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

Return flights

10 Apr - 16 May	Air China
25 Apr - 11 May	Air China
13 Apr - 29 Apr	Wizz Air Malta
25 Apr - 16 May	easyJet
15 Apr - 30 Apr	Etihad Airways
17 Apr - 30 Apr	Etihad Airways
13 Apr - 26 Apr	Etihad Airways
15 Apr - 03 May	Etihad Airways
16 Apr - 02 May	easyJet
12 Apr - 26 Apr	Air China
15 Apr - 22 Apr	Air China
09 Apr - 23 Apr	Air China
29 Apr - 10 May	Air China
15 Apr - 06 May	Air China
17 Apr - 25 Apr	Etihad Airways
20 Apr - 03 May	Etihad Airways
01 Apr - 08 Apr	Wizz Air Malta
13 Apr - 23 Apr	Etihad Airways
15 Apr - 02 May	Air China
22 Apr - 04 May	Etihad 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 $641

Return flights