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Cheap flights from London to Vietnam from £256

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 14/1. Fares are subject to change and may not be available on all flights or dates of travel.
LON — SGN
14 Dec — 21 Dec1
1 adult
1 adult, Economy, 0 bags

Find flight deals from London to Vietnam

Enter your travel dates to find the best prices.

Cheapest flights from London to Vietnam
Explore the most affordable flight options available from London to Vietnam. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 14 November 2025.

Mon 24/1111:05LGW - HAN
1 stop22h 35mAir China
Fri 5/1218:15HAN - LGW
1 stop19h 40mAir China
Deal found 12/11£389
Mon 24/1111:05LGW - HAN
1 stop17h 10mAir China
Tue 9/1213:20HAN - LGW
1 stop23h 15mAir China
Deal found 12/11£391
Tue 25/1120:25LHR - HAN
1 stop32h 30mAir China
Thu 18/1213:20HAN - LHR
1 stop33h 35mAir China
Deal found 13/11£394
Wed 19/1111:05LGW - HAN
1 stop17h 10mAir China
Tue 9/1213:20HAN - LGW
1 stop23h 15mAir China
Deal found 13/11£394
Tue 25/1120:25LHR - HAN
1 stop32h 30mAir China
Fri 28/1113:30HAN - LHR
1 stop33h 25mAir China
Deal found 12/11£394
Mon 1/1217:40LHR - HAN
1 stop35h 20mAir China
Wed 10/1213:30HAN - LHR
1 stop33h 25mAir China
Deal found 13/11£395
Wed 31/1211:05LGW - HAN
1 stop17h 10mAir China
Fri 23/118:15HAN - LGW
1 stop19h 40mAir China
Deal found 12/11£395
Thu 13/1111:05LGW - HAN
1 stop22h 35mAir China
Fri 5/1218:15HAN - LGW
1 stop19h 40mAir China
Deal found 12/11£396
Mon 1/1220:25LHR - HAN
1 stop32h 35mAir China
Sat 6/1213:20HAN - LHR
1 stop33h 35mAir China
Deal found 13/11£397
Thu 27/1111:05LGW - HAN
2 stops48h 35mAir China
Sun 30/1118:15HAN - LGW
1 stop19h 40mAir China
Deal found 13/11£397
Thu 20/1121:35LHR - HAN
2 stops30h 40mAir China
Thu 27/1113:20HAN - LHR
1 stop35h 30mAir China
Deal found 12/11£400
Mon 1/1220:25LHR - HAN
1 stop32h 35mAir China
Sun 14/1213:20HAN - LHR
1 stop35h 30mAir China
Deal found 12/11£400

Cheap flight deals from London to Vietnam

Keep the following information in mind while searching for London to Vietnam flight deals. Data was last updated 14 November 2025.

Round-trip from

£388

One-way from

£256

Popular in

July

Cheapest in

November

Average price

£556

Good round-trip deal

£721 or less

Good one-way deal

£526 or less
Air China
  • Air China
  • 2/2-9/2
  • 2 total stops
  • 48h 05m total
  • London to Vietnam
Search Deals
18/4
  • 18/4
  • 2 total stops
  • 32h 40m total
  • London to Vietnam
Search Deals
Highest demand for flights based on searches. 12% potential increase in price (£71 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£15 potential savings vs. average return price).
Search Deals
Average for round-trip flights in November 2025
Search Deals
Price to beat on a round-trip flight from London (LON) to Vietnam.
Search Deals
Price to beat on a one-way flight from London (LON) to Vietnam.
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from London to Vietnam 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 14 November 2025.
Use the filters below to find and compare flights from London to Vietnam that are best for you.

