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

CNX — LON
12 Apr — 19 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 13 March 2026.

One-way from

฿18,166

Return from

฿49,669

Popular in

April

Cheapest in

October

Average price (all airlines)

฿35,053
Thai Airways
  • Thai Airways
  • 20/8
  • 1 total stop
  • 21h 45m total
  • Chiang Mai to London
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Thai Airways
  • Thai Airways
  • 1/8-3/8
  • 2 total stops
  • 32h 55m total
  • Chiang Mai to London
Search Deals
Highest demand for flights from Chiang Mai to London; 15% 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 ฿35,181?

    Cheapflights users have found 10 Thai Airways flights for under ฿35,181 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.

Best Thai Airways flights from Chiang Mai to London
Discover carefully curated Thai Airways flight deals from Chiang Mai to London that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 13 March 2026.

Sat 1/809:25
CNX
-
LHR
1 stop15h 50m
Thai Airways
Mon 3/821:25
LHR
-
CNX
1 stop17h 05m
Thai Airways
Deal found 8/3฿49,669
Fri 24/709:25
CNX
-
LHR
1 stop15h 50m
Thai Airways
Mon 27/712:30
LHR
-
CNX
1 stop14h 15m
Thai Airways
Deal found 8/3฿53,347
Fri 24/709:25
CNX
-
LHR
1 stop15h 50m
Thai Airways
Sun 26/712:30
LHR
-
CNX
1 stop14h 15m
Thai Airways
Deal found 8/3฿53,347

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.

Browse thousands of different options on Cheapflights for your next trip

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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 13 March 2026.
Thai Airways
7.8
Good
392 reviews
Check prices
Overview

Boarding

7.9

Entertainment

6.8

Comfort

7.6

Food

7.4

Crew

8.4

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