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Flights to Udon Thani

£498 Cheap flights to Udon Thani

This is the cheapest return flight price found by a momondo user in the last 72 hours by searching for a flight to Udon Thani departing on 6/5. 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
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Find the cheapest flights from the United Kingdom to Udon Thani

Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
16:15 - 20:55
LHR
-
UTH
22h 40m
2 stops
Multiple Airlines Logo
21:25 - 07:30
UTH
-
LHR
40h 05m
2 stops
£498Multiple Airlines
Wed, 6 May - Sat, 16 May
Multiple Airlines Logo
16:15 - 20:55
LHR
-
UTH
22h 40m
2 stops
Multiple Airlines Logo
21:25 - 12:40
UTH
-
LHR
21h 15m
2 stops
£563Multiple Airlines
Mon, 1 Jun - Wed, 1 Jul
Multiple Airlines Logo
20:45 - 09:45
LHR
-
UTH
31h 00m
2 stops
Multiple Airlines Logo
10:15 - 12:45
UTH
-
LHR
32h 30m
2 stops
£629Multiple Airlines
Sun, 3 May - Sat, 16 May
Multiple Airlines Logo
09:30 - 13:25
LHR
-
UTH
21h 55m
2 stops
Multiple Airlines Logo
13:55 - 06:30
UTH
-
LHR
22h 35m
2 stops
£672Multiple Airlines
Tue, 19 May - Tue, 2 Jun
Multiple Airlines Logo
09:30 - 13:25
LHR
-
UTH
21h 55m
2 stops
Multiple Airlines Logo
21:25 - 13:15
UTH
-
LHR
21h 50m
2 stops
£682Multiple Airlines
Wed, 6 May - Wed, 3 Jun
Multiple Airlines Logo
08:25 - 13:25
LHR
-
UTH
23h 00m
2 stops
Multiple Airlines Logo
21:25 - 14:10
UTH
-
LHR
22h 45m
2 stops
£687Multiple Airlines
Wed, 6 May - Sat, 16 May
Multiple Airlines Logo
09:30 - 13:25
LHR
-
UTH
21h 55m
2 stops
Multiple Airlines Logo
21:25 - 14:05
UTH
-
LHR
22h 40m
2 stops
£736Multiple Airlines
Wed, 6 May - Sat, 16 May
Multiple Airlines Logo
21:45 - 20:55
LHR
-
UTH
17h 10m
2 stops
Multiple Airlines Logo
12:55 - 12:45
UTH
-
LHR
29h 50m
3 stops
£748Multiple Airlines
Tue, 19 May - Tue, 2 Jun
Multiple Airlines Logo
14:45 - 19:50
LHR
-
UTH
23h 05m
2 stops
Multiple Airlines Logo
09:00 - 12:45
UTH
-
LHR
33h 45m
2 stops
£767Multiple Airlines
Thu, 6 Aug - Sat, 15 Aug
Multiple Airlines Logo
07:40 - 20:55
LHR
-
UTH
31h 15m
3 stops
Multiple Airlines Logo
12:55 - 06:25
UTH
-
LHR
47h 30m
3 stops
£778Multiple Airlines
Thu, 6 Aug - Sat, 15 Aug

momondo Fare Finder

 
Locate flights to Udon Thani that fit your budget, with regularly updated fares and availability. In the last 7 days, momondo users made a total of 279,928 searches and data was last updated on 19 April 2026.
Use the filters below to find and compare flights to Udon Thani that are best for you.

