How long is the flight from Portsmouth to London?

There are many flights that can get you from Portsmouth to London in 5h. Fly via easyJet, Aer Lingus, or KLM to get the fastest option. The distance between Portsmouth and London is about 53 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

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

£94 is the cheapest one-way deal found within the past few days, from Aer Lingus. You may also be able to find cheap deals on Aurigny Air and British Airways, with prices starting from £169 and £172, respectively.

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.

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.

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).

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 City and Southampton Eastleigh - London Gatwick.

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.

£94+ Flights from Portsmouth to London

Cheap flight deals from Portsmouth to London

Round-trip from	£128
One-way from	£94

13/10-20/10
3 total stops
26h 10m total
Portsmouth to London

Search Deals

Aer Lingus
14/10
1 total stop
12h 00m 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 15 September 2025.

Mon 13/1020:30SOU - STN

2 stops15h 55mMultiple Airlines

Mon 20/1022:00STN - SOU

1 stop10h 15mMultiple Airlines

Deal found 15/9£128

Thu 16/1015:05SOU - LTN

1 stop7h 05measyJet

Wed 22/1019:20LTN - SOU

1 stop17h 25measyJet

Deal found 15/9£129

Sun 12/1013:10SOU - LGW

1 stop20h 35mMultiple Airlines

Sun 19/1019:40LGW - SOU

1 stop12h 00mMultiple Airlines

Deal found 14/9£143

Thu 16/1008:55SOU - LGW

1 stop13h 50mMultiple Airlines

Wed 22/1021:50LGW - SOU

1 stop14h 55mMultiple Airlines

Deal found 15/9£144

Wed 29/1016:05SOU - STN

1 stop5h 15mMultiple Airlines

Wed 5/1108:30STN - SOU

1 stop7h 05mMultiple Airlines

Deal found 14/9£147

Wed 29/1020:10SOU - LTN

1 stop12h 25mMultiple Airlines

Wed 5/1106:50LTN - SOU

1 stop5h 05mMultiple Airlines

Deal found 14/9£149

Thu 30/1020:10SOU - STN

1 stop11h 40mMultiple Airlines

Thu 6/1108:30STN - SOU

1 stop7h 05mMultiple Airlines

Deal found 15/9£150

Sat 11/1015:20SOU - STN

1 stop5h 35mMultiple Airlines

Sun 12/1006:45STN - SOU

1 stop4h 40mMultiple Airlines

Deal found 12/9£153

Sat 11/1008:55SOU - LGW

1 stop6h 55mMultiple Airlines

Sat 18/1020:20LGW - SOU

2 stops35h 20mMultiple Airlines

Deal found 13/9£154

Thu 30/1009:30SOU - LTN

1 stop7h 35mMultiple Airlines

Thu 6/1114:10LTN - SOU

1 stop5h 30mMultiple Airlines

Deal found 15/9£156

Sat 11/1018:55SOU - LGW

1 stop14h 15mMultiple Airlines

Sun 12/1019:40LGW - SOU

1 stop11h 55mMultiple Airlines

Deal found 12/9£160

Mon 13/1008:05SOU - LHR

1 stop6h 10mMultiple Airlines

Mon 20/1020:10LHR - SOU

1 stop12h 05mMultiple Airlines

Deal found 15/9£162

Best flights from Portsmouth to London
Discover carefully curated flight deals from Portsmouth to London that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 15 September 2025.

