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

BKK — LHR
20 Sep — 27 Sep1
1 adult
1 adult, Economy, 0 bags

Find Finnair flight deals from Suvarnabhumi to Heathrow

Enter your travel dates to find the best prices.

Cheapest Finnair flights from Suvarnabhumi to Heathrow

Sat 5/907:05 -
1 stop35h 30m
Fri 18/910:20 -
1 stop37h 10m
Deal found 18/8฿30,085
Fri 4/907:05 -
1 stop19h 35m
Mon 28/907:30 -
1 stop16h 00m
Deal found 17/8฿32,746
Fri 4/907:05 -
1 stop19h 35m
Tue 15/907:30 -
1 stop16h 00m
Deal found 17/8฿33,370

  • How do most travelers feel about Finnair?

    The average rating from 1,427 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 ฿39,413?

    Cheapflights currently has 4 BKK-LHR flights for under ฿39,413. 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

One-way from

฿17,999

Return from

฿30,085

Popular in

August

Cheapest in

November

Average price (all airlines)

฿38,034
Finnair
  • Finnair
  • 7/1
  • 1 total stop
  • 35h 00m total
  • Bangkok to London
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Finnair
  • Finnair
  • 5/9-18/9
  • 2 total stops
  • 72h 40m total
  • Bangkok to London
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Highest demand for flights from Bangkok Suvarnabhumi to London Heathrow; 5% 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

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

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

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Fly from Suvarnabhumi to Heathrow on another airline

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Emirates flights from Bangkok Suvarnabhumi to London Heathrow

See what others are saying about Finnair

Finnair
7.6
Good
1,427 reviews
Check prices
Overview

Boarding

7.7

Crew

8.2

Comfort

7.5

Entertainment

6.9

Food

6.7

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