Our cheapest offers for flights from Seoul Incheon to London Heathrow

Here you can compare cheap flights from Seoul Incheon (ICN) to London Heathrow (LHR) for one-way or return trips. The following offers were searched for and found on idealo during the last few days. Or start your own flight search to London Heathrow. Prices and availability may change at any time.

	Outbound	Return	Airlines	Price
Seoul Incheon London Heathrow	Outbound 31/01/26 1 Stopover (PKX, PEK) CA0132, CA0937 36h 00min	Return 03/02/26 1 Stopover (PEK, PKX) CA0856, CA0131 35h 05min	Air China	£384
Best option Seoul Incheon London Heathrow	Outbound 31/01/26 direct OZ0521 14h 40min	Return 03/02/26 direct OZ0522 12h 40min	Asiana Airlines	£636
Seoul Incheon London Heathrow	Outbound 31/01/26 1 Stopover (PKX, PEK) CA0132, CA0937 36h 00min	Return 03/02/26 1 Stopover (PEK, PKX) CA0856, CA0131 35h 05min	Air China	£391
Seoul Incheon London Heathrow	Outbound 31/01/26 1 Stopover (PEK) CA0710, CA0937 15h 40min	Return 03/02/26 1 Stopover (PEK) CA0938, CA0709 16h 30min	Air China	£393
Seoul Incheon London Heathrow	Outbound 20/03/26 1 Stopover (PKX) CZ0316, CZ0673 17h 30min	Return 17/04/26 1 Stopover (PKX) CZ0674, CZ0315 17h 10min	China Southern Airlines	£406
Seoul Incheon London Heathrow	Outbound 31/01/26 1 Stopover (PEK) CA0710, CA0937 15h 40min	Return 03/02/26 1 Stopover (PEK, PKX) CA0938, CA0131 32h 20min	Air China	£407
Seoul Incheon London Heathrow	Outbound 20/03/26 1 Stopover (PKX) CZ0316, CZ0673 17h 30min	Return 17/04/26 1 Stopover (PKX) CZ0674, CZ0315 17h 10min	China Southern Airlines	£445
Seoul Incheon London Heathrow	Outbound 20/03/26 1 Stopover (CAN) CZ0338, CZ0303 36h 45min	Return 17/04/26 2 Stopovers (PVG, TAO) MU0552, MU5521, MU2039 29h 40min	China Southern Airlines	£487
Seoul Incheon London Heathrow	Outbound 31/01/26 1 Stopover (WAW) LO0100, LO0281 29h 10min	Return 03/02/26 1 Stopover (WAW) LO0286, LO0097 15h 40min	Polskie Linie Lotnicze LOT	£494
Seoul Incheon London Heathrow	Outbound 20/03/26 1 Stopover (PKX) CZ0316, CZ0673 17h 30min	Return 17/04/26 1 Stopover (PKX) CZ0674, CZ0315 17h 10min	China Southern Airlines	£502

Tips and tricks to help you find cheap flights from Seoul Incheon to London Heathrow

Important flight information

Flight information: Seoul Incheon - London Heathrow

Outbound and return from	£383.99
Flight duration	min. 12:30
Return flight duration	min. 10:55/ max. 11:00
Distance	8871 km
Flights per week	24
Departure airport	Airport Seoul Incheon (ICN)
Departure country	Flights from South Korea
Arrival airport	Airport London Heathrow (LHR)
Destination country	Flights to United Kingdom

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