Find flights
Deals
When to book
Airlines
FAQs

Cheap flights from London Heathrow Airport to Thailand from £280

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 21/5. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — BKK
21 May — 28 May1
1 adult

Cheap flight deals from Heathrow to Thailand

Keep the following information in mind while searching for Heathrow to Thailand flight deals. Data was last updated 16 May 2025.

Round-trip from

£410

One-way from

£280

Popular in

December

Cheapest in

May

Average price

£412

Good round-trip deal

£657 or less

Good one-way deal

£430 or less
Hainan Airlines
  • Hainan Airlines
  • 4/6-10/6
  • 2 total stops
  • 44h 20m total
  • London to Thailand
Search Deals
Hainan Airlines
  • Hainan Airlines
  • 21/5
  • 1 total stop
  • 30h 00m total
  • London to Thailand
Search Deals
Highest demand for flights based on searches. 8% potential increase in price (£43 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£18 potential savings vs. average return price).
Search Deals
Average for round-trip flights in May 2025
Search Deals
Price to beat on a round-trip flight from London Heathrow to Thailand.
Search Deals
Price to beat on a one-way flight from London Heathrow to Thailand.
Search Deals

Find flight deals from Heathrow to Thailand

Cheapest flights from Heathrow to Thailand
Explore the most affordable flight options available from Heathrow to Thailand. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 16 May 2025.

Wed 21/522:00LHR - BKK
1 stop30h 00mHainan Airlines
Thu 12/619:20BKK - LHR
1 stop30h 10mHainan Airlines
Deal found 16/5£410
Tue 28/1022:00LHR - BKK
1 stop36h 55mChina Southern
Mon 10/1102:10BKK - LHR
1 stop23h 05mChina Southern
Deal found 15/5£411
Sat 31/521:20LHR - BKK
1 stop17h 35mChina Eastern
Thu 12/602:10BKK - LHR
1 stop22h 30mChina Eastern
Deal found 16/5£415
Sat 8/1121:10LHR - BKK
1 stop21h 40mShenzhen Airlines
Sun 23/1119:30BKK - LHR
1 stop30h 40mShenzhen Airlines
Deal found 15/5£421
Sun 1/620:25LHR - BKK
1 stop21h 45mAir China
Sun 15/619:35BKK - LHR
1 stop30h 55mAir China
Deal found 16/5£433
Mon 19/522:00LHR - BKK
2 stops38h 15mMultiple Airlines
Fri 23/512:10BKK - LHR
1 stop37h 40mMultiple Airlines
Deal found 15/5£486
Tue 24/621:05LHR - BKK
1 stop16h 30mAir India
Thu 24/714:45BKK - LHR
1 stop25h 30mAir India
Deal found 15/5£499
Tue 10/621:45LHR - HKT
1 stop15h 45mAir India
Mon 23/609:25HKT - LHR
1 stop15h 35mAir India
Deal found 15/5£510
Thu 12/622:00LHR - HKT
1 stop32h 50mAir China
Thu 26/619:25HKT - LHR
1 stop31h 05mAir China
Deal found 15/5£511
Wed 28/521:20LHR - HKT
1 stop19h 25mChina Eastern
Wed 11/623:05HKT - LHR
1 stop25h 35mChina Eastern
Deal found 15/5£512
Wed 28/509:00LHR - HKT
2 stops23h 05mAir France
Wed 11/607:35HKT - LHR
2 stops19h 50mAir France
Deal found 16/5£515
Mon 2/614:45LHR - HKT
1 stop21h 40mEtihad Airways
Mon 16/600:55HKT - LHR
1 stop20h 20mEtihad Airways
Deal found 15/5£521

Cheapflights Fare Finder

Customise your flight search to find flights from Heathrow 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, Cheapflights users made 858,174 searches. Data last updated 16 May 2025.
Use the filters below to find and compare flights from London Heathrow Airport to Thailand that are best for you.

