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 September 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.

£626 Cheap Flights from London Heathrow Airport to Udon Thani in 2026

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.

12:35 - 17:15LHR London Heathrow-UTH Udon Thani

22h 40m2 stops Xiamen Gaoqi Intl Bangkok Suvarnabhumi

11:55 - 07:30UTH Udon Thani-LHR London Heathrow

25h 35m2 stops Bangkok Suvarnabhumi New Delhi Indira Gandhi Intl

£626Multiple Airlines

Sun, 20 Sep - Mon, 28 Sep

06:30 - 11:25LHR London Heathrow-UTH Udon Thani

21h 55m3 stops Warsaw Frederic Chopin Sharjah Bangkok Suvarnabhumi

10:10 - 07:30UTH Udon Thani-LHR London Heathrow

28h 20m2 stops Bangkok Suvarnabhumi Riyadh King Khaled Intl

£689Multiple Airlines

Thu, 5 Nov - Thu, 4 Feb

09:30 - 13:25LHR London Heathrow-UTH Udon Thani

21h 55m2 stops Doha Hamad Intl Bangkok Suvarnabhumi

20:00 - 14:00UTH Udon Thani-LHR London Heathrow

25h 00m2 stops Bangkok Suvarnabhumi Doha Hamad Intl

£695Multiple Airlines

Tue, 13 Oct - Fri, 13 Nov

09:30 - 17:00LHR London Heathrow-UTH Udon Thani

24h 30m2 stops Riyadh King Khaled Intl Bangkok Suvarnabhumi

10:10 - 07:30UTH Udon Thani-LHR London Heathrow

28h 20m2 stops Bangkok Suvarnabhumi Riyadh King Khaled Intl

£707Multiple Airlines

Tue, 17 Nov - Thu, 14 Jan

16:00 - 20:55LHR London Heathrow-UTH Udon Thani

22h 55m2 stops Doha Hamad Intl Bangkok Suvarnabhumi

20:00 - 14:00UTH Udon Thani-LHR London Heathrow

25h 00m2 stops Bangkok Suvarnabhumi Doha Hamad Intl

£715Multiple Airlines

Mon, 12 Oct - Fri, 13 Nov

06:30 - 11:25LHR London Heathrow-UTH Udon Thani

21h 55m3 stops Warsaw Frederic Chopin Sharjah Bangkok Suvarnabhumi

17:30 - 13:45UTH Udon Thani-LHR London Heathrow

27h 15m3 stops Bangkok Don Mueang Intl Bengaluru Intl Kuwait City

£715Multiple Airlines

Thu, 5 Nov - Thu, 4 Feb

16:00 - 20:55LHR London Heathrow-UTH Udon Thani

22h 55m2 stops Doha Hamad Intl Bangkok Suvarnabhumi

20:00 - 14:00UTH Udon Thani-LHR London Heathrow

25h 00m2 stops Bangkok Suvarnabhumi Doha Hamad Intl

£716Multiple Airlines

Mon, 12 Oct - Fri, 13 Nov

09:25 - 13:40LHR London Heathrow-UTH Udon Thani

21h 15m2 stops Doha Hamad Intl Bangkok Suvarnabhumi

20:00 - 13:25UTH Udon Thani-LHR London Heathrow

24h 25m2 stops Bangkok Suvarnabhumi Doha Hamad Intl

£717Multiple Airlines

Thu, 5 Nov - Thu, 4 Feb

21:35 - 08:00LHR London Heathrow-UTH Udon Thani

27h 25m1 stop Bangkok Suvarnabhumi

08:30 - 19:35UTH Udon Thani-LHR London Heathrow

18h 05m1 stop Bangkok Suvarnabhumi

£878Thai Airways

Tue, 17 Nov - Thu, 14 Jan

21:25 - 20:55LHR London Heathrow-UTH Udon Thani

17h 30m1 stop Bangkok Suvarnabhumi

14:10 - 19:35UTH Udon Thani-LHR London Heathrow

36h 25m1 stop Bangkok Suvarnabhumi

£889Thai Airways

Thu, 15 Oct - Sat, 31 Oct

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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

