Cheapest one-way flights from Hanoi to London in September from $397

Best time to book flights for Hanoi (HAN) to London (LGW) flights at AirHint

AirHint found the following cheapest one-way flights from Hanoi (HAN) to London (LGW) in September 2025 (see full year).

One-Way flights

11 Sep Thai AirAsia
22 Sep Qatar Airways
16 Sep Qatar Airways
10 Sep Qatar Airways
26 Sep Qatar Airways
02 Sep AirAsia
01 Sep VietJet Air
23 Sep Malaysia Airlines
28 Sep Qatar Airways
21 Sep Qatar Airways

Also check the deals for return flights from Hanoi to London in September.

Skyscanner

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.

Book a cheap hotel in London

Cheap car rent in London