What is the cheapest airline that flies from London to Udon Thani?

Thai Airways is the most popular carrier operating from London to Udon Thani

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

Prices for flights from London to Udon Thani Airport are updated daily.

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

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

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

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from London to Udon Thani Airport.

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

The travel and health documents you'll need for your trip to Udon Thani Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Udon Thani Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

£372 Cheap Flights from London to Udon Thani in 2026

Voted winner of Europe's Best Travel App 2023

Find the cheapest flights from London to Udon Thani

Return

One-way

Last minute

Cheap return flights

Enter your travel dates to find the best prices.

10:50 - 13:25

LHR

UTH

20h 35m

2 stops

14:10 - 14:00

UTH

LHR

30h 50m

2 stops

£682Multiple Airlines

Wed, 21 Oct - Wed, 4 Nov

15:05 - 20:55

LHR

UTH

23h 50m

2 stops

20:55 - 17:25

UTH

LHR

27h 30m

2 stops

£685Multiple Airlines

Tue, 13 Oct - Tue, 17 Nov

21:50 - 13:40

LHR

UTH

32h 50m

2 stops

14:10 - 06:35

UTH

LHR

23h 25m

2 stops

£760Gulf 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

£782Gulf Air

Fri, 13 Nov - Tue, 17 Nov

09:30 - 13:40

LHR

UTH

21h 10m

2 stops

14:10 - 14:45

UTH

LHR

31h 35m

2 stops

£793Gulf Air

Fri, 13 Nov - Tue, 17 Nov

09:30 - 13:40

LHR

UTH

21h 10m

2 stops

14:10 - 06:35

UTH

LHR

23h 25m

2 stops

£800Gulf Air

Fri, 13 Nov - Tue, 17 Nov

12:35 - 19:50

LHR

UTH

25h 15m

2 stops

20:55 - 19:35

UTH

LHR

29h 40m

1 stop

£842Multiple Airlines

Wed, 21 Oct - Wed, 4 Nov

08:40 - 20:55

LHR

UTH

30h 15m

2 stops

08:30 - 08:15

UTH

LHR

30h 45m

3 stops

£849Multiple Airlines

Wed, 21 Oct - Wed, 4 Nov

12:30 - 09:45

LHR

UTH

15h 15m

1 stop

15:00 - 16:20

UTH

LHR

32h 20m

2 stops

£860Multiple Airlines

Tue, 13 Oct - Tue, 17 Nov

21:35 - 20:55

LHR

UTH

17h 20m

1 stop

08:30 - 19:05

UTH

LHR

17h 35m

1 stop

£895Multiple Airlines

Wed, 21 Oct - Wed, 4 Nov

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Gulf Air flights from London to Udon Thani

