London to Seoul 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 $756 with Air India, 15 Feb 2027 – 21 Feb 2027, found yesterday. The cheapest one-way found recently is $564 with Wizz Air UK, 9 Sept 2027, found 5 days ago.
Return
The cheapest return fare on each of 5 departure dates is usually $753 to $1,208.
Cheapest return found recently
$756
15 Feb 2027 – 21 Feb 2027 · Air India
London Heathrow Airport (LHR) → Incheon International Airport (ICN)
Leaves 10:00 p.m. · Return leaves 12:05 p.m. · 67 h 45 min of travel, both ways together
out 1 stop, back 1 stop · via Indira Gandhi International Airport (DEL) · overnight connection · 20 h connection
found yesterday
Cheapest nonstop return
$879
15 Feb 2027 – 21 Feb 2027 · 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 yesterday
Found recently, and the cheapest we hold
$756 15 Feb 2027 – 21 Feb 2027found yesterdaySee prices for these dates
$647 1 Nov – 9 Novfound 6 days agoSee prices for these dates
What have prices looked like?
Over 25 days, 24 Sept to 18 Oct, the cheapest return we saw each day was $560 to $753.
At $756, the cheapest return found recently is above that range.
25 days is a short history, so treat this range as an early guide.
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 5 departure dates from 1 Nov to 5 Apr 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 6-night return fares leaving within 3 days of 15 Feb 2027 to compare.
Every date we hold
83 fares on 5 departure dates
See the chart as a table
| Dates | From | Airline | Airports | Stops | Found | |
|---|---|---|---|---|---|---|
| 1 Nov – 9 Nov | $647 | China Eastern | London Gatwick Airport (LGW) → Incheon International Airport (ICN) | out 1 stop, back 2 stops | found 6 days ago | See prices for these dates |
| 15 Nov – 23 Nov | $1,887 | KLM | London City Airport (LCY) → Incheon International Airport (ICN) | out 1 stop, back 2 stops | found 5 days ago | See prices for these dates |
| 9 Jan 2027 – 16 Jan 2027 | $1,208 | KLM | London City Airport (LCY) → Incheon International Airport (ICN) | out 1 stop, back 1 stop | found yesterday | See prices for these dates |
| 15 Feb 2027 – 22 Feb 2027 | $753 | Air India | London Heathrow Airport (LHR) → Incheon International Airport (ICN) | out 1 stop, back 1 stop | found 5 days ago | See prices for these dates |
| 5 Apr 2027 – 15 Apr 2027 | $819 | Air India | London Heathrow Airport (LHR) → Incheon International Airport (ICN) | out 1 stop, back 1 stop | found 5 days ago | See prices for these dates |
Which month looks cheapest?
November 2026 is the cheapest month — from $647.
Airlines on the cheapest dates: KLM, Air India, China Eastern.
One-way
Not enough comparable prices yet for a usual one-way price.
Cheapest one-way found recently
$564
9 Sept 2027 · Wizz Air UK
London Luton Airport (LTN) → Incheon International Airport (ICN)
Leaves 6:40 p.m. · 34 h 50 min trip
3 stops · via Palma de Mallorca Airport (PMI), Adolfo Suarez Madrid-Barajas Airport (MAD), Chengdu Tianfu (TFU) · separate tickets likely: collect your bags and check in again · overnight connection · connection may need a visa · 9 h connection
found 5 days ago
Cheapest nonstop one-way
$1,303
9 Sept 2027 · Virgin Atlantic
London Heathrow Airport (LHR) → Incheon International Airport (ICN)
Leaves 1:05 p.m. · 12 h 40 min trip
nonstop
found 5 days ago
Found recently, and the cheapest we hold
$564 9 Sept 2027found 5 days agoOpen this trip
It is also the cheapest one-way we hold, of any age.
What have prices looked like?
Over 10 days, 24 Sept to 17 Oct, the cheapest one-way we saw each day was $481 to $564.
At $564, the cheapest one-way found recently is at the high end of that range.
10 days is a short history, so treat this range as an early guide.
Those were the prices on those days, not today's.
Is this a good one-way price?
Not enough comparable prices yet: we hold one-way fares on 1 departure date and need at least 3 to say what is usual.
Could nearby dates be cheaper?
We hold no other one-way fares leaving within 3 days of 9 Sept 2027 to compare.
Every date we hold
17 fares on 1 departure dates
See every date as a table
| Dates | From | Airline | Airports | Stops | Found | |
|---|---|---|---|---|---|---|
| 9 Sept 2027 | $564 | Wizz Air UK | London Luton Airport (LTN) → Incheon International Airport (ICN) | 3 stops | found 5 days ago | Open this trip |
Airlines on the cheapest dates: 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 15 Feb 2027 – 21 Feb 2027 in another cabin: Premium economy · Business · First
Today's prices for 9 Sept 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 13% lower than 0 to 6 days before departure.
From the cheapest return each day between 24 Sept and 18 Oct (25 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 | $717 | $574 | +15% | 7 |
| 14–29 days | $647 | $644 | +4% | 20 |
| 30–59 days | $644 | $560 | +3% | 17 |
| 90–179 days | $625 | $561 | Cheapest seen | 24 |
| 180+ days | $731 | $709 | +17% | 25 |
One-way
Not enough history yet: in 10 days of one-way prices, 24 Sept to 17 Oct, fewer than 3 booking ranges had prices on 7 days or more.
Live price for these dates
The cheapest return found recently is for 15 Feb 2027 – 21 Feb 2027. A live search on this page shows what those dates cost now, for one adult in economy.
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