$320 Find Cheap Flights from Portland to Ireland

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 5/10. 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 72 hours
Dublin
Dublin1 stop$557
Shannon
Shannon1 stop$520
Dublin
Dublin1 stop$557
Shannon
Shannon1 stop$520

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

Thu, Jul 30 - Mon, Aug 10
United Airlines Logo
6:00 am - 7:30 am
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20h 30m
1 stop
United Airlines Logo
12:30 pm - 6:29 pm
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10h 59m
1 stop
$520United Airlines
Thu, Jul 30 - Mon, Aug 10
United Airlines Logo
9:55 am - 7:30 am
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SNN
16h 35m
2 stops
United Airlines Logo
12:30 pm - 6:29 pm
SNN
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PWM
10h 59m
1 stop
$524United Airlines
Sun, Apr 19 - Wed, Apr 29
United Airlines Logo
7:15 pm - 11:10 am
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DUB
10h 55m
1 stop
United Airlines Logo
9:50 am - 10:18 am
DUB
-
PWM
29h 28m
2 stops
$557United Airlines
Sun, Apr 19 - Wed, Apr 29
United Airlines Logo
7:15 pm - 11:10 am
PWM
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DUB
10h 55m
1 stop
United Airlines Logo
1:35 pm - 6:37 pm
DUB
-
PWM
10h 02m
1 stop
$560United Airlines
Sat, Apr 18 - Wed, Apr 29
United Airlines Logo
6:18 pm - 9:45 am
PWM
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DUB
34h 27m
1 stop
United Airlines Logo
9:50 am - 10:18 am
DUB
-
PWM
29h 28m
2 stops
$562United Airlines
Sat, Apr 18 - Wed, Apr 29
United Airlines Logo
6:18 pm - 9:45 am
PWM
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DUB
34h 27m
1 stop
United Airlines Logo
1:35 pm - 6:37 pm
DUB
-
PWM
10h 02m
1 stop
$566United Airlines
Sat, May 23 - Tue, May 26
United Airlines Logo
7:16 pm - 7:20 am
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DUB
31h 04m
1 stop
United Airlines Logo
9:50 am - 9:51 pm
DUB
-
PWM
41h 01m
2 stops
$593United Airlines
Mon, Mar 23 - Mon, Mar 30
Multiple Airlines Logo
6:00 pm - 5:05 pm
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DUB
19h 05m
2 stops
Multiple Airlines Logo
8:30 am - 10:59 pm
DUB
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19h 29m
2 stops
$612Multiple Airlines
Thu, Jul 30 - Mon, Aug 10
Delta Logo
6:30 am - 11:10 am
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SNN
23h 40m
1 stop
Delta Logo
1:05 pm - 11:59 pm
SNN
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15h 54m
1 stop
$649Delta
Sat, Apr 25 - Sat, May 2
American Airlines Logo
7:23 pm - 4:05 pm
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SNN
15h 42m
2 stops
American Airlines Logo
1:45 pm - 10:23 am
SNN
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PWM
25h 38m
2 stops
$684American 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.

Which airlines provide the cheapest flights from Portland to Ireland?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 72 hours.

In the past 3 days, the cheapest round-trip tickets from Portland to Ireland were found on United Airlines ($520) and Delta ($649).

Good to know

Cheapest flight$320
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 9342 reviews
7.7Boarding
6.6Food
7.3Comfort
8.1Crew
7.1Entertainment
Airline reviews

Wonderful. Quick boarding. Early departure and we arrived 30 minutes early at our destination. Unfortunately, when you arrive early, there is still a departing aircraft at our gate. We had to park for 30 minutes until the gate was clear. So our early arrival was not really early at the gate. Otherwise it was a quick and smooth flight. Appreciated the efficiency.

10.0 ExcellentDr. Joseph, Feb 2026
DCA - ORD
Read more United Airlines reviews

Wonderful. Quick boarding. Early departure and we arrived 30 minutes early at our destination. Unfortunately, when you arrive early, there is still a departing aircraft at our gate. We had to park for 30 minutes until the gate was clear. So our early arrival was not really early at the gate. Otherwise it was a quick and smooth flight. Appreciated the efficiency.

Flight on time. Excellent service in Premium Economy. Great food served and cleaned up promptly. Unfortunately the climate control was malfunctioning and it was very cold and felt a bit like camping. Cold helps with sleep though so not complaining too much. Slept well. It asks to rate "entertainment". I do not like any IFE, don't shove a big screen in my face—I have my own phone if I want it. So this will always get low ratings.

We had turbulence ever 1/2 hr or so and the captains announcements were SOOOO LOUD

Everything was great except for the boarding process. Everyone is lining up all at the same time and it’s hard to tell between the groups as they are way too large.

Women boarding passengers at the gate was absolutely rude and disrespectful of passengers. The flight attendant was absolutely delightful! Smiling and connected with the passengers. So happy. The seats are cramped and uncomfortable but I guess that’s just the way it is Communication regarding flight was excellent

Overall we had a good experience during our flight from San Francisco to Houston.

Airport terminal was outdated, flight was on a small jet with no wifi

We were delayed for about an hour from taking off due to traffic control procedures at the destination airport. But once in the air, the flight went well. The crew members were great and provided cabin service despite moderate turbulence during much of the flight.

it was a very short flight so my expectations were low.

As great a red-eye flight as red-eye flights can be.

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

Information on your arrival and departure airports