How long is the flight from London to Udon Thani?

For as low as £761, Thai Airways can have you in Udon Thani from London in 25h 30m. The distance from London to Udon Thani is about 5827 mi.

What is the cheapest airline to fly from London to Udon Thani round-trip?

Flying on Thai Airways is currently your cheapest option to Udon Thani, with prices starting at £674. You may be able to fly from London to Udon Thani for 21% less than the average price by searching for this airline.

What is the cheapest day to fly from London to Udon Thani?

Travellers seeking maximum savings on their London to Udon Thani flight should consider departing on Friday evenings when fares are most often at their lowest. Tuesday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

In terms of precipitation, rainfall in Udon Thani ranges from 0.0 - 250.0 inches per month. August is typically the wettest month, when rainfall can reach 250.0 mm. January is typically the driest time to visit Udon Thani when rainfall is around 0.0 mm.

If weather is an important factor for your trip to Udon Thani, use this chart to help with planning. For those seeking warmer temperatures, April is the ideal time of year to visit, when temperatures reach an average of 30.0 C. Travellers hoping to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 22.0 C).

What is the cheapest day to fly round-trip from London to Udon Thani?

Monday flights are found to be more expensive to fly from London to Udon Thani. This shouldn’t discourage you from searching, as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to Udon Thani.

What is the cheapest month to fly from London to Udon Thani?

May is one of the best times of the year to fly to Udon Thani from London. Prices for May average £859 per person but you can even find prices for as low as £358. The most expensive prices can be found in the month of January. Opting for a May flight can save you 64% on your journey compared to booking in January

What is the cheapest time of day to fly from LON to UTH?

Unlike in the morning, when flights are generally more expensive, you can save up to 1% on flights from London to Udon Thani by exploring options for tickets at midday.

What airport do you fly into for flights to Udon Thani from London?

If you book a flight to Udon Thani from London, you will be flying to Udon Thani, which is the city’s only airport. Udon Thani (UTH) is located 2.0 mi from the center of Udon Thani. There are 0 flights from London to Udon Thani per day from 1 airline.

Can I find deals for flights from London to Udon Thani that include hotel bookings?

Yes. In addition to deals on London to Udon Thani flights, Cheapflights offers holiday packages that include both flights and hotel.

How can I find direct flights from London to Udon Thani?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from London to Udon Thani.

Can I find deals for business class flights from London to Udon Thani?

Yes. Cheapflights offers flight deals from London to Udon Thani by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

£634+ Cheap Flights from London to Udon Thani

Cheap flight deals from London to Udon Thani

Round-trip from	£634
Popular in	January
Cheapest in	May
Average price	£740

5/1-15/1
4 total stops
56h 20m total
London to Udon Thani

Search Deals

Highest demand for flights based on searches. 16% potential increase in price (£124 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 6% potential price decrease (£38 potential savings vs. average return price).

Search Deals

Average for round-trip flights in September 2025

Search Deals

Find flight deals from London to Udon Thani

Cheapest flights from London to Udon Thani
Explore the most affordable flight options available from London to Udon Thani. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 16 September 2025.

Thu 25/1221:35LHR - UTH

1 stop15h 50mThai Airways

Sat 17/120:50UTH - LHR

1 stop29h 45mThai Airways

Deal found 13/9£1,040

Thu 25/1216:40LHR - UTH

2 stops20h 45mMultiple Airlines

Sat 17/108:30UTH - LHR

2 stops20h 10mMultiple Airlines

Deal found 13/9£1,171

Best flights from London to Udon Thani
Discover carefully curated flight deals from London to Udon Thani that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 16 September 2025.

