Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from London Heathrow Airport to Udon Thani from £327

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from London Heathrow Airport to Udon Thani departing on 23/3. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags
Voted winner of Europe's Best Travel App 2023

Save money when you book flights with momondo

Big names, great deals

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

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

Trusted and free

Trusted and free

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

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from London Heathrow Airport to Udon Thani

Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
13:55 - 19:30
LHR
-
UTH
22h 35m
2 stops
Multiple Airlines Logo
20:00 - 18:10
UTH
-
LHR
53h 10m
2 stops
£507Multiple Airlines
Tue, 3 Mar - Tue, 17 Mar
Multiple Airlines Logo
16:30 - 19:30
LHR
-
UTH
20h 00m
2 stops
Multiple Airlines Logo
15:00 - 17:35
UTH
-
LHR
33h 35m
3 stops
£609Multiple Airlines
Thu, 19 Mar - Thu, 26 Mar
Multiple Airlines Logo
13:30 - 19:30
LHR
-
UTH
23h 00m
2 stops
Multiple Airlines Logo
15:00 - 11:05
UTH
-
LHR
27h 05m
2 stops
£641Multiple Airlines
Thu, 19 Mar - Thu, 26 Mar
Multiple Airlines Logo
08:25 - 19:50
LHR
-
UTH
29h 25m
2 stops
Multiple Airlines Logo
09:00 - 06:30
UTH
-
LHR
27h 30m
2 stops
£692Multiple Airlines
Fri, 10 Apr - Fri, 24 Apr
Multiple Airlines Logo
20:25 - 12:45
LHR
-
UTH
33h 20m
2 stops
Multiple Airlines Logo
20:00 - 06:40
UTH
-
LHR
17h 40m
1 stop
£750Multiple Airlines
Tue, 3 Mar - Tue, 17 Mar
Multiple Airlines Logo
21:20 - 19:30
LHR
-
UTH
15h 10m
1 stop
Multiple Airlines Logo
20:55 - 17:55
UTH
-
LHR
52h 00m
3 stops
£766Multiple Airlines
Fri, 20 Feb - Sat, 7 Mar
Multiple Airlines Logo
07:05 - 19:30
LHR
-
UTH
29h 25m
2 stops
Multiple Airlines Logo
08:40 - 19:35
UTH
-
LHR
17h 55m
1 stop
£769Multiple Airlines
Thu, 19 Mar - Thu, 26 Mar
Multiple Airlines Logo
21:20 - 08:10
LHR
-
UTH
27h 50m
1 stop
Multiple Airlines Logo
15:00 - 18:35
UTH
-
LHR
34h 35m
2 stops
£788Multiple Airlines
Fri, 20 Feb - Sat, 7 Mar
Multiple Airlines Logo
21:35 - 19:30
LHR
-
UTH
14h 55m
1 stop
Multiple Airlines Logo
20:00 - 06:40
UTH
-
LHR
17h 40m
1 stop
£807Multiple Airlines
Tue, 3 Mar - Tue, 17 Mar
Thai Airways Logo
21:35 - 20:25
LHR
-
UTH
15h 50m
1 stop
Thai Airways Logo
20:55 - 06:40
UTH
-
LHR
16h 45m
1 stop
£823Thai Airways
Fri, 20 Feb - Sat, 7 Mar

Turkish Airlines flights from London Heathrow Airport to Udon Thani

Our best Turkish Airlines deals on London Heathrow Airport to Udon Thani flight tickets
Turkish Airlines
12 Mar
LHR06:35London Heathrow
24h 05m
2 stops
UTH13:40Udon Thani
16 Mar
UTH14:10Udon Thani
50h 45m
2 stops
LHR09:55London Heathrow
£1,187
Turkish Airlines
12 Mar
LHR22:35London Heathrow
26h 25m
2 stops
UTH08:00Udon Thani
16 Mar
UTH14:10Udon Thani
31h 45m
2 stops
LHR14:55London Heathrow
£1,261

