Find flights
Airlines
FAQs

Cheap flights from Portsmouth to London Heathrow Airport from £125

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 27/7. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
LHR — LHR
28 Apr — 5 May1
1 adult
Sun 28/4
Sun 5/5

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.

Cheap British Airways flights from Portsmouth to Heathrow

Explore cheap flight options specifically provided by British Airways for the route between Portsmouth and Heathrow. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 928,330 searches. Data last updated 23 April 2024.
Consider these cheap British Airways flights we've found departing from Portsmouth to London. Deals update often to give you more flight options matching your criteria
Mon 13/516:30SOU - LHR
1 stop4h 25mBritish Airways
Tue 8/1015:20LHR - SOU
1 stop3h 50mBritish Airways
Deal found 22/4£414
Mon 29/412:30SOU - LHR
1 stop4h 10mBritish Airways
Sat 4/508:10LHR - SOU
1 stop5h 15mBritish Airways
Deal found 22/4£536

Cheap KLM flights from Portsmouth to Heathrow

Explore cheap flight options specifically provided by KLM for the route between Portsmouth and Heathrow. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 928,330 searches. Data last updated 23 April 2024.
To aid your search, here are some of the cheapest KLM flights we've found from Portsmouth to London. Ensure the flight price, dates, time, and airline match your criteria before you book.
Mon 20/517:20SOU - LHR
1 stop3h 35mKLM
Mon 27/520:55LHR - SOU
1 stop10h 30mKLM
Deal found 22/4£225
Thu 30/519:40SOU - LHR
1 stop12h 00mKLM
Mon 3/620:55LHR - SOU
1 stop10h 30mKLM
Deal found 23/4£226
Mon 20/519:40SOU - LHR
1 stop12h 00mKLM
Mon 27/520:55LHR - SOU
1 stop10h 30mKLM
Deal found 22/4£227
Tue 30/419:40SOU - LHR
1 stop12h 00mKLM
Tue 7/509:55LHR - SOU
1 stop9h 15mKLM
Deal found 22/4£299
Mon 29/419:40SOU - LHR
1 stop12h 00mKLM
Sat 4/508:40LHR - SOU
1 stop8h 10mKLM
Deal found 22/4£539
Sun 28/419:40SOU - LHR
1 stop12h 00mKLM
Sat 4/508:40LHR - SOU
1 stop8h 10mKLM
Deal found 21/4£642

Cheap Portsmouth to Heathrow flights in April & May 2024

Find cheap flight options from Portsmouth to Heathrow specifically for the months of April and May 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 928,330 searches. Prices were last updated on 23 April 2024.
These are some of the best deals we've found on flights to London in 2024 at this time. If these deals don't appeal to you, be sure to come back soon for more options.
Mon 20/517:20SOU - LHR
1 stop3h 35mKLM
Mon 27/520:55LHR - SOU
1 stop10h 30mKLM
Deal found 22/4£225
Thu 30/519:40SOU - LHR
1 stop12h 00mKLM
Mon 3/620:55LHR - SOU
1 stop10h 30mKLM
Deal found 22/4£226
Mon 20/519:40SOU - LHR
1 stop12h 00mKLM
Mon 27/520:55LHR - SOU
1 stop10h 30mKLM
Deal found 22/4£227
Tue 30/419:40SOU - LHR
1 stop12h 00mKLM
Tue 7/509:55LHR - SOU
1 stop9h 15mKLM
Deal found 22/4£299
Mon 20/507:55SOU - LHR
2 stops13h 40mMultiple Airlines
Mon 27/521:10LHR - SOU
1 stop12h 00mMultiple Airlines
Deal found 22/4£305
Mon 20/514:50SOU - LHR
2 stops18h 15mMultiple Airlines
Mon 27/521:10LHR - SOU
1 stop12h 00mMultiple Airlines
Deal found 22/4£313
Mon 20/514:50SOU - LHR
2 stops18h 15mMultiple Airlines
Mon 27/508:40LHR - SOU
2 stops24h 30mMultiple Airlines
Deal found 22/4£358
Mon 13/516:30SOU - LHR
1 stop4h 25mBritish Airways
Tue 8/1015:20LHR - SOU
1 stop3h 50mBritish Airways
Deal found 22/4£414
Mon 29/412:30SOU - LHR
1 stop4h 10mBritish Airways
Sat 4/508:10LHR - SOU
1 stop5h 15mBritish Airways
Deal found 22/4£536

