Skyline view of Bangkok highlighting traditional Thai architecture amidst modern buildings. — flights from London to Bangkok
London, UKBangkok, Thailand

Flights from London to Bangkok

Nonstop flights from London (LHR) to Bangkok (BKK) take about 12h 28m (9,578 km). THAI Airways flies it. Lowest fare seen: $640 one-way, nonstop (12 Oct 2026).

All flights from London →All flights to Bangkok →

Photo of Bangkok: Zaonar Saizainalin on Pexels.

When you land in Bangkok

The airport transfer and the few things worth sorting before you fly.

Find hotels in Bangkok

Hotels, hostels & more · Trip.com

Search hotels

Airlines flying London to Bangkok

Carriers on LHR–BKK according to our route data and nonstop fares seen as of 12 Oct 2026. Not a complete list.

✈ THAI Airwaysnonstop fare seen

London to Bangkok fares by month

Cheapest month seen for a nonstop flight: Apr 2027, from $393 one-way. With stops: Nov 2026, from $318. Lowest one-way fares seen for departures in each month, read 15 Oct 2026.

DepartingNonstop fromCheaper with stops
Oct 2026$67519 Oct 2026 · THAI Airways$342 · 2 stops30 Oct 2026
Nov 2026$5761 Nov 2026$318 · 2 stops6 Nov 2026
Dec 2026$5496 Dec 2026$337 · 2 stops2 Dec 2026
Jan 2027$56617 Jan 2027$356 · 2 stops5 Jan 2027
Feb 2027$47619 Feb 2027$389 · 1 stop19 Feb 2027
Mar 2027$73413 Mar 2027 · THAI Airways$419 · 1 stop13 Mar 2027
Apr 2027$39311 Apr 2027$341 · 1 stop2 Apr 2027
May 2027$6444 May 2027 · THAI Airways$394 · 2 stops4 May 2027
Aug 2027$75024 Aug 2027$441 · 1 stop24 Aug 2027
Sept 2027$74912 Sept 2027$434 · 1 stop21 Sept 2027

From Travelpayouts flight-search data, city to city (London to Bangkok, any airport), USD, read 15 Oct 2026. These are fares that were on sale, not a guarantee of today's price; an airline is named only where we know it flies this route.

Best time to fly to Bangkok

Based on weather and travel conditions in Thailand

Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Best monthsGoodAvoid if possible

The cool, dry season (November–February) is ideal — sunny skies, low humidity, and comfortable temperatures around 25–30°C. The monsoon (May–October) brings heavy rain especially in the south.

Peak season: November – February

More for this trip

Frequently asked questions — London to Bangkok flights

How long is the flight from London to Bangkok?
A nonstop flight from London (LHR) to Bangkok (BKK) takes about 12h 28m, covering 9,578 km. That is an estimate from the distance — actual time varies with the airline, aircraft and winds, and connecting itineraries take longer.
How far is London from Bangkok by air?
The great-circle distance between London Heathrow Airport and Suvarnabhumi Airport is 9,578 km (5,951 miles), a ultra long-haul route.
Which airlines fly from London to Bangkok?
Airlines with flights or nonstop fares on the LHR–BKK route include THAI Airways. This is not a complete list — schedules change by season, so check the current options before booking.
How much does a flight from London to Bangkok cost?
The lowest one-way fare seen recently on LHR–BKK was $640 USD with THAI Airways (nonstop), departing 1 Jun 2027, found in fare searches as of 12 Oct 2026. Fares change constantly and depend on the date, so check the current price before booking.
Do I need a visa to travel from UK to Thailand?
It depends on your passport. Some nationalities can enter Thailand visa-free or get a visa on arrival; others must apply in advance. Use AirConnect's Visa Checker to see the rules for your passport.
What is the best time to visit Bangkok?
The cool, dry season (November–February) is ideal — sunny skies, low humidity, and comfortable temperatures around 25–30°C. The monsoon (May–October) brings heavy rain especially in the south.

Sources: fares from Travelpayouts flight-search data, seen 12 Oct 2026; airlines from each carrier's published network and nonstop fares on sale; distance from OurAirports coordinates; flight time estimated from distance. Fares change daily.

Ready to book LHR–BKK?

Set a fare alert, check your visa, or search flights now.