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Cheap flights from Southampton to Hanoi from £687

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/5. Fares are subject to change and may not be available on all flights or dates of travel.
SOU — HAN
21 Apr — 28 Apr1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Southampton to Hanoi

Enter your travel dates to find the best prices.

Cheapest flights from Southampton to Hanoi
Explore the most affordable flight options available from Southampton to Hanoi. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 22 March 2026.

Tue 5/509:20
SOU
-
HAN
2 stops39h 20m
Multiple Airlines
Tue 12/520:40
HAN
-
SOU
2 stops42h 00m
Multiple Airlines
Deal found 20/3£687
Sun 3/520:00
SOU
-
HAN
2 stops40h 45m
Multiple Airlines
Sun 10/520:40
HAN
-
SOU
2 stops42h 00m
Multiple Airlines
Deal found 19/3£717
Wed 6/509:20
SOU
-
HAN
2 stops27h 25m
Multiple Airlines
Tue 12/502:20
HAN
-
SOU
3 stops36h 20m
Multiple Airlines
Deal found 22/3£809
Tue 8/920:00
SOU
-
HAN
2 stops35h 55m
Qatar Airways
Wed 30/919:30
HAN
-
SOU
2 stops30h 00m
Qatar Airways
Deal found 19/3£1,000
Tue 8/920:00
SOU
-
HAN
2 stops35h 55m
Qatar Airways
Thu 1/1008:45
HAN
-
SOU
2 stops40h 45m
Qatar Airways
Deal found 19/3£1,002
Tue 8/920:00
SOU
-
HAN
2 stops35h 55m
Qatar Airways
Mon 28/919:30
HAN
-
SOU
2 stops54h 00m
Qatar Airways
Deal found 19/3£1,011

Find flight deals from Southampton to Hanoi

Discover tips and strategies to find the most affordable flight options for your journey from Southampton (SOU) 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 22 March 2026.

Round-trip from

£687

Popular in

August

Cheapest in

November

Average price

£647
5/5-12/5
  • 5/5-12/5
  • 4 total stops
  • 81h 20m total
  • Southampton to Hanoi
Search Deals
Highest demand for flights based on searches. 12% potential increase in price (£67 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£13 potential savings vs. average return price).
Search Deals
Average for round-trip flights in March 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Southampton 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 22 March 2026.
Use the filters below to find and compare flights from Southampton to Hanoi that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

SouthamptonHanoi

SOU - HAN

SOUHAN

Southampton Eastleigh

Tue 8/9

20:00-13:55

2 stops35h 55m

Hanoi Noibai

Thu 1/10

08:45-19:30

2 stops40h 45m

£1,002

SouthamptonHanoi

SOU - HAN

SOUHAN

Southampton Eastleigh

Wed 9/9

09:10-13:55

2 stops22h 45m

Hanoi Noibai

Thu 1/10

08:45-19:30

2 stops40h 45m

£1,043

SouthamptonHanoi

SOU - HAN

SOUHAN

Southampton Eastleigh

Mon 7/9

20:00-07:15

2 stops53h 15m

Hanoi Noibai

Thu 1/10

08:45-19:30

2 stops40h 45m

£1,055

SouthamptonHanoi

SOU - HAN

SOUHAN

Southampton Eastleigh

Sun 6/9

20:00-13:55

2 stops35h 55m

Hanoi Noibai

Tue 29/9

08:45-19:30

2 stops40h 45m

£1,069

SouthamptonHanoi

SOU - HAN

SOUHAN

Southampton Eastleigh

Sun 6/9

20:00-13:55

2 stops35h 55m

Hanoi Noibai

Thu 1/10

08:45-19:30

2 stops40h 45m

£1,069
Fastest return journey

SouthamptonHanoi

SOU - HAN

SOUHAN

Southampton Eastleigh

Mon 4/5

09:20-14:00

2 stops22h 40m

Hanoi Noibai

Wed 3/6

19:30-19:30

2 stops30h 00m

£1,075

SouthamptonHanoi

SOU - HAN

SOUHAN

Southampton Eastleigh

Sat 16/5

20:00-08:05

2 stops30h 05m

Hanoi Noibai

Mon 1/6

19:30-19:30

2 stops30h 00m

£1,217

SouthamptonHanoi

SOU - HAN

SOUHAN

Southampton Eastleigh

Mon 18/5

20:00-08:05

2 stops30h 05m

Hanoi Noibai

Sun 31/5

19:30-19:30

2 stops30h 00m

£1,218

SouthamptonHanoi

SOU - HAN

SOUHAN

Southampton Eastleigh

Mon 18/5

20:00-08:05

2 stops30h 05m

Hanoi Noibai

Fri 5/6

19:30-19:30

2 stops30h 00m

£1,218

SouthamptonHanoi

SOU - HAN

SOUHAN

Southampton Eastleigh

Tue 19/5

20:00-08:05

2 stops30h 05m

Hanoi Noibai

Sat 6/6

19:30-19:30

2 stops30h 00m

£1,218

Flights are sorted by cheapest return flights first.

Deals found on 19/3

Showing 1-10 of 11 resultsSorted by cheapest first
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Best time to book a flight from Southampton to Hanoi

Have a flexible travel schedule? Discover the best time to fly to Hanoi from Southampton 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 Southampton to Hanoi

What is the cheapest month to book a flight from Southampton to Hanoi?

Currently, January is the cheapest month in which you can book a flight from Southampton to Hanoi (average of £256). Flying from Southampton to Hanoi in August is currently the most expensive (average of £599). 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.

Related info for your journey

Find useful and relevant information for your journey from Southampton to Hanoi. 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 Southampton to Hanoi?

    For as low as £1,002, Qatar Airways can have you in Hanoi from Southampton in 35h 55m. Airlines will cover a distance of 5787 mi.

  • Can I find deals for flights from Southampton to Hanoi that include hotel bookings?

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

  • How can I find direct flights from Southampton to Hanoi?

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

  • Can I find deals for business class flights from Southampton to Hanoi?

    Yes. Cheapflights offers flight deals from Southampton 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 Southampton to Hanoi?

    Currently, January is the cheapest month in which you can book a flight from Southampton to Hanoi (average of £256). Flying from Southampton to Hanoi in August is currently the most expensive (average of £599). 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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How does Cheapflights help users find flights from Southampton to Hanoi?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Southampton to Hanoi. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from Southampton to Hanoi?

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Southampton to Hanoi for you. Better yet — we are completely free to use.

Can Cheapflights find flights from Southampton to Hanoi with no change fees?

Yes, we can. To see specific flights from Southampton to Hanoi with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from Southampton to Hanoi become cheaper?

Not ready to book yet? You can track prices for flights from Southampton to Hanoi on Cheapflights with our Price Alert feature and get notified when better prices are available.

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