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Cheap flights from London Heathrow Airport to Portsmouth from £151

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 1/2. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — LHR
22 Dec — 29 Dec1
1 adult

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 858,174 searches. Data last updated 17 December 2024.

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Depart

Return

Price

LondonSouthampton

LHR - SOU

LHRSOU

London Heathrow

Wed 15/1

20:25-08:25

1 stop12h 00m

Southampton Eastleigh

Wed 22/1

17:20-20:50

1 stop3h 30m

£212

LondonSouthampton

LHR - SOU

LHRSOU

London Heathrow

Wed 15/1

20:50-11:55

2 stops15h 05m

Southampton Eastleigh

Thu 16/1

20:10-09:05

1 stop12h 55m

£261

LondonSouthampton

LHR - SOU

LHRSOU

London Heathrow

Mon 30/12

14:10-19:10

1 stop5h 00m

Southampton Eastleigh

Mon 6/1

12:30-16:45

1 stop4h 15m

£476

LondonSouthampton

LHR - SOU

LHRSOU

London Heathrow

Sat 1/2

09:05-14:40

1 stop5h 35m

£151

LondonSouthampton

LHR - SOU

LHRSOU

London Heathrow

Mon 30/12

14:10-19:10

1 stop5h 00m

£250

Flights are sorted by cheapest return flights first.

Deals found on 16/12

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 17 December 2024.

Round-trip from

£212

One-way from

£151
KLM
  • KLM
  • 15/1-22/1
  • 2 total stops
  • 15h 30m total
  • London to Portsmouth
Search Deals
1/2
  • 1/2
  • 1 total stop
  • 5h 35m total
  • London to Portsmouth
Search Deals

Find flight deals from Heathrow to Portsmouth

Cheapest flights from Heathrow to Portsmouth
Explore the most affordable flight options available from Heathrow to Portsmouth. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 17 December 2024.

Fri 27/1220:25LHR - SOU
1 stop12h 25mKLM
Mon 30/1217:20SOU - LHR
1 stop3h 30mKLM
Deal found 16/12£414
Mon 30/1214:10LHR - SOU
1 stop5h 00mBritish Airways
Mon 6/112:30SOU - LHR
1 stop4h 15mBritish Airways
Deal found 16/12£476

Best time to book a flight from Heathrow to Portsmouth

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

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

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

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 17 December 2024.

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.

Rainfall in Portsmouth by month

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

In terms of precipitation, rainfall in Portsmouth ranges from 25.0 - 76.0 inches per month. December is typically the wettest month, when rainfall can reach 76.0 mm. July is typically the driest time to visit Portsmouth when rainfall is around 25.0 mm.

Temperature in Portsmouth by month

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

If weather is an important factor for your trip to Portsmouth, 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 18.0 C. Travellers hoping to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 4.0 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 17 December 2024.
KLM
7.8
Good
1,351 reviews
Check prices

Food

7.3

Comfort

7.7

Overall

7.8

Crew

8.4

Entertainment

7.2

Boarding

7.9

Reviews

1 / 10

Flight was late do to issues with loading stuff. One of the two bathrooms in business class was not working. WiFi did not work 80% of the time. My bag came out last even though it had a priority tag

KLM
7.8
Good
1,351 reviews
KLM
7.8
Good
1,351 reviews
Check prices

Food

7.3

Comfort

7.7

Overall

7.8

Crew

8.4

Entertainment

7.2

Boarding

7.9

Reviews

1 / 10

Flight was late do to issues with loading stuff. One of the two bathrooms in business class was not working. WiFi did not work 80% of the time. My bag came out last even though it had a priority tag

British Airways
6.6
Okay
6,821 reviews
KLM
7.8
Good
1,351 reviews
Check prices

Food

7.3

Comfort

7.7

Overall

7.8

Crew

8.4

Entertainment

7.2

Boarding

7.9

Reviews

1 / 10

Flight was late do to issues with loading stuff. One of the two bathrooms in business class was not working. WiFi did not work 80% of the time. My bag came out last even though it had a priority tag

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 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.

  • What is the cheapest month to book a flight from London Heathrow Airport to Portsmouth?

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

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Alternative routes for Heathrow to Portsmouth

See prices for flight routes from nearby airports that may be better suited for you.
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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.

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