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Cheap flights from Portsmouth to London from £127

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 13/6. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — LON
5 May — 12 May1
1 adult

Cheap flight deals from Portsmouth to London

Keep the following information in mind while searching for Portsmouth to London flight deals. Data was last updated 30 April 2025.

Round-trip from

£127
13/6-15/6
  • 13/6-15/6
  • 2 total stops
  • 15h 25m total
  • Portsmouth to London
Search Deals

Find flight deals from Portsmouth to London

Cheapest flights from Portsmouth to London
Explore the most affordable flight options available from Portsmouth to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 30 April 2025.

Fri 13/612:15SOU - STN
1 stop10h 45mMultiple Airlines
Sun 15/606:45STN - SOU
1 stop4h 40mMultiple Airlines
Deal found 29/4£127
Fri 13/612:15SOU - LTN
1 stop10h 55measyJet
Sun 15/616:40LTN - SOU
1 stop27h 15measyJet
Deal found 29/4£153
Fri 13/612:15SOU - LGW
1 stop10h 15measyJet
Sun 15/620:10LGW - SOU
1 stop23h 45measyJet
Deal found 29/4£162
Sat 7/608:25SOU - LGW
2 stops11h 10mMultiple Airlines
Sun 8/607:40LGW - SOU
1 stop23h 55mMultiple Airlines
Deal found 30/4£169
Sat 7/608:25SOU - LTN
2 stops25h 05mMultiple Airlines
Sun 8/616:40LTN - SOU
1 stop27h 15mMultiple Airlines
Deal found 29/4£178
Fri 13/612:15SOU - STN
1 stop7h 10measyJet
Fri 20/611:55STN - SOU
1 stop7h 40measyJet
Deal found 29/4£201
Tue 27/512:25SOU - LHR
1 stop9h 20mMultiple Airlines
Tue 3/606:15LHR - SOU
1 stop5h 30mMultiple Airlines
Deal found 29/4£225
Sat 7/609:20SOU - LHR
1 stop11h 35mKLM
Sun 8/620:55LHR - SOU
1 stop11h 50mKLM
Deal found 29/4£227
Thu 19/609:20SOU - LCY
1 stop9h 10mKLM
Mon 23/607:45LCY - SOU
1 stop10h 05mKLM
Deal found 29/4£304
Sun 4/509:10SOU - LHR
1 stop4h 45mAer Lingus
Sun 11/522:00LHR - SOU
1 stop11h 10mAer Lingus
Deal found 29/4£346
Fri 13/608:55SOU - LCY
1 stop7h 05mMultiple Airlines
Sun 15/619:55LCY - SOU
1 stop12h 30mMultiple Airlines
Deal found 29/4£367
Wed 2/715:35SOU - LGW
1 stop3h 35mAurigny Air
Sun 10/808:35LGW - SOU
1 stop8h 00mAurigny Air
Deal found 29/4£386

Cheapflights Fare Finder

Customise your flight search to find flights from Portsmouth to London 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 30 April 2025.
Use the filters below to find and compare flights from Portsmouth to London that are best for you.

