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£405+ Direct flights to Seoul

This is the cheapest price on a non-stop flight to Seoul found by a Cheapflights user in the last 72 hours by searching for a flight departing on 25/11. Fares are subject to change and may not be available on all flights or dates of travel.
— SEL
20 Dec — 27 Dec1
1 adult
1 adult, Economy, 0 bags

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 20 November 2025.

Mon 1/1220:10LHR - ICN
Nonstop12h 40mAsiana Airlines
Thu 11/1212:25ICN - LHR
Nonstop14h 40mAsiana Airlines
Deal found 18/11£660
Mon 8/1220:10LHR - ICN
Nonstop12h 40mAsiana Airlines
Tue 16/1212:25ICN - LHR
Nonstop14h 40mAsiana Airlines
Deal found 18/11£661
Mon 8/1220:10LHR - ICN
Nonstop12h 40mAsiana Airlines
Thu 11/1212:25ICN - LHR
Nonstop14h 40mAsiana Airlines
Deal found 20/11£664
Sat 6/1220:10LHR - ICN
Nonstop12h 40mAsiana Airlines
Mon 15/1212:25ICN - LHR
Nonstop14h 40mAsiana Airlines
Deal found 19/11£666
Thu 4/1220:10LHR - ICN
Nonstop12h 40mAsiana Airlines
Mon 15/1212:25ICN - LHR
Nonstop14h 40mAsiana Airlines
Deal found 19/11£668
Sun 7/1220:10LHR - ICN
Nonstop12h 40mAsiana Airlines
Mon 15/1212:25ICN - LHR
Nonstop14h 40mAsiana Airlines
Deal found 18/11£669
Mon 8/1220:10LHR - ICN
Nonstop12h 40mAsiana Airlines
Wed 17/1212:25ICN - LHR
Nonstop14h 40mAsiana Airlines
Deal found 18/11£673
Tue 2/1220:10LHR - ICN
Nonstop12h 40mAsiana Airlines
Tue 9/1212:25ICN - LHR
Nonstop14h 40mAsiana Airlines
Deal found 18/11£676
Wed 10/1220:10LHR - ICN
Nonstop12h 40mAsiana Airlines
Mon 15/1212:25ICN - LHR
Nonstop14h 40mAsiana Airlines
Deal found 18/11£682
Thu 4/1220:10LHR - ICN
Nonstop12h 40mAsiana Airlines
Thu 11/1212:25ICN - LHR
Nonstop14h 40mAsiana Airlines
Deal found 18/11£684
Sat 6/1220:10LHR - ICN
Nonstop12h 40mAsiana Airlines
Mon 8/1212:25ICN - LHR
Nonstop14h 40mAsiana Airlines
Deal found 17/11£684
Sun 30/1120:10LHR - ICN
Nonstop12h 40mAsiana Airlines
Thu 4/1212:25ICN - LHR
Nonstop14h 40mAsiana Airlines
Deal found 20/11£685

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 Fare Finder

 
Use the slider to find non-stop flights to Seoul within your budget. Price data is based on user searches made on Cheapflights. Over the past seven days, Cheapflights users made 858,174 searches and data was last updated on 20 November 2025.
Use the filters below to find and compare direct flights to Seoul that are best for you.

