Cheap Flights from Bangkok (BKK) to London (LHR)

Popular airlines from Suvarnabhumi Intl. Airport (BKK) to Heathrow Airport (LHR)

    notification illustration

    Be in the know

    Get alerts if flight prices drop or rise*
    deals illustration

    Book smarter

    Save on select hotels after you book a flight*
    trophy illustration

    Find the right fit

    We search billions of combinations of flights to help you find your next adventure

Frequently asked questions

How long does it take to fly from Bangkok Airport to LHR?
With Thai Airways International, a direct flight takes approximately 12 hours and 20 minutes. Step on board the 12:50PM flight from Bangkok Airport and reach Heathrow Airport at 7:10PM. Snap up a superb deal on this route when you use Expedia to book your journey.
Is it cheaper to buy a plane ticket from Suvarnabhumi Airport to Heathrow Airport (LHR) last minute?
When it comes to booking your flights, being prepared pays off. While you could pick up a last-minute deal on a Suvarnabhumi Airport to LHR flight, fares usually don't get cheaper as the date of departure nears. Based on flight pricing and demand studies in 2022, we have found that the sweet spot to book a domestic flight is between 28 – 35 days in advance. For international journeys it's between three and four months.
What airline has the least delays from Bangkok Airport to LHR?
Journey with Thai Airways International from Suvarnabhumi Airport to Heathrow Airport (LHR) and you're more likely to land at the time printed on your plane ticket. This airline clinches first place on this route, with an 70% on-time score. If you find yourself facing a delay, the Expedia App will keep you in the loop. Our popular app provides immediate trip updates, from flight delays to gate changes.
What airports do you fly into for London from Bangkok?
From Bangkok, you can travel to London via Heathrow Airport (LHR), London City Airport (LCY) and Gatwick Airport (LGW). Do some research into which airport works best for you before making your decision. If you opt for Heathrow Airport (LHR), it's around 23 kilometers west of downtown. Use the dollars you save when booking your fare with Expedia to explore the city's awesome attractions, such as Big Ben and Buckingham Palace.
What are the most popular departure times for flights from Suvarnabhumi Airport to Heathrow Airport?
Between 12:00 PM - 1:00 PM is when you'll find the most Thai Airways International flights making their way from BKK to Heathrow Airport (LHR). Our top tip? Get up and away earlier in the day. With air traffic yet to build up, your odds of catching a delay-free flight are higher.
Can I change the date of my flight from Suvarnabhumi Intl. Airport (BKK) to Heathrow Airport?
You can make changes to your Suvarnabhumi Airport to Heathrow Airport (LHR) ticket through the Expedia Trips portal. But before doing so, look over the fare conditions in your itinerary to see what the airline will allow you to do and if charges apply. Some airlines have a change fee per person, on top of any difference in fares. However, if you booked in the last 24 hours, you may be able to cancel for free and arrange new flights. You can also swing by our Customer Service portal for more useful advice and to chat with our Virtual Agent.

Travel information

Travel information

Origin airport
Suvarnabhumi Intl.
Destination airport
Heathrow
Distance
9520 km
Average flight time
6 hours 48 mins

Book with confidence

Book with confidence