LHR - UTH

£345 Find Cheap Flights from London to Udon Thani – Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from London to Udon Thani departing on 6/8. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest return fare
£604
Multiple Airlines
Sun 9/8Tue 18/8
LHR - UTH • 2 stops
Cheapest one-way flight
£345
Multiple Airlines
Thu 6/8
LHR - UTH • 3 stops
Top airlines
Gulf Air
Cheapest • from £666 (return)
Thai Airways
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Direct flights
Not available
There are currently no direct flights between London and Udon Thani. You’ll need at least 1 connection.
Insights
Insights
Insights
Insights
When to travel
June
Cheapest • 100% price drop
January
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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We hope you love your trip to Udon Thani!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from London to Udon Thani (LHR-UTH)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from London to Udon Thani that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from London to Udon Thani

Sun, 9 Aug - Tue, 18 Aug
Multiple Airlines Logo
22:05 - 14:25
LHR
-
UTH
34h 20m
2 stops
Multiple Airlines Logo
14:55 - 20:00
UTH
-
LHR
35h 05m
2 stops
£604Multiple Airlines
Wed, 9 Sep - Wed, 16 Sep
Multiple Airlines Logo
14:45 - 17:15
LHR
-
UTH
20h 30m
2 stops
Multiple Airlines Logo
14:55 - 18:45
UTH
-
LHR
33h 50m
2 stops
£624Multiple Airlines
Tue, 8 Sep - Tue, 22 Sep
Multiple Airlines Logo
21:45 - 20:55
LHR
-
UTH
17h 10m
2 stops
Multiple Airlines Logo
14:55 - 18:45
UTH
-
LHR
33h 50m
2 stops
£641Multiple Airlines
Tue, 1 Sep - Tue, 15 Sep
Multiple Airlines Logo
14:45 - 17:15
LHR
-
UTH
20h 30m
2 stops
Multiple Airlines Logo
17:50 - 12:45
UTH
-
LHR
24h 55m
2 stops
£664Multiple Airlines
Tue, 8 Sep - Tue, 22 Sep
Gulf Air Logo
10:00 - 13:25
LHR
-
UTH
21h 25m
2 stops
Gulf Air Logo
13:55 - 06:55
UTH
-
LHR
23h 00m
2 stops
£666Gulf Air
Tue, 13 Oct - Tue, 10 Nov
Multiple Airlines Logo
09:30 - 13:25
LHR
-
UTH
21h 55m
2 stops
Multiple Airlines Logo
20:55 - 12:15
UTH
-
LHR
22h 20m
2 stops
£686Multiple Airlines
Sun, 13 Sep - Thu, 17 Sep
Gulf Air Logo
22:05 - 13:25
LHR
-
UTH
33h 20m
2 stops
Gulf Air Logo
13:55 - 06:55
UTH
-
LHR
23h 00m
2 stops
£693Gulf Air
Sun, 13 Sep - Thu, 17 Sep
Gulf Air Logo
22:05 - 13:25
LHR
-
UTH
33h 20m
2 stops
Gulf Air Logo
13:55 - 06:55
UTH
-
LHR
23h 00m
2 stops
£711Gulf Air
Tue, 8 Sep - Tue, 22 Sep
Thai Airways Logo
12:30 - 13:25
LHR
-
UTH
18h 55m
1 stop
Thai Airways Logo
08:40 - 19:15
UTH
-
LHR
16h 35m
1 stop
£904Thai Airways
Tue, 13 Oct - Tue, 10 Nov
Thai Airways Logo
12:30 - 13:25
LHR
-
UTH
18h 55m
1 stop
Thai Airways Logo
08:30 - 19:35
UTH
-
LHR
18h 05m
1 stop
£921Thai Airways
Booking Insights

KAYAK’s insights & trends for London to Udon Thani flights

Get data-powered insights and trends into flights from London to Udon Thani to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from London Heathrow Airport to Udon Thani?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from London Heathrow Airport to Udon Thani, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from London Heathrow Airport to Udon Thani is June, where tickets cost £0 (return) on average. On the other hand, the most expensive months are March and July, where the average cost of round-trip tickets is £1,392 and £1,180 respectively.

Find deals

Good to know - Cheap tickets from London to Udon Thani

Low season

August

Cheapest flight

£345
Best time to beat the crowds (20% less expensive on average)
Most popular time to fly and prices are also 11% lower on average.
Flight from London to Udon Thani

When to book flights from London to Udon Thani

Are your dates flexible? Find out the best times to travel from London to Udon Thani based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or returns with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking London to Udon Thani flights

  • What is the cheapest flight from London Heathrow Airport to Udon Thani?

    In the last 5 days, the lowest price for a flight from London Heathrow Airport to Udon Thani was £345 for a one-way ticket and £604 for a return.

  • Which airports will I be using when flying from London to Udon Thani?

    On your way to Udon Thani, you’ll fly out from London Heathrow. You’ll be landing at Udon Thani.

  • Which aircraft models fly most regularly from London to Udon Thani?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from London to Udon Thani?

    Star Alliance is the only airline alliance operating flights between London and Udon Thani.

  • How does KAYAK find such low prices on flights from London to Udon Thani?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from London to Udon Thani.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from London to Udon Thani?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Udon Thani from London is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights from London to Udon Thani?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly to Udon Thani with an airline and back to London with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from London to Udon Thani?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Udon Thani from London up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from London to Udon Thani

 
See real verified KAYAK customer reviews for airlines flying from London to Udon Thani. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from London to Udon Thani? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.9
Thai AirwaysOverall score based on 412 reviews
7.7Comfort
6.9Entertainment
7.5Food
8.0Boarding
8.4Crew
Airline reviews

Excellent service in business class. Well worth the slightly higher fare as it includes lounge access, additional luggage weight and a full hot meal on board.

10.0 ExcellentRamon, Jul 2026
BKK - KKC
Read more Thai Airways reviews

Excellent service in business class. Well worth the slightly higher fare as it includes lounge access, additional luggage weight and a full hot meal on board.

We still get drinks and a snack. Love the gift bags too.

Excellent airline. The plane was clean and the staff were very attentive

I'm not interested in improving the airline. Therefore, I won't explain this in more detail. Next time I'll try a different one.

The flight (boarding) was delayed by 40-50 minutes and there was very crowed. They need to improve on the timeliness & boarding process. (They asked passenger to board in groups, but the 2nd group was standing there waiting for 20 minutes!). However, services from the crew was very good, also the food was good as well. I also found the legroom was quite comfortable.

Except that our flight was cancelled, by mail, and later moved to 12 hours prior, then the experience was good. In Bangkok we were offered a hotel, it was fine, but would have been nice to know in advance😉

Although booked meal of fruit only The crew had not received this special meal The same happened on my flight Bangkok / CAN The films are so old that best is to use own computer to watch downloads . Serve nuts but they do not warm up . Service is attentive , WC clean

The boarding efficiency was good. A couple of the flight attendants did not seem in the best of moods. Overall it was a good experience.

Check in was a disaster. 90 minutes and only 2 economy check in desks open. Had to rush to catch the flight.

I couldnt go on this flight and lost all my money over 1,000 UK Pounds as my visa to Myanmar was not accepted :(

Everything you need to know for your flight from London to Udon Thani

Information on your arrival and departure airports

London (LHR)
Udon Thani (UTH)