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£85+ 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 21/7. Fares are subject to change and may not be available on all flights or dates of travel.
— LHR
18 Jun — 25 Jun1
1 adult

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 13 June 2025.

One-way from

£85
21/7
  • 21/7
  • 1 total stop
  • 10h 40m total
  • London to Portsmouth
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Find flight deals to Portsmouth

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 13 June 2025.

Sat 27/907:05LTN - SOU
1 stop7h 45measyJet
Wed 8/1009:00SOU - LTN
1 stop10h 20measyJet
Deal found 11/6£169
Sat 27/907:50STN - SOU
1 stop7h 00measyJet
Wed 8/1009:00SOU - STN
1 stop8h 50measyJet
Deal found 11/6£174
Sat 26/716:30STN - SOU
1 stop16h 05mMultiple Airlines
Sat 2/808:05SOU - STN
1 stop26h 05mMultiple Airlines
Deal found 11/6£182
Sat 27/907:30LGW - SOU
1 stop7h 20measyJet
Wed 8/1009:00SOU - LGW
1 stop7h 20measyJet
Deal found 11/6£183
Sat 26/708:40LTN - SOU
1 stop23h 55mMultiple Airlines
Sat 2/808:05SOU - LTN
1 stop24h 05mMultiple Airlines
Deal found 11/6£191
Sun 6/707:40LGW - SOU
1 stop6h 40mMultiple Airlines
Thu 10/716:35SOU - LGW
1 stop5h 00mMultiple Airlines
Deal found 11/6£197
Sun 6/717:30SEN - SOU
1 stop26h 25measyJet
Thu 10/720:50SOU - SEN
1 stop16h 15measyJet
Deal found 11/6£249
Sat 27/911:45LHR - SOU
1 stop5h 45mKLM
Wed 8/1009:20SOU - LHR
1 stop10h 05mKLM
Deal found 11/6£255
Sun 27/720:10LCY - SOU
1 stop12h 35mKLM
Sun 3/809:20SOU - LCY
1 stop9h 15mKLM
Deal found 12/6£258
Thu 10/714:20LHR - SOU
1 stop5h 10mMultiple Airlines
Sat 19/708:25SOU - LHR
1 stop10h 25mMultiple Airlines
Deal found 11/6£298
Mon 29/1212:30LHR - SOU
1 stop3h 45mBritish Airways
Mon 12/111:40SOU - LHR
1 stop4h 20mBritish Airways
Deal found 12/6£319
Thu 24/713:55SEN - SOU
1 stop6h 40mMultiple Airlines
Wed 30/709:20SOU - SEN
1 stop10h 20mMultiple Airlines
Deal found 12/6£331

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 13 June 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

