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Cheap flights from London Stansted Airport to Portsmouth from £70

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 4/10. Fares are subject to change and may not be available on all flights or dates of travel.
STN — LHR
19 May — 26 May1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Stansted to Portsmouth

Enter your travel dates to find the best prices.

Cheapest flights from Stansted to Portsmouth
Explore the most affordable flight options available from Stansted to Portsmouth. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 19 April 2026.

Mon 11/511:00
STN
-
SOU
1 stop8h 00m
Multiple Airlines
Mon 18/519:20
SOU
-
STN
1 stop12h 10m
Multiple Airlines
Deal found 13/4£111
Tue 12/508:35
STN
-
SOU
1 stop10h 25m
Multiple Airlines
Tue 19/512:35
SOU
-
STN
1 stop8h 50m
Multiple Airlines
Deal found 14/4£126
Wed 29/418:20
STN
-
SOU
1 stop14h 15m
Multiple Airlines
Sun 3/517:20
SOU
-
STN
1 stop14h 30m
Multiple Airlines
Deal found 14/4£132
Wed 13/518:20
STN
-
SOU
1 stop14h 15m
Multiple Airlines
Wed 20/512:35
SOU
-
STN
1 stop9h 00m
Multiple Airlines
Deal found 15/4£133
Fri 8/519:15
STN
-
SOU
1 stop12h 05m
Multiple Airlines
Sun 10/520:00
SOU
-
STN
1 stop11h 50m
Multiple Airlines
Deal found 15/4£147

Find flight deals from Stansted to Portsmouth

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

Round-trip from

£111

One-way from

£70
11/5-18/5
  • 11/5-18/5
  • 2 total stops
  • 20h 10m total
  • London to Portsmouth
Search Deals
4/10
  • 4/10
  • 1 total stop
  • 14h 30m total
  • London to Portsmouth
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Stansted to Portsmouth 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 April 2026.
Use the filters below to find and compare flights from London Stansted Airport to Portsmouth that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonSouthampton

STN - SOU

STNSOU

London Stansted

Mon 11/5

11:00-19:00

1 stop8h 00m

Southampton Eastleigh

Mon 18/5

19:20-07:30

1 stop12h 10m

£111

LondonSouthampton

STN - SOU

STNSOU

London Stansted

Wed 29/4

18:20-08:35

1 stop14h 15m

Southampton Eastleigh

Sun 3/5

17:20-07:50

1 stop14h 30m

£132

LondonSouthampton

STN - SOU

STNSOU

London Stansted

Wed 13/5

18:20-08:35

1 stop14h 15m

Southampton Eastleigh

Wed 20/5

20:00-07:50

1 stop11h 50m

£135

LondonSouthampton

STN - SOU

STNSOU

London Stansted

Fri 8/5

19:15-07:20

1 stop12h 05m

Southampton Eastleigh

Sun 10/5

20:00-07:50

1 stop11h 50m

£147

LondonSouthampton

STN - SOU

STNSOU

London Stansted

Fri 29/5

14:00-08:25

2 stops18h 25m

Southampton Eastleigh

Fri 5/6

09:25-21:00

1 stop11h 35m

£154

LondonSouthampton

STN - SOU

STNSOU

London Stansted

Tue 2/6

06:30-19:30

1 stop13h 00m

Southampton Eastleigh

Tue 9/6

20:00-07:50

1 stop11h 50m

£155
Fastest return journey

LondonSouthampton

STN - SOU

STNSOU

London Stansted

Fri 1/5

22:50-08:40

1 stop9h 50m

Southampton Eastleigh

Tue 5/5

13:25-22:50

1 stop9h 25m

£157

LondonSouthampton

STN - SOU

STNSOU

London Stansted

Fri 29/5

21:45-08:25

2 stops34h 40m

Southampton Eastleigh

Mon 1/6

12:55-23:50

1 stop10h 55m

£158

LondonSouthampton

STN - SOU

STNSOU

London Stansted

Thu 21/5

09:15-08:45

2 stops23h 30m

Southampton Eastleigh

Fri 22/5

20:00-07:50

1 stop11h 50m

£158
Cheapest one-way
Fastest single journey

LondonSouthampton

STN - SOU

STNSOU

London Stansted

Sat 30/5

22:00-12:05

1 stop14h 05m

£87

Flights are sorted by cheapest return flights first.

Deals found on 15/4

Showing 1-10 of 12 resultsSorted by cheapest first
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Best time to book a flight from Stansted to Portsmouth

Have a flexible travel schedule? Discover the best time to fly to Portsmouth from Stansted 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 London Stansted Airport to Portsmouth

What is the cheapest time of day to fly from STN to P0R?

Find hourly flight availability from Stansted to Portsmouth. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 19 April 2026.

A simple way to save on the total cost of your ticket is to fly from London Stansted Airport to Portsmouth in the evening. If you’re flexible enough to do this you can expect to save up to 25% on your trip compared to booking a flight at midday.

Related info for your journey

Find useful and relevant information for your journey from Stansted to Portsmouth. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Stansted to Portsmouth by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Stansted to Portsmouth

See prices for flight routes from nearby airports that may be better suited for you.
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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 Stansted to Portsmouth?

Cheapflights helps you search for flights from Stansted to Portsmouth via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

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

Millions of users choose and trust Cheapflights to book the best flight deals from Stansted to Portsmouth 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 Stansted to Portsmouth with no change fees?

Yes! Cheapflights helps users easily find flights from Stansted to Portsmouth with no change fees.

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

Yes, Cheapflights offers price alerts on Stansted to Portsmouth 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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