When did momondo last update prices for flights from London Heathrow Airport to Udon Thani Airport?

Prices for flights from London Heathrow Airport to Udon Thani Airport were last updated today.

How many operators does momondo search for flights from London Heathrow Airport to Udon Thani Airport?

As of July 2026, there is 1 operator available to choose from for flights from London Heathrow Airport to Udon Thani Airport.

How old do you have to be to fly from London Heathrow Airport to Udon Thani Airport?

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from London Heathrow Airport to Udon Thani Airport.

What documentation or ID do you need to fly to Udon Thani Airport?

The required travel and health documents for your Udon Thani Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Udon Thani Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

£317 Cheap Flights from London Heathrow Airport to Udon Thani in 2026

Voted winner of Europe's Best Travel App 2023

Find the cheapest flights from London Heathrow Airport to Udon Thani

Return

One-way

Cheap return flights

Enter your travel dates to find the best prices.

22:05 - 13:25

LHR

UTH

33h 20m

2 stops

13:55 - 06:55

UTH

LHR

23h 00m

2 stops

£655Gulf Air

Tue, 8 Sep - Mon, 28 Sep

21:50 - 13:40

LHR

UTH

32h 50m

2 stops

14:10 - 06:35

UTH

LHR

23h 25m

2 stops

£771Gulf Air

Fri, 13 Nov - Tue, 17 Nov

21:50 - 13:40

LHR

UTH

32h 50m

2 stops

14:10 - 06:35

UTH

LHR

23h 25m

2 stops

£788Gulf Air

Fri, 13 Nov - Tue, 17 Nov

22:05 - 13:25

LHR

UTH

33h 20m

2 stops

13:55 - 06:55

UTH

LHR

23h 00m

2 stops

£797Gulf Air

Wed, 9 Sep - Sun, 13 Sep

22:05 - 13:25

LHR

UTH

33h 20m

2 stops

13:55 - 15:20

UTH

LHR

31h 25m

2 stops

£798Gulf Air

Wed, 9 Sep - Sun, 13 Sep

22:05 - 13:25

LHR

UTH

33h 20m

2 stops

21:25 - 07:15

UTH

LHR

15h 50m

1 stop

£808Multiple Airlines

Tue, 8 Sep - Mon, 28 Sep

22:05 - 13:25

LHR

UTH

33h 20m

2 stops

13:55 - 06:55

UTH

LHR

23h 00m

2 stops

£814Gulf Air

Wed, 9 Sep - Sun, 13 Sep

21:35 - 13:25

LHR

UTH

33h 50m

1 stop

13:55 - 19:20

UTH

LHR

35h 25m

1 stop

£873Multiple Airlines

Thu, 3 Sep - Sun, 6 Sep

22:40 - 08:10

LHR

UTH

27h 30m

2 stops

08:40 - 19:15

UTH

LHR

16h 35m

1 stop

£876Multiple Airlines

Thu, 3 Sep - Sun, 6 Sep

12:10 - 14:25

LHR

UTH

20h 15m

2 stops

10:15 - 08:15

UTH

LHR

28h 00m

2 stops

£894Multiple Airlines

Sun, 23 Aug - Sun, 30 Aug

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Thai Airways flights from London Heathrow Airport to Udon Thani

Our best Thai Airways deals on London Heathrow Airport to Udon Thani flight tickets

Thai Airways

6 Nov

LHR21:35London Heathrow

15h 50m

1 stop

UTH20:25Udon Thani

27 Nov

UTH20:55Udon Thani

16h 45m

1 stop

LHR06:40London Heathrow

£985

Thai Airways

31 Jul

LHR21:25London Heathrow

28h 45m

1 stop

UTH08:10Udon Thani

21 Aug

UTH21:25Udon Thani

27h 50m

1 stop

LHR19:15London Heathrow

£1,072

Thai Airways

5 Aug

LHR21:25London Heathrow

17h 30m

1 stop

UTH20:55Udon Thani

26 Aug

UTH08:40Udon Thani

16h 35m

1 stop

LHR19:15London Heathrow

£1,073

Gulf Air flights from London Heathrow Airport to Udon Thani

Our best Gulf Air deals on London Heathrow Airport to Udon Thani flight tickets

Gulf Air

8 Sept

LHR22:05London Heathrow

33h 20m

2 stops

UTH13:25Udon Thani

28 Sept

UTH13:55Udon Thani

23h 00m

2 stops

LHR06:55London Heathrow

£655

Gulf Air

13 Nov

LHR21:50London Heathrow

32h 50m

2 stops

UTH13:40Udon Thani

17 Nov

UTH14:10Udon Thani

23h 25m

2 stops

LHR06:35London Heathrow

£771

Gulf Air

13 Nov

LHR21:50London Heathrow

32h 50m

2 stops

UTH13:40Udon Thani

17 Nov

UTH14:10Udon Thani

23h 25m

2 stops

LHR06:35London Heathrow

£788

momondo Fare Finder

Use the filters below to find and compare flights from London Heathrow Airport to Udon Thani that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonUdon Thani