Fly from

Portsmouth

Fly to

London

Route

Depart

Return

Price

SouthamptonLondon

SOU - STN

SOUSTN

Southampton Eastleigh

Fri 13/6

12:15-23:00

1 stop10h 45m

London Stansted

Sun 15/6

06:45-11:25

1 stop4h 40m

£127

SouthamptonLondon

SOU - LTN

SOULTN

Southampton Eastleigh

Fri 13/6

12:15-23:10

1 stop10h 55m

London Luton

Sun 15/6

16:40-19:55

1 stop27h 15m

£153

SouthamptonLondon

SOU - LGW

SOULGW

Southampton Eastleigh

Fri 13/6

12:15-22:30

1 stop10h 15m

London Gatwick

Sun 15/6

20:10-19:55

1 stop23h 45m

£162

SouthamptonLondon

SOU - LGW

SOULGW

Southampton Eastleigh

Sat 7/6

08:25-19:35

2 stops11h 10m

London Gatwick

Sun 8/6

07:40-07:35

1 stop23h 55m

£169

SouthamptonLondon

SOU - LTN

SOULTN

Southampton Eastleigh

Sat 7/6

08:25-09:30

2 stops25h 05m

London Luton

Sun 8/6

16:40-19:55

1 stop27h 15m

£178

SouthamptonLondon

SOU - STN

SOUSTN

Southampton Eastleigh

Fri 13/6

12:15-19:25

1 stop7h 10m

London Stansted

Fri 20/6

11:55-19:35

1 stop7h 40m

£201

SouthamptonLondon

SOU - LHR

SOULHR

Southampton Eastleigh

Tue 27/5

12:25-21:45

1 stop9h 20m

London Heathrow

Tue 3/6

06:15-11:45

1 stop5h 30m

£225

SouthamptonLondon

SOU - LHR

SOULHR

Southampton Eastleigh

Sat 7/6

09:20-20:55

1 stop11h 35m

London Heathrow

Sun 8/6

20:55-08:45

1 stop11h 50m

£227

SouthamptonLondon

SOU - LCY

SOULCY

Southampton Eastleigh

Thu 19/6

09:20-18:30

1 stop9h 10m

London City

Mon 23/6

07:45-17:50

1 stop10h 05m

£304

SouthamptonLondon

SOU - LCY

SOULCY

Southampton Eastleigh

Fri 13/6

08:55-16:00

1 stop7h 05m

London City

Sun 15/6

19:55-08:25

1 stop12h 30m

£367

Flights are sorted by cheapest return flights first.

Deals found on 29/4

Showing 1-10 of 17 results
1
2

Best time to book a flight from Portsmouth to London

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

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

Find hourly flight availability from Portsmouth to London. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 30 April 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Portsmouth to London as you normally would.

What is the cheapest day to fly from Portsmouth to London?

Use this chart to determine the cheapest time to fly return from Portsmouth to London. Price data was last updated on 30 March 2025.

Travellers seeking maximum savings on their Portsmouth to London flight should consider departing on Saturday evenings when fares are most often at their lowest. Saturday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

Rainfall in London by month

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

In terms of precipitation, rainfall in London ranges from 40.0 - 70.0 inches per month. January is typically the wettest month, when rainfall can reach 70.0 mm. July is typically the driest time to visit London when rainfall is around 40.0 mm.

Temperature in London by month

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

If weather is an important factor for your trip to London, 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 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 4.0 C).

Reviews of airlines servicing London

Get insights into the airlines that provide service to London. 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 London. Reviews last updated 30 April 2025.
To help decide which airline to fly from Portsmouth to London, see what other customers have to say about KLM, easyJet and British Airways. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
KLM
7.8
Good
1,334 reviews
Check prices

Crew

8.4

Overall

7.8

Comfort

7.7

Entertainment

7.1

Food

7.2

Boarding

7.8

Reviews

1 / 20
8.0
Excellent

Anonymous,Mar 2025

LBA - AMS

Overall, the flight from Leeds Bradford to Amsterdam was at expected. The crew were efficient at boarding and professional on board. The only issue was extremely slow check in at Leeds Bradford which was very frustrating.
KLM
7.8
Good
1,334 reviews
KLM
7.8
Good
1,334 reviews
Check prices

Crew

8.4

Overall

7.8

Comfort

7.7

Entertainment

7.1

Food

7.2

Boarding

7.8

Reviews

1 / 20
8.0
Excellent

Anonymous,Mar 2025

LBA - AMS

Overall, the flight from Leeds Bradford to Amsterdam was at expected. The crew were efficient at boarding and professional on board. The only issue was extremely slow check in at Leeds Bradford which was very frustrating.
easyJet
6.9
Okay
1,799 reviews
KLM
7.8
Good
1,334 reviews
Check prices

Crew

8.4

Overall

7.8

Comfort

7.7

Entertainment

7.1

Food

7.2

Boarding

7.8

Reviews

1 / 20
8.0
Excellent

Anonymous,Mar 2025

LBA - AMS

Overall, the flight from Leeds Bradford to Amsterdam was at expected. The crew were efficient at boarding and professional on board. The only issue was extremely slow check in at Leeds Bradford which was very frustrating.
British Airways
6.6
Okay
6,842 reviews
KLM
7.8
Good
1,334 reviews
Check prices

Crew

8.4

Overall

7.8

Comfort

7.7

Entertainment

7.1

Food

7.2

Boarding

7.8

Reviews

1 / 20
8.0
Excellent

Anonymous,Mar 2025

LBA - AMS

Overall, the flight from Leeds Bradford to Amsterdam was at expected. The crew were efficient at boarding and professional on board. The only issue was extremely slow check in at Leeds Bradford which was very frustrating.

Related info for your journey

Find useful and relevant information for your journey from Portsmouth to London. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

    The most popular flight routes from Portsmouth to London are Southampton Eastleigh - London Heathrow, Southampton Eastleigh - London Gatwick and Southampton Eastleigh - London City.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Portsmouth to London 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 Portsmouth to London?

    Currently, January is the cheapest month in which you can book a flight from Portsmouth to London (average of £112). Flying from Portsmouth to London in August is currently the most expensive (average of £164). 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

Travelling to a place near Portsmouth?

Book flights to Portsmouth if you plan to visit one of these locations
Deal
Hounslow
Milton Keynes
Gatwick
Luton
Slough
Croydon
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Ilford
Hayes
Southend-on-Sea
Crawley
Wembley
Ipswich
Maidstone
Winchester
Folkestone
Dartford
Watford
Chichester

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