Cheap flights from London to Seoul from $624 LCY, LGW, LHR, LTN, SEN, STN → GMP, ICN
London City Airport (LCY), London Gatwick Airport (LGW), London Heathrow Airport (LHR), London Luton Airport (LTN), London Southend Airport (SEN), Stansted Airport (STN) → Gimpo International Airport (GMP), Incheon International Airport (ICN)
The cheapest return found recently is $624 with China Southern Airlines, 13 May 2027 – 20 May 2027, found 2 days ago.
- Cheapest return found recently
- $624, 13 May 2027 to 20 May 2027
- Usual return price
- $666 to $934
- Cheapest month to fly
- May 2027, return fares from $624 found in the last 7 days
- Airlines with nonstop flights
- Asiana Airlines, Korean Air, Virgin Atlantic
Return
The cheapest return fare on each of 16 departure dates is usually $666 to $934.
Cheapest return found recently
$624
13 May 2027 – 20 May 2027 · China Southern Airlines
London Gatwick Airport (LGW) → Incheon International Airport (ICN)
Leaves 11:10 a.m. · Return leaves 2:05 a.m. · 36 h 55 min of travel, both ways together
out 1 stop, back 1 stop · via Guangzhou Baiyun International Airport (CAN), Beijing Daxing International Airport (PKX)
found 2 days ago
Cheapest nonstop return
$889
26 Nov – 28 Nov · Asiana Airlines
London Heathrow Airport (LHR) → Incheon International Airport (ICN)
Leaves 5:40 p.m. · Return leaves 12:35 a.m. · 27 h 25 min of travel, both ways together
out nonstop, back nonstop
found 2 days ago
Every nonstop date from London to Seoul
Found recently, and the cheapest we hold
$624 13 May 2027 – 20 May 2027found 2 days agoSee prices for these dates
It is also the cheapest return we hold, of any age.
What have prices looked like?
Over 49 days, 24 Sept to 11 Nov, the cheapest return we saw each day was $560 to $756.
Those were the prices on those days, not today's.
Is this a good return price?
Compared with the cheapest return fare on each of 16 departure dates from 14 Nov to 13 Aug 2027, found by travelers' searches in the last 7 days (economy, the price the seller showed on Aviasales). The usual range is the middle half of those prices.
Could nearby dates be cheaper?
We hold no other 7-night return fares leaving within 3 days of 13 May 2027 to compare.
Every date we hold
380 fares on 16 departure dates
See the chart as a table
| Dates | From | Airline | Airports | Stops | Found | |
|---|---|---|---|---|---|---|
| 14 Nov – 20 Nov | $2,160 | easyJet | London Southend Airport (SEN) → Incheon International Airport (ICN) | out 2 stops, back 2 stops | found 3 days ago | See prices for these dates |
| 25 Nov – 7 Dec | $682 | Air China | London Gatwick Airport (LGW) → Incheon International Airport (ICN) | out 1 stop, back 1 stop | found 8 days ago | See prices for these dates |
| 26 Nov – 28 Nov | $715 | China Southern Airlines | London Gatwick Airport (LGW) → Incheon International Airport (ICN) | out 2 stops, back 1 stop | found 2 days ago | See prices for these dates |
| 27 Nov – 5 Dec | $632 | China Eastern | London Gatwick Airport (LGW) → Incheon International Airport (ICN) | out 1 stop, back 1 stop | found 7 days ago | See prices for these dates |
| 15 Dec – 5 Jan 2027 | $904 | easyJet | London Southend Airport (SEN) → Incheon International Airport (ICN) | out 2 stops, back 2 stops | found 7 days ago | See prices for these dates |
| 24 Dec – 15 Jan 2027 | $910 | China Southern Airlines | London Luton Airport (LTN) → Incheon International Airport (ICN) | out 3 stops, back 1 stop | found 8 days ago | See prices for these dates |
| 1 Jan 2027 – 7 Jan 2027 | $1,116 | easyJet | London Southend Airport (SEN) → Incheon International Airport (ICN) | out 2 stops, back 2 stops | found 5 days ago | See prices for these dates |
| 7 Jan 2027 – 15 Jan 2027 | $785 | Shenzhen Airlines | London Heathrow Airport (LHR) → Incheon International Airport (ICN) | out 1 stop, back 2 stops | found 4 days ago | See prices for these dates |
| 11 Jan 2027 – 24 Jan 2027 | $667 | Shenzhen Airlines | London Heathrow Airport (LHR) → Incheon International Airport (ICN) | out 1 stop, back 1 stop | found 5 days ago | See prices for these dates |
