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Cheap flights from Portsmouth to London Heathrow Airport from £100

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 7/7. 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
4 Jun — 11 Jun1
1 adult
Tue 4/6
Tue 11/6

What is the cheapest time of day to fly from P0R to 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 908,271 searches. Data last updated 30 May 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
Thu 13/615:40SOU - LHR
1 stop4h 05mBritish Airways
Thu 20/607:30LHR - SOU
1 stop7h 40mBritish Airways
Deal found 30/5£405
Wed 12/615:40SOU - LHR
1 stop5h 20mBritish Airways
Thu 13/614:15LHR - SOU
1 stop4h 40mBritish Airways
Deal found 30/5£462
Tue 25/615:40SOU - LHR
1 stop3h 55mBritish Airways
Fri 5/709:40LHR - SOU
1 stop5h 30mBritish Airways
Deal found 30/5£578

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 908,271 searches. Data last updated 30 May 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 26/819:40SOU - LHR
1 stop12h 00mKLM
Wed 28/811:45LHR - SOU
1 stop5h 05mKLM
Deal found 30/5£319
Thu 6/617:20SOU - LHR
1 stop3h 35mKLM
Thu 13/614:45LHR - SOU
1 stop4h 25mKLM
Deal found 30/5£631

Cheap Portsmouth to Heathrow flights in May & June 2024

Find cheap flight options from Portsmouth to Heathrow specifically for the months of May and June 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 908,271 searches. Prices were last updated on 30 May 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.
Wed 26/619:40SOU - LHR
1 stop12h 00mKLM
Wed 3/720:55LHR - SOU
1 stop11h 05mKLM
Deal found 29/5£213
Wed 26/619:40SOU - LHR
1 stop12h 00mKLM
Wed 3/720:55LHR - SOU
1 stop11h 05mKLM
Deal found 29/5£214
Wed 26/612:20SOU - LHR
2 stops9h 15mMultiple Airlines
Wed 3/706:45LHR - SOU
1 stop12h 45mMultiple Airlines
Deal found 29/5£261
Wed 26/612:20SOU - LHR
2 stops9h 15mMultiple Airlines
Wed 3/720:50LHR - SOU
2 stops23h 10mMultiple Airlines
Deal found 29/5£262
Wed 26/612:20SOU - LHR
2 stops9h 15mMultiple Airlines
Wed 3/720:50LHR - SOU
2 stops23h 10mMultiple Airlines
Deal found 29/5£263
Sat 29/616:15SOU - LHR
1 stop5h 20mAer Lingus
Sat 6/719:40LHR - SOU
1 stop13h 30mAer Lingus
Deal found 30/5£300
Thu 13/615:40SOU - LHR
1 stop4h 05mBritish Airways
Thu 20/607:30LHR - SOU
1 stop7h 40mBritish Airways
Deal found 30/5£405
Wed 12/615:40SOU - LHR
1 stop5h 20mBritish Airways
Thu 13/614:15LHR - SOU
1 stop4h 40mBritish Airways
Deal found 30/5£462
Thu 30/519:40SOU - LHR
1 stop12h 00mKLM
Thu 6/620:55LHR - SOU
1 stop10h 30mKLM
Deal found 30/5£566

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 908,271 searches. Data last updated 30 May 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.
Wed 26/619:40SOU - LHR
1 stop12h 00mKLM
Wed 3/720:55LHR - SOU
1 stop11h 05mKLM
Deal found 29/5£213
Wed 26/619:40SOU - LHR
1 stop12h 00mKLM
Wed 3/720:55LHR - SOU
1 stop11h 05mKLM
Deal found 29/5£214
Wed 26/612:20SOU - LHR
2 stops9h 15mMultiple Airlines
Wed 3/706:45LHR - SOU
1 stop12h 45mMultiple Airlines
Deal found 29/5£261
Wed 26/612:20SOU - LHR
2 stops9h 15mMultiple Airlines
Wed 3/720:50LHR - SOU
2 stops23h 10mMultiple Airlines
Deal found 29/5£262
Wed 26/612:20SOU - LHR
2 stops9h 15mMultiple Airlines
Wed 3/720:50LHR - SOU
2 stops23h 10mMultiple Airlines
Deal found 29/5£263
Sat 29/616:15SOU - LHR
1 stop5h 20mAer Lingus
Sat 6/719:40LHR - SOU
1 stop13h 30mAer Lingus
Deal found 30/5£300
Mon 26/819:40SOU - LHR
1 stop12h 00mKLM
Wed 28/811:45LHR - SOU
1 stop5h 05mKLM
Deal found 30/5£319
Thu 13/615:40SOU - LHR
1 stop4h 05mBritish Airways
Thu 20/607:30LHR - SOU
1 stop7h 40mBritish Airways
Deal found 30/5£405
Wed 12/615:40SOU - LHR
1 stop5h 20mBritish Airways
Thu 13/614:15LHR - SOU
1 stop4h 40mBritish Airways
Deal found 30/5£462

