Latest deals
Insights
When to book
FAQs
Price Alerts
Flights to Udon Thani

£531 Cheap flights to Udon Thani

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight to Udon Thani departing on 23/12. 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 the United Kingdom to Udon Thani

Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
16:25 - 19:50
LHR
-
UTH
21h 25m2 stops
Multiple Airlines Logo
16:45 - 21:40
UTH
-
LHR
34h 55m2 stops
£630Multiple Airlines
Tue, 14 Apr - Thu, 28 May
Multiple Airlines Logo
10:25 - 18:00
LHR
-
UTH
24h 35m2 stops
Multiple Airlines Logo
10:10 - 15:25
UTH
-
LHR
36h 15m2 stops
£637Multiple Airlines
Sat, 17 Jan - Sat, 24 Jan
Multiple Airlines Logo
17:50 - 19:50
LHR
-
UTH
20h 00m2 stops
Multiple Airlines Logo
14:30 - 10:00
UTH
-
LHR
25h 30m3 stops
£779Multiple Airlines
Tue, 14 Apr - Thu, 28 May
Multiple Airlines Logo
21:35 - 19:50
LHR
-
UTH
16h 15m1 stop
Multiple Airlines Logo
09:00 - 19:20
UTH
-
LHR
16h 20m1 stop
£791Multiple Airlines
Tue, 14 Apr - Thu, 28 May
Multiple Airlines Logo
21:00 - 08:10
LHR
-
UTH
28h 10m2 stops
Multiple Airlines Logo
18:30 - 06:40
UTH
-
LHR
19h 10m1 stop
£795Multiple Airlines
Sat, 17 Jan - Sat, 24 Jan
Multiple Airlines Logo
21:20 - 20:20
LHR
-
UTH
16h 00m1 stop
Multiple Airlines Logo
20:50 - 19:05
UTH
-
LHR
29h 15m1 stop
£801Multiple Airlines
Sat, 17 Jan - Sat, 24 Jan
Multiple Airlines Logo
10:00 - 13:25
LHR
-
UTH
21h 25m2 stops
Multiple Airlines Logo
21:25 - 07:15
UTH
-
LHR
15h 50m1 stop
£822Multiple Airlines
Tue, 14 Apr - Thu, 28 May
Multiple Airlines Logo
08:50 - 13:40
LHR
-
UTH
21h 50m2 stops
Multiple Airlines Logo
14:10 - 06:40
UTH
-
LHR
23h 30m2 stops
£893Multiple Airlines
Mon, 5 Jan - Sat, 10 Jan
Multiple Airlines Logo
07:00 - 19:30
LHR
-
UTH
29h 30m3 stops
Multiple Airlines Logo
20:00 - 17:05
UTH
-
LHR
28h 05m3 stops
£1,085Multiple Airlines
Mon, 5 Jan - Sat, 10 Jan
Multiple Airlines Logo
08:45 - 17:15
LHR
-
UTH
25h 30m2 stops
Multiple Airlines Logo
20:00 - 17:05
UTH
-
LHR
28h 05m3 stops
£1,114Multiple Airlines
Mon, 5 Jan - Sat, 10 Jan

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 5 December 2025.
Use the filters below to find and compare flights to Udon Thani that are best for you.