| 2 Feb 2027 – 11 Feb 2027 | $924 | Wizz Air UK | London Luton Airport (LTN) → Incheon International Airport (ICN) | out 3 stops, back 2 stops | found 3 days ago | See prices for these dates |
| 9 Feb 2027 – 19 Feb 2027 | $636 | Air China | London Heathrow Airport (LHR) → Incheon International Airport (ICN) | out 1 stop, back 1 stop | found 3 days ago | See prices for these dates |
| 3 Mar 2027 – 12 Mar 2027 | $662 | Shenzhen Airlines | London Heathrow Airport (LHR) → Incheon International Airport (ICN) | out 1 stop, back 1 stop | found 5 days ago | See prices for these dates |
| 6 Mar 2027 – 14 Mar 2027 | $1,321 | KLM | London City Airport (LCY) → Incheon International Airport (ICN) | out 1 stop, back 1 stop | found 4 days ago | See prices for these dates |
| 13 May 2027 – 20 May 2027 | $624 | China Southern Airlines | London Gatwick Airport (LGW) → Incheon International Airport (ICN) | out 1 stop, back 1 stop | found 2 days ago | See prices for these dates |
| 4 Jul 2027 – 14 Jul 2027 | $904 | Air India | London Heathrow Airport (LHR) → Incheon International Airport (ICN) | out 1 stop, back 1 stop | found 4 days ago | See prices for these dates |
| 13 Aug 2027 – 20 Aug 2027 | $964 | Air India | London Heathrow Airport (LHR) → Incheon International Airport (ICN) | out 1 stop, back 1 stop | found 3 days ago | See prices for these dates |
Which month looks cheapest?
May 2027 is the cheapest month — from $624.
Airlines on the cheapest dates: China Southern Airlines, Shenzhen Airlines, easyJet, Air China, Air India, China Eastern, easyJet, Wizz Air UK.
Premium cabin fares from London to Seoul
We hold no premium economy, business or first-class fares for this route: we collect them for the busiest routes, and this one is not among them yet.
Today's prices for 13 May 2027 – 20 May 2027 in another cabin: Premium economy · Business · First
How far ahead were prices cheapest for London to Seoul?
Return
Fares 90 to 179 days before departure were typically 32% lower than 0 to 6 days before departure.
From the cheapest return each day between 24 Sept and 11 Nov (49 days), grouped by how many days ahead the flight left; one adult in economy.
Each range covers different departure dates, so this compares typical fares, not the same trip priced twice.
Prices reflect recent searches — current fares may differ.
See these ranges as a table
| Booked ahead by | Typical fare | Cheapest day | Above the cheapest | Days of prices |
|---|---|---|---|---|
| 0–6 days | $920 | $574 | +46% | 10 |
| 7–13 days | $651 | $597 | +3% | 10 |
| 14–29 days | $666 | $632 | +6% | 35 |
| 30–59 days | $644 | $560 | +2% | 39 |
| 60–89 days | $647 | $640 | +3% | 30 |
| 90–179 days | $629 | $561 | Cheapest seen | 48 |
| 180+ days | $709 | $603 | +13% | 36 |
Live price for these dates
The cheapest return found recently is for 13 May 2027 – 20 May 2027. A live search on this page shows what those dates cost now, for one adult in economy.
Questions about this trip
How much is a return flight from London to Seoul?
The cheapest return found recently is $624 with China Southern Airlines, 13 May 2027 to 20 May 2027, found 2 days ago. The cheapest return fare on each of 16 departure dates is usually $666 to $934.
What is the cheapest month to fly from London to Seoul?
May 2027 is the cheapest month for a return, from $624, 13 May 2027 to 20 May 2027, found 2 days ago.
How far ahead should I book a flight from London to Seoul?
In 49 days of prices between 24 Sept and 11 Nov, return fares 90 to 179 days before departure were typically 32% lower than 0 to 6 days before departure.
Is there a direct flight from London to Seoul?
Yes, the cheapest nonstop return found recently is $889 with Asiana Airlines, 26 Nov to 28 Nov, found 2 days ago.
Which airlines have the cheapest flights from London to Seoul?
Between 14 Nov and 13 Aug 2027, China Southern Airlines has the cheapest return on 3 of the 16 departure dates we hold, Shenzhen Airlines on 3 and easyJet on 3.
Prices are what travelers' searches on Aviasales found in the last 7 days, in US dollars: the price the seller showed on Aviasales; bags may cost extra. Fares change, so check today's price before you book. How our prices work