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 | $650 (Kiwi.com) |
One-way from | $228 (Scandinavian Airlines) |
Popular in | January |
Cheapest in | November |
Average price | $880 |
Good round-trip deal | $697 or less |
Good one-way deal | $260 or less |
Fly from
Fly to
Route
Depart
Return
Price
BangkokLondon
BKK - LGW
BKKLGW
Bangkok Suvarnabhumi
lun. 12/22
12:30 pm-6:30 pm
Nonstop13h 00m
London Gatwick
dom. 2/22
4:10 pm-10:25 am
Nonstop11h 15m
BangkokLondon
BKK - LGW
BKKLGW
Bangkok Suvarnabhumi
jue. 4/2
8:55 am-6:35 pm
1 stop15h 40m
London Gatwick
jue. 4/23
10:15 am-10:20 am
1 stop18h 05m
BangkokLondon
BKK - LGW
BKKLGW
Bangkok Suvarnabhumi
mié. 3/11
4:50 pm-6:30 am
1 stop20h 40m
London Gatwick
dom. 3/15
11:05 am-1:30 am
1 stop31h 25m
BangkokLondon
BKK - LGW
BKKLGW
Bangkok Suvarnabhumi
mar. 12/23
8:25 am-2:25 pm
Nonstop13h 00m
London Gatwick
mar. 1/6
4:00 pm-10:25 am
Nonstop11h 25m
BangkokLondon
BKK - LGW
BKKLGW
Bangkok Suvarnabhumi
mié. 1/28
12:30 pm-6:30 pm
Nonstop13h 00m
London Gatwick
mar. 2/3
4:00 pm-10:25 am
Nonstop11h 25m
BangkokLondon
BKK - LHR
BKKLHR
Bangkok Suvarnabhumi
lun. 5/11
2:55 am-3:15 pm
1 stop18h 20m
London Heathrow
mar. 5/19
8:55 pm-11:55 pm
1 stop21h 00m
BangkokLondon
BKK - LHR
BKKLHR
Bangkok Suvarnabhumi
mié. 3/11
2:45 pm-6:35 am
2 stops22h 50m
London Heathrow
dom. 3/15
1:00 pm-2:10 pm
1 stop18h 10m
BangkokLondon
BKK - LHR
BKKLHR
Bangkok Suvarnabhumi
mar. 5/19
2:55 am-12:45 pm
1 stop15h 50m
London Heathrow
dom. 6/14
9:45 pm-11:55 pm
1 stop20h 10m
BangkokLondon
BKK - LHR
BKKLHR
Bangkok Suvarnabhumi
sáb. 3/28
2:45 pm-6:30 am
2 stops22h 45m
London Heathrow
sáb. 4/11
1:15 pm-7:20 pm
2 stops24h 05m
BangkokLondon
BKK - LGW
BKKLGW
Bangkok Suvarnabhumi
dom. 4/5
7:00 pm-7:05 am
1 stop18h 05m
London Gatwick
vie. 4/17
12:00 pm-11:40 am
1 stop17h 40m
| 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, November is the cheapest month in which you can book a flight from Bangkok Suvarnabhumi Airport to London (average of $269). Flying from Bangkok Suvarnabhumi Airport to London in September is currently the most expensive (average of $772). 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 40% 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 29% 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.
About 14% of weekly flights between Bangkok and London have experienced delays in the past year, with the average delay time being 95 minutes.
Historically, flights departing at night are less likely to be delayed, whereas flights leaving in the early afternoon tend to experience delays more often.
Tuesday tends to have the lowest number of delays on this route, whereas Saturday has historically faced a higher average of delays compared to other days of the week.
Over the last year, British Airways have had the lowest number of delays on this route, with just 5% of flights being delayed.
Entertainment
Crew
Boarding
Overall
Food
Comfort
Reviews
Anonymous,Nov 2025
TPE - CRK
Entertainment
Crew
Boarding
Overall
Food
Comfort
Reviews
Anonymous,Nov 2025
TPE - CRK
Entertainment
Crew
Boarding
Overall
Food
Comfort
Reviews
Anonymous,Nov 2025
TPE - CRK
Entertainment
Crew
Boarding
Overall
Food
Comfort
Reviews
Anonymous,Nov 2025
TPE - CRK
Entertainment
Crew
Boarding
Overall
Food
Comfort
Reviews
Anonymous,Nov 2025
TPE - CRK
Entertainment
Crew
Boarding
Overall
Food
Comfort
Reviews
Anonymous,Nov 2025
TPE - CRK
| 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$837 | Average$1,000 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$882 | Average$944 | FlexibilityNo cancel fee | On-time68% | |
| Cheapest$918 | Average$1,058 | FlexibilityNo cancel fee | On-time74% | |
| Cheapest$941 | Average$1,072 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$1,049 | Average$1,276 | FlexibilityNo cancel fee | On-time77% |