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Cheap flights from Portsmouth to Vietnam from £649

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 18/8. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — SGN
23 Aug — 30 Aug1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Portsmouth to Vietnam

Enter your travel dates to find the best prices.

Cheapest flights from Portsmouth to Vietnam
Explore the most affordable flight options available from Portsmouth to Vietnam. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 24 July 2026.

Tue 18/814:15
SOU
-
HAN
2 stops44h 35m
Multiple Airlines
Mon 24/818:15
HAN
-
SOU
2 stops25h 30m
Multiple Airlines
Deal found 20/7£649
Mon 7/920:00
SOU
-
HAN
3 stops33h 55m
Multiple Airlines
Mon 14/911:10
HAN
-
SOU
3 stops38h 20m
Multiple Airlines
Deal found 24/7£769
Fri 4/909:25
SOU
-
SGN
3 stops34h 25m
Multiple Airlines
Fri 11/908:50
SGN
-
SOU
3 stops38h 00m
Multiple Airlines
Deal found 21/7£794
Fri 4/920:00
SOU
-
HAN
3 stops36h 00m
Multiple Airlines
Fri 11/911:10
HAN
-
SOU
3 stops35h 40m
Multiple Airlines
Deal found 21/7£834
Sat 5/917:20
SOU
-
SGN
3 stops35h 20m
Multiple Airlines
Sat 12/908:50
SGN
-
SOU
3 stops40h 40m
Multiple Airlines
Deal found 22/7£867
Fri 4/909:20
SOU
-
DAD
3 stops26h 10m
Multiple Airlines
Fri 11/913:15
DAD
-
SOU
3 stops36h 15m
Multiple Airlines
Deal found 21/7£906
Sat 5/910:15
SOU
-
HAN
2 stops21h 40m
Multiple Airlines
Sat 19/919:30
HAN
-
SOU
2 stops20h 15m
Multiple Airlines
Deal found 24/7£979
Tue 18/809:15
SOU
-
DAD
2 stops18h 30m
Multiple Airlines
Mon 24/810:55
DAD
-
SOU
3 stops32h 50m
Multiple Airlines
Deal found 19/7£1,034
Mon 26/1008:55
SOU
-
SGN
2 stops21h 10m
Multiple Airlines
Tue 10/1119:40
SGN
-
SOU
2 stops26h 05m
Multiple Airlines
Deal found 23/7£1,089
Sat 24/1010:15
SOU
-
SGN
2 stops20h 50m
Multiple Airlines
Tue 10/1119:40
SGN
-
SOU
2 stops26h 05m
Multiple Airlines
Deal found 23/7£1,115
Thu 22/1008:55
SOU
-
SGN
2 stops22h 55m
Multiple Airlines
Sat 7/1119:40
SGN
-
SOU
2 stops25h 50m
Multiple Airlines
Deal found 22/7£1,118
Sat 24/1010:15
SOU
-
SGN
2 stops20h 50m
Multiple Airlines
Sat 7/1119:40
SGN
-
SOU
2 stops25h 50m
Multiple Airlines
Deal found 23/7£1,141

Find flight deals from Portsmouth to Vietnam

Keep the following information in mind while searching for Portsmouth to Vietnam flight deals. Data was last updated 24 July 2026.

Round-trip from

£649

Popular in

July

Cheapest in

September

Average price

£837
18/8-24/8
  • 18/8-24/8
  • 4 total stops
  • 70h 05m total
  • Portsmouth to Vietnam
Search Deals
Highest demand for flights based on searches. 11% potential increase in price (£64 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 July 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Portsmouth 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 24 July 2026.
Use the filters below to find and compare flights from Portsmouth to Vietnam that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

