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

Gulf Air 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 August 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.

£337 Cheap Flights from London to Udon Thani in 2026

Find the cheapest flights from London to Udon Thani

Return

One-way

Cheap return flights

Enter your travel dates to find the best prices.

09:30 - 17:15LHR London Heathrow-UTH Udon Thani

25h 45m2 stops Abu Dhabi Zayed Intl Bangkok Suvarnabhumi

14:55 - 12:45UTH Udon Thani-LHR London Heathrow

27h 50m2 stops Bangkok Suvarnabhumi Abu Dhabi Zayed Intl

£622Multiple Airlines

Sat, 12 Sep - Sun, 27 Sep

09:30 - 17:15LHR London Heathrow-UTH Udon Thani

25h 45m2 stops Abu Dhabi Zayed Intl Bangkok Suvarnabhumi

10:10 - 14:30UTH Udon Thani-LHR London Heathrow

35h 20m2 stops Bangkok Suvarnabhumi Abu Dhabi Zayed Intl

£653Multiple Airlines

Wed, 14 Oct - Fri, 30 Oct

22:05 - 13:25LHR London Heathrow-UTH Udon Thani

33h 20m2 stops Manama Bahrain Intl Bangkok Suvarnabhumi

13:55 - 15:20UTH Udon Thani-LHR London Heathrow

31h 25m2 stops Bangkok Suvarnabhumi Manama Bahrain Intl

£653Gulf Air

Mon, 28 Sep - Mon, 5 Oct

10:00 - 13:25LHR London Heathrow-UTH Udon Thani

21h 25m2 stops Manama Bahrain Intl Bangkok Suvarnabhumi

13:55 - 15:20UTH Udon Thani-LHR London Heathrow

31h 25m2 stops Bangkok Suvarnabhumi Manama Bahrain Intl

£673Gulf Air

Fri, 25 Sep - Fri, 2 Oct

09:30 - 17:15LHR London Heathrow-UTH Udon Thani

25h 45m2 stops Abu Dhabi Zayed Intl Bangkok Suvarnabhumi

10:10 - 14:30UTH Udon Thani-LHR London Heathrow

35h 20m2 stops Bangkok Suvarnabhumi Abu Dhabi Zayed Intl

£674Multiple Airlines

Wed, 14 Oct - Fri, 30 Oct

10:00 - 13:25LHR London Heathrow-UTH Udon Thani

21h 25m2 stops Manama Bahrain Intl Bangkok Suvarnabhumi

13:55 - 15:20UTH Udon Thani-LHR London Heathrow

31h 25m2 stops Bangkok Suvarnabhumi Manama Bahrain Intl

£689Gulf Air

Thu, 10 Sep - Mon, 14 Sep

22:05 - 13:25LHR London Heathrow-UTH Udon Thani

33h 20m2 stops Manama Bahrain Intl Bangkok Suvarnabhumi

13:55 - 06:55UTH Udon Thani-LHR London Heathrow

23h 00m2 stops Bangkok Suvarnabhumi Manama Bahrain Intl

£689Gulf Air

Thu, 10 Sep - Mon, 14 Sep

10:00 - 13:25LHR London Heathrow-UTH Udon Thani

21h 25m2 stops Manama Bahrain Intl Bangkok Suvarnabhumi

13:55 - 15:20UTH Udon Thani-LHR London Heathrow

31h 25m2 stops Bangkok Suvarnabhumi Manama Bahrain Intl

£690Gulf Air

Thu, 10 Sep - Mon, 14 Sep

12:30 - 13:25LHR London Heathrow-UTH Udon Thani

18h 55m1 stop Bangkok Suvarnabhumi

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

18h 05m1 stop Bangkok Suvarnabhumi

£896Thai Airways

Thu, 15 Oct - Sat, 31 Oct

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

17h 30m1 stop Bangkok Suvarnabhumi

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

18h 05m1 stop Bangkok Suvarnabhumi

£896Thai Airways

Wed, 14 Oct - Sat, 31 Oct

Save money when you book flights with momondo

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customise your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Thai Airways flights from London to Udon Thani

