How long is the flight from Portsmouth to Irvine?

For as low as £468, British Airways can have you in Irvine from Portsmouth in 14h 05m. Airlines will cover a distance of 5434 mi.

In terms of precipitation, rainfall in Irvine ranges from 0.0 - 87.0 inches per month. February is typically the wettest month, when rainfall can reach 87.0 mm. July is typically the driest time to visit Irvine when rainfall is around 0.0 mm.

If weather is an important factor for your trip to Irvine, 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 23.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 14.0 C).

What are the cheapest flights from Portsmouth to Irvine?

While on average a flight from Portsmouth to Irvine is generally £2,620, our data shows the cheapest flight currently is £339. When looking at the most popular route, (Southampton Eastleigh - Los Angeles), you can expect to pay £478 for that flight.

What are the most reliable airlines from Portsmouth to Irvine?

Consider SriLankan Airlines (94%), Air Canada (88%) or Austrian Airlines (88%) when booking your flight. These represent the most reliable airlines when flying from Portsmouth to Irvine.

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.

£284+ Flights from Portsmouth to Irvine

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 22 January 2026.

Wed 4/212:25

SOU

LAX

1 stop14h 05m

British Airways

Wed 11/220:15

LAX

SOU

1 stop15h 25m

British Airways

Deal found 21/1£468

Thu 5/220:10

SOU

LAX

1 stop30h 20m

British Airways

Sun 8/220:15

LAX

SOU

1 stop15h 25m

British Airways

Deal found 19/1£472

Sun 8/309:30

SOU

LAX

1 stop17h 00m

British Airways

Sun 15/321:15

LAX

SOU

1 stop15h 25m

British Airways

Deal found 21/1£480

Thu 26/209:30

SOU

LAX

1 stop17h 00m

British Airways

Thu 5/320:15

LAX

SOU

1 stop15h 25m

British Airways

Deal found 21/1£482

Fri 30/117:35

SOU

LAX

2 stops37h 46m

KLM

Thu 5/206:25

LAX

SOU

2 stops18h 00m

KLM

Deal found 20/1£487

Sun 11/1009:10

SOU

LAX

1 stop17h 15m

British Airways

Tue 20/1020:10

LAX

SOU

1 stop28h 30m

British Airways

Deal found 20/1£515

Best flights from Portsmouth to Irvine
Discover carefully curated flight deals from Portsmouth to Irvine that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 22 January 2026.

Wed 4/212:25

SOU

LAX

1 stop14h 05m

British Airways

Wed 11/220:15

LAX

SOU

1 stop15h 25m

British Airways

Deal found 21/1£468

Fri 27/217:35

SOU

LAX

1 stop26h 10m

Virgin Atlantic

Sat 7/306:25

LAX

SOU

2 stops18h 25m

Virgin Atlantic

Deal found 22/1£533

Fri 27/217:35

SOU

LAX

1 stop26h 10m

Multiple Airlines

Sat 7/313:45

LAX

SOU

1 stop34h 35m

Multiple Airlines

Deal found 22/1£538

Thu 5/220:10

SOU

LAX

1 stop30h 20m

British Airways

Sun 8/220:15

LAX

SOU

1 stop15h 25m

British Airways

Deal found 19/1£472

Sun 8/309:30

SOU

LAX

1 stop17h 00m

British Airways

Sun 15/321:15

LAX

SOU

1 stop15h 25m

British Airways

Deal found 21/1£480

Wed 22/409:10

SOU

LAX

1 stop17h 15m

British Airways

Wed 13/520:10

LAX

SOU

1 stop15h 20m

British Airways

Deal found 21/1£502

Last-minute flights from Portsmouth to Irvine
Discover last-minute flight deals from Portsmouth to Irvine. Data last updated 22 January 2026 and is based on user searches.

