Find flights
When to book
FAQs

Cheap flights from Portsmouth to Vietnam from £282

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 15/3. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — SGN
18 Feb — 25 Feb1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Portsmouth to Vietnam

Keep the following information in mind while searching for Portsmouth to Vietnam flight deals. Data was last updated 19 January 2026.

Round-trip from

£1,163

One-way from

£282

Popular in

July

Cheapest in

November

Average price

£597
Qatar Airways
  • Qatar Airways
  • 17/3-6/4
  • 4 total stops
  • 61h 25m total
  • Portsmouth to Vietnam
Search Deals
15/3
  • 15/3
  • 3 total stops
  • 38h 45m total
  • Portsmouth to Vietnam
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 (£15 potential savings vs. average return price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

Find 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 19 January 2026.

Mon 7/909:10
SOU
-
SGN
2 stops22h 40m
Qatar Airways
Thu 24/920:00
SGN
-
SOU
2 stops29h 30m
Qatar Airways
Deal found 17/1£1,059
Thu 10/920:00
SOU
-
SGN
2 stops29h 40m
Qatar Airways
Mon 28/920:00
SGN
-
SOU
2 stops53h 30m
Qatar Airways
Deal found 17/1£1,069
Tue 8/908:55
SOU
-
SGN
2 stops22h 55m
Multiple Airlines
Fri 25/920:00
SGN
-
SOU
2 stops53h 30m
Multiple Airlines
Deal found 17/1£1,080
Sun 6/920:00
SOU
-
SGN
2 stops29h 40m
Qatar Airways
Tue 22/920:00
SGN
-
SOU
2 stops29h 30m
Qatar Airways
Deal found 17/1£1,086
Sun 6/909:10
SOU
-
SGN
2 stops22h 40m
Qatar Airways
Sat 26/920:00
SGN
-
SOU
2 stops29h 30m
Qatar Airways
Deal found 17/1£1,112
Mon 12/1020:00
SOU
-
HAN
2 stops29h 15m
Qatar Airways
Thu 22/1019:30
HAN
-
SOU
2 stops30h 00m
Qatar Airways
Deal found 18/1£1,146
Tue 17/308:40
SOU
-
HAN
2 stops20h 40m
Multiple Airlines
Mon 6/408:45
HAN
-
SOU
2 stops40h 45m
Multiple Airlines
Deal found 18/1£1,163
Sun 25/109:30
SOU
-
HAN
2 stops38h 25m
Qatar Airways
Tue 31/308:45
HAN
-
SOU
2 stops40h 45m
Qatar Airways
Deal found 18/1£1,164
Sun 25/109:30
SOU
-
HAN
2 stops38h 25m
Qatar Airways
Thu 2/408:45
HAN
-
SOU
2 stops40h 45m
Qatar Airways
Deal found 18/1£1,169
Tue 27/112:25
SOU
-
HAN
2 stops48h 20m
Qatar Airways
Tue 31/308:45
HAN
-
SOU
2 stops40h 45m
Qatar Airways
Deal found 18/1£1,216
Sun 25/109:30
SOU
-
HAN
2 stops38h 25m
Qatar Airways
Wed 1/419:30
HAN
-
SOU
2 stops54h 00m
Qatar Airways
Deal found 18/1£1,219
Tue 27/112:25
SOU
-
HAN
2 stops48h 20m
Qatar Airways
Thu 2/408:45
HAN
-
SOU
2 stops40h 45m
Qatar Airways
Deal found 18/1£1,222

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 19 January 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

