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Cheap flights from London Luton Airport to Portsmouth from £81

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 21/3. Fares are subject to change and may not be available on all flights or dates of travel.
LTN — LHR
9 Mar — 16 Mar1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Luton to Portsmouth

Enter your travel dates to find the best prices.

Cheapest flights from Luton to Portsmouth
Explore the most affordable flight options available from Luton to Portsmouth. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 7 February 2026.

Mon 23/319:05
LTN
-
SOU
2 stops13h 45m
Multiple Airlines
Mon 30/320:40
SOU
-
LTN
1 stop12h 05m
Multiple Airlines
Deal found 6/2£146
Mon 23/211:35
LTN
-
SOU
1 stop21h 15m
easyJet
Wed 25/209:25
SOU
-
LTN
1 stop5h 25m
easyJet
Deal found 7/2£152
Mon 23/206:00
LTN
-
SOU
1 stop9h 35m
Multiple Airlines
Wed 25/209:25
SOU
-
LTN
1 stop5h 25m
Multiple Airlines
Deal found 6/2£153
Sat 14/321:00
LTN
-
SOU
1 stop11h 45m
Multiple Airlines
Sun 15/318:20
SOU
-
LTN
2 stops17h 25m
Multiple Airlines
Deal found 5/2£160
Sat 7/321:00
LTN
-
SOU
1 stop11h 45m
Multiple Airlines
Sun 8/319:00
SOU
-
LTN
1 stop12h 50m
Multiple Airlines
Deal found 7/2£161
Sat 21/321:00
LTN
-
SOU
1 stop11h 45m
Multiple Airlines
Sat 28/309:30
SOU
-
LTN
1 stop5h 55m
Multiple Airlines
Deal found 4/2£170
Fri 20/205:50
LTN
-
SOU
1 stop26h 55m
Multiple Airlines
Tue 24/209:20
SOU
-
LTN
1 stop7h 35m
Multiple Airlines
Deal found 5/2£182
Sun 22/321:50
LTN
-
SOU
2 stops19h 25m
Multiple Airlines
Sun 29/312:35
SOU
-
LTN
1 stop10h 45m
Multiple Airlines
Deal found 5/2£191

Find flight deals from Luton to Portsmouth

Keep the following information in mind while searching for Luton to Portsmouth flight deals. Data was last updated 7 February 2026.

Round-trip from

£146

One-way from

£81
easyJet
  • easyJet
  • 23/3-30/3
  • 3 total stops
  • 25h 50m total
  • London to Portsmouth
Search Deals
21/3
  • 21/3
  • 1 total stop
  • 16h 05m total
  • London to Portsmouth
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Luton 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 7 February 2026.
Use the filters below to find and compare flights from London Luton Airport to Portsmouth that are best for you.

Fly from

Luton

Fly to

Portsmouth

Route

Depart

Return

Price

LondonSouthampton

LTN - SOU

LTNSOU

London Luton

Mon 23/2

11:35-08:50

1 stop21h 15m

Southampton Eastleigh

Wed 25/2

09:25-14:50

1 stop5h 25m

£152

LondonSouthampton

LTN - SOU

LTNSOU

London Luton

Sat 14/3

21:00-08:45

1 stop11h 45m

Southampton Eastleigh

Sun 15/3

18:20-08:15

1 stop13h 55m

£152

LondonSouthampton

LTN - SOU

LTNSOU

London Luton

Mon 23/2

06:00-15:35

1 stop9h 35m

Southampton Eastleigh

Wed 25/2

09:25-14:50

1 stop5h 25m

£153

LondonSouthampton

LTN - SOU

LTNSOU

London Luton

Mon 23/3

19:05-08:50

2 stops13h 45m

Southampton Eastleigh

Mon 30/3

12:25-22:55

2 stops10h 30m

£155

LondonSouthampton

LTN - SOU

LTNSOU

London Luton

Sat 7/3

21:00-08:45

1 stop11h 45m

Southampton Eastleigh

Sun 8/3

19:00-07:50

1 stop12h 50m

£161

LondonSouthampton

LTN - SOU

LTNSOU

London Luton

Sat 21/3

21:00-08:45

1 stop11h 45m

Southampton Eastleigh

Sat 28/3

09:30-15:25

1 stop5h 55m

£170

LondonSouthampton

LTN - SOU

LTNSOU

London Luton

Fri 20/2

05:50-08:45

1 stop26h 55m

Southampton Eastleigh

Tue 24/2

09:20-16:55

1 stop7h 35m

£182

LondonSouthampton

LTN - SOU

LTNSOU

London Luton

Sat 21/3

16:40-08:45

1 stop16h 05m

£81

LondonSouthampton

LTN - SOU

LTNSOU

London Luton

Wed 17/6

15:15-08:35

2 stops17h 20m

£87

LondonSouthampton

LTN - SOU

LTNSOU

London Luton

Sun 22/3

13:10-08:45

1 stop19h 35m

£96

Flights are sorted by cheapest return flights first.

Deals found on 3/2

Best time to book a flight from Luton to Portsmouth

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

Cheapflights Insights

Everything you need to know about your flight from London Luton Airport to Portsmouth

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

Find hourly flight availability from Luton 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 7 February 2026.

When flying from London Luton Airport to Portsmouth, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Related info for your journey

Find useful and relevant information for your journey from Luton to Portsmouth. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from London Luton Airport to Portsmouth?

    Departing from London Luton Airport to Portsmouth will take you 21h 15m. The distance between London Luton Airport and Portsmouth is about 77 mi.

  • What are the cheapest flights from London Luton Airport to Portsmouth?

    The cheapest flight price from London Luton Airport to Portsmouth is £6,781. On average you can expect to pay £8,492. The most popular route, (London Luton - Southampton Eastleigh), can usually be booked for £146.

  • Can I find deals for flights from Luton to Portsmouth that include hotel bookings?

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

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

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

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

    Yes. Cheapflights offers flight deals from Luton 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.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Luton to Portsmouth

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Fly with Cheapflights

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How does Cheapflights help users find flights from Luton to Portsmouth?

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Why should you use Cheapflights to find cheap flight tickets from Luton 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 from Luton to Portsmouth.

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

Need flexible booking options for your flight to Portsmouth from Luton? 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 Luton to Portsmouth become cheaper?

Yes! Start tracking prices for Luton to Portsmouth flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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