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Cheap flights from London to Udon Thani from £533

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 23/12. Fares are subject to change and may not be available on all flights or dates of travel.
LON — UTH
3 Jan — 10 Jan1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from London to Udon Thani

Enter your travel dates to find the best prices.

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 4 December 2025.

Thu 25/1211:50LHR - UTH
1 stop25h 35mThai Airways
Sat 17/114:10UTH - LHR
1 stop23h 30mThai Airways
Deal found 2/12£1,149
Thu 25/1211:50LHR - UTH
1 stop25h 35mMultiple Airlines
Sat 17/120:50UTH - LHR
2 stops20h 05mMultiple Airlines
Deal found 1/12£1,375
Sat 27/1215:30LHR - UTH
2 stops21h 55mMultiple Airlines
Sun 4/120:50UTH - LHR
2 stops22h 25mMultiple Airlines
Deal found 2/12£1,805
Sat 27/1211:50LHR - UTH
1 stop25h 35mThai Airways
Sun 4/120:50UTH - LHR
1 stop29h 45mThai Airways
Deal found 2/12£2,320

Find flight deals from London to Udon Thani

Discover tips and strategies to find the most affordable flight options for your journey from London (LON) to Udon Thani (UTH). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 4 December 2025.

Round-trip from

£633

One-way from

£533

Popular in

January

Cheapest in

May

Average price

£956
14/4-28/5
  • 14/4-28/5
  • 4 total stops
  • 56h 20m total
  • London to Udon Thani
Search Deals
23/12
  • 23/12
  • 3 total stops
  • 29h 30m total
  • London to Udon Thani
Search Deals
Highest demand for flights based on searches. 16% potential increase in price (£131 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease (£40 potential savings vs. average return price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights 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, Cheapflights users made 858,174 searches. Data last updated 4 December 2025.
Use the filters below to find and compare flights from London to Udon Thani that are best for you.

Fly from

London

Fly to

Udon Thani

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

£633

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

£640

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

£897

LondonUdon Thani

LHR - UTH

LHRUTH

London Heathrow

Thu 25/12

11:50-20:25

1 stop25h 35m

Udon Thani

Sat 17/1

14:10-06:40

1 stop23h 30m

£1,149

LondonUdon Thani

LHR - UTH

LHRUTH

London Heathrow

Tue 23/12

07:00-19:30

3 stops29h 30m

£533

Flights are sorted by cheapest return flights first.

Deals found on 2/12

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

What is the cheapest month to book a flight from London to Udon Thani?

Currently, May is the cheapest month in which you can book a flight from London to Udon Thani (average of £391). Flying from London to Udon Thani in January is currently the most expensive (average of £856). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Reviews of airlines servicing Udon Thani

Get insights into the airlines that provide service to Udon Thani. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Udon Thani. Reviews last updated 4 December 2025.
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
363 reviews
Check prices

Crew

8.3

Overall

7.8

Entertainment

6.9

Food

7.3

Comfort

7.5

Boarding

7.8

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
363 reviews
Thai Airways
7.8
Good
363 reviews
Check prices

Crew

8.3

Overall

7.8

Entertainment

6.9

Food

7.3

Comfort

7.5

Boarding

7.8

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

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?

    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.

  • 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 £688. 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.

  • What is the cheapest month to book a flight from London to Udon Thani?

    Currently, May is the cheapest month in which you can book a flight from London to Udon Thani (average of £391). Flying from London to Udon Thani in January is currently the most expensive (average of £856). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for London to Udon Thani

See prices for flight routes from nearby airports that may be better suited for you.
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Top airline flying from London to Udon Thani

Discover the top airline that operate flights from London to Udon Thani. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 4 December 2025.
AirlineCheapestAverageFlexibilityOn-time
Thai AirwaysCheapest£688Average£782FlexibilityNo cancel feeOn-time77%
Search Thai Airways flights

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

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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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