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Cheap flights from Portsmouth to Vietnam from £785

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 19/2. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — SGN
14 Mar — 21 Mar1
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 12 February 2026.

Thu 26/308:50
SOU
-
HAN
2 stops33h 55m
Multiple Airlines
Wed 1/402:20
HAN
-
SOU
2 stops36h 15m
Multiple Airlines
Deal found 9/2£865
Sat 28/317:30
SOU
-
DAD
3 stops33h 25m
Multiple Airlines
Sat 4/412:20
DAD
-
SOU
3 stops34h 15m
Multiple Airlines
Deal found 11/2£1,160
Sun 8/309:30
SOU
-
HAN
2 stops19h 50m
Multiple Airlines
Tue 24/308:55
HAN
-
SOU
2 stops37h 40m
Multiple Airlines
Deal found 10/2£1,193
Fri 27/308:50
SOU
-
DAD
3 stops25h 40m
Multiple Airlines
Fri 3/413:10
DAD
-
SOU
3 stops28h 35m
Multiple Airlines
Deal found 9/2£1,231
Sat 28/309:25
SOU
-
HAN
3 stops31h 50m
Multiple Airlines
Sat 4/409:35
HAN
-
SOU
3 stops37h 00m
Multiple Airlines
Deal found 11/2£1,256
Sun 8/309:30
SOU
-
HAN
2 stops19h 50m
Multiple Airlines
Mon 23/319:10
HAN
-
SOU
2 stops51h 25m
Multiple Airlines
Deal found 10/2£1,292
Fri 15/520:00
SOU
-
HAN
2 stops30h 05m
Qatar Airways
Tue 19/519:30
HAN
-
SOU
2 stops30h 00m
Qatar Airways
Deal found 8/2£1,355
Thu 12/309:30
SOU
-
SGN
2 stops38h 45m
Qatar Airways
Mon 16/308:55
SGN
-
SOU
2 stops37h 40m
Qatar Airways
Deal found 9/2£1,832
Fri 3/420:00
SOU
-
SGN
2 stops29h 40m
Qatar Airways
Sun 12/420:00
SGN
-
SOU
2 stops29h 30m
Qatar Airways
Deal found 10/2£2,061

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 12 February 2026.

Round-trip from

£865

One-way from

£785

Popular in

July

Cheapest in

November

Average price

£619
26/3-1/4
  • 26/3-1/4
  • 4 total stops
  • 70h 10m total
  • Portsmouth to Vietnam
Search Deals
19/2
  • 19/2
  • 2 total stops
  • 21h 25m 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. 3% potential price decrease (£14 potential savings vs. average return price).
Search Deals
Average for round-trip flights in February 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 12 February 2026.
Use the filters below to find and compare flights from Portsmouth to Vietnam that are best for you.

