Cheap flights from London to Hanoi 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 25/9. Fares are subject to change and may not be available on all flights or dates of travel.
Cheapflights Tip: The best prices from London to Hanoi Noibai are usually found in May or November, booked 51 days in advance, depart on a Sunday or Monday and return on a Saturday
Cheap flight deals from London to Hanoi
Discover tips and strategies to find the most affordable flight options for your journey from London (LON) 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 14 July 2025.
Round-trip from | £535 |
---|---|
One-way from | £300 |
Popular in | December |
Cheapest in | May |
Average price | £816 |
Good round-trip deal | £705 or less |
Good one-way deal | £526 or less |
Find flight deals from London to Hanoi
Cheapest flights from London to HanoiExplore the most affordable flight options available from London to Hanoi. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 14 July 2025.
Explore the most affordable flight options available from London to Hanoi. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 14 July 2025.
Cheapflights Fare Finder
Customise your flight search to find flights from London 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 14 July 2025.
Use the filters below to find and compare flights from London to Hanoi that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
LondonHanoi
LHR - HAN
LHRHAN
London Heathrow
Thu 25/9
22:10-23:15
1 stop19h 05m
Hanoi Noibai
Sat 11/10
11:45-19:00
1 stop37h 15m
LondonHanoi
LGW - HAN
LGWHAN
London Gatwick
Wed 29/10
11:40-16:40
1 stop22h 00m
Hanoi Noibai
Sat 29/11
12:25-06:55
1 stop25h 30m
LondonHanoi
LHR - HAN
LHRHAN
London Heathrow
Mon 17/11
21:00-01:45
1 stop21h 45m
Hanoi Noibai
Tue 17/3
15:45-17:30
2 stops32h 45m
LondonHanoi
LGW - HAN
LGWHAN
London Gatwick
Sat 29/11
17:00-01:45
1 stop25h 45m
Hanoi Noibai
Sat 10/1
08:50-22:35
1 stop20h 45m
LondonHanoi
LHR - HAN
LHRHAN
London Heathrow
Wed 8/10
22:05-14:05
1 stop34h 00m
Hanoi Noibai
Tue 28/10
14:55-19:10
1 stop35h 15m
LondonHanoi
LGW - HAN
LGWHAN
London Gatwick
Mon 10/11
17:00-14:45
3 stops62h 45m
Hanoi Noibai
Tue 2/12
15:45-06:30
2 stops45h 45m
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
LondonHanoi
LHR - HAN
LHRHAN
London Heathrow
Fri 14/11
09:00-05:55
1 stop13h 55m
Hanoi Noibai
Mon 1/12
07:40-18:25
1 stop17h 45m
LondonHanoi
LHR - HAN
LHRHAN
London Heathrow
Mon 29/12
21:10-13:55
1 stop33h 45m
Hanoi Noibai
Mon 26/1
02:45-17:30
1 stop21h 45m
LondonHanoi
LGW - HAN
LGWHAN
London Gatwick
Tue 19/8
10:10-13:10
1 stop21h 00m
Hanoi Noibai
Wed 3/9
14:10-06:25
1 stop22h 15m
Best time to book a flight from London to Hanoi
Have a flexible travel schedule? Discover the best time to fly to Hanoi from London with our price prediction graph.
Cheapflights Insights
Everything you need to know about your flight from London to Hanoi
How far ahead should I book a flight from London to Hanoi?
Use this chart to determine the optimal time to book a return flight from London to Hanoi. Price data was last updated on 11 July 2025.
To ensure you get the cheapest price possible for a flight from London to Hanoi, you should look to book at least 51 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
What is the cheapest month to book a flight from London to Hanoi?
Currently, May is the cheapest month in which you can book a flight from London to Hanoi (average of £793). Flying from London 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 LON to HAN?
Find hourly flight availability from London 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 14 July 2025.
When flying from London to Hanoi, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 11% versus a flight in the morning.
What is the cheapest day to fly from London to Hanoi?
Use this chart to determine the cheapest time to fly return from London to Hanoi. Price data was last updated on 8 September 2024.
Travellers seeking maximum savings on their London to Hanoi flight should consider departing on Monday evenings when fares are most often at their lowest. Saturday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.
How much does it cost for a return flight from London to Hanoi?
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 14 July 2025.
Check out reviews from past customers who have flown with Emirates, KLM, andChina Southern from London to Hanoi to help guide your decision. You can also see how each airline stacks up 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
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 Hanoi. 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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Fly from London to Hanoi on these airlines
Choose from the following airlines for your flight from London to Hanoi. Flights are based on user searches made on Cheapflights and were last updated on 14 July 2025.
Top 10 airlines flying from London to Hanoi
Discover the top 10 airlines that operate flights from London 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 14 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 Hanoi?
Deals for London to Hanoi flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.
Why should you use Cheapflights to find cheap flight tickets from London to Hanoi?
Cheapflights simply makes it quick and affordable to book flights from London to Hanoi 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 London to Hanoi with no change fees?
Certainly. Search results for flights to Hanoi 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 Hanoi become cheaper?
Yes! Start tracking prices for London to Hanoi flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.