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

Thai Airways

14 Oct

LHR21:25London Heathrow

17h 30m

1 stop

UTH20:55Udon Thani

31 Oct

UTH08:30Udon Thani

18h 05m

1 stop

LHR19:35London Heathrow

£896

Thai Airways

13 Oct

LHR21:25London Heathrow

17h 30m

1 stop

UTH20:55Udon Thani

30 Oct

UTH08:30Udon Thani

18h 05m

1 stop

LHR19:35London Heathrow

£907

Thai Airways

14 Oct

LHR21:25London Heathrow

28h 45m

1 stop

UTH08:10Udon Thani

30 Oct

UTH08:30Udon Thani

18h 05m

1 stop

LHR19:35London Heathrow

£918

Gulf Air flights from London to Udon Thani

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

Gulf Air

28 Sept

LHR22:05London Heathrow

33h 20m

2 stops

UTH13:25Udon Thani

5 Oct

UTH13:55Udon Thani

31h 25m

2 stops

LHR15:20London Heathrow

£653

Gulf Air

25 Sept

LHR10:00London Heathrow

21h 25m

2 stops

UTH13:25Udon Thani

2 Oct

UTH13:55Udon Thani

31h 25m

2 stops

LHR15:20London Heathrow

£673

Gulf Air

10 Sept

LHR22:05London Heathrow

33h 20m

2 stops

UTH13:25Udon Thani

14 Sept

UTH13:55Udon Thani

23h 00m

2 stops

LHR06:55London Heathrow

£689

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonUdon Thani

LHR London Heathrow - UTH Udon Thani

LHRUTH

London Heathrow

Sat 12/9

09:30-17:15

2 stops25h 45m

Udon Thani

Sun 27/9

14:55-12:45

2 stops27h 50m

£622

LondonUdon Thani

LHR London Heathrow - UTH Udon Thani

LHRUTH

London Heathrow

Wed 14/10

09:30-17:15

2 stops25h 45m

Udon Thani

Fri 30/10

10:10-14:30

2 stops35h 20m

£653

LondonUdon Thani

LHR London Heathrow - UTH Udon Thani

LHRUTH

London Heathrow

Mon 28/9

22:05-13:25

2 stops33h 20m

Udon Thani

Mon 5/10

13:55-15:20

2 stops31h 25m

£653

LondonUdon Thani

LHR London Heathrow - UTH Udon Thani

LHRUTH

London Heathrow

Fri 25/9

10:00-13:25

2 stops21h 25m

Udon Thani

Fri 2/10

13:55-15:20

2 stops31h 25m

£673

LondonUdon Thani

LHR London Heathrow - UTH Udon Thani

LHRUTH

London Heathrow

Wed 14/10

09:30-17:15

2 stops25h 45m

Udon Thani

Fri 30/10

10:10-14:30

2 stops35h 20m

£674

LondonUdon Thani

LHR London Heathrow - UTH Udon Thani

LHRUTH

London Heathrow

Thu 10/9

10:00-13:25

2 stops21h 25m

Udon Thani

Mon 14/9

13:55-15:20

2 stops31h 25m

£689

LondonUdon Thani

LHR London Heathrow - UTH Udon Thani

LHRUTH

London Heathrow

Thu 10/9

22:05-13:25

2 stops33h 20m

Udon Thani

Mon 14/9

13:55-06:55

2 stops23h 00m

£689

LondonUdon Thani

LHR London Heathrow - UTH Udon Thani

LHRUTH

London Heathrow

Thu 10/9

10:00-13:25

2 stops21h 25m

Udon Thani

Mon 14/9

13:55-15:20

2 stops31h 25m

£690

LondonUdon Thani

LHR London Heathrow - UTH Udon Thani

LHRUTH

London Heathrow

Thu 15/10

12:30-13:25

1 stop18h 55m

Udon Thani

Sat 31/10

08:30-19:35

1 stop18h 05m

£896

Fastest return journey

LondonUdon Thani

LHR London Heathrow - UTH Udon Thani

LHRUTH

London Heathrow

Wed 14/10

21:25-20:55

1 stop17h 30m

Udon Thani

Sat 31/10

08:30-19:35

1 stop18h 05m

£896

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 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

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

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

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	19h 45m
Direct flights	None

The fastest flight from London to Udon Thani takes 19h 45m

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 19h 45m.
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 August 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 £737	Free Cancellation	Rating 7.9 414 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.