How long is the flight from Portsmouth to Irvine?

For as low as £464, Delta can have you in Irvine from Portsmouth in 17h. 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.

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 £2,657, our data shows the cheapest flight currently is £342. When looking at the most popular route, (Southampton Eastleigh - Los Angeles), you can expect to pay £464 for that flight.

What are the most reliable airlines from Portsmouth to Irvine?

Consider SriLankan Airlines (97%), Air Canada (93%) or Austrian Airlines (93%) 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.

£451+ Flights from Portsmouth to Irvine

Q: How much does it cost for a return flight from Portsmouth to Irvine?

Airfare is typical for this route at the moment. Portsmouth to Irvine flights typically cost between £396 and £477 in June. The cheapest return flight price found within the last 3 days was £451 on Delta (24 Jun-7 Jul).

Cheap flight deals from Portsmouth to Irvine

Round-trip from	£451
Popular in	July
Cheapest in	February
Average price	£437

Delta
24/6-7/7
3 total stops
43h 30m 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

Find 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 9 January 2026.

Wed 24/617:20SOU - LAX

1 stop26h 30mDelta

Tue 7/707:45LAX - SOU

2 stops17h 00mDelta

Deal found 8/1£451

Thu 25/609:05SOU - LAX

2 stops30h 09mDelta

Tue 7/707:45LAX - SOU

2 stops17h 00mDelta

Deal found 8/1£456

Thu 5/209:30SOU - LAX

1 stop17h 00mBritish Airways

Thu 12/220:15LAX - SOU

1 stop15h 25mBritish Airways

Deal found 8/1£464

Wed 4/212:25SOU - LAX

1 stop14h 05mBritish Airways

Sun 8/220:15LAX - SOU

1 stop15h 25mBritish Airways

Deal found 7/1£468

Wed 24/617:20SOU - LAX

1 stop29h 25mDelta

Fri 10/707:45LAX - SOU

2 stops17h 00mDelta

Deal found 8/1£469

Mon 22/617:20SOU - LAX

1 stop26h 30mDelta

Tue 7/707:45LAX - SOU

2 stops17h 00mDelta

Deal found 8/1£469

Wed 18/209:25SOU - LAX

1 stop34h 20mVirgin Atlantic

Wed 25/213:45LAX - SOU

1 stop34h 35mVirgin Atlantic

Deal found 8/1£470

Thu 5/209:00SOU - LAX

1 stop34h 45mVirgin Atlantic

Thu 12/208:00LAX - SOU

2 stops16h 25mVirgin Atlantic

Deal found 8/1£471

Thu 25/609:05SOU - LAX

2 stops30h 09mDelta

Fri 10/707:45LAX - SOU

2 stops17h 00mDelta

Deal found 8/1£473

Fri 26/609:05SOU - LAX

2 stops30h 09mDelta

Tue 7/707:45LAX - SOU

2 stops17h 00mDelta

Deal found 8/1£474

Sun 25/109:30SOU - LAX

1 stop17h 00mBritish Airways

Mon 2/220:15LAX - SOU

1 stop31h 40mBritish Airways

Deal found 7/1£475

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 9 January 2026.

