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Cheap flights from London Heathrow Airport to Hanoi from £314

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 15/5. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — HAN
4 May — 11 May1
1 adult

Cheapflights Tip: The best prices from London Heathrow to Hanoi Noibai are usually found in November or May, booked 55 days in advance, depart on a Saturday or Wednesday and return on a Wednesday

Cheap flight deals from Heathrow to Hanoi

Discover tips and strategies to find the most affordable flight options for your journey from Heathrow (LHR) to Hanoi (HAN). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 29 April 2025.

Round-trip from

£429

One-way from

£314

Popular in

August

Cheapest in

November

Average price

£809

Good round-trip deal

£667 or less

Good one-way deal

£493 or less
China Southern
  • China Southern
  • 26/5-3/6
  • 3 total stops
  • 62h 10m total
  • London to Hanoi
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15/5
  • 15/5
  • 3 total stops
  • 38h 50m total
  • London to Hanoi
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Highest demand for flights based on searches. 11% potential increase in price (£70 potential increase over avg. return price).
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Cheapest flight prices on average. 2% potential price decrease (£14 potential savings vs. average return price).
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Average for round-trip flights in April 2025
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Price to beat on a round-trip flight from London Heathrow to Hanoi Noibai.
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Price to beat on a one-way flight from London Heathrow to Hanoi Noibai.
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Find flight deals from Heathrow to Hanoi

Cheapest flights from Heathrow to Hanoi
Explore the most affordable flight options available from Heathrow to Hanoi. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 29 April 2025.

Mon 26/522:10LHR - HAN
1 stop30h 35mChina Southern
Tue 3/614:40HAN - LHR
2 stops31h 35mChina Southern
Deal found 28/4£429
Tue 27/520:25LHR - HAN
1 stop33h 30mAir China
Mon 9/613:25HAN - LHR
1 stop37h 05mAir China
Deal found 28/4£430
Mon 22/922:05LHR - HAN
1 stop28h 35mShenzhen Airlines
Fri 10/1002:10HAN - LHR
1 stop23h 40mShenzhen Airlines
Deal found 28/4£438
Thu 1/521:20LHR - HAN
1 stop22h 00mChina Eastern
Mon 12/502:20HAN - LHR
1 stop22h 20mChina Eastern
Deal found 28/4£492
Mon 26/520:25LHR - HAN
1 stop33h 30mMultiple Airlines
Mon 2/602:10HAN - LHR
2 stops21h 35mMultiple Airlines
Deal found 28/4£535

Cheapflights Fare Finder

Customise your flight search to find flights from Heathrow to Hanoi that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 29 April 2025.
Use the filters below to find and compare flights from London Heathrow Airport to Hanoi that are best for you.

Fly from

Heathrow

Fly to

Hanoi

Route

Depart

Return

Price

LondonHanoi

LHR - HAN

LHRHAN

London Heathrow

Mon 26/5

22:10-10:45

1 stop30h 35m

Hanoi Noibai

Tue 3/6

14:40-16:15

2 stops31h 35m

£429

LondonHanoi

LHR - HAN

LHRHAN

London Heathrow

Tue 27/5

20:25-11:55

1 stop33h 30m

Hanoi Noibai

Mon 9/6

13:25-20:30

1 stop37h 05m

£430

LondonHanoi

LHR - HAN

LHRHAN

London Heathrow

Mon 22/9

22:05-01:10

1 stop21h 05m

Hanoi Noibai

Thu 9/10

02:10-20:00

1 stop23h 50m

£438

LondonHanoi

LHR - HAN

LHRHAN

London Heathrow

Mon 22/9

21:20-01:20

1 stop22h 00m

Hanoi Noibai

Wed 8/10

15:00-18:40

1 stop33h 40m

£529

LondonHanoi

LHR - HAN

LHRHAN

London Heathrow

Mon 26/5

20:25-11:55

1 stop33h 30m

Hanoi Noibai

Mon 2/6

02:10-17:45

2 stops21h 35m

£535

LondonHanoi

LHR - HAN

LHRHAN

London Heathrow

Thu 15/5

15:05-11:55

3 stops38h 50m

£314

LondonHanoi

LHR - HAN

LHRHAN

London Heathrow

Wed 3/9

22:05-01:10

1 stop21h 05m

£318

LondonHanoi

LHR - HAN

LHRHAN

London Heathrow

Wed 14/5

20:25-01:10

2 stops22h 45m

£374

LondonHanoi

LHR - HAN

LHRHAN

London Heathrow

Thu 4/9

21:20-01:20

1 stop22h 00m

£377

LondonHanoi

LHR - HAN

LHRHAN

London Heathrow

Tue 20/5

22:10-16:45

1 stop36h 35m

£391

Flights are sorted by cheapest return flights first.

