$388+ Cheap flights from London (LON) to Southeast Asia
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/29. Fares are subject to change and may not be available on all flights or dates of travel.
LON — BKK
May 17 — May 241
Round-trip
1 adult, Economy
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Find cheap flights from London to Southeast Asia with Cheapflights
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Cheapest flights from London to Southeast AsiaExplore the most affordable flight options available from London to Southeast Asia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 17, 2026.
Explore the most affordable flight options available from London to Southeast Asia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 17, 2026.
This FlightHub deal was found by Cheapflights users on 4/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/208:25 pm
LHR
- HAN
1 stop33h 30m
Air China
Sun 10/111:25 pm
HAN
- LHR
1 stop34h 15m
Air China
Deal found 4/13![Air China logo]()
$563
This China Eastern deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure China Eastern is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/2311:35 am
LGW
- BKK
1 stop18h 55m
China Eastern
Mon 5/43:00 am
BKK
- LGW
2 stops33h 40m
China Eastern
Deal found 4/14![China Eastern logo]()
$584
This China Eastern deal was found by Cheapflights users on 4/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure China Eastern is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/276:00 pm
LGW
- BKK
1 stop24h 40m
China Eastern
Mon 5/43:00 am
BKK
- LGW
2 stops33h 40m
China Eastern
Deal found 4/13![China Eastern logo]()
$585
This China Eastern deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure China Eastern is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/2611:35 am
LGW
- BKK
1 stop18h 55m
China Eastern
Sat 10/109:55 pm
BKK
- LGW
1 stop38h 45m
China Eastern
Deal found 4/14![China Eastern logo]()
$588
This Booking.com deal was found by Cheapflights users on 4/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/175:30 pm
LHR
- BKK
1 stop38h 15m
SAUDIA
Thu 6/183:25 pm
BKK
- LHR
1 stop22h 05m
SAUDIA
Deal found 4/15![SAUDIA logo]()
$588
This Justfly.com deal was found by Cheapflights users on 4/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/3110:10 pm
LHR
- BKK
1 stop19h 55m
SAUDIA
Sat 6/203:25 pm
BKK
- LHR
1 stop22h 05m
SAUDIA
Deal found 4/17![SAUDIA logo]()
$589
This China Eastern deal was found by Cheapflights users on 4/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure China Eastern is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/56:00 pm
LGW
- BKK
1 stop21h 55m
China Eastern
Sat 10/242:10 am
BKK
- LGW
1 stop18h 50m
China Eastern
Deal found 4/13![China Eastern logo]()
$590
This Trip.com deal was found by Cheapflights users on 4/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/1010:10 pm
LHR
- BKK
1 stop19h 55m
SAUDIA
Sun 6/73:25 pm
BKK
- LHR
1 stop28h 50m
SAUDIA
Deal found 4/15![SAUDIA logo]()
$590
This China Eastern deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure China Eastern is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/2111:35 am
LGW
- BKK
2 stops31h 40m
China Eastern
Mon 5/43:00 am
BKK
- LGW
2 stops33h 40m
China Eastern
Deal found 4/14![China Eastern logo]()
$591
This Kiwi.com deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/64:15 pm
LHR
- BKK
1 stop15h 30m
SAUDIA
Fri 5/151:50 am
BKK
- LHR
1 stop16h 50m
SAUDIA
Deal found 4/14![SAUDIA logo]()
$591
This FlightHub deal was found by Cheapflights users on 4/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/2310:10 pm
LHR
- BKK
1 stop19h 55m
SAUDIA
Mon 5/113:20 pm
BKK
- LHR
1 stop27h 20m
SAUDIA
Deal found 4/15![SAUDIA logo]()
$592
This Kiwi.com deal was found by Cheapflights users on 4/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/84:15 pm
LHR
- BKK
1 stop15h 30m
SAUDIA
Thu 5/283:25 pm
BKK
- LHR
1 stop22h 05m
SAUDIA
Deal found 4/15![SAUDIA logo]()
$593
Best flights from London to Southeast AsiaDiscover carefully curated flight deals from London to Southeast Asia that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 17, 2026.
Discover carefully curated flight deals from London to Southeast Asia that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 17, 2026.