Wed 24/617:20SOU - LAX

1 stop26h 30mDelta

Tue 7/707:45LAX - SOU

2 stops17h 00mDelta

Deal found 8/1£451

Thu 5/209:30SOU - LAX

1 stop17h 00mBritish Airways

Thu 12/220:15LAX - SOU

1 stop15h 25mBritish Airways

Deal found 8/1£464

Wed 18/209:25SOU - LAX

1 stop34h 20mVirgin Atlantic

Wed 25/213:45LAX - SOU

1 stop34h 35mVirgin Atlantic

Deal found 8/1£470

Thu 25/609:05SOU - LAX

2 stops30h 09mDelta

Tue 7/707:45LAX - SOU

2 stops17h 00mDelta

Deal found 8/1£456

Wed 4/212:25SOU - LAX

1 stop14h 05mBritish Airways

Sun 8/220:15LAX - SOU

1 stop15h 25mBritish Airways

Deal found 8/1£466

Wed 24/617:20SOU - LAX

1 stop26h 30mDelta

Mon 6/716:45LAX - SOU

1 stop32h 00mDelta

Deal found 8/1£466

Thu 5/209:30SOU - LAX

1 stop17h 00mBritish Airways

Thu 26/220:15LAX - SOU

1 stop15h 25mBritish Airways

Deal found 8/1£468

Thu 25/609:05SOU - LAX

1 stop13h 40mDelta

Mon 6/716:45LAX - SOU

1 stop32h 00mDelta

Deal found 8/1£466

Sun 25/109:30SOU - LAX

1 stop17h 00mBritish Airways

Mon 2/220:15LAX - SOU

1 stop31h 40mBritish Airways

Deal found 7/1£475

Mon 22/617:20SOU - LAX

1 stop26h 30mDelta

Tue 7/707:45LAX - SOU

2 stops17h 00mDelta

Deal found 8/1£469

Fri 26/609:05SOU - LAX

2 stops30h 09mDelta

Tue 7/707:45LAX - SOU

2 stops17h 00mDelta

Deal found 8/1£474

Last-minute flights from Portsmouth to Irvine
Discover last-minute flight deals from Portsmouth to Irvine. Data last updated 9 January 2026 and is based on user searches.

Thu 22/109:30SOU - LAX

1 stop17h 00mBritish Airways

Thu 5/220:15LAX - SOU

1 stop15h 25mBritish Airways

Deal found 7/1£482

Sun 25/109:30SOU - LAX

1 stop17h 00mBritish Airways

Mon 2/220:15LAX - SOU

1 stop31h 40mBritish Airways

Deal found 7/1£475

Wed 4/212:25SOU - LAX

1 stop14h 05mBritish Airways

Sun 8/220:15LAX - SOU

1 stop15h 25mBritish Airways

Deal found 8/1£466

Thu 5/209:30SOU - LAX

1 stop17h 00mBritish Airways

Thu 12/220:15LAX - SOU

1 stop15h 25mBritish Airways

Deal found 8/1£464

Thu 5/209:00SOU - LAX

1 stop34h 45mVirgin Atlantic

Thu 12/208:00LAX - SOU

2 stops16h 25mVirgin Atlantic

Deal found 8/1£471

Wed 18/209:25SOU - LAX

1 stop34h 20mVirgin Atlantic

Wed 25/213:45LAX - SOU

1 stop34h 35mVirgin Atlantic

Deal found 8/1£470

Wed 18/217:35SOU - LAX

1 stop26h 10mDelta

Wed 25/209:32LAX - SOU

2 stops23h 53mDelta

Deal found 7/1£486

Wed 18/209:25SOU - LAX

2 stops21h 58mKLM

Wed 25/208:22LAX - SOU

2 stops15h 58mKLM

Deal found 8/1£486

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 9 January 2026.

