Find flights
When to book
Airlines
FAQs

Cheap flights from London Heathrow Airport to Portsmouth 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 13/5. 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
23 Apr — 30 Apr1
1 adult
Tue 23/4
Tue 30/4

Cheap flight deals from Heathrow to Portsmouth

Discover tips and strategies to find the most affordable flight options for your journey from Heathrow (LHR) to Portsmouth (P0R). 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 18 April 2024.

Round-trip from

£73
From London Heathrow to Portsmouth

When is the cheapest time to fly from London Heathrow Airport to Portsmouth (LHR - P0R)?

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

Cheap KLM flights from Heathrow to Portsmouth

Explore cheap flight options specifically provided by KLM for the route between Heathrow and Portsmouth. 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 899,432 searches. Data last updated 18 April 2024.
Consider these cheap KLM flights we've found departing from London to Portsmouth. Deals update often to give you more flight options matching your criteria
Mon 15/720:55LHR - SOU
1 stop11h 05mKLM
Tue 30/717:20SOU - LHR
1 stop3h 35mKLM
Deal found 18/4£201
Wed 15/520:55LHR - SOU
1 stop10h 30mKLM
Wed 22/507:55SOU - LHR
1 stop9h 40mKLM
Deal found 17/4£213
Mon 15/720:55LHR - SOU
1 stop11h 05mKLM
Mon 29/717:20SOU - LHR
1 stop3h 35mKLM
Deal found 18/4£226
Thu 9/508:40LHR - SOU
1 stop8h 10mKLM
Thu 16/507:55SOU - LHR
1 stop5h 55mKLM
Deal found 18/4£238
Mon 15/720:55LHR - SOU
1 stop11h 05mKLM
Sat 27/708:30SOU - LHR
1 stop9h 20mKLM
Deal found 18/4£241
Wed 10/708:40LHR - SOU
1 stop8h 10mKLM
Tue 30/717:20SOU - LHR
1 stop3h 35mKLM
Deal found 18/4£258
Thu 11/720:55LHR - SOU
1 stop11h 05mKLM
Wed 24/708:30SOU - LHR
1 stop7h 45mKLM
Deal found 18/4£266
Sat 13/708:40LHR - SOU
1 stop8h 10mKLM
Tue 30/717:20SOU - LHR
1 stop3h 35mKLM
Deal found 18/4£279
Thu 11/720:55LHR - SOU
1 stop11h 05mKLM
Sat 27/708:30SOU - LHR
1 stop9h 20mKLM
Deal found 18/4£280

Cheap British Airways flights from Heathrow to Portsmouth

Explore cheap flight options specifically provided by British Airways for the route between Heathrow and Portsmouth. 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 899,432 searches. Data last updated 18 April 2024.
Some of the lowest-priced British Airways flights we've found at this time heading from London to Portsmouth. Deals frequently update to provide users with more options.
Tue 3/920:45LHR - SOU
1 stop11h 15mBritish Airways
Thu 5/908:30SOU - LHR
1 stop9h 50mBritish Airways
Deal found 16/4£358
Tue 3/920:45LHR - SOU
1 stop11h 15mBritish Airways
Thu 5/908:30SOU - LHR
1 stop9h 50mBritish Airways
Deal found 17/4£359
Tue 30/709:15LHR - SOU
1 stop9h 55mBritish Airways
Sun 11/813:10SOU - LHR
2 stops8h 40mBritish Airways
Deal found 17/4£384
Tue 3/913:15LHR - SOU
1 stop5h 55mBritish Airways
Thu 5/916:15SOU - LHR
2 stops5h 40mBritish Airways
Deal found 17/4£407
Wed 15/515:00LHR - SOU
1 stop4h 10mBritish Airways
Wed 22/512:35SOU - LHR
1 stop4h 20mBritish Airways
Deal found 18/4£449

Cheap Heathrow to Portsmouth flights in April & May 2024

Find cheap flight options from Heathrow to Portsmouth specifically for the months of April and May 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 899,432 searches. Prices were last updated on 18 April 2024.
These are some of the most attractive deals on flights from London to Portsmouth in 2024. Check back in a little while for more flight options.
Wed 15/520:55LHR - SOU
1 stop10h 30mKLM
Wed 22/507:55SOU - LHR
1 stop9h 40mKLM
Deal found 17/4£213
Wed 15/514:45LHR - SOU
1 stop4h 25mKLM
Wed 22/507:55SOU - LHR
1 stop9h 40mKLM
Deal found 18/4£226
Thu 9/508:40LHR - SOU
1 stop8h 10mKLM
Thu 16/507:55SOU - LHR
1 stop5h 55mKLM
Deal found 18/4£238
Wed 15/520:10LHR - SOU
1 stop13h 00mMultiple Airlines
Wed 22/509:00SOU - LHR
2 stops12h 35mMultiple Airlines
Deal found 17/4£263
Wed 15/520:10LHR - SOU
1 stop13h 00mMultiple Airlines
Wed 22/509:00SOU - LHR
3 stops24h 20mMultiple Airlines
Deal found 17/4£276
Sat 25/519:40LHR - SOU
1 stop13h 30mMultiple Airlines
Sun 2/620:20SOU - LHR
3 stops21h 20mMultiple Airlines
Deal found 18/4£350
Wed 15/509:55LHR - SOU
1 stop6h 55mKLM
Wed 22/507:55SOU - LHR
1 stop9h 40mKLM
Deal found 17/4£380
Fri 10/507:25LHR - SOU
1 stop5h 10mMultiple Airlines
Sat 11/509:15SOU - LHR
1 stop11h 55mMultiple Airlines
Deal found 18/4£383
Sat 25/519:40LHR - SOU
1 stop13h 30mAer Lingus
Sun 2/620:00SOU - LHR
1 stop14h 20mAer Lingus
Deal found 18/4£404