This AirAsia deal was found by Cheapflights users on 4/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure AirAsia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/1510:25 am
LGW
- SIN
1 stop24h 40m
Multiple Airlines
Tue 9/224:10 pm
SIN
- LGW
1 stop22h 15m
Multiple Airlines
Deal found 4/13![Multiple Airlines logo]()
$704
This China Eastern deal was found by Cheapflights users on 4/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure China Eastern is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/711:35 am
LGW
- SIN
1 stop34h 50m
China Eastern
Sun 5/102:30 am
SIN
- LGW
2 stops59h 10m
China Eastern
Deal found 4/12![China Eastern logo]()
$715
This Etihad Airways deal was found by Cheapflights users on 4/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Etihad Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/289:10 pm
LHR
- HKT
1 stop15h 20m
Etihad Airways
Thu 6/48:55 am
HKT
- LHR
1 stop15h 50m
Etihad Airways
Deal found 4/13![Etihad Airways logo]()
$729
This Gulf Air deal was found by Cheapflights users on 4/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gulf Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/1410:00 am
LHR
- SIN
1 stop19h 45m
Gulf Air
Wed 6/178:00 pm
SIN
- LHR
1 stop26h 20m
Gulf Air
Deal found 4/16![Gulf Air logo]()
$754
This Oman Air deal was found by Cheapflights users on 4/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Oman Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/198:50 pm
LHR
- KUL
1 stop16h 15m
Oman Air
Tue 7/79:35 pm
KUL
- LHR
1 stop28h 35m
Oman Air
Deal found 4/12![Oman Air logo]()
$892
This Emirates deal was found by Cheapflights users on 4/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Emirates is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/119:45 pm
LGW
- BKK
1 stop14h 35m
Emirates
Sun 5/243:15 am
BKK
- LGW
1 stop15h 20m
Emirates
Deal found 4/15![Emirates logo]()
$911
This British Airways deal was found by Cheapflights users on 4/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/157:25 pm
LHR
- SIN
Nonstop13h 40m
British Airways
Mon 9/213:15 am
SIN
- LHR
1 stop17h 00m
British Airways
Deal found 4/13![British Airways logo]()
$952
This Singapore Airlines deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Singapore Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/309:25 am
LHR
- SIN
Nonstop13h 20m
Singapore Airlines
Wed 12/912:45 pm
SIN
- LHR
Nonstop14h 25m
Singapore Airlines
Deal found 4/14![Singapore Airlines logo]()
$975
This Qatar Airways deal was found by Cheapflights users on 4/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/283:30 pm
LHR
- HKT
2 stops19h 55m
Qatar Airways
Tue 5/128:45 pm
HKT
- LHR
1 stop16h 50m
Qatar Airways
Deal found 4/12![Qatar Airways logo]()
$1,003
This Kuwait Airways deal was found by Cheapflights users on 4/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kuwait Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/94:45 pm
LHR
- MNL
1 stop17h 10m
Kuwait Airways
Sun 10/1810:00 pm
MNL
- LHR
1 stop23h 45m
Kuwait Airways
Deal found 4/13![Kuwait Airways logo]()
$1,030
This China Airlines deal was found by Cheapflights users on 4/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/158:55 pm
LHR
- MNL
2 stops29h 40m
China Airlines
Fri 10/210:35 am
MNL
- LHR
1 stop36h 55m
China Airlines
Deal found 4/15![China Airlines logo]()
$1,046
This Vietnam Airlines deal was found by Cheapflights users on 4/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Vietnam Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/156:55 pm
LHR
- SGN
1 stop19h 15m
Vietnam Airlines
Tue 10/610:25 am
SGN
- LHR
Nonstop13h 25m
Vietnam Airlines
Deal found 4/16![Vietnam Airlines logo]()
$1,058
This Malaysia Airlines deal was found by Cheapflights users on 4/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Malaysia Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/139:35 pm
LHR
- LGK
1 stop32h 30m
Malaysia Airlines
Fri 10/238:25 pm
LGK
- LHR
1 stop27h 10m
Malaysia Airlines
Deal found 4/16![Malaysia Airlines logo]()
$1,126
This Finnair deal was found by Cheapflights users on 4/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/26:10 pm
LHR
- BKK
1 stop29h 20m
Finnair
Wed 10/73:00 pm
BKK
- LHR
2 stops32h 05m
Finnair
Deal found 4/12![Finnair logo]()
$1,193
This SWISS deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/38:55 am
LHR
- BKK
2 stops18h 55m
SWISS
Mon 5/186:30 pm
BKK
- LHR
2 stops19h 25m
SWISS
Deal found 4/14![SWISS logo]()
$1,415
This Etihad Airways deal was found by Cheapflights users on 4/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Etihad Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/299:15 am
