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Cheap flights from London to Portsmouth from £58

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 12/2. Fares are subject to change and may not be available on all flights or dates of travel.
LON — LHR
22 Jan — 29 Jan1
1 adult

Cheap flight deals from London to Portsmouth

Discover tips and strategies to find the most affordable flight options for your journey from London (LON) to Portsmouth (P0R). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 17 January 2025.

Round-trip from

£124

One-way from

£58
easyJet
  • easyJet
  • 10/2-12/2
  • 2 total stops
  • 10h 35m total
  • London to Portsmouth
Search Deals
easyJet
  • easyJet
  • 12/2
  • 1 total stop
  • 9h 15m total
  • London to Portsmouth
Search Deals

Find flight deals from London to Portsmouth

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 17 January 2025.

Mon 10/207:00LTN - SOU
1 stop4h 55measyJet
Wed 12/216:10SOU - LTN
1 stop5h 40measyJet
Deal found 17/1£124
Mon 10/206:30LGW - SOU
1 stop5h 25measyJet
Wed 12/216:10SOU - LGW
1 stop3h 40measyJet
Deal found 16/1£128
Mon 10/207:50STN - SOU
1 stop4h 05measyJet
Wed 12/216:10SOU - STN
1 stop3h 30measyJet
Deal found 16/1£129
Sat 8/207:15LTN - SOU
1 stop7h 25mMultiple Airlines
Tue 11/208:55SOU - LTN
1 stop8h 45mMultiple Airlines
Deal found 16/1£142
Mon 10/214:50LGW - SOU
1 stop4h 50mMultiple Airlines
Wed 12/216:10SOU - LGW
1 stop3h 40mMultiple Airlines
Deal found 16/1£149
Wed 12/212:45SEN - SOU
1 stop23h 10measyJet
Tue 25/212:00SOU - SEN
1 stop24h 05measyJet
Deal found 15/1£155
Fri 14/211:10STN - SOU
1 stop8h 30mMultiple Airlines
Fri 21/220:10SOU - STN
1 stop11h 40mMultiple Airlines
Deal found 17/1£156
Mon 10/209:50LHR - SOU
1 stop5h 45mAer Lingus
Wed 12/209:30SOU - LHR
1 stop6h 05mAer Lingus
Deal found 17/1£201
Thu 20/220:25LHR - SOU
1 stop12h 00mKLM
Mon 24/217:20SOU - LHR
1 stop3h 30mKLM
Deal found 15/1£226
Wed 5/212:10LHR - SOU
1 stop6h 45mMultiple Airlines
Thu 27/219:25SOU - LHR
1 stop12h 55mMultiple Airlines
Deal found 16/1£236
Tue 1/419:40LGW - SOU
1 stop11h 50mAurigny Air
Sat 5/418:50SOU - LGW
1 stop13h 05mAurigny Air
Deal found 17/1£268
Fri 14/206:50LCY - SOU
1 stop8h 45mMultiple Airlines
Fri 21/216:15SOU - LCY
1 stop5h 25mMultiple Airlines
Deal found 17/1£278

Find flights from London to Portsmouth within your budget

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 17 January 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

