$369 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$659
Shannon
Shannon1 stop$709
Dublin
Dublin1 stop$659
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

Mon, Aug 24 - Wed, Sep 2
JetBlue Logo
2:40 pm - 9:00 am
PWM
-
DUB
13h 20m
1 stop
JetBlue Logo
11:30 am - 12:14 am
DUB
-
PWM
17h 44m
1 stop
$659JetBlue
Wed, Dec 2 - Sun, Dec 6
United Airlines Logo
2:45 pm - 10:20 am
PWM
-
DUB
14h 35m
1 stop
United Airlines Logo
9:00 am - 9:27 pm
DUB
-
PWM
41h 27m
2 stops
$680United Airlines
Wed, Dec 2 - Sun, Dec 6
Air Canada Logo
3:15 pm - 7:10 am
PWM
-
DUB
34h 55m
2 stops
Air Canada Logo
9:00 am - 4:09 pm
DUB
-
PWM
36h 09m
2 stops
$688Air 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 - 10:33 pm
DUB
-
PWM
16h 03m
2 stops
$702American Airlines
Tue, Nov 10 - Tue, Nov 24
Delta Logo
10:00 am - 8:45 am
PWM
-
DUB
17h 45m
1 stop
Delta Logo
8:50 am - 10:23 pm
DUB
-
PWM
18h 33m
2 stops
$703Delta
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
$704Delta
Tue, Nov 10 - Tue, Nov 24
United Airlines Logo
11:17 am - 7:30 am
PWM
-
DUB
15h 13m
1 stop
United Airlines Logo
12:05 pm - 11:59 pm
DUB
-
PWM
16h 54m
1 stop
$707United Airlines
Mon, Aug 24 - Wed, Sep 2
KLM Logo
2:53 pm - 9:15 am
PWM
-
DUB
13h 22m
1 stop
KLM Logo
5:55 am - 4:01 pm
DUB
-
PWM
15h 06m
2 stops
$708KLM
Thu, Aug 13 - Sun, Aug 23
United Airlines Logo
7:40 am - 7:30 am
PWM
-
SNN
18h 50m
1 stop
United Airlines Logo
12:30 pm - 11:32 pm
SNN
-
PWM
16h 02m
1 stop
$709United Airlines
Wed, Jul 29 - Thu, Aug 27
KLM Logo
4:52 pm - 10:00 am
PWM
-
DUB
12h 08m
1 stop
KLM Logo
11:00 am - 11:13 pm
DUB
-
PWM
17h 13m
1 stop
$711KLM
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 United Airlines ($680) and Delta ($703).

Good to know

Low seasonFebruary
Cheapest flight$369
Best time to beat the crowds with an average 7% drop in price.
Most popular time to fly and prices are also 34% 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 9842 reviews
6.6Food
7.1Entertainment
8.1Crew
7.7Boarding
7.3Comfort
Airline reviews

Horrible! Several delays and then was cancelled! I spent over 24 hours in the airport and was unable to get a hotel or food voucher.

2.0 MediocreAnonymous, Jun 2026
ORD - BHM
Read more United Airlines reviews

Horrible! Several delays and then was cancelled! I spent over 24 hours in the airport and was unable to get a hotel or food voucher.

The entertainment they offer could use some games, and maybe they could add some cookies to the snack menu. And the automated messages are a bit repetitive. But it was comfortable temperature wise and the seats were comfortable. The crew is very polite and helpful

The entertainment is a bit limited, it would be better if they added some games to play besides the movies and tv shows. But the seats are comfortable and the crew is polite

This planes staff was top tier. Everything went great and had a great flight home.

Food was great. Staff was phenomenal. Seats were a bit hard and could use a lot more entertainment options as far as movies to choose from. WiFi was good. Overall great trip.

This was an overnight flight, and in the morning they did know coffee service. How you can throw passengers in a San Francisco airport at 5:40 a.m. in the morning and not giving them Coffee is a crime.

I was promised by United Airline (operated by ANA) that I will be seated together with my kids as I am the only adult flying with two minors. We did not get seats together in our 11 hours flight from LA to Tokyo. When asked at the gate, ANA representative said United Airline should have informed them that there is a parent flying with two minors. He said they can’t do anything in the system as the flight is full. He ask me to ask passengers next to me and the kids if they are willing to change seats. This is ridiculous! However, I went in the flight and asked other passages but no one willing to change seats. 11 hours and we were seating separately. I was very disappointed with this. It made things super inconvenient for me.

Our flight was delayed several Times due to mechanical issues. Although I understand this may happen at times, it was very inconvenient and we had to book a hotel for an overnight stay. We were traveling with my 3-yo grandson and waiting at the airport from noon until 6:30pm with no reassurance that our next rescheduled flight would depart, we had to decide what’s best for him. A day later, I found out that I may be able to demand compensation if my flight is delayed more than 4 hours. I will hav to read the fine print next time.

Flight cancelled instead of leaving Friday am now, maybe, leaving Sunday

The pilot had to extend the flight time from san antonio to Houston to burn off fuel. This caused a lot of unnecessary stress since we had a tight connection to Aruba. And with no other flights going to Aruba we were worried about spending a night in Houston. We had to to run to our connection because of the flight crews mistake. Not happy.

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

Information on your arrival and departure airports