$340 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$613
Shannon
Shannon1 stop$608
Dublin
Dublin1 stop$613
Shannon
Shannon1 stop$608

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

Tue, Apr 28 - Tue, May 5
United Airlines Logo
7:12 pm - 10:15 am
PWM
-
SNN
10h 03m
1 stop
United Airlines Logo
12:30 pm - 6:23 pm
SNN
-
PWM
10h 53m
1 stop
$608United Airlines
Tue, Apr 28 - Tue, May 5
United Airlines Logo
7:12 pm - 10:15 am
PWM
-
SNN
10h 03m
1 stop
United Airlines Logo
12:30 pm - 10:23 am
SNN
-
PWM
26h 53m
2 stops
$612United Airlines
Tue, Sep 8 - Tue, Sep 15
United Airlines Logo
5:15 am - 7:20 am
PWM
-
DUB
21h 05m
1 stop
United Airlines Logo
9:20 am - 11:31 pm
DUB
-
PWM
19h 11m
2 stops
$613United Airlines
Tue, Sep 1 - Fri, Sep 11
United Airlines Logo
8:15 pm - 11:10 am
PWM
-
DUB
9h 55m
1 stop
United Airlines Logo
9:20 am - 11:59 pm
DUB
-
PWM
19h 39m
2 stops
$618United Airlines
Mon, Sep 7 - Tue, Sep 15
United Airlines Logo
5:15 am - 7:20 am
PWM
-
DUB
21h 05m
1 stop
United Airlines Logo
9:20 am - 11:31 pm
DUB
-
PWM
19h 11m
2 stops
$619United Airlines
Tue, Sep 1 - Fri, Sep 11
United Airlines Logo
8:15 pm - 11:10 am
PWM
-
DUB
9h 55m
1 stop
United Airlines Logo
8:50 am - 2:35 pm
DUB
-
PWM
10h 45m
1 stop
$621United Airlines
Wed, Sep 9 - Thu, Sep 17
Delta Logo
11:25 am - 8:15 am
PWM
-
DUB
15h 50m
2 stops
Delta Logo
11:10 am - 11:11 pm
DUB
-
PWM
17h 01m
2 stops
$623Delta
Mon, Sep 7 - Wed, Sep 16
Delta Logo
2:35 pm - 10:25 am
PWM
-
DUB
14h 50m
2 stops
Delta Logo
1:25 pm - 11:59 pm
DUB
-
PWM
15h 34m
2 stops
$627Delta
Fri, Apr 24 - Sat, May 2
Scandinavian Airlines Logo
6:30 am - 6:20 pm
PWM
-
DUB
30h 50m
2 stops
Scandinavian Airlines Logo
7:05 pm - 12:46 am
DUB
-
PWM
34h 41m
2 stops
$628Scandinavian Airlines
Wed, Apr 29 - Wed, May 6
JetBlue Logo
7:28 am - 9:00 am
PWM
-
DUB
20h 32m
1 stop
JetBlue Logo
11:40 am - 11:36 pm
DUB
-
PWM
16h 56m
1 stop
$630JetBlue
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 ($612) and Delta ($623).

Find deals

Good to know

Cheapest flight$340
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 9439 reviews
8.1Crew
7.7Boarding
7.3Comfort
6.6Food
7.1Entertainment
Airline reviews

Business class seats felt very cramped compared to other airlines.

6.0 GoodJane, Mar 2026
LAX - HND
Read more United Airlines reviews

Business class seats felt very cramped compared to other airlines.

Economy plus was so cramped I could not use my laptop. It was beyond bad.

OK, we were delayed and had to de plane and reboard.

United is one airline which regardless of how many separate United tickets in existence, if one flight breaks down, the airline will take care of all the flights.

Both our flights were delayed. Almost didn’t get in the second flight. Staff was rude to the bone.

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

Everything was on time and service on the flight was great!

Wifi Bluetooth features for watching in flight movie was horrible. Screen kept blacking out no connection of sound although it said connected. Other than that smooth trip .

The 777’s economy seat’s legroom was more tolerable than expected. I appreciate the reclining mechanism which slides the seat forward to minimize cannibalizing the space behind. The food was terrible: very salty.

The travel company that you have on your site did me so wrong. I don’t know how it happened, but they put my son‘s name on my plane ticket flying to Vietnam. Along with his birthday. They would not have let me fly from Fort Myers to Ho Chi Minh City. I don’t think that I can ever use your service again. I typed my information into the browser along with my passport number and four days before I’m leaving I have to quickly search another ticket to fly out here.

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

Information on your arrival and departure airports

Portland (PWM)