Mon 5/110:00LHR - UTH

2 stops26h 30mMultiple Airlines

Thu 15/108:40UTH - LHR

2 stops29h 50mMultiple Airlines

Deal found 15/9£634

Fri 30/111:50LHR - UTH

1 stop25h 30mThai Airways

Fri 13/208:30UTH - LHR

1 stop18h 05mThai Airways

Deal found 15/9£761

Fri 30/108:50LHR - UTH

2 stops21h 50mMultiple Airlines

Fri 13/220:50UTH - LHR

2 stops22h 15mMultiple Airlines

Deal found 15/9£650

Thu 25/1221:35LHR - UTH

1 stop15h 50mThai Airways

Sat 17/120:50UTH - LHR

1 stop29h 45mThai Airways

Deal found 13/9£1,040

Thu 25/1216:40LHR - UTH

2 stops20h 45mMultiple Airlines

Sat 17/108:30UTH - LHR

2 stops20h 10mMultiple Airlines

Deal found 13/9£1,171

Fly from

Fly to

Route

Depart

Return

Price

LondonUdon Thani

LHR - UTH

LHRUTH

London Heathrow

Mon 5/1

10:00-19:30

2 stops26h 30m

Udon Thani

Thu 15/1

08:40-07:30

2 stops29h 50m

£634

LondonUdon Thani

LHR - UTH

LHRUTH

London Heathrow

Fri 30/1

08:50-13:40

2 stops21h 50m

Udon Thani

Fri 13/2

20:50-12:05

2 stops22h 15m

£650

LondonUdon Thani

LHR - UTH

LHRUTH

London Heathrow

Fri 30/1

11:50-20:20

1 stop25h 30m

Udon Thani

Fri 13/2

08:30-19:35

1 stop18h 05m

£761

LondonUdon Thani

LHR - UTH

LHRUTH

London Heathrow

Thu 25/12

21:35-20:25

1 stop15h 50m

Udon Thani

Sat 17/1

20:50-19:35

1 stop29h 45m

£1,040

LondonUdon Thani

LHR - UTH

LHRUTH

London Heathrow

Thu 25/12

16:40-20:25

2 stops20h 45m

Udon Thani

Sat 17/1

08:30-21:40

2 stops20h 10m

£1,171

Flights are sorted by cheapest return flights first.

Deals found on 15/9

Best time to book a flight from London to Udon Thani

Have a flexible travel schedule? Discover the best time to fly to Udon Thani from London with our price prediction graph.

Estimated return price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from London to Udon Thani

No data available for this route at this time. Please check back soon.

Reviews of airlines servicing Udon Thani

Read through reviews of airlines operating flights from London to Udon Thani, such as Thai Airways. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Thai Airways

7.8

Good

350 reviews

Check prices

Reviews

1 / 18

10.0

Excellent

Joe,Jun 2025

BKK - TPE

The flight was very comfortable, and I really appreciated that each seat had an electric outlet to charge devices. The staff was great.

Thai Airways

7.8

Good

350 reviews

Thai Airways

7.8

Good

350 reviews

Check prices

Reviews

1 / 18

10.0

Excellent

Joe,Jun 2025

BKK - TPE

The flight was very comfortable, and I really appreciated that each seat had an electric outlet to charge devices. The staff was great.

Related info for your journey

What airport do you fly into for flights to Udon Thani from London?
If you book a flight to Udon Thani from London, you will be flying to Udon Thani, which is the city’s only airport. Udon Thani (UTH) is located 2.0 mi from the center of Udon Thani. There are 0 flights from London to Udon Thani per day from 1 airline.
How long is the flight from London to Udon Thani?
For as low as £761, Thai Airways can have you in Udon Thani from London in 25h 30m. The distance from London to Udon Thani is about 5827 mi.
What is the cheapest airline to fly from London to Udon Thani round-trip?
Flying on Thai Airways is currently your cheapest option to Udon Thani, with prices starting at £674. You may be able to fly from London to Udon Thani for 21% less than the average price by searching for this airline.
Can I find deals for flights from London to Udon Thani that include hotel bookings?
Yes. In addition to deals on London to Udon Thani flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from London to Udon Thani?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from London to Udon Thani.
Can I find deals for business class flights from London to Udon Thani?
Yes. Cheapflights offers flight deals from London to Udon Thani by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

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Alternative routes for London to Udon Thani

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Top airline flying from London to Udon Thani

Airline	Cheapest	Average	Flexibility	On-time
Thai Airways	Cheapest£674	Average£764	FlexibilityNo cancel fee	On-time77%	Search Thai Airways flights

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Why should you use Cheapflights to find cheap flight tickets from London to Udon Thani?

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Can Cheapflights find flights from London to Udon Thani with no change fees?

Need flexible booking options for your flight to Udon Thani from London? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from London to Udon Thani become cheaper?

Not ready to book yet? You can track prices for flights from London to Udon Thani on Cheapflights with our Price Alert feature and get notified when better prices are available.

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Cheap flights from London to Udon Thani from £634

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/1. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from London to Udon Thani

Round-trip from

Popular in

Cheapest in

Average price

Find flight deals from London to Udon Thani

Cheapest flights from London to Udon ThaniExplore the most affordable flight options available from London to Udon Thani. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 16 September 2025.

Explore the most affordable flight options available from London to Udon Thani. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 16 September 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from London to Udon Thani that are best for you.

Best time to book a flight from London to Udon Thani

Have a flexible travel schedule? Discover the best time to fly to Udon Thani from London with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from London to Udon Thani

Reviews of airlines servicing Udon Thani

Read through reviews of airlines operating flights from London to Udon Thani, such as Thai Airways. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from London to Udon Thani. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What airport do you fly into for flights to Udon Thani from London?

How long is the flight from London to Udon Thani?

What is the cheapest airline to fly from London to Udon Thani round-trip?

Can I find deals for flights from London to Udon Thani that include hotel bookings?

How can I find direct flights from London to Udon Thani?

Can I find deals for business class flights from London to Udon Thani?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for London to Udon Thani

See prices for flight routes from nearby airports that may be better suited for you.

Top airline flying from London to Udon Thani

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How does Cheapflights help users find flights from London to Udon Thani?

Why should you use Cheapflights to find cheap flight tickets from London to Udon Thani?

Can Cheapflights find flights from London to Udon Thani with no change fees?

Can Cheapflights notify me if prices for flights from London to Udon Thani become cheaper?

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Book with Flexibility

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Cheapest flights from London to Udon Thani
Explore the most affordable flight options available from London to Udon Thani. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 16 September 2025.