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

Return flights

19 May - 29 May	Ryanair
06 May - 19 May	Ryanair
07 May - 11 May	Ryanair
31 May - 14 Jun	Ryanair
06 May - 10 May	Ryanair
17 May - 31 May	Pegasus Airlines
31 May - 15 Jun	Ryanair
31 May - 10 Jun	Ryanair
03 May - 09 May	Ryanair
27 May - 10 Jun	Ryanair
10 May - 31 May	Pegasus Airlines
03 May - 18 May	Ryanair
20 May - 31 May	Ryanair
16 May - 23 May	Ryanair
25 May - 14 Jun	Ryanair
24 May - 07 Jun	Ryanair
26 May - 09 Jun	Ryanair
13 May - 22 Jun	Emirates
22 May - 07 Jun	Ryanair
27 May - 03 Jun	Emirates

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

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 May from 650€

Return flights