Cheap flights from London Heathrow Airport to Hanoi from £254

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 5/6. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — HAN
7 Mar — 14 Mar1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from London Heathrow to Hanoi Noibai are usually found in November or September, booked 38 days in advance, depart on a Monday or Sunday and return on a Wednesday

Cheap flight deals from Heathrow to Hanoi

Enter your travel dates to find the best prices.

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 5 February 2026.

Wed 11/319:45
LHR
-
HAN
1 stop19h 25m
Hainan Airlines
Thu 2/421:10
HAN
-
LHR
2 stops28h 20m
Hainan Airlines
Deal found 3/2£379
Wed 11/319:45
LHR
-
HAN
1 stop19h 25m
Hainan Airlines
Sun 29/321:10
HAN
-
LHR
2 stops28h 20m
Hainan Airlines
Deal found 2/2£383
Mon 9/321:00
LHR
-
HAN
1 stop37h 45m
China Eastern
Sat 21/302:45
HAN
-
LHR
1 stop21h 45m
China Eastern
Deal found 2/2£385
Wed 11/321:00
LHR
-
HAN
1 stop37h 45m
China Eastern
Wed 25/315:10
HAN
-
LHR
1 stop33h 20m
China Eastern
Deal found 5/2£386
Tue 17/321:00
LHR
-
HAN
1 stop21h 45m
China Eastern
Sun 29/318:45
HAN
-
LHR
1 stop29h 55m
China Eastern
Deal found 3/2£388
Tue 17/321:00
LHR
-
HAN
2 stops34h 45m
China Eastern
Sat 28/315:45
HAN
-
LHR
2 stops32h 55m
China Eastern
Deal found 3/2£389
Wed 11/321:00
LHR
-
HAN
1 stop21h 45m
China Eastern
Sat 28/318:45
HAN
-
LHR
1 stop29h 55m
China Eastern
Deal found 3/2£390
Mon 9/321:00
LHR
-
HAN
1 stop37h 45m
China Eastern
Sat 28/315:45
HAN
-
LHR
2 stops32h 55m
China Eastern
Deal found 3/2£392

Find 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 5 February 2026.

Round-trip from

£379

One-way from

£254

Popular in

July

Cheapest in

November

Average price

£680

Good round-trip deal

£673 or less

Good one-way deal

£463 or less
Hainan Airlines
  • Hainan Airlines
  • 11/3-2/4
  • 3 total stops
  • 47h 45m total
  • London to Hanoi
Hainan Airlines
  • Hainan Airlines
  • 5/6
  • 2 total stops
  • 40h 05m total
  • London to Hanoi
Highest demand for flights based on searches. 8% potential increase in price (£46 potential increase over avg. return price).
Cheapest flight prices on average. 1% potential price decrease (£10 potential savings vs. average return price).
Average for round-trip flights in February 2026
Price to beat on a round-trip flight from London Heathrow to Hanoi Noibai.
Price to beat on a one-way flight from London Heathrow to Hanoi Noibai.

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 5 February 2026.
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

