Cheap flights from London-Heathrow to Khon Kaen
Cheap return flights from London-Heathrow to Khon Kaen
Find the best deals
All prices shown are per person based on return flights only. Prices found in the last 48 hours.
Khon Kaen flight facts
What you need to know
What are the cheapest airlines?
- Thai Airways
- AirAsia
- EVA Air
These airlines usually offer the cheapest flights from London-Heathrow to Khon Kaen.
What airlines fly indirectly?
- Qatar Airways
- Emirates
- Singapore Airlines
These airlines fly from London-Heathrow to Khon Kaen, but you’ll have at least one layover.
How long is the flight?
15 hours
This is the shortest flight time from London-Heathrow to Khon Kaen.
Alternative flights from the UK to Khon Kaen
Check out prices for other routes
Alternative flights from London-Heathrow
You might find cheaper flights nearby
Today alone, Netflights has searched over five flights. 05 / Feb / 2026 is currently the lowest priced day of the year to fly the London-Heathrow/Khon Kaen route. There are around 35 flights on any given week from the UK to Khon Kaen and the cheapest month to fly right now is February. Not suitable? Try running another search or viewing all cheap flight deals.
How to get cheap flights from London-Heathrow to Khon Kaen
Tips and advice from our flight experts
You've searched for flights from London-Heathrow to Khon Kaen. We've found 25 flights and compared them to give you the best offer. Thai Airways is, on average, the cheapest for this route. Look out for them! The cheapest offer we've found is a one-way ticket for £46 from London-Heathrow to Khon Kaen on 18/03/2026 at 05:20.
We've scanned hundreds of airfares from dozens of airlines across the globe. In total, we've found 10 airlines that operate the 9,500 km flight from London-Heathrow to Khon Kaen.
To find the best offers, book in advance or look for last-minute deals. Consider flying with AirAsia, which is popular and affordable. The average flight duration is around 15 hours. After selecting an offer, fill out your information and proceed to payment. Don't forget to check our flight + hotel service to save time and money!
Other popular destinations near Khon Kaen
Where other people are flying to