LondonSouthampton

LTN - SOU

LTNSOU

London Luton

Mon 10/2

07:00-11:55

1 stop4h 55m

Southampton Eastleigh

Wed 12/2

16:10-21:50

1 stop5h 40m

£124

LondonSouthampton

LGW - SOU

LGWSOU

London Gatwick

Mon 10/2

06:30-11:55

1 stop5h 25m

Southampton Eastleigh

Wed 12/2

16:10-19:50

1 stop3h 40m

£128

LondonSouthampton

STN - SOU

STNSOU

London Stansted

Mon 10/2

07:50-11:55

1 stop4h 05m

Southampton Eastleigh

Wed 12/2

16:10-19:40

1 stop3h 30m

£129

LondonSouthampton

LTN - SOU

LTNSOU

London Luton

Sat 8/2

07:15-14:40

1 stop7h 25m

Southampton Eastleigh

Tue 11/2

08:55-17:40

1 stop8h 45m

£142

LondonSouthampton

LGW - SOU

LGWSOU

London Gatwick

Mon 10/2

14:50-19:40

1 stop4h 50m

Southampton Eastleigh

Wed 12/2

16:10-19:50

1 stop3h 40m

£149

LondonSouthampton

SEN - SOU

SENSOU

London Southend

Wed 12/2

12:45-11:55

1 stop23h 10m

Southampton Eastleigh

Tue 25/2

12:00-12:05

1 stop24h 05m

£155

LondonSouthampton

STN - SOU

STNSOU

London Stansted

Fri 14/2

11:10-19:40

1 stop8h 30m

Southampton Eastleigh

Fri 21/2

20:10-07:50

1 stop11h 40m

£156

LondonSouthampton

LHR - SOU

LHRSOU

London Heathrow

Mon 10/2

09:50-15:35

1 stop5h 45m

Southampton Eastleigh

Wed 12/2

09:30-15:35

1 stop6h 05m

£201

LondonSouthampton

LHR - SOU

LHRSOU

London Heathrow

Thu 20/2

20:25-08:25

1 stop12h 00m

Southampton Eastleigh

Mon 24/2

17:20-20:50

1 stop3h 30m

£226

LondonSouthampton

LHR - SOU

LHRSOU

London Heathrow

Wed 5/2

12:10-18:55

1 stop6h 45m

Southampton Eastleigh

Thu 27/2

19:25-08:20

1 stop12h 55m

£236

Flights are sorted by cheapest return flights first.

Deals found on 16/1

Showing 1-10 of 27 results
1
2
3

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.

Travel insights for flights from London to Portsmouth

Get recent, data-driven insights about flights from London to Portsmouth including ideal travel times, pricing trends, and more.

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 17 January 2025.

When flying from London to Portsmouth, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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 17 January 2025.
See what other customers who have flown with KLM, easyJet and Aer Lingus from London to Portsmouth have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
KLM
7.8
Good
1,339 reviews
Check prices

Overall

7.8

Boarding

7.8

Entertainment

7.2

Food

7.3

Crew

8.4

Comfort

7.7

Reviews

1 / 10

I could not select a seat prior to check in as systems not integrated. Different PNRs should be on reservation which would make process easier.

KLM
7.8
Good
1,339 reviews
KLM
7.8
Good
1,339 reviews
Check prices

Overall

7.8

Boarding

7.8

Entertainment

7.2

Food

7.3

Crew

8.4

Comfort

7.7

Reviews

1 / 10

I could not select a seat prior to check in as systems not integrated. Different PNRs should be on reservation which would make process easier.

Aer Lingus
7.1
Good
1,077 reviews
KLM
7.8
Good
1,339 reviews
Check prices

Overall

7.8

Boarding

7.8

Entertainment

7.2

Food

7.3

Crew

8.4

Comfort

7.7

Reviews

1 / 10

I could not select a seat prior to check in as systems not integrated. Different PNRs should be on reservation which would make process easier.

easyJet
6.9
Okay
1,858 reviews
KLM
7.8
Good
1,339 reviews
Check prices

Overall

7.8

Boarding

7.8

Entertainment

7.2

Food

7.3

Crew

8.4

Comfort

7.7

Reviews

1 / 10

I could not select a seat prior to check in as systems not integrated. Different PNRs should be on reservation which would make process easier.

British Airways
6.6
Okay
6,824 reviews
KLM
7.8
Good
1,339 reviews
Check prices

Overall

7.8

Boarding

7.8

Entertainment

7.2

Food

7.3

Crew

8.4

Comfort

7.7

Reviews

1 / 10

I could not select a seat prior to check in as systems not integrated. Different PNRs should be on reservation which would make process easier.

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.

  • What are the cheapest airlines to fly from London to Portsmouth one-way?

    The cheapet airlines for a one-way flight from London to Portsmouth are easyJet (£58), Aer Lingus (£104), and British Airways (£208).

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

    While some choose either London City - Southampton Eastleigh or London Gatwick - Southampton Eastleigh, London Heathrow - 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.

  • What is the cheapest month to book a flight from London to Portsmouth?

    Currently, January is the cheapest month in which you can book a flight from London to Portsmouth (average of £112). Flying from London to Portsmouth in August is currently the most expensive (average of £161). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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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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Fly with Cheapflights

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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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