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

LHR — BKK
14 Dec — 21 Dec1
1 adult
1 adult, Economy, 0 bags

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 14 November 2025.

One-way from

£483

Return from

£737

Popular in

December

Cheapest in

September

Average price (all airlines)

£652
Thai Airways
  • Thai Airways
  • 20/11
  • Nonstop
  • 11h 25m total
  • London to Bangkok
Thai Airways
  • Thai Airways
  • 25/11-15/12
  • Nonstop
  • 25h 00m total
  • London to Bangkok
Highest demand for flights from London Heathrow to Bangkok Suvarnabhumi; 5% potential price increase.
Best time to find cheap flights from London Heathrow to Bangkok Suvarnabhumi; 3% potential price drop.
Average price for all London Heathrow to Bangkok Suvarnabhumi flights (one-way and round-trip).
  • Can I get a flight from London Heathrow Airport to Bangkok Suvarnabhumi Airport on Thai Airways for under £684?

    Cheapflights users have found 8 Thai Airways flights for under £684 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.

Find Thai Airways flight deals from Heathrow to Suvarnabhumi

Enter your travel dates to find the best prices.

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 14 November 2025.

Tue 18/1121:35LHR - BKK
Nonstop11h 25mThai Airways
Wed 26/1100:05BKK - LHR
Nonstop13h 35mThai Airways
Deal found 12/11£720
Mon 17/1121:35LHR - BKK
Nonstop11h 25mThai Airways
Fri 5/1200:05BKK - LHR
Nonstop13h 35mThai Airways
Deal found 13/11£737
Sun 23/1121:35LHR - BKK
Nonstop11h 25mThai Airways
Thu 4/1200:05BKK - LHR
Nonstop13h 35mThai Airways
Deal found 13/11£739

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 7 November 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 £597. 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 £650. 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 14 November 2025.

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 14 November 2025.
Thai Airways
7.8
Good
361 reviews
Overview

Crew

8.3

Comfort

7.6

Entertainment

6.9

Food

7.3

Boarding

7.8

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