Thai Airways Flights from London to Bangkok

At the moment, you can catch a direct flight from London to Bangkok with the following airlines, including: Thai Airways EVA Air British Airways Norse Atlantic Airways Scandinavian Airlines Selected airlines are based on historical data collected from flight bookings users made on Trip.com within the last 90 days.

A flight from London (LON) to Bangkok (BKK) takes an average of 11 hours 38 minutes.

By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from London to Bangkok is around 40 days (6 weeks) in advance, and the best time to fly is usually on Tuesday, Wednesday, and Saturday. Tuesday typically offers the cheapest flights for departure, while Saturday offers the best return deals.

On average, 31 direct flights operate each week between London and Bangkok. See below the schedules of the main airlines serving this route:
Thai Airways: S/M/T/W/T/F/S – TG911 (departure at 12:55)

The cheapest month to book a flight from London to Bangkok is usually October, when demand is lower.

After crunching the numbers on our September flight calendar, it's currently cheapest to fly from London to Bangkok on September 21, 2026 with Air China, with prices starting at £358.

Flights to Bangkok can arrive at: Suvarnabhumi Airport (BKK)Don Mueang International Airport (DMK). The most common route connects Heathrow Airport and Suvarnabhumi Airport (LHR–BKK).

The time difference between Bangkok and London is 7h.

Tickets can only be changed or cancelled if permitted by airline policy. To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy. However, if the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.