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Cheap flights from London Heathrow Airport to Thailand from £240

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from London Heathrow Airport to Thailand departing on 28/8. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from London Heathrow Airport to Thailand

Cheap return flights

Shenzhen Airlines Logo
22:05 - 02:15LHR-BKK
22h 10m1 stop
Shenzhen Airlines Logo
19:30 - 20:00BKK-LHR
30h 30m1 stop
£332Shenzhen Airlines
Find Deal
Mon, 1 Sep - Thu, 2 Oct
Shenzhen Airlines Logo
22:05 - 02:15LHR-BKK
22h 10m1 stop
Shenzhen Airlines Logo
03:15 - 20:00BKK-LHR
22h 45m1 stop
£334Shenzhen Airlines
Find Deal
Mon, 1 Sep - Tue, 30 Sep
Shenzhen Airlines Logo
22:05 - 11:10LHR-BKK
31h 05m1 stop
Shenzhen Airlines Logo
03:15 - 19:50BKK-LHR
22h 35m1 stop
£335Shenzhen Airlines
Find Deal
Fri, 12 Sep - Sun, 28 Sep
Etihad Airways Logo
14:45 - 23:35LHR-HKT
26h 50m1 stop
Etihad Airways Logo
00:55 - 15:15HKT-LHR
20h 20m1 stop
£508Etihad Airways
Find Deal
Mon, 1 Sep - Tue, 30 Sep
Etihad Airways Logo
21:45 - 08:30LHR-HDY
28h 45m2 stops
Etihad Airways Logo
09:20 - 12:45HDY-LHR
33h 25m2 stops
£649Etihad Airways
Find Deal
Sat, 13 Sep - Sat, 20 Sep
Thai Airways Logo
12:30 - 17:15LHR-TDX
22h 45m1 stop
Thai Airways Logo
17:50 - 07:15TDX-LHR
19h 25m1 stop
£747Thai Airways
Find Deal
Sun, 14 Sep - Sun, 21 Sep
Thai Airways Logo
12:30 - 14:00LHR-HDY
19h 30m1 stop
Thai Airways Logo
20:40 - 19:15HDY-LHR
28h 35m1 stop
£780Thai Airways
Find Deal
Sat, 13 Sep - Sat, 20 Sep
EVA Air Logo
21:35 - 12:40LHR-TDX
33h 05m1 stop
EVA Air Logo
17:50 - 19:20TDX-LHR
31h 30m1 stop
£870EVA Air
Find Deal
Fri, 29 Aug - Fri, 5 Sep
Qatar Airways Logo
08:40 - 16:50LHR-UTP
25h 10m2 stops
Qatar Airways Logo
13:00 - 06:15UTP-LHR
24h 15m2 stops
£3,351Qatar Airways
Find Deal
Tue, 2 Dec - Wed, 17 Dec
Qatar Airways Logo
08:40 - 16:50LHR-UTP
25h 10m2 stops
Qatar Airways Logo
13:00 - 12:10UTP-LHR
30h 10m2 stops
£3,425Qatar Airways
Find Deal
Wed, 3 Dec - Fri, 19 Dec

Shenzhen Airlines flights from London Heathrow Airport to Thailand

Our best Shenzhen Airlines deals on London Heathrow Airport to Thailand flight tickets
Shenzhen Airlines
1 Sept
LHR22:05London Heathrow
22h 10m
1 stop
BKK02:15Bangkok Suvarnabhumi
2 Oct
BKK19:30Bangkok Suvarnabhumi
30h 30m
1 stop
LHR20:00London Heathrow
£332
Find similar
Shenzhen Airlines
1 Sept
LHR22:05London Heathrow
22h 10m
1 stop
BKK02:15Bangkok Suvarnabhumi
30 Sept
BKK03:15Bangkok Suvarnabhumi
22h 45m
1 stop
LHR20:00London Heathrow
£334
Find similar
Shenzhen Airlines
12 Sept
LHR22:05London Heathrow
31h 05m
1 stop
BKK11:10Bangkok Suvarnabhumi
28 Sept
BKK03:15Bangkok Suvarnabhumi
22h 35m
1 stop
LHR19:50London Heathrow
£335
Find similar

