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Cheap flights from London Heathrow Airport to Vietnam from £296

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 4/5. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — SGN
4 May — 11 May1
1 adult

Cheap flight deals from Heathrow to Vietnam

Keep the following information in mind while searching for Heathrow to Vietnam flight deals. Data was last updated 29 April 2025.

Round-trip from

£429

One-way from

£296

Popular in

December

Cheapest in

November

Average price

£698

Good round-trip deal

£626 or less

Good one-way deal

£466 or less
China Southern
  • China Southern
  • 26/5-3/6
  • 3 total stops
  • 62h 10m total
  • London to Vietnam
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China Southern
  • China Southern
  • 4/5
  • 1 total stop
  • 23h 55m total
  • London to Vietnam
Search Deals
Highest demand for flights based on searches. 1% potential increase in price (£9 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£14 potential savings vs. average return price).
Search Deals
Average for round-trip flights in April 2025
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Price to beat on a round-trip flight from London Heathrow to Vietnam.
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Price to beat on a one-way flight from London Heathrow to Vietnam.
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Find flight deals from Heathrow to Vietnam

Cheapest flights from Heathrow to Vietnam
Explore the most affordable flight options available from Heathrow to Vietnam. 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
Wed 11/619:15LHR - SGN
2 stops36h 15mChina Southern
Wed 18/615:45SGN - LHR
1 stop33h 15mChina Southern
Deal found 29/4£442
Wed 11/620:25LHR - SGN
1 stop22h 15mAir China
Wed 18/605:10SGN - LHR
1 stop21h 20mAir China
Deal found 28/4£443
Fri 13/622:05LHR - SGN
1 stop21h 15mShenzhen Airlines
Thu 19/602:20SGN - LHR
1 stop23h 40mShenzhen Airlines
Deal found 29/4£445
Fri 31/1021:30LHR - CXR
2 stops36h 05mChina Southern
Sat 15/1117:40CXR - LHR
1 stop31h 35mChina Southern
Deal found 28/4£460
Thu 1/521:20LHR - SGN
1 stop22h 15mChina Eastern
Mon 19/502:35SGN - LHR
1 stop22h 05mChina Eastern
Deal found 28/4£474
Thu 1/521:20LHR - HAN
1 stop22h 00mChina Eastern
Mon 12/502:20HAN - LHR
1 stop22h 20mChina Eastern
Deal found 28/4£492
Mon 9/620:25LHR - SGN
1 stop22h 15mMultiple Airlines
Wed 25/602:20SGN - LHR
2 stops24h 10mMultiple Airlines
Deal found 29/4£519
Fri 13/622:05LHR - HUI
2 stops31h 50mMultiple Airlines
Fri 20/607:25HUI - LHR
2 stops42h 25mMultiple Airlines
Deal found 29/4£534
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 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 29 April 2025.
Use the filters below to find and compare flights from London Heathrow Airport to Vietnam that are best for you.

Fly from

Heathrow

Fly to

Vietnam

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

LondonHo Chi Minh City

LHR - SGN

LHRSGN

London Heathrow

Wed 11/6

19:15-13:30

2 stops36h 15m

Ho Chi Minh City

Wed 18/6

15:45-19:00

1 stop33h 15m

£442

LondonHo Chi Minh City

LHR - SGN

LHRSGN

London Heathrow

Wed 11/6

20:25-00:40

1 stop22h 15m

Ho Chi Minh City

Wed 18/6

05:10-20:30

1 stop21h 20m

£443

LondonHo Chi Minh City

LHR - SGN

LHRSGN

London Heathrow

Fri 13/6

22:05-01:20

1 stop21h 15m

Ho Chi Minh City

Thu 19/6

02:20-20:00

1 stop23h 40m

£445

LondonHo Chi Minh City

LHR - SGN

LHRSGN

London Heathrow

Wed 4/6

15:05-13:50

1 stop16h 45m

Ho Chi Minh City

Thu 12/6

09:20-22:00

1 stop18h 40m

£472

LondonNha Trang

LHR - CXR

LHRCXR

London Heathrow

Thu 12/6

21:00-15:10

2 stops36h 10m

Nha Trang Cam Ranh

Thu 19/6

16:00-19:00

1 stop33h 00m

£473

LondonHo Chi Minh City

LHR - SGN

LHRSGN

London Heathrow

Tue 16/9

21:20-01:35

1 stop22h 15m

Ho Chi Minh City

Mon 17/11

02:10-17:30

1 stop22h 20m

£492

LondonHo Chi Minh City

LHR - SGN

LHRSGN

London Heathrow

Mon 9/6

20:25-00:40

1 stop22h 15m

Ho Chi Minh City

Wed 25/6

02:20-20:30

2 stops24h 10m

£519

Flights are sorted by cheapest return flights first.

Deals found on 28/4

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

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

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

Currently, May is the cheapest month in which you can book a flight from London Heathrow Airport to Vietnam (average of £820). Flying from London Heathrow Airport to Vietnam in July is currently the most expensive (average of £1,143). 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 VN?

