Cheap flights from London-Heathrow to Udon Thani
Cheap return flights from London-Heathrow to Udon Thani
Find the best deals
All prices shown are per person based on return flights only. Prices found in the last 48 hours.
Udon Thani flight facts
What you need to know
What are the cheapest airlines?
- Thai Airways
- Qatar Airways
- Emirates
These airlines usually offer the cheapest flights from London-Heathrow to Udon Thani.
What airlines fly indirectly?
- Singapore Airlines
- Etihad Airways
- Turkish Airlines
These airlines fly from London-Heathrow to Udon Thani, 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 Udon Thani.
Alternative flights from the UK to Udon Thani
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/Udon Thani route. There are around 35 flights on any given week from the UK to Udon Thani 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 Udon Thani
Tips and advice from our flight experts
You've searched for flights from London-Heathrow to Udon Thani. 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 their deals! The cheapest offer we've found is a one-way ticket for £83 from London-Heathrow to Udon Thani on 05/03/2026 at 02:00.
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 Udon Thani.
To find the best offers, consider booking 2-3 months in advance or looking for last-minute deals. The low season is typically from May to October. Thai Airways is a popular and affordable choice for this route, with an average flight duration of 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 Udon Thani
Where other people are flying to
