Navigating security at BKK can be a nightmare. Allow at least 90 minutes to clear security and immigration, especially during busy periods.

Most accurate provider | OneTravel 3 stars |
|---|---|
Most trusted provider | OneTravel 3 stars |
Round-trip from | $674 (Norse) |
One-way from | $237 (Norse) |
Popular in | January |
Cheapest in | November |
Average price | $910 |
Good round-trip deal | $212 or less |
Good one-way deal | $210 or less |
Fly from
Fly to
Route
Depart
Return
Price
BangkokLondon
BKK - LGW
BKKLGW
Bangkok Suvarnabhumi
mer. 12/3
12:30 pm-6:30 pm
Nonstop13h 00m
London Gatwick
dim. 12/7
4:10 pm-10:25 am
Nonstop11h 15m
BangkokLondon
BKK - LGW
BKKLGW
Bangkok Suvarnabhumi
mer. 3/11
12:30 pm-6:30 pm
Nonstop13h 00m
London Gatwick
dim. 3/15
4:10 pm-10:25 am
Nonstop11h 15m
BangkokLondon
BKK - LHR
BKKLHR
Bangkok Suvarnabhumi
dim. 2/15
2:55 am-12:05 pm
1 stop16h 10m
London Heathrow
lun. 2/23
1:55 pm-11:20 pm
1 stop26h 25m
BangkokLondon
BKK - LHR
BKKLHR
Bangkok Suvarnabhumi
ven. 12/12
3:00 pm-9:10 am
1 stop25h 10m
London Heathrow
mer. 12/31
7:30 am-1:15 pm
1 stop22h 45m
BangkokLondon
BKK - LHR
BKKLHR
Bangkok Suvarnabhumi
lun. 12/22
8:00 am-8:40 pm
1 stop19h 40m
London Heathrow
ven. 1/2
7:30 am-1:15 pm
1 stop22h 45m
BangkokLondon
BKK - LHR
BKKLHR
Bangkok Suvarnabhumi
mer. 1/14
8:00 am-8:40 pm
1 stop19h 40m
London Heathrow
mar. 1/20
7:30 am-6:05 am
1 stop15h 35m
BangkokLondon
BKK - LHR
BKKLHR
Bangkok Suvarnabhumi
mer. 12/3
1:15 am-12:15 pm
1 stop18h 00m
London Heathrow
ven. 2/13
10:00 am-1:40 pm
1 stop20h 40m
BangkokLondon
BKK - LHR
BKKLHR
Bangkok Suvarnabhumi
sam. 2/14
8:05 am-3:15 pm
1 stop38h 10m
London Heathrow
sam. 2/28
10:20 am-1:15 pm
1 stop19h 55m
BangkokLondon
BKK - LHR
BKKLHR
Bangkok Suvarnabhumi
mer. 4/1
2:55 am-3:15 pm
1 stop18h 20m
London Heathrow
jeu. 4/23
8:55 pm-11:55 pm
1 stop21h 00m
BangkokLondon
BKK - LHR
BKKLHR
Bangkok Suvarnabhumi
jeu. 12/11
3:15 am-7:10 pm
1 stop22h 55m
London Heathrow
mer. 12/31
9:10 pm-6:30 pm
1 stop38h 20m
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*1 star | |
| Price Accuracy1 star | Trust Score*1 star | |
| 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*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
The best time to book flights from Bangkok Suvarnabhumi Airport to London is 84 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
Currently, March is the cheapest month in which you can book a flight from Bangkok Suvarnabhumi Airport to London (average of $319). Flying from Bangkok Suvarnabhumi Airport to London in September is currently the most expensive (average of $779). 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.
It’s optimal to fly from Bangkok Suvarnabhumi Airport to London in the afternoon. By choosing this option you can save up to 38% on the cost of your flight, compared to a flight in the evening.
The most flights from BKK to LON are scheduled on a Monday (9 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (7 on average).
Helsinki (HEL) – chosen by Cheapflights users on 33% of 1-stop itineraries from Bangkok Suvarnabhumi Airport to London on Cheapflights.
Beijing (PEK) is the most affordable 1-stop option, with an average round-trip price of $741.
Flights via Dubai (DXB) have the shortest average one-way travel time for 1-stop routes: 15h 08m.
Flights via Shanghai (PVG) offer the fastest connection on this route, with an average layover time of 1h 33m.
Crew
Overall
Comfort
Food
Boarding
Entertainment
Reviews
Anonymous,Aug 2025
BKK - TPE
Crew
Overall
Comfort
Food
Boarding
Entertainment
Reviews
Anonymous,Aug 2025
BKK - TPE
Crew
Overall
Comfort
Food
Boarding
Entertainment
Reviews
Anonymous,Aug 2025
BKK - TPE
Crew
Overall
Comfort
Food
Boarding
Entertainment
Reviews
Anonymous,Aug 2025
BKK - TPE
Crew
Overall
Comfort
Food
Boarding
Entertainment
Reviews
Anonymous,Aug 2025
BKK - TPE
Crew
Overall
Comfort
Food
Boarding
Entertainment
Reviews
Anonymous,Aug 2025
BKK - TPE
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$500 | Average$568 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$768 | Average$806 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$800 | Average$951 | FlexibilityNo cancel fee | On-time78% | |
| Cheapest$831 | Average$957 | FlexibilityNo cancel fee | On-time79% | |
| Cheapest$837 | Average$1,000 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$882 | Average$979 | FlexibilityNo cancel fee | On-time68% | |
| Cheapest$932 | Average$1,067 | FlexibilityNo cancel fee | On-time74% | |
| Cheapest$941 | Average$1,074 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$1,073 | Average$1,364 | FlexibilityNo cancel fee | On-time77% |