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Search round tripsInternational route LHR to BKK
Cheap flights from London to Bangkok
Various airlines fly nonstop from London to Bangkok. The 9,577 km flight takes about 12 hours 30 minutes.
Fares
Fares are pulled from the airlines and our partners when you search. Search your dates
Nonstop, several airlinesEconomy
LHR
London
BKK
Bangkok
- Distance
- 9,577 km
Return
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Looking for London to Bangkok air tickets and not sure what to pay? Four airlines fly this route, and fares change with demand, so the same seat can cost noticeably more close to a holiday weekend. Put your dates in the search above to compare today's fares and book with bookingMentor.
Everything you should know
London to Bangkok flight guide
Flying from London to Bangkok
In short
British Airways, Thai Airways International, EVA Air and Norse Atlantic Airways fly nonstop from London to Suvarnabhumi Airport (BKK) in Bangkok, using Heathrow (LHR) and London Gatwick (LGW). The 9,577 km flight takes about 12 hours 30 minutes. It is one of the classic long-haul holiday routes from Britain, and Bangkok is also the first stop for many travellers heading on around Asia.
British Airways, Thai, EVA Air and seasonal Norse
British Airways, Thai Airways and EVA Air include bags, meals and entertainment. Norse Atlantic Airways sells the seat on its own and charges for those extras, and it flies the route seasonally. Check which London airport your ticket uses before booking the journey there.
Heathrow Express, Elizabeth line and Gatwick trains
For Heathrow, the Heathrow Express runs from Paddington to Heathrow Central (Terminals 2 and 3) in about 15 minutes, every 15 minutes, with Terminal 5 a few minutes further. The Elizabeth line takes about 27 minutes from Paddington and is cheaper; from Terminal 4, a free shuttle train links to Heathrow Central. Gatwick, south of London, has the Gatwick Express and Thameslink trains.
TDAC and the 30-day exemption for British passports
Every foreign traveller completes the Thailand Digital Arrival Card (TDAC) before landing. It is free on tdac.immigration.go.th, opens three days before arrival and has applied since 1 May 2025.
British passport holders are on Thailand's new 30-day visa-exemption list, which replaced the 60-day scheme on 15 September 2026. That shortens the visa-free stay many UK travellers were used to, so anyone planning a longer trip should look at the Thai e-Visa options on our Thailand visa page.
From the SAT-1 gate to immigration
Long-haul aircraft often park at SAT-1, the satellite concourse. An automated train runs through a tunnel of about one kilometre to the main terminal in about three minutes, then it is a walk to immigration.
Suvarnabhumi lies about 25 km east of central Bangkok. The Airport Rail Link runs to Phaya Thai in about 27 minutes and meets the BTS Skytrain; Makkasan links to the MRT Blue Line. Metered taxis and Grab wait outside arrivals. Bus 389 to Pattaya leaves Exit 8 on the first floor between 10:00 and 18:00 for 130 baht, and minibus 555 runs to Don Mueang for domestic low-cost flights.
ETA for non-British passports on the return
Travellers returning to the UK on a non-British passport may need an Electronic Travel Authorisation, which applies to visitors from 85 visa-free nationalities; GOV.UK lists the fee as £20.
Dhaka flights from Bangkok and London
The Dhaka flights on Biman, US-Bangla and Thai Airways leave from Suvarnabhumi (see Bangkok to Dhaka flights). London also has its own nonstop flights to Bangladesh: see London to Dhaka flights.
Fact-checked by the bookingMentor Travel Desk
Reviewed · Updated when rules or prices change
Checked against trusted sources:
HeathrowGOV.UKRoyal Thai Embassy
London to Bangkok flights at a glance
Several airlines fly nonstop from London (LHR) to Bangkok (BKK). The 9,577 km flight takes about 12 hours 30 minutes.
| Flight time | 12h 30m nonstop |
|---|---|
| Distance | 9,577 km |
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Flights and fares for your dates
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Trending flights
More flight routes on bookingMentor, grouped by departure country.
Flights from Bangladesh6 routes
FromTo DAC CXB DhakaCox's Bazar FromTo DAC ZYL DhakaSylhet FromTo DAC CGP DhakaChattogram FromTo DAC RJH DhakaRajshahi Available airlines2 airlines- US-Bangla Airlines
- Biman Bangladesh Airlines
FromTo ZYL DAC SylhetDhaka FromTo CGP DAC ChattogramDhaka
Flights from United Arab Emirates4 routes
FromTo DXB DAC DubaiDhaka FromTo AUH CGP Abu DhabiChattogram FromTo AUH DAC Abu DhabiDhaka FromTo AUH ZYL Abu DhabiSylhet Available airlines1 airline- Biman Bangladesh Airlines
Flights from India2 routes
FromTo CCU DAC KolkataDhaka FromTo BOM DAC MumbaiDhaka Available airlines2 airlines- Air India
- IndiGo
Flights from Japan1 route
FromTo NRT DAC TokyoDhaka Available airlines1 airline- Biman Bangladesh Airlines
Flights from Ethiopia1 route
FromTo ADD DAC Addis AbabaDhaka Available airlines1 airline- Ethiopian Airlines
Flights from Bahrain1 route
FromTo BAH DAC ManamaDhaka Available airlines1 airline- Gulf Air
Flights from Thailand1 route
Flights from Egypt0 routes
Flights from China1 route
Flights from Sri Lanka1 route
FromTo CMB DAC ColomboDhaka Available airlines2 airlines- FitsAir
- SriLankan Airlines
Airlines flying London to Bangkok
A number of airlines fly this route nonstop.
