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

BKK — LHR
14 Aug — 21 Aug1
1 adult
1 adult, Economy, 0 bags

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Enter your travel dates to find the best prices.

Cheapest Finnair flights from Suvarnabhumi to Heathrow
Explore the most affordable Finnair flight options available from Suvarnabhumi to Heathrow. Find the lowest fares with prices last updated on 15 July 2026.

Thu 23/707:05
BKK
-
LHR
1 stop32h 05m
Finnair
Thu 6/818:10
LHR
-
BKK
1 stop29h 20m
Finnair
Deal found 13/7฿33,774
Fri 17/707:05
BKK
-
LHR
1 stop19h 35m
Finnair
Fri 24/718:10
LHR
-
BKK
1 stop29h 20m
Finnair
Deal found 10/7฿33,908
Mon 20/707:05
BKK
-
LHR
1 stop32h 05m
Finnair
Sat 5/916:10
LHR
-
BKK
2 stops36h 55m
Finnair
Deal found 14/7฿34,108

  • How do most travelers feel about Finnair?

    The average rating from 1,419 Finnair reviews by Cheapflights users is 7.6 (out of a maximum rating of 10). If you are considering flying BKK-LHR with Cheapflights, apply your desired dates to the form above to see our best pricing for your trip to London Heathrow Airport with Finnair.

  • Can I get a flight from Bangkok Suvarnabhumi Airport to London Heathrow Airport on Finnair for under ฿40,167?

    Cheapflights currently has 4 BKK-LHR flights for under ฿40,167. Flights to London Heathrow Airport will vary based on many factors, like date and time. Click here to find the best price for your dates on Cheapflights.

Finnair flights from Suvarnabhumi to Heathrow in 2026

Find detailed information about Finnair flights from Suvarnabhumi to Heathrow. Explore the options provided by Finnair to plan your journey from Suvarnabhumi to Heathrow. Data last updated 15 July 2026.

One-way from

฿23,832

Return from

฿31,431

Popular in

August

Cheapest in

November

Average price (all airlines)

฿37,590
Finnair
  • Finnair
  • 11/8
  • 2 total stops
  • 26h 35m total
  • Bangkok to London
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Finnair
  • Finnair
  • 1/9-21/9
  • 2 total stops
  • 48h 05m total
  • Bangkok to London
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Highest demand for flights from Bangkok Suvarnabhumi to London Heathrow; 4% potential price increase.
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Best time to find cheap flights from Bangkok Suvarnabhumi to London Heathrow; 0% potential price drop.
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Average price for all Bangkok Suvarnabhumi to London Heathrow flights (one-way and round-trip).
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Rainfall in Heathrow by month

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

In terms of precipitation, rainfall in London Heathrow Airport ranges from 40.0 - 70.0 inches per month. January is typically the wettest month, when rainfall can reach 70.0 mm. July is typically the driest time to visit London Heathrow Airport when rainfall is around 40.0 mm.

Temperature in Heathrow by month

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

If weather is an important factor for your trip to London Heathrow Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 4.0 C).

Best time to book a flight from Suvarnabhumi to Heathrow

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

Browse thousands of different options on Cheapflights for your next trip

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Fly from Suvarnabhumi to Heathrow on another airline

Consider alternative airlines that service the Heathrow area. Flight routes are based on user searches made on Cheapflights and were last updated on 15 July 2026.
EVA Air flights from Bangkok Suvarnabhumi to London Heathrow
Thai Airways flights from Bangkok Suvarnabhumi to London Heathrow
Emirates flights from Bangkok Suvarnabhumi to London Heathrow

See what others are saying about Finnair

Read reviews and see what other travellers are saying about their experiences with Finnair. 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 Finnair for your next flight. Reviews last updated 15 July 2026.
Finnair
7.6
Good
1,419 reviews
Check prices
Overview

Crew

8.2

Comfort

7.4

Boarding

7.7

Entertainment

6.9

Food

6.7

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