LHR → CNX
Cheap flights from London to Chiang Mai
We track fares from London to Chiang Mai, Thailand every day. Across 57 prices we've logged, the cheapest was €660 return and a typical fare runs around €734. The cheapest month to fly is usually Oct 2026.
Cheapest seen
€660
Typical price
€734
Cheapest month
Oct 2026
Non-stop
With a stop
No live deal on this exact route right now — but the typical fare is around €734. Search your dates below, or browse all deals to Thailand.
Cheapest months to fly
The typical cheapest fare by month, from our tracking — a guide only. Check the live price on Aviasales before booking.
| Month | Typical from | Check price |
|---|---|---|
| Oct 2026 | €721 | Check on Aviasales → |
Each link opens the live Aviasales search for that month, where you can pick the exact cheapest dates.
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London to Chiang Mai: the basics
- Route
- London (LHR) → Chiang Mai (CNX)
- Distance
- 9,015 km
- Non-stop
- No (with a stop)
- Airlines seen
- British Airways, Air China, Etihad Airways, LOT Polish Airlines, China Eastern
Planning the trip? Thailand: what to see and when to go covers where to go and when.
Where these flights connect
There is no non-stop flight from London to Chiang Mai. Based on the airlines that fly this route, connections are usually through Abu Dhabi, Warsaw — worth checking when you compare fares.