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£66+ Cheap flights to Portsmouth

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 7/2. Fares are subject to change and may not be available on all flights or dates of travel.
— LHR
25 Jan — 1 Feb1
1 adult
1 adult, Economy, 0 bags

Flights to Portsmouth in 2025

Enter your travel dates to find the best prices.

Best flights to Portsmouth
Discover carefully curated flight deals to Portsmouth that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 26 December 2025.

Mon 9/209:10LGW - SOU
1 stop23h 40measyJet
Mon 16/217:45SOU - LGW
1 stop4h 15measyJet
Deal found 25/12£124
Mon 9/209:10LGW - SOU
1 stop23h 40mMultiple Airlines
Mon 16/219:00SOU - LGW
1 stop15h 55mMultiple Airlines
Deal found 25/12£128
Mon 9/212:10LHR - SOU
1 stop7h 30mAer Lingus
Mon 16/216:05SOU - LHR
1 stop5h 00mAer Lingus
Deal found 25/12£231
Wed 21/121:40LGW - SOU
1 stop11h 05mMultiple Airlines
Wed 28/112:15SOU - LGW
1 stop10h 00mMultiple Airlines
Deal found 24/12£133
Mon 9/210:00LCY - SOU
1 stop7h 05mKLM
Mon 16/209:25SOU - LCY
1 stop10h 10mKLM
Deal found 25/12£291
Wed 21/106:30STN - SOU
1 stop5h 25mMultiple Airlines
Wed 28/112:25SOU - STN
1 stop5h 55mMultiple Airlines
Deal found 24/12£140
Sun 8/206:25LGW - SOU
1 stop11h 20measyJet
Sun 15/218:20SOU - LGW
1 stop14h 15measyJet
Deal found 25/12£155
Wed 4/210:20LHR - SOU
1 stop7h 10mBritish Airways
Wed 4/308:55SOU - LHR
1 stop4h 00mBritish Airways
Deal found 24/12£312
Thu 12/208:30LCY - SOU
1 stop7h 00mAurigny Air
Mon 16/208:00SOU - LCY
1 stop10h 50mAurigny Air
Deal found 23/12£336
Thu 8/121:40LGW - SOU
1 stop11h 05mMultiple Airlines
Sun 11/109:30SOU - LGW
1 stop5h 55mMultiple Airlines
Deal found 24/12£141
Sun 8/208:25LTN - SOU
1 stop9h 20measyJet
Sun 15/218:20SOU - LTN
1 stop13h 55measyJet
Deal found 25/12£158
Thu 8/114:10LTN - SOU
1 stop5h 30mMultiple Airlines
Sun 11/109:30SOU - LTN
1 stop6h 35mMultiple Airlines
Deal found 24/12£148
Thu 8/112:00STN - SOU
1 stop7h 40mMultiple Airlines
Sun 11/109:30SOU - STN
1 stop5h 20mMultiple Airlines
Deal found 24/12£149
Mon 9/209:00LTN - SOU
1 stop8h 15mMultiple Airlines
Mon 16/208:30SOU - LTN
1 stop13h 40mMultiple Airlines
Deal found 25/12£152
Thu 8/115:10LHR - SOU
1 stop4h 30mAer Lingus
Sun 11/109:30SOU - LHR
1 stop4h 55mAer Lingus
Deal found 24/12£246
Mon 9/215:15STN - SOU
1 stop4h 25mMultiple Airlines
Mon 16/208:30SOU - STN
1 stop11h 05mMultiple Airlines
Deal found 25/12£152
Sun 8/209:50LHR - SOU
1 stop5h 45mAer Lingus
Sun 15/220:10SOU - LHR
1 stop12h 55mAer Lingus
Deal found 25/12£252
Wed 21/107:45LCY - SOU
1 stop9h 20mKLM
Wed 28/109:25SOU - LCY
1 stop7h 10mKLM
Deal found 24/12£303
Fri 9/115:10LHR - SOU
1 stop4h 30mAer Lingus
Sun 11/109:30SOU - LHR
1 stop6h 05mAer Lingus
Deal found 24/12£254
Fri 9/113:05LTN - SOU
1 stop6h 35mMultiple Airlines
Sun 11/109:30SOU - LTN
1 stop6h 35mMultiple Airlines
Deal found 24/12£160
Thu 12/207:55LHR - SOU
1 stop9h 35mBritish Airways
Mon 16/212:00SOU - LHR
1 stop9h 05mBritish Airways
Deal found 23/12£312
Thu 18/619:15LHR - SOU
1 stop13h 20mKLM
Sun 28/617:20SOU - LHR
1 stop3h 35mKLM
Deal found 25/12£312
Fri 9/113:30STN - SOU
1 stop6h 10mMultiple Airlines
Sun 11/109:30SOU - STN
1 stop10h 35mMultiple Airlines
Deal found 24/12£162
Fri 9/119:20LCY - SOU
1 stop12h 10mAurigny Air
Sun 18/109:35SOU - LCY
1 stop5h 25mAurigny Air
Deal found 24/12£366
Sun 8/220:00STN - SOU
2 stops21h 15mMultiple Airlines
Sun 15/220:10SOU - STN
1 stop14h 55mMultiple Airlines
Deal found 25/12£162
Thu 18/620:15LCY - SOU
1 stop12h 20mKLM
Sun 28/609:15SOU - LCY
1 stop10h 30mKLM
Deal found 25/12£330
Fri 20/215:40LCY - SOU
1 stop5h 10mAurigny Air
Fri 27/208:00SOU - LCY
1 stop11h 35mAurigny Air
Deal found 24/12£374
Sun 8/216:25LTN - SOU
2 stops24h 50mMultiple Airlines
Sun 15/220:10SOU - LTN
1 stop12h 45mMultiple Airlines
Deal found 25/12£165
Sun 8/220:05LCY - SOU
1 stop12h 45mKLM
Sun 15/217:45SOU - LCY
1 stop15h 05mKLM
Deal found 25/12£343
Fri 9/114:55LGW - SOU
1 stop4h 45mMultiple Airlines
Sun 11/109:30SOU - LGW
1 stop7h 45mMultiple Airlines
Deal found 24/12£165

