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£100+ Cheap flights to Portsmouth

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/12. Fares are subject to change and may not be available on all flights or dates of travel.
— LHR
14 déc. — 21 déc.1
1 adult
1 adult, Economy, 0 bags

Flights to Portsmouth in 2025

Find the latest flights to Portsmouth in 2025, with up-to-date prices and availability. In the last 7 days, Cheapflights users made a total of 858,174 searches and data was last updated on 14 novembre 2025.

One-way from

£153
Aurigny Air
  • Aurigny Air
  • 15/1
  • 1 total stop
  • 8h 00m total
  • London to Portsmouth
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Cheapest flights to Portsmouth
Explore the most affordable flight options available to Portsmouth. Find the lowest fares based on data from user searches, with prices last updated on 14 novembre 2025.

mer. 10/1216:45LTN - SOU
1 stop20h 50measyJet
mer. 17/1209:25SOU - LTN
1 stop5h 25measyJet
Deal found 11/11£100
mer. 10/1217:00LTN - SOU
2 stops20h 35mMultiple Airlines
mer. 17/1209:25SOU - LTN
1 stop12h 35mMultiple Airlines
Deal found 11/11£154
mer. 10/1217:50LGW - SOU
2 stops19h 45mMultiple Airlines
mer. 17/1209:25SOU - LGW
1 stop12h 35mMultiple Airlines
Deal found 11/11£156
jeu. 11/1208:00LTN - SOU
1 stop5h 35mMultiple Airlines
jeu. 18/1220:10SOU - LTN
1 stop12h 35mMultiple Airlines
Deal found 12/11£157
jeu. 11/1206:10LGW - SOU
1 stop7h 25measyJet
jeu. 18/1217:55SOU - LGW
1 stop4h 15measyJet
Deal found 12/11£159
ven. 28/1120:15LGW - SOU
1 stop18h 35mMultiple Airlines
mar. 2/1215:20SOU - LGW
1 stop15h 50mMultiple Airlines
Deal found 13/11£161
jeu. 11/1218:30LGW - SOU
2 stops19h 15mMultiple Airlines
jeu. 18/1217:55SOU - LGW
1 stop4h 15mMultiple Airlines
Deal found 12/11£164
jeu. 11/1221:20STN - SOU
2 stops16h 25mMultiple Airlines
jeu. 18/1220:10SOU - STN
1 stop11h 40mMultiple Airlines
Deal found 12/11£166
mer. 10/1220:55STN - SOU
2 stops16h 40mMultiple Airlines
mer. 17/1209:25SOU - STN
1 stop11h 10mMultiple Airlines
Deal found 13/11£171
mar. 25/1106:30STN - SOU
1 stop9h 05mMultiple Airlines
jeu. 27/1116:05SOU - STN
1 stop6h 45mMultiple Airlines
Deal found 12/11£189
ven. 28/1106:55LTN - SOU
1 stop6h 50mMultiple Airlines
mar. 2/1208:55SOU - LTN
1 stop4h 30mMultiple Airlines
Deal found 13/11£194
jeu. 27/1114:35SEN - SOU
1 stop17h 05measyJet
lun. 1/1208:30SOU - SEN
1 stop29h 20measyJet
Deal found 12/11£196

Cheapflights Fare Finder

 
Locate flights to Portsmouth that fit your budget, with regularly updated fares and availability. In the last 7 days, Cheapflights users made a total of 858,174 searches and data was last updated on 14 novembre 2025.
Use the filters below to find and compare flights to Portsmouth that are best for you.

