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Thai Airways flights from Chiang Mai to London Heathrow Airport (CNX - LHR)

CNX — LHR
6 May — 13 May1
1 adult

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 Heathrow in 2025

Find detailed information about Thai Airways flights from Chiang Mai to Heathrow. Explore the options provided by Thai Airways to plan your journey from Chiang Mai to Heathrow. Data last updated 1 May 2025.

One-way from

฿18,331

Return from

฿36,327

Popular in

July

Cheapest in

December

Average price (all airlines)

฿35,389
Thai Airways
  • Thai Airways
  • 29/6
  • 1 total stop
  • 21h 45m total
  • Chiang Mai to London
Search Deals
Thai Airways
  • Thai Airways
  • 4/9-17/9
  • 2 total stops
  • 49h 40m total
  • Chiang Mai to London
Search Deals
Highest demand for flights from Chiang Mai to London Heathrow; 11% potential price increase.
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Best time to find cheap flights from Chiang Mai to London Heathrow; 4% potential price drop.
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Average price for all Chiang Mai to London Heathrow flights (one-way and round-trip).
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Find Thai Airways flight deals from Chiang Mai to Heathrow

Best Thai Airways flights from Chiang Mai to Heathrow
Discover carefully curated Thai Airways flight deals from Chiang Mai to Heathrow that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 1 May 2025.

Thu 4/916:55CNX - LHR
1 stop20h 20mThai Airways
Wed 17/921:25LHR - CNX
1 stop29h 20mThai Airways
Deal found 1/5฿36,327

Travel insights for Thai Airways flights from Chiang Mai to Heathrow

Get recent, data-driven insights about Thai Airways flights from Chiang Mai to Heathrow including ideal travel times, pricing trends, and more.

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 Chiang Mai to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow 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 1 May 2025.
Thai Airways
7.7
Good
325 reviews
Check prices
Overview

Comfort

7.5

Crew

8.3

Boarding

7.8

Entertainment

6.8

Food

7.3

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