LHR
- HKT
1 stop27h 15m
Etihad Airways
Sun 5/319:25 am
HKT
- LHR
1 stop33h 20m
Etihad Airways
Deal found 4/13![Etihad Airways logo]()
$729
This China Eastern deal was found by Cheapflights users on 4/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure China Eastern is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/311:35 am
LGW
- BKK
2 stops42h 45m
China Eastern
Fri 6/192:10 am
BKK
- LGW
1 stop18h 50m
China Eastern
Deal found 4/15![China Eastern logo]()
$843
This AirAsia deal was found by Cheapflights users on 4/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure AirAsia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/2910:25 am
LGW
- SIN
1 stop22h 15m
Multiple Airlines
Sun 12/62:55 pm
SIN
- LGW
1 stop23h 30m
Multiple Airlines
Deal found 4/16![Multiple Airlines logo]()
$845
This Gulf Air deal was found by Cheapflights users on 4/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gulf Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/510:40 am
LGW
- SIN
1 stop19h 05m
Gulf Air
Sat 7/188:00 pm
SIN
- LGW
1 stop17h 55m
Gulf Air
Deal found 4/13![Gulf Air logo]()
$887
This Emirates deal was found by Cheapflights users on 4/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Emirates is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/302:35 pm
LGW
- BKK
1 stop16h 35m
Emirates
Wed 5/273:15 am
BKK
- LGW
1 stop15h 20m
Emirates
Deal found 4/15![Emirates logo]()
$911
This Oman Air deal was found by Cheapflights users on 4/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Oman Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/238:50 pm
LHR
- SGN
2 stops31h 10m
Oman Air
Wed 10/74:40 pm
SGN
- LHR
2 stops32h 30m
Oman Air
Deal found 4/13![Oman Air logo]()
$951
This Singapore Airlines deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Singapore Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/2910:05 am
LGW
- SIN
Nonstop13h 20m
Singapore Airlines
Sun 12/611:55 pm
SIN
- LGW
Nonstop14h 30m
Singapore Airlines
Deal found 4/14![Singapore Airlines logo]()
$975
This Qatar Airways deal was found by Cheapflights users on 4/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/124:00 pm
LHR
- HKT
2 stops19h 25m
Qatar Airways
Wed 5/208:45 pm
HKT
- LHR
1 stop17h 15m
Qatar Airways
Deal found 4/15![Qatar Airways logo]()
$1,005
This China Eastern deal was found by Cheapflights users on 4/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure China Eastern is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/2111:35 am
LGW
- BKK
1 stop32h 20m
China Eastern
Wed 7/223:55 pm
BKK
- LGW
3 stops53h 05m
China Eastern
Deal found 4/13![China Eastern logo]()
$927
This Emirates deal was found by Cheapflights users on 4/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Emirates is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/2010:05 am
LGW
- BKK
1 stop21h 25m
Emirates
Wed 9/239:35 pm
BKK
- LGW
1 stop15h 45m
Emirates
Deal found 4/16![Emirates logo]()
$930
This Etihad Airways deal was found by Cheapflights users on 4/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Etihad Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/299:30 am
LHR
- HAN
1 stop15h 10m
Etihad Airways
Sun 7/268:40 pm
HAN
- LHR
1 stop16h 20m
Etihad Airways
Deal found 4/12![Etihad Airways logo]()
$937
This British Airways deal was found by Cheapflights users on 4/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/69:30 pm
LHR
- KUL
Nonstop13h 20m
British Airways
Sun 10/1810:50 pm
KUL
- LHR
Nonstop13h 35m
British Airways
Deal found 4/12![British Airways logo]()
$1,033
This Vietnam Airlines deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Vietnam Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/186:55 pm
LHR
- HAN
1 stop17h 15m
Vietnam Airlines
Mon 7/610:05 am
HAN
- LHR
Nonstop13h 00m
Vietnam Airlines
Deal found 4/14![Vietnam Airlines logo]()
$1,069
This Qatar Airways deal was found by Cheapflights users on 4/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/3010:15 pm
LGW
- BKK
Nonstop11h 50m
Multiple Airlines
Mon 5/187:00 pm
BKK
- LGW
1 stop18h 30m
Multiple Airlines
Deal found 4/15![Multiple Airlines logo]()
$1,020
This Qatar Airways deal was found by Cheapflights users on 4/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/53:30 pm
LHR
- HKT
1 stop16h 35m
Qatar Airways
Thu 5/142:45 pm
HKT
- LHR
2 stops22h 50m
Qatar Airways
Deal found 4/12![Qatar Airways logo]()
$1,021
Last-minute flights from London to Southeast AsiaDiscover last-minute flight deals from London to Southeast Asia. Data last updated April 17, 2026 and is based on user searches.