Fri 30/117:35

SOU

LAX

2 stops37h 46m

KLM

Thu 5/206:25

LAX

SOU

2 stops18h 00m

KLM

Deal found 20/1£487

Fri 30/117:35

SOU

LAX

2 stops33h 18m

Multiple Airlines

Thu 5/213:45

LAX

SOU

1 stop19h 20m

Multiple Airlines

Deal found 20/1£526

Wed 4/212:25

SOU

LAX

1 stop14h 05m

British Airways

Wed 11/220:15

LAX

SOU

1 stop15h 25m

British Airways

Deal found 21/1£468

Thu 5/220:10

SOU

LAX

1 stop30h 20m

British Airways

Sun 8/220:15

LAX

SOU

1 stop15h 25m

British Airways

Deal found 19/1£472

Thu 26/209:30

SOU

LAX

1 stop17h 00m

British Airways

Thu 5/320:15

LAX

SOU

1 stop15h 25m

British Airways

Deal found 21/1£482

Fri 27/208:50

SOU

LAX

2 stops22h 23m

Virgin Atlantic

Sat 7/305:40

LAX

SOU

2 stops27h 35m

Virgin Atlantic

Deal found 22/1£527

One-way flights from Portsmouth to Irvine
Search for one-way flight options from Portsmouth to Irvine. Find affordable one-way fares based on user searches. Data last updated 22 January 2026.

Tue 28/413:25

SOU

LAX

2 stops36h 45m

Multiple Airlines

Deal found 19/1£284

Thu 30/409:25

SOU

LAX

2 stops40h 45m

Multiple Airlines

Deal found 19/1£345

Thu 30/417:05

SOU

LAX

1 stop33h 20m

Aer Lingus

Deal found 19/1£474

Mon 30/314:25

SOU

LAX

2 stops31h 20m

British Airways

Deal found 19/1£533

Mon 15/619:55

SOU

LAX

2 stops25h 50m

British Airways

Deal found 22/1£546

Mon 22/608:55

SOU

LAX

2 stops34h 35m

British Airways

Deal found 20/1£557

Tue 23/608:55

SOU

LAX

2 stops17h 30m

British Airways

Deal found 20/1£558

Tue 9/606:50

SOU

LAX

2 stops19h 35m

British Airways

Deal found 21/1£559

Find flight deals from Portsmouth to Irvine

Round-trip from	£468
One-way from	£284
Popular in	July
Cheapest in	February
Average price	£437

British Airways
4/2-11/2
2 total stops
29h 30m total
Portsmouth to Irvine

Search Deals

28/4
2 total stops
36h 45m total
Portsmouth to Irvine

Search Deals

Highest demand for flights based on searches. 31% potential increase in price (£223 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 January 2026