Finnair flights from London Heathrow Airport to Thailand

Our best Finnair deals on London Heathrow Airport to Thailand flight tickets
Finnair
11 Aug
LHR10:20London Heathrow
37h 10m
1 stop
BKK05:30Bangkok Suvarnabhumi
11 Oct
BKK07:10Bangkok Suvarnabhumi
35h 25m
1 stop
LHR12:35London Heathrow
£660
Find similar
Finnair
11 Aug
LHR16:10London Heathrow
31h 20m
1 stop
BKK05:30Bangkok Suvarnabhumi
6 Oct
BKK07:05Bangkok Suvarnabhumi
38h 05m
1 stop
LHR15:10London Heathrow
£661
Find similar
Finnair
11 Aug
LHR09:30London Heathrow
38h 00m
1 stop
BKK05:30Bangkok Suvarnabhumi
6 Oct
BKK07:05Bangkok Suvarnabhumi
35h 05m
1 stop
LHR12:10London Heathrow
£662
Find similar

momondo Fare Finder

 
Customise your flight search to find flights from London Heathrow Airport to Thailand 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, momondo users made 279,928 searches. Data last updated 1 August 2025.
Use the filters below to find and compare flights from London Heathrow Airport to Thailand that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Mon 1/9

22:05-02:15

1 stop22h 10m

Bangkok Suvarnabhumi

Thu 2/10

19:30-20:00

1 stop30h 30m

£332

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Mon 1/9

22:05-02:15

1 stop22h 10m

Bangkok Suvarnabhumi

Tue 30/9

03:15-20:00

1 stop22h 45m

£334

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Fri 12/9

22:05-11:10

1 stop31h 05m

Bangkok Suvarnabhumi

Sun 28/9

03:15-19:50

1 stop22h 35m

£335

LondonPhuket City

LHR - HKT

LHRHKT

London Heathrow

Mon 1/9

14:45-23:35

1 stop26h 50m

Phuket City

Tue 30/9

00:55-15:15

1 stop20h 20m

£508

LondonHat Yai

LHR - HDY

LHRHDY

London Heathrow

Sat 13/9

21:45-08:30

2 stops28h 45m

Hat Yai

Sat 20/9

09:20-12:45

2 stops33h 25m

£649

LondonTrat

LHR - TDX

LHRTDX

London Heathrow

Sun 14/9

12:30-17:15

1 stop22h 45m

Trat

Sun 21/9

17:50-07:15

1 stop19h 25m

£747

LondonHat Yai

LHR - HDY

LHRHDY

London Heathrow

Sat 13/9

12:30-14:00

1 stop19h 30m

Hat Yai

Sat 20/9

20:40-19:15

1 stop28h 35m

£780

LondonTrat

LHR - TDX

LHRTDX

London Heathrow

Fri 29/8

21:35-12:40

1 stop33h 05m

Trat

Fri 5/9

17:50-19:20

1 stop31h 30m

£870

LondonRayong

LHR - UTP

LHRUTP

London Heathrow

Tue 2/12

08:40-16:50

2 stops25h 10m

Rayong Utapao Rayong Pattaya

Wed 17/12

13:00-06:15

2 stops24h 15m

£3,351

LondonRayong

LHR - UTP

LHRUTP

London Heathrow

Wed 3/12

08:40-16:50

2 stops25h 10m

Rayong Utapao Rayong Pattaya

Fri 19/12

13:00-12:10

2 stops30h 10m

£3,425

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Thailand from

How to get the cheapest flight ticket from London Heathrow Airport to Thailand

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Thailand?

In general, May is the cheapest month to fly from London Heathrow Airport to Thailand. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around £624. If you are unable to visit Thailand during the month of May, then departing from London Heathrow Airport during the month June is also very affordable. Most momondo users find prices during this month for around £629.

What is the cheapest day to depart on your flight to Thailand?

The cheapest day to depart on your flight to Thailand is on a Wednesday when prices can be found for as low as £747. This is often the case because there is less demand to fly during this day of the week. On the other hand, Saturday is the most expensive day to depart from London Heathrow Airport because it is more convenient for both business and leisure travellers. As a result, prices tend to be around £797.