Fly from

London

Route

Depart

Return

Price

LondonIncheon

LHR - ICN

LHRICN

London Heathrow

Sat 7/3

20:10-17:50

Nonstop12h 40m

Incheon Intl

Wed 25/3

12:25-18:05

Nonstop14h 40m

£775

LondonIncheon

LHR - ICN

LHRICN

London Heathrow

Sun 30/11

20:10-17:50

Nonstop12h 40m

Incheon Intl

Mon 15/12

12:25-18:05

Nonstop14h 40m

£776

LondonIncheon

LHR - ICN

LHRICN

London Heathrow

Fri 5/12

20:10-17:50

Nonstop12h 40m

Incheon Intl

Tue 9/12

12:25-18:05

Nonstop14h 40m

£777

LondonIncheon

LHR - ICN

LHRICN

London Heathrow

Thu 19/3

20:10-17:50

Nonstop12h 40m

Incheon Intl

Tue 16/6

12:20-18:50

Nonstop14h 30m

£778

LondonIncheon

LHR - ICN

LHRICN

London Heathrow

Tue 10/3

20:10-17:50

Nonstop12h 40m

Incheon Intl

Mon 16/3

12:25-18:05

Nonstop14h 40m

£778

LondonIncheon

LHR - ICN

LHRICN

London Heathrow

Wed 11/3

20:10-17:50

Nonstop12h 40m

Incheon Intl

Mon 16/3

12:25-18:05

Nonstop14h 40m

£778

LondonIncheon

LHR - ICN

LHRICN

London Heathrow

Wed 4/2

20:10-17:50

Nonstop12h 40m

Incheon Intl

Sat 28/2

12:25-18:05

Nonstop14h 40m

£795

LondonIncheon

LHR - ICN

LHRICN

London Heathrow

Tue 24/3

20:10-17:50

Nonstop12h 40m

Incheon Intl

Tue 21/4

12:20-18:50

Nonstop14h 30m

£795

LondonIncheon

LHR - ICN

LHRICN

London Heathrow

Tue 24/3

20:10-17:50

Nonstop12h 40m

Incheon Intl

Wed 15/4

12:20-18:50

Nonstop14h 30m

£795

LondonIncheon

LHR - ICN

LHRICN

London Heathrow

Wed 4/2

20:10-17:50

Nonstop12h 40m

Incheon Intl

Fri 27/2

12:25-18:05

Nonstop14h 40m

£795

Flights are sorted by cheapest return flights first.

Deals found on 19/11

Showing 1-10 of 23 results
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Reviews of airlines flying non-stop to Seoul

Get insights into the airlines that provide direct flights 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 20 November 2025.
Read through reviews of airlines serving South Korea, such as Korean Air, Asiana Airlines, andChina Southern. 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
1,167 reviews
Check prices

Food

8.1

Boarding

8.5

Overall

8.4

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
1,167 reviews
Korean Air
8.4
Very Good
1,167 reviews
Check prices

Food

8.1

Boarding

8.5

Overall

8.4

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.
Asiana Airlines
8.2
Very Good
487 reviews
Korean Air
8.4
Very Good
1,167 reviews
Check prices

Food

8.1

Boarding

8.5

Overall

8.4

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.
China Southern
7.5
Good
119 reviews
Korean Air
8.4
Very Good
1,167 reviews
Check prices

Food

8.1

Boarding

8.5

Overall

8.4

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.
Air China
7.2
Good
126 reviews
Korean Air
8.4
Very Good
1,167 reviews
Check prices

Food

8.1

Boarding

8.5

Overall

8.4

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.
Lufthansa
6.8
Okay
7,579 reviews
Korean Air
8.4
Very Good
1,167 reviews
Check prices

Food

8.1

Boarding

8.5

Overall

8.4

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.

Temperature and rainfall in Seoul by month

Plan your trip to Seoul by taking into account the average temperature and rainfall totals by month.

SEL

Temperature

2 - 25 °C

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).

FAQ about direct flights to Seoul

Find answers to frequently asked questions about direct flights to Seoul to unlock the best deals on Cheapflights.

  • How much are direct flights to Seoul?

    On average, a one-way direct flight to Seoul will cost users approximately £733. If you're looking for a direct return flight to Seoul, you can expect to pay around £2,237.

  • Which airlines fly direct to Seoul?

    At the moment, Asiana Airlines, Lufthansa, Air China, Korean Air, China Southern, Etihad Airways, KLM, China Eastern, Turkish Airlines, Finnair offer direct flights to Seoul. Asiana Airlines is currently the most popular airline that flies direct to Seoul.

  • What is the best time of year to fly direct to Seoul?

    If you're seeking the lowest price on a direct flight to Seoul, January is worth consideration, as prices are usually at their lowest, on average. January may be most appealing to users looking for the quietest time to visit Seoul, when demand is typically at its lowest.

  • What is the most popular direct flight origin to Seoul?

    Currently, the most popular direct flight origin to Seoul is London Heathrow Airport. A return direct flight from London Heathrow Airport to Seoul typically costs around £1,861.

See more FAQs

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