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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 26-1. Fares are subject to change and may not be available on all flights or dates of travel.
— SEL
25 Jan — 1 Feb1
1 adult
1 adult, Economy, 0 bags

Flights to Seoul in 2025

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 26 December 2025.

Wed 31-1221:05HKG - ICN
Nonstop3h 30mHK Express
Wed 7-102:20ICN - HKG
Nonstop4h 10mHK Express
Deal found 24-12HK$1,516
Tue 30-1207:10HKG - ICN
Nonstop3h 30mHK Express
Tue 6-102:20ICN - HKG
Nonstop4h 10mHK Express
Deal found 26-12HK$1,648
Wed 31-1221:05HKG - ICN
Nonstop3h 30mHK Express
Tue 6-102:20ICN - HKG
Nonstop4h 10mHK Express
Deal found 26-12HK$1,671
Sun 28-1213:30HKG - ICN
1 stop23h 05mAir China
Sat 10-112:45ICN - HKG
1 stop24h 30mAir China
Deal found 24-12HK$1,710
Wed 31-1221:05HKG - ICN
Nonstop3h 30mHK Express
Mon 5-102:20ICN - HKG
Nonstop4h 10mHK Express
Deal found 24-12HK$1,733
Mon 29-1200:55HKG - ICN
Nonstop3h 35mHK Express
Mon 5-102:20ICN - HKG
Nonstop4h 10mHK Express
Deal found 24-12HK$1,788
Wed 31-1221:05HKG - ICN
Nonstop3h 30mMultiple Airlines
Thu 8-121:10ICN - HKG
1 stop20h 15mMultiple Airlines
Deal found 24-12HK$1,795
Wed 31-1221:05HKG - ICN
Nonstop3h 30mMultiple Airlines
Tue 6-122:05ICN - HKG
1 stop15h 40mMultiple Airlines
Deal found 26-12HK$1,803
Mon 29-1202:45HKG - GMP
1 stop5h 20mMultiple Airlines
Wed 7-120:30GMP - HKG
1 stop14h 55mMultiple Airlines
Deal found 24-12HK$1,920
Mon 29-1202:45HKG - GMP
1 stop5h 20mMultiple Airlines
Tue 6-119:55GMP - HKG
1 stop15h 30mMultiple Airlines
Deal found 24-12HK$1,927
Mon 29-1215:25HKG - GMP
1 stop18h 35mChina Eastern
Tue 6-120:50GMP - HKG
1 stop16h 15mChina Eastern
Deal found 26-12HK$2,013
Tue 30-1202:45HKG - GMP
1 stop5h 20mMultiple Airlines
Wed 7-120:30GMP - HKG
1 stop14h 55mMultiple Airlines
Deal found 24-12HK$2,145

Find flight deals to Seoul

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 26 December 2025.

Return from

HK$1,430

One-way from

HK$746

Popular in

December

Cheapest in

September

Average price

HK$2,503

Good round-trip deal

HK$1,612 or less

Good one-way deal

HK$1,006 or less
HK Express
  • HK Express
  • 24-1-31-1
  • Nonstop
  • 7h 45m total
  • Hong Kong to Seoul
Search Deals
HK Express
  • HK Express
  • 17-1
  • Nonstop
  • 3h 30m total
  • Hong Kong to Seoul
Search Deals
Highest demand for flights based on searches. 8% potential increase in price (HK$148 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (HK$74 potential savings vs. average return price).
Search Deals
Average for return flights in December 2025
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 26 December 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

Mon 2-3

17:40-13:05

1 stop18h 25m

Seoul Gimpo Intl

Sat 7-3

14:25-21:50

1 stop8h 25m

HK$1,679

Hong KongSeoul

HKG - GMP

HKGGMP

Hong Kong Intl

Sat 14-3

17:40-13:05

1 stop18h 25m

Seoul Gimpo Intl

Fri 20-3

14:25-20:50

1 stop7h 25m

HK$1,687

Hong KongSeoul

HKG - GMP

HKGGMP

Hong Kong Intl

Thu 12-3

17:40-13:05

1 stop18h 25m

Seoul Gimpo Intl

Mon 16-3

14:25-20:50

1 stop7h 25m

HK$1,687

Hong KongSeoul

HKG - GMP

HKGGMP

Hong Kong Intl

Tue 3-3

17:40-13:05

1 stop18h 25m

Seoul Gimpo Intl

Fri 6-3

14:25-20:50

1 stop7h 25m

HK$1,687

Hong KongSeoul

HKG - GMP

HKGGMP

Hong Kong Intl

Thu 22-1

15:20-08:25

1 stop16h 05m

Seoul Gimpo Intl

Wed 28-1

18:40-10:25

1 stop16h 45m

HK$1,710

Hong KongSeoul

HKG - GMP

HKGGMP

Hong Kong Intl

Tue 27-1

02:45-09:40

1 stop5h 55m

Seoul Gimpo Intl

Mon 2-2

19:30-10:25

1 stop15h 55m

HK$1,725

Hong KongSeoul

HKG - GMP

HKGGMP

Hong Kong Intl

Sat 28-2

17:40-13:05

1 stop18h 25m

Seoul Gimpo Intl

Sun 8-3

14:25-20:50

1 stop7h 25m

HK$1,725

Hong KongSeoul

HKG - GMP

HKGGMP

Hong Kong Intl

Sun 8-3

17:40-13:05

1 stop18h 25m

Seoul Gimpo Intl

Sun 15-3

14:25-21:50

1 stop8h 25m

HK$1,749

Hong KongSeoul

HKG - GMP

HKGGMP

Hong Kong Intl

Fri 23-1

14:45-21:25

1 stop5h 40m

Seoul Gimpo Intl

Tue 27-1

16:50-22:35

1 stop6h 45m

HK$1,811

Hong KongSeoul

HKG - GMP

HKGGMP

Hong Kong Intl

Sun 25-1

02:45-10:00

1 stop6h 15m

Seoul Gimpo Intl

Tue 3-2

18:45-10:25

1 stop16h 40m

HK$1,834

Flights are sorted by cheapest return flights first.

Deals found on 25-12

Showing 1-10 of 44 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 19 December 2025.

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 32 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 Thursday (43 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (33 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$960
Hong Kong Airlines
Hong Kong Airlines
From HK$1,083
Cathay Pacific
Cathay Pacific
From HK$2,001
Korean Air
Korean Air
From HK$1,668

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 AIR PREMIA.

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 26 December 2025.
Read through reviews of airlines serving South Korea, such as Korean Air, Cathay Pacific, andHK Express. 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
1,185 reviews
Check prices

Overall

8.4

Boarding

8.5

Food

8.1

Comfort

8.3

Crew

8.7

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
1,185 reviews
Korean Air
8.4
Very Good
1,185 reviews
Check prices

Overall

8.4

Boarding

8.5

Food

8.1

Comfort

8.3

Crew

8.7

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
1,105 reviews
Korean Air
8.4
Very Good
1,185 reviews
Check prices

Overall

8.4

Boarding

8.5

Food

8.1

Comfort

8.3

Crew

8.7

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.
HK Express
7.2
Good
43 reviews
Korean Air
8.4
Very Good
1,185 reviews
Check prices

Overall

8.4

Boarding

8.5

Food

8.1

Comfort

8.3

Crew

8.7

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$81, while return flights cost around HK$742.

  • How much is a return flight to Seoul?

    A return flight to Seoul will typically cost around HK$890, however they can be found for as little as HK$742.

  • 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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