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Thai Airways flights from London Heathrow Airport to Bangkok Suvarnabhumi Airport (LHR - BKK)

LHR — BKK
18 Oct — 25 Oct1
1 adult
1 adult, Economy

Cheapflights users flying from London to Bangkok on Thai Airways typically fly into Bangkok Suvarnabhumi and depart from London Heathrow. Select your dates above for pricing.

Thai Airways flights from Heathrow to Suvarnabhumi in 2025

Find detailed information about Thai Airways flights from Heathrow to Suvarnabhumi. Explore the options provided by Thai Airways to plan your journey from Heathrow to Suvarnabhumi. Data last updated 18 September 2025.

One-way from

£437

Return from

£639

Popular in

December

Cheapest in

May

Average price (all airlines)

£611
Thai Airways
  • Thai Airways
  • 25/9
  • Nonstop
  • 11h 35m total
  • London to Bangkok
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Thai Airways
  • Thai Airways
  • 28/2-8/3
  • Nonstop
  • 24h 40m total
  • London to Bangkok
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Highest demand for flights from London Heathrow to Bangkok Suvarnabhumi; 5% potential price increase.
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Best time to find cheap flights from London Heathrow to Bangkok Suvarnabhumi; 2% potential price drop.
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Average price for all London Heathrow to Bangkok Suvarnabhumi flights (one-way and round-trip).
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  • Can I get a flight from London Heathrow Airport to Bangkok Suvarnabhumi Airport on Thai Airways for under £900?

    Cheapflights users have found 8 Thai Airways flights for under £900 on the LHR-BKK route. Prices on flights to Bangkok Suvarnabhumi Airport from London Heathrow Airport can vary based on many factors including dates. To look at price based on your preferred dates, click here.

  • How do most travelers feel about Thai Airways?

    634 Cheapflights users have left reviews for Thai Airways and have rated the airline 7.4/10. If you are looking to travel from London Heathrow Airport to Bangkok Suvarnabhumi Airport on Thai Airways, input your dates in the form above for our best prices!

Find Thai Airways flight deals from Heathrow to Suvarnabhumi

Cheapest Thai Airways flights from Heathrow to Suvarnabhumi
Explore the most affordable Thai Airways flight options available from Heathrow to Suvarnabhumi. Find the lowest fares with prices last updated on 18 September 2025.

Tue 23/921:25LHR - BKK
Nonstop11h 35mThai Airways
Mon 13/1000:30BKK - LHR
Nonstop12h 45mThai Airways
Deal found 16/9£676
Wed 17/921:25LHR - BKK
Nonstop11h 35mThai Airways
Sat 11/1000:30BKK - LHR
Nonstop12h 45mThai Airways
Deal found 16/9£684
Sun 21/912:30LHR - BKK
Nonstop11h 30mThai Airways
Wed 8/1000:30BKK - LHR
Nonstop12h 45mThai Airways
Deal found 18/9£686

Travel insights for Thai Airways flights from Heathrow to Suvarnabhumi

Get recent, data-driven insights about Thai Airways flights from Heathrow to Suvarnabhumi including ideal travel times, pricing trends, and more.

How far ahead should I book a flight from London Heathrow Airport to Bangkok Suvarnabhumi Airport with Thai Airways?

Use this chart to determine the optimal time to book a return flight from Heathrow to Suvarnabhumi. Price data was last updated on 12 September 2025.

Booking with Thai Airways 90 days in advance of your planned departure date is, on average, the best time to get cheap flights from London Heathrow Airport to Bangkok Suvarnabhumi Airport. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from London Heathrow Airport to Bangkok Suvarnabhumi Airport with Thai Airways?

Currently, the most affordable month to book a Thai Airways flight from London Heathrow Airport to Bangkok Suvarnabhumi Airport in June, with an average price of £577. Conversely, traveling with Thai Airways from London Heathrow Airport to Bangkok Suvarnabhumi Airport in January will be the most expensive, with an average cost of £628. Various factors influence flight prices, so comparing airlines, departure airports, and times can help reduce costs.

Best time to book a flight from Heathrow to Suvarnabhumi

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

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Fly from Heathrow to Suvarnabhumi on another airline

Consider alternative airlines that service the Suvarnabhumi area. Flight routes are based on user searches made on Cheapflights and were last updated on 18 September 2025.
Etihad Airways flights from London Heathrow to Bangkok Suvarnabhumi

See what others are saying about Thai Airways

Read reviews and see what other travellers are saying about their experiences with Thai Airways. Get insights from real passengers regarding the airline's services, customer satisfaction, and overall travel experience. Use these reviews to inform your decision when choosing Thai Airways for your next flight. Reviews last updated 18 September 2025.
Thai Airways
7.8
Good
350 reviews
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Overview

Comfort

7.5

Boarding

7.9

Food

7.3

Crew

8.3

Entertainment

6.9

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