Expect strict security at Heathrow. Ensure all liquids are in one bag to avoid delays during manual screenings.

Most accurate provider | Mytrip 3 stars |
|---|---|
Most trusted provider | Mytrip 3 stars |
Round-trip from | $600 (Air China) |
One-way from | $401 (Kiwi.com) |
Popular in | December |
Cheapest in | May |
Average price | $771 |
Good round-trip deal | $665 or less |
Good one-way deal | $390 or less |
Fly from
Fly to
Route
Depart
Return
Price
LondonBangkok
LGW - BKK
LGWBKK
London Gatwick
Tue 11/25
5:00 pm-2:35 am
1 stop26h 35m
Bangkok Suvarnabhumi
Wed 12/10
3:20 am-7:30 pm
1 stop23h 10m
LondonBangkok
LHR - BKK
LHRBKK
London Heathrow
Fri 11/21
1:55 pm-11:20 pm
1 stop26h 25m
Bangkok Suvarnabhumi
Sun 11/30
2:55 am-6:10 pm
1 stop22h 15m
LondonBangkok
LHR - BKK
LHRBKK
London Heathrow
Mon 12/1
10:00 am-1:40 pm
1 stop20h 40m
Bangkok Suvarnabhumi
Wed 4/29
1:50 am-12:40 pm
1 stop16h 50m
LondonBangkok
LGW - BKK
LGWBKK
London Gatwick
Wed 11/12
4:00 pm-10:25 am
Nonstop11h 25m
Bangkok Suvarnabhumi
Wed 11/26
12:30 pm-6:30 pm
Nonstop13h 00m
LondonBangkok
LGW - BKK
LGWBKK
London Gatwick
Tue 3/17
10:30 am-10:35 pm
2 stops29h 05m
Bangkok Suvarnabhumi
Thu 3/19
9:25 am-2:00 pm
1 stop35h 35m
LondonBangkok
LGW - BKK
LGWBKK
London Gatwick
Tue 3/17
4:00 pm-10:25 am
Nonstop11h 25m
Bangkok Suvarnabhumi
Thu 3/19
12:25 pm-6:20 pm
Nonstop12h 55m
LondonBangkok
LHR - BKK
LHRBKK
London Heathrow
Sat 11/15
1:55 pm-11:30 pm
2 stops26h 35m
Bangkok Suvarnabhumi
Wed 1/14
9:25 am-6:10 pm
1 stop15h 45m
LondonBangkok
LHR - BKK
LHRBKK
London Heathrow
Mon 12/29
1:55 pm-11:45 am
1 stop14h 50m
Bangkok Suvarnabhumi
Sat 1/10
2:55 am-12:05 pm
1 stop16h 10m
LondonBangkok
LHR - BKK
LHRBKK
London Heathrow
Wed 11/12
7:20 pm-11:30 pm
2 stops21h 10m
Bangkok Suvarnabhumi
Thu 3/12
2:40 pm-6:40 am
1 stop23h 00m
LondonBangkok
LGW - BKK
LGWBKK
London Gatwick
Tue 3/17
4:00 pm-10:25 am
Nonstop11h 25m
Bangkok Suvarnabhumi
Thu 3/19
12:25 pm-6:20 pm
Nonstop12h 55m
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*1 star | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*1 star |
To ensure you get the cheapest price possible for a flight from London to Bangkok Suvarnabhumi Airport, you should look to book at least 62 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
Currently, December is the cheapest month in which you can book a flight from London to Bangkok Suvarnabhumi Airport (average of $481). Flying from London to Bangkok Suvarnabhumi Airport in July is currently the most expensive (average of $726). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
One of the essential ways to save on airfare from London to Bangkok Suvarnabhumi Airport is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the afternoon could potentially save you up to 17% on airfare.
Travelers seeking maximum savings on their London to Bangkok Suvarnabhumi Airport flight should consider departing on Sunday afternoons when fares are most often at their lowest. Saturday evenings flights should be avoided if possible as fares are typically the most expensive at this time.
The most flights from LON to BKK are scheduled on a Tuesday (10 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (8 on average).
Dubai (DXB) – chosen by Cheapflights users on 20% of 1-stop itineraries from London to Bangkok Suvarnabhumi Airport on Cheapflights.
Beijing (PEK) is the most affordable 1-stop option, with an average round-trip price of $601.
Flights via Vienna (VIE) have the shortest average one-way travel time for 1-stop routes: 13h 15m.
Flights via Vienna (VIE) offer the fastest connection on this route, with an average layover time of 0h 58m.
Overall
Comfort
Entertainment
Food
Boarding
Crew
Reviews
Anonymous,Oct 2025
TPE - YYZ
Overall
Comfort
Entertainment
Food
Boarding
Crew
Reviews
Anonymous,Oct 2025
TPE - YYZ
Overall
Comfort
Entertainment
Food
Boarding
Crew
Reviews
Anonymous,Oct 2025
TPE - YYZ
Overall
Comfort
Entertainment
Food
Boarding
Crew
Reviews
Anonymous,Oct 2025
TPE - YYZ
Overall
Comfort
Entertainment
Food
Boarding
Crew
Reviews
Anonymous,Oct 2025
TPE - YYZ
Overall
Comfort
Entertainment
Food
Boarding
Crew
Reviews
Anonymous,Oct 2025
TPE - YYZ
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$407 | Average$805 | FlexibilityNo cancel fee | On-time86% | |
| Cheapest$496 | Average$584 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$533 | Average$700 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$539 | Average$651 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$544 | Average$579 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$560 | Average$659 | FlexibilityNo cancel fee | On-time61% | |
| Cheapest$577 | Average$648 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$600 | Average$814 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$621 | Average$672 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$641 | Average$925 | FlexibilityNo cancel fee | On-time78% |