Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from London to Udon Thani from £552

This is the cheapest return flight price found by a momondo user in the last 72 hours by searching for a flight from London to Udon Thani departing on 25/4. 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 to Udon Thani

Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
14:45 - 20:55
LHR
-
UTH
24h 10m
2 stops
Multiple Airlines Logo
08:40 - 07:00
UTH
-
LHR
28h 20m
2 stops
£552Multiple Airlines
Sat, 25 Apr - Mon, 11 May
Multiple Airlines Logo
13:00 - 19:30
LHR
-
UTH
23h 30m
3 stops
Multiple Airlines Logo
15:00 - 18:35
UTH
-
LHR
34h 35m
2 stops
£690Multiple Airlines
Fri, 20 Feb - Sat, 7 Mar
Multiple Airlines Logo
11:50 - 12:15
LHR
-
UTH
17h 25m
1 stop
Multiple Airlines Logo
21:35 - 17:55
UTH
-
LHR
51h 20m
3 stops
£709Multiple Airlines
Sat, 7 Mar - Sat, 14 Mar
Multiple Airlines Logo
16:00 - 20:55
LHR
-
UTH
22h 55m
2 stops
Multiple Airlines Logo
13:55 - 06:25
UTH
-
LHR
22h 30m
2 stops
£745Multiple Airlines
Wed, 8 Apr - Fri, 5 Jun
Multiple Airlines Logo
16:00 - 20:25
LHR
-
UTH
21h 25m
2 stops
Multiple Airlines Logo
20:55 - 17:25
UTH
-
LHR
27h 30m
2 stops
£759Multiple Airlines
Fri, 20 Feb - Sat, 7 Mar
Multiple Airlines Logo
08:25 - 15:45
LHR
-
UTH
24h 20m
3 stops
Multiple Airlines Logo
12:15 - 05:55
UTH
-
LHR
24h 40m
3 stops
£777Multiple Airlines
Sat, 7 Mar - Sat, 14 Mar
Multiple Airlines Logo
06:40 - 14:50
LHR
-
UTH
25h 10m
2 stops
Multiple Airlines Logo
16:15 - 06:40
UTH
-
LHR
21h 25m
1 stop
£785Multiple Airlines
Sat, 7 Mar - Sat, 14 Mar
Multiple Airlines Logo
22:40 - 08:30
LHR
-
UTH
27h 50m
2 stops
Multiple Airlines Logo
20:20 - 07:15
UTH
-
LHR
16h 55m
1 stop
£790Multiple Airlines
Wed, 8 Apr - Fri, 5 Jun
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
£795Multiple Airlines
Sat, 7 Mar - Sat, 14 Mar
Multiple Airlines Logo
21:35 - 20:55
LHR
-
UTH
17h 20m
1 stop
Multiple Airlines Logo
08:40 - 19:20
UTH
-
LHR
16h 40m
1 stop
£814Multiple Airlines
Sat, 25 Apr - Mon, 11 May

Thai Airways flights from London to Udon Thani

Our best Thai Airways deals on London 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
£822
Thai Airways
10 Apr
LHR21:25London Heathrow
28h 45m
1 stop
UTH08:10Udon Thani
18 Apr
UTH08:40Udon Thani
16h 35m
1 stop
LHR19:15London Heathrow
£1,081
Thai Airways
10 Apr
LHR21:25London Heathrow
17h 30m
1 stop
UTH20:55Udon Thani
18 Apr
UTH21:25Udon Thani
15h 50m
1 stop
LHR07:15London Heathrow
£1,115

Gulf Air flights from London to Udon Thani

Our best Gulf Air deals on London to Udon Thani flight tickets
Gulf Air
9 Mar
LHR09:30London Heathrow
21h 10m
2 stops
UTH13:40Udon Thani
11 Mar
UTH14:10Udon Thani
23h 25m
2 stops
LHR06:35London Heathrow
£866
Gulf Air
9 Mar
LHR09:30London Heathrow
21h 10m
2 stops
UTH13:40Udon Thani
11 Mar
UTH14:10Udon Thani
31h 35m
2 stops
LHR14:45London Heathrow
£866

momondo Fare Finder

 
Customise your flight search to find flights from London 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 5 February 2026.
Use the filters below to find and compare flights from London to Udon Thani that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

LondonUdon Thani

LHR - UTH

LHRUTH

London Heathrow

Sat 25/4

14:45-20:55

2 stops24h 10m

Udon Thani

Mon 11/5

08:40-07:00

2 stops28h 20m

£552

LondonUdon Thani

LHR - UTH

LHRUTH

London Heathrow

Fri 20/2

13:00-19:30

3 stops23h 30m

Udon Thani

Sat 7/3

15:00-18:35

2 stops34h 35m

£690

LondonUdon Thani

LHR - UTH

LHRUTH

London Heathrow

Sat 7/3

11:50-12:15

1 stop17h 25m

Udon Thani

Sat 14/3

21:35-17:55

3 stops51h 20m

£709

LondonUdon Thani

LHR - UTH

LHRUTH

London Heathrow

Wed 8/4

16:00-20:55

2 stops22h 55m

Udon Thani

Fri 5/6

13:55-06:25

2 stops22h 30m

£745

LondonUdon Thani

LHR - UTH

LHRUTH

London Heathrow

Fri 20/2

16:00-20:25

2 stops21h 25m

Udon Thani

Sat 7/3

20:55-17:25

2 stops27h 30m

£759

LondonUdon Thani

LHR - UTH

LHRUTH

London Heathrow

Sat 7/3

08:25-15:45

3 stops24h 20m

Udon Thani

Sat 14/3

12:15-05:55

3 stops24h 40m

£777

LondonUdon Thani

LHR - UTH

LHRUTH

London Heathrow

Sat 7/3

06:40-14:50

2 stops25h 10m

Udon Thani

Sat 14/3

16:15-06:40

1 stop21h 25m

£785

LondonUdon Thani

LHR - UTH

LHRUTH

London Heathrow

Wed 8/4

22:40-08:30

2 stops27h 50m

Udon Thani

Fri 5/6

20:20-07:15

1 stop16h 55m

£790

LondonUdon Thani

LHR - UTH

LHRUTH

London Heathrow

Sat 7/3

21:35-19:30

1 stop14h 55m

Udon Thani

Sat 14/3

20:00-06:40

1 stop17h 40m

£795

LondonUdon Thani

LHR - UTH

LHRUTH

London Heathrow

Sat 25/4

21:35-20:55

1 stop17h 20m

Udon Thani

Mon 11/5

08:40-19:20

1 stop16h 40m

£814

Flights are sorted by cheapest return flights first.

Sorted by cheapest first

See travel insights to Udon Thani from

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

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

What is the cheapest month to fly to Udon Thani?

The cheapest month to fly to Udon Thani from London is in May. Flight prices, which tend to average around £691, are often lower during this time because this is during the off-season. If you don’t want to visit Udon Thani in May, then you should wait until March to fly from London, when ticket prices are also cheap, with an average price of £734.

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

18h 55m

Direct flights

None
The fastest flight from London to Udon Thani takes 18h 55m
There are no direct flights from London to Udon Thani. There are no popular flight routes from London to Udon Thani.
Search flight deals

  • 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 18h 55m.

  • 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?

  • 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?

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 AirwaysPriceFrom £696Free CancellationRating
7.8
382 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.

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
Sat 7/3
Sat 14/3
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Thailand