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 908,271 searches. Data last updated 30 May 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.
Thu 6/617:20SOU - LHR
1 stop3h 35mKLM
Thu 13/614:45LHR - SOU
1 stop4h 25mKLM
Deal found 30/5£631

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 908,271 searches. Data last updated 30 May 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.
Sun 7/720:00SOU - LHR
1 stop14h 20mAer Lingus
Deal found 30/5£100
Sun 7/709:40SOU - LHR
2 stops23h 25mMultiple Airlines
Deal found 30/5£154
Fri 12/709:15SOU - LHR
1 stop10h 30mAer Lingus
Deal found 30/5£223

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 908,271 searches. Data last updated 30 May 2024.

Fly from

Any airport

Fly to

Any airport

Budget

£300 - £834

Route

Depart

Return

Price

Southampton EastleighLondon Heathrow

SOU - LHR

SOULHR

Southampton Eastleigh

Sat 29/6

1 stop5h 20m

London Heathrow

Sat 6/7

1 stop13h 30m

£300

Southampton EastleighLondon Heathrow

SOU - LHR

SOULHR

Southampton Eastleigh

Mon 26/8

1 stop12h 00m

London Heathrow

Wed 28/8

1 stop5h 05m

£319

Southampton EastleighLondon Heathrow

SOU - LHR

SOULHR

Southampton Eastleigh

Thu 13/6

1 stop4h 05m

London Heathrow

Thu 20/6

1 stop7h 40m

£405

Southampton EastleighLondon Heathrow

SOU - LHR

SOULHR

Southampton Eastleigh

Wed 12/6

1 stop5h 20m

London Heathrow

Thu 13/6

1 stop4h 40m

£462

Southampton EastleighLondon Heathrow

SOU - LHR

SOULHR

Southampton Eastleigh

Tue 25/6

1 stop3h 55m

London Heathrow

Fri 5/7

1 stop5h 30m

£578

Southampton EastleighLondon Heathrow

SOU - LHR

SOULHR

Southampton Eastleigh

Mon 26/8

2 stops21h 50m

London Heathrow

Wed 28/8

2 stops20h 10m

£834

Flights are sorted by cheapest first

Deals found on 30/5

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

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.

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 30 May 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
1,520 reviews
Check prices

Crew

8.4

Food

7.4

Entertainment

7.2

Overall

7.9

Comfort

7.7

Boarding

7.9

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
1,520 reviews
KLM
7.9
Good
1,520 reviews
Check prices

Crew

8.4

Food

7.4

Entertainment

7.2

Overall

7.9

Comfort

7.7

Boarding

7.9

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
1,306 reviews
KLM
7.9
Good
1,520 reviews
Check prices

Crew

8.4

Food

7.4

Entertainment

7.2

Overall

7.9

Comfort

7.7

Boarding

7.9

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
6.8
Okay
6,765 reviews
KLM
7.9
Good
1,520 reviews
Check prices

Crew

8.4

Food

7.4

Entertainment

7.2

Overall

7.9

Comfort

7.7

Boarding

7.9

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 Aer Lingus for just £300, but on average you can expect to pay £483.

  • Are there last-minute flights available from Portsmouth to London Heathrow Airport for under £700?

    There are currently 1+ open flights from Portsmouth to London Heathrow Airport within the next 7 days for less than £700.

  • 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 30/5.

  • 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 £110). Flying from Portsmouth to London Heathrow Airport in June is currently the most expensive (average of £162). 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

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Alternative routes for Portsmouth to Heathrow
See prices for flight routes from nearby airports that may be better suited for you.

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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 30 May 2024.
15%of flight departuresEarly morningMidnight to 6 am
32%of flight departuresMorning6 am to noon
34%of flight departuresAfternoonNoon to 6 pm
19%of flight departuresEvening6 pm to midnight
Midnight
6 AM
Midday
6 PM

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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.

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