AirHint found the following cheapest return flights from London (LON) to Hanoi (HAN) in March 2026 (see full year).

Return flights

08 Mar - 23 Mar	Ryanair
08 Mar - 30 Mar	Ryanair
08 Mar - 16 Mar	Ryanair
08 Mar - 21 Mar	Ryanair
08 Mar - 18 Mar	Ryanair
08 Mar - 19 Mar	Ryanair
08 Mar - 22 Mar	Ryanair
08 Mar - 06 Apr	Ryanair
13 Mar - 15 Mar	Ryanair
08 Mar - 27 Mar	Ryanair
08 Mar - 20 Mar	Ryanair
09 Mar - 06 Apr	Air China
11 Mar - 01 Apr	Air China
05 Mar - 01 Apr	Air China
10 Mar - 08 Apr	Air China
11 Mar - 20 Apr	China Eastern
15 Mar - 08 Apr	Ryanair
15 Mar - 26 Apr	Ryanair
22 Mar - 06 Apr	Ryanair
01 Mar - 05 Apr	China Eastern

Also check the deals for one-way flights from London to Hanoi in March.

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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Cheapest return flights from London to Hanoi in March from 460€

Return flights