$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 72 hours
Dublin
Dublin1 stop$633
Shannon
Shannon1 stop$709
Dublin
Dublin1 stop$633
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, Aug 23 - Sat, Aug 29
JetBlue Logo
6:00 am - 9:00 am
PWM
-
DUB
22h 00m
1 stop
JetBlue Logo
11:30 am - 12:25 am
DUB
-
PWM
17h 55m
1 stop
$633JetBlue
Thu, Aug 13 - Thu, Aug 20
United Airlines Logo
9:49 am - 7:20 am
PWM
-
DUB
16h 31m
1 stop
United Airlines Logo
9:20 am - 2:34 pm
DUB
-
PWM
34h 14m
2 stops
$684United Airlines
Tue, Sep 1 - Tue, Sep 8
United Airlines Logo
7:35 pm - 10:40 am
PWM
-
DUB
10h 05m
1 stop
United Airlines Logo
9:20 am - 6:29 pm
DUB
-
PWM
38h 09m
2 stops
$688United Airlines
Tue, Sep 1 - Tue, Sep 8
JetBlue Logo
1:20 pm - 9:00 am
PWM
-
DUB
14h 40m
1 stop
JetBlue Logo
11:30 am - 12:10 am
DUB
-
PWM
17h 40m
1 stop
$690JetBlue
Tue, Sep 1 - Tue, Sep 8
United Airlines Logo
6:53 pm - 7:45 am
PWM
-
DUB
31h 52m
2 stops
United Airlines Logo
9:20 am - 5:54 pm
DUB
-
PWM
37h 34m
2 stops
$691United Airlines
Sun, Dec 6 - Thu, Dec 10
Air Canada Logo
6:00 am - 7:10 am
PWM
-
DUB
20h 10m
2 stops
Air Canada Logo
9:00 am - 10:57 pm
DUB
-
PWM
42h 57m
2 stops
$698Air Canada
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 - 11:38 pm
DUB
-
PWM
17h 08m
2 stops
$701American 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, Aug 14 - Wed, Aug 19
Delta Logo
6:00 am - 11:10 am
PWM
-
SNN
24h 10m
1 stop
Delta Logo
1:05 pm - 12:59 am
SNN
-
PWM
16h 54m
1 stop
$814Delta
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 Air Canada ($698) and Delta ($702).

Find deals

Good to know

Cheapest flight

$325
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 10006 reviews
7.1Entertainment
8.1Crew
7.7Boarding
6.6Food
7.3Comfort
Airline reviews

We flew business fares. Was amazing. However, the check in didn't offer business fares preboarding which is less hectic. 8/10 due to this. Staff compared to Canadian carriers go above and beyond. Would gladly fly United again.

10.0 ExcellentChris, Jul 2026
IAH - DEN
Read more United Airlines reviews

We flew business fares. Was amazing. However, the check in didn't offer business fares preboarding which is less hectic. 8/10 due to this. Staff compared to Canadian carriers go above and beyond. Would gladly fly United again.

It was extremely hot in the cabin the entire flight, vent air was worn

The Wi-Fi did not work, so you weren't able to watch entertainment on your own device. They did not have wired headphones so you couldn't watch it on the in-seat entertainment screen either. There was plenty of time to do a drink and snag service but the flight attendants chose not to.

Great experience, boarding was fast and efficient, so much so that we arrived to Chicago very early

Comfortable seating POS to IAH. Food options were satisfactory. Good seat from IAH to ANC. Food options could be better.

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)