Find flights
Travel Guide

£61+ Cheap flights to Portsmouth

— LHR
17 Sep — 24 Sep1
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

Tue 29/919:20 -
1 stop14h 55m
Tue 6/1013:25 -
1 stop9h 25m
Deal found 15/8£102
Sat 19/918:30 -
1 stop13h 25m
Mon 28/919:20 -
1 stop12h 10m
Deal found 16/8£105
Tue 15/919:20 -
1 stop14h 55m
Tue 22/913:25 -
1 stop9h 25m
Deal found 16/8£108
Mon 28/922:25 -
1 stop14h 25m
Mon 5/1019:20 -
1 stop15h 15m
Deal found 14/8£110
Sat 19/916:55 -
1 stop15h 00m
Mon 28/920:40 -
1 stop12h 05m
Deal found 16/8£111
Sat 19/918:40 -
1 stop13h 15m
Mon 28/919:20 -
1 stop14h 10m
Deal found 16/8£111
Mon 28/918:40 -
2 stops18h 10m
Mon 5/1019:20 -
1 stop15h 40m
Deal found 14/8£111
Wed 16/918:20 -
1 stop14h 15m
Wed 23/910:45 -
1 stop11h 55m
Deal found 16/8£112
Wed 9/918:20 -
1 stop14h 15m
Wed 16/910:45 -
1 stop11h 55m
Deal found 14/8£115
Tue 29/909:40 -
1 stop9h 50m
Tue 6/1018:10 -
1 stop15h 25m
Deal found 15/8£125
Thu 8/1020:35 -
1 stop12h 10m
Mon 12/1019:20 -
1 stop14h 10m
Deal found 16/8£127
Wed 16/919:20 -
1 stop13h 15m
Wed 23/910:45 -
1 stop7h 45m
Deal found 16/8£129

Find flight deals to Portsmouth

One-way from

£61
1/10
  • 1/10
  • 1 total stop
  • 27h 05m 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

STN London Stansted - SOU Southampton Eastleigh

STNSOU

London Stansted

Tue 29/9

19:20-10:15

1 stop14h 55m

Southampton Eastleigh

Tue 6/10

13:25-22:50

1 stop9h 25m

£102

LondonSouthampton

STN London Stansted - SOU Southampton Eastleigh

STNSOU

London Stansted

Tue 15/9

19:20-10:15

1 stop14h 55m

Southampton Eastleigh

Tue 22/9

13:25-22:50

1 stop9h 25m

£108

LondonSouthampton

STN London Stansted - SOU Southampton Eastleigh

STNSOU

London Stansted

Sat 19/9

18:30-07:55

1 stop13h 25m

Southampton Eastleigh

Mon 28/9

19:20-07:30

1 stop12h 10m

£111

LondonSouthampton

STN London Stansted - SOU Southampton Eastleigh

STNSOU

London Stansted

Mon 28/9

22:25-12:50

1 stop14h 25m

Southampton Eastleigh

Mon 5/10

12:55-23:40

1 stop10h 45m

£113

LondonSouthampton

STN London Stansted - SOU Southampton Eastleigh

STNSOU

London Stansted

Wed 9/9

18:20-08:35

1 stop14h 15m

Southampton Eastleigh

Wed 16/9

10:45-22:40

1 stop11h 55m

£115

LondonSouthampton

LTN London Luton - SOU Southampton Eastleigh

LTNSOU

London Luton

Mon 28/9

08:15-16:50

1 stop8h 35m

Southampton Eastleigh

Mon 5/10

19:20-11:00

1 stop15h 40m

£121

LondonSouthampton

LTN London Luton - SOU Southampton Eastleigh

LTNSOU

London Luton

Tue 29/9

19:50-10:15

2 stops14h 25m

Southampton Eastleigh

Tue 6/10

18:10-09:35

1 stop15h 25m

£122

LondonSouthampton

STN London Stansted - SOU Southampton Eastleigh

STNSOU

London Stansted

Thu 1/10

16:25-08:45

2 stops16h 20m

Southampton Eastleigh

Thu 8/10

11:40-20:20

1 stop8h 40m

£124

LondonSouthampton

LTN London Luton - SOU Southampton Eastleigh

LTNSOU

London Luton

Tue 15/9

19:50-10:15

2 stops14h 25m

Southampton Eastleigh

Tue 22/9

18:10-09:35

1 stop15h 25m

£134

LondonSouthampton

LTN London Luton - SOU Southampton Eastleigh

LTNSOU

London Luton

Wed 9/9

19:20-08:35

1 stop13h 15m

Southampton Eastleigh

Wed 16/9

10:45-22:50

1 stop12h 05m

£139

Flights are sorted by cheapest return flights first.

Deals found on 17/8

Showing 1-10 of 48 resultsSorted by cheapest first
1
2
3
...
5

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 6 hours 58 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 £102, however they can be found for as little as £32.

  • 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 (0 hours 50 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

Browse thousands of different options on Cheapflights for your next trip

Search flights to Portsmouth by cabin class

First Class flights to Portsmouth
Business Class flights to Portsmouth
Prem Economy Class flights to Portsmouth
Economy Class flights to Portsmouth

Fly with Cheapflights

How does Cheapflights help users find flights to Portsmouth?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights to Portsmouth. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

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

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 to Portsmouth.

Can Cheapflights find flights to Portsmouth with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights to Portsmouth flexibly with Cheapflights today.

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

Yes, and it’s super simple to set up Price Alerts. Click the bell icon next to the flight deals above and provide your email address. That’s it!

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.