Fly from

London

Fly to

Vietnam

Route

Depart

Return

Price

LondonHanoi

LHR - HAN

LHRHAN

London Heathrow

Mon 11/5

20:25-11:55

1 stop33h 30m

Hanoi Noibai

Sun 24/5

13:25-20:30

1 stop37h 05m

£407

LondonHanoi

LHR - HAN

LHRHAN

London Heathrow

Sun 8/2

21:10-08:40

1 stop28h 30m

Hanoi Noibai

Sat 7/3

03:10-19:10

1 stop23h 00m

£435

LondonHanoi

LHR - HAN

LHRHAN

London Heathrow

Sun 8/2

21:10-08:40

1 stop28h 30m

Hanoi Noibai

Sat 7/3

03:35-17:30

2 stops20h 55m

£483

LondonHanoi

LHR - HAN

LHRHAN

London Heathrow

Wed 25/2

17:40-12:00

1 stop35h 20m

Hanoi Noibai

Wed 4/3

12:25-19:40

2 stops38h 15m

£483

LondonHo Chi Minh City

LGW - SGN

LGWSGN

London Gatwick

Sun 8/2

10:30-01:10

1 stop31h 40m

Ho Chi Minh City

Sun 8/3

02:10-14:00

1 stop18h 50m

£499

LondonHanoi

LTN - HAN

LTNHAN

London Luton

Thu 5/3

20:50-11:15

2 stops31h 25m

Hanoi Noibai

Sat 14/3

18:15-14:00

2 stops26h 45m

£511

LondonHanoi

LHR - HAN

LHRHAN

London Heathrow

Wed 28/1

21:10-13:55

1 stop33h 45m

Hanoi Noibai

Thu 12/2

19:40-19:10

1 stop30h 30m

£518

LondonHanoi

LHR - HAN

LHRHAN

London Heathrow

Sat 14/2

21:10-08:40

1 stop28h 30m

Hanoi Noibai

Sun 1/3

19:40-19:10

1 stop30h 30m

£518

LondonHanoi

LHR - HAN

LHRHAN

London Heathrow

Mon 9/2

21:10-08:40

1 stop28h 30m

Hanoi Noibai

Thu 26/2

02:10-19:10

1 stop24h 00m

£520

LondonHanoi

LHR - HAN

LHRHAN

London Heathrow

Fri 23/1

21:10-13:55

1 stop33h 45m

Hanoi Noibai

Thu 12/2

19:40-19:10

1 stop30h 30m

£520

Flights are sorted by cheapest return flights first.

Deals found on 13/11

Showing 1-10 of 60 results
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Best time to book a flight from London to Vietnam

Have a flexible travel schedule? Discover the best time to fly to Vietnam from London 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 to Vietnam

What is the cheapest month to book a flight from London to Vietnam?

Currently, September is the cheapest month in which you can book a flight from London to Vietnam (average of £338). Flying from London to Vietnam in August is currently the most expensive (average of £598). 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 LON to VN?

Find hourly flight availability from London to Vietnam. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 14 November 2025.

It’s typically best to fly out from London to Vietnam in the evening. Doing so could potentially save you 13% on the flight price compared to flying in the morning, which is usually more expensive.

What is the cheapest day to fly from London to Vietnam?

Use this chart to determine the cheapest time to fly return from London to Vietnam. Price data was last updated on 16 December 2024.

Travellers seeking maximum savings on their London to Vietnam flight should consider departing on Wednesday evenings when fares are most often at their lowest. Saturday at midday flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing Vietnam

Get insights into the airlines that provide service to Vietnam. 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 Vietnam. Reviews last updated 14 November 2025.
Read reviews from past customers who have flown with Cathay Pacific, Vietnam Airlines, andChina Southern from London to Vietnam. 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.
Cathay Pacific
7.6
Good
1,058 reviews
Check prices

Comfort

7.6

Overall

7.6

Crew

8.1

Boarding

7.9

Food

7.3

Entertainment

7.8

Reviews

1 / 20
6.0
Good

Anonymous,Sept 2025

PNH - HKG

Everything was good except the typhoon that cause cancelation of my return flight with i had not got any compensation for
Cathay Pacific
7.6
Good
1,058 reviews
Cathay Pacific
7.6
Good
1,058 reviews
Check prices

Comfort

7.6

Overall

7.6

Crew

8.1

Boarding

7.9

Food

7.3

Entertainment

7.8

Reviews

1 / 20
6.0
Good

Anonymous,Sept 2025

PNH - HKG

Everything was good except the typhoon that cause cancelation of my return flight with i had not got any compensation for
Vietnam Airlines
7.6
Good
212 reviews
Cathay Pacific
7.6
Good
1,058 reviews
Check prices

Comfort

7.6

Overall

7.6

Crew

8.1

Boarding

7.9

Food

7.3

Entertainment

7.8

Reviews

1 / 20
6.0
Good

Anonymous,Sept 2025

PNH - HKG

Everything was good except the typhoon that cause cancelation of my return flight with i had not got any compensation for
China Southern
7.5
Good
119 reviews
Cathay Pacific
7.6
Good
1,058 reviews
Check prices

