Find flights
When to book
Airlines
FAQs

Cheap flights from Portsmouth to Vietnam from £425

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 1/10. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — SGN
9 Jul — 16 Jul1
1 adult

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 4 July 2025.

Round-trip from

£826

One-way from

£425

Popular in

July

Cheapest in

November

Average price

£840
16/8-23/8
  • 16/8-23/8
  • 5 total stops
  • 54h 50m total
  • Portsmouth to Vietnam
Search Deals
1/10
  • 1/10
  • 3 total stops
  • 50h 00m total
  • Portsmouth to Vietnam
Search Deals
Highest demand for flights based on searches. 11% potential increase in price (£61 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 2025
Search Deals

Find flight deals from Portsmouth to Vietnam

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 4 July 2025.

Sat 16/808:25SOU - HAN
2 stops22h 50mMultiple Airlines
Sat 23/819:00HAN - SOU
3 stops32h 00mMultiple Airlines
Deal found 2/7£826
Sun 28/909:20SOU - SGN
2 stops21h 45mKLM
Thu 2/1008:45SGN - SOU
2 stops38h 15mKLM
Deal found 3/7£996
Sun 14/909:10SOU - HAN
2 stops22h 45mQatar Airways
Tue 23/919:30HAN - SOU
2 stops30h 00mQatar Airways
Deal found 3/7£1,064
Sun 28/909:20SOU - HAN
2 stops26h 30mKLM
Thu 2/1008:50HAN - SOU
2 stops29h 55mKLM
Deal found 3/7£1,104
Mon 15/1209:30SOU - SGN
2 stops20h 35mQatar Airways
Sun 18/119:40SGN - SOU
2 stops31h 00mQatar Airways
Deal found 3/7£1,456
Wed 17/1209:30SOU - SGN
2 stops38h 45mMultiple Airlines
Fri 16/119:40SGN - SOU
2 stops25h 55mMultiple Airlines
Deal found 2/7£1,784

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 4 July 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

SouthamptonHanoi

SOU - HAN

SOUHAN

Southampton Eastleigh

Sat 16/8

08:25-13:15

2 stops22h 50m

Hanoi Noibai

Sat 23/8

19:00-21:00

3 stops32h 00m

£826

SouthamptonHo Chi Minh City

SOU - SGN

SOUSGN

Southampton Eastleigh

Sun 28/9

09:20-13:05

2 stops21h 45m

Ho Chi Minh City

Thu 2/10

08:45-17:00

2 stops38h 15m

£996

SouthamptonHanoi

SOU - HAN

SOUHAN

Southampton Eastleigh

Sun 14/9

09:10-13:55

2 stops22h 45m

Hanoi Noibai

Tue 23/9

19:30-19:30

2 stops30h 00m

£1,064

SouthamptonHanoi

SOU - HAN

SOUHAN

Southampton Eastleigh

Sun 28/9

09:20-17:50

2 stops26h 30m

Hanoi Noibai

Thu 2/10

08:50-08:45

2 stops29h 55m

£1,104

SouthamptonHo Chi Minh City

SOU - SGN

SOUSGN

Southampton Eastleigh

Mon 15/12

09:30-13:05

2 stops20h 35m

Ho Chi Minh City

Sun 18/1

19:40-19:40

2 stops31h 00m

£1,456

SouthamptonHo Chi Minh City

SOU - SGN

SOUSGN

Southampton Eastleigh

Wed 17/12

09:30-07:15

2 stops38h 45m

Ho Chi Minh City

Fri 16/1

19:40-14:35

2 stops25h 55m

£1,784

SouthamptonHo Chi Minh City

SOU - SGN

SOUSGN

Southampton Eastleigh

Wed 1/10

20:00-04:00

3 stops50h 00m

£425

SouthamptonHo Chi Minh City

SOU - SGN

SOUSGN

Southampton Eastleigh

Wed 1/10

09:10-13:50

2 stops22h 40m

£818

SouthamptonHanoi

SOU - HAN

SOUHAN

Southampton Eastleigh

Wed 24/12

08:40-12:20

2 stops20h 40m

£1,119

SouthamptonHanoi

SOU - HAN

SOUHAN

Southampton Eastleigh

Fri 26/12

09:30-12:20

2 stops19h 50m

£1,315

Flights are sorted by cheapest return flights first.