Norse Atlantic Airways flies the route seasonally.
Departure and arrival airports
LHR London Heathrow Airport
- Codes
- IATA LGW, LHR
- City
- London, United Kingdom
- Getting into town
- Heathrow is west of London, linked to the centre by the Elizabeth line, the Heathrow Express and the Piccadilly line. Gatwick, south of the city, has the Gatwick Express and Thameslink trains.
- Time zone
- GMT, BST (UTC+1) in summer
BKK Suvarnabhumi Airport
- Codes
- IATA BKK
- City
- Bangkok, Thailand
- Terminal
- One main terminal building with the SAT-1 satellite concourse, reached by an underground automated train.
- Time zone
- UTC+7, no daylight saving
- Getting into town
- Suvarnabhumi lies about 25 km east of central Bangkok. The Airport Rail Link runs to Phaya Thai in about 27 minutes and meets the BTS Skytrain there; Makkasan station connects to the MRT Blue Line. Metered taxis and Grab wait outside arrivals.
How to book London to Bangkok for less
Practical points for booking this route.
Low-costbags are extra
Add bags when you book
Norse Atlantic Airways charge for checked baggage. It is cheaper added online at booking than at the airport.
4airlines on the route
Compare the total, not the headline fare
Put your dates into the search above and compare the price with baggage, seats and meals included, not just the base fare.
e-Visafor Bangladeshi passports
Apply for the Thai e-Visa early
Apply for the Thai e-Visa online well before you fly and fill in the Thailand Digital Arrival Card in the 72 hours before landing; airlines check both at check-in.
Where to stay in Bangkok
Hotels and resorts in Bangkok with guest scores, nightly prices and free cancellation.
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Frequently Asked Questions (FAQs)
Getting there
British Airways, Norse Atlantic Airways, EVA Air and Thai Airways International fly the route nonstop. Norse Atlantic Airways flies the route seasonally. Schedules change by season, so check the flights for your dates in the search above.
About 12 hours 30 minutes in the air. The two airports are 9,577 km apart in a straight line; actual times vary a little by airline, aircraft and wind.
Suvarnabhumi (BKK). No airline flies this route from Don Mueang. One main terminal building with the SAT-1 satellite concourse, reached by an underground automated train.
Suvarnabhumi lies about 25 km east of central Bangkok. The Airport Rail Link runs to Phaya Thai in about 27 minutes and meets the BTS Skytrain there; Makkasan station connects to the MRT Blue Line. Metered taxis and Grab wait outside arrivals.
Yes. Biman, US-Bangla and Thai Airways fly Bangkok to Dhaka from Suvarnabhumi. On separate tickets you clear Thai immigration and collect your bag, so you need a Thai visa. See Bangkok to Dhaka flights.
Both. Thai Airways and EVA Air fly to Heathrow; British Airways and seasonal Norse Atlantic Airways flights use Gatwick. Check the airport on your ticket.
Norse Atlantic Airways flies the route seasonally. Airlines publish these changes in advance, but dates can move, so check the schedule before you book.
General
UK time is seven hours behind Thailand in winter and six hours behind during British Summer Time (late March to late October); Thailand does not change its clocks.
Yes; see London to Dhaka flights. Going via Bangkok is worth it if you want a few days in Thailand on the way home.
The Elizabeth line and the Heathrow Express run into central London, and the Piccadilly line is the cheapest option.
What's included
It depends on the airline. Norse Atlantic Airways is a low-cost carrier whose basic fares include only a cabin bag, so add checked baggage when you book. The full-service airlines normally include a checked bag; the allowance is shown on your booking.
Visa & documents
British passport holders are on Thailand's 30-day visa-exemption list from 15 September 2026; other nationalities should check the Thai e-Visa portal. Every foreign arrival files the free Thailand Digital Arrival Card first.
Stay & facilities
On the full-service airlines, request a Muslim (halal) meal when you book or at least 24 hours before departure through the airline's manage-booking page. On Norse Atlantic Airways, meals are bought online or on board; check the menu for halal options.
