Find flights
When to book
FAQs

Cheap flights from Portsmouth to Irvine from £482

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 19/4. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — LAX
12 Apr — 19 Apr1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Portsmouth to Irvine

Enter your travel dates to find the best prices.

Cheapest flights from Portsmouth to Irvine
Explore the most affordable flight options available from Portsmouth to Irvine. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 13 March 2026.

Sun 19/409:20
SOU
-
LAX
1 stop17h 05m
Aer Lingus
Sun 26/420:10
LAX
-
SOU
1 stop15h 20m
Aer Lingus
Deal found 9/3£482
Thu 23/420:00
SOU
-
LAX
1 stop30h 25m
Aer Lingus
Thu 30/420:10
LAX
-
SOU
1 stop28h 30m
Aer Lingus
Deal found 9/3£592
Sun 11/1017:20
SOU
-
LAX
1 stop33h 05m
Multiple Airlines
Tue 20/1020:10
LAX
-
SOU
1 stop15h 20m
Multiple Airlines
Deal found 9/3£606
Sun 19/420:00
SOU
-
LAX
2 stops34h 00m
Multiple Airlines
Sun 26/420:10
LAX
-
SOU
1 stop15h 20m
Multiple Airlines
Deal found 10/3£625

Find flight deals from Portsmouth to Irvine

Keep the following information in mind while searching for Portsmouth to Irvine flight deals. Data was last updated 13 March 2026.

Round-trip from

£482

Popular in

July

Cheapest in

January

Average price

£542
Aer Lingus
  • Aer Lingus
  • 19/4-26/4
  • 2 total stops
  • 32h 25m total
  • Portsmouth to Irvine
Search Deals
Highest demand for flights based on searches. 31% potential increase in price (£224 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 7% potential price decrease (£34 potential savings vs. average return price).
Search Deals
Average for round-trip flights in March 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Portsmouth to Irvine 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 13 March 2026.
Use the filters below to find and compare flights from Portsmouth to Irvine that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight
Fastest return journey

SouthamptonLos Angeles

SOU - LAX

SOULAX

Southampton Eastleigh

Mon 7/9

09:20-18:25

1 stop17h 05m

Los Angeles Los Angeles

Mon 28/9

20:10-19:30

1 stop15h 20m

£664

SouthamptonLos Angeles

SOU - LAX

SOULAX

Southampton Eastleigh

Sun 26/4

20:00-18:25

1 stop30h 25m

Los Angeles Los Angeles

Sun 3/5

23:41-08:40

2 stops24h 59m

£682

SouthamptonLos Angeles

SOU - LAX

SOULAX

Southampton Eastleigh

Sun 26/4

20:00-21:56

2 stops33h 56m

Los Angeles Los Angeles

Sun 3/5

23:05-19:30

2 stops36h 25m

£685

SouthamptonLos Angeles

SOU - LAX

SOULAX

Southampton Eastleigh

Mon 6/4

19:55-13:40

2 stops25h 45m

Los Angeles Los Angeles

Mon 27/4

17:05-20:45

2 stops19h 40m

£695

SouthamptonLos Angeles

SOU - LAX

SOULAX

Southampton Eastleigh

Wed 8/4

06:50-18:15

2 stops19h 25m

Los Angeles Los Angeles

Wed 29/4

20:10-19:30

1 stop15h 20m

£697

SouthamptonLos Angeles

SOU - LAX

SOULAX

Southampton Eastleigh

Tue 1/9

09:15-18:25

1 stop17h 10m

Los Angeles Los Angeles

Tue 8/9

20:10-19:30

1 stop15h 20m

£717

SouthamptonLos Angeles

SOU - LAX

SOULAX

Southampton Eastleigh

Wed 19/8

06:50-18:20

2 stops19h 30m

Los Angeles Los Angeles

Sun 30/8

20:55-08:25

2 stops27h 30m

£731

SouthamptonLos Angeles

SOU - LAX

SOULAX

Southampton Eastleigh

Sat 22/8

19:40-18:20

2 stops30h 40m

Los Angeles Los Angeles

Tue 1/9

20:55-08:25

2 stops27h 30m

£753

SouthamptonLos Angeles

SOU - LAX

SOULAX

Southampton Eastleigh

Tue 5/5

19:55-13:45

2 stops25h 50m

Los Angeles Los Angeles

Tue 12/5

15:45-17:40

2 stops17h 55m

£761

SouthamptonLos Angeles

SOU - LAX

SOULAX

Southampton Eastleigh

Tue 9/6

08:55-18:20

2 stops17h 25m

Los Angeles Los Angeles

Tue 30/6

20:10-19:30

1 stop15h 20m

£809

Flights are sorted by cheapest return flights first.

Deals found on 8/3

Showing 1-10 of 18 resultsSorted by cheapest first
1
2

Best time to book a flight from Portsmouth to Irvine

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

What is the cheapest month to book a flight from Portsmouth to Irvine?