Portsmouth to Heathrow 2024 flight deals

Discover exclusive flight deals for travel between Portsmouth and Heathrow in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 928,330 searches. Data last updated 23 April 2024.
These are some of the best deals we've found on flights to London in 2024 at this time. If these deals don't appeal to you, be sure to come back soon for more options.
Mon 20/517:20SOU - LHR
1 stop3h 35mKLM
Mon 27/520:55LHR - SOU
1 stop10h 30mKLM
Deal found 22/4£225
Thu 30/519:40SOU - LHR
1 stop12h 00mKLM
Mon 3/620:55LHR - SOU
1 stop10h 30mKLM
Deal found 22/4£226
Mon 20/519:40SOU - LHR
1 stop12h 00mKLM
Mon 27/520:55LHR - SOU
1 stop10h 30mKLM
Deal found 22/4£227
Tue 30/419:40SOU - LHR
1 stop12h 00mKLM
Tue 7/509:55LHR - SOU
1 stop9h 15mKLM
Deal found 22/4£299
Mon 20/507:55SOU - LHR
2 stops13h 40mMultiple Airlines
Mon 27/521:10LHR - SOU
1 stop12h 00mMultiple Airlines
Deal found 22/4£305
Mon 20/514:50SOU - LHR
2 stops18h 15mMultiple Airlines
Mon 27/521:10LHR - SOU
1 stop12h 00mMultiple Airlines
Deal found 22/4£313
Mon 20/514:50SOU - LHR
2 stops18h 15mMultiple Airlines
Mon 27/508:40LHR - SOU
2 stops24h 30mMultiple Airlines
Deal found 22/4£358
Mon 13/516:30SOU - LHR
1 stop4h 25mBritish Airways
Tue 8/1015:20LHR - SOU
1 stop3h 50mBritish Airways
Deal found 22/4£414
Mon 29/412:30SOU - LHR
1 stop4h 10mBritish Airways
Sat 4/508:10LHR - SOU
1 stop5h 15mBritish Airways
Deal found 22/4£536

Portsmouth to Heathrow flights leaving soon

Find last-minute flight options from Portsmouth to Heathrow for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 928,330 searches. Data last updated 23 April 2024.
Users seeking a last-minute flight from Portsmouth to London should consider booking one of these fares. Users should double check the flight they book to ensure it matches the day, time, and destination they're looking for.
Tue 30/419:40SOU - LHR
1 stop12h 00mKLM
Tue 7/509:55LHR - SOU
1 stop9h 15mKLM
Deal found 22/4£299
Mon 29/412:30SOU - LHR
1 stop4h 10mBritish Airways
Sat 4/508:10LHR - SOU
1 stop5h 15mBritish Airways
Deal found 22/4£536
Mon 29/419:40SOU - LHR
1 stop12h 00mKLM
Sat 4/508:40LHR - SOU
1 stop8h 10mKLM
Deal found 22/4£539
Sun 28/419:40SOU - LHR
1 stop12h 00mKLM
Sat 4/508:40LHR - SOU
1 stop8h 10mKLM
Deal found 21/4£642

One-way flights to Heathrow from Portsmouth

Search for one-way flight options from Portsmouth to Heathrow. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 928,330 searches. Data last updated 23 April 2024.
Take a look at some of the best available options we've come across on one-way flights from Portsmouth to London. Users in need of a round-trip flight from Portsmouth to London instead should update the search form at the top of page.
Sat 27/719:50SOU - LHR
1 stop12h 20mMultiple Airlines
Deal found 21/4£125
Mon 13/520:00SOU - LHR
1 stop14h 20mAer Lingus
Deal found 22/4£138
Fri 21/619:40SOU - LHR
1 stop11h 45mBritish Airways
Deal found 22/4£185
Thu 1/809:15SOU - LHR
1 stop8h 25mAer Lingus
Deal found 21/4£208
Wed 22/516:00SOU - LHR
1 stop4h 50mBritish Airways
Deal found 21/4£214
Sat 27/716:15SOU - LHR
1 stop5h 20mAer Lingus
Deal found 21/4£215
Thu 1/809:25SOU - LHR
2 stops9h 25mMultiple Airlines
Deal found 21/4£226
Thu 1/815:40SOU - LHR
1 stop4h 05mBritish Airways
Deal found 21/4£234
Fri 21/610:20SOU - LHR
2 stops12h 20mBritish Airways
Deal found 22/4£247

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 928,330 searches. Data last updated 23 April 2024.

