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Thai Airways flights from Chiang Mai to London (CNX - LON)

CNX — LON
1 Apr — 8 Apr1
1 adult
1 adult, Economy, 0 bags

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

Thai Airways flights from Chiang Mai to London in 2026

Find detailed information about Thai Airways flights from Chiang Mai to London. Explore the options provided by Thai Airways to plan your journey from Chiang Mai to London. Data last updated 2 March 2026.

One-way from

฿18,014

Return from

฿48,181

Popular in

April

Cheapest in

February

Average price (all airlines)

฿33,981
Thai Airways
  • Thai Airways
  • 20/4
  • 1 total stop
  • 20h 20m total
  • Chiang Mai to London
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Thai Airways
  • Thai Airways
  • 24/7-27/7
  • 2 total stops
  • 32h 55m total
  • Chiang Mai to London
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Highest demand for flights from Chiang Mai to London; 17% potential price increase.
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Best time to find cheap flights from Chiang Mai to London; 5% potential price drop.
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Average price for all Chiang Mai to London flights (one-way and round-trip).
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  • Can I get a flight from Chiang Mai to London on Thai Airways for under ฿34,105?

    Cheapflights users have found 2 Thai Airways flights for under ฿34,105 on the CNX-LON route. Prices on flights to London from Chiang Mai 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 Chiang Mai to London

Enter your travel dates to find the best prices.

Cheapest Thai Airways flights from Chiang Mai to London
Explore the most affordable Thai Airways flight options available from Chiang Mai to London. Find the lowest fares with prices last updated on 2 March 2026.

Wed 15/409:25
CNX
-
LHR
1 stop15h 50m
Thai Airways
Sun 26/412:30
LHR
-
CNX
1 stop14h 15m
Thai Airways
Deal found 27/2฿56,118

Rainfall in London by month

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

In terms of precipitation, rainfall in London 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 when rainfall is around 40.0 mm.

Temperature in London by month

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

If weather is an important factor for your trip to London, 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 Chiang Mai to London

Have a flexible travel schedule? Discover the best time to fly to London from Chiang Mai 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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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 2 March 2026.
Thai Airways
7.8
Good
388 reviews
Check prices
Overview

Comfort

7.6

Boarding

7.9

Crew

8.4

Entertainment

6.8

Food

7.4

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