Cheap flight from London to Hanoi from CNY 4,891

Frequently Asked Questions

• Which airlines offer direct flights from London to Hanoi?

  At the moment, you can catch a nonstop flight from London to Hanoi with the following airlines, including: KLM Royal Dutch Airlines Selected airlines are based on historical data collected from flight bookings users made on Trip.com within the last 90 days.

• How long does it take to fly from London (LON) to Hanoi (HAN) and what is the distance?

  It takes around 11 hours 32 minutes to fly from London (LON) to Hanoi (HAN).

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

  By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from London to Hanoi 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 London (LON) to Hanoi (HAN) the cheapest?

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

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

  After crunching the numbers on our October flight calendar, it's currently cheapest to fly from London to Hanoi on October 31, 2025 with Shenzhen Airlines, with prices starting at CNY 2,417.

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

  You can land at any one of the following hubs in Hanoi, with Heathrow Airport to Noi Bai International Airport (LHR-HAN) is by far the most common option on this route: Noi Bai International Airport (HAN).

• Is there any time difference between London and Hanoi?

  The time difference between Hanoi and London is 7h.

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

  Tickets can only be changed or canceled 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.