SouthamptonHanoi

SOU - HAN

SOUHAN

Southampton Eastleigh

Tue 17/3

08:40-12:20

2 stops20h 40m

Hanoi Noibai

Mon 6/4

08:45-19:30

2 stops40h 45m

£1,163

SouthamptonHanoi

SOU - HAN

SOUHAN

Southampton Eastleigh

Sat 28/3

09:25-08:30

3 stops40h 05m

Hanoi Noibai

Sat 11/4

12:20-08:35

3 stops50h 15m

£1,222

SouthamptonHanoi

SOU - HAN

SOUHAN

Southampton Eastleigh

Mon 23/2

20:10-12:20

2 stops33h 10m

Hanoi Noibai

Sat 14/3

19:10-15:35

2 stops27h 25m

£1,233

SouthamptonHanoi

SOU - HAN

SOUHAN

Southampton Eastleigh

Mon 11/5

20:00-14:00

2 stops36h 00m

Hanoi Noibai

Thu 21/5

19:30-19:30

2 stops30h 00m

£1,342

SouthamptonHanoi

SOU - HAN

SOUHAN

Southampton Eastleigh

Mon 23/2

09:30-12:20

2 stops19h 50m

Hanoi Noibai

Sat 14/3

19:10-15:35

2 stops27h 25m

£1,375

SouthamptonHanoi

SOU - HAN

SOUHAN

Southampton Eastleigh

Sat 28/2

10:15-12:20

2 stops19h 05m

Hanoi Noibai

Thu 12/3

01:45-16:20

2 stops21h 35m

£1,399

SouthamptonHo Chi Minh City

SOU - SGN

SOUSGN

Southampton Eastleigh

Fri 30/1

20:10-07:15

2 stops52h 05m

Ho Chi Minh City

Mon 9/2

08:55-15:35

2 stops37h 40m

£1,479

SouthamptonHo Chi Minh City

SOU - SGN

SOUSGN

Southampton Eastleigh

Fri 30/1

20:10-07:15

2 stops52h 05m

Ho Chi Minh City

Tue 10/2

08:55-15:35

2 stops37h 40m

£1,479

SouthamptonHo Chi Minh City

SOU - SGN

SOUSGN

Southampton Eastleigh

Fri 30/1

20:10-07:15

2 stops52h 05m

Ho Chi Minh City

Thu 5/2

08:55-19:40

2 stops41h 45m

£1,479

SouthamptonHanoi

SOU - HAN

SOUHAN

Southampton Eastleigh

Thu 29/1

20:10-12:20

2 stops33h 10m

Hanoi Noibai

Tue 31/3

08:45-19:30

2 stops40h 45m

£1,480

Flights are sorted by cheapest return flights first.

Deals found on 18/1

Showing 1-10 of 31 results
1
2
3
4

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 £256). Flying from Portsmouth to Vietnam in August is currently the most expensive (average of £586). 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 19 January 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 33h 10m. 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 £1,170, our data indicates the cheapest price to be £397. The most popular route (Southampton Eastleigh - Hanoi Noibai), is priced around £742.

  • 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 £256). Flying from Portsmouth to Vietnam in August is currently the most expensive (average of £586). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Portsmouth to Vietnam

See prices for flight routes from nearby airports that may be better suited for you.
Heathrow to Suvarnabhumi flights
Gatwick to Suvarnabhumi flights
Heathrow to Haneda flights
London City to Suvarnabhumi flights
Stansted to Suvarnabhumi flights
Heathrow to Narita flights
Heathrow to Colombo flights
Gatwick to Narita flights
Gatwick to Haneda flights
Heathrow to New Delhi flights
Heathrow to Kuala Lumpur Intl flights
Stansted to Narita flights
Heathrow to Hong Kong flights
London City to Narita flights
Manchester to Suvarnabhumi flights
Heathrow to Manila flights
Luton to Suvarnabhumi flights
Heathrow to Mumbai flights
London City to Haneda flights
Stansted to Haneda flights
Heathrow to Incheon Intl flights
Heathrow to Don Mueang Intl flights
Manchester to Islamabad flights
Heathrow to Islamabad flights
Heathrow to Singapore flights
Heathrow to Lahore flights
Gatwick to Colombo flights
Gatwick to Manila flights
Heathrow to Phuket City flights
Stansted to Manila flights
Gatwick to Islamabad flights
Heathrow to Hanoi flights
London City to Manila flights
Heathrow to Denpasar flights
Stansted to Colombo flights
Gatwick to Kuala Lumpur Intl flights
Stansted to New Delhi flights
London City to Colombo flights
Gatwick to Singapore flights
Stansted to Islamabad flights
Gatwick to New Delhi flights
Stansted to Kuala Lumpur Intl flights
Gatwick to Phuket City flights
Heathrow to Malé flights
Gatwick to Hong Kong flights
London City to Kuala Lumpur Intl flights
Stansted to Hong Kong flights
Heathrow to Taiwan Taoyuan Intl flights
Heathrow to Gimpo Intl flights
London City to Hong Kong flights

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 19 January 2026.
AirlineCheapestAverageFlexibilityOn-time
China EasternCheapest£340Average£502FlexibilityNo cancel feeOn-time62%
Search China Eastern flights
Air ChinaCheapest£343Average£451FlexibilityNo cancel feeOn-time67%
Search Air China flights
Air IndiaCheapest£372Average£598FlexibilityNo cancel feeOn-timeN/A
Search Air India flights
Shenzhen AirlinesCheapest£379Average£493FlexibilityNo cancel feeOn-time63%
Search Shenzhen Airlines flights
China SouthernCheapest£384Average£557FlexibilityNo cancel feeOn-time69%
Search China Southern flights
Turkmenistan AirlinesCheapest£479Average£544FlexibilityNo cancel feeOn-time63%
Search Turkmenistan Airlines flights
Malaysia AirlinesCheapest£509Average£622FlexibilityNo cancel feeOn-time67%
Search Malaysia Airlines flights
Etihad AirwaysCheapest£513Average£614FlexibilityNo cancel feeOn-time75%
Search Etihad Airways flights
Air FranceCheapest£518Average£562FlexibilityNo cancel feeOn-time77%
Search Air France flights
Vietnam AirlinesCheapest£537Average£785FlexibilityNo cancel feeOn-time81%
Search Vietnam 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.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.