Cheap flights from London to Portsmouth

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London (LON)
Southampton (SOU)
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The best prices from London to Portsmouth are usually found in March or May, booked 36 days in advance, depart on a Thursday or Friday and return on a Saturday

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

All the information you need to plan the best LON to SOU flight in 2021: compare London to Portsmouth flight prices with the expected peak season, weather and rainfall in Portsmouth.
LON - SOU
Price
£55 - £218
SOU
Temperature
9 - 22 °C
SOU
Rainfall
0 - 11 mm

Popular in

June

High demand for flights, 39% potential price rise

Cheapest in

March

Best time to find cheap flights, 59% potential price drop

Average price

£120

Average for round-trip flights in April 2021

Round-trip from

£55

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 Sunday 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.

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

Flights from London to Portsmouth lean towards being more expensive in March. Prices are generally better when you fly from London to Portsmouth in August, with the cheapest ticket starting at £42.

When is the cheapest time to fly from London to Portsmouth (LON - SOU)?

A simple way to save on the total cost of your ticket is to fly from London to Portsmouth in the evening. If you’re flexible enough to do this you can expect to save up to 80% on your trip compared to booking a flight at midday.

Cheap flights from London to Portsmouth in April, May 2021

The best prices found for LON to SOU flights in April, May
20 May - 27 May
£293pp
LHR
London Heathrow
Multiple airlines
 
1 STOP
SOU
Southampton Eastleigh
SOU
Southampton Eastleigh
Multiple Airlines
 
1 STOP
LHR
London Heathrow
23 Apr - 25 Apr
£399pp
LHR
London Heathrow
British Airways
 
1 STOP
SOU
Southampton Eastleigh
SOU
Southampton Eastleigh
British Airways
 
1 STOP
LHR
London Heathrow
20 May - 27 May
£402pp
LHR
London Heathrow
Multiple airlines
     
3 STOPS
SOU
Southampton Eastleigh
SOU
Southampton Eastleigh
Multiple Airlines
     
3 STOPS
LHR
London Heathrow

London to Portsmouth 2021 flight deals

Cheap flights to Portsmouth from London found for this year
20 May - 27 May
£293pp
LHR
London Heathrow
Multiple airlines
 
1 STOP
SOU
Southampton Eastleigh
SOU
Southampton Eastleigh
Multiple Airlines
 
1 STOP
LHR
London Heathrow
2 Aug - 8 Aug
£379pp
LCY
London City
British Airways
 
1 STOP
SOU
Southampton Eastleigh
SOU
Southampton Eastleigh
British Airways
 
1 STOP
LCY
London City
23 Apr - 25 Apr
£399pp
LHR
London Heathrow
British Airways
 
1 STOP
SOU
Southampton Eastleigh
SOU
Southampton Eastleigh
British Airways
 
1 STOP
LHR
London Heathrow

Related info for your journey

Useful info, stats and facts about <span class="emphasized">London</span> to <span class="emphasized">Portsmouth</span> 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.

Which airlines flying from London to Southampton Eastleigh have flexible cancellations due to COVID-19?

Due to the rapidly changing circumstances due to COVID-19, airlines like Flybe and AccesRail flying from London to Southampton Eastleigh have implemented new flexible cancellation policies.

What airport do you fly into for flights to Southampton from London?

Southampton Eastleigh (SOU), located 3.5 mi from the city center, is the airport you fly into when you book flights from London to Southampton. 2 airlines have flights to Eastleigh from London on a regular basis. Booking flights from London to Southampton Eastleigh should not be difficult; the airport handles an average of 0 inbound flights from London per day.

Can I find flights from London to Portsmouth for under £359 on Cheapflights?

Yes, there are multiple flights from London to Portsmouth for under £359. The cheapest flight booked recently is on Multiple Airlines for just £293, but on average you can expect to pay £406.

Are there direct flights from London to Portsmouth for under £287 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.

How long does is the flight from London to Portsmouth?

British Airways and Loganair can get you from London to Portsmouth in just under 4h 20m. Your travel time can differ by up to 19h 45m. This flight may include one or multiple stops.

What are the cheapest airlines to flying from London to Portsmouth return?

Cheapflights users have booked flights from London to Portsmouth from £380 return. Another airline that can offer you cheap pricing is Loganair.

Alternative routes for London to Portsmouth

See prices for flight routes from nearby airports that may be better suited for you.

Destination information for Portsmouth

Things to know before you go - useful duration and weather info for your trip from London to Portsmouth.
Average temperature for April in Portsmouth
13.0 °C
Avg rainfall for April in Portsmouth
5.0 mm

Airports servicing London

Gatwick (LGW)
City (LCY)
Stansted (STN)
Luton (LTN)
Southend (SEN)

Airports servicing Southampton

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