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Cheap flights from London to Portsmouth from £62

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 24/6. Fares are subject to change and may not be available on all flights or dates of travel.
LON — LHR
7 Jul — 14 Jul1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from London to Portsmouth

Enter your travel dates to find the best prices.

Cheapest flights from London to Portsmouth
Explore the most affordable flight options available from London to Portsmouth. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 7 June 2026.

Fri 4/908:50
LTN
-
SOU
1 stop22h 30m
easyJet
Sat 12/907:50
SOU
-
LTN
1 stop8h 30m
easyJet
Deal found 2/6£114
Fri 4/919:15
STN
-
SOU
1 stop12h 05m
Multiple Airlines
Sat 12/907:50
SOU
-
STN
1 stop4h 20m
Multiple Airlines
Deal found 2/6£119
Wed 22/718:20
STN
-
SOU
1 stop14h 15m
Multiple Airlines
Wed 29/717:20
SOU
-
STN
1 stop14h 30m
Multiple Airlines
Deal found 6/6£134
Fri 4/913:20
LGW
-
SOU
1 stop18h 00m
easyJet
Sat 12/907:50
SOU
-
LGW
1 stop10h 20m
easyJet
Deal found 2/6£135
Thu 23/706:05
STN
-
SOU
1 stop5h 00m
Multiple Airlines
Mon 27/720:40
SOU
-
STN
1 stop10h 40m
Multiple Airlines
Deal found 6/6£139
Wed 1/718:20
STN
-
SOU
1 stop14h 15m
Multiple Airlines
Tue 7/717:20
SOU
-
STN
1 stop6h 00m
Multiple Airlines
Deal found 4/6£141
Fri 4/922:15
LTN
-
SOU
1 stop13h 30m
Multiple Airlines
Sat 12/907:50
SOU
-
LTN
2 stops16h 40m
Multiple Airlines
Deal found 2/6£143
Wed 19/819:35
STN
-
SOU
1 stop13h 10m
Multiple Airlines
Thu 27/811:40
SOU
-
STN
1 stop8h 40m
Multiple Airlines
Deal found 4/6£145
Wed 1/716:05
LTN
-
SOU
1 stop16h 30m
Multiple Airlines
Wed 8/708:55
SOU
-
LTN
1 stop12h 25m
Multiple Airlines
Deal found 3/6£146
Wed 1/711:50
LTN
-
SOU
1 stop20h 45m
Multiple Airlines
Thu 16/708:55
SOU
-
LTN
1 stop4h 05m
Multiple Airlines
Deal found 5/6£148
Wed 17/616:05
LTN
-
SOU
1 stop16h 30m
Multiple Airlines
Tue 30/620:00
SOU
-
LTN
2 stops23h 10m
Multiple Airlines
Deal found 5/6£152
Wed 1/706:15
LTN
-
SOU
1 stop13h 15m
Multiple Airlines
Tue 7/717:20
SOU
-
LTN
1 stop5h 30m
Multiple Airlines
Deal found 6/6£153

Find flight deals from London to Portsmouth

Keep the following information in mind while searching for London to Portsmouth flight deals. Data was last updated 7 June 2026.

Round-trip from

£114

One-way from

£62
easyJet
  • easyJet
  • 4/9-12/9
  • 2 total stops
  • 31h 00m total
  • London to Portsmouth
Search Deals
24/6
  • 24/6
  • 1 total stop
  • 14h 15m total
  • London to Portsmouth
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from London 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 7 June 2026.
Use the filters below to find and compare flights from London to Portsmouth that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonSouthampton

