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Cheap flights from Portsmouth to Hanoi from £645

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 7/10. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — HAN
15 Sep — 22 Sep1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Portsmouth to Hanoi

Enter your travel dates to find the best prices.

Cheapest flights from Portsmouth to Hanoi
Explore the most affordable flight options available from Portsmouth to Hanoi. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 16 August 2026.

Sun 27/909:20 -
3 stops32h 55m
Sun 4/1011:10 -
3 stops38h 20m
Deal found 13/8£711
Tue 29/1219:55 -
2 stops28h 00m
Tue 12/119:10 -
2 stops31h 15m
Deal found 14/8£1,045
Thu 24/920:00 -
2 stops29h 15m
Mon 28/919:30 -
2 stops30h 00m
Deal found 13/8£1,078
Sun 30/809:20 -
2 stops22h 35m
Sat 12/919:30 -
2 stops20h 15m
Deal found 15/8£1,116
Tue 29/1220:00 -
2 stops27h 55m
Thu 14/119:10 -
2 stops31h 20m
Deal found 14/8£1,135
Thu 31/1209:20 -
2 stops38h 35m
Thu 14/119:10 -
2 stops31h 20m
Deal found 14/8£1,138
Mon 28/1220:00 -
2 stops51h 55m
Thu 14/119:10 -
2 stops31h 20m
Deal found 14/8£1,144
Tue 29/1220:00 -
2 stops27h 55m
Fri 15/119:10 -
2 stops55h 20m
Deal found 14/8£1,170

Find flight deals from Portsmouth to Hanoi

Keep the following information in mind while searching for Portsmouth to Hanoi flight deals. Data was last updated 16 August 2026.

Round-trip from

£711

One-way from

£645

Popular in

July

Cheapest in

September

Average price

£714
27/9-4/10
  • 27/9-4/10
  • 6 total stops
  • 71h 15m total
  • Portsmouth to Hanoi
Search Deals
7/10
  • 7/10
  • 2 total stops
  • 23h 00m total
  • Portsmouth to Hanoi
Search Deals
Highest demand for flights based on searches. 16% potential increase in price (£86 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£13 potential savings vs. average return price).
Search Deals
Average for round-trip flights in August 2026
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Cheapflights Fare Finder

 
Customise your flight search to find flights from Portsmouth to Hanoi 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 16 August 2026.
Use the filters below to find and compare flights from Portsmouth to Hanoi that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