What is the cheapest time of day to depart on your flight to Thailand?

Our data shows that the cheapest London Heathrow Airport to Thailand flights are usually those with departure times at midday. Our users have found flights to Thailand at midday for as low as £656. In contrast, the most expensive time of day to depart to Thailand is in the afternoon when prices are around £826.

What is the cheapest London Heathrow to Thailand flight route?

Fly from London Heathrow to Bangkok Suvarnabhumi for the best London Heathrow - Thailand flight prices

How far in advance should I book a flight to Thailand?

You are more likely to see cheaper flights to Thailand from London Heathrow Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Thailand for around £714 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Thailand from London Heathrow Airport for as low as £659 on momondo.

What cabin class options are available on London Heathrow to Thailand flights?

There are 4 cabin classes available to choose from on London Heathrow to Thailand flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on London Heathrow Airport to Thailand flights?

No. A direct flight is the cheapest option for a flight between London Heathrow Airport to Thailand.

Cheap London Heathrow Airport to Thailand flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from London Heathrow Airport to Thailand

Best price found

£240

Fastest flight time

14h 10m

Direct flights

Every day

Airports in Thailand

8 airports
The best one-way flight to Thailand from London Heathrow Airport in the past 72 hours is £240. The best return flight deal from London Heathrow Airport to Thailand found on momondo in the last 72 hours is £332.
The fastest flight from London Heathrow Airport to Thailand takes 14h 10m
Direct flights go from London Heathrow Airport to Thailand every day.
There are 8 airports near Thailand: Phuket City (HKT), Bangkok Suvarnabhumi (BKK), Bangkok Don Mueang Intl (DMK), Trat (TDX), Chiang Mai (CNX), Hat Yai (HDY), Ko Samui (USM), Krabi (KBV)
Search flight deals

  • When did momondo last update prices for flights from London Heathrow Airport to Thailand?

    Prices for flights from London Heathrow Airport to Thailand are refreshed on a daily basis.

  • How many operators does momondo search for flights from London Heathrow Airport to Thailand?

  • How old do you have to be to fly from London Heathrow Airport to Thailand?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from London Heathrow Airport to Thailand.

  • What documentation or ID do you need to fly to Thailand?

    The required travel and health documents for your Thailand trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Thailand. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular plane model from London Heathrow Airport to Thailand?

Best airlines flying from London Heathrow Airport to Thailand

Compare and see reviews for airlines that fly from London Heathrow Airport to Thailand with momondo
Airline
Rating
Free Cancellation
Price
Bangkok AirwaysPriceFrom £114Free CancellationRating
8.0
112 reviews
Search Bangkok Airways flights
SAUDIAPriceFrom £341Free CancellationRating
7.4
627 reviews
Search SAUDIA flights
Hainan AirlinesPriceFrom £384Free CancellationRating
8.2
43 reviews
Search Hainan Airlines flights
Royal Brunei AirlinesPriceFrom £456Free CancellationRating
5.7
7 reviews
Search Royal Brunei Airlines flights
Norse Atlantic UKPriceFrom £462Free CancellationRating
7.2
47 reviews
Search Norse Atlantic UK flights
SWISSPriceFrom £492Free CancellationRating
7.5
1,686 reviews
Search SWISS flights
KLMPriceFrom £494Free CancellationRating
7.8
1,383 reviews
Search KLM flights
Air FrancePriceFrom £495Free CancellationRating
7.5
1,465 reviews
Search Air France flights
LufthansaPriceFrom £497Free CancellationRating
6.8
7,275 reviews
Search Lufthansa flights
Turkish AirlinesPriceFrom £516Free CancellationRating
7.3
3,933 reviews
Search Turkish Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from London to Thailand?

It is quick and easy to find London to Thailand flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Thailand that suits you.

Can I find flights from London to Thailand with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for London to Thailand flights to just show those with flexible booking policies.

How can momondo help me find flights from London to Thailand?

Once all potential London to Thailand flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from London to Thailand right now. Can momondo alert me if prices change?

Price alerts on flights to Thailand from London are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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