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£52+ Cheap flights to Portsmouth

— LHR
14 Oct — 21 Oct1
1 adult
1 adult, Economy, 0 bags

Flights to Portsmouth in 2026

Enter your travel dates to find the best prices.

Cheapest flights to Portsmouth

Sun 29/1105:55 -
1 stop9h 40m
Sun 13/1214:00 -
1 stop8h 45m
Deal found 9/9£104
Tue 27/1020:45 -
1 stop12h 00m
Tue 3/1112:15 -
1 stop8h 00m
Deal found 12/9£106
Sat 3/1022:00 -
1 stop14h 05m
Sat 10/1012:15 -
1 stop9h 20m
Deal found 10/9£106
Sat 10/1019:25 -
1 stop12h 30m
Mon 12/1019:20 -
1 stop13h 45m
Deal found 13/9£106
Mon 2/1106:35 -
1 stop5h 20m
Mon 9/1117:55 -
1 stop4h 00m
Deal found 12/9£108
Mon 12/1022:45 -
1 stop9h 55m
Mon 19/1020:40 -
1 stop10h 40m
Deal found 13/9£110
Mon 12/1006:15 -
1 stop5h 35m
Mon 19/1019:20 -
1 stop13h 45m
Deal found 13/9£112
Sun 11/1008:40 -
1 stop3h 25m
Sun 18/1012:35 -
1 stop10h 45m
Deal found 13/9£115
Sat 10/1009:25 -
1 stop6h 50m
Mon 12/1020:40 -
1 stop10h 40m
Deal found 13/9£115
Mon 2/1121:30 -
1 stop11h 20m
Mon 9/1119:25 -
1 stop13h 45m
Deal found 12/9£115
Mon 2/1106:10 -
1 stop5h 45m
Mon 9/1112:35 -
1 stop9h 35m
Deal found 11/9£116
Sat 17/1022:00 -
1 stop10h 35m
Tue 20/1013:25 -
1 stop9h 25m
Deal found 10/9£117

Find flight deals to Portsmouth

One-way from

£53
19/9-31/12
  • 19/9-31/12
  • 1 total stop
  • 12h 25m total
  • London to Portsmouth
Search Deals

Cheapflights Fare Finder

 
Use the filters below to find and compare flights to Portsmouth that are best for you.

Fly from

Route

Depart

Return

Price

Cheapest return flight

LondonSouthampton

LTN London Luton - SOU Southampton Eastleigh

LTNSOU

London Luton

Thu 8/10

05:40-08:45

1 stop27h 05m

Southampton Eastleigh

Wed 31/12

00:00-00:00

Nonstop0h 00m

£52

LondonSouthampton

LTN London Luton - SOU Southampton Eastleigh

LTNSOU

London Luton

Sat 19/9

19:30-07:55

1 stop12h 25m

Southampton Eastleigh

Wed 31/12

00:00-00:00

Nonstop0h 00m

£53

LondonSouthampton

STN London Stansted - SOU Southampton Eastleigh

STNSOU

London Stansted

Thu 8/10

21:55-08:45

1 stop10h 50m

Southampton Eastleigh

Wed 31/12

00:00-00:00

Nonstop0h 00m

£57

LondonSouthampton

LTN London Luton - SOU Southampton Eastleigh

LTNSOU

London Luton

Fri 9/10

22:15-11:45

1 stop13h 30m

Southampton Eastleigh

Wed 31/12

00:00-00:00

Nonstop0h 00m

£58

LondonSouthampton

LGW London Gatwick - SOU Southampton Eastleigh

LGWSOU

London Gatwick

Thu 8/10

15:25-08:45

1 stop17h 20m

Southampton Eastleigh

Wed 31/12

00:00-00:00

Nonstop0h 00m

£60

LondonSouthampton

STN London Stansted - SOU Southampton Eastleigh

STNSOU

London Stansted

Sat 19/9

18:30-07:55

1 stop13h 25m

Southampton Eastleigh

Wed 31/12

00:00-00:00

Nonstop0h 00m

£62

LondonSouthampton

LHR London Heathrow - SOU Southampton Eastleigh

LHRSOU

London Heathrow

Thu 8/10

20:50-08:45

1 stop11h 55m

Southampton Eastleigh

Wed 31/12

00:00-00:00

Nonstop0h 00m

£64

LondonSouthampton

STN London Stansted - SOU Southampton Eastleigh

STNSOU

London Stansted

Mon 12/10

22:45-08:40

1 stop9h 55m

Southampton Eastleigh

Wed 31/12

00:00-00:00

Nonstop0h 00m

£64

LondonSouthampton

LGW London Gatwick - SOU Southampton Eastleigh

LGWSOU

London Gatwick

Sat 19/9

18:40-07:55

1 stop13h 15m

Southampton Eastleigh

Wed 31/12

00:00-00:00

Nonstop0h 00m

£67

LondonSouthampton

LGW London Gatwick - SOU Southampton Eastleigh

LGWSOU

London Gatwick

Fri 9/10

17:50-11:45

1 stop17h 55m

Southampton Eastleigh

Wed 31/12

00:00-00:00

Nonstop0h 00m

£69

Flights are sorted by cheapest return flights first.

Deals found on 9/9

Showing 1-10 of 60 resultsSorted by cheapest first
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Best time to book a flight to Portsmouth

Have a flexible travel schedule? Discover the best time to fly to Portsmouth with our price prediction graph.
Estimated return price

Cheapflights Insights

Everything you need to know about your flight to Portsmouth

How long is the flight to Portsmouth?

On average, a flight from London to Portsmouth takes 4 hours 29 minutes. Flights to Portsmouth from other popular cities in United Kingdom will vary in length. Below are a few examples of popular routes and their flight times.

Rainfall in Portsmouth 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

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).

FAQs about flying to Portsmouth

Getting around Portsmouth

The are several excellent local bus services which cover the city centre, Portsea Island, Southsea and numerous destinations in and around the city.  There are good local taxi firms, and you’ll also find licensed taxis at the airport and in the city centre which can simply be flagged down on the street.

Getting from the Airport to the City

Travellers booking flights to Portsmouth will most likely fly to Southampton Airport (SOU), which is the closest airport to the city, just 20 miles (32 km) from the centre of Portsmouth.  Take the train from Southampton Airport Parkway and change to a Portsmouth bound service at Southampton Central or at Eastleigh.  There are also taxis available from outside the terminal, and set fares to the city are not overly expensive.

  • Can I find cheaper flights to Portsmouth if I am willing to have stopovers?

    Yes, flights with stopovers are often cheaper than direct flights. Keep an eye out for flight deals to Portsmouth on Cheapflights that require 1 or 2 stops for potential cost savings.

  • What is the best airline to fly to Portsmouth?

    Based on reviews from Cheapflights users, easyJet is rated the highest out of the airlines that fly to Portsmouth.

  • How much is a return flight to Portsmouth?

    A return flight to Portsmouth will typically cost around £101, however they can be found for as little as £33.

  • Where does the fastest flight to Portsmouth depart from?

    For those looking to save time traveling to Portsmouth, Manchester offers the quickest one-way flight (1 hour 0 minutes).

  • Does London Heathrow have car hire?

    Yes. Those touching down at London Heathrow can take advantage of the car hire services offered upon their arrival.

  • Are there hotels close to London Heathrow?

    Yes. London Heathrow has hotels nearby for those requiring accommodations. Aerotel London Heathrow is the closest property to London Heathrow (0.0 mi away from London Heathrow).

See more FAQs

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