Cheap flights from London to Portsmouth

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The best prices from London to Portsmouth are usually found in February or June, booked 48 days in advance, depart on a Wednesday or Thursday and return on a Saturday

How to find the cheapest flight from
London (LON) to Portsmouth (SOU)

LON - SOU
Price
£69 - £284
SOU
Temperature
9 - 22 °C
SOU
Rainfall
0 - 11 mm
Popular in August High demand for flights, 57% potential price rise
Cheapest in February Best time to find cheap flights, 44% potential price drop
Round-trip from £69 From London to Portsmouth
One-way from £36 One-way flight from London to Portsmouth
Flight route prices based on searches on Cheapflights within the last 3 days, monthly prices based on aggregated historical data.
What is the cheapest day to fly return from London to Portsmouth?

Users have found that flying from London to Portsmouth on a Friday typically leans towards higher prices. However, this doesn’t mean you still can’t find a deal. Flexibility with other aspects of your flight can still land a great price for your trip.

Cheap flights from London to Portsmouth in July, August 2020

The best prices found for LON to SOU flights in July, August
6 Jul - 13 Jul
£455pp
LTN
London Luton
Multiple airlines
   
2 STOPS
SOU
Southampton Eastleigh
SOU
Southampton Eastleigh
Multiple Airlines
 
1 STOP
LTN
London Luton
6 Jul - 13 Jul
£526pp
LHR
London Heathrow
Multiple airlines
 
1 STOP
SOU
Southampton Eastleigh
SOU
Southampton Eastleigh
Multiple Airlines
 
1 STOP
LHR
London Heathrow
6 Jul - 13 Jul
£548pp
LGW
London Gatwick
Multiple airlines
 
1 STOP
SOU
Southampton Eastleigh
SOU
Southampton Eastleigh
Multiple Airlines
   
2 STOPS
LGW
London Gatwick

London to Portsmouth 2020 flight deals

Cheap flights to Portsmouth from London found for this year
28 Aug - 31 Aug
£306pp
LHR
London Heathrow
Multiple airlines
 
1 STOP
SOU
Southampton Eastleigh
SOU
Southampton Eastleigh
Multiple Airlines
 
1 STOP
LHR
London Heathrow
6 Jul - 13 Jul
£455pp
LTN
London Luton
Multiple airlines
   
2 STOPS
SOU
Southampton Eastleigh
SOU
Southampton Eastleigh
Multiple Airlines
 
1 STOP
LTN
London Luton
6 Jul - 13 Jul
£526pp
LHR
London Heathrow
Multiple airlines
 
1 STOP
SOU
Southampton Eastleigh
SOU
Southampton Eastleigh
Multiple Airlines
 
1 STOP
LHR
London Heathrow

One-way flights to Portsmouth from London

The cheapest one-way flights from London to Portsmouth
02:15 - 04:35
National Express
Direct
2h 20m
LHR - SOU
National Express
£29
DreamWorldTravel
04:55 - 17:30
Loganair
2 stops
12h 35m
SEN - SOU
Loganair
£201
DreamWorldTravel

Related info for your journey

Useful info, stats and facts about London to Portsmouth flights.

Flight FAQs

From London to Portsmouth

Are flight prices decreasing from London to Southampton due to COVID-19 (coronavirus)?

At this time, Cheapflights has noticed price decreases for many domestic flights due to COVID-19. Travel is not necessarily recommended at this time, and flights may be prone to cancellation: please check with local authorities in both London and Southampton for travel alerts, and be sure to review the airline's cancellation policy and travel advisories before booking. For more information, please view our post on what to know about COVID-19 (coronavirus) and travel.

Can I find flights from London to Portsmouth for under £400 on Cheapflights?

Yes, there are multiple flights from London to Portsmouth for under £400. The cheapest flight booked recently is on Multiple Airlines for just £306, but on average you can expect to pay £477.

Are there direct flights from London to Portsmouth for under £300 on Cheapflights?

There are no direct flights from London to Portsmouth, but Cheapflights can provide you with all the information you need to find the fastest route with the fewest stops.

Is London weather warmer or cooler than Southampton?

With an average temperature of 23 °C, peak weather can be found in July. As a traveller, expect to see changes in flight prices during that period. The temperatures in Southampton are colder than in London.

Alternative routes for London to Portsmouth

Destination information for Portsmouth

Things to know before you go. Useful info for your trip from London to Portsmouth
Average temperature for July in Portsmouth
21.0 °C
Avg rainfall for July in Portsmouth
11.0 mm

Airports servicing London

Heathrow (LHR)
Luton (LTN)
Stansted (STN)
City (LCY)
Southend (SEN)

Airports servicing Southampton