Discover last-minute flight deals from London to Southeast Asia. Data last updated April 17, 2026 and is based on user searches.
This China Eastern deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure China Eastern is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/2211:35 am
LGW
- BKK
2 stops28h 40m
China Eastern
Mon 5/42:35 am
BKK
- LGW
2 stops34h 05m
China Eastern
Deal found 4/14![China Eastern logo]()
$591
This China Eastern deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure China Eastern is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/2311:35 am
LGW
- BKK
1 stop18h 55m
China Eastern
Mon 5/43:00 am
BKK
- LGW
2 stops33h 40m
China Eastern
Deal found 4/14![China Eastern logo]()
$584
This FlightHub deal was found by Cheapflights users on 4/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/2310:10 pm
LHR
- BKK
1 stop19h 55m
SAUDIA
Mon 5/113:20 pm
BKK
- LHR
1 stop27h 20m
SAUDIA
Deal found 4/15![SAUDIA logo]()
$592
This SAUDIA deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SAUDIA is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/2310:10 pm
LHR
- BKK
1 stop19h 55m
SAUDIA
Fri 5/81:50 am
BKK
- LHR
1 stop16h 50m
SAUDIA
Deal found 4/14![SAUDIA logo]()
$596
This China Eastern deal was found by Cheapflights users on 4/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure China Eastern is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/276:00 pm
LGW
- BKK
1 stop24h 40m
China Eastern
Mon 5/43:00 am
BKK
- LGW
2 stops33h 40m
China Eastern
Deal found 4/13![China Eastern logo]()
$585
This Gotogate deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/110:00 am
LHR
- BKK
1 stop21h 45m
SAUDIA
Sun 5/173:25 pm
BKK
- LHR
1 stop22h 05m
SAUDIA
Deal found 4/14![SAUDIA logo]()
$595
This Kiwi.com deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/64:15 pm
LHR
- BKK
1 stop15h 30m
SAUDIA
Fri 5/151:50 am
BKK
- LHR
1 stop16h 50m
SAUDIA
Deal found 4/14![SAUDIA logo]()
$591
This Kiwi.com deal was found by Cheapflights users on 4/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/84:15 pm
LHR
- BKK
1 stop15h 30m
SAUDIA
Thu 5/283:25 pm
BKK
- LHR
1 stop22h 05m
SAUDIA
Deal found 4/15![SAUDIA logo]()
$593
This Trip.com deal was found by Cheapflights users on 4/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/1010:10 pm
LHR
- BKK
1 stop19h 55m
SAUDIA
Sun 6/73:25 pm
BKK
- LHR
1 stop28h 50m
SAUDIA
Deal found 4/15![SAUDIA logo]()
$590
This Booking.com deal was found by Cheapflights users on 4/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/175:30 pm
LHR
- BKK
1 stop38h 15m
SAUDIA
Thu 6/183:25 pm
BKK
- LHR
1 stop22h 05m
SAUDIA
Deal found 4/15![SAUDIA logo]()
$588
This Justfly.com deal was found by Cheapflights users on 4/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/254:15 pm
LHR
- BKK
1 stop15h 30m
SAUDIA
Tue 6/233:25 pm
BKK
- LHR
1 stop22h 05m
SAUDIA
Deal found 4/17![SAUDIA logo]()
$597
This Justfly.com deal was found by Cheapflights users on 4/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/3110:10 pm
LHR
- BKK
1 stop19h 55m
SAUDIA
Sat 6/203:25 pm
BKK
- LHR
1 stop22h 05m
SAUDIA
Deal found 4/17![SAUDIA logo]()
$589
One-way flights from London to Southeast AsiaSearch for one-way flight options from London to Southeast Asia. Find affordable one-way fares based on user searches. Data last updated April 17, 2026.
Search for one-way flight options from London to Southeast Asia. Find affordable one-way fares based on user searches. Data last updated April 17, 2026.
