You know where to go
Select an airport in the search form
You don't know where to go
See where you can go on your budget
Find cheap flights to Southeast Asia
Return
Economy
Search hundreds of travel sites at once for deals on flights to Southeast Asia
Book cheap flights to Southeast Asia
(Return)
Gulf Air
Wed, 20 May
LHR
London Heathrow Airport
BKK
Bangkok Suvarnabhumi Airport
17h 30m
Sat, 6 Jun
BKK
Bangkok Suvarnabhumi Airport
LHR
London Heathrow Airport
15h 20m
Trip: 18 days
Based on null reviews
Gulf Air
Wed, 3 Jun
LHR
London Heathrow Airport
BKK
Bangkok Suvarnabhumi Airport
17h 30m
Wed, 17 Jun
BKK
Bangkok Suvarnabhumi Airport
LHR
London Heathrow Airport
15h 20m
Trip: 15 days
Based on null reviews
Finnair
Sat, 5 Sep
LHR
London Heathrow Airport
BKK
Bangkok Suvarnabhumi Airport
14h 55m
Sat, 3 Oct
BKK
Bangkok Suvarnabhumi Airport
LHR
London Heathrow Airport
15h 10m
Trip: 29 days
Based on null reviews
Finnair
Tue, 8 Sep
LHR
London Heathrow Airport
BKK
Bangkok Suvarnabhumi Airport
14h 55m
Tue, 22 Sep
BKK
Bangkok Suvarnabhumi Airport
LHR
London Heathrow Airport
14h 10m
Trip: 15 days
Based on null reviews
Finnair
Mon, 21 Sep
LHR
London Heathrow Airport
BKK
Bangkok Suvarnabhumi Airport
28h 45m
Sat, 10 Oct
BKK
Bangkok Suvarnabhumi Airport
LHR
London Heathrow Airport
15h 10m
Trip: 20 days
Based on null reviews
Finnair
Sat, 17 Oct
LHR
London Heathrow Airport
BKK
Bangkok Suvarnabhumi Airport
28h 45m
Sun, 15 Nov
BKK
Bangkok Suvarnabhumi Airport
LHR
London Heathrow Airport
14h 55m
Trip: 30 days
Based on null reviews
Finnair
Sat, 31 Oct
LHR
London Heathrow Airport
BKK
Bangkok Suvarnabhumi Airport
14h 05m
Sat, 21 Nov
BKK
Bangkok Suvarnabhumi Airport
LHR
London Heathrow Airport
14h 55m
Trip: 22 days
Based on null reviews
Finnair
Fri, 28 Aug
EDI
Edinburgh Turnhouse Airport
BKK
Bangkok Suvarnabhumi Airport
15h 15m
Sat, 12 Sep
BKK
Bangkok Suvarnabhumi Airport
EDI
Edinburgh Turnhouse Airport
30h 20m
Trip: 16 days
Based on null reviews
Finnair
Fri, 4 Sep
EDI
Edinburgh Turnhouse Airport
BKK
Bangkok Suvarnabhumi Airport
15h 15m
Sun, 20 Sep
BKK
Bangkok Suvarnabhumi Airport
EDI
Edinburgh Turnhouse Airport
30h 20m
Trip: 17 days
Based on null reviews
Finnair
Thu, 20 Aug
LHR
London Heathrow Airport
BKK
Bangkok Suvarnabhumi Airport
14h 55m
Wed, 30 Sep
BKK
Bangkok Suvarnabhumi Airport
LHR
London Heathrow Airport
14h 10m
Trip: 42 days
Based on null reviews
Finnair
Fri, 28 Aug
LHR
London Heathrow Airport
BKK
Bangkok Suvarnabhumi Airport
14h 55m
Sat, 12 Sep
BKK
Bangkok Suvarnabhumi Airport
LHR
London Heathrow Airport
14h 10m
Trip: 16 days
Based on null reviews
Finnair
Sun, 30 Aug
LHR
London Heathrow Airport
BKK
Bangkok Suvarnabhumi Airport
14h 55m
Sun, 6 Sep
BKK
Bangkok Suvarnabhumi Airport
LHR
London Heathrow Airport
14h 10m
Trip: 8 days
Based on null reviews
Finnair
Sat, 29 Aug
MAN
Manchester Airport (UK)
BKK
Bangkok Suvarnabhumi Airport
15h 00m
Tue, 8 Sep
BKK
Bangkok Suvarnabhumi Airport
MAN
Manchester Airport (UK)
30h 25m
Trip: 11 days
Based on null reviews
Finnair
Sat, 12 Sep
