Cheap Flights from London to Bangkok from US$351

Frequently Asked Questions

• What are the cheapest flights from London to Bangkok (LON-BKK)?

  Based on Trip.com data, Hainan Airlines offers one-way fares as low as US$351 on Cheapest nonstop routes (e.g. LHR to BKK on Wed, Nov 4), while Air China offers Cheapest nonstop round-trips from US$487 departing on Fri, Nov 27 and returning on Mon, Nov 30.

• Which airlines offer direct flights from London to Bangkok?

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

• How long is a flight from London to Bangkok?

  It takes about 11 hours 38 minutes to fly from London to Bangkok.

• When is the best time to book flights from London to Bangkok?

  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.

• How many flights are there per week from London to Bangkok?

  Based on Trip.com data in the past 4 weeks, there is 31 flight per week flying from London to Bangkok. You can check the weekly schedule for popular airlines on this route below: Thai Airways: S/M/T/W/T/F/S -- TG911 (12:48)

• How can I find the best deals on flights from London to Bangkok?

  To find best deals on flights from London to Bangkok, you can use various tools on Trip.com:
  · Be flexible with your travel dates to get the cheapest flight deal. Now the cheapest flight deal is on Wed, Nov 4, with one-way flights priced at just US$351.
  · Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is Norse Atlantic Airways.
  · Set up price alerts to easily monitor ticket prices without having to check every day.
  · Check Trip.com flight deals and promo codes frequently.
  · Avoid peak season unless you book very early. It seems the peak season for Bangkok travel is around July.
  · Get exclusive promo codes for Trip.com app users.

• When are flight tickets from London (LON) to Bangkok (BKK) the cheapest?

  The cheapest months to fly from London to Bangkok is October, when demand for travel is lower.

• Which upcoming date is cheapest to fly from London to Bangkok on?

  After crunching the numbers on our October flight calendar, it's currently cheapest to fly from London to Bangkok on October 27, 2026 with Air China, with prices starting at US$366.

• Which airports fly into Bangkok from London?

  You can land at any one of the following hubs in Bangkok: Suvarnabhumi Airport (BKK), and Don Mueang International Airport (DMK). Flying from Heathrow Airport to Suvarnabhumi Airport (LHR-BKK) is by far the most common option on this route.

• Is there any time difference between London and Bangkok?

  The time difference between Bangkok and London is 7h.

• How do I change or cancel my ticket from London to Bangkok?

  Tickets can only be changed or canceled 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.

• What is the average cost of a one-way flight from London to Bangkok?

  Based on Trip.com data for flights departing in the next 30 days, the average one-way fare from London to Bangkok is US$773. Fares vary by travel date, airline and availability.

• What is the average cost of a round-trip flight from London to Bangkok?

  Based on Trip.com data for travel in the next 30 days, the average round-trip fare from London to Bangkok is US$1,028. The final price depends on the outbound and return dates, airline and fare conditions.

• How do I book flights from London to Bangkok on Trip.com?

  Enter London and Bangkok, choose your travel dates and passengers, then compare flights by price, duration and baggage. Select a fare, review the change and cancellation rules, enter traveler details and complete payment to receive your confirmation.

• Are there budget airlines on the London to Bangkok route?

  Air Arabia, Norse Atlantic Airways and easyJetare the most popular budget airlines flying from London to Bangkok. Check baggage, seat and payment fees before comparing the final price.