This Mytrip deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/298:35 pm
LGW
- BKK
2 stops27h 40m
Multiple Airlines
Deal found 4/14![Multiple Airlines logo]()
$388
This China Eastern deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure China Eastern is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/1211:35 am
LGW
- BKK
2 stops28h 40m
China Eastern
Deal found 4/14![China Eastern logo]()
$391
This Booking.com deal was found by Cheapflights users on 4/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/1610:10 pm
LHR
- BKK
1 stop19h 55m
SAUDIA
Deal found 4/16![SAUDIA logo]()
$392
This China Eastern deal was found by Cheapflights users on 4/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure China Eastern is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/1811:35 am
LGW
- BKK
3 stops28h 40m
China Eastern
Deal found 4/16![China Eastern logo]()
$393
This Air China deal was found by Cheapflights users on 4/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air China is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/128:25 pm
LHR
- BKK
1 stop21h 45m
Air China
Deal found 4/12![Air China logo]()
$393
This Air China deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air China is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/710:40 pm
LHR
- BKK
1 stop19h 30m
Air China
Deal found 4/14![Air China logo]()
$395
This FlightHub deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/2610:10 pm
LHR
- BKK
1 stop19h 55m
SAUDIA
Deal found 4/14![SAUDIA logo]()
$398
This FlightHub deal was found by Cheapflights users on 4/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/64:15 pm
LHR
- BKK
1 stop15h 30m
SAUDIA
Deal found 4/16![SAUDIA logo]()
$400
This FlightHub deal was found by Cheapflights users on 4/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/228:25 pm
LHR
- SGN
1 stop22h 15m
Air China
Deal found 4/13![Air China logo]()
$407
This Justfly.com deal was found by Cheapflights users on 4/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/168:25 pm
LHR
- HAN
1 stop33h 30m
Air China
Deal found 4/12![Air China logo]()
$407
This FlightHub deal was found by Cheapflights users on 4/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/1510:40 pm
LHR
- HAN
1 stop31h 15m
Air China
Deal found 4/15![Air China logo]()
$408
This Mytrip deal was found by Cheapflights users on 4/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/63:10 pm
LHR
- BKK
2 stops21h 00m
Multiple Airlines
Deal found 4/17![Multiple Airlines logo]()
$408
Find flight deals from London to Southeast Asia
Keep the following information in mind while searching for London to Southeast Asia flight deals. Data was last updated April 17, 2026.
Round-trip from | $563 (FlightHub) |
|---|---|
One-way from | $388 (Mytrip) |
Popular in | December |
Cheapest in | November |
Average price | $893 |
Cheapflights Fare Finder
Customize your flight search to find flights from London to Southeast Asia that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated April 17, 2026.
Use the filters below to find and compare flights from London to Southeast Asia that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
LondonSingapore
LGW - SIN
LGWSIN
London Gatwick
Tue 9/15
10:25 am-6:05 pm
1 stop24h 40m
Singapore Changi
Tue 9/22
4:10 pm-7:25 am
1 stop22h 15m
$704
LondonSingapore
LGW - SIN
LGWSIN
London Gatwick
Thu 5/7
11:35 am-5:25 am
1 stop34h 50m
Singapore Changi
Sun 5/10
2:30 am-6:40 am
2 stops59h 10m
$715
LondonPhuket City
LHR - HKT
LHRHKT
London Heathrow
Tue 4/28
9:10 pm-6:30 pm
1 stop15h 20m
Phuket City
Thu 6/4
8:55 am-6:45 pm
1 stop15h 50m
$729
LondonPhuket City
LHR - HKT
LHRHKT
London Heathrow
Wed 4/29
9:15 am-6:30 pm
1 stop27h 15m
Phuket City
Sun 5/31
9:25 am-12:45 pm
1 stop33h 20m
$729
LondonSingapore
LHR - SIN
LHRSIN
London Heathrow
Sun 6/14
10:00 am-12:45 pm
1 stop19h 45m
Singapore Changi
Wed 6/17
8:00 pm-3:20 pm
1 stop26h 20m
$754
LondonBangkok
LGW - BKK
LGWBKK
London Gatwick
Wed 6/3
11:35 am-12:20 pm
2 stops42h 45m
Bangkok Suvarnabhumi
Fri 6/19
2:10 am-3:00 pm
1 stop18h 50m
$843
LondonSingapore
LGW - SIN
LGWSIN
London Gatwick
Tue 9/29
10:25 am-3:40 pm
1 stop22h 15m
Singapore Changi
Sun 12/6
2:55 pm-6:25 am
1 stop23h 30m
$845
LondonSingapore
LGW - SIN
LGWSIN
London Gatwick
Sun 7/5
10:40 am-12:45 pm
1 stop19h 05m
Singapore Changi
Sat 7/18
8:00 pm-6:55 am
1 stop17h 55m
$887
LondonKuala Lumpur
LHR - KUL
LHRKUL
London Heathrow
Tue 5/19
8:50 pm-8:05 pm
1 stop16h 15m
Kuala Lumpur Intl
Tue 7/7
9:35 pm-7:10 pm
1 stop28h 35m
$892
LondonBangkok
LGW - BKK
LGWBKK
London Gatwick
Mon 5/11
9:45 pm-6:20 pm
1 stop14h 35m
Bangkok Suvarnabhumi
Sun 5/24
3:15 am-12:35 pm
1 stop15h 20m
$911
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from London to Southeast Asia
Have a flexible travel schedule? Discover the best time to fly to Southeast Asia from London with our price prediction graph.