STN - SOU

STNSOU

London Stansted

Wed 22/7

18:20-08:35

1 stop14h 15m

Southampton Eastleigh

Wed 29/7

17:20-07:50

1 stop14h 30m

£134

LondonSouthampton

STN - SOU

STNSOU

London Stansted

Thu 23/7

06:05-11:05

1 stop5h 00m

Southampton Eastleigh

Mon 27/7

20:40-07:20

1 stop10h 40m

£139

LondonSouthampton

STN - SOU

STNSOU

London Stansted

Wed 1/7

18:20-08:35

1 stop14h 15m

Southampton Eastleigh

Tue 7/7

17:20-23:20

1 stop6h 00m

£141

LondonSouthampton

LTN - SOU

LTNSOU

London Luton

Wed 1/7

16:05-08:35

1 stop16h 30m

Southampton Eastleigh

Tue 7/7

14:25-00:30

1 stop10h 05m

£148

LondonSouthampton

LTN - SOU

LTNSOU

London Luton

Wed 1/7

11:50-08:35

1 stop20h 45m

Southampton Eastleigh

Thu 16/7

08:55-13:00

1 stop4h 05m

£148

LondonSouthampton

STN - SOU

STNSOU

London Stansted

Wed 1/7

18:20-08:35

1 stop14h 15m

Southampton Eastleigh

Thu 16/7

17:20-23:20

1 stop6h 00m

£148

LondonSouthampton

LTN - SOU

LTNSOU

London Luton

Fri 4/9

17:10-07:20

2 stops14h 10m

Southampton Eastleigh

Sat 12/9

07:50-00:30

2 stops16h 40m

£151

LondonSouthampton

LTN - SOU

LTNSOU

London Luton

Wed 17/6

16:05-08:35

1 stop16h 30m

Southampton Eastleigh

Tue 30/6

17:20-22:50

1 stop5h 30m

£154

LondonSouthampton

LTN - SOU

LTNSOU

London Luton

Wed 1/7

15:15-08:35

2 stops17h 20m

Southampton Eastleigh

Wed 8/7

08:55-21:20

1 stop12h 25m

£154

LondonSouthampton

LTN - SOU

LTNSOU

London Luton

Tue 30/6

09:40-19:30

1 stop9h 50m

Southampton Eastleigh

Tue 7/7

19:30-08:10

1 stop12h 40m

£154

Flights are sorted by cheapest return flights first.

Deals found on 5/6

Showing 1-10 of 60 resultsSorted by cheapest first
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Best time to book a flight from London to Portsmouth

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

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

Find hourly flight availability from London 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 7 June 2026.

One of the essential ways to save on airfare from London to Portsmouth is to remain as flexible as possible. Flights that are at midday tend to be the most expensive. A flight in the evening could potentially save you up to 29% on airfare.

Related info for your journey

Find useful and relevant information for your journey from London to Portsmouth. 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 London to Portsmouth?

    There are many flights that can get you from London to Portsmouth in 11h 50m. Fly via KLM to get the fastest option. The distance from London to Portsmouth is about 53 mi.

  • What are the most popular routes from London to Portsmouth?

    While some choose either London City - Southampton Eastleigh or London Heathrow - Southampton Eastleigh, London Gatwick - Southampton Eastleigh is the most popular route from London to Portsmouth.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from London 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.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for London to Portsmouth

See prices for flight routes from nearby airports that may be better suited for you.
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Stansted to Edinburgh flights
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Southend to Edinburgh flights
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Luton to Newcastle upon Tyne flights
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Stansted to Newcastle upon Tyne flights
Newcastle upon Tyne to Southampton flights
Manchester to Edinburgh flights
Exeter to Edinburgh flights
Manchester to Newquay flights
Edinburgh to Bristol flights
Newcastle upon Tyne to Gatwick flights
Birmingham to Heathrow flights
Birmingham to Gatwick flights
Heathrow to Leeds flights
Manchester to Southampton flights
London City to Newcastle upon Tyne flights
Leeds to Heathrow flights
Liverpool to Heathrow 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 London to Portsmouth?

Cheapflights makes it easy to find London to Portsmouth 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 London to Portsmouth?

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 Portsmouth from London.

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

Certainly. Search results for flights to Portsmouth from London 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 London to Portsmouth become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Portsmouth from London today and book when prices fit your budget.

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