Comfort

7.6

Overall

7.6

Crew

8.1

Boarding

7.9

Food

7.3

Entertainment

7.8

Reviews

1 / 20
6.0
Good

Anonymous,Sept 2025

PNH - HKG

Everything was good except the typhoon that cause cancelation of my return flight with i had not got any compensation for
Qatar Airways
7.4
Good
3,663 reviews
Cathay Pacific
7.6
Good
1,058 reviews
Check prices

Comfort

7.6

Overall

7.6

Crew

8.1

Boarding

7.9

Food

7.3

Entertainment

7.8

Reviews

1 / 20
6.0
Good

Anonymous,Sept 2025

PNH - HKG

Everything was good except the typhoon that cause cancelation of my return flight with i had not got any compensation for
Air China
7.2
Good
123 reviews
Cathay Pacific
7.6
Good
1,058 reviews
Check prices

Comfort

7.6

Overall

7.6

Crew

8.1

Boarding

7.9

Food

7.3

Entertainment

7.8

Reviews

1 / 20
6.0
Good

Anonymous,Sept 2025

PNH - HKG

Everything was good except the typhoon that cause cancelation of my return flight with i had not got any compensation for

Related info for your journey

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

  • How long is the flight from London to Vietnam?

    For as low as £435, Air China can have you in Vietnam from London in 28h 30m. Airlines will cover a distance of 5736 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from London to Vietnam one-way?

    The cheapet airlines for a one-way flight from London to Vietnam are Air China (£256), Shenzhen Airlines (£258), and China Eastern (£314).

  • What are the most popular routes from London to Vietnam?

    While some choose either London Gatwick - Hanoi Noibai or London Heathrow - Ho Chi Minh City, London Heathrow - Hanoi Noibai is the most popular route from London to Vietnam.

  • What are the most reliable airlines from London to Vietnam?

    No one likes to see their flight delayed. When booking a flight from London to Vietnam consider choosing Vietnam Airlines (67%), Scandinavian Airlines (67%) or Cambodia Angkor Air (67%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from London to Vietnam?

    Looking at all options, your cheapest flight can be booked for £435. While the most popular route (London Heathrow - Hanoi Noibai) can be booked for £427 on average, our data indicates £1,581 when flying from London to Vietnam.

  • Can I find deals for flights from London to Vietnam that include hotel bookings?

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

  • How can I find direct flights from London to Vietnam?

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

  • Can I find deals for business class flights from London to Vietnam?

    Yes. Cheapflights offers flight deals from London to Vietnam 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 to Vietnam?

    Currently, September is the cheapest month in which you can book a flight from London to Vietnam (average of £338). Flying from London to Vietnam in August is currently the most expensive (average of £598). 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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Alternative routes for London to Vietnam

See prices for flight routes from nearby airports that may be better suited for you.
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Top 10 airlines flying from London to Vietnam

Discover the top 10 airlines that operate flights from London to Vietnam. 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 14 November 2025.
AirlineCheapestAverageFlexibilityOn-time
Air ChinaCheapest£356Average£475FlexibilityNo cancel feeOn-time67%
Search Air China flights
Shenzhen AirlinesCheapest£386Average£475FlexibilityNo cancel feeOn-time63%
Search Shenzhen Airlines flights
China SouthernCheapest£390Average£571FlexibilityNo cancel feeOn-time69%
Search China Southern flights
Air IndiaCheapest£394Average£622FlexibilityNo cancel feeOn-timeN/A
Search Air India flights
China EasternCheapest£415Average£548FlexibilityNo cancel feeOn-time62%
Search China Eastern flights
Malaysia AirlinesCheapest£519Average£655FlexibilityNo cancel feeOn-time67%
Search Malaysia Airlines flights
Etihad AirwaysCheapest£526Average£626FlexibilityNo cancel feeOn-time75%
Search Etihad Airways flights
Air FranceCheapest£527Average£845FlexibilityNo cancel feeOn-time77%
Search Air France flights
EmiratesCheapest£552Average£870FlexibilityNo cancel feeOn-time75%
Search Emirates flights
Singapore AirlinesCheapest£559Average£774FlexibilityNo cancel feeOn-time81%
Search Singapore Airlines flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from London to Vietnam?

When you search for this flight from London to Vietnam, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from London to Vietnam?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Vietnam from London.

Can Cheapflights find flights from London to Vietnam with no change fees?

Certainly. Search results for flights to Vietnam from London shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from London to Vietnam become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Vietnam from London today and book when prices fit your budget.

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