Deals found on 28/4

Showing 1-10 of 20 results
1
2

Best time to book a flight from Heathrow to Hanoi

Have a flexible travel schedule? Discover the best time to fly to Hanoi from Heathrow with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from London Heathrow Airport to Hanoi

How far ahead should I book a flight from London Heathrow Airport to Hanoi?

Use this chart to determine the optimal time to book a return flight from Heathrow to Hanoi. Price data was last updated on 25 April 2025.

The best time to book flights from London Heathrow Airport to Hanoi is 55 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from London Heathrow Airport to Hanoi?

Currently, May is the cheapest month in which you can book a flight from London Heathrow Airport to Hanoi (average of £793). Flying from London Heathrow Airport to Hanoi in December is currently the most expensive (average of £1,137). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from LHR to HAN?

Find hourly flight availability from Heathrow to Hanoi. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 29 April 2025.

A simple way to save on the total cost of your ticket is to fly from London Heathrow Airport to Hanoi in the evening. If you’re flexible enough to do this you can expect to save up to 14% on your trip compared to booking a flight in the morning.

What is the cheapest day to fly from London Heathrow Airport to Hanoi?

Use this chart to determine the cheapest time to fly return from Heathrow to Hanoi. Price data was last updated on 30 March 2025.

Travellers seeking maximum savings on their London Heathrow Airport to Hanoi flight should consider departing on Sunday evenings when fares are most often at their lowest. Sunday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

Rainfall in Hanoi by month

Plan your trip to Hanoi by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Hanoi ranges from 14.0 - 296.0 inches per month. August is typically the wettest month, when rainfall can reach 296.0 mm. December is typically the driest time to visit Hanoi when rainfall is around 14.0 mm.

Temperature in Hanoi by month

Plan your trip to Hanoi by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Hanoi, use this chart to help with planning. For those seeking warmer temperatures, June is the ideal time of year to visit, when temperatures reach an average of 29.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 17.0 C).

Reviews of airlines servicing Hanoi

Get insights into the airlines that provide service to Hanoi. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Hanoi. Reviews last updated 29 April 2025.
Peruse reviews from past customers who have flown with Singapore Airlines, Thai Airways and Cathay Pacific from London to Hanoi to help guide your decision. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Singapore Airlines
8.1
Very Good
1,292 reviews
Check prices

Crew

8.6

Overall

8.1

Entertainment

8.0

Comfort

7.9

Boarding

8.2

Food

7.7

Reviews

1 / 20
6.0
Good

Pierre,Apr 2025

MLE - SIN

3 boarding pass checkpoints at the gate. Long line before boarding. Poor leg room in economy.. Flight crew rounds practically non existent during flight.
Singapore Airlines
8.1
Very Good
1,292 reviews
Singapore Airlines
8.1
Very Good
1,292 reviews
Check prices

Crew

8.6

Overall

8.1

Entertainment

8.0

Comfort

7.9

Boarding

8.2

Food

7.7

Reviews

1 / 20
6.0
Good

Pierre,Apr 2025

MLE - SIN

3 boarding pass checkpoints at the gate. Long line before boarding. Poor leg room in economy.. Flight crew rounds practically non existent during flight.
Thai Airways
7.7
Good
325 reviews
Singapore Airlines
8.1
Very Good
1,292 reviews
Check prices

Crew

8.6

Overall

8.1

Entertainment

8.0

Comfort

7.9

Boarding

8.2

Food

7.7

Reviews

1 / 20
6.0
Good

Pierre,Apr 2025

MLE - SIN

3 boarding pass checkpoints at the gate. Long line before boarding. Poor leg room in economy.. Flight crew rounds practically non existent during flight.
Cathay Pacific
7.5
Good
852 reviews
Singapore Airlines
8.1
Very Good
1,292 reviews
Check prices

Crew

8.6

Overall

8.1

Entertainment

8.0

Comfort

7.9

Boarding

8.2

Food

7.7

Reviews

1 / 20
6.0
Good

Pierre,Apr 2025

MLE - SIN

3 boarding pass checkpoints at the gate. Long line before boarding. Poor leg room in economy.. Flight crew rounds practically non existent during flight.
China Southern
7.5
Good
96 reviews
Singapore Airlines
8.1
Very Good
1,292 reviews
Check prices

Crew

8.6

Overall

8.1

Entertainment

8.0

Comfort

7.9

Boarding

8.2

Food

7.7

Reviews

1 / 20
6.0
Good

Pierre,Apr 2025

MLE - SIN

3 boarding pass checkpoints at the gate. Long line before boarding. Poor leg room in economy.. Flight crew rounds practically non existent during flight.