Thu 16/1015:05SOU - LTN

1 stop7h 05measyJet

Wed 22/1019:20LTN - SOU

1 stop17h 25measyJet

Deal found 15/9£129

Sun 12/1013:10SOU - LGW

1 stop20h 35mMultiple Airlines

Sun 19/1019:40LGW - SOU

1 stop12h 00mMultiple Airlines

Deal found 14/9£143

Wed 29/1016:05SOU - LHR

1 stop5h 00mAer Lingus

Wed 5/1108:50LHR - SOU

1 stop6h 45mAer Lingus

Deal found 14/9£195

Sat 11/1009:20SOU - LHR

1 stop11h 35mKLM

Sun 12/1020:55LHR - SOU

1 stop11h 50mKLM

Deal found 12/9£230

Thu 16/1008:55SOU - LGW

1 stop13h 50mMultiple Airlines

Wed 22/1021:50LGW - SOU

1 stop14h 55mMultiple Airlines

Deal found 15/9£144

Mon 20/1013:10SOU - LHR

1 stop3h 35mBritish Airways

Fri 14/1106:05LHR - SOU

1 stop5h 45mBritish Airways

Deal found 13/9£316

Mon 13/1020:30SOU - STN

1 stop19h 15mMultiple Airlines

Mon 20/1022:00STN - SOU

1 stop10h 15mMultiple Airlines

Deal found 15/9£145

Wed 29/1016:05SOU - STN

1 stop5h 15mMultiple Airlines

Wed 5/1108:30STN - SOU

1 stop7h 05mMultiple Airlines

Deal found 14/9£147

Mon 29/920:30SOU - LTN

1 stop12h 15measyJet

Fri 3/1022:15LTN - SOU

1 stop16h 35measyJet

Deal found 14/9£184

Wed 29/1020:10SOU - LTN

1 stop12h 25mMultiple Airlines

Wed 5/1106:50LTN - SOU

1 stop5h 05mMultiple Airlines

Deal found 14/9£149

Mon 29/919:50SOU - LCY

1 stop12h 10mAurigny Air

Fri 3/1008:30LCY - SOU

1 stop10h 35mAurigny Air

Deal found 14/9£430

Thu 30/1020:10SOU - STN

1 stop11h 40mMultiple Airlines

Thu 6/1108:30STN - SOU

1 stop7h 05mMultiple Airlines

Deal found 15/9£150

Last-minute flights from Portsmouth to London
Discover last-minute flight deals from Portsmouth to London. Data last updated 15 September 2025 and is based on user searches.

Sat 11/1015:20SOU - STN

1 stop5h 35mMultiple Airlines

Sun 12/1006:45STN - SOU

1 stop4h 40mMultiple Airlines

Deal found 12/9£153

Sat 11/1008:55SOU - LGW

1 stop6h 55mMultiple Airlines

Sat 18/1020:20LGW - SOU

2 stops35h 20mMultiple Airlines

Deal found 13/9£154

Sat 11/1018:55SOU - LGW

1 stop14h 15mMultiple Airlines

Sun 12/1019:40LGW - SOU

1 stop11h 55mMultiple Airlines

Deal found 12/9£160

Sun 12/1013:10SOU - LGW

1 stop20h 35mMultiple Airlines

Sun 19/1019:40LGW - SOU

1 stop12h 00mMultiple Airlines

Deal found 14/9£143

Mon 13/1020:30SOU - STN

2 stops15h 55mMultiple Airlines

Mon 20/1022:00STN - SOU

1 stop10h 15mMultiple Airlines

Deal found 15/9£128

Mon 13/1008:05SOU - LHR

1 stop6h 10mMultiple Airlines

Mon 20/1020:10LHR - SOU

1 stop12h 05mMultiple Airlines

Deal found 15/9£162

Thu 16/1015:05SOU - LTN

1 stop7h 05measyJet

Wed 22/1019:20LTN - SOU

1 stop17h 25measyJet

Deal found 15/9£129

Thu 16/1008:55SOU - LGW

1 stop13h 50mMultiple Airlines

Wed 22/1021:50LGW - SOU

1 stop14h 55mMultiple Airlines

Deal found 15/9£144

Wed 29/1016:05SOU - STN

1 stop5h 15mMultiple Airlines

Wed 5/1108:30STN - SOU

1 stop7h 05mMultiple Airlines

Deal found 14/9£147

Wed 29/1020:10SOU - LTN

1 stop12h 25mMultiple Airlines

Wed 5/1106:50LTN - SOU

1 stop5h 05mMultiple Airlines

Deal found 14/9£149

Thu 30/1020:10SOU - STN

1 stop11h 40mMultiple Airlines

Thu 6/1108:30STN - SOU

1 stop7h 05mMultiple Airlines

Deal found 15/9£150

Thu 30/1009:30SOU - LTN

1 stop7h 35mMultiple Airlines

Thu 6/1114:10LTN - SOU

1 stop5h 30mMultiple Airlines

Deal found 15/9£156

One-way flights from Portsmouth to London
Search for one-way flight options from Portsmouth to London. Find affordable one-way fares based on user searches. Data last updated 15 September 2025.