Fly from

Route

Depart

Return

Price

Cheapest return flight

LondonUdon Thani

LHR - UTH

LHRUTH

London Heathrow

Wed 6/5

16:15-20:55

2 stops22h 40m

Udon Thani

Sat 16/5

21:25-07:30

2 stops40h 05m

£498

LondonUdon Thani

LHR - UTH

LHRUTH

London Heathrow

Mon 1/6

16:15-20:55

2 stops22h 40m

Udon Thani

Wed 1/7

21:25-12:40

2 stops21h 15m

£563

LondonUdon Thani

LHR - UTH

LHRUTH

London Heathrow

Sun 3/5

20:45-09:45

2 stops31h 00m

Udon Thani

Sat 16/5

10:15-12:45

2 stops32h 30m

£629

LondonUdon Thani

LHR - UTH

LHRUTH

London Heathrow

Tue 19/5

09:30-13:25

2 stops21h 55m

Udon Thani

Tue 2/6

13:55-06:30

2 stops22h 35m

£672
Fastest return journey

LondonUdon Thani

LHR - UTH

LHRUTH

London Heathrow

Wed 6/5

09:30-13:25

2 stops21h 55m

Udon Thani

Wed 3/6

21:25-13:15

2 stops21h 50m

£682

LondonUdon Thani

LHR - UTH

LHRUTH

London Heathrow

Wed 6/5

08:25-13:25

2 stops23h 00m

Udon Thani

Sat 16/5

21:25-14:10

2 stops22h 45m

£687

LondonUdon Thani

LHR - UTH

LHRUTH

London Heathrow

Wed 6/5

09:30-13:25

2 stops21h 55m

Udon Thani

Sat 16/5

21:25-14:05

2 stops22h 40m

£736

LondonUdon Thani

LHR - UTH

LHRUTH

London Heathrow

Tue 19/5

21:45-20:55

2 stops17h 10m

Udon Thani

Tue 2/6

12:55-12:45

3 stops29h 50m

£748

LondonUdon Thani

LHR - UTH

LHRUTH

London Heathrow

Thu 6/8

14:45-19:50

2 stops23h 05m

Udon Thani

Sat 15/8

09:00-12:45

2 stops33h 45m

£767

LondonUdon Thani

LHR - UTH

LHRUTH

London Heathrow

Thu 6/8

07:40-20:55

3 stops31h 15m

Udon Thani

Sat 15/8

12:55-06:25

3 stops47h 30m

£778

Flights are sorted by cheapest return flights first.

Sorted by cheapest first

Cheapest flights to Udon Thani

Find the cheapest flights to Udon Thani from your nearest city or airport
Find flights from London Heathrow Airport to Udon Thani
CHEAPEST MONTH TO FLY TO UDON THANI FROM LONDON HEATHROW AIRPORTOctober15% cheaperFlying from London Heathrow Airport to Udon Thani costs on average just £751 in October
MOST EXPENSIVE MONTH TO FLY TO UDON THANI FROM LONDON HEATHROW AIRPORTMarch55% more expensiveIt costs about £1,368 for flights to Udon Thani from London Heathrow Airport in March
MOST POPULAR MONTH TO FLY TO UDON THANI FROM LONDON HEATHROW AIRPORTNovember383% more users visitedMore momondo users searched in flights to Udon Thani from London Heathrow Airport in November than any other month

Cheap Udon Thani flight deals and tips

Summary info about Udon Thani flight prices, duration and airlines

Best Round-Trip Price

£498

Fastest flight time

22h 40m
The best round-trip flight price to Udon Thani from United Kingdom in the last 72 hours is £498 (London Heathrow to Udon Thani).
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The fastest flight to Udon Thani from United Kingdom takes 22h 40m (London Heathrow to Udon Thani).
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Frequently asked questions about flying to Udon Thani

Is there an alternative airport near Udon Thani?

Those flying to Udon Thani could potentially find better pricing at Khon Kaen Airport (66 mi from Udon Thani city centre), Loei Airport (70 mi from Udon Thani city centre) or Sakon Nakhon Airport (91 mi from Udon Thani city centre) depending on the month and departure airport.

Is there a cheaper alternative to flying into Udon Thani?

With an average price of £35 per person, Sakon Nakhon Airport is the cheapest airport to fly into when planning your trip to Udon Thani. This price can fluctuate based on where you are flying from. momondo’s Airport-to-Airport Pricing Tool can help users find the best prices.

What is the absolute cheapest flight to Udon Thani?

The best price found on momondo to Udon Thani was £22/pp from Bangkok, which is 43% cheaper than the average flight price to Udon Thani. To find the cheapest price to Udon Thani from your area, use momondo’s Airport-to-Airport Pricing Tool.

How long does it take to fly to Udon Thani?

Flight times vary depending on what airport in United Kingdom you fly out of and what airport in Udon Thani you fly into. For example, flying from London Heathrow to Udon Thani takes 19h 40m on average. On the other hand, flying from Manchester to Udon Thani takes on average. Keep in mind that it’s always quicker to opt for a non-stop flight, so be sure to check momondo to see if there are any available for your route.

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

Prices for flights to Udon Thani Airport refresh daily.

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

As of April 2026, there are 5 operators available to choose from for flights to Udon Thani Airport.

How old do you have to be to fly 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 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.

Why use momondo?

Why should I use momondo to find a flight deal to Udon Thani?

Finding the right flight to Udon Thani is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. These options can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Udon Thani quick and easy, saving you time and money.

Can I find flights to Udon Thani with flexible booking policies on momondo?

momondo does allow users to show only those flights to Udon Thani which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights to Udon Thani?

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

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

Price alerts on flights to Udon Thani are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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Popular Flights to Udon Thani

Popular routes according to searches in the past day on momondo
London to Udon Thani Flightsfrom £761