$442 Cheap Flights from London (LHR) to Hanoi (HAN)

Popular airlines from Heathrow Airport (LHR) to Noi Bai Intl. Airport (HAN)

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Cheap Flights from London to Hanoi (LHR-HAN)

Prices were available within the past 7 days and start at $442 for one-way flights and $530 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Air China
Shenzhen Airlines
China Eastern Airlines
China Southern Airlines
Etihad Airways
Vietnam Airlines
Cathay Pacific
Singapore Airlines
British Airways
Turkish Airlines

Find the cheapest month to fly from London (LHR) to Hanoi (HAN)

November is typically the cheapest month to fly

From $548 - $1,229 per traveler.

Graph displaying average flight prices per month

Alternative airports near Hanoi

Prices were available within the past 7 days. Prices and availability are subject to change.

Flights from London (LHR) to Hanoi (HAN)
Origin airport
Heathrow
Destination airport
Noi Bai Intl.
Airlines serving
Air China, Asiana Airlines, Austrian Airlines, British Airways, Cathay Pacific, China Airlines, China Eastern Airlines, China Southern Airlines, EVA Airways, Emirates, Ethiopian Airlines, Etihad Airways, Korean Air, Lufthansa, Malaysia Airlines, Qatar Airways, Thai Airways International, Turkish Airlines, Vietnam Airlines, Virgin Atlantic
Roundtrip price
$529
Distance
5739 mi
Average flight time
10 hours 45 mins

London to Hanoi Flights

The cheapest times to fly from London to Hanoi

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from London to Hanoi are during the month of December. You can find some of the cheapest flights from London to Hanoi with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from London to Hanoi

Sunday is one of the best days to book for cheap flights from London to Hanoi: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from London to Hanoi

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from London to Hanoi in 2025. You can also book with separate airlines for your outbound and return journeys, from $442 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap London to Hanoi flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your London to Hanoi airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Heathrow Airport (LHR) to Noi Bai Intl. Airport (HAN) cost?
You can find cheap return tickets from Heathrow Airport (LHR) to Noi Bai Intl. Airport (HAN) starting at $923. Grab your seat and get ready to go. This information is based on the cheapest price found on Expedia for this return journey departing within the next three months. This airfare is for a Vietnam Airlines flight leaving LHR on August 6 2025 and touching down at HAN. The price was last updated on July 23 2025 and has not changed since.
What is the cheapest month to fly from LHR to HAN?
The cheapest flights from LHR to HAN are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
Which airlines fly direct from Heathrow Airport (LHR) to Noi Bai Intl. Airport (HAN)?
Fly nonstop from Heathrow Airport (LHR) to Noi Bai Intl. Airport (HAN) on a Vietnam Airlines flight.
What is the cheapest airline that flies from LHR to HAN?
Book a flight from LHR to HAN with Vietnam Airlines. This carrier currently has the cheapest one-way fare on this route, starting at $649. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from LHR on September 14 2025. Prices were last updated on July 23 2025 and have not changed since.
How many flights per day from Heathrow Airport (LHR) to Noi Bai Intl. Airport (HAN)?
On average, Heathrow Airport (LHR) has 4 direct flights to Noi Bai Intl. Airport (HAN) each week. For more options, use Expedia's filters to find flights with one or more stops. Fit in a quick visit to another destination or just break up your journey.
What are the most popular departure times for flights from Heathrow Airport (LHR) to Noi Bai Intl. Airport (HAN)?
The 11 AM departures from LHR to HAN are the top choice for many travelers. They can also be more expensive. If you want to save on your trip, book during off-peak hours.
What day of the week has the most flights from LHR to HAN?
If you jet off on a Wednesday, you'll get the largest range of options for flights from Heathrow Airport (LHR) to Noi Bai Intl. Airport (HAN).
What is the earliest flight from Heathrow Airport (LHR) to Noi Bai Intl. Airport (HAN)?
Take the earliest flight at around 11:00AM UTC+0, leaving from Heathrow Airport (LHR). You'll be traveling for about 11h 20m, landing at Noi Bai Intl. Airport (HAN) at approximately 5:20AM UTC+7.
How long does it take to fly from Heathrow Airport (LHR) to Noi Bai Intl. Airport (HAN)?
Flights from LHR to HAN have an average travel time of 11 hours and 20 minutes. The total distance between the two airports is 5,700 mi.
What is the best time to fly from Heathrow Airport (LHR) to Noi Bai Intl. Airport (HAN)?
Opt for a flight from Heathrow Airport (LHR) to Noi Bai Intl. Airport (HAN) that leaves before 3 PM to reduce the likelihood of delays and cancellations. Departures later than this have a 22% higher chance of being canceled, on average.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports do you fly into for Hanoi from Heathrow Airport (LHR)?
Check out your flight options from Heathrow Airport (LHR) to Noi Bai Intl. Airport (HAN). This is the only Hanoi airport you can arrive at if you're taking a direct flight.
Is it cheaper to buy a plane ticket from Heathrow Airport (LHR) to Noi Bai Intl. Airport (HAN) last-minute?
Booking your plane ticket from LHR to HAN right before your getaway is typically more expensive. However, if there's some wiggle room with your departure dates and times, you could grab a cheap last-minute fare.
Is it cheaper to book a LHR to HAN flight and hotel package?
Opting for a LHR to HAN flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your trip in one place. Pick from our impressive range of stays and then add car rentals, flights and activities to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Heathrow Airport (LHR) to Noi Bai Intl. Airport (HAN)?
In most cases, you can cancel or reschedule your LHR to HAN flight. However, additional charges may apply, especially if your booking was made over 24 hours ago. Double-check your itinerary for the airline's guidelines and fees on flight changes, or if you need further information, head to our Customer Service portal.

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*Available to One Key members.