SouthamptonHanoi

SOU Southampton Eastleigh - HAN Hanoi Noibai

SOUHAN

Southampton Eastleigh

Sun 27/9

09:20-00:15

3 stops32h 55m

Hanoi Noibai

Sun 4/10

11:10-19:30

3 stops38h 20m

£711

SouthamptonHanoi

SOU Southampton Eastleigh - HAN Hanoi Noibai

SOUHAN

Southampton Eastleigh

Fri 5/2

08:55-12:20

2 stops20h 25m

Hanoi Noibai

Mon 22/3

08:55-19:25

2 stops41h 30m

£939

SouthamptonHanoi

SOU Southampton Eastleigh - HAN Hanoi Noibai

SOUHAN

Southampton Eastleigh

Thu 24/9

20:00-07:15

2 stops29h 15m

Hanoi Noibai

Mon 28/9

19:30-19:30

2 stops30h 00m

£1,078
Fastest return journey

SouthamptonHanoi

SOU Southampton Eastleigh - HAN Hanoi Noibai

SOUHAN

Southampton Eastleigh

Sun 30/8

09:20-13:55

2 stops22h 35m

Hanoi Noibai

Sat 12/9

19:30-09:45

2 stops20h 15m

£1,116

SouthamptonHanoi

SOU Southampton Eastleigh - HAN Hanoi Noibai

SOUHAN

Southampton Eastleigh

Thu 31/12

09:20-06:55

2 stops38h 35m

Hanoi Noibai

Thu 14/1

19:10-19:30

2 stops31h 20m

£1,138
Cheapest one-way

SouthamptonHanoi

SOU Southampton Eastleigh - HAN Hanoi Noibai

SOUHAN

Southampton Eastleigh

Wed 7/10

08:55-13:55

2 stops23h 00m

£645
Fastest single journey

SouthamptonHanoi

SOU Southampton Eastleigh - HAN Hanoi Noibai

SOUHAN

Southampton Eastleigh

Thu 29/10

09:20-12:20

2 stops20h 00m

£651

SouthamptonHanoi

SOU Southampton Eastleigh - HAN Hanoi Noibai

SOUHAN

Southampton Eastleigh

Sat 10/10

20:00-07:15

2 stops53h 15m

£681

SouthamptonHanoi

SOU Southampton Eastleigh - HAN Hanoi Noibai

SOUHAN

Southampton Eastleigh

Thu 8/10

20:00-13:55

2 stops35h 55m

£736

SouthamptonHanoi

SOU Southampton Eastleigh - HAN Hanoi Noibai

SOUHAN

Southampton Eastleigh

Fri 9/10

20:00-13:55

2 stops35h 55m

£747

Flights are sorted by cheapest return flights first.

Deals found on 14/8

Showing 1-10 of 12 resultsSorted by cheapest first
1
2

Best time to book a flight from Portsmouth to Hanoi

Have a flexible travel schedule? Discover the best time to fly to Hanoi 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 Hanoi

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 Hanoi. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Hanoi from Portsmouth?

    For a flight from Portsmouth to Hanoi, you will be flying into Noibai. Hanoi Noibai (HAN) is just 14.2 mi from the center of the city. Noibai is the only Hanoi airport and it handles 0 inbound flights from Portsmouth per day. 15 airlines have flights to Hanoi Noibai from Portsmouth on a regular basis.

  • What are the cheapest flights from Portsmouth to Hanoi?

    Looking at all options, your cheapest flight can be booked for £444. While the most popular route (Southampton Eastleigh - Hanoi Noibai) can be booked for £952 on average, our data indicates £1,809 when flying from Portsmouth to Hanoi.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Portsmouth to Hanoi 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

Browse thousands of different options on Cheapflights for your next trip

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Top 10 airlines flying from Portsmouth to Hanoi

Discover the top 10 airlines that operate flights from Portsmouth to Hanoi. 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 16 August 2026.
AirlineCheapestAverageFlexibilityOn-time
Hainan AirlinesCheapest£188Average£309FlexibilityNo cancel feeOn-time61%
Search Hainan Airlines flights
Air IndiaCheapest£258Average£665FlexibilityNo cancel feeOn-timeN/A
Search Air India flights
Etihad AirwaysCheapest£339Average£638FlexibilityNo cancel feeOn-time75%
Search Etihad Airways flights
China EasternCheapest£356Average£465FlexibilityNo cancel feeOn-time62%
Search China Eastern flights
Air ChinaCheapest£360Average£458FlexibilityNo cancel feeOn-time67%
Search Air China flights
Shenzhen AirlinesCheapest£365Average£464FlexibilityNo cancel feeOn-time63%
Search Shenzhen Airlines flights
China SouthernCheapest£401Average£661FlexibilityNo cancel feeOn-time69%
Search China Southern flights
Turkish AirlinesCheapest£559Average£751FlexibilityNo cancel feeOn-time77%
Search Turkish Airlines flights
Qatar AirwaysCheapest£561Average£718FlexibilityNo cancel feeOn-time68%
Search Qatar Airways flights
Cathay PacificCheapest£602Average£785FlexibilityNo cancel feeOn-time72%
Search Cathay Pacific 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 Hanoi?

When you search for this flight from Portsmouth to Hanoi, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

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

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Hanoi from Portsmouth.

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

Yes, we can. To see specific flights from Portsmouth to Hanoi with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from Portsmouth to Hanoi become cheaper?

Yes, Cheapflights offers price alerts on Portsmouth to Hanoi 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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