Tue 14/1020:00SOU - LHR

1 stop12h 00mAer Lingus

Deal found 14/9£94

Thu 16/1020:00SOU - LHR

1 stop13h 05mAer Lingus

Deal found 14/9£128

Tue 14/1020:00SOU - LHR

2 stops14h 45mMultiple Airlines

Deal found 14/9£136

Thu 16/1017:35SOU - LHR

2 stops14h 25mMultiple Airlines

Deal found 14/9£156

Thu 30/1008:00SOU - LGW

1 stop7h 50mAurigny Air

Deal found 15/9£169

Thu 30/1014:45SOU - LHR

1 stop5h 45mBritish Airways

Deal found 15/9£172

Mon 13/1008:55SOU - LHR

1 stop4h 45mBritish Airways

Deal found 13/9£195

Mon 13/1016:50SOU - LCY

1 stop3h 55mBritish Airways

Deal found 13/9£257

Fly from

Fly to

Route

Depart

Return

Price

SouthamptonLondon

SOU - LTN

SOULTN

Southampton Eastleigh

Thu 16/10

15:05-22:10

1 stop7h 05m

London Luton

Wed 22/10

19:20-12:45

1 stop17h 25m

£129

SouthamptonLondon

SOU - LGW

SOULGW

Southampton Eastleigh

Sun 12/10

13:10-09:45

1 stop20h 35m

London Gatwick

Sun 19/10

19:40-07:40

1 stop12h 00m

£143

SouthamptonLondon

SOU - LGW

SOULGW

Southampton Eastleigh

Thu 16/10

08:55-22:45

1 stop13h 50m

London Gatwick

Wed 22/10

21:50-12:45

1 stop14h 55m

£144

SouthamptonLondon

SOU - STN

SOUSTN

Southampton Eastleigh

Mon 13/10

20:30-15:45

1 stop19h 15m

London Stansted

Mon 20/10

22:00-08:15

1 stop10h 15m

£145

SouthamptonLondon

SOU - STN

SOUSTN

Southampton Eastleigh

Wed 29/10

16:05-21:20

1 stop5h 15m

London Stansted

Wed 5/11

08:30-15:35

1 stop7h 05m

£147

SouthamptonLondon

SOU - LTN

SOULTN

Southampton Eastleigh

Wed 29/10

20:10-08:35

1 stop12h 25m

London Luton

Wed 5/11

06:50-11:55

1 stop5h 05m

£149

SouthamptonLondon

SOU - STN

SOUSTN

Southampton Eastleigh

Thu 30/10

20:10-07:50

1 stop11h 40m

London Stansted

Thu 6/11

08:30-15:35

1 stop7h 05m

£150

SouthamptonLondon

SOU - STN

SOUSTN

Southampton Eastleigh

Sat 11/10

15:20-20:55

1 stop5h 35m

London Stansted

Sun 12/10

06:45-11:25

1 stop4h 40m

£153

SouthamptonLondon

SOU - LGW

SOULGW

Southampton Eastleigh

Sat 11/10

08:55-15:50

1 stop6h 55m

London Gatwick

Sat 18/10

20:20-07:40

2 stops35h 20m

£154

SouthamptonLondon

SOU - LTN

SOULTN

Southampton Eastleigh

Thu 30/10

09:30-17:05

1 stop7h 35m

London Luton

Thu 6/11

14:10-19:40

1 stop5h 30m

£156

Flights are sorted by cheapest return flights first.

Deals found on 14/9

Showing 1-10 of 38 results

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?

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?

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.

Related info for your journey

How long is the flight from Portsmouth to London?
There are many flights that can get you from Portsmouth to London in 5h. Fly via easyJet, Aer Lingus, or KLM to get the fastest option. The distance between Portsmouth and London is about 53 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.
What are the cheapest airlines to fly from Portsmouth to London one-way?
£94 is the cheapest one-way deal found within the past few days, from Aer Lingus. You may also be able to find cheap deals on Aurigny Air and British Airways, with prices starting from £169 and £172, respectively.
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 City and Southampton Eastleigh - London Gatwick.
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

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Croydon

Hounslow

Gatwick

Slough

Luton

Deal

Wembley

Ilford

Crawley

Hayes

Watford

Folkestone

Winchester

Chichester

Ipswich

Dartford

Eastbourne

Guildford

Bishop's Stortford

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When you search for this flight from Portsmouth to London, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from Portsmouth to London?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Portsmouth to London.

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Cheap flights from Portsmouth to London from £94

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 14/10. Fares are subject to change and may not be available on all flights or dates of travel.

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 15 September 2025.

Round-trip from

One-way from

Find flight deals from Portsmouth to London

Cheapest flights from Portsmouth to LondonExplore 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 15 September 2025.

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 15 September 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Portsmouth to London that are best for you.

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.

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 15 September 2025.

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 14 September 2025.

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.

How long is the flight from Portsmouth to London?

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

What are the most popular routes from Portsmouth to London?

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

How can I find direct flights from Portsmouth to London?

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

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

Travelling to a place near London?

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Alternative routes for Portsmouth to London

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How does Cheapflights help users find flights from Portsmouth to London?

Why should you use Cheapflights to find cheap flight tickets from Portsmouth to London?

Can Cheapflights find flights from Portsmouth to London with no change fees?

Can Cheapflights notify me if prices for flights from Portsmouth to London become cheaper?

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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 15 September 2025.