Cheap flights from London to Hanoi

Q: How much are flights normally?

£ 493. If you see flights from London to Hanoi for less than this, you've found a good deal.

Q: When is the best time to book cheap flights?

24 weeks. If you want cheap flights from London to Hanoi, this is the best time to book.

Q: What are the cheapest airlines?

British Airways, China Southern Airlines, Emirates, KLM, Qatar Airways. These airlines usually offer the cheapest flights from London to Hanoi.

Q: Can I fly direct to Hanoi?

Vietnam Airlines. You can fly non-stop from London to Hanoi with these airlines.

Q: What airlines fly indirectly?

Qatar Airways, Emirates, Turkish Airlines, Thai Airways International, Air France. These airlines fly from London to Hanoi, but you’ll have at least one layover.

Q: When is high season?

December. This is the most expensive time to fly to Hanoi. If this is when you want to go, book your flight from London in advance.

Q: When is the cheapest time to fly?

May. Flights from London to Hanoi are usually cheaper at this time of year.

Q: How long is the flight?

11 hrs 45 mins. This is the shortest flight time from London to Hanoi.

Q: How long should I stay in Hanoi?

14 days. Most people spend this amount of time in Hanoi.

from as little as £411

26 nights in Hanoi, departing London Heathrow on 14 / Sep / 2025 with China Southern Airlines (price found 25 hours ago)

Subject to availability, prices correct of the last 24 hours

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Cheap return flights from London to Hanoi

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All prices shown are per person based on return flights only. Prices found in the last 48 hours.

The London / Hanoi route

All 9244 km of it

Cheap flight deals for this route

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Hanoi flight facts

What you need to know

How much are flights normally?

£ 493

If you see flights from London to Hanoi for less than this, you've found a good deal.

When is the best time to book cheap flights?

24 weeks

If you want cheap flights from London to Hanoi, this is the best time to book.

What are the cheapest airlines?

British Airways
China Southern Airlines
Emirates
KLM
Qatar Airways

These airlines usually offer the cheapest flights from London to Hanoi.

Can I fly direct to Hanoi?

Vietnam Airlines

You can fly non-stop from London to Hanoi with these airlines.

What airlines fly indirectly?

Qatar Airways
Emirates
Turkish Airlines
Thai Airways International
Air France

These airlines fly from London to Hanoi, but you’ll have at least one layover.

When is high season?

December

This is the most expensive time to fly to Hanoi. If this is when you want to go, book your flight from London in advance.

When is the cheapest time to fly?

Flights from London to Hanoi are usually cheaper at this time of year.

How long is the flight?

11 hrs 45 mins

This is the shortest flight time from London to Hanoi.

How long should I stay in Hanoi?

14 days

Most people spend this amount of time in Hanoi.

Alternative flights from the UK to Hanoi

Check out prices for other routes

Manchester to Hanoi

from £634 pp

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Edinburgh to Hanoi

from £611 pp

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Birmingham to Hanoi

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London City Airport to Hanoi

from £1,121 pp

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London Gatwick to Hanoi

from £595 pp

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London Heathrow to Hanoi

from £411 pp

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London Stansted to Hanoi

from £692 pp

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Alternative flights from London to Hanoi

You might find cheaper flights nearby

Hong Kong from London

from £428 pp

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Bangkok from London

from £415 pp

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Phnom Penh from London

from £386 pp

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Ho Chi Minh from London

from £376 pp

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Koh Samui from London

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Dhaka from London

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Today alone, Netflights has searched over 31,647 flights. 14 / Sep / 2025 is currently the lowest priced day of the year to fly the London/Hanoi route. There are around 4,794 flights on any given week from the UK to Hanoi and the cheapest month to fly right now is September.

Not suitable? Try running another search or viewing all cheap flight deals.

Key facts about Hanoi

Currency

Vietnamese d?ng

Language

Vietnamese

Timezone

7 hrs ahead of GMT

How to get cheap flights from London to Hanoi

Tips and advice from our flight experts

Find a good deal on your flight from London to Hanoi with Netflights. 4,794 flights go via this route every week, and we've collected them all to help you find the best flight deal. If you want to keep your options open, take a look at flights from another airport in London.

The most popular airlines for this route are Qatar Airways, Vietnam Airlines & Emirates, while London Heathrow (LHR) is the most popular departure airport in the city. But when you fly is just as important as where you fly from. Search by month to find out when flights are at the priciest and their cheapest.

The 9244 km journey from London to Hanoi takes at least 11 hrs 45 mins. Another way to get a cheap flight is to book last minute – but this does mean you may not be able to get the exact flights you want.

We’ve scanned 31,647 flights today to help you find the cheapest deals – not just to Hanoi, but worldwide. You can also compare the prices of hotels and hire cars for your stay in Vietnam. Simply use the tabs above, or add them to your booking once you’ve chosen your flight.