Find flight deals to Portsmouth

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 26 December 2025.

One-way from

£66
7/2
  • 7/2
  • 1 total stop
  • 6h 20m total
  • London to Portsmouth
Search Deals

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 26 December 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

LGW - SOU

LGWSOU

London Gatwick

Mon 9/2

09:10-08:50

1 stop23h 40m

Southampton Eastleigh

Mon 16/2

17:45-22:00

1 stop4h 15m

£124

LondonSouthampton

LGW - SOU

LGWSOU

London Gatwick

Mon 9/2

09:10-08:50

1 stop23h 40m

Southampton Eastleigh

Mon 16/2

19:00-10:55

1 stop15h 55m

£128

LondonSouthampton

LGW - SOU

LGWSOU

London Gatwick

Wed 21/1

21:40-08:45

1 stop11h 05m

Southampton Eastleigh

Wed 28/1

12:15-22:15

1 stop10h 00m

£133

LondonSouthampton

STN - SOU

STNSOU

London Stansted

Wed 21/1

06:30-11:55

1 stop5h 25m

Southampton Eastleigh

Wed 28/1

12:25-18:20

1 stop5h 55m

£140

LondonSouthampton

LGW - SOU

LGWSOU

London Gatwick

Thu 8/1

21:40-08:45

1 stop11h 05m

Southampton Eastleigh

Sun 11/1

09:30-15:25

1 stop5h 55m

£141

LondonSouthampton

LTN - SOU

LTNSOU

London Luton

Thu 8/1

14:10-19:40

1 stop5h 30m

Southampton Eastleigh

Sun 11/1

09:30-16:05

1 stop6h 35m

£148

LondonSouthampton

STN - SOU

STNSOU

London Stansted

Thu 8/1

12:00-19:40

1 stop7h 40m

Southampton Eastleigh

Sun 11/1

09:30-14:50

1 stop5h 20m

£149

LondonSouthampton

LTN - SOU

LTNSOU

London Luton

Mon 9/2

09:00-17:15

1 stop8h 15m

Southampton Eastleigh

Mon 16/2

08:30-22:10

1 stop13h 40m

£152

LondonSouthampton

STN - SOU

STNSOU

London Stansted

Mon 9/2

15:15-19:40

1 stop4h 25m

Southampton Eastleigh

Mon 16/2

08:30-19:35

1 stop11h 05m

£152

LondonSouthampton

LGW - SOU

LGWSOU

London Gatwick

Sun 8/2

06:25-17:45

1 stop11h 20m

Southampton Eastleigh

Sun 15/2

18:20-08:35

1 stop14h 15m

£155

Flights are sorted by cheapest return flights first.

Deals found on 24/12

Showing 1-10 of 49 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 5 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 £162, however they can be found for as little as £30.

  • 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 is the closest property to London Heathrow (0.0 mi away from London Heathrow).

See more FAQs

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Users can book flights with no change fees policies with our dedicated filters. Book flights to Portsmouth flexibly with Cheapflights today.

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