Cheap flights from London to Vietnam from £300
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 17/8. Fares are subject to change and may not be available on all flights or dates of travel.
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 15 July 2025.
Round-trip from | £536 |
---|---|
One-way from | £300 |
Popular in | July |
Cheapest in | November |
Average price | £859 |
Good round-trip deal | £691 or less |
Good one-way deal | £483 or less |
Find flight deals from London to Vietnam
Cheapest flights from London to VietnamExplore 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 15 July 2025.
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 15 July 2025.
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 15 July 2025.
Use the filters below to find and compare flights from London to Vietnam that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
LondonHanoi
LHR - HAN
LHRHAN
London Heathrow
Tue 25/11
22:00-23:15
1 stop18h 15m
Hanoi Noibai
Tue 24/2
15:45-18:15
1 stop33h 30m
LondonHanoi
LGW - HAN
LGWHAN
London Gatwick
Thu 28/8
12:35-11:55
1 stop17h 20m
Hanoi Noibai
Thu 4/9
13:25-06:35
1 stop23h 10m
LondonHanoi
LGW - HAN
LGWHAN
London Gatwick
Thu 2/10
12:00-16:55
1 stop22h 55m
Hanoi Noibai
Sat 18/10
20:00-06:50
2 stops40h 50m
LondonHanoi
LGW - HAN
LGWHAN
London Gatwick
Fri 14/11
10:30-14:45
2 stops21h 15m
Hanoi Noibai
Mon 24/11
13:50-06:30
1 stop23h 40m
LondonHanoi
LHR - HAN
LHRHAN
London Heathrow
Tue 23/9
21:20-16:30
2 stops37h 10m
Hanoi Noibai
Thu 9/10
17:30-18:40
2 stops55h 10m
LondonHanoi
LHR - HAN
LHRHAN
London Heathrow
Sun 7/9
22:05-14:05
1 stop34h 00m
Hanoi Noibai
Thu 18/9
15:05-20:00
1 stop34h 55m
LondonHanoi
LHR - HAN
LHRHAN
London Heathrow
Mon 15/9
22:40-10:55
2 stops30h 15m
Hanoi Noibai
Fri 3/10
12:20-20:15
2 stops37h 55m
LondonHo Chi Minh City
LHR - SGN
LHRSGN
London Heathrow
Wed 31/12
22:00-22:10
1 stop17h 10m
Ho Chi Minh City
Sat 31/1
11:55-17:55
2 stops37h 00m
LondonHo Chi Minh City
LGW - SGN
LGWSGN
London Gatwick
Wed 27/8
12:35-00:40
1 stop30h 05m
Ho Chi Minh City
Wed 3/9
05:10-06:35
1 stop31h 25m
LondonHanoi
LGW - HAN
LGWHAN
London Gatwick
Mon 10/11
10:30-14:45
2 stops21h 15m
Hanoi Noibai
Mon 1/12
18:15-06:55
1 stop19h 40m
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.
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, May is the cheapest month in which you can book a flight from London to Vietnam (average of £820). Flying from London 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 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 15 July 2025.
It’s typically best to fly out from London to Vietnam in the afternoon. Doing so could potentially save you 9% 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 Monday evenings when fares are most often at their lowest. Friday mornings 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 15 July 2025.
Read reviews from past customers who have flown with Emirates, Singapore Airlines, andKLM 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.
Food
Entertainment
Crew
Comfort
Overall
Boarding
Reviews
Anonymous,Jun 2025
ATH - EWR
Food
Entertainment
Crew
Comfort
Overall
Boarding
Reviews
Anonymous,Jun 2025
ATH - EWR
Food
Entertainment
Crew
Comfort
Overall
Boarding
Reviews
Anonymous,Jun 2025
ATH - EWR
Food
Entertainment
Crew
Comfort
Overall
Boarding
Reviews
Anonymous,Jun 2025
ATH - EWR
Food
Entertainment
Crew
Comfort
Overall
Boarding
Reviews
Anonymous,Jun 2025
ATH - EWR
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.
Browse thousands of different options on Cheapflights for your next trip
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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.
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 15 July 2025.
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.