17 Nov

LHR21:35London Heathrow

27h 25m

1 stop

UTH08:00Udon Thani

14 Jan

UTH08:30Udon Thani

18h 05m

1 stop

LHR19:35London Heathrow

£878

Thai Airways

15 Oct

LHR21:25London Heathrow

17h 30m

1 stop

UTH20:55Udon Thani

31 Oct

UTH14:10Udon Thani

36h 25m

1 stop

LHR19:35London Heathrow

£889

Thai Airways

19 Oct

LHR12:30London Heathrow

18h 55m

1 stop

UTH13:25Udon Thani

26 Oct

UTH08:30Udon Thani

18h 05m

1 stop

LHR19:35London Heathrow

£895

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

13 Sept

LHR10:00London Heathrow

21h 25m

2 stops

UTH13:25Udon Thani

15 Sept

UTH13:55Udon Thani

23h 00m

2 stops

LHR06:55London Heathrow

£915

Gulf Air

13 Sept

LHR10:00London Heathrow

21h 25m

2 stops

UTH13:25Udon Thani

15 Sept

UTH13:55Udon Thani

23h 00m

2 stops

LHR06:55London Heathrow

£917

Gulf Air

13 Sept

LHR10:00London Heathrow

21h 25m

2 stops

UTH13:25Udon Thani

15 Sept

UTH13:55Udon Thani

23h 00m

2 stops

LHR06:55London Heathrow

£1,028

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 London Heathrow - UTH Udon Thani

LHRUTH

London Heathrow

Sun 20/9

12:35-17:15

2 stops22h 40m

Udon Thani

Mon 28/9

11:55-07:30

2 stops25h 35m

£626

LondonUdon Thani

LHR London Heathrow - UTH Udon Thani

LHRUTH

London Heathrow

Thu 5/11

06:30-11:25

3 stops21h 55m

Udon Thani

Thu 4/2

10:10-07:30

2 stops28h 20m

£689

LondonUdon Thani

LHR London Heathrow - UTH Udon Thani

LHRUTH

London Heathrow

Tue 13/10

09:30-13:25

2 stops21h 55m

Udon Thani

Fri 13/11

20:00-14:00

2 stops25h 00m

£695

LondonUdon Thani

LHR London Heathrow - UTH Udon Thani

LHRUTH

London Heathrow

Tue 17/11

09:30-17:00

2 stops24h 30m

Udon Thani

Thu 14/1

10:10-07:30

2 stops28h 20m

£707

LondonUdon Thani

LHR London Heathrow - UTH Udon Thani

LHRUTH

London Heathrow

Mon 12/10

16:00-20:55

2 stops22h 55m

Udon Thani

Fri 13/11

20:00-14:00

2 stops25h 00m

£715

LondonUdon Thani

LHR London Heathrow - UTH Udon Thani

LHRUTH

London Heathrow

Thu 5/11

06:30-11:25

3 stops21h 55m

Udon Thani

Thu 4/2

17:30-13:45

3 stops27h 15m

£715

LondonUdon Thani

LHR London Heathrow - UTH Udon Thani

LHRUTH

London Heathrow

Mon 12/10

16:00-20:55

2 stops22h 55m

Udon Thani

Fri 13/11

20:00-14:00

2 stops25h 00m

£716

LondonUdon Thani

LHR London Heathrow - UTH Udon Thani

LHRUTH

London Heathrow

Thu 5/11

09:25-13:40

2 stops21h 15m

Udon Thani

Thu 4/2

20:00-13:25

2 stops24h 25m

£717

Fastest return journey

LondonUdon Thani

LHR London Heathrow - UTH Udon Thani

LHRUTH

London Heathrow

Tue 17/11

21:35-08:00

1 stop27h 25m

Udon Thani

Thu 14/1

08:30-19:35

1 stop18h 05m

£878

LondonUdon Thani

LHR London Heathrow - UTH Udon Thani

LHRUTH

London Heathrow

Thu 15/10

21:25-20:55

1 stop17h 30m

Udon Thani

Sat 31/10

14:10-19:35

1 stop36h 25m

£889

Flights are sorted by cheapest return flights first.

Sorted 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 August to fly from London Heathrow Airport, when ticket prices are also cheap, with an average price of £0.

Can stopping save me money on London Heathrow Airport to Udon Thani flights?

You could potentially save up to 34% on your flight if you consider stops on a London Heathrow Airport to Udon Thani flight.

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

Best price found	£626
Fastest flight time	21h 25m
Direct flights	None

The best flight deal from London Heathrow Airport to Udon Thani found on momondo in the last 72 hours is £626

The fastest flight from London Heathrow Airport to Udon Thani takes 21h 25m

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. 21h 25m 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 September 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 £738	Free Cancellation	Rating 7.9 418 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.