Cheap flights from Portsmouth to Heathrow

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How to find the cheapest flight from
Portsmouth to Heathrow (LHR)

All the information you need to plan the best null to LHR flight in 2022: compare Portsmouth to Heathrow flight prices with the expected peak season, weather and rainfall in Heathrow.
When is the cheapest time to fly from Portsmouth to London Heathrow Airport (P0R - LHR)?

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

How far in advance should I book a flight from Portsmouth to London Heathrow Airport?

Travelers have found it’s best to book a flight 34 days in advance to save up to 6% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 34 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from Portsmouth to London Heathrow Airport 1-2 weeks in advance for as low as £63, or £64 for flights within the next 24 hours.

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

June can be a great time to fly to London Heathrow Airport from Portsmouth with a flight ticket averaging about £249. Cheapflights users have found deals in the month of June for as cheap as £49. The most expensive prices can be found in the month of December.

Cheap flights from Portsmouth to Heathrow in June, July 2022

The best prices found for Portsmouth to LHR flights in June, July
16 Jul - 23 Jul
£326pp
SOU
Southampton Eastleigh
British Airways
 
1 STOP
LHR
London Heathrow
LHR
London Heathrow
British Airways
 
1 STOP
SOU
Southampton Eastleigh
16 Jul - 17 Jul
£332pp
SOU
Southampton Eastleigh
British Airways
 
1 STOP
LHR
London Heathrow
LHR
London Heathrow
British Airways
 
1 STOP
SOU
Southampton Eastleigh
20 Jul - 20 Aug
£374pp
SOU
Southampton Eastleigh
British Airways
 
1 STOP
LHR
London Heathrow
LHR
London Heathrow
British Airways
 
1 STOP
SOU
Southampton Eastleigh

Portsmouth to Heathrow 2022 flight deals

Cheap flights to Heathrow from Portsmouth found for this year
17 Aug - 9 Sep
£249pp
SOU
Southampton Eastleigh
Multiple airlines
 
1 STOP
LHR
London Heathrow
LHR
London Heathrow
British Airways
 
1 STOP
SOU
Southampton Eastleigh
10 Aug - 8 Feb
£252pp
SOU
Southampton Eastleigh
British Airways
 
1 STOP
LHR
London Heathrow
LHR
London Heathrow
British Airways
 
1 STOP
SOU
Southampton Eastleigh
10 Aug - 24 Aug
£257pp
SOU
Southampton Eastleigh
British Airways
 
1 STOP
LHR
London Heathrow
LHR
London Heathrow
British Airways
 
1 STOP
SOU
Southampton Eastleigh

Last-minute flights from Portsmouth to Heathrow

Late deals on return flights to Heathrow from Portsmouth, departing today and this week
6 Jul - 9 Jul
£835pp
SOU
Southampton Eastleigh
British Airways
 
1 STOP
LHR
London Heathrow
LHR
London Heathrow
British Airways
 
1 STOP
SOU
Southampton Eastleigh

One-way flights to Heathrow from Portsmouth

The cheapest one-way flights from Portsmouth to Heathrow
13:10 - 16:45
British Airways
1 stop
3h 35m
SOU - LHR
British Airways
13:10 - 17:10
British Airways
1 stop
4h 00m
SOU - LHR
British Airways
05:00 - 11:30
British Airways
1 stop
6h 30m
SOU - LHR
British Airways

Related info for your journey

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

Flight FAQs

From Portsmouth to Heathrow

Which airlines flying from Portsmouth to London Heathrow have flexible cancellations due to COVID-19?

Due to the rapidly changing circumstances due to COVID-19, airlines like 748 Air Services, AccesRail, and Flybe flying from Portsmouth to London Heathrow have implemented new flexible cancellation policies.

Can I find flights from Portsmouth to London Heathrow Airport for under £300 on Cheapflights?

Yes, there are multiple flights from Portsmouth to London Heathrow Airport for under £300. The cheapest flight booked recently is on British Airways for just £257, but on average you can expect to pay £331.

Are there last-minute flights available from Portsmouth to London Heathrow Airport for under £900?

There are currently 1+ open flights from Portsmouth to London Heathrow Airport within the next 7 days for less than £900.

Alternative routes for Portsmouth to Heathrow

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

Destination information for Heathrow

Things to know before you go - useful duration and weather info for your trip from Portsmouth to Heathrow.
Average temperature for June in Heathrow
21.0 °C
Avg rainfall for June in Heathrow
45.0 mm

Airports servicing Portsmouth

Airports servicing London

Hourly flight availability from Portsmouth to Heathrow

See what time of day planes typically take off from Portsmouth towards Heathrow.
Afternoon Midday to 6 PM 41% of flight departures
Morning 6 AM to midday 32% of flight departures
Evening 6 PM to midnight 22% of flight departures
Early morning Midnight to 6 AM 5% of flight departures
Midnight
6 AM
Noon
6 PM
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