Fly from

Heathrow

Fly to

Thailand

Route

Depart

Return

Price

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Wed 4/6

22:00-00:20

1 stop20h 20m

Bangkok Suvarnabhumi

Tue 10/6

01:30-19:30

1 stop24h 00m

£410

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Tue 28/10

22:00-17:55

1 stop36h 55m

Bangkok Suvarnabhumi

Mon 10/11

02:10-18:15

1 stop23h 05m

£411

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Sat 31/5

21:20-20:55

1 stop17h 35m

Bangkok Suvarnabhumi

Thu 12/6

02:10-18:40

1 stop22h 30m

£415

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Sat 8/11

21:10-01:50

1 stop21h 40m

Bangkok Suvarnabhumi

Fri 28/11

03:05-19:10

1 stop23h 05m

£421

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Sun 1/6

22:40-00:10

1 stop19h 30m

Bangkok Suvarnabhumi

Sun 8/6

19:35-20:30

1 stop30h 55m

£433

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Mon 9/6

22:00-10:00

2 stops30h 00m

Bangkok Suvarnabhumi

Fri 13/6

19:30-19:50

1 stop30h 20m

£483

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Tue 24/6

12:30-13:35

1 stop19h 05m

Bangkok Suvarnabhumi

Tue 1/7

14:45-19:30

1 stop34h 45m

£499

LondonPhuket City

LHR - HKT

LHRHKT

London Heathrow

Tue 10/6

09:45-19:30

1 stop27h 45m

Phuket City

Wed 25/6

09:25-19:00

1 stop15h 35m

£510

LondonPhuket City

LHR - HKT

LHRHKT

London Heathrow

Thu 12/6

22:00-12:50

1 stop32h 50m

Phuket City

Tue 24/6

19:25-20:30

1 stop31h 05m

£511

LondonPhuket City

LHR - HKT

LHRHKT

London Heathrow

Wed 28/5

21:20-22:45

1 stop19h 25m

Phuket City

Wed 11/6

23:05-18:40

1 stop25h 35m

£512

Flights are sorted by cheapest return flights first.

Deals found on 16/5

Showing 1-10 of 60 results
1
2
3
...
6

Best time to book a flight from Heathrow to Thailand

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

Cheapflights Insights

Everything you need to know about your flight from London Heathrow Airport to Thailand

What is the cheapest month to book a flight from London Heathrow Airport to Thailand?

Currently, May is the cheapest month in which you can book a flight from London Heathrow Airport to Thailand (average of £717). Flying from London Heathrow Airport to Thailand in December is currently the most expensive (average of £1,123). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from LHR to TH?

Find hourly flight availability from Heathrow to Thailand. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 16 May 2025.

When flying from London Heathrow Airport to Thailand, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Weekly flight availability from London Heathrow Airport to Thailand

Explore weekly flight availability from Heathrow to Thailand. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 16 May 2025.

The most flights from LHR to TH0 are scheduled on a Monday (7 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (7 on average).

Rainfall in Thailand by month

Plan your trip to Thailand by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Thailand ranges from 10.0 - 320.0 inches per month. September is typically the wettest month, when rainfall can reach 320.0 mm. January is typically the driest time to visit Thailand when rainfall is around 10.0 mm.

Temperature in Thailand by month

Plan your trip to Thailand by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Thailand, use this chart to help with planning. For those seeking warmer temperatures, April is the ideal time of year to visit, when temperatures reach an average of 30.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 26.0 C).

Reviews of airlines servicing Thailand

Get insights into the airlines that provide service to Thailand. 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 to Thailand. Reviews last updated 16 May 2025.
Peruse reviews from past customers who have flown with EVA Air, China Airlines and Hainan Airlines from London to Thailand to help guide your decision. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
EVA Air
8.4
Very Good
1,192 reviews
Check prices

Entertainment

8.0

Food

8.1

Crew

8.6

Overall

8.4

Boarding

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
1,192 reviews
EVA Air
8.4
Very Good
1,192 reviews
Check prices

Entertainment

8.0

Food

8.1

Crew

8.6

Overall

8.4

Boarding

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 Airlines
8.3
Very Good
732 reviews
EVA Air
8.4
Very Good
1,192 reviews
Check prices

Entertainment

8.0

Food

8.1

Crew

8.6

Overall

8.4

Boarding

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.
Hainan Airlines
8.1
Very Good
39 reviews
EVA Air
8.4
Very Good
1,192 reviews
Check prices

Entertainment

8.0

Food

8.1

Crew

8.6

Overall

8.4

Boarding

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.
Singapore Airlines
8.1
Very Good
1,294 reviews
EVA Air
8.4
Very Good
1,192 reviews
Check prices

Entertainment

8.0

Food

8.1

Crew

8.6

Overall

8.4

Boarding

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

Find useful and relevant information for your journey from Heathrow to Thailand. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What are the cheapest airlines to fly from London Heathrow Airport to Thailand one-way?

    For one-way options, check prices for Hainan Airlines. According to our data, you can fly for as low as £280. Users have also found prices from £283 and £293 on Air China and China Southern, respectively.

  • What are the most popular routes from London Heathrow Airport to Thailand?

    Most travelers choose London Heathrow - Bangkok Suvarnabhumi, London Heathrow - Phuket City or London Heathrow - Bangkok Don Mueang Intl when deciding on the best route from London Heathrow Airport to Thailand.

