$224 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 5/10. 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$489
Shannon
Shannon