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

Return flights

20 Apr - 06 May	Lufthansa
21 Apr - 05 May	Lufthansa
27 Apr - 11 May	Lufthansa
22 Apr - 06 May	Lufthansa
20 Apr - 04 May	Lufthansa
29 Apr - 17 May	British Airways
27 Apr - 17 May	British Airways
23 Apr - 12 May	British Airways
27 Apr - 13 May	British Airways
27 Apr - 12 May	British Airways
14 Apr - 19 Apr	Lufthansa
15 Apr - 26 Apr	Lufthansa
02 Apr - 21 Apr	Lufthansa
23 Apr - 30 Apr	Lufthansa
01 Apr - 15 Apr	British Airways
08 Apr - 22 Apr	British Airways
13 Apr - 22 Apr	British Airways
15 Apr - 30 Apr	Lufthansa
13 Apr - 23 Apr	Lufthansa
02 Apr - 15 Apr	British Airways

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

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 April from 862€

Return flights