Deals found on 2/7

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, May is the cheapest month in which you can book a flight from Portsmouth to Vietnam (average of £820). Flying from Portsmouth to Vietnam in July is currently the most expensive (average of £1,143). 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 4 July 2025.

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.

Reviews of airlines servicing Vietnam

Get insights into the airlines that provide service to Vietnam. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Vietnam. Reviews last updated 4 July 2025.
Check out reviews from past customers who have flown with KLM and Qatar Airways from Portsmouth to Vietnam to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
KLM
7.8
Good
1,367 reviews
Check prices

Comfort

7.7

Food

7.2

Overall

7.8

Crew

8.4

Entertainment

7.1

Boarding

7.8

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.
KLM
7.8
Good
1,367 reviews
KLM
7.8
Good
1,367 reviews
Check prices

Comfort

7.7

Food

7.2

Overall

7.8

Crew

8.4

Entertainment

7.1

Boarding

7.8

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.
Qatar Airways
7.4
Good
3,588 reviews
KLM
7.8
Good
1,367 reviews
Check prices

Comfort

7.7

Food

7.2

Overall

7.8

Crew

8.4

Entertainment

7.1

Boarding

7.8

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

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 - Hanoi Noibai, Southampton Eastleigh - Ho Chi Minh City 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 £1,515, our data indicates the cheapest price to be £419. The most popular route (Southampton Eastleigh - Hanoi Noibai), is priced around £1,064.

  • 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, May is the cheapest month in which you can book a flight from Portsmouth to Vietnam (average of £820). Flying from Portsmouth to Vietnam in July is currently the most expensive (average of £1,143). 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 Kuala Lumpur Intl flights
Heathrow to Manila flights
Heathrow to New Delhi flights
Heathrow to Narita flights
Manchester to Suvarnabhumi flights
Heathrow to Colombo flights
Heathrow to Hong Kong flights
Heathrow to Mumbai flights
Gatwick to Narita flights
Gatwick to Haneda flights
Gatwick to Manila flights
Heathrow to Singapore flights
Heathrow to Incheon Intl flights
London City to Haneda flights
Stansted to Manila flights
Stansted to Narita flights
London City to Manila flights
London City to Narita flights
Gatwick to Singapore flights
Gatwick to Kuala Lumpur Intl flights
Birmingham to Suvarnabhumi flights
London City to Kuala Lumpur Intl flights
Heathrow to Ho Chi Minh City flights
Gatwick to Colombo flights
Stansted to Kuala Lumpur Intl flights
Stansted to Colombo flights
Heathrow to Denpasar flights
Heathrow to Gimpo Intl flights
Luton to Suvarnabhumi flights
Heathrow to Bangalore flights
Stansted to New Delhi flights
Heathrow to Taiwan Taoyuan Intl flights
Manchester to Islamabad flights
Heathrow to Phuket City flights
Gatwick to New Delhi flights
Heathrow to Hyderabad flights
Gatwick to Mumbai flights
Stansted to Mumbai flights
Heathrow to Lahore flights
Gatwick to Denpasar flights
Gatwick to Hong Kong flights
London City to Denpasar flights
London City to Hong Kong flights
Heathrow to Islamabad flights
Heathrow to Don Mueang Intl 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 4 July 2025.
AirlineCheapestAverageFlexibilityOn-time
China EasternCheapest£311Average£558FlexibilityNo cancel feeOn-time62%
Search China Eastern flights
China SouthernCheapest£342Average£526FlexibilityNo cancel feeOn-time69%
Search China Southern flights
Air ChinaCheapest£346Average£461FlexibilityNo cancel feeOn-time67%
Search Air China flights
Shenzhen AirlinesCheapest£384Average£449FlexibilityNo cancel feeOn-time63%
Search Shenzhen Airlines flights
Air IndiaCheapest£398Average£623FlexibilityNo cancel feeOn-timeN/A
Search Air India flights
Singapore AirlinesCheapest£474Average£708FlexibilityNo cancel feeOn-time81%
Search Singapore Airlines flights
Etihad AirwaysCheapest£513Average£577FlexibilityNo cancel feeOn-time75%
Search Etihad Airways flights
EmiratesCheapest£532Average£763FlexibilityNo cancel feeOn-time75%
Search Emirates flights
Malaysia AirlinesCheapest£533Average£644FlexibilityNo cancel feeOn-time67%
Search Malaysia Airlines flights
Virgin AtlanticCheapest£534Average£665FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic 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.
Site
©2025 Cheapflights