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฿20,703+ Direct flights from London Heathrow Airport

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 20/8. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
LHR — BKK
24 Jun — 1 Jul1
1 adult

Direct flights from Heathrow

Cheapest flights from Heathrow
Explore the most affordable flight options available from Heathrow. Find the lowest fares based on data from user searches, with prices last updated on 19 June 2025.

Fri 26/912:30LHR - BKK
Nonstop11h 30mThai Airways
Thu 9/1000:30BKK - LHR
Nonstop12h 45mThai Airways
Deal found 17/6฿25,267
Sun 24/821:35LHR - BKK
Nonstop11h 55mEVA Air
Fri 5/912:45BKK - LHR
Nonstop12h 35mEVA Air
Deal found 18/6฿29,147

Find direct flights from Heathrow within your budget

Use the slider to find direct flights from Heathrow within your budget. Price data is based on user searches made on Cheapflights. Over the past seven days, Cheapflights users made 17,341 searches. This data was last updated on 19 June 2025.

Fly to

Suvarnabhumi

Route

Depart

Return

Price

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Fri 26/9

12:30-06:00

Nonstop11h 30m

Bangkok Suvarnabhumi

Thu 9/10

00:30-07:15

Nonstop12h 45m

฿25,267

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Sun 24/8

21:35-15:30

Nonstop11h 55m

Bangkok Suvarnabhumi

Fri 5/9

12:45-19:20

Nonstop12h 35m

฿29,147

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Wed 20/8

21:35-15:30

Nonstop11h 55m

฿20,703

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Mon 23/6

12:30-06:00

Nonstop11h 30m

฿22,594

Flights are sorted by cheapest return flights first.

Deals found on 17/6

Best time to book a flight from Heathrow

Have a flexible travel schedule? Discover the best time to fly from Heathrow 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.

Reviews of airlines flying direct to Heathrow

Get insights into the airlines that provide direct flights from Heathrow. 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 from Heathrow. Reviews last updated Cheapflights.
EVA Air
8.4
Very Good
1,205 reviews
Check prices

Entertainment

8.0

Crew

8.6

Boarding

8.4

Food

8.1

Overall

8.4

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

TPE - SEA

The flight and crew were exceptional as always when I fly with EVA.
EVA Air
8.4
Very Good
1,205 reviews
EVA Air
8.4
Very Good
1,205 reviews
Check prices

Entertainment

8.0

Crew

8.6

Boarding

8.4

Food

8.1

Overall

8.4

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

TPE - SEA

The flight and crew were exceptional as always when I fly with EVA.
ไห่หนานแอร์ไลน์
8.1
Very Good
39 reviews
EVA Air
8.4
Very Good
1,205 reviews
Check prices

Entertainment

8.0

Crew

8.6

Boarding

8.4

Food

8.1

Overall

8.4

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

TPE - SEA

The flight and crew were exceptional as always when I fly with EVA.
Thai Airways
7.7
Good
336 reviews
EVA Air
8.4
Very Good
1,205 reviews
Check prices

Entertainment

8.0

Crew

8.6

Boarding

8.4

Food

8.1

Overall

8.4

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

TPE - SEA

The flight and crew were exceptional as always when I fly with EVA.
China Southern
7.5
Good
99 reviews
EVA Air
8.4
Very Good
1,205 reviews
Check prices

Entertainment

8.0

Crew

8.6

Boarding

8.4

Food

8.1

Overall

8.4

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

TPE - SEA

The flight and crew were exceptional as always when I fly with EVA.

Related info for your journey

Access useful and relevant information related to your journey from Heathrow. This can include details such as airport transportation, visa requirements, travel insurance, luggage regulations, and any other information that can ensure a smooth and hassle-free travel experience. Please note that the information is based on general guidance and may need to be verified with official sources. Data last updated 19 June 2025.

  • Where can you fly direct from London Heathrow Airport?

    Currently, the most popular direct flight destination from London Heathrow Airport is Bangkok Suvarnabhumi Airport.

  • How much are direct flights from London Heathrow Airport?

    On average, a one-way direct flight from London Heathrow Airport will cost users approximately ฿10,781. If you're looking for a direct round-trip flight from London Heathrow Airport, you can expect to pay around ฿39,498.

  • How long is a direct flight from London Heathrow Airport?

    While the flight duration depends heavily on the destination, on average, travelers can expect non-stop flights from London Heathrow Airport to last approximately 11h 25m on average. The quickest direct flight from London Heathrow Airport at this time departs from London Heathrow Airport (11h 25m), while the longest leaves from London Heathrow Airport (11h 25m).

  • What is the best time of year to fly direct from London Heathrow Airport?

    If you're seeking the lowest price on a direct flight from London Heathrow Airport, January is worth consideration as prices are at their lowest, on average. In terms of the number of daily non-stop flights, June offers travelers the most options.

See more FAQs

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Thai Airways flights from Heathrow to Suvarnabhumi
EVA Air flights from Heathrow to Suvarnabhumi

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