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

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

£760

Gulf Air

29 Jun

LHR22:05London Heathrow

33h 20m

2 stops

UTH13:25Udon Thani

8 Jul

UTH13:55Udon Thani

23h 00m

2 stops

LHR06:55London Heathrow

£782

Gulf Air

13 Nov

LHR09:30London Heathrow

21h 10m

2 stops

UTH13:40Udon Thani

17 Nov

UTH14:10Udon Thani

31h 35m

2 stops

LHR14:45London Heathrow

£793

Thai Airways flights from London to Udon Thani

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

Thai Airways

31 Jul

LHR21:25London Heathrow

17h 30m

1 stop

UTH20:55Udon Thani

21 Aug

UTH08:40Udon Thani

16h 35m

1 stop

LHR19:15London Heathrow

£1,103

Thai Airways

31 Jul

LHR12:30London Heathrow

18h 55m

1 stop

UTH13:25Udon Thani

21 Aug

UTH08:40Udon Thani

16h 35m

1 stop

LHR19:15London Heathrow

£1,104

Thai Airways

31 Jul

LHR21:25London Heathrow

17h 30m

1 stop

UTH20:55Udon Thani

21 Aug

UTH08:40Udon Thani

16h 35m

1 stop

LHR19:15London Heathrow

£1,162

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonUdon Thani

LHR - UTH

LHRUTH

London Heathrow

Wed 21/10

10:50-13:25

2 stops20h 35m

Udon Thani

Wed 4/11

14:10-14:00

2 stops30h 50m

£682

LondonUdon Thani

LHR - UTH

LHRUTH

London Heathrow

Tue 13/10

15:05-20:55

2 stops23h 50m

Udon Thani

Tue 17/11

20:55-17:25

2 stops27h 30m

£685

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

£760

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

£782

LondonUdon Thani

LHR - UTH

LHRUTH

London Heathrow

Fri 13/11

09:30-13:40

2 stops21h 10m

Udon Thani

Tue 17/11

14:10-14:45

2 stops31h 35m

£793

LondonUdon Thani

LHR - UTH

LHRUTH

London Heathrow

Fri 13/11

09:30-13:40

2 stops21h 10m

Udon Thani

Tue 17/11

14:10-06:35

2 stops23h 25m

£800

LondonUdon Thani

LHR - UTH

LHRUTH

London Heathrow

Wed 21/10

12:35-19:50

2 stops25h 15m

Udon Thani

Wed 4/11

20:55-19:35

1 stop29h 40m

£842

LondonUdon Thani

LHR - UTH

LHRUTH

London Heathrow

Wed 21/10

08:40-20:55

2 stops30h 15m

Udon Thani

Wed 4/11

08:30-08:15

3 stops30h 45m

£849

LondonUdon Thani

LHR - UTH

LHRUTH

London Heathrow

Tue 13/10

12:30-09:45

1 stop15h 15m

Udon Thani

Tue 17/11

15:00-16:20

2 stops32h 20m

£860

Fastest return journey

LondonUdon Thani

LHR - UTH

LHRUTH

London Heathrow

Wed 21/10

21:35-20:55

1 stop17h 20m

Udon Thani

Wed 4/11

08:30-19:05

1 stop17h 35m

£895

Flights are sorted by cheapest return flights first.

Showing 1-10 of 15 resultsSorted by cheapest first

How to get the cheapest flight ticket from London 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

Prices

Airlines

What is the cheapest month to fly to Udon Thani?

The cheapest month to fly to Udon Thani from London 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, when ticket prices are also cheap, with an average price of £0.

When to book flights from London to Udon Thani

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

Estimated return price

Cheap London to Udon Thani (LON to UTH) flight deals and tips

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

Fastest flight time	20h 35m
Direct flights	None

The fastest flight from London to Udon Thani takes 20h 35m

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

Search flight deals

Frequently asked questions about flying from London to Udon Thani

How far is London to Udon Thani by plane?
A flight from London to Udon Thani will travel around 5811.8 mi. In terms of flight time, this usually takes a little over 20h 35m.
When did momondo last update prices for flights from London to Udon Thani Airport?
Prices for flights from London to Udon Thani Airport are updated daily.
How many operators does momondo search for flights from London to Udon Thani Airport?
As of June 2026, there is 1 operator available to choose from for flights from London to Udon Thani Airport.
How old do you have to be to fly from London to Udon Thani Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from London to Udon Thani Airport.
What documentation or ID do you need to fly to Udon Thani Airport?
The travel and health documents you'll need for your trip to Udon Thani Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Udon Thani Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular airline from London to Udon Thani?
Based on momondo bookings for flights between London and Udon Thani, the leading airline is Thai Airways, making up 100% of the total bookings.

Best airlines flying from London to Udon Thani

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

Airline	Rating	Free Cancellation	Price
Thai Airways	PriceFrom £754	Free Cancellation	Rating 7.9 407 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?

Yes. All flights to Udon Thani from London on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

momondo provides multiple filters to help you find the best flight to Udon Thani from London. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Yes momondo offers price alerts on flights to Udon Thani from London. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.