Heathrow to Portsmouth 2024 flight deals

Discover exclusive flight deals for travel between Heathrow and Portsmouth in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 899,432 searches. Data last updated 18 April 2024.
These are some of the most attractive deals on flights from London to Portsmouth in 2024. Check back in a little while for more flight options.
Mon 15/720:55LHR - SOU
1 stop11h 05mKLM
Tue 30/717:20SOU - LHR
1 stop3h 35mKLM
Deal found 18/4£201
Wed 15/520:55LHR - SOU
1 stop10h 30mKLM
Wed 22/507:55SOU - LHR
1 stop9h 40mKLM
Deal found 17/4£213
Mon 15/720:55LHR - SOU
1 stop11h 05mKLM
Mon 29/717:20SOU - LHR
1 stop3h 35mKLM
Deal found 18/4£226
Thu 9/508:40LHR - SOU
1 stop8h 10mKLM
Thu 16/507:55SOU - LHR
1 stop5h 55mKLM
Deal found 18/4£238
Mon 15/720:55LHR - SOU
1 stop11h 05mKLM
Sun 28/717:20SOU - LHR
1 stop3h 35mKLM
Deal found 18/4£241
Wed 10/708:40LHR - SOU
1 stop8h 10mKLM
Tue 30/717:20SOU - LHR
1 stop3h 35mKLM
Deal found 18/4£258
Wed 15/520:10LHR - SOU
1 stop13h 00mMultiple Airlines
Wed 22/509:00SOU - LHR
2 stops12h 35mMultiple Airlines
Deal found 17/4£263
Thu 11/720:55LHR - SOU
1 stop11h 05mKLM
Wed 24/708:30SOU - LHR
1 stop7h 45mKLM
Deal found 18/4£266
Wed 15/520:10LHR - SOU
1 stop13h 00mMultiple Airlines
Wed 22/509:00SOU - LHR
3 stops24h 20mMultiple Airlines
Deal found 17/4£276

One-way flights to Portsmouth from Heathrow

Search for one-way flight options from Heathrow to Portsmouth. 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 899,432 searches. Data last updated 18 April 2024.
Some of the best available deals we've found on one-way flights from London to Portsmouth. For those needing a return trip from London, there is a search form available above.
Mon 13/521:10LHR - SOU
1 stop12h 00mAer Lingus
Deal found 17/4£100
Mon 13/506:45LHR - SOU
2 stops7h 35mMultiple Airlines
Deal found 17/4£157
Sat 31/821:50LHR - SOU
1 stop11h 35mBritish Airways
Deal found 17/4£181

Find flights from Heathrow to Portsmouth within your budget

Customise your flight search to find flights from Heathrow to Portsmouth 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 899,432 searches. Data last updated 18 April 2024.

Fly from

Any airport

Fly to

Any airport

Budget

£201 - £404

Route

Depart

Return

Price

London HeathrowSouthampton Eastleigh

LHR - SOU

LHRSOU

London Heathrow

Mon 15/7

1 stop11h 05m

Southampton Eastleigh

Tue 30/7

1 stop3h 35m

£201

London HeathrowSouthampton Eastleigh

LHR - SOU

LHRSOU

London Heathrow

Wed 15/5

1 stop10h 30m

Southampton Eastleigh

Wed 22/5

1 stop9h 40m

£213

London HeathrowSouthampton Eastleigh

LHR - SOU

LHRSOU

London Heathrow

Mon 15/7

1 stop11h 05m

Southampton Eastleigh

Mon 29/7

1 stop3h 35m

£226

London HeathrowSouthampton Eastleigh

LHR - SOU

LHRSOU

London Heathrow

Thu 9/5

1 stop8h 10m

Southampton Eastleigh

Thu 16/5

1 stop5h 55m

£238

London HeathrowSouthampton Eastleigh

LHR - SOU

LHRSOU

London Heathrow

Mon 15/7

1 stop11h 05m

Southampton Eastleigh

Sat 27/7

1 stop9h 20m

£241

London HeathrowSouthampton Eastleigh

LHR - SOU

LHRSOU

London Heathrow

Wed 15/5

1 stop13h 00m

Southampton Eastleigh

Wed 22/5

2 stops12h 35m

£263

London HeathrowSouthampton Eastleigh

LHR - SOU

LHRSOU

London Heathrow

Wed 15/5

1 stop13h 00m

Southampton Eastleigh

Wed 22/5

3 stops24h 20m

£276

London HeathrowSouthampton Eastleigh

LHR - SOU

LHRSOU

London Heathrow

Tue 3/9

1 stop11h 15m

Southampton Eastleigh

Thu 5/9

1 stop9h 50m

£358

London HeathrowSouthampton Eastleigh

LHR - SOU

LHRSOU

London Heathrow

Sat 25/5

1 stop13h 30m

Southampton Eastleigh

Sun 2/6

1 stop14h 20m

£404

Flights are sorted by cheapest first

Deals found on 18/4

When is the cheapest time to fly from London Heathrow Airport to Portsmouth?