Sat 27/9

07:05-14:50

1 stop7h 45m

Southampton Eastleigh

Wed 8/10

09:00-19:20

1 stop10h 20m

£169

LondonSouthampton

STN - SOU

STNSOU

London Stansted

Sat 27/9

07:50-14:50

1 stop7h 00m

Southampton Eastleigh

Wed 8/10

09:00-17:50

1 stop8h 50m

£174

LondonSouthampton

STN - SOU

STNSOU

London Stansted

Sat 26/7

16:30-08:35

1 stop16h 05m

Southampton Eastleigh

Sat 2/8

08:05-10:10

1 stop26h 05m

£182

LondonSouthampton

LGW - SOU

LGWSOU

London Gatwick

Sat 27/9

07:30-14:50

1 stop7h 20m

Southampton Eastleigh

Wed 8/10

09:00-16:20

1 stop7h 20m

£183

LondonSouthampton

LTN - SOU

LTNSOU

London Luton

Sat 26/7

08:40-08:35

1 stop23h 55m

Southampton Eastleigh

Sat 2/8

08:05-08:10

1 stop24h 05m

£191

LondonSouthampton

LGW - SOU

LGWSOU

London Gatwick

Sun 6/7

07:40-14:20

1 stop6h 40m

Southampton Eastleigh

Thu 10/7

16:35-21:35

1 stop5h 00m

£197

LondonSouthampton

SEN - SOU

SENSOU

London Southend

Sun 6/7

17:30-19:55

1 stop26h 25m

Southampton Eastleigh

Thu 10/7

20:50-13:05

1 stop16h 15m

£249

LondonSouthampton

LHR - SOU

LHRSOU

London Heathrow

Sat 27/9

11:45-17:30

1 stop5h 45m

Southampton Eastleigh

Wed 8/10

09:20-19:25

1 stop10h 05m

£255

LondonSouthampton

LCY - SOU

LCYSOU

London City

Sun 27/7

20:10-08:45

1 stop12h 35m

Southampton Eastleigh

Sun 3/8

09:20-18:35

1 stop9h 15m

£258

LondonSouthampton

LHR - SOU

LHRSOU

London Heathrow

Thu 10/7

14:20-19:30

1 stop5h 10m

Southampton Eastleigh

Sat 19/7

08:25-18:50

1 stop10h 25m

£298

Flights are sorted by cheapest return flights first.

Deals found on 12/6

Showing 1-10 of 29 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 6 hours 55 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).

Reviews of airlines servicing Portsmouth

Get insights into the airlines that provide service to Portsmouth. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Portsmouth. Reviews last updated 13 June 2025.
Peruse reviews from past customers who have flown KLM, Aer Lingus and easyJet to Portsmouth to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
KLM
7.8
Good
1,358 reviews
Check prices

Overall

7.8

Food

7.2

Boarding

7.8

Comfort

7.7

Entertainment

7.1

Crew

8.4

Reviews

1 / 20
8.0
Excellent

Allan,Jun 2025

YYZ - AMS

I always enjoy flying KLM. Service is attentive, friendly and professional. The seat, when fully reclined is a little hard; some kind of mattress or topper would be helpful here. The dinner was really not very good …. “Meatless meatballs” tasted quite peculiar. Breakfast which consisted of an egg white omelette in flour tortilla was also rather tasteless.
KLM
7.8
Good
1,358 reviews
KLM
7.8
Good
1,358 reviews
Check prices

Overall

7.8

Food

7.2

Boarding

7.8

Comfort

7.7

Entertainment

7.1

Crew

8.4

Reviews

1 / 20
8.0
Excellent

Allan,Jun 2025

YYZ - AMS

I always enjoy flying KLM. Service is attentive, friendly and professional. The seat, when fully reclined is a little hard; some kind of mattress or topper would be helpful here. The dinner was really not very good …. “Meatless meatballs” tasted quite peculiar. Breakfast which consisted of an egg white omelette in flour tortilla was also rather tasteless.
Aer Lingus
7.1
Good
1,118 reviews
KLM
7.8
Good
1,358 reviews
Check prices

Overall

7.8

Food

7.2

Boarding

7.8

Comfort

7.7

Entertainment

7.1

Crew

8.4

Reviews

1 / 20
8.0
Excellent

Allan,Jun 2025

YYZ - AMS

I always enjoy flying KLM. Service is attentive, friendly and professional. The seat, when fully reclined is a little hard; some kind of mattress or topper would be helpful here. The dinner was really not very good …. “Meatless meatballs” tasted quite peculiar. Breakfast which consisted of an egg white omelette in flour tortilla was also rather tasteless.
easyJet
6.9
Okay
1,812 reviews
KLM
7.8
Good
1,358 reviews
Check prices

Overall

7.8

Food

7.2

Boarding

7.8

Comfort

7.7

Entertainment

7.1

Crew

8.4

Reviews

1 / 20
8.0
Excellent

Allan,Jun 2025

YYZ - AMS

I always enjoy flying KLM. Service is attentive, friendly and professional. The seat, when fully reclined is a little hard; some kind of mattress or topper would be helpful here. The dinner was really not very good …. “Meatless meatballs” tasted quite peculiar. Breakfast which consisted of an egg white omelette in flour tortilla was also rather tasteless.
British Airways
6.6
Okay
7,011 reviews
KLM
7.8
Good
1,358 reviews
Check prices

Overall

7.8

Food

7.2

Boarding

7.8

Comfort

7.7

Entertainment

7.1

Crew

8.4

Reviews

1 / 20
8.0
Excellent

Allan,Jun 2025

YYZ - AMS

I always enjoy flying KLM. Service is attentive, friendly and professional. The seat, when fully reclined is a little hard; some kind of mattress or topper would be helpful here. The dinner was really not very good …. “Meatless meatballs” tasted quite peculiar. Breakfast which consisted of an egg white omelette in flour tortilla was also rather tasteless.

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 £107, however they can be found for as little as £38.

  • 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 (1 hour 0 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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