Cheap Flights from Heathrow to Bangkok

Q: How much are flights normally?

£ 484. If you see flights from London Heathrow to Bangkok for less than this, you've found a good deal.

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

14 weeks. If you want cheap flights from London Heathrow to Bangkok, this is the best time to book.

Q: What are the cheapest airlines?

China Southern Airlines, Hainan Airlines. These airlines usually offer the cheapest flights from London Heathrow to Bangkok.

Q: Can I fly direct to Bangkok?

Thai Airways International, EVA Air. You can fly non-stop from London Heathrow to Bangkok with these airlines.

Q: What airlines fly indirectly?

Lufthansa, Air India, Qatar Airways, Etihad Airways, KLM. These airlines fly from London Heathrow to Bangkok, but you’ll have at least one layover.

Q: When is high season?

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

Q: When is the cheapest time to fly?

May. Flights from London Heathrow to Bangkok are usually cheaper at this time of year.

Q: How long is the flight?

11 hrs 30 mins. This is the shortest flight time from London Heathrow to Bangkok.

Q: How long should I stay in Bangkok?

14 days. Most people spend this amount of time in Bangkok.

from as little as £400

25 nights in Bangkok, departing London Heathrow on 30 / Apr / 2025 with China Southern Airlines (price found 7 hours ago)

Subject to availability, prices correct of the last 24 hours

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Cheap return flights from London Heathrow to Bangkok

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The London Heathrow / Bangkok route

All 9586 km of it

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Bangkok flight facts

What you need to know

How much are flights normally?

£ 484

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

When is the best time to book cheap flights?

14 weeks

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

What are the cheapest airlines?

China Southern Airlines
Hainan Airlines

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

Can I fly direct to Bangkok?

Thai Airways International
EVA Air

You can fly non-stop from London Heathrow to Bangkok with these airlines.

What airlines fly indirectly?

Lufthansa
Air India
Qatar Airways
Etihad Airways
KLM

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

When is high season?

December

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

When is the cheapest time to fly?

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

How long is the flight?

11 hrs 30 mins

This is the shortest flight time from London Heathrow to Bangkok.

How long should I stay in Bangkok?

14 days

Most people spend this amount of time in Bangkok.

Alternative flights from the UK to Bangkok

Check out prices for other routes

London to Bangkok

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Manchester to Bangkok

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Edinburgh to Bangkok

from £633 pp

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Birmingham to Bangkok

from £562 pp

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London City Airport to Bangkok

from £672 pp

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London Gatwick to Bangkok

from £526 pp

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London Luton to Bangkok

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London Stansted to Bangkok

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Alternative flights from London Heathrow to Bangkok

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Looking to fly from Heathrow to Bangkok? Right now the cheapest flight is £400, leaving on 30 / Apr / 2025.

For the best deals, the cheapest time to fly is usually between May and October, which is Bangkok’s rainy season, so you can snap up lower fares compared to the peak months of December to February. Or you may be able to save money on the ticket price by flying indirectly and enjoying a layover.

Min / Max Temperature (°C)

LOWEST

21 °C

AVG

28 °C

HIGHEST

34 °C

Rainfall (mm)

LOWEST

10 mm

AVG

117.5 mm

HIGHEST

320 mm

Key facts about Bangkok

Currency

Thai baht

Language

Thai

Timezone

7 hrs ahead of GMT

How to get cheap flights from London Heathrow to Bangkok

Tips and advice from our flight experts

How long is the flight from Heathrow to Bangkok?

A direct flight from Heathrow to Bangkok typically takes around 11 to 12 hours.

Which airlines fly direct from Heathrow to Bangkok?

Airlines offering direct flights include British Airways, Thai Airways, and EVA Air.

What is the best time to fly for the cheapest fares?

The cheapest time to fly is usually during Bangkok's rainy season, from May to October, when demand is lower.

Do I need a visa to fly to Bangkok from the UK?

UK tourists can enter Thailand without a visa for up to 30 days. For longer stays, you will need to apply for a visa.

How early should I book my flight to get the best deal?

Book flights 3 to 4 months in advance to get the best prices, unless you wanna hold out and chance a last minute deal!