$220 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 7/20. 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

KAYAK searches hundreds of travel sites at once for deals on flights to Ireland

Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 23% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Portland to Ireland

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Dublin
Dublin1 stop$539
Shannon
Shannon2 stops$493
Dublin
Dublin1 stop$539
Shannon
Shannon2 stops$493

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, Apr 12 - Sat, Apr 18
United Airlines Logo
9:49 am - 10:15 am
PWM
-
SNN
19h 26m
2 stops
United Airlines Logo
12:30 pm - 6:40 pm
SNN
-
PWM
11h 10m
1 stop
$493United Airlines
Sun, Apr 12 - Sat, Apr 18
United Airlines Logo
9:49 am - 10:15 am
PWM
-
SNN
19h 26m
2 stops
United Airlines Logo
12:30 pm - 9:40 pm
SNN
-
PWM
38h 10m
2 stops
$504United Airlines
Thu, Jul 30 - Mon, Aug 10
United Airlines Logo
6:00 am - 7:30 am
PWM
-
SNN
20h 30m
1 stop
United Airlines Logo
12:30 pm - 6:27 pm
SNN
-
PWM
10h 57m
1 stop
$520United Airlines
Thu, Jul 30 - Mon, Aug 10
United Airlines Logo
10:00 am - 7:30 am
PWM
-
SNN
16h 30m
2 stops
United Airlines Logo
12:30 pm - 6:27 pm
SNN
-
PWM
10h 57m
1 stop
$524United Airlines
Wed, Apr 1 - Wed, Apr 8
United Airlines Logo
6:04 am - 9:45 am
PWM
-
DUB
22h 41m
1 stop
United Airlines Logo
9:50 am - 9:40 pm
DUB
-
PWM
40h 50m
2 stops
$539United Airlines
Fri, Aug 14 - Tue, Aug 25
United Airlines Logo
9:34 am - 7:20 am
PWM
-
DUB
16h 46m
1 stop
United Airlines Logo
9:50 am - 11:30 pm
DUB
-
PWM
18h 40m
2 stops
$544United Airlines
Thu, Aug 13 - Tue, Aug 25
United Airlines Logo
6:00 am - 7:20 am
PWM
-
DUB
20h 20m
2 stops
United Airlines Logo
9:50 am - 11:30 pm
DUB
-
PWM
18h 40m
2 stops
$548United Airlines
Fri, Aug 14 - Fri, Aug 21
Air Canada Logo
10:55 am - 8:15 am
PWM
-
DUB
16h 20m
2 stops
Air Canada Logo
9:20 am - 9:11 am
DUB
-
PWM
28h 51m
2 stops
$557Air Canada
Wed, Apr 1 - Wed, Apr 8
Multiple Airlines Logo
5:40 pm - 2:35 pm
PWM
-
DUB
15h 55m
2 stops
Multiple Airlines Logo
10:30 am - 11:32 pm
DUB
-
PWM
18h 02m
2 stops
$563Multiple Airlines
Thu, Jul 30 - Mon, Aug 10
American Airlines Logo
2:39 pm - 10:25 am
PWM
-
SNN
14h 46m
2 stops
American Airlines Logo
11:00 am - 11:51 pm
SNN
-
PWM
17h 51m
2 stops
$724American 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 ($493) and Air Canada ($552).

Good to know

Cheapest flight$220
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 airlines 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 9296 reviews
7.7Boarding
7.1Entertainment
6.6Food
8.1Crew
7.3Comfort
Airline reviews

Both the WIFI and entertainment did not work for 2.5h

6.0 GoodAnonymous, Feb 2026
HNL - NRT
Read more United Airlines reviews

Both the WIFI and entertainment did not work for 2.5h

The crew made our experience extremely bad. They were rude and didn’t have anything for kids.

Very old flight - time to retire it for newer airplanes

2+ hours delayed Outlet in row 12 did not work Tv monitors did not work Lights kept off the entire flight for at 5pm-7pm flight

Very disappointing given gate agent behavior. Filed a formal complaint with United.

Do not like the size of the overhead bin. I think staff should monitor the size of suitcases that are being carried on by passengers to ensure they meet the size requirement.

Crew was great (professional, attentive, prompt). Snacks for 4 hrs flight is deplorable.

Flight delayed. WiFi connectivity very poor if not existant. Last minute arrival forced me to run to catch my connection.

Both of my flights arrived early and check in process was smooth

Terrible. No customer service, no food, no drinks on a 6 hour premier economy booking.

My flight got delayed and eventually canceled, then rescheduled. I and several others had a connection from Boston to Paris and asked several times if we would make it. They assured us we would and then rebooked us mid flight without our consent and closed doors early even though they said they communicated we were a bit delayed. We got stranded in Boston and I opted with being rebooked for a different connection to France since they refused to pay for a Hotel. I've now been in Europe for 5 days and still haven't recieved my bags. There was absolutely no urgency for the fact that I'm in a foreign country with absolutely no change of clothes or any of my medication. Such an overwhelming and frustrating experience.

Automated scanning was slow and somewhat haphazard. Too many people were unfamiliar with the tech and were forced to learn on the fly. The hands off approach of the gate staff made it more uncomfortable. This needs work. Overall the flight and cabin crew were excellent.

The crew for the flight was A+ top notch. They were friendly and professional and made the flight a very relaxing and enjoable.

Rude crew member. She seemed annoyed at me without me saying a single word. Also loudly admonished me for having my bag next to my seat instead of tucked away before landing. Just telling me to put it away and guiding me without giving me a lecture would have been enough.

No included food for a 5 hour flight and the entertainment was only accessible if you had wired headphones (not provided). Otherwise though, great and smooth flying and customer service.

Crew were fantastic and so catering and wonderful! Full score for the entire crew!

Because of weather and mechanical issues our flight was 4 hours late. The only compensation offered to us was a meal voucher to be used only at Boston Airport and only on the day issued. But by the time it was offered to us all the restaurants were closed, so there was no way to use that offer.

Friendly crew, efficient boarding and flight arrived early. Couldn’t ask for a better experience

Terrible. They canceled our early morning flight after midnight on the day of and had no available flights to rebook my family on for the next 72 hours. Yet they still had other flights that were not cancelled from JFK so it couldn’t be based on the weather. It felt like they canceled the flight based on it not being profitable enough for them. I am not interested in traveling with the again. The absolute worse customer service and lack of accountability.

Horribly rude check in at airport, worst in 25 years of flying. All over a simple issue they could have googled to resolve.

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

Information on your arrival and departure airports