Sun 8/3

21:00-14:10

1 stop34h 10m

Hanoi Noibai

Mon 16/3

18:45-17:30

1 stop29h 45m

£411

LondonHanoi

LHR - HAN

LHRHAN

London Heathrow

Sat 2/5

21:20-01:20

1 stop22h 00m

Hanoi Noibai

Mon 11/5

02:20-18:40

1 stop22h 20m

£422

LondonHanoi

LHR - HAN

LHRHAN

London Heathrow

Sun 15/3

21:00-15:15

2 stops59h 15m

Hanoi Noibai

Wed 18/3

02:45-17:30

1 stop21h 45m

£423

LondonHanoi

LHR - HAN

LHRHAN

London Heathrow

Sun 17/5

21:20-17:45

1 stop38h 25m

Hanoi Noibai

Wed 27/5

02:20-18:40

1 stop22h 20m

£424

LondonHanoi

LHR - HAN

LHRHAN

London Heathrow

Wed 20/5

21:20-01:20

1 stop22h 00m

Hanoi Noibai

Mon 1/6

18:45-18:40

1 stop29h 55m

£424

LondonHanoi

LHR - HAN

LHRHAN

London Heathrow

Sun 17/5

21:20-17:45

1 stop38h 25m

Hanoi Noibai

Thu 4/6

15:00-18:40

1 stop33h 40m

£424

LondonHanoi

LHR - HAN

LHRHAN

London Heathrow

Tue 26/5

21:20-17:45

1 stop38h 25m

Hanoi Noibai

Mon 1/6

15:00-18:40

1 stop33h 40m

£424

LondonHanoi

LHR - HAN

LHRHAN

London Heathrow

Sun 24/5

21:20-14:00

1 stop34h 40m

Hanoi Noibai

Mon 1/6

02:20-18:40

1 stop22h 20m

£424

LondonHanoi

LHR - HAN

LHRHAN

London Heathrow

Tue 5/5

21:20-01:20

1 stop22h 00m

Hanoi Noibai

Sun 17/5

17:30-18:40

2 stops31h 10m

£429

LondonHanoi

LHR - HAN

LHRHAN

London Heathrow

Wed 13/5

21:20-17:45

1 stop38h 25m

Hanoi Noibai

Sun 17/5

15:00-18:40

1 stop33h 40m

£452

Flights are sorted by cheapest return flights first.

Deals found on 4/2

Showing 1-10 of 17 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 30 January 2026.

The best time to book flights from London Heathrow Airport to Hanoi is 38 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, September is the cheapest month in which you can book a flight from London Heathrow Airport to Hanoi (average of £378). Flying from London Heathrow Airport to Hanoi in August is currently the most expensive (average of £593). 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 5 February 2026.

When flying from London Heathrow Airport to Hanoi, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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 5 February 2026.
Read through reviews of airlines operating flights from London Heathrow Airport to Hanoi, such as Cathay Pacific, Vietnam Airlines, andQatar Airways. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Crew

8.1

Boarding

7.9

Comfort

7.6

Entertainment

7.8

Overall

7.6

Food

7.3

Reviews

1 / 20
4.0
Okay

Anonymous,Jan 2026

HKG - CTS

I went to sleep without dinner, woke up about 4 hours before landing. I asked for breakfast, waited for an hour, nothing, I asked again, still nothing after 15 minutes. I then asked for coffee, when the coffee came after half an hour, it was cold. Crew manager apologised.

Crew

8.1

Boarding

7.9

Comfort

7.6

Entertainment

7.8

Overall

7.6

Food

7.3

Reviews

1 / 20
4.0
Okay

Anonymous,Jan 2026

HKG - CTS

I went to sleep without dinner, woke up about 4 hours before landing. I asked for breakfast, waited for an hour, nothing, I asked again, still nothing after 15 minutes. I then asked for coffee, when the coffee came after half an hour, it was cold. Crew manager apologised.

Crew

8.1

Boarding

7.9

Comfort

7.6

Entertainment

7.8

Overall

7.6

Food

7.3

Reviews

1 / 20
4.0
Okay

Anonymous,Jan 2026

HKG - CTS

I went to sleep without dinner, woke up about 4 hours before landing. I asked for breakfast, waited for an hour, nothing, I asked again, still nothing after 15 minutes. I then asked for coffee, when the coffee came after half an hour, it was cold. Crew manager apologised.

Crew

8.1

Boarding

7.9

Comfort

7.6

Entertainment

7.8

Overall

7.6

Food

7.3

Reviews

1 / 20
4.0
Okay

Anonymous,Jan 2026

HKG - CTS

I went to sleep without dinner, woke up about 4 hours before landing. I asked for breakfast, waited for an hour, nothing, I asked again, still nothing after 15 minutes. I then asked for coffee, when the coffee came after half an hour, it was cold. Crew manager apologised.

