Flights from Heathrow (LHR) to Suvarnabhumi Intl. (BKK) starting at $386

It's prudent to know about any quarantine requirements and travel advice reports in place in your destination city. Ensure you visit our Covid-19 Travel Advisor for up-to-date info on booking a flight to Bangkok Airport (BKK-Suvarnabhumi Intl.).

If you're eager to get stuck into your sightseeing adventures in Bangkok, try Thai Airways. This airline operates nonstop services from London Heathrow to Bangkok Airport (BKK-Suvarnabhumi Intl.).

For more info about changing your flight to Bangkok Airport, please visit our Customer Service Portal.

The travel time from London Airport (LHR-Heathrow) to Bangkok Airport (BKK-Suvarnabhumi Intl.) takes on average about 14 hours and 43 minutes. You'll have more than enough time to get some shut-eye on this long-haul flight, but don't forget to take a proper neck pillow if you really want to be comfortable.

Your plane will have covered 6,959 mi by the time you've left the tarmac at Heathrow Airport (LHR) and landed at Suvarnabhumi Airport. We recommend you bring lots of things to keep you occupied — it's going to be a long journey.

If you're on the lookout for an airline company that flies straight from LHR to BKK and is rated highly by seasoned travelers, look no further than Thai Airways. They offer 6 flights every month.

From the moment you enter the departure terminal to when you leave the arrivals terminal, if you're flying with Bangkok Airways, Thai AirAsia or Thai Airways you can be sure that COVID-19 measures and social distancing rules have been adhered to. Many airlines have introduced capped capacity flights and keeping the middle seat empty.

This just in! Airfares offered on Thursdays tend to be the cheapest, according to flight demand on Travelocity in 2020. Wednesday and Friday prices are also good, but you may want to prepare your budget if booking on a Sunday, as data shows the end of the week is when prices are generally at their highest.

Frequent travelers may already know this, but earlier in the week can be the cheapest time to fly. In 2020, flights departing on a Monday were generally the cheapest of the week, whereas you may pay a premium for weekend flights when demand is usually high. On average, tickets were most expensive for Saturday departures, so if you need to fly out on a weekend, you might look for deals ahead of time.

Trying to figure out how early you should book your flight? It's possible to start comparing international airfares on Travelocity up to 12 months in advance. However, it does depend on the carrier as not all airlines release their prices that far out. According to our 2020 flight demand trends, last minute planners can still bag a bargain with some of the cheapest fares appearing 2 weeks to 2 months prior to their travel dates.

We'll let you in on a secret...You can save big on flights if you mix and match your airlines and fare types. In fact, travelers who booked flights on Travelocity in 2020 saved nearly 40% when their return flights consisted of two different airlines or fare types.

*According to flight demand on Travelocity.com from January to December 2020. Savings are subject to change based on departure location, date and destination.