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Cheap flights from Portsmouth to Irvine

LHR — LAX
30 Oct — 6 Nov1
1 adult
1 adult, Economy, 0 bags

Find flight deals from Portsmouth to Irvine

Popular in

December

Cheapest in

February

Average price

£472
Highest demand for flights based on searches. 1% potential increase in price (£5 potential increase over avg. return price).
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Cheapest flight prices on average. 0% potential price decrease (£4 potential savings vs. average return price).
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Average for round-trip flights in September 2026
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Cheapflights Insights

Everything you need to know about your flight from Portsmouth to Irvine

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.

Related info for your journey

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

    Consider SriLankan Airlines (95%), Malaysia Airlines (89%) or Fiji Airways (86%) 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 £2,442, 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 £484 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.

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Alternative routes for Portsmouth to Irvine

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Top 10 airlines flying from Portsmouth to Irvine

AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest£308Average£492FlexibilityNo cancel feeOn-time69%
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Brussels AirlinesCheapest£339Average£511FlexibilityNo cancel feeOn-timeN/A
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Virgin AtlanticCheapest£344Average£487FlexibilityNo cancel feeOn-time72%
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TAP AIR PORTUGALCheapest£349Average£478FlexibilityNo cancel feeOn-timeN/A
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SWISSCheapest£352Average£560FlexibilityNo cancel feeOn-time79%
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Austrian AirlinesCheapest£355Average£494FlexibilityNo cancel feeOn-time78%
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Aer LingusCheapest£358Average£532FlexibilityNo cancel feeOn-timeN/A
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Air CanadaCheapest£364Average£496FlexibilityNo cancel feeOn-time67%
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British AirwaysCheapest£366Average£534FlexibilityNo cancel feeOn-time70%
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KLMCheapest£368Average£597FlexibilityNo cancel feeOn-time75%
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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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