Currently, September is the cheapest month in which you can book a flight from Portsmouth to Irvine (average of £239). Flying from Portsmouth to Irvine in July is currently the most expensive (average of £387). 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.

What is the cheapest time of day to fly from P0R to IR9?

Find hourly flight availability from Portsmouth to Irvine. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 13 March 2026.

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

Weekly flight availability from Portsmouth to Irvine

Explore weekly flight availability from Portsmouth to Irvine. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 13 March 2026.

The most flights from P0R to IR9 are scheduled on a Monday (50 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (48 on average).

Related info for your journey

Find useful and relevant information for your journey from Portsmouth to Irvine. 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 Portsmouth to Irvine?

    For as low as £664, British Airways can have you in Irvine from Portsmouth in 17h 05m. Airlines will cover a distance of 5434 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • What are the most reliable airlines from Portsmouth to Irvine?

    Consider SriLankan Airlines (90%), Air Canada (88%) or Austrian Airlines (88%) when booking your flight. These represent the most reliable airlines when flying from Portsmouth to Irvine.

  • What are the cheapest flights from Portsmouth to Irvine?

    While on average a flight from Portsmouth to Irvine is generally £2,723, our data shows the cheapest flight currently is £355. When looking at the most popular route, (Southampton Eastleigh - Los Angeles Los Angeles), you can expect to pay £656 for that flight.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Portsmouth to Irvine 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 Portsmouth to Irvine?

    Currently, September is the cheapest month in which you can book a flight from Portsmouth to Irvine (average of £239). Flying from Portsmouth to Irvine in July is currently the most expensive (average of £387). 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

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.

Alternative routes for Portsmouth to Irvine

See prices for flight routes from nearby airports that may be better suited for you.
Heathrow to Los Angeles flights
Heathrow to Las Vegas flights
Heathrow to San Francisco flights
Gatwick to Los Angeles flights
Stansted to Los Angeles flights
London City to Los Angeles flights
Gatwick to Las Vegas flights
Heathrow to Ontario flights
Gatwick to San Francisco flights
Luton to Los Angeles flights
Stansted to San Francisco flights
London City to Las Vegas flights
London City to San Francisco flights
Stansted to Las Vegas flights
Heathrow to San Diego flights
Heathrow to Long Beach flights
Heathrow to Santa Ana flights
Heathrow to San Jose flights
Luton to San Francisco flights
Manchester to Las Vegas flights
Manchester to Los Angeles flights
Luton to Las Vegas flights
Gatwick to San Diego flights
Manchester to San Francisco flights
Manchester to Ontario flights
Edinburgh to Las Vegas flights
Birmingham to Las Vegas flights
London City to San Diego flights
Edinburgh to San Francisco flights
Manchester to Long Beach flights
Edinburgh to Los Angeles flights
Stansted to San Diego flights
Heathrow to Burbank flights
Birmingham to Los Angeles flights
Gatwick to San Jose flights
Newcastle upon Tyne to Las Vegas flights
London City to Santa Ana flights
Southampton to Los Angeles flights
Heathrow to Sacramento flights
Birmingham to San Francisco flights
Gatwick to Ontario flights
Manchester to San Diego flights
Heathrow to Oakland flights
Manchester to Palm Springs flights
Gatwick to Santa Ana flights
Southend to Los Angeles flights
Gatwick to Sacramento flights
Gatwick to Burbank flights
London City to San Jose flights
Manchester to Santa Ana flights

Top 10 airlines flying from Portsmouth to Irvine

Discover the top 10 airlines that operate flights from Portsmouth to Irvine. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 13 March 2026.
AirlineCheapestAverageFlexibilityOn-time
IberiaCheapest£239Average£525FlexibilityNo cancel feeOn-time77%
Search Iberia flights
Norse Atlantic UKCheapest£271Average£507FlexibilityNo cancel feeOn-timeN/A
Search Norse Atlantic UK flights
SWISSCheapest£278Average£552FlexibilityNo cancel feeOn-time79%
Search SWISS flights
DeltaCheapest£309Average£530FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Brussels AirlinesCheapest£334Average£456FlexibilityNo cancel feeOn-timeN/A
Search Brussels Airlines flights
Aer LingusCheapest£335Average£482FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
Virgin AtlanticCheapest£340Average£497FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
Scandinavian AirlinesCheapest£341Average£464FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights
British AirwaysCheapest£346Average£473FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Austrian AirlinesCheapest£352Average£480FlexibilityNo cancel feeOn-time78%
Search Austrian Airlines flights

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 Portsmouth to Irvine?

Cheapflights makes it easy to find Portsmouth to Irvine flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

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

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Portsmouth to Irvine for you. Better yet — we are completely free to use.

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

Certainly. Search results for flights to Irvine from Portsmouth shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

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

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