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Cheap flights from Portsmouth to Vietnam from £509

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 5/4. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — SGN
16 Nov — 23 Nov1
1 adult
1 adult, Economy

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 17 October 2025.

Round-trip from

£841

One-way from

£509

Popular in

July

Cheapest in

November

Average price

£610
6/12-13/12
  • 6/12-13/12
  • 5 total stops
  • 63h 35m total
  • Portsmouth to Vietnam
Search Deals
5/4
  • 5/4
  • 2 total stops
  • 53h 50m total
  • Portsmouth to Vietnam
Search Deals
Highest demand for flights based on searches. 12% potential increase in price (£72 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£15 potential savings vs. average return price).
Search Deals
Average for round-trip flights in October 2025
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 17 October 2025.

Sat 6/1209:25SOU - SGN
2 stops32h 45mMultiple Airlines
Sat 13/1217:35SGN - SOU
3 stops30h 50mMultiple Airlines
Deal found 16/10£841
Sun 7/1220:10SOU - SGN
2 stops28h 05mQatar Airways
Sun 14/1219:40SGN - SOU
2 stops31h 00mQatar Airways
Deal found 16/10£1,166
Fri 5/1220:10SOU - SGN
2 stops28h 05mQatar Airways
Sun 14/1208:55SGN - SOU
2 stops41h 45mQatar Airways
Deal found 16/10£1,168
Fri 5/1220:10SOU - SGN
2 stops52h 05mQatar Airways
Sat 13/1208:55SGN - SOU
2 stops41h 45mQatar Airways
Deal found 16/10£1,176
Tue 21/1009:10SOU - SGN
2 stops22h 40mQatar Airways
Mon 27/1008:55SGN - SOU
2 stops41h 45mQatar Airways
Deal found 15/10£1,415
Tue 21/1009:10SOU - SGN
2 stops22h 40mMultiple Airlines
Mon 27/1019:40SGN - SOU
2 stops31h 00mMultiple Airlines
Deal found 16/10£1,461

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 17 October 2025.
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

SouthamptonHo Chi Minh City

SOU - SGN

SOUSGN

Southampton Eastleigh

Sat 6/12

09:25-01:10

2 stops32h 45m

Ho Chi Minh City

Sat 13/12

17:35-17:25

3 stops30h 50m

£841

SouthamptonHo Chi Minh City

SOU - SGN

SOUSGN

Southampton Eastleigh

Thu 5/2

09:30-07:15

2 stops38h 45m

Ho Chi Minh City

Mon 16/2

08:55-15:35

2 stops37h 40m

£1,013

SouthamptonHo Chi Minh City

SOU - SGN

SOUSGN

Southampton Eastleigh

Mon 2/2

09:30-07:15

2 stops38h 45m

Ho Chi Minh City

Tue 17/2

08:55-15:35

2 stops37h 40m

£1,013

SouthamptonHo Chi Minh City

SOU - SGN

SOUSGN

Southampton Eastleigh

Thu 26/3

08:50-16:05

2 stops24h 15m

Ho Chi Minh City

Mon 30/3

16:40-08:50

2 stops22h 10m

£1,016

SouthamptonHo Chi Minh City

SOU - SGN

SOUSGN

Southampton Eastleigh

Tue 24/2

12:25-07:15

2 stops35h 50m

Ho Chi Minh City

Wed 4/3

08:55-19:40

2 stops41h 45m

£1,033

SouthamptonHo Chi Minh City

SOU - SGN

SOUSGN

Southampton Eastleigh

Thu 26/2

09:30-07:15

2 stops38h 45m

Ho Chi Minh City

Wed 4/3

08:55-15:35

2 stops37h 40m

£1,033

SouthamptonHo Chi Minh City

SOU - SGN

SOUSGN

Southampton Eastleigh

Thu 26/2

09:30-07:15

2 stops38h 45m

Ho Chi Minh City

Tue 3/3

08:55-15:35

2 stops37h 40m

£1,033

SouthamptonHo Chi Minh City

SOU - SGN

SOUSGN

Southampton Eastleigh

Thu 26/2

09:30-07:15

2 stops38h 45m

Ho Chi Minh City

Mon 2/3

08:55-15:35

2 stops37h 40m

£1,033

SouthamptonHo Chi Minh City

SOU - SGN

SOUSGN

Southampton Eastleigh

Tue 24/2

12:25-07:15

2 stops35h 50m

Ho Chi Minh City

Tue 3/3

08:55-15:35

2 stops37h 40m

£1,033

SouthamptonHanoi

SOU - HAN

SOUHAN

Southampton Eastleigh

Sat 7/2

10:15-12:20

2 stops19h 05m

Hanoi Noibai

Sat 21/2

19:10-09:45

2 stops21h 35m

£1,148

Flights are sorted by cheapest return flights first.

Deals found on 16/10

Showing 1-10 of 26 results
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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

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

Currently, September is the cheapest month in which you can book a flight from Portsmouth to Vietnam (average of £334). Flying from Portsmouth to Vietnam in August is currently the most expensive (average of £584). 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 17 October 2025.

Unlike in the morning, when flights are generally more expensive, you can save up to 15% on flights from Portsmouth to Vietnam by exploring options for tickets in the evening.

What is the cheapest day to fly from Portsmouth to Vietnam?

Use this chart to determine the cheapest time to fly return from Portsmouth to Vietnam. Price data was last updated on 16 December 2024.

Travellers seeking maximum savings on their Portsmouth to Vietnam flight should consider departing on Wednesday evenings when fares are most often at their lowest. Saturday at midday flights should be avoided if possible as fares are typically the most expensive at this time.

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 and KLM can get you from Portsmouth to Vietnam in just under 24h 15m. Your travel time can differ by up to 14h 30m. The distance between Portsmouth and Vietnam is about 6395 mi. This flight may include one or multiple stops.

  • 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 most reliable airlines from Portsmouth to Vietnam?

    Consider Vietnam Airlines (56%), Scandinavian Airlines (56%) or Cambodia Angkor Air (56%) 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 £1,539, our data indicates the cheapest price to be £408. The most popular route (Southampton Eastleigh - Ho Chi Minh City), is priced around £841.

  • 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, September is the cheapest month in which you can book a flight from Portsmouth to Vietnam (average of £334). Flying from Portsmouth to Vietnam in August is currently the most expensive (average of £584). 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 17 October 2025.
AirlineCheapestAverageFlexibilityOn-time
Air ChinaCheapest£349Average£460FlexibilityNo cancel feeOn-time67%
Search Air China flights
China SouthernCheapest£380Average£561FlexibilityNo cancel feeOn-time69%
Search China Southern flights
Shenzhen AirlinesCheapest£382Average£463FlexibilityNo cancel feeOn-time63%
Search Shenzhen Airlines flights
Air IndiaCheapest£399Average£615FlexibilityNo cancel feeOn-timeN/A
Search Air India flights
China EasternCheapest£405Average£537FlexibilityNo cancel feeOn-time62%
Search China Eastern flights
Malaysia AirlinesCheapest£514Average£642FlexibilityNo cancel feeOn-time67%
Search Malaysia Airlines flights
Etihad AirwaysCheapest£527Average£614FlexibilityNo cancel feeOn-time75%
Search Etihad Airways flights
Air FranceCheapest£540Average£832FlexibilityNo cancel feeOn-time77%
Search Air France flights
EmiratesCheapest£541Average£851FlexibilityNo cancel feeOn-time75%
Search Emirates flights
Singapore AirlinesCheapest£547Average£709FlexibilityNo cancel feeOn-time81%
Search Singapore 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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