  • What are the most reliable airlines from London Heathrow Airport to Thailand?

    The top 3 most reliable airlines when flying from London Heathrow Airport to Thailand are Thai Airways (51%), EVA Air (50%) and Air Canada (46%).

  • What are the cheapest flights from London Heathrow Airport to Thailand?

    On average you can expect to pay £2,708 for a flight from London Heathrow Airport to Thailand. The cheapest flight overall is £365 while the most popular route, (London Heathrow - Bangkok Suvarnabhumi) is currently priced at £386.

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

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

  • How can I find direct flights from Heathrow to Thailand?

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

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

    Yes. Cheapflights offers flight deals from Heathrow to Thailand by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from London Heathrow Airport to Thailand?

    Currently, May is the cheapest month in which you can book a flight from London Heathrow Airport to Thailand (average of £717). Flying from London Heathrow Airport to Thailand in December is currently the most expensive (average of £1,123). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Heathrow to Thailand

See prices for flight routes from nearby airports that may be better suited for you.
Heathrow to Suvarnabhumi flights
Heathrow to Haneda flights
Gatwick to Suvarnabhumi flights
London City to Suvarnabhumi flights
Stansted to Suvarnabhumi flights
Heathrow to Narita flights
Gatwick to Narita flights
Gatwick to Haneda flights
Heathrow to Hong Kong flights
Heathrow to Kuala Lumpur Intl flights
Heathrow to Colombo flights
Heathrow to New Delhi flights
London City to Narita flights
Stansted to Narita flights
Heathrow to Mumbai flights
Heathrow to Incheon Intl flights
Heathrow to Manila flights
Heathrow to Singapore flights
London City to Haneda flights
Heathrow to Denpasar flights
Gatwick to Singapore flights
Gatwick to Manila flights
Stansted to Denpasar flights
Gatwick to Denpasar flights
London City to Denpasar flights
Stansted to Manila flights
Heathrow to Bangalore flights
Luton to Suvarnabhumi flights
Heathrow to Hongqiao Intl flights
London City to Manila flights
Heathrow to Hyderabad flights
Gatwick to Kuala Lumpur Intl flights
Heathrow to Islamabad flights
Gatwick to Colombo flights
Stansted to Colombo flights
Heathrow to Gimpo Intl flights
Stansted to Kuala Lumpur Intl flights
Heathrow to Ho Chi Minh City flights
London City to Kuala Lumpur Intl flights
Gatwick to New Delhi flights
Heathrow to Lahore flights
Stansted to New Delhi flights
Heathrow to Taiwan Taoyuan Intl flights
Gatwick to Hong Kong flights
Heathrow to Chennai flights
Heathrow to Kathmandu flights
Stansted to Mumbai flights
London City to Hong Kong flights
Gatwick to Mumbai flights
Heathrow to Pu Dong flights

Top 10 airlines flying from Heathrow to Thailand

Discover the top 10 airlines that operate flights from Heathrow to Thailand. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 16 May 2025.
AirlineCheapestAverageFlexibilityOn-time
SAUDIACheapest£342Average£601FlexibilityNo cancel feeOn-time86%
Search SAUDIA flights
Shenzhen AirlinesCheapest£371Average£423FlexibilityNo cancel feeOn-time63%
Search Shenzhen Airlines flights
Hainan AirlinesCheapest£386Average£470FlexibilityNo cancel feeOn-time61%
Search Hainan Airlines flights
Royal Brunei AirlinesCheapest£473Average£549FlexibilityNo cancel feeOn-time84%
Search Royal Brunei Airlines flights
Air FranceCheapest£489Average£736FlexibilityNo cancel feeOn-time77%
Search Air France flights
Norse Atlantic UKCheapest£491Average£576FlexibilityNo cancel feeOn-timeN/A
Search Norse Atlantic UK flights
KLMCheapest£491Average£700FlexibilityNo cancel feeOn-time75%
Search KLM flights
SWISSCheapest£501Average£756FlexibilityNo cancel feeOn-time79%
Search SWISS flights
Kuwait AirwaysCheapest£515Average£632FlexibilityNo cancel feeOn-time64%
Search Kuwait Airways flights
Turkish AirlinesCheapest£516Average£695FlexibilityNo cancel feeOn-time77%
Search Turkish Airlines flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Heathrow to Thailand?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Heathrow to Thailand. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

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

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Heathrow to Thailand.

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

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

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

Of course! You can now track prices for flights from Heathrow to Thailand and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.
Site
©2025 Cheapflights