Cheap Flights from Hanoi to London

FAQ

• Which airlines offer flights from Hanoi to London?

  At the moment, several airlines serve connecting flights from Hanoi to London, including: Qatar Airways Selected airlines are based on historical data collected from flight bookings made by users on Trip.com within the last 90 days.

• How long is the flight from Hanoi (HAN) to London (LON)?

  It takes about 13 hours 7 minutes to fly from Hanoi (HAN) to London (LON).

• When is the best time to book flights from Hanoi to London?

  By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from Hanoi to London is around 40 days (6 weeks) in advance, and the best time to fly is usually on Tuesday, Wednesday, and Saturday. Tuesday typically offers the cheapest flights for departure, while Saturday offers the best return deals.

• When are flight tickets from Hanoi (HAN) to London (LON) the cheapest?

  The cheapest months to fly from Hanoi to London is November, when demand for travel is lower.

• Which upcoming date is cheapest to fly from Hanoi to London on?

  After crunching the numbers on our October flight calendar, it's currently cheapest to fly from Hanoi to London on October 28, 2025 with Thai AirAsia, with prices starting at CAD 275.

• Which airports can I fly to for London from Hanoi?

  You can land at any one of the following hubs in London, with Noi Bai International Airport to Heathrow Airport (HAN-LHR) is by far the most common option on this route: London City Airport (LCY) London Gatwick Airport (LGW) Heathrow Airport (LHR) London Luton Airport (LTN) London Southend Airport (SEN) London Stansted Airport (STN).

• Is there any time difference between Hanoi and London?

  The time difference between London and Hanoi is 7h.

• How do I change or cancel my ticket from Hanoi to London?

  Tickets can only be changed or cancelled if permitted by airline policy. To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy. However, if the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.