Find hourly flight availability from Heathrow 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 29 April 2025.

A simple way to save on the total cost of your ticket is to fly from London Heathrow Airport to Vietnam in the afternoon. If you’re flexible enough to do this you can expect to save up to 9% on your trip compared to booking a flight in the morning.

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

Use this chart to determine the cheapest time to fly return from Heathrow to Vietnam. Price data was last updated on 27 October 2024.

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

Rainfall in Vietnam by month

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

In terms of precipitation, rainfall in Vietnam ranges from 0.0 - 340.0 inches per month. September is typically the wettest month, when rainfall can reach 340.0 mm. February is typically the driest time to visit Vietnam when rainfall is around 0.0 mm.

Temperature in Vietnam by month

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

If weather is an important factor for your trip to Vietnam, use this chart to help with planning. For those seeking warmer temperatures, April is the ideal time of year to visit, when temperatures reach an average of 30.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 26.0 C).

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 29 April 2025.
To help decide which airline to fly from London to Vietnam, see what other customers have to say about Korean Air, China Airlines and Garuda Indonesia. 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.
Korean Air
8.4
Very Good
1,064 reviews
Check prices

Comfort

8.3

Food

8.1

Overall

8.4

Boarding

8.5

Crew

8.7

Entertainment

8.2

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Korean Air
8.4
Very Good
1,064 reviews
Korean Air
8.4
Very Good
1,064 reviews
Check prices

Comfort

8.3

Food

8.1

Overall

8.4

Boarding

8.5

Crew

8.7

Entertainment

8.2

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
China Airlines
8.3
Very Good
729 reviews
Korean Air
8.4
Very Good
1,064 reviews
Check prices

Comfort

8.3

Food

8.1

Overall

8.4

Boarding

8.5

Crew

8.7

Entertainment

8.2

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Garuda Indonesia
8.1
Very Good
72 reviews
Korean Air
8.4
Very Good
1,064 reviews
Check prices

Comfort

8.3

Food

8.1

Overall

8.4

Boarding

8.5

Crew

8.7

Entertainment

8.2

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Singapore Airlines
8.1
Very Good
1,292 reviews
Korean Air
8.4
Very Good
1,064 reviews
Check prices

Comfort

8.3

Food

8.1

Overall

8.4

Boarding

8.5

Crew

8.7

Entertainment

8.2

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.

Related info for your journey

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

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

    The cheapet airlines for a one-way flight from London Heathrow Airport to Vietnam are China Southern (£296), Air China (£299), and Shenzhen Airlines (£318).

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

    The most popular flight routes from London Heathrow Airport to Vietnam are London Heathrow - Ho Chi Minh City, London Heathrow - Hanoi Noibai and London Heathrow - Da Nang.

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

    On average you can expect to pay £1,147 for a flight from London Heathrow Airport to Vietnam. The cheapest flight overall is £348 while the most popular route, (London Heathrow - Ho Chi Minh City) is currently priced at £492.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Heathrow 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 Heathrow Airport to Vietnam?

    Currently, May is the cheapest month in which you can book a flight from London Heathrow Airport to Vietnam (average of £820). Flying from London Heathrow Airport to Vietnam in July is currently the most expensive (average of £1,143). 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 Heathrow 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 Heathrow to Vietnam

Discover the top 10 airlines that operate flights from Heathrow 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 29 April 2025.
AirlineCheapestAverageFlexibilityOn-time
China EasternCheapest£318Average£608FlexibilityNo cancel feeOn-time62%
Search China Eastern flights
Shenzhen AirlinesCheapest£392Average£451FlexibilityNo cancel feeOn-time63%
Search Shenzhen Airlines flights
Air FranceCheapest£394Average£620FlexibilityNo cancel feeOn-time77%
Search Air France flights
Air IndiaCheapest£405Average£604FlexibilityNo cancel feeOn-timeN/A
Search Air India flights
Air ChinaCheapest£417Average£470FlexibilityNo cancel feeOn-time67%
Search Air China flights
China SouthernCheapest£439Average£550FlexibilityNo cancel feeOn-time69%
Search China Southern flights
Virgin AtlanticCheapest£528Average£678FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
Singapore AirlinesCheapest£544Average£704FlexibilityNo cancel feeOn-time81%
Search Singapore Airlines flights
Etihad AirwaysCheapest£545Average£654FlexibilityNo cancel feeOn-time75%
Search Etihad Airways flights
Cathay PacificCheapest£569Average£747FlexibilityNo cancel feeOn-time72%
Search Cathay Pacific 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 Heathrow to Vietnam?

Cheapflights helps you search for flights from Heathrow to Vietnam via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

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

Cheapflights simply makes it quick and affordable to book flights from Heathrow to Vietnam by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

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

Users can book flights with no change fees policies with our dedicated filters. Book flights from Heathrow to Vietnam flexibly with Cheapflights today.

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

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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