MAN
Manchester Airport (UK)
BKK
Bangkok Suvarnabhumi Airport
31h 25m
Wed, 30 Sep
BKK
Bangkok Suvarnabhumi Airport
MAN
Manchester Airport (UK)
14h 05m
Trip: 19 days
Based on null reviews
Finnair
Thu, 8 Oct
MAN
Manchester Airport (UK)
BKK
Bangkok Suvarnabhumi Airport
15h 00m
Sun, 18 Oct
BKK
Bangkok Suvarnabhumi Airport
MAN
Manchester Airport (UK)
14h 05m
Trip: 11 days
Based on null reviews
Finnair
Sat, 24 Oct
MAN
Manchester Airport (UK)
BKK
Bangkok Suvarnabhumi Airport
15h 00m
Tue, 10 Nov
BKK
Bangkok Suvarnabhumi Airport
MAN
Manchester Airport (UK)
14h 55m
Trip: 18 days
Based on null reviews
SWISS
Tue, 12 May
LHR
London Heathrow Airport
SIN
Singapore Changi Airport
15h 15m
Sat, 30 May
SIN
Singapore Changi Airport
LHR
London Heathrow Airport
15h 25m
Trip: 19 days
Based on null reviews
Finnair
Thu, 3 Sep
LHR
London Heathrow Airport
SIN
Singapore Changi Airport
15h 20m
Thu, 24 Sep
SIN
Singapore Changi Airport
LHR
London Heathrow Airport
16h 45m
Trip: 22 days
Based on null reviews
Finnair
Mon, 14 Sep
LHR
London Heathrow Airport
SIN
Singapore Changi Airport
15h 20m
Wed, 23 Sep
SIN
Singapore Changi Airport
LHR
London Heathrow Airport
16h 45m
Trip: 10 days
Based on null reviews
FAQs for booking United Kingdom to Southeast Asia flights
How does KAYAK’s flight Price Forecast tool help me choose the right time to buy?
KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a given destination and date is likely to change within 7 days, so travellers know whether to wait or book now.
Flights to Southeast Asia
Return flight deals:
Browse destinations:
£600
£518
£5006
£628
£471
£549
£346
£794
£848
£664
£617
£1314
£624
£708
£693
£478
£486
£478
£802
£941
£503
£668
£465
£785
£437
£1429
£726
£739
£646
£756
£462
£861
£911
£421
£641
£583
£432
£1042
£659
£516
£486
£470
£435
£649
£338
£528
£541
£692
£758
£515
£541
£553
£995
£749
£644
£437
£606
£460
£528
£591
£845
£670
£465
£412
£562
£376
£604
£567
£679
£896
£790
£763
£486
£365
£586
£869
£524
£829
£581
£768
£847
£499
£688
£516
£565
£528
£610
£752
*
Prices are per person, are for e–tickets and include all taxes & fees in GBP.
We attempt to get accurate prices, however, prices are not guaranteed.
We attempt to get accurate prices, however, prices are not guaranteed.
Here's why:
We’re not the seller
At KAYAK we don’t set prices, so it’s not possible for us to guarantee what other companies are selling.
We aggregate tons of data for you
Our service lets you quickly and easily compare results from hundreds of travel sites at once. In this sense, KAYAK is a search engine and we don't guarantee prices we find.
Why aren’t prices accurate 100% of the time?
Prices on airline seats, hotel rooms and car hires can change frequently. Several people may also be trying to buy the same travel option simultaneously. As a result, you may find on occasion that certain prices are no longer available.
More questions or if you have a bad price to report to us
Please send us an
email
and someone from our team will get back to you promptly.
-
1