Fly from

Any airport

Fly to

Any airport

Budget

£225 - £414

Route

Depart

Return

Price

Southampton EastleighLondon Heathrow

SOU - LHR

SOULHR

Southampton Eastleigh

Mon 20/5

1 stop3h 35m

London Heathrow

Mon 27/5

1 stop10h 30m

£225

Southampton EastleighLondon Heathrow

SOU - LHR

SOULHR

Southampton Eastleigh

Thu 30/5

1 stop12h 00m

London Heathrow

Mon 3/6

1 stop10h 30m

£226

Southampton EastleighLondon Heathrow

SOU - LHR

SOULHR

Southampton Eastleigh

Mon 20/5

1 stop12h 00m

London Heathrow

Mon 27/5

1 stop10h 30m

£227

Southampton EastleighLondon Heathrow

SOU - LHR

SOULHR

Southampton Eastleigh

Mon 20/5

2 stops13h 40m

London Heathrow

Mon 27/5

1 stop12h 00m

£305

Southampton EastleighLondon Heathrow

SOU - LHR

SOULHR

Southampton Eastleigh

Mon 20/5

2 stops18h 15m

London Heathrow

Mon 27/5

1 stop12h 00m

£313

Southampton EastleighLondon Heathrow

SOU - LHR

SOULHR

Southampton Eastleigh

Mon 20/5

2 stops18h 15m

London Heathrow

Mon 27/5

2 stops24h 30m

£358

Southampton EastleighLondon Heathrow

SOU - LHR

SOULHR

Southampton Eastleigh

Mon 13/5

1 stop4h 25m

London Heathrow

Tue 8/10

1 stop3h 50m

£414

Flights are sorted by cheapest first

Deals found on 22/4

No data available for this route at this time. Please check back soon.

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 23 April 2024.
Read reviews from past customers who have flown British Airways and KLM from Portsmouth to London. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
KLM
7.9
Good
1,632 reviews
Check prices

Entertainment

7.3

Boarding

7.8

Food

7.3

Comfort

7.6

Overall

7.9

Crew

8.4

Reviews

1 / 10

Departure was late. Plane much too small for an 11 hour flight. One bathroom was out of order in a completely full flight.

KLM
7.9
Good
1,632 reviews
KLM
7.9
Good
1,632 reviews
Check prices

Entertainment

7.3

Boarding

7.8

Food

7.3

Comfort

7.6

Overall

7.9

Crew

8.4

Reviews

1 / 10

Departure was late. Plane much too small for an 11 hour flight. One bathroom was out of order in a completely full flight.

Aer Lingus
7.2
Good
1,352 reviews
KLM
7.9
Good
1,632 reviews
Check prices

Entertainment

7.3

Boarding

7.8

Food

7.3

Comfort

7.6

Overall

7.9

Crew

8.4

Reviews

1 / 10

Departure was late. Plane much too small for an 11 hour flight. One bathroom was out of order in a completely full flight.

British Airways
6.9
Okay
6,937 reviews
KLM
7.9
Good
1,632 reviews
Check prices

Entertainment

7.3

Boarding

7.8

Food

7.3

Comfort

7.6

Overall

7.9

Crew

8.4

Reviews

1 / 10

Departure was late. Plane much too small for an 11 hour flight. One bathroom was out of order in a completely full flight.

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 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 £295.

  • Are there last-minute flights available from Portsmouth to London Heathrow Airport for under £300?

    There are currently 4+ open flights from Portsmouth to London Heathrow Airport within the next 7 days for less than £300.

  • What does LHR to LHR mean?