Related info for your journey

Find useful and relevant information for your journey from Heathrow to Hanoi. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Hanoi from London Heathrow?

    If you book a flight to Hanoi from London Heathrow, you will be flying to Noibai, which is the city’s only airport. Hanoi Noibai (HAN) is located 14.2 mi from the center of Hanoi. There are 0 flights from London Heathrow to Noibai per day from 17 different airlines.

  • What are the cheapest airlines flying from London Heathrow Airport to Hanoi round-trip?

    Flying on China Southern is currently your cheapest option to Hanoi, with prices starting at £429. Additional return tickets that might be worth considering are offered by Air China and Shenzhen Airlines, with the lowest prices starting at £430 and £438, respectively. China Southern is 42% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the cheapest airlines to fly from London Heathrow Airport to Hanoi one-way?

    One-way options have recently been found by users for as low as £318 on Shenzhen Airlines. Other airlines that offer cheap prices include Air China from £374 and China Eastern from £377 one-way.

  • What are the cheapest flights from London Heathrow Airport to Hanoi?

    Looking at all options, your cheapest flight can be booked for £456. While the most popular route (London Heathrow - Hanoi Noibai) can be booked for £438 on average our data indicates £985 when flying from London Heathrow Airport to Hanoi.

  • Where are the most common stopover locations when flying from London Heathrow Airport to Hanoi?

    London Heathrow Airport to Hanoi flights have a stopover in Guangzhou most of the time. Guangzhou is followed by Doha in terms of the most popular stopover location on flights from London Heathrow Airport to Hanoi.

  • What are some popular things to do or see while on a stopover in Guangzhou?

    Guangzhou travellers tend to visit Baima Clothing Wholesale Market, Yide Lu, and Guangzhou Zoo more than anywhere else. Baima Clothing Wholesale Market, Yide Lu, and Guangzhou Zoo can be accessed by travelling approximately 17.3 mi, 19.5 mi, and 17.2 mi, respectively from Guangzhou Baiyun.

  • Where are the least popular stopover locations for London Heathrow Airport to Hanoi flights?

    Flights departing from London Heathrow Airport and landing in Hanoi stopover in Shenzhen least frequently.

  • Can I find deals for flights from Heathrow to Hanoi that include hotel bookings?

    Yes. In addition to deals on Heathrow to Hanoi flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Heathrow to Hanoi?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Heathrow to Hanoi.

  • Can I find deals for business class flights from Heathrow to Hanoi?

    Yes. Cheapflights offers flight deals from Heathrow to Hanoi by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from London Heathrow Airport to Hanoi?

    Currently, May is the cheapest month in which you can book a flight from London Heathrow Airport to Hanoi (average of £793). Flying from London Heathrow Airport to Hanoi in December is currently the most expensive (average of £1,137). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Fly from Heathrow to Hanoi on these airlines

Choose from the following airlines for your flight from Heathrow to Hanoi. Flights are based on user searches made on Cheapflights and were last updated on 29 April 2025.
Vietnam Airlines flights from London Heathrow to Hanoi Noibai
China Southern flights from London Heathrow to Hanoi Noibai
Qatar Airways flights from London Heathrow to Hanoi Noibai

Top 10 airlines flying from Heathrow to Hanoi

Discover the top 10 airlines that operate flights from Heathrow to Hanoi. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 29 April 2025.
AirlineCheapestAverageFlexibilityOn-time
Shenzhen AirlinesCheapest£396Average£453FlexibilityNo cancel feeOn-time63%
Search Shenzhen Airlines flights
Air ChinaCheapest£408Average£462FlexibilityNo cancel feeOn-time67%
Search Air China flights
China SouthernCheapest£444Average£560FlexibilityNo cancel feeOn-time69%
Search China Southern flights
China EasternCheapest£477Average£623FlexibilityNo cancel feeOn-time62%
Search China Eastern flights
Singapore AirlinesCheapest£564Average£722FlexibilityNo cancel feeOn-time81%
Search Singapore Airlines flights
Virgin AtlanticCheapest£567Average£695FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
Cathay PacificCheapest£572Average£726FlexibilityNo cancel feeOn-time72%
Search Cathay Pacific flights
Air FranceCheapest£581Average£648FlexibilityNo cancel feeOn-time77%
Search Air France flights
Etihad AirwaysCheapest£584Average£669FlexibilityNo cancel feeOn-time75%
Search Etihad Airways flights
Vietnam AirlinesCheapest£612Average£776FlexibilityNo cancel feeOn-time81%
Search Vietnam Airlines flights

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