Find flights
Airlines

Cheap flights from Portsmouth to London Heathrow Airport from £133

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 25/11. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — LHR
20 Nov — 27 Nov1
1 adult

Cheap flight deals from Portsmouth to Heathrow

Discover tips and strategies to find the most affordable flight options for your journey from Portsmouth (P0R) to Heathrow (LHR). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 15 November 2024.

Find flight deals from Portsmouth to Heathrow

Cheapest flights from Portsmouth to Heathrow
Explore the most affordable flight options available from Portsmouth to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 15 November 2024.

Tue 10/1209:30SOU - LHR
1 stop6h 05mAer Lingus
Wed 11/1220:45LHR - SOU
1 stop12h 00mAer Lingus
Deal found 14/11£241
Tue 10/1209:30SOU - LHR
1 stop6h 05mMultiple Airlines
Wed 11/1213:30LHR - SOU
1 stop5h 25mMultiple Airlines
Deal found 15/11£255
Sat 7/1217:20SOU - LHR
1 stop3h 30mKLM
Fri 13/1220:25LHR - SOU
1 stop12h 25mKLM
Deal found 14/11£333
Tue 17/1208:55SOU - LHR
1 stop11h 50mBritish Airways
Sun 22/1221:00LHR - SOU
1 stop11h 00mBritish Airways
Deal found 14/11£551

Find flights from Portsmouth to Heathrow within your budget

Customise your flight search to find flights from Portsmouth to Heathrow that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 943,810 searches. Data last updated 15 November 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

SouthamptonLondon

SOU - LHR

SOULHR

Southampton Eastleigh

Thu 23/1

17:20-20:50

1 stop3h 30m

London Heathrow

Wed 12/2

08:40-16:50

1 stop8h 10m

£201

SouthamptonLondon

SOU - LHR

SOULHR

Southampton Eastleigh

Tue 10/12

09:30-15:35

1 stop6h 05m

London Heathrow

Wed 11/12

20:45-08:45

1 stop12h 00m

£241

SouthamptonLondon

SOU - LHR

SOULHR

Southampton Eastleigh

Tue 10/12

09:30-15:35

1 stop6h 05m

London Heathrow

Wed 11/12

13:30-18:55

1 stop5h 25m

£255

SouthamptonLondon

SOU - LHR

SOULHR

Southampton Eastleigh

Sat 14/12

08:55-16:30

1 stop7h 35m

London Heathrow

Sat 21/12

06:55-14:40

1 stop7h 45m

£427

SouthamptonLondon

SOU - LHR

SOULHR

Southampton Eastleigh

Mon 25/11

20:10-15:35

1 stop19h 25m

£133

SouthamptonLondon

SOU - LHR

SOULHR

Southampton Eastleigh

Sat 21/12

13:40-18:50

1 stop5h 10m

£177

SouthamptonLondon

SOU - LHR

SOULHR

Southampton Eastleigh

Mon 25/11

14:40-08:15

2 stops17h 35m

£214

Flights are sorted by cheapest first

Deals found on 15/11

Best time to book a flight from Portsmouth to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow 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.

Travel insights for flights from Portsmouth to Heathrow

Get recent, data-driven insights about flights from Portsmouth to Heathrow including ideal travel times, pricing trends, and more.

What is the cheapest time of day to fly from P0R to LHR?

Find hourly flight availability from Portsmouth to Heathrow. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 15 November 2024.

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.

Rainfall in Heathrow by month

Plan your trip to Heathrow by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in London Heathrow Airport 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 Heathrow Airport when rainfall is around 40.0 mm.

Temperature in Heathrow by month

Plan your trip to Heathrow by taking into account the average temperature totals by month.

If weather is an important factor for your trip to London Heathrow Airport, 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).

