Cheap flights from London Heathrow to Udon Thani

Q: How much are flights normally?

£ 599. If you see flights from London Heathrow to Udon Thani for less than this, you've found a good deal.

Q: When is the best time to book cheap flights?

16 weeks. If you want cheap flights from London Heathrow to Udon Thani, this is the best time to book.

Q: What are the cheapest airlines?

Etihad Airways, Lufthansa, Qatar Airways, Thai Airways International. These airlines usually offer the cheapest flights from London Heathrow to Udon Thani.

Q: What airlines fly indirectly?

Thai Airways International, Qatar Airways, Lufthansa, EVA Air, Etihad Airways. These airlines fly from London Heathrow to Udon Thani, but you’ll have at least one layover.

Q: When is high season?

March. This is the most expensive time to fly to Udon Thani. If this is when you want to go, book your flight from London Heathrow in advance.

Q: When is the cheapest time to fly?

December. Flights from London Heathrow to Udon Thani are usually cheaper at this time of year.

Q: How long is the flight?

15 hrs 45 mins. This is the shortest flight time from London Heathrow to Udon Thani.

Q: How long should I stay in Udon Thani?

29 days. Most people spend this amount of time in Udon Thani.

from as little as £663

8 nights in Udon Thani, departing London Heathrow on 08 / Jun / 2025 with Qatar Airways (price found 19 hours ago)

Subject to availability, prices correct of the last 24 hours

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Cheap return flights from London Heathrow to Udon Thani

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All prices shown are per person based on return flights only. Prices found in the last 48 hours.

The London Heathrow / Udon Thani route

All 9393 km of it

Cheap flight deals for this route

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Udon Thani flight facts

What you need to know

How much are flights normally?

£ 599

If you see flights from London Heathrow to Udon Thani for less than this, you've found a good deal.

When is the best time to book cheap flights?

16 weeks

If you want cheap flights from London Heathrow to Udon Thani, this is the best time to book.

What are the cheapest airlines?

Etihad Airways
Lufthansa
Qatar Airways
Thai Airways International

These airlines usually offer the cheapest flights from London Heathrow to Udon Thani.

What airlines fly indirectly?

Thai Airways International
Qatar Airways
Lufthansa
EVA Air
Etihad Airways

These airlines fly from London Heathrow to Udon Thani, but you’ll have at least one layover.

When is high season?

March

This is the most expensive time to fly to Udon Thani. If this is when you want to go, book your flight from London Heathrow in advance.

When is the cheapest time to fly?

December

Flights from London Heathrow to Udon Thani are usually cheaper at this time of year.

How long is the flight?

15 hrs 45 mins

This is the shortest flight time from London Heathrow to Udon Thani.

How long should I stay in Udon Thani?

29 days

Most people spend this amount of time in Udon Thani.

Alternative flights from the UK to Udon Thani

Check out prices for other routes

London to Udon Thani

from £663 pp

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Manchester to Udon Thani

from £820 pp

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Birmingham to Udon Thani

from £705 pp

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London Stansted to Udon Thani

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London City Airport to Udon Thani

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London Gatwick to Udon Thani

from £682 pp

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Alternative flights from London Heathrow to Udon Thani

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08 / Jun / 2025 is currently the lowest priced day of the year to fly the London Heathrow/Udon Thani route. There are around 182 flights on any given week from the UK to Udon Thani and the cheapest month to fly right now is June.

Not suitable? Try running another search or viewing all cheap flight deals.

Min / Max Temperature (°C)

LOWEST

16 °C

AVG

27 °C

HIGHEST

35 °C

Rainfall (mm)

LOWEST

0 mm

AVG

110.8 mm

HIGHEST

250 mm

Key facts about Udon Thani

Currency

Thai baht

Language

Thai

Timezone

7 hrs ahead of GMT

How to get cheap flights from London Heathrow to Udon Thani

Tips and advice from our flight experts

If you're looking to fly from London Heathrow to Udon Thani, you might like to know that 08 / Jun / 2025 currently has the cheapest flights. At the moment, there are seven airlines flying to Udon Thani. Go through the results to find the right flights for you – you can adjust the filters to see find even more flights to Udon Thani.

The most popular airlines offering flights to Udon Thani are Thai Airways International, Qatar Airways & Lufthansa. Thai Airways International is the most popular one, but that doesn’t mean their flights will be the cheapest. If you can't find a flight time that suits you, why not look at flying out from a different airport?

Generally speaking, the flight from London Heathrow to Udon Thani takes around 19 hrs 5 mins. The fastest flight takes 15 hrs 45 mins to cover the 9393 km distance. You can view all flight times yourself in the results list.

The cheapest month to fly to Udon Thani is December, while March is when the prices of flights, hotels and car hire will be at their highest. If you need somewhere to stay for your trip to Thailand, take a look at our accommodation options.