SouthamptonHanoi

SOU - HAN

SOUHAN

Southampton Eastleigh

Tue 18/8

14:15-16:50

2 stops44h 35m

Hanoi Noibai

Mon 24/8

18:15-13:45

2 stops25h 30m

£649

SouthamptonHo Chi Minh City

SOU - SGN

SOUSGN

Southampton Eastleigh

Fri 4/9

09:25-01:50

3 stops34h 25m

Ho Chi Minh City

Fri 11/9

08:50-16:50

3 stops38h 00m

£794

SouthamptonHanoi

SOU - HAN

SOUHAN

Southampton Eastleigh

Fri 4/9

20:00-06:40

2 stops28h 40m

Hanoi Noibai

Fri 11/9

20:40-16:50

2 stops26h 10m

£877

SouthamptonDa Nang

SOU - DAD

SOUDAD

Southampton Eastleigh

Fri 4/9

09:20-17:30

3 stops26h 10m

Da Nang

Fri 11/9

13:15-19:30

3 stops36h 15m

£906

SouthamptonHanoi

SOU - HAN

SOUHAN

Southampton Eastleigh

Mon 18/1

19:55-12:20

2 stops33h 25m

Hanoi Noibai

Sun 31/1

19:10-19:25

2 stops31h 15m

£914

SouthamptonHo Chi Minh City

SOU - SGN

SOUSGN

Southampton Eastleigh

Sat 5/9

09:15-19:55

2 stops28h 40m

Ho Chi Minh City

Sat 12/9

08:00-08:45

2 stops30h 45m

£963
Fastest return journey

SouthamptonHanoi

SOU - HAN

SOUHAN

Southampton Eastleigh

Sat 5/9

10:15-13:55

2 stops21h 40m

Hanoi Noibai

Sat 19/9

19:30-09:45

2 stops20h 15m

£979

SouthamptonHanoi

SOU - HAN

SOUHAN

Southampton Eastleigh

Mon 7/9

17:20-06:00

1 stop30h 40m

Hanoi Noibai

Mon 14/9

20:40-16:50

2 stops26h 10m

£995

SouthamptonDa Nang

SOU - DAD

SOUDAD

Southampton Eastleigh

Tue 18/8

09:15-09:45

2 stops18h 30m

Da Nang

Mon 24/8

10:55-13:45

3 stops32h 50m

£1,034

SouthamptonHanoi

SOU - HAN

SOUHAN

Southampton Eastleigh

Mon 31/8

20:00-07:15

2 stops29h 15m

Hanoi Noibai

Tue 15/9

19:30-14:30

2 stops25h 00m

£1,041

Flights are sorted by cheapest return flights first.

Deals found on 21/7

Showing 1-10 of 27 resultsSorted by cheapest first
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2
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Best time to book a flight from Portsmouth to Vietnam

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

No data available for this route at this time. Please check back soon.

Related info for your journey

Find useful and relevant information for your journey from Portsmouth 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 most popular routes from Portsmouth to Vietnam?

    When deciding which route to take from Portsmouth to Vietnam consider Southampton Eastleigh - Ho Chi Minh City, Southampton Eastleigh - Hanoi Noibai or Southampton Eastleigh - Da Nang as they are the most popular.

  • What are the cheapest flights from Portsmouth to Vietnam?

    Looking for the cheapest flight from Portsmouth to Vietnam? While on average our users pay £1,642, our data indicates the cheapest price to be £392. The most popular route (Southampton Eastleigh - Ho Chi Minh City), is priced around £794.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Portsmouth 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.

See more FAQs

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Alternative routes for Portsmouth 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 Portsmouth to Vietnam

Discover the top 10 airlines that operate flights from Portsmouth 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 24 July 2026.
AirlineCheapestAverageFlexibilityOn-time
Hainan AirlinesCheapest£191Average£313FlexibilityNo cancel feeOn-time61%
Search Hainan Airlines flights
Etihad AirwaysCheapest£343Average£691FlexibilityNo cancel feeOn-time75%
Search Etihad Airways flights
China EasternCheapest£361Average£484FlexibilityNo cancel feeOn-time62%
Search China Eastern flights
Air ChinaCheapest£365Average£467FlexibilityNo cancel feeOn-time67%
Search Air China flights
Air IndiaCheapest£371Average£631FlexibilityNo cancel feeOn-timeN/A
Search Air India flights
Shenzhen AirlinesCheapest£379Average£496FlexibilityNo cancel feeOn-time63%
Search Shenzhen Airlines flights
China SouthernCheapest£410Average£608FlexibilityNo cancel feeOn-time69%
Search China Southern flights
Turkmenistan AirlinesCheapest£473Average£540FlexibilityNo cancel feeOn-time63%
Search Turkmenistan Airlines flights
Air FranceCheapest£509Average£551FlexibilityNo cancel feeOn-time77%
Search Air France flights
Malaysia AirlinesCheapest£519Average£762FlexibilityNo cancel feeOn-time67%
Search Malaysia 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 Portsmouth to Vietnam?

Cheapflights makes it easy to find Portsmouth to Vietnam flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

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

Millions of users choose and trust Cheapflights to book the best flight deals from Portsmouth to Vietnam for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

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

Certainly. Search results for flights to Vietnam from Portsmouth 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 Portsmouth to Vietnam become cheaper?

Yes, Cheapflights offers price alerts on Portsmouth to Vietnam flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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