • Air Busan
  • 24-5-31-5
  • Nonstop
  • 7h 45m total
  • Hong Kong to Seoul
Search Deals
Air Busan
  • Air Busan
  • 22-4
  • Nonstop
  • 4h 00m total
  • Hong Kong to Seoul
Search Deals
Highest demand for flights based on searches. 5% potential increase in price (HK$117 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (HK$62 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 15 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

Sun 30-8

11:25-22:45

1 stop10h 20m

Incheon Intl

Tue 1-9

07:45-16:05

1 stop9h 20m

HK$2,225

Hong KongSeoul

HKG - GMP

HKGGMP

Hong Kong Intl

Sat 13-6

17:45-13:05

1 stop18h 20m

Seoul Gimpo Intl

Wed 17-6

14:25-21:45

1 stop8h 20m

HK$2,608
Fastest return journey

Hong KongIncheon

HKG - ICN

HKGICN

Hong Kong Intl

Fri 1-5

00:35-05:30

Nonstop3h 55m

Incheon Intl

Thu 7-5

20:40-23:35

Nonstop3h 55m

HK$2,773

Hong KongSeoul

HKG - GMP

HKGGMP

Hong Kong Intl

Tue 26-5

11:40-17:10

2 stops28h 30m

Seoul Gimpo Intl

Tue 2-6

18:15-09:40

1 stop16h 25m

HK$3,258

Hong KongSeoul

HKG - GMP

HKGGMP

Hong Kong Intl

Mon 25-5

13:40-12:25

1 stop21h 45m

Seoul Gimpo Intl

Sun 31-5

13:30-22:45

1 stop10h 15m

HK$3,305

Hong KongSeoul

HKG - GMP

HKGGMP

Hong Kong Intl

Wed 13-5

20:05-11:00

1 stop13h 55m

Seoul Gimpo Intl

Sun 17-5

12:00-21:05

1 stop10h 05m

HK$3,376

Hong KongIncheon

HKG - ICN

HKGICN

Hong Kong Intl

Thu 28-5

09:45-20:40

2 stops9h 55m

Incheon Intl

Thu 4-6

14:15-23:45

2 stops10h 30m

HK$3,384

Hong KongSeoul

HKG - GMP

HKGGMP

Hong Kong Intl

Tue 12-5

18:50-11:00

1 stop15h 10m

Seoul Gimpo Intl

Fri 15-5

20:50-11:50

1 stop16h 00m

HK$3,415

Hong KongSeoul

HKG - GMP

HKGGMP

Hong Kong Intl

Fri 8-5

09:45-19:50

1 stop9h 05m

Seoul Gimpo Intl

Wed 13-5

12:00-21:05

1 stop10h 05m

HK$3,423

Hong KongIncheon

HKG - ICN

HKGICN

Hong Kong Intl

Wed 10-6

17:05-13:15

2 stops19h 10m

Incheon Intl

Sun 14-6

07:45-17:10

2 stops10h 25m

HK$3,431

Flights are sorted by cheapest return flights first.

Deals found on 9-4

Showing 1-10 of 46 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

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 10 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 11 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 Monday (46 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 Korean Air.

HK Express
HK Express
From HK$1,028
Cathay Pacific
Cathay Pacific
From HK$2,129
Korean Air
Korean Air
From HK$2,141
T'way Air
T'way Air
From HK$906

What are the cheapest airlines that fly to Seoul?

The cheapest airlines flying from Hong Kong to Seoul are Eastar Jet, 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 15 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
1,204 reviews
Check prices

Crew

8.7

Entertainment

8.2

Boarding

8.5

Food

8.1

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
1,204 reviews
Korean Air
8.4
Very Good
1,204 reviews
Check prices

Crew

8.7

Entertainment

8.2

Boarding

8.5

Food

8.1

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
8.1
Very Good
516 reviews
Korean Air
8.4
Very Good
1,204 reviews
Check prices

Crew

8.7

Entertainment

8.2

Boarding

8.5

Food

8.1

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
1,275 reviews
Korean Air
8.4
Very Good
1,204 reviews
Check prices

Crew

8.7

Entertainment

8.2

Boarding

8.5

Food

8.1

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
7.3
Good
44 reviews
Korean Air
8.4
Very Good
1,204 reviews
Check prices

Crew

8.7

Entertainment

8.2

Boarding

8.5

Food

8.1

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, Eastar Jet 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$925, however they can be found for as little as HK$661.

  • 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

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