LHR - UTH

LHRUTH

London Heathrow

Tue 8/9

22:05-13:25

2 stops33h 20m

Udon Thani

Mon 28/9

13:55-06:55

2 stops23h 00m

£655

LondonUdon Thani

LHR - UTH

LHRUTH

London Heathrow

Fri 13/11

21:50-13:40

2 stops32h 50m

Udon Thani

Tue 17/11

14:10-06:35

2 stops23h 25m

£771

LondonUdon Thani

LHR - UTH

LHRUTH

London Heathrow

Fri 13/11

21:50-13:40

2 stops32h 50m

Udon Thani

Tue 17/11

14:10-06:35

2 stops23h 25m

£788

LondonUdon Thani

LHR - UTH

LHRUTH

London Heathrow

Wed 9/9

22:05-13:25

2 stops33h 20m

Udon Thani

Sun 13/9

13:55-06:55

2 stops23h 00m

£797

LondonUdon Thani

LHR - UTH

LHRUTH

London Heathrow

Wed 9/9

22:05-13:25

2 stops33h 20m

Udon Thani

Sun 13/9

13:55-15:20

2 stops31h 25m

£798

LondonUdon Thani

LHR - UTH

LHRUTH

London Heathrow

Tue 8/9

22:05-13:25

2 stops33h 20m

Udon Thani

Mon 28/9

21:25-07:15

1 stop15h 50m

£808

LondonUdon Thani

LHR - UTH

LHRUTH

London Heathrow

Wed 9/9

22:05-13:25

2 stops33h 20m

Udon Thani

Sun 13/9

13:55-06:55

2 stops23h 00m

£814

LondonUdon Thani

LHR - UTH

LHRUTH

London Heathrow

Thu 3/9

21:35-13:25

1 stop33h 50m

Udon Thani

Sun 6/9

13:55-19:20

1 stop35h 25m

£873

Fastest return journey

LondonUdon Thani

LHR - UTH

LHRUTH

London Heathrow

Thu 3/9

22:40-08:10

2 stops27h 30m

Udon Thani

Sun 6/9

08:40-19:15

1 stop16h 35m

£876

LondonUdon Thani

LHR - UTH

LHRUTH

London Heathrow

Sun 23/8

12:10-14:25

2 stops20h 15m

Udon Thani

Sun 30/8

10:15-08:15

2 stops28h 00m

£894

Flights are sorted by cheapest return flights first.

Showing 1-10 of 13 resultsSorted by cheapest first

How to get the cheapest flight ticket from London Heathrow Airport to Udon Thani

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Udon Thani?

The cheapest month to fly to Udon Thani from London Heathrow Airport is in September. Flight prices, which tend to average around £0, are often lower during this time because this is during the off-season. If you don’t want to visit Udon Thani in September, then you should wait until June to fly from London Heathrow Airport, when ticket prices are also cheap, with an average price of £0.

When to book flights from London Heathrow Airport to Udon Thani

Are you open to changing your travel dates? Check out the ideal times to fly from London Heathrow Airport to Udon Thani according to our flight data. Find out which month and days have the cheapest flights.

Estimated return price

Cheap London Heathrow Airport to Udon Thani (LHR to UTH) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from London Heathrow Airport to Udon Thani

Fastest flight time	20h 15m
Direct flights	None

The fastest flight from London Heathrow Airport to Udon Thani takes 20h 15m

There are no direct flights from London Heathrow Airport to Udon Thani. There are no popular flight routes from London Heathrow Airport to Udon Thani.

Search flight deals

Frequently asked questions about flying from London Heathrow Airport to Udon Thani

How far is London Heathrow to Udon Thani by plane?
There are 5825.8 mi between London Heathrow and Udon Thani. 20h 15m is a normal flight duration for this route.
When did momondo last update prices for flights from London Heathrow Airport to Udon Thani Airport?
Prices for flights from London Heathrow Airport to Udon Thani Airport were last updated today.
How many operators does momondo search for flights from London Heathrow Airport to Udon Thani Airport?
As of July 2026, there is 1 operator available to choose from for flights from London Heathrow Airport to Udon Thani Airport.
How old do you have to be to fly from London Heathrow Airport to Udon Thani Airport?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from London Heathrow Airport to Udon Thani Airport.
What documentation or ID do you need to fly to Udon Thani Airport?
The required travel and health documents for your Udon Thani Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Udon Thani Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular airline from London Heathrow Airport to Udon Thani?
Based on momondo bookings for flights between London Heathrow Airport and Udon Thani, the leading airline is Thai Airways, making up 100% of the total bookings.

Best airlines flying from London Heathrow Airport to Udon Thani

Compare and see reviews for airlines that fly from London Heathrow Airport to Udon Thani with momondo

Airline	Rating	Free Cancellation	Price
Thai Airways	PriceFrom £744	Free Cancellation	Rating 7.9 409 reviews		Search Thai Airways flights

Why use momondo?

Why should I use momondo to find a flight deal from London to Udon Thani?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Udon Thani from London.

Can I find flights from London to Udon Thani with flexible booking policies on momondo?

momondo does allow users to show only those flights to Udon Thani from London which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from London to Udon Thani?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from London to Udon Thani.

I’m not ready to book a flight from London to Udon Thani right now. Can momondo alert me if prices change?

If you are not ready to book a flight from London to Udon Thani now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Udon Thani and let you know when they change.