Fly from

Portsmouth

Fly to

Vietnam

Route

Depart

Return

Price

SouthamptonDa Nang

SOU - DAD

SOUDAD

Southampton Eastleigh

Sat 28/3

17:30-09:55

3 stops33h 25m

Da Nang

Sat 4/4

12:20-16:35

3 stops34h 15m

£1,160

SouthamptonHanoi

SOU - HAN

SOUHAN

Southampton Eastleigh

Sun 8/3

09:30-12:20

2 stops19h 50m

Hanoi Noibai

Tue 24/3

08:55-15:35

2 stops37h 40m

£1,193

SouthamptonDa Nang

SOU - DAD

SOUDAD

Southampton Eastleigh

Fri 27/3

08:50-17:30

3 stops25h 40m

Da Nang

Fri 3/4

13:10-11:45

3 stops28h 35m

£1,231

SouthamptonHanoi

SOU - HAN

SOUHAN

Southampton Eastleigh

Sat 28/3

09:25-00:15

3 stops31h 50m

Hanoi Noibai

Sat 4/4

09:35-16:35

3 stops37h 00m

£1,256

SouthamptonHanoi

SOU - HAN

SOUHAN

Southampton Eastleigh

Sun 8/3

09:30-12:20

2 stops19h 50m

Hanoi Noibai

Mon 23/3

19:10-15:35

2 stops51h 25m

£1,292

SouthamptonHanoi

SOU - HAN

SOUHAN

Southampton Eastleigh

Fri 15/5

20:00-08:05

2 stops30h 05m

Hanoi Noibai

Tue 19/5

19:30-19:30

2 stops30h 00m

£1,355

SouthamptonHanoi

SOU - HAN

SOUHAN

Southampton Eastleigh

Fri 10/7

20:00-13:55

2 stops35h 55m

Hanoi Noibai

Mon 27/7

19:30-19:30

2 stops30h 00m

£1,357

SouthamptonHanoi

SOU - HAN

SOUHAN

Southampton Eastleigh

Tue 14/7

20:00-13:55

2 stops35h 55m

Hanoi Noibai

Tue 4/8

19:30-19:30

2 stops30h 00m

£1,590

SouthamptonHanoi

SOU - HAN

SOUHAN

Southampton Eastleigh

Tue 14/7

20:00-13:55

2 stops35h 55m

Hanoi Noibai

Tue 4/8

03:00-19:30

2 stops22h 30m

£1,590

SouthamptonHo Chi Minh City

SOU - SGN

SOUSGN

Southampton Eastleigh

Thu 12/3

09:30-07:15

2 stops38h 45m

Ho Chi Minh City

Mon 16/3

08:55-15:35

2 stops37h 40m

£1,832

Flights are sorted by cheapest return flights first.

Deals found on 9/2

Showing 1-10 of 18 results
1
2

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

What is the cheapest month to book a flight from Portsmouth to Vietnam?

Currently, January is the cheapest month in which you can book a flight from Portsmouth to Vietnam (average of £250). Flying from Portsmouth to Vietnam in August is currently the most expensive (average of £574). 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 P0R to VN?

Find hourly flight availability from Portsmouth 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 12 February 2026.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Portsmouth to Vietnam as you normally would.

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.

  • How long is the flight from Portsmouth to Vietnam?

    Qatar Airways can get you from Portsmouth to Vietnam in just under 30h 05m. Your travel time can differ by up to . The distance between Portsmouth and Vietnam is about 5787 mi.

  • What are the most popular routes from Portsmouth to Vietnam?

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

  • What are the most reliable airlines from Portsmouth to Vietnam?

    Consider Vietnam Airlines (96%), Scandinavian Airlines (96%) or Cambodia Angkor Air (96%) when booking your flight. These represent the most reliable airlines when flying from Portsmouth to Vietnam.

  • What are the cheapest flights from Portsmouth to Vietnam?

    Looking for the cheapest flight from Portsmouth to Vietnam? While on average our users pay £981, our data indicates the cheapest price to be £384. The most popular route (Southampton Eastleigh - Hanoi Noibai), is priced around £1,193.

  • 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.

  • What is the cheapest month to book a flight from Portsmouth to Vietnam?

    Currently, January is the cheapest month in which you can book a flight from Portsmouth to Vietnam (average of £250). Flying from Portsmouth to Vietnam in August is currently the most expensive (average of £574). 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 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 12 February 2026.
AirlineCheapestAverageFlexibilityOn-time
Air ChinaCheapest£336Average£446FlexibilityNo cancel feeOn-time67%
Search Air China flights
China EasternCheapest£349Average£470FlexibilityNo cancel feeOn-time62%
Search China Eastern flights
Air IndiaCheapest£364Average£584FlexibilityNo cancel feeOn-timeN/A
Search Air India flights
Shenzhen AirlinesCheapest£372Average£485FlexibilityNo cancel feeOn-time63%
Search Shenzhen Airlines flights
China SouthernCheapest£379Average£540FlexibilityNo cancel feeOn-time69%
Search China Southern flights
Turkmenistan AirlinesCheapest£469Average£533FlexibilityNo cancel feeOn-time63%
Search Turkmenistan Airlines flights
Malaysia AirlinesCheapest£495Average£653FlexibilityNo cancel feeOn-time67%
Search Malaysia Airlines flights
Etihad AirwaysCheapest£503Average£603FlexibilityNo cancel feeOn-time75%
Search Etihad Airways flights
Air FranceCheapest£507Average£804FlexibilityNo cancel feeOn-time77%
Search Air France flights
Turkish AirlinesCheapest£524Average£745FlexibilityNo cancel feeOn-time77%
Search Turkish 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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