LHR - UTH

£531 Find Cheap Flights from London to Udon Thani

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 23/12. 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

KAYAK searches hundreds of travel sites at once for deals on flights to Udon Thani

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from London to Udon Thani, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from London to Udon Thani, as well as popular online travel agencies
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Everything you should know

Cheapest return fare
£630
Typical prices: £746-£805
Multiple Airlines
Tue 14/4Thu 28/5
LHR - UTH • 2 stops
Cheapest one-way flight
£531
Multiple Airlines
Tue 23/12
LHR - UTH • 3 stops
When to travel
October
Cheapest • 19% price drop
April
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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KAYAK searches hundreds of sites at once to find you the best travel deals.
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

Tue, 14 Apr - Thu, 28 May
Multiple Airlines Logo
16:25 - 19:50
LHR
-
UTH
21h 25m2 stops
Multiple Airlines Logo
16:45 - 21:40
UTH
-
LHR
34h 55m2 stops
£630Multiple Airlines
Sat, 17 Jan - Sat, 24 Jan
Multiple Airlines Logo
10:25 - 18:00
LHR
-
UTH
24h 35m2 stops
Multiple Airlines Logo
10:10 - 15:25
UTH
-
LHR
36h 15m2 stops
£637Multiple Airlines
Tue, 14 Apr - Thu, 28 May
Multiple Airlines Logo
17:50 - 19:50
LHR
-
UTH
20h 00m2 stops
Multiple Airlines Logo
14:30 - 10:00
UTH
-
LHR
25h 30m3 stops
£779Multiple Airlines
Tue, 14 Apr - Thu, 28 May
Multiple Airlines Logo
21:35 - 19:50
LHR
-
UTH
16h 15m1 stop
Multiple Airlines Logo
09:00 - 19:20
UTH
-
LHR
16h 20m1 stop
£791Multiple Airlines
Sat, 17 Jan - Sat, 24 Jan
Multiple Airlines Logo
21:00 - 08:10
LHR
-
UTH
28h 10m2 stops
Multiple Airlines Logo
18:30 - 06:40
UTH
-
LHR
19h 10m1 stop
£795Multiple Airlines
Sat, 17 Jan - Sat, 24 Jan
Multiple Airlines Logo
21:20 - 20:20
LHR
-
UTH
16h 00m1 stop
Multiple Airlines Logo
20:50 - 19:05
UTH
-
LHR
29h 15m1 stop
£801Multiple Airlines
Tue, 14 Apr - Thu, 28 May
Multiple Airlines Logo
10:00 - 13:25
LHR
-
UTH
21h 25m2 stops
Multiple Airlines Logo
21:25 - 07:15
UTH
-
LHR
15h 50m1 stop
£822Multiple Airlines
Mon, 5 Jan - Sat, 10 Jan
Multiple Airlines Logo
08:50 - 13:40
LHR
-
UTH
21h 50m2 stops
Multiple Airlines Logo
14:10 - 06:40
UTH
-
LHR
23h 30m2 stops
£893Multiple Airlines
Mon, 5 Jan - Sat, 10 Jan
Multiple Airlines Logo
07:00 - 19:30
LHR
-
UTH
29h 30m3 stops
Multiple Airlines Logo
20:00 - 17:05
UTH
-
LHR
28h 05m3 stops
£1,085Multiple Airlines
Mon, 5 Jan - Sat, 10 Jan
Multiple Airlines Logo
08:45 - 17:15
LHR
-
UTH
25h 30m2 stops
Multiple Airlines Logo
20:00 - 17:05
UTH
-
LHR
28h 05m3 stops
£1,114Multiple Airlines
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.

How much is a return flight from London Heathrow Airport to Udon Thani?

This analysis is based on the cheapest return trip price found on KAYAK in the last 12 months by searching for a flight from London Heathrow Airport to Udon Thani departing in April.

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 October, where tickets cost £726 (return) on average. On the other hand, the most expensive months are December and August, where the average cost of round-trip tickets is £2,056 and £900 respectively.

Find deals

Good to know - Cheap tickets from London to Udon Thani

Low seasonJuly
Cheapest flight£531
Best time to beat the crowds (10% less expensive on average)
Most popular time to fly and prices are also 16% 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 3 days, the lowest price for a flight from London Heathrow Airport to Udon Thani was £531 for a one-way ticket and £630 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.
7.8
Thai AirwaysOverall score based on 363 reviews
7.8Boarding
8.3Crew
7.5Comfort
7.3Food
6.9Entertainment
Airline reviews

Thai Royal First is very good. Easy check in , Private room in the first class lounge and escort from ticketing to the plane. Once on board crew was very polite, food was outstanding, and the ride was smooth as silk. Restrooms were especially clean. Great Experience

10.0 Excellentmichael, Dec 2025
BKK - NRT
Read more Thai Airways reviews

Thai Royal First is very good. Easy check in , Private room in the first class lounge and escort from ticketing to the plane. Once on board crew was very polite, food was outstanding, and the ride was smooth as silk. Restrooms were especially clean. Great Experience

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.

Need to improve on punctuality. My flight was delayed by 1 hour.

Seats were uncomfortable and the vegetarian meal was awful. Some of the entertainment didn't work.

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😉

The flight was mostly fine, but I really wished that seats had an outlet to charge devices considering the length of the flight (15 hours there and 14 hours back).

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

Terrible. It’s like they are stuck in the dark ages. I brought a standard carry on suitcase and a back pack - I was told I could only carry on 7kg per bag - in business class, I was forced to remove articles from the suitcase and put them into my backpack! That’s the most ridiculous thing I’ve ever encountered in all my years of flying. The two bags weighed the same amount but one could not be more than 7kg. Holy cow.

They used Thai Smile plane, which is a smaller model and used to service only domestic flights; hence, the plane is small and quite compact. No entertainment on the flight. While boarding was delayed, it was done in a quick manner.

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)