Fly from

Route

Depart

Return

Price

LondonUdon Thani

LHR - UTH

LHRUTH

London Heathrow

Tue 14/4

16:25-19:50

2 stops21h 25m

Udon Thani

Thu 28/5

16:45-21:40

2 stops34h 55m

£630

LondonUdon Thani

LHR - UTH

LHRUTH

London Heathrow

Sat 17/1

10:25-18:00

2 stops24h 35m

Udon Thani

Sat 24/1

10:10-15:25

2 stops36h 15m

£637

LondonUdon Thani

LHR - UTH

LHRUTH

London Heathrow

Tue 14/4

17:50-19:50

2 stops20h 00m

Udon Thani

Thu 28/5

14:30-10:00

3 stops25h 30m

£779

LondonUdon Thani

LHR - UTH

LHRUTH

London Heathrow

Tue 14/4

21:35-19:50

1 stop16h 15m

Udon Thani

Thu 28/5

09:00-19:20

1 stop16h 20m

£791

LondonUdon Thani

LHR - UTH

LHRUTH

London Heathrow

Sat 17/1

21:00-08:10

2 stops28h 10m

Udon Thani

Sat 24/1

18:30-06:40

1 stop19h 10m

£795

LondonUdon Thani

LHR - UTH

LHRUTH

London Heathrow

Sat 17/1

21:20-20:20

1 stop16h 00m

Udon Thani

Sat 24/1

20:50-19:05

1 stop29h 15m

£801

LondonUdon Thani

LHR - UTH

LHRUTH

London Heathrow

Tue 14/4

10:00-13:25

2 stops21h 25m

Udon Thani

Thu 28/5

21:25-07:15

1 stop15h 50m

£822

LondonUdon Thani

LHR - UTH

LHRUTH

London Heathrow

Mon 5/1

08:50-13:40

2 stops21h 50m

Udon Thani

Sat 10/1

14:10-06:40

2 stops23h 30m

£893

LondonUdon Thani

LHR - UTH

LHRUTH

London Heathrow

Mon 5/1

07:00-19:30

3 stops29h 30m

Udon Thani

Sat 10/1

20:00-17:05

3 stops28h 05m

£1,085

LondonUdon Thani

LHR - UTH

LHRUTH

London Heathrow

Mon 5/1

08:45-17:15

2 stops25h 30m

Udon Thani

Sat 10/1

20:00-17:05

3 stops28h 05m

£1,114

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

Udon Thani flights insights and trends

Explore insights for your Udon Thani flight to craft the best travel plan

What is the cheapest month to fly to Udon Thani?

The cheapest month to fly to Udon Thani from United Kingdom is in May. Flight prices, which tend to average around £709, 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 February to fly from United Kingdom, when ticket prices are also cheap, with an average price of £750.

What is the cheapest day to depart on your flight to Udon Thani?

The cheapest day to depart from United Kingdom to Udon Thani is on a Friday. Travellers who choose to depart for Udon Thani on a Friday will often find tickets for as low as £789. On the other hand, Tuesday is the most expensive day to depart from United Kingdom because it is more convenient for both business and leisure travellers. As a result, prices tend to be around £936.

What is the cheapest time of day to depart on your flight to Udon Thani?

According to our data, the cheapest time of day to fly to Udon Thani is in the evening. momondo users have found flights departing from United Kingdom to Udon Thani in the evening for as low as £838. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights to Udon Thani are more costly in the morning, with an average ticket price of £842. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

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 AIRPORTOctober20% cheaperFlying from London Heathrow Airport to Udon Thani costs on average just £726 in October
MOST EXPENSIVE MONTH TO FLY TO UDON THANI FROM LONDON HEATHROW AIRPORTDecember128% more expensiveIt costs about £2,056 for flights to Udon Thani from London Heathrow Airport in December
MOST POPULAR MONTH TO FLY TO UDON THANI FROM LONDON HEATHROW AIRPORTApril600% more users visitedMore momondo users searched in flights to Udon Thani from London Heathrow Airport in April than any other month

Cheap Udon Thani flight deals and tips

Summary info about Udon Thani flight prices, duration and airlines

Best One-Way Price

£531

Best Round-Trip Price

£630

Fastest flight time

29h 30m
The best one-way flight price to Udon Thani from United Kingdom in the last 72 hours is £531 (London Heathrow to Udon Thani).
Search Deals
The best round-trip flight price to Udon Thani from United Kingdom in the last 72 hours is £630 (London Heathrow to Udon Thani).
Search Deals
The fastest flight to Udon Thani from United Kingdom takes 29h 30m (London Heathrow to Udon Thani).
Search Deals

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 £26 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 49% 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 21h 25m 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 December 2025, 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.

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
Sun 4/1
Sun 11/1
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Udon Thani

Popular Flights to Udon Thani

Popular routes according to searches in the past day on momondo
London to Udon Thani Flightsfrom £841