Crew

8.1

Boarding

7.9

Comfort

7.6

Entertainment

7.8

Overall

7.6

Food

7.3

Reviews

1 / 20
4.0
Okay

Anonymous,Jan 2026

HKG - CTS

I went to sleep without dinner, woke up about 4 hours before landing. I asked for breakfast, waited for an hour, nothing, I asked again, still nothing after 15 minutes. I then asked for coffee, when the coffee came after half an hour, it was cold. Crew manager apologised.

Crew

8.1

Boarding

7.9

Comfort

7.6

Entertainment

7.8

Overall

7.6

Food

7.3

Reviews

1 / 20
4.0
Okay

Anonymous,Jan 2026

HKG - CTS

I went to sleep without dinner, woke up about 4 hours before landing. I asked for breakfast, waited for an hour, nothing, I asked again, still nothing after 15 minutes. I then asked for coffee, when the coffee came after half an hour, it was cold. Crew manager apologised.

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 is 1 flight from London Heathrow to Noibai per day from 15 different airlines.

  • How long is the flight from London Heathrow Airport to Hanoi?

    Departing from London Heathrow Airport to Hanoi will take you 58h 45m. The distance between London Heathrow Airport and Hanoi is about 5736 mi.

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

    Flying on Air China is currently your cheapest option to Hanoi, with prices starting at £362. Additional return tickets that might be worth considering are offered by Shenzhen Airlines and China Eastern, with the lowest prices starting at £371 and £378, respectively. Air China is 49% 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 £232 on Shenzhen Airlines. Other airlines that offer cheap prices include Air China from £252 and China Eastern from £265 one-way.

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

    Looking at all options, your cheapest flight can be booked for £394. While the most popular route (London Heathrow - Hanoi Noibai) can be booked for £327 on average, our data indicates £1,132 when flying from London Heathrow Airport to Hanoi.

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

  • What are some popular points of interest to see during a stopover in Guangzhou?

    Baima Clothing Wholesale Market, Huaisheng Mosque, and Yide Lu are the most popular attractions in Guangzhou if you're in need of something to do during your stopover. Baima Clothing Wholesale Market, Huaisheng Mosque, and Yide Lu are located about 17.3 mi, 18.9 mi, and 19.5 mi, respectively from Guangzhou Baiyun.

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

  • 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, September is the cheapest month in which you can book a flight from London Heathrow Airport to Hanoi (average of £378). Flying from London Heathrow Airport to Hanoi in August is currently the most expensive (average of £593). 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

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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 5 February 2026.

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 5 February 2026.
AirlineCheapestAverageFlexibilityOn-time
Air ChinaCheapest£362Average£428FlexibilityNo cancel feeOn-time67%
Search Air China flights
Shenzhen AirlinesCheapest£371Average£489FlexibilityNo cancel feeOn-time63%
Search Shenzhen Airlines flights
China EasternCheapest£378Average£466FlexibilityNo cancel feeOn-time62%
Search China Eastern flights
China SouthernCheapest£390Average£559FlexibilityNo cancel feeOn-time69%
Search China Southern flights
Etihad AirwaysCheapest£501Average£601FlexibilityNo cancel feeOn-time75%
Search Etihad Airways flights
Singapore AirlinesCheapest£556Average£712FlexibilityNo cancel feeOn-time81%
Search Singapore Airlines flights
Cathay PacificCheapest£558Average£684FlexibilityNo cancel feeOn-time72%
Search Cathay Pacific flights
Vietnam AirlinesCheapest£560Average£750FlexibilityNo cancel feeOn-time81%
Search Vietnam Airlines flights
Malaysia AirlinesCheapest£591Average£662FlexibilityNo cancel feeOn-time67%
Search Malaysia Airlines flights
Qatar AirwaysCheapest£593Average£741FlexibilityNo cancel feeOn-time68%
Search Qatar Airways flights

Fly with Cheapflights

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