Fly from

London

Route

Depart

Return

Price

LondonSouthampton

LTN - SOU

LTNSOU

London Luton

mer. 10/12

16:45-13:35

1 stop20h 50m

Southampton Eastleigh

mer. 17/12

09:25-14:50

1 stop5h 25m

£100

LondonSouthampton

LTN - SOU

LTNSOU

London Luton

mar. 3/3

18:50-08:50

1 stop14h 00m

Southampton Eastleigh

mar. 10/3

09:20-21:50

1 stop12h 30m

£137

LondonSouthampton

LTN - SOU

LTNSOU

London Luton

jeu. 1/1

13:15-17:20

1 stop4h 05m

Southampton Eastleigh

mer. 7/1

12:15-18:00

1 stop5h 45m

£138

LondonSouthampton

LGW - SOU

LGWSOU

London Gatwick

jeu. 1/1

13:15-17:20

1 stop4h 05m

Southampton Eastleigh

mer. 7/1

08:55-15:35

1 stop6h 40m

£145

LondonSouthampton

STN - SOU

STNSOU

London Stansted

mar. 3/3

08:30-15:35

1 stop7h 05m

Southampton Eastleigh

mar. 10/3

09:20-20:35

1 stop11h 15m

£148

LondonSouthampton

LGW - SOU

LGWSOU

London Gatwick

mar. 3/3

08:50-15:35

1 stop6h 45m

Southampton Eastleigh

mar. 10/3

15:20-08:40

2 stops17h 20m

£152

LondonSouthampton

LTN - SOU

LTNSOU

London Luton

mer. 10/12

17:00-13:35

2 stops20h 35m

Southampton Eastleigh

mer. 17/12

09:25-22:00

1 stop12h 35m

£154

LondonSouthampton

LGW - SOU

LGWSOU

London Gatwick

mer. 10/12

17:50-13:35

2 stops19h 45m

Southampton Eastleigh

mer. 17/12

09:25-22:00

1 stop12h 35m

£156

LondonSouthampton

LTN - SOU

LTNSOU

London Luton

jeu. 11/12

08:00-13:35

1 stop5h 35m

Southampton Eastleigh

jeu. 18/12

20:10-08:45

1 stop12h 35m

£157

LondonSouthampton

LGW - SOU

LGWSOU

London Gatwick

jeu. 11/12

06:10-13:35

1 stop7h 25m

Southampton Eastleigh

jeu. 18/12

17:55-22:10

1 stop4h 15m

£159

Flights are sorted by cheapest return flights first.

Deals found on 12/11

Showing 1-10 of 32 results
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Best time to book a flight to Portsmouth

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

How long is the flight to Portsmouth?

On average, a flight from London to Portsmouth takes 7 hours 39 minutes. Flights to Portsmouth from other popular cities in United Kingdom will vary in length. Below are a few examples of popular routes and their flight times.

Rainfall in Portsmouth by month

Plan your trip to Portsmouth by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Portsmouth ranges from 25.0 - 76.0 inches per month. December is typically the wettest month, when rainfall can reach 76.0 mm. July is typically the driest time to visit Portsmouth when rainfall is around 25.0 mm.

Temperature in Portsmouth by month

Plan your trip to Portsmouth by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Portsmouth, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 18.0 C. Travellers hoping to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 4.0 C).

FAQs about flying to Portsmouth

Getting around Portsmouth

The are several excellent local bus services which cover the city centre, Portsea Island, Southsea and numerous destinations in and around the city.  There are good local taxi firms, and you’ll also find licensed taxis at the airport and in the city centre which can simply be flagged down on the street.

Getting from the Airport to the City

Travellers booking flights to Portsmouth will most likely fly to Southampton Airport (SOU), which is the closest airport to the city, just 20 miles (32 km) from the centre of Portsmouth.  Take the train from Southampton Airport Parkway and change to a Portsmouth bound service at Southampton Central or at Eastleigh.  There are also taxis available from outside the terminal, and set fares to the city are not overly expensive.

  • Can I find cheaper flights to Portsmouth if I am willing to have stopovers?

    Yes, flights with stopovers are often cheaper than direct flights. Keep an eye out for flight deals to Portsmouth on Cheapflights that require 1 or 2 stops for potential cost savings.

  • What is the best airline to fly to Portsmouth?

    Based on reviews from Cheapflights users, Ryanair is rated the highest out of the airlines that fly to Portsmouth.

  • How much is a return flight to Portsmouth?

    A return flight to Portsmouth will typically cost around £152, however they can be found for as little as £27.

  • Where does the fastest flight to Portsmouth depart from?

    For those looking to save time traveling to Portsmouth, Manchester offers the quickest one-way flight (0 hours 50 minutes).

  • Does London Heathrow have car hire?

    Yes. Those touching down at London Heathrow can take advantage of the car hire services offered upon their arrival.

  • Are there hotels close to London Heathrow?

    Yes. London Heathrow has hotels nearby for those requiring accommodations. Aerotel London Heathrow Airport Terminal 2-3 is the closest property to London Heathrow (0.0 mi away from London Heathrow).

See more FAQs

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