    London Heathrow Airport is LHR and London Heathrow Airport is LHR. These codes are created by the International Air Transport Association (IATA) and airlines use them to identify the departing and arrival airports in the flight routes they service. London Gatwick Airport (LGW), London Stansted Airport (STN), London Luton Airport (LTN), London City Airport (LCY), Southampton Eastleigh Airport (SOU) are other airports near this flight route and their unique identifiers/IATA codes.

  • Can I find deals for flights from Portsmouth to Heathrow that include extra baggage allowance?

    The amount of baggage you can bring on your Portsmouth to Heathrow flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from Portsmouth to Heathrow with specific airlines?

    Yes, Cheapflights allows you to browse and filter Portsmouth to Heathrow flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

  • 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.

  • Can I find deals for flights from Portsmouth to Heathrow that allow pets onboard?

    Many airlines flying from Portsmouth to Heathrow offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from Portsmouth to Heathrow?

    Yes, you can often find last-minute deals on Portsmouth to Heathrow flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the Portsmouth to London Heathrow Airport flight deals updated?

    The Portsmouth to London Heathrow Airport flight deals you see on this page were last updated on 22/4.

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.

Manchester to Heathrow flights
Manchester to Gatwick flights
Manchester to London City flights
Newcastle upon Tyne to Heathrow flights
Manchester to Luton flights
Manchester to Stansted flights
Bristol to Heathrow flights
Exeter to Heathrow flights
Newcastle upon Tyne to Gatwick flights
Newcastle upon Tyne to Luton flights
Newcastle upon Tyne to Stansted flights
Leeds to Heathrow flights
Newcastle upon Tyne to London City flights
Leeds to London City flights
Southampton to Heathrow flights
Southampton to London City flights
Birmingham to Heathrow flights
Leeds to Gatwick flights
Exeter to London City flights
Newquay to Gatwick flights
Newquay to Heathrow flights
Liverpool to Heathrow flights
Bristol to London City flights
Leeds to Luton flights
Newquay to London City flights
Leeds to Stansted flights
Liverpool to Gatwick flights
Liverpool to Luton flights
Liverpool to Stansted flights
Liverpool to London City flights
Birmingham to London City flights
Birmingham to Stansted flights
Birmingham to Gatwick flights
Newquay to Stansted flights
Exeter to Gatwick flights
Southampton to Gatwick flights
Birmingham to Luton flights
Bristol to Luton flights
Exeter to Luton flights
Darlington to Heathrow flights
Newquay to Luton flights
East Midlands to Heathrow flights
Bristol to Gatwick flights
Bristol to Stansted flights
East Midlands to Gatwick flights
Exeter to Stansted flights
Belfast Intl Airport to Newcastle upon Tyne flights
London to New Zealand flights
Glasgow to London flights
London to Venice flights
London Heathrow Airport to Karachi flights
London to Christchurch flights
London to Canary Islands flights
Edinburgh to Amsterdam flights
London to Philadelphia flights
London Heathrow Airport to Kochi flights
London to Dublin flights
Portsmouth to Limoges flights

Search flights from Portsmouth to Heathrow by cabin class

Find flights from Portsmouth to Heathrow, based on your preferred cabin class, be it economy, premium economy, business, or first class.
First Class
Business Class
Prem Econ Class
Economy class

Hourly flight availability from Portsmouth to Heathrow

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 23 April 2024.
12%of flight departuresEarly morningMidnight to 6 am
32%of flight departuresMorning6 am to noon
35%of flight departuresAfternoonNoon to 6 pm
21%of flight departuresEvening6 pm to midnight
Midnight
6 AM
Midday
6 PM

Book a flight to one of these trending destinations

User searches for flights to these destinations increased 20% or more in the past 90 days compared to other destinations
Flights to Providence-TFGreen
Flights to Monterey Regional
Flights to New Bern Coastal Carolina Rgnl
Flights to Clermont-Ferrand Aulnat
Flights to Lille Lesquin
Flights to Naxos
Flights to Lihue
Flights to Cagayan de Oro Laguindingan
Flights to Lynchburg Preston-Glenn Field
Flights to Kalamata
Flights to Malmö
Flights to Kavála Megas Alexandros
Flights to La Rochelle Laleu
Flights to Appleton Intl
Flights to Rijeka
Flights to Avignon-Caum
Flights to Kalamazoo Intl
Flights to Flagstaff Pulliam
Flights to Rimini Miramare

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