Reviews of airlines servicing Heathrow

Get insights into the airlines that provide service to Heathrow. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Heathrow. Reviews last updated 15 November 2024.
KLM
7.8
Good
1,350 reviews
Check prices

Crew

8.4

Entertainment

7.2

Boarding

7.9

Comfort

7.7

Food

7.3

Overall

7.8

Reviews

1 / 10

Flight performed by El Al. The aircraft was dirty. Gum in front pcket. Poorly maintained.

KLM
7.8
Good
1,350 reviews
KLM
7.8
Good
1,350 reviews
Check prices

Crew

8.4

Entertainment

7.2

Boarding

7.9

Comfort

7.7

Food

7.3

Overall

7.8

Reviews

1 / 10

Flight performed by El Al. The aircraft was dirty. Gum in front pcket. Poorly maintained.

Aer Lingus
7.1
Good
1,085 reviews
KLM
7.8
Good
1,350 reviews
Check prices

Crew

8.4

Entertainment

7.2

Boarding

7.9

Comfort

7.7

Food

7.3

Overall

7.8

Reviews

1 / 10

Flight performed by El Al. The aircraft was dirty. Gum in front pcket. Poorly maintained.

British Airways
6.7
Okay
6,836 reviews
KLM
7.8
Good
1,350 reviews
Check prices

Crew

8.4

Entertainment

7.2

Boarding

7.9

Comfort

7.7

Food

7.3

Overall

7.8

Reviews

1 / 10

Flight performed by El Al. The aircraft was dirty. Gum in front pcket. Poorly maintained.

Related info for your journey

Find useful and relevant information for your journey from Portsmouth to Heathrow. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

    Yes. In addition to deals on Portsmouth to Heathrow flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Portsmouth to Heathrow?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Portsmouth to Heathrow.

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

    Yes. Cheapflights offers flight deals from Portsmouth to Heathrow 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 Heathrow Airport?

    Currently, January is the cheapest month in which you can book a flight from Portsmouth to London Heathrow Airport (average of £112). Flying from Portsmouth to London Heathrow Airport in July is currently the most expensive (average of £160). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Portsmouth to Heathrow

See prices for flight routes from nearby airports that may be better suited for you.
Edinburgh to Gatwick flights
Edinburgh to Stansted flights
Edinburgh to Luton flights
Edinburgh to Heathrow flights
Edinburgh to London City flights
Manchester to Heathrow flights
Manchester to Gatwick flights
Newcastle upon Tyne to Heathrow flights
Exeter to Heathrow flights
Manchester to London City flights
Leeds to Heathrow flights
Exeter to London City flights
Leeds to London City flights
Leeds to Gatwick flights
Newcastle upon Tyne to London City flights
Manchester to Stansted flights
Newcastle upon Tyne to Gatwick flights
Manchester to Luton flights
Newcastle upon Tyne to Luton flights
Newcastle upon Tyne to Stansted flights
Newquay to Gatwick flights
Bristol to Heathrow flights
Heathrow to Gatwick flights
Newquay to Heathrow flights
Liverpool to Gatwick flights
Liverpool to Heathrow flights
Leeds to Luton flights
Exeter to Gatwick flights
Bristol to London City flights
Liverpool to Stansted flights
Liverpool to Luton flights
Liverpool to London City flights
Gatwick to Heathrow flights
Leeds to Stansted flights
Manchester to Southend flights
Birmingham to Heathrow flights
Newquay to London City flights
Exeter to Luton flights
Newquay to Stansted flights
Birmingham to Stansted flights
Southampton to Heathrow flights
Darlington to Heathrow flights
Newquay to Luton flights
Liverpool to Southend flights
Bristol to Gatwick flights
Exeter to Stansted flights
Bristol to Luton flights
Newcastle upon Tyne to Southend flights
Birmingham to Gatwick flights
Bristol to Stansted flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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

Cheapflights makes it easy to find Portsmouth to Heathrow flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

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

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 Heathrow.

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

Users can book flights with no change fees policies with our dedicated filters. Book flights from Portsmouth to Heathrow flexibly with Cheapflights today.

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

Of course! You can now track prices for flights from Portsmouth to Heathrow and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.
View all available airlines