Wed 8/709:10SOU - LAX

1 stop17h 15mBritish Airways

Deal found 7/1£549

Tue 2/606:50SOU - LAX

2 stops19h 35mBritish Airways

Deal found 8/1£562

Mon 6/709:10SOU - LAX

1 stop17h 15mBritish Airways

Deal found 7/1£583

Thu 18/609:10SOU - LAX

1 stop17h 15mBritish Airways

Deal found 8/1£593

Wed 4/212:25SOU - LAX

1 stop14h 05mBritish Airways

Deal found 6/1£698

Sun 5/709:10SOU - LAX

1 stop17h 15mBritish Airways

Deal found 7/1£796

Sat 7/209:25SOU - LAX

1 stop34h 20mDelta

Deal found 6/1£803

Sun 1/209:30SOU - LAX

1 stop17h 00mBritish Airways

Deal found 6/1£899

Fly from

Fly to

Route

Depart

Return

Price

SouthamptonLos Angeles

SOU - LAX

SOULAX

Southampton Eastleigh

Wed 24/6

17:20-11:50

1 stop26h 30m

Los Angeles

Tue 7/7

07:45-08:45

2 stops17h 00m

£451

SouthamptonLos Angeles

SOU - LAX

SOULAX

Southampton Eastleigh

Thu 25/6

09:05-07:14

2 stops30h 09m

Los Angeles

Tue 7/7

07:45-08:45

2 stops17h 00m

£456

SouthamptonLos Angeles

SOU - LAX

SOULAX

Southampton Eastleigh

Thu 5/2

09:30-18:30

1 stop17h 00m

Los Angeles

Thu 12/2

20:15-19:40

1 stop15h 25m

£464

SouthamptonLos Angeles

SOU - LAX

SOULAX

Southampton Eastleigh

Wed 4/2

12:25-18:30

1 stop14h 05m

Los Angeles

Sun 8/2

20:15-19:40

1 stop15h 25m

£466

SouthamptonLos Angeles

SOU - LAX

SOULAX

Southampton Eastleigh

Wed 24/6

17:20-11:50

1 stop26h 30m

Los Angeles

Mon 6/7

16:45-08:45

1 stop32h 00m

£466

SouthamptonLos Angeles

SOU - LAX

SOULAX

Southampton Eastleigh

Thu 25/6

09:05-14:45

1 stop13h 40m

Los Angeles

Mon 6/7

16:45-08:45

1 stop32h 00m

£466

SouthamptonLos Angeles

SOU - LAX

SOULAX

Southampton Eastleigh

Thu 5/2

09:30-18:30

1 stop17h 00m

Los Angeles

Thu 26/2

20:15-19:40

1 stop15h 25m

£468

SouthamptonLos Angeles

SOU - LAX

SOULAX

Southampton Eastleigh

Mon 22/6

17:20-11:50

1 stop26h 30m

Los Angeles

Tue 7/7

07:45-08:45

2 stops17h 00m

£469

SouthamptonLos Angeles

SOU - LAX

SOULAX

Southampton Eastleigh

Wed 18/2

09:25-11:45

1 stop34h 20m

Los Angeles

Wed 25/2

13:45-08:20

1 stop34h 35m

£470

SouthamptonLos Angeles

SOU - LAX

SOULAX

Southampton Eastleigh

Fri 26/6

09:05-07:14

2 stops30h 09m

Los Angeles

Tue 7/7

07:45-08:45

2 stops17h 00m

£474

Flights are sorted by cheapest return flights first.

Deals found on 7/1

Showing 1-10 of 19 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 £397). 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 (38 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (32 on average).

How much does it cost for a return flight from Portsmouth to Irvine?

Related info for your journey

How long is the flight from Portsmouth to Irvine?
For as low as £464, Delta can have you in Irvine from Portsmouth in 17h. 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 (97%), Air Canada (93%) or Austrian Airlines (93%) 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 £2,657, our data shows the cheapest flight currently is £342. When looking at the most popular route, (Southampton Eastleigh - Los Angeles), you can expect to pay £464 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 £397). 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£496	FlexibilityNo cancel fee	On-time77%	Search Iberia flights
SWISS	Cheapest£277	Average£447	FlexibilityNo cancel fee	On-time79%	Search SWISS flights
Finnair	Cheapest£279	Average£480	FlexibilityNo cancel fee	On-time76%	Search Finnair flights
Norse Atlantic UK	Cheapest£293	Average£517	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
Delta	Cheapest£336	Average£537	FlexibilityNo cancel fee	On-timeN/A	Search Delta flights
Scandinavian Airlines	Cheapest£338	Average£452	FlexibilityNo cancel fee	On-time77%	Search Scandinavian Airlines flights
Brussels Airlines	Cheapest£357	Average£475	FlexibilityNo cancel fee	On-timeN/A	Search Brussels Airlines flights
Air France	Cheapest£357	Average£487	FlexibilityNo cancel fee	On-time77%	Search Air France flights
KLM	Cheapest£357	Average£522	FlexibilityNo cancel fee	On-time75%	Search KLM 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 £451

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 24/6. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Portsmouth to Irvine

Keep the following information in mind while searching for Portsmouth to Irvine flight deals. Data was last updated 9 January 2026.

Round-trip from

Popular in

Cheapest in

Average price

Find 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 9 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 9 January 2026.

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 9 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 9 January 2026.

How much does it cost for a return flight from Portsmouth to Irvine?

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

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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 9 January 2026.