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Cheap flights from London Heathrow Airport to Udon Thani from £630

LHR — UTH
28 Oct — 4 Nov1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Heathrow to Udon Thani

Enter your travel dates to find the best prices.

Cheapest flights from Heathrow to Udon Thani

Thu 1/1010:00 -
2 stops21h 25m
Tue 6/1013:55 -
2 stops23h 00m
Deal found 25/9£630
Sun 25/1008:45 -
2 stops22h 40m
Sun 1/1110:10 -
3 stops31h 35m
Deal found 25/9£693
Mon 12/1008:30 -
2 stops22h 55m
Fri 13/1120:00 -
2 stops25h 00m
Deal found 28/9£698
Tue 13/1010:00 -
2 stops21h 25m
Sat 17/1013:55 -
2 stops31h 25m
Deal found 26/9£738
Wed 14/1009:45 -
2 stops25h 30m
Sun 25/1015:00 -
2 stops27h 05m
Deal found 27/9£753

Find flight deals from Heathrow to Udon Thani

Round-trip from

£693

Popular in

March

Cheapest in

May
25/10-1/11
  • 25/10-1/11
  • 5 total stops
  • 54h 15m total
  • London to Udon Thani
Search Deals
Highest demand for flights based on searches. 11% potential increase in price (£89 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease (£38 potential savings vs. average return price).
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Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonUdon Thani

LHR London Heathrow - UTH Udon Thani

LHRUTH

London Heathrow

Sun 25/10

08:45-14:25

2 stops22h 40m

Udon Thani

Sun 1/11

10:10-10:45

3 stops31h 35m

£693
Fastest return journey

LondonUdon Thani

LHR London Heathrow - UTH Udon Thani

LHRUTH

London Heathrow

Mon 12/10

08:30-13:25

2 stops22h 55m

Udon Thani

Fri 13/11

20:00-14:00

2 stops25h 00m

£698

LondonUdon Thani

LHR London Heathrow - UTH Udon Thani

LHRUTH

London Heathrow

Tue 13/10

10:00-13:25

2 stops21h 25m

Udon Thani

Sat 17/10

13:55-15:20

2 stops31h 25m

£738

LondonUdon Thani

LHR London Heathrow - UTH Udon Thani

LHRUTH

London Heathrow

Wed 14/10

09:45-17:15

2 stops25h 30m

Udon Thani

Sun 25/10

15:00-11:05

2 stops27h 05m

£753

Flights are sorted by cheapest return flights first.

Deals found on 25/9

Sorted by cheapest first

Best time to book a flight from Heathrow to Udon Thani

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

Reviews of airlines servicing Udon Thani

Read reviews from past customers who have flown with Thai Airways from London Heathrow Airport to Udon Thani. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Thai Airways
7.9
Good
425 reviews
Check prices

Food

7.5

Entertainment

6.9

Crew

8.5

Comfort

7.7

Overall

7.9

Boarding

8.0

Reviews

1 / 20
8.0
Excellent

Thayawat,Sept 2026

SIN - BKK

Entertainment system was improved. I could not get my preferred Isle seat this time.
Thai Airways
7.9
Good
425 reviews
Thai Airways
7.9
Good
425 reviews
Check prices

Food

7.5

Entertainment

6.9

Crew

8.5

Comfort

7.7

Overall

7.9

Boarding

8.0

Reviews

1 / 20
8.0
Excellent

Thayawat,Sept 2026

SIN - BKK

Entertainment system was improved. I could not get my preferred Isle seat this time.

Related info for your journey

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

    Udon Thani (UTH) is the airport you will fly into if you book a flight from London Heathrow to Udon Thani. You should not have trouble finding flights to Udon Thani from London Heathrow; the airport handles an average of 0 inbound flights from London Heathrow per day. You should also have plenty of airline options to choose from since 1 airline has flights to the Udon Thani airport from London Heathrow. It is only a 2.0 mi journey from Udon Thani (UTH) to Udon Thani’s city center.

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

    Our cheapest airline available from London Heathrow Airport to Udon Thani is Thai Airways. Our recent data shows that you can find tickets from as low as £753 on this airline. Users have found that Thai Airways is 21% cheaper than the other options available to this destination.

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

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

  • How can I find direct flights from Heathrow to Udon Thani?

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

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

    Yes. Cheapflights offers flight deals from Heathrow 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

Browse thousands of different options on Cheapflights for your next trip

Top airline flying from Heathrow to Udon Thani

AirlineCheapestAverageFlexibilityOn-time
Thai AirwaysCheapest£753Average£918FlexibilityNo cancel feeOn-time77%
Search Thai Airways flights

Fly with Cheapflights

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

Cheapflights simply makes it quick and affordable to book flights from Heathrow to Udon Thani by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

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

Cheapflights does show flights with no change fees to all users. To see these options for flights from Heathrow to Udon Thani, users can toggle the no change fees filter when performing a flight search.

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

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

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