Use this chart to determine the cheapest time to fly return from Heathrow to Portsmouth. Price data was last updated on 14 April 2024.
Morning
Midday
Afternoon
Evening
All times are departure.
Travellers seeking maximum savings on their London Heathrow Airport to Portsmouth flight should consider departing on Friday mornings when fares are most often at their lowest. Friday mornings flights should be avoided if possible as fares are typically the most expensive at this time.
Search Deals

Average price of flights to Portsmouth by month

Plan your trip from Heathrow to Portsmouth by taking into account the cheapest months to travel. The average price of a one-way flight from Heathrow to Portsmouth is currently £146 while a return flight costs £269. Price data was last updated on 14 April 2024.

Currently, January is the cheapest month in which you can book a flight from London Heathrow Airport to Portsmouth (average of £111). Flying from London Heathrow Airport to Portsmouth in July is currently the most expensive (average of £173). 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.

January

£89

February

£100

March

£96

April

£103

May

£111

June

£136

July

£139

August

£116

September

£111

October

£130

November

£92

December

£97

Temperature and rainfall in Portsmouth by month

Plan your trip to Portsmouth by taking into account the average temperature and rainfall totals by month.

LON

Temperature

4 - 17 °C

Reviews of airlines servicing Portsmouth

Get insights into the airlines that provide service to Portsmouth. 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 Portsmouth. Reviews last updated 18 April 2024.
To help decide which airline to fly from London to Portsmouth, see what other customers have to say about KLM and British Airways. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
7.9
Good
1,646 reviews

Food

7.3

Boarding

7.8

Entertainment

7.3

Overall

7.9

Crew

8.4

Comfort

7.6

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.

7.9
Good
1,646 reviews
7.9
Good
1,646 reviews

Food

7.3

Boarding

7.8

Entertainment

7.3

Overall

7.9

Crew

8.4

Comfort

7.6

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.

7.2
Good
1,358 reviews
7.9
Good
1,646 reviews

Food

7.3

Boarding

7.8

Entertainment

7.3

Overall

7.9

Crew

8.4

Comfort

7.6

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.

6.9
Okay
6,935 reviews
7.9
Good
1,646 reviews

Food

7.3

Boarding

7.8

Entertainment

7.3

Overall

7.9

Crew

8.4

Comfort

7.6

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 Heathrow to Portsmouth. 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 London Heathrow Airport to Portsmouth for under £200 on Cheapflights?

    Yes, there are multiple flights from London Heathrow Airport to Portsmouth for under £200. The cheapest flight booked recently is on KLM for just £201, but on average you can expect to pay £298.

  • What does LHR to LHR mean?

    This is defined as London Heathrow Airport (LHR) and London Heathrow Airport (LHR). Codes like London Heathrow Airport are often used to just call airports uniquely. 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 Heathrow to Portsmouth that include extra baggage allowance?

    The amount of baggage you can bring on your Heathrow to Portsmouth 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 Heathrow to Portsmouth with specific airlines?

    Yes, Cheapflights allows you to browse and filter Heathrow to Portsmouth 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 Heathrow to Portsmouth that include hotel bookings?

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

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

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

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

    Yes. Cheapflights offers flight deals from Heathrow to Portsmouth 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 Heathrow to Portsmouth that allow pets onboard?

    Many airlines flying from Heathrow to Portsmouth 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 Heathrow to Portsmouth?

    Yes, you can often find last-minute deals on Heathrow to Portsmouth 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 London Heathrow Airport to Portsmouth flight deals updated?

    The London Heathrow Airport to Portsmouth flight deals you see on this page were last updated on 18/4.

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.

Search flights from Heathrow to Portsmouth by cabin class

Find flights from Heathrow to Portsmouth, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Hourly flight availability from Heathrow to Portsmouth

Find hourly flight availability from Heathrow to Portsmouth. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 18 April 2024.
10%of flight departuresEarly morningMidnight to 6 am
36%of flight departuresMorning6 am to noon
34%of flight departuresAfternoonNoon to 6 pm
20%of flight departuresEvening6 pm to midnight
Midnight
6 AM
Midday
6 PM

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 Heathrow to Portsmouth?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Portsmouth from Heathrow today with Cheapflights!

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

Cheapflights simply makes it quick and affordable to book flights from Heathrow to Portsmouth by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

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

Need flexible booking options for your flight to Portsmouth from Heathrow? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

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

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Portsmouth from Heathrow today and book when prices fit your budget.

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.