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 April 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.

£491 Cheap Flights from London Heathrow Airport to Udon Thani in 2026

Q: What is the typical price of a round-trip flight between London Heathrow Airport and Udon Thani?

Prices are currently low for flights on this route. Typical prices usually range from £888 to £772. The lowest price recently found on this route was £491.

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Find the cheapest flights from London Heathrow Airport to Udon Thani

Round-trip

One-way

Cheap return flights

Enter your travel dates to find the best prices.

16:15 - 19:50

LHR

UTH

21h 35m

2 stops

20:20 - 07:30

UTH

LHR

41h 10m

2 stops

£491Multiple Airlines

Wed, 22 Apr - Wed, 6 May

14:45 - 19:50

LHR

UTH

23h 05m

2 stops

09:00 - 15:05

UTH

LHR

36h 05m

2 stops

£672Multiple Airlines

Fri, 29 May - Fri, 5 Jun

19:25 - 20:55

LHR

UTH

19h 30m

2 stops

21:25 - 14:05

UTH

LHR

22h 40m

2 stops

£701Multiple Airlines

Fri, 15 May - Fri, 22 May

09:00 - 20:55

LHR

UTH

29h 55m

2 stops

13:55 - 06:25

UTH

LHR

22h 30m

2 stops

£711Multiple Airlines

Wed, 6 May - Sat, 16 May

16:00 - 20:55

LHR

UTH

22h 55m

2 stops

08:40 - 07:30

UTH

LHR

28h 50m

2 stops

£736Multiple Airlines

Sat, 2 May - Sat, 16 May

21:55 - 08:10

LHR

UTH

28h 15m

2 stops

21:25 - 14:05

UTH

LHR

22h 40m

2 stops

£737Multiple Airlines

Sun, 3 May - Sat, 16 May

09:00 - 20:55

LHR

UTH

29h 55m

2 stops

21:25 - 14:05

UTH

LHR

22h 40m

2 stops

£738Multiple Airlines

Sat, 2 May - Sat, 16 May

09:30 - 15:50

LHR

UTH

24h 20m

3 stops

21:25 - 12:45

UTH

LHR

21h 20m

2 stops

£757Multiple Airlines

Fri, 15 May - Fri, 22 May

10:00 - 13:25

LHR

UTH

21h 25m

2 stops

13:55 - 06:55

UTH

LHR

23h 00m

2 stops

£771Gulf Air

Wed, 20 May - Sun, 24 May

10:00 - 13:25

LHR

UTH

21h 25m

2 stops

13:55 - 06:55

UTH

LHR

23h 00m

2 stops

£773Gulf Air

Wed, 20 May - Sun, 24 May

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

20 May

LHR10:00London Heathrow

21h 25m

2 stops

UTH13:25Udon Thani

24 May

UTH13:55Udon Thani

23h 00m

2 stops

LHR06:55London Heathrow

£771

Gulf Air

20 May

LHR10:00London Heathrow

21h 25m

2 stops

UTH13:25Udon Thani

24 May

UTH13:55Udon Thani

23h 00m

2 stops

LHR06:55London Heathrow

£773

Gulf Air

20 May

LHR10:00London Heathrow

21h 25m

2 stops

UTH13:25Udon Thani

24 May

UTH13:55Udon Thani

23h 00m

2 stops

LHR06:55London Heathrow

£833

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

22 Apr

LHR12:30London Heathrow

26h 25m

1 stop

UTH20:55Udon Thani

6 May

UTH21:25Udon Thani

27h 50m

1 stop

LHR19:15London Heathrow

£1,243

Thai Airways

29 May

LHR12:30London Heathrow

18h 55m

1 stop

UTH13:25Udon Thani

5 Jun

UTH21:25Udon Thani

15h 50m

1 stop

LHR07:15London Heathrow

£1,250

Thai Airways

15 May

LHR21:25London Heathrow

17h 30m

1 stop

UTH20:55Udon Thani

22 May

UTH13:55Udon Thani

23h 20m

1 stop

LHR07:15London Heathrow

£1,260

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

Wed 22/4

16:15-19:50

2 stops21h 35m

Udon Thani

Wed 6/5

20:20-07:30

2 stops41h 10m

£491

LondonUdon Thani

LHR - UTH

LHRUTH

London Heathrow

Fri 29/5

14:45-19:50

2 stops23h 05m

Udon Thani

Fri 5/6

09:00-15:05

2 stops36h 05m

£672

Fastest return journey

LondonUdon Thani

LHR - UTH

LHRUTH

London Heathrow

Fri 15/5

19:25-20:55

2 stops19h 30m

Udon Thani

Fri 22/5

21:25-14:05

2 stops22h 40m

£701

LondonUdon Thani

LHR - UTH

LHRUTH

London Heathrow

Wed 6/5

09:00-20:55

2 stops29h 55m

Udon Thani

Sat 16/5

13:55-06:25

2 stops22h 30m

£711

LondonUdon Thani

LHR - UTH

LHRUTH

London Heathrow

Sat 2/5

16:00-20:55

2 stops22h 55m

Udon Thani

Sat 16/5

08:40-07:30

2 stops28h 50m

£736

LondonUdon Thani

LHR - UTH

LHRUTH

London Heathrow

Sun 3/5

21:55-08:10

2 stops28h 15m

Udon Thani

Sat 16/5

21:25-14:05

2 stops22h 40m

£737

LondonUdon Thani

LHR - UTH

LHRUTH

London Heathrow

Sat 2/5

09:00-20:55

2 stops29h 55m

Udon Thani

Sat 16/5

21:25-14:05

2 stops22h 40m

£738

LondonUdon Thani

LHR - UTH

LHRUTH

London Heathrow

Fri 15/5

09:30-15:50

3 stops24h 20m

Udon Thani

Fri 22/5

21:25-12:45

2 stops21h 20m

£757

LondonUdon Thani

LHR - UTH

LHRUTH

London Heathrow

Wed 20/5

10:00-13:25

2 stops21h 25m

Udon Thani

Sun 24/5

13:55-06:55

2 stops23h 00m

£771

LondonUdon Thani

LHR - UTH

LHRUTH

London Heathrow

Wed 20/5

10:00-13:25

2 stops21h 25m

Udon Thani

Sun 24/5

13:55-06:55

2 stops23h 00m

£773

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 typical price of a round-trip flight between London Heathrow Airport and Udon Thani?

What is the cheapest month to fly to Udon Thani?

The cheapest month to fly to Udon Thani from London Heathrow Airport is in October. Flight prices, which tend to average around £768, are often lower during this time because this is during the off-season. If you don’t want to visit Udon Thani in October, then you should wait until September to fly from London Heathrow Airport, when ticket prices are also cheap, with an average price of £775.

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	23h 05m
Direct flights	None

The fastest flight from London Heathrow Airport to Udon Thani takes 23h 05m

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. 23h 05m 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 April 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 £720	Free Cancellation	Rating 7.8 395 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.