$403 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 7/19. 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$663
Shannon
Shannon1 stop$709
Dublin
Dublin1 stop$663
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

Sat, Jul 25 - Thu, Aug 13
JetBlue Logo
6:41 am - 9:00 am
PWM
-
DUB
21h 19m
1 stop
JetBlue Logo
11:30 am - 12:25 am
DUB
-
PWM
17h 55m
1 stop
$663JetBlue
Sun, Aug 16 - Tue, Aug 25
United Airlines Logo
6:53 pm - 11:10 am
PWM
-
DUB
11h 17m
1 stop
United Airlines Logo
9:50 am - 9:23 pm
DUB
-
PWM
40h 33m
2 stops
$679United Airlines
Fri, Nov 13 - Mon, Nov 16
United Airlines Logo
8:47 am - 8:10 am
PWM
-
DUB
18h 23m
1 stop
United Airlines Logo
9:00 am - 2:20 pm
DUB
-
PWM
34h 20m
2 stops
$680United Airlines
Fri, Nov 13 - Mon, Nov 16
United Airlines Logo
6:00 am - 8:10 am
PWM
-
DUB
21h 10m
2 stops
United Airlines Logo
9:00 am - 2:20 pm
DUB
-
PWM
34h 20m
2 stops
$684United Airlines
Tue, Nov 10 - Tue, Nov 24
American Airlines Logo
3:53 pm - 9:35 am
PWM
-
DUB
12h 42m
2 stops
American Airlines Logo
11:30 am - 10:33 pm
DUB
-
PWM
16h 03m
2 stops
$700American Airlines
Tue, Nov 10 - Tue, Nov 24
Delta Logo
6:00 am - 7:45 am
PWM
-
DUB
20h 45m
1 stop
Delta Logo
5:45 am - 11:49 pm
DUB
-
PWM
23h 04m
2 stops
$702Delta
Tue, Nov 10 - Tue, Nov 24
United Airlines Logo
2:23 pm - 10:20 am
PWM
-
DUB
14h 57m
1 stop
United Airlines Logo
12:05 pm - 11:59 pm
DUB
-
PWM
16h 54m
1 stop
$705United Airlines
Fri, Nov 13 - Mon, Nov 16
United Airlines Logo
9:10 am - 7:30 am
PWM
-
DUB
17h 20m
1 stop
United Airlines Logo
12:05 pm - 7:18 pm
DUB
-
PWM
12h 13m
1 stop
$706United Airlines
Fri, Nov 13 - Mon, Nov 16
United Airlines Logo
3:43 pm - 7:30 am
PWM
-
DUB
10h 47m
1 stop
United Airlines Logo
1:35 pm - 11:23 pm
DUB
-
PWM
14h 48m
1 stop
$707United Airlines
Mon, Sep 14 - Mon, Sep 28
Multiple Airlines Logo
5:15 am - 7:20 am
PWM
-
DUB
21h 05m
1 stop
Multiple Airlines Logo
9:20 am - 1:51 pm
DUB
-
PWM
33h 31m
2 stops
$710Multiple 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 5 days.

In the past 5 days, the cheapest round-trip tickets from Portland to Ireland were found on JetBlue ($663) and United Airlines ($679).

Find deals

Good to know

Cheapest flight$403
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 9894 reviews
8.1Crew
7.3Comfort
7.7Boarding
7.1Entertainment
6.6Food
Airline reviews

Staff could’ve been a little more cordial. The men were much more friendlier than the women. My daughter and I also missed the 2nd to last meal as we were sleeping but that is on us.

8.0 ExcellentAmit, Jun 2026
IAD - CPT
Read more United Airlines reviews

Staff could’ve been a little more cordial. The men were much more friendlier than the women. My daughter and I also missed the 2nd to last meal as we were sleeping but that is on us.

Great staff. Clean plane, but we were delayed for more than an hour due to maintenance issues and had to board another plane.

I was very disappointed with my experience at the United Airlines baggage check. The representative was rude and unhelpful. I was required to remove approximately 1.5 pounds from my two checked bags, even though it was a very small amount over the limit. The interaction was unnecessarily unpleasant, and I expected much better customer service. I hope United will review this incident and provide additional customer service training to its staff.

No extra snacks were available. Meals quality is terrible. Crew was not friendly.

I was exhausted from a long day. The flight was smooth. The first flight during my 3 week travel that took off on time.

Agents at gate were not immediately available to solve problems and once they did they didn’t fix all the fight connections

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)