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Cheap flights from Ireland to Portland

DUB — PDX
15 Oct — 22 Oct1
1 adult
1 adult, Economy, 0 bags

Find flight deals from Ireland to Portland

Popular in

July

Cheapest in

February

Average price

£744
Highest demand for flights based on searches. 4% potential increase in price (£26 potential increase over avg. return price).
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Cheapest flight prices on average. 1% potential price decrease (£7 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 Ireland to Portland

What is the cheapest month to book a flight from Ireland to Portland?

Currently, February is the cheapest month in which you can book a flight from Ireland to Portland (average of £561). Flying from Ireland to Portland in July is currently the most expensive (average of £788). 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.

Related info for your journey

  • What airport do you fly into for flights to Portland from Ireland?

    Located just 6.0 mi from the city center, Portland (PDX) is the airport most travelers will use when flying to Portland from Ireland.

  • Can I find deals for flights from Ireland to Portland that include hotel bookings?

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

  • How can I find direct flights from Ireland to Portland?

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

  • Can I find deals for business class flights from Ireland to Portland?

    Yes. Cheapflights offers flight deals from Ireland to Portland 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 Ireland to Portland?

    Currently, February is the cheapest month in which you can book a flight from Ireland to Portland (average of £561). Flying from Ireland to Portland in July is currently the most expensive (average of £788). 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.

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How does Cheapflights help users find flights from Ireland to Portland?

When you search for this flight from Ireland to Portland, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from Ireland to Portland?

Millions of users choose and trust Cheapflights to book the best flight deals from Ireland to Portland for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Can Cheapflights find flights from Ireland to Portland with no change fees?

Need flexible booking options for your flight to Portland from Ireland? 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 Ireland to Portland become cheaper?

Not ready to book yet? You can track prices for flights from Ireland to Portland on Cheapflights with our Price Alert feature and get notified when better prices are available.

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