Search Deals

Fly from

Fly to

Route

Depart

Return

Price

SouthamptonLos Angeles

SOU - LAX

SOULAX

Southampton Eastleigh

Wed 4/2

12:25-18:30

1 stop14h 05m

Los Angeles

Wed 11/2

20:15-19:40

1 stop15h 25m

£468

SouthamptonLos Angeles

SOU - LAX

SOULAX

Southampton Eastleigh

Thu 5/2

20:10-18:30

1 stop30h 20m

Los Angeles

Sun 8/2

20:15-19:40

1 stop15h 25m

£472

SouthamptonLos Angeles

SOU - LAX

SOULAX

Southampton Eastleigh

Sun 8/3

09:30-18:30

1 stop17h 00m

Los Angeles

Sun 15/3

21:15-19:40

1 stop15h 25m

£480

SouthamptonLos Angeles

SOU - LAX

SOULAX

Southampton Eastleigh

Wed 22/4

09:10-18:25

1 stop17h 15m

Los Angeles

Wed 13/5

20:10-19:30

1 stop15h 20m

£502

SouthamptonLos Angeles

SOU - LAX

SOULAX

Southampton Eastleigh

Fri 27/2

17:35-11:45

1 stop26h 10m

Los Angeles

Sat 7/3

06:25-08:50

2 stops18h 25m

£533

SouthamptonLos Angeles

SOU - LAX

SOULAX

Southampton Eastleigh

Fri 27/2

17:35-11:45

1 stop26h 10m

Los Angeles

Sat 7/3

13:45-08:20

1 stop34h 35m

£538

SouthamptonLos Angeles

SOU - LAX

SOULAX

Southampton Eastleigh

Tue 28/4

06:50-17:10

3 stops42h 20m

£317

SouthamptonLos Angeles

SOU - LAX

SOULAX

Southampton Eastleigh

Thu 30/4

09:25-18:10

2 stops40h 45m

£345

SouthamptonLos Angeles

SOU - LAX

SOULAX

Southampton Eastleigh

Mon 30/3

14:25-13:45

2 stops31h 20m

£533

SouthamptonLos Angeles

SOU - LAX

SOULAX

Southampton Eastleigh

Tue 23/6

09:10-18:25

1 stop17h 15m

£546

Flights are sorted by cheapest return flights first.

Deals found on 19/1

Showing 1-10 of 14 results

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 £238). Flying from Portsmouth to Irvine in July is currently the most expensive (average of £395). 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?

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

The most flights from P0R to IR9 are scheduled on a Monday (44 on average). You will have fewer flight options on Friday, which is when the least amount of flights are scheduled (38 on average).

Related info for your journey

How long is the flight from Portsmouth to Irvine?
For as low as £468, British Airways can have you in Irvine from Portsmouth in 14h 05m. Airlines will cover a distance of 5434 mi.
What are the most reliable airlines from Portsmouth to Irvine?
Consider SriLankan Airlines (94%), 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 £2,620, our data shows the cheapest flight currently is £339. When looking at the most popular route, (Southampton Eastleigh - Los Angeles), you can expect to pay £478 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 £238). Flying from Portsmouth to Irvine in July is currently the most expensive (average of £395). 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

Alternative routes for Portsmouth to Irvine

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Top 10 airlines flying from Portsmouth to Irvine

Airline	Cheapest	Average	Flexibility	On-time
Iberia	Cheapest£238	Average£488	FlexibilityNo cancel fee	On-time77%	Search Iberia flights
SWISS	Cheapest£277	Average£489	FlexibilityNo cancel fee	On-time79%	Search SWISS flights
Finnair	Cheapest£279	Average£474	FlexibilityNo cancel fee	On-time76%	Search Finnair flights
Norse Atlantic UK	Cheapest£282	Average£506	FlexibilityNo cancel fee	On-timeN/A	Search Norse Atlantic UK flights
Aer Lingus	Cheapest£333	Average£497	FlexibilityNo cancel fee	On-timeN/A	Search Aer Lingus flights
Brussels Airlines	Cheapest£334	Average£484	FlexibilityNo cancel fee	On-timeN/A	Search Brussels Airlines flights
Delta	Cheapest£336	Average£529	FlexibilityNo cancel fee	On-timeN/A	Search Delta flights
Scandinavian Airlines	Cheapest£342	Average£454	FlexibilityNo cancel fee	On-time77%	Search Scandinavian Airlines flights
Austrian Airlines	Cheapest£353	Average£482	FlexibilityNo cancel fee	On-time78%	Search Austrian Airlines flights
Air France	Cheapest£356	Average£499	FlexibilityNo cancel fee	On-time77%	Search Air France flights

Fly with Cheapflights

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!

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Cheap flights from Portsmouth to Irvine from £284

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 28/4. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Portsmouth to Irvine

Cheapest flights from Portsmouth to IrvineExplore 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 22 January 2026.

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 22 January 2026.

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 22 January 2026.

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Cheapflights Fare Finder

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

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.

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?

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 22 January 2026.

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 22 January 2026.

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?

What are the most reliable airlines from Portsmouth to Irvine?

What are the cheapest flights from Portsmouth to Irvine?

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

How can I find direct flights from Portsmouth to Irvine?

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

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

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.

Top 10 airlines flying from Portsmouth to Irvine

Fly with Cheapflights

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

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

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

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

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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 22 January 2026.