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
20 Feb
LHR21:35London Heathrow
15h 50m
1 stop
UTH20:25Udon Thani
7 Mar
UTH08:30Udon Thani
18h 05m
1 stop
LHR19:35London Heathrow
£823
Thai Airways
4 Feb
LHR21:35London Heathrow
15h 50m
1 stop
UTH20:25Udon Thani
29 Apr
UTH13:55Udon Thani
23h 20m
1 stop
LHR07:15London Heathrow
£835
Thai Airways
19 Mar
LHR21:35London Heathrow
15h 50m
1 stop
UTH20:25Udon Thani
26 Mar
UTH20:55Udon Thani
16h 45m
1 stop
LHR06:40London Heathrow
£837

momondo Fare Finder

 
Customise your flight search to find flights from London Heathrow Airport to Udon Thani that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 279,928 searches. Data last updated 3 February 2026.
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

LondonUdon Thani

LHR - UTH

LHRUTH

London Heathrow

Tue 3/3

13:55-19:30

2 stops22h 35m

Udon Thani

Tue 17/3

20:00-18:10

2 stops53h 10m

£507

LondonUdon Thani

LHR - UTH

LHRUTH

London Heathrow

Thu 19/3

16:30-19:30

2 stops20h 00m

Udon Thani

Thu 26/3

15:00-17:35

3 stops33h 35m

£609

LondonUdon Thani

LHR - UTH

LHRUTH

London Heathrow

Thu 19/3

13:30-19:30

2 stops23h 00m

Udon Thani

Thu 26/3

15:00-11:05

2 stops27h 05m

£641

LondonUdon Thani

LHR - UTH

LHRUTH

London Heathrow

Fri 10/4

08:25-19:50

2 stops29h 25m

Udon Thani

Fri 24/4

09:00-06:30

2 stops27h 30m

£692

LondonUdon Thani

LHR - UTH

LHRUTH

London Heathrow

Tue 3/3

20:25-12:45

2 stops33h 20m

Udon Thani

Tue 17/3

20:00-06:40

1 stop17h 40m

£750

LondonUdon Thani

LHR - UTH

LHRUTH

London Heathrow

Fri 20/2

21:20-19:30

1 stop15h 10m

Udon Thani

Sat 7/3

20:55-17:55

3 stops52h 00m

£766

LondonUdon Thani

LHR - UTH

LHRUTH

London Heathrow

Thu 19/3

07:05-19:30

2 stops29h 25m

Udon Thani

Thu 26/3

08:40-19:35

1 stop17h 55m

£769

LondonUdon Thani

LHR - UTH

LHRUTH

London Heathrow

Fri 20/2

21:20-08:10

1 stop27h 50m

Udon Thani

Sat 7/3

15:00-18:35

2 stops34h 35m

£788

LondonUdon Thani

LHR - UTH

LHRUTH

London Heathrow

Tue 3/3

21:35-19:30

1 stop14h 55m

Udon Thani

Tue 17/3

20:00-06:40

1 stop17h 40m

£807

LondonUdon Thani

LHR - UTH

LHRUTH

London Heathrow

Fri 20/2

21:35-20:25

1 stop15h 50m

Udon Thani

Sat 7/3

20:55-06:40

1 stop16h 45m

£823

Flights are sorted by cheapest return flights first.

Showing 1-10 of 13 resultsSorted by cheapest first
1
2

See travel insights to Udon Thani from

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 October. Flight prices, which tend to average around £735, 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 £749.

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 00m

Direct flights

None
The fastest flight from London Heathrow Airport to Udon Thani takes 20h 00m
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

  • How far is London Heathrow to Udon Thani by plane?

    There are 5825.8 mi between London Heathrow and Udon Thani. 20h 00m 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?

  • 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?

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 AirwaysPriceFrom £696Free CancellationRating
7.8
381 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.

An easier way to manage your Udon Thani trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Thu 5/3
Thu 12/3
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Thailand