LGW-BKK
LHR-BKK
LHR-SIN
LHR-HKT
LGW-SIN
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from London to Southeast Asia
LON-zzYJX
LGW-BKK
LHR-BKK
LHR-SIN
LHR-HKT
What is the cheapest month to book a flight from London to Southeast Asia?
Currently, November is the cheapest month in which you can book a flight from London to Southeast Asia (average of $810). Flying from London to Southeast Asia in December is currently the most expensive (average of $1,375). 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.
What is the cheapest time of day to fly from LON to YJX?
Find hourly flight availability from London to Southeast Asia. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 17, 2026.
A simple way to save on the total cost of your ticket is to fly from London to Southeast Asia in the afternoon. If you’re flexible enough to do this you can expect to save up to 15% on your trip compared to booking a flight at noon.
Weekly flight availability from London to Southeast Asia
Explore weekly flight availability from London to Southeast Asia. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated April 17, 2026.
The most flights from LON to zzYJX are scheduled on a Tuesday (9 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (7 on average).
Reviews of airlines servicing Southeast Asia
Get insights into the airlines that provide service to Southeast Asia. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Southeast Asia. Reviews last updated April 17, 2026.
Read through reviews of airlines operating flights from London to Southeast Asia, such as Singapore Airlines,Qatar Airways, andChina Southern. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Crew
8.6
Food
7.8
Entertainment
8.0
Comfort
8.0
Boarding
8.3
Overall
8.2
Reviews
1 / 20
10.0
ExcellentJuliet,Oct 2025
PUS - SIN
Crew
8.6
Food
7.8
Entertainment
8.0
Comfort
8.0
Boarding
8.3
Overall
8.2
Reviews
1 / 20
10.0
ExcellentJuliet,Oct 2025
PUS - SIN
Crew
8.6
Food
7.8
Entertainment
8.0
Comfort
8.0
Boarding
8.3
Overall
8.2
Reviews
1 / 20
10.0
ExcellentJuliet,Oct 2025
PUS - SIN
Crew
8.6
Food
7.8
Entertainment
8.0
Comfort
8.0
Boarding
8.3
Overall
8.2
Reviews
1 / 20
10.0
ExcellentJuliet,Oct 2025
PUS - SIN
Crew
8.6
Food
7.8
Entertainment
8.0
Comfort
8.0
Boarding
8.3
Overall
8.2
Reviews
1 / 20
10.0
ExcellentJuliet,Oct 2025
PUS - SIN
Crew
8.6
Food
7.8
Entertainment
8.0
Comfort
8.0
Boarding
8.3
Overall
8.2
Reviews
1 / 20
10.0
ExcellentJuliet,Oct 2025
PUS - SIN
Related info for your journey
Find useful and relevant information for your journey from London to Southeast Asia. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
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Alternative routes for London to Southeast Asia
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Southeast Asia by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from London to Southeast Asia by cabin class
Find flights from London to Southeast Asia, based on your preferred cabin class, be it economy, premium economy, business, or first class.
London and Southeast Asia flights
Browse other London and Southeast Asia flight options. Last updated on April 17, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
London to Southeast Asia flights
Consider these flights traveling from London to Southeast Asia.
Top 10 airlines flying from London to Southeast Asia
Discover the top 10 airlines that operate flights from London to Southeast Asia. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated April 17, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$434 | Average$863 | FlexibilityNo cancel fee | On-time61% | |
| Cheapest$472 | Average$790 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$490 | Average$657 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$494 | Average$572 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$533 | Average$717 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$540 | Average$690 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$544 | Average$835 | FlexibilityNo cancel fee | On-time86% | |
| Cheapest$625 | Average$822 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$641 | Average$876 | FlexibilityNo cancel fee | On-time78% | |
| Cheapest$657 | Average$836 | FlexibilityNo cancel fee | On-time76% |