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 2021: 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.

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

August can be a great time to fly to London Heathrow Airport from Portsmouth with a flight ticket averaging about £58. Cheapflights users have found deals in the month of August for as cheap as £42. The most expensive prices can be found in the month of March.

Cheap flights from Portsmouth to Heathrow in October, November 2021

The best prices found for Portsmouth to LHR flights in October, November
28 Oct - 30 Oct
£474pp
SOU
Southampton Eastleigh
KLM
 
1 STOP
LHR
London Heathrow
LHR
London Heathrow
KLM
 
1 STOP
SOU
Southampton Eastleigh

Portsmouth to Heathrow 2021 flight deals

Cheap flights to Heathrow from Portsmouth found for this year
23 Dec - 25 Dec
£226pp
SOU
Southampton Eastleigh
KLM
 
1 STOP
LHR
London Heathrow
LHR
London Heathrow
KLM
 
1 STOP
SOU
Southampton Eastleigh
23 Dec - 25 Dec
£228pp
SOU
Southampton Eastleigh
KLM
 
1 STOP
LHR
London Heathrow
LHR
London Heathrow
KLM
 
1 STOP
SOU
Southampton Eastleigh
23 Dec - 25 Dec
£254pp
SOU
Southampton Eastleigh
Multiple airlines
   
2 STOPS
LHR
London Heathrow
LHR
London Heathrow
KLM
 
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
28 Oct - 30 Oct
£474pp
SOU
Southampton Eastleigh
KLM
 
1 STOP
LHR
London Heathrow
LHR
London Heathrow
KLM
 
1 STOP
SOU
Southampton Eastleigh

One-way flights to Heathrow from Portsmouth

The cheapest one-way flights from Portsmouth to Heathrow
09:40 - 14:50
Multiple Airlines
1 stop
5h 10m
SOU - LHR
Multiple Airlines
£154
Kiwi.com

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 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 KLM for just £225, but on average you can expect to pay £289.

Are there last-minute flights available from Portsmouth to London Heathrow Airport for under £500?

There are currently 1+ open flights from Portsmouth to London Heathrow Airport within the next 7 days for less than £500.

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 October in Heathrow
16.0 °C
Avg rainfall for October in Heathrow
66.0 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 40% of flight departures
Morning 6 AM to midday 29% of flight departures
Evening 6 PM to midnight 28% of flight departures
Early morning Midnight to 6 AM 3% of flight departures
Midnight
6 AM
Noon
6 PM
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