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Leisure travellers must have a return or onward ticket before departure. A Schengen Visa may be required when transiting to Thailand through multiple airports in the Schengen Area.

Popular flights and flight offers from London to Bangkok

LHR – BKK
London - Bangkok
Sun 25 May 2025 – Wed 28 May 2025
From
£546
LHR – BKK
London - Bangkok
Mon 26 May 2025 – Fri 30 May 2025
From
£546
LHR – BKK
London - Bangkok
Fri 23 May 2025 – Wed 28 May 2025
From
£569
LHR – BKK
London - Bangkok
Sat 17 May 2025 – Wed 28 May 2025
From
£593
LHR – BKK
London - Bangkok
Sat 24 May 2025 – Wed 28 May 2025
From
£593
LHR – BKK
London - Bangkok
Wed 21 May 2025 – Mon 26 May 2025
From
£593

Flights from London to Bangkok

Finnair flies from London to Bangkok easily and at low prices. Finnair's fleet is one of the most modern in Europe, making the flight to Bangkok an enjoyable experience.

With Finnair, you fly to Bangkok on a fast route from Helsinki from the Helsinki Vantaa airport, where services and route connections are excellent. From Helsinki Vantaa, we fly directly to more than 15 major cities in Asia and more than 70 destinations in Europe. Go enjoy Bangkok with our blue and white wings and book your London to Bangkok flights today.

Our cheapest flights from London to Bangkok

LHR – BKK
London - Bangkok
Sun 25 May 2025 – Wed 28 May 2025
From
£546
Book now
LHR – BKK
London - Bangkok
Mon 26 May 2025 – Fri 30 May 2025
From
£546
Book now
LHR – BKK
London - Bangkok
Fri 23 May 2025 – Wed 28 May 2025
From
£569
Book now
LHR – BKK
London - Bangkok
Sat 17 May 2025 – Wed 28 May 2025
From
£593
Book now

Popular routes and flight deals