$325 Find Cheap Flights from Portland to Ireland - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Portland to Ireland departing on 1/11. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Cheap Flights from Portland to Ireland

Cheapest round-trip prices found by our users on KAYAK in the last 5 days
Dublin
Dublin1 stop$690
Shannon
Shannon1 stop$709
Dublin
Dublin1 stop$690
Shannon
Shannon1 stop$709

Book Cheap Portland to Ireland Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Portland to Ireland that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Portland to Ireland

Sun, Jan 17 - Thu, Jan 21
United Airlines Logo
9:45 am - 8:10 amPWM  Portland-DUB Dublin
17h 25m1 stop Chicago O'Hare Intl
United Airlines Logo
9:00 am - 1:52 pmDUB  Dublin-PWM Portland
33h 52m2 stops Toronto Pearson Intl Chicago O'Hare Intl
$690United Airlines
Tue, Sep 8 - Tue, Sep 15
United Airlines Logo
3:43 pm - 7:30 amPWM  Portland-DUB Dublin
10h 47m1 stop Newark
United Airlines Logo
9:50 am - 9:23 pmDUB  Dublin-PWM Portland
40h 33m2 stops Toronto Pearson Intl Chicago O'Hare Intl
$693United Airlines
Sun, Jan 17 - Thu, Jan 21
United Airlines Logo
9:45 am - 7:30 amPWM  Portland-DUB Dublin
16h 45m2 stops Chicago O'Hare Intl Newark
United Airlines Logo
9:00 am - 1:52 pmDUB  Dublin-PWM Portland
33h 52m2 stops Toronto Pearson Intl Chicago O'Hare Intl
$694United Airlines
Tue, Nov 10 - Tue, Nov 24
Delta Logo
4:03 pm - 8:45 amPWM  Portland-DUB Dublin
11h 42m1 stop New York John F Kennedy Intl
Delta Logo
8:50 am - 11:33 pmDUB  Dublin-PWM Portland
19h 43m2 stops Amsterdam Schiphol Atlanta Hartsfield-Jackson
$702Delta
Tue, Nov 10 - Tue, Nov 24
Delta Logo
6:00 am - 7:45 amPWM  Portland-DUB Dublin
20h 45m1 stop Atlanta Hartsfield-Jackson
Delta Logo
5:45 am - 11:55 pmDUB  Dublin-PWM Portland
23h 10m2 stops Amsterdam Schiphol New York John F Kennedy Intl
$702Delta
Sun, Sep 6 - Sat, Sep 19
Multiple Airlines Logo
9:49 am - 7:20 amPWM  Portland-DUB Dublin
16h 31m1 stop Washington, D.C. Dulles Intl
Multiple Airlines Logo
9:20 am - 9:08 amDUB  Dublin-PWM Portland
28h 48m2 stops Montreal Pierre Elliott Trudeau Intl Newark
$704Multiple Airlines
Sun, Sep 6 - Sat, Sep 19
Multiple Airlines Logo
5:51 am - 7:30 amPWM  Portland-DUB Dublin
20h 39m2 stops Washington, D.C. Dulles Intl Newark
Multiple Airlines Logo
9:20 am - 9:08 amDUB  Dublin-PWM Portland
28h 48m2 stops Montreal Pierre Elliott Trudeau Intl Newark
$704Multiple Airlines
Tue, Nov 10 - Tue, Nov 24
United Airlines Logo
2:05 pm - 10:20 amPWM  Portland-DUB Dublin
15h 15m1 stop Washington, D.C. Dulles Intl
United Airlines Logo
12:05 pm - 11:59 pmDUB  Dublin-PWM Portland
16h 54m1 stop Washington, D.C. Dulles Intl
$706United Airlines
Tue, Nov 10 - Tue, Nov 24
Delta Logo
6:00 am - 9:00 amPWM  Portland-DUB Dublin
22h 00m2 stops Atlanta Hartsfield-Jackson Paris Charles de Gaulle
Delta Logo
5:45 am - 11:33 pmDUB  Dublin-PWM Portland
22h 48m2 stops Amsterdam Schiphol Atlanta Hartsfield-Jackson
$707Delta
Tue, Sep 8 - Tue, Sep 15
United Airlines Logo
6:00 am - 7:30 amPWM  Portland-SNN Shannon
20h 30m1 stop Chicago O'Hare Intl
United Airlines Logo
12:30 pm - 6:29 pmSNN  Shannon-PWM Portland
10h 59m1 stop Newark
$709United Airlines
Booking Insights

KAYAK's insights & trends for Portland to Ireland flights

Get data-powered insights and trends into flights from Portland to Ireland to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from Portland to Ireland?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Portland to Ireland, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Portland to Ireland is June, when tickets cost $0 (return) on average. On the other hand, the most expensive months are November and January, when the average cost of round-trip tickets is $1,332 and $1,220 respectively.

Find deals

Good to know

Low season

February

Cheapest flight

$325
Best time to beat the crowds with an average 6% drop in price.
Most popular time to fly and prices are also 42% lower on average.
Flight from Portland to Dublin

FAQs - booking Ireland flights

  • How does KAYAK find such low prices on flights from Portland to Ireland?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Portland to Ireland.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Portland to Ireland?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Portland to Ireland is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Portland to Ireland?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Portland to Ireland with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Portland to Ireland?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Portland to Ireland up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from Portland to Ireland

 
Need help choosing which airline to fly with from Portland to Ireland? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 10111 reviews
7.7Boarding
7.3Comfort
6.7Food
7.1Entertainment
8.1Crew
Airline reviews

This flight has a history of leaving late, however, I was pleasantly surprised that it was not delayed this day. The flight went smooth, except I was in a window seat and the wall and my feet were freezing. I found it difficult to sleep due to being so cold, I also was using 2 provided UAL blankets and could not get my feet warm. This was annoying, but I still made it there on time and safe.

6.0 GoodHeather, Aug 2026
Read more United Airlines reviews

This flight has a history of leaving late, however, I was pleasantly surprised that it was not delayed this day. The flight went smooth, except I was in a window seat and the wall and my feet were freezing. I found it difficult to sleep due to being so cold, I also was using 2 provided UAL blankets and could not get my feet warm. This was annoying, but I still made it there on time and safe.

Staff didn't seem confident about the ingredients in my lactose intolerance meal

the seat has a problem. the back had a hole.

The back to back mechanical delays from Denver to San Diego and then on my return flight from Denver to Great Falls it added extra time both ways

Really old place. Not as clean as it should be, tray tables needed better cleaning. The items, trays and some other items need to b6 engineered. Anything task you or crew may do is incredibly load, seriously engineer for quiet smooth, easy. Just opening and closing the tray table is actually dangerous and can easily injure a finger. I'm sure it happens as it happened to me! First time I used United and likely will be the last!

I bought this ticket for my daughter. She had to pay for her carry on bag to be checked. My understanding is that transatlantic flights included carry on and personal item The nickeling and diming fo legacy carriers has stooped to an all time low. So sad.

Both my flight where delayed Had 25min to make it to my transfer flight

I just got back from a trip with 3 flights each way. The flights were good and we were happy with out experience. There was one steward on our first flight that was harsh and grump with passengers. It did not leave a good impression. All of the other flight crews were great on the other five flights.

They changed my flight 5 hours before it took off and changed my connecting airport messing up my entire 1st day in Japan.

The Economy Plus rows weren’t as roomy as expected, and the meal service left a lot to be desired for.

Everything you need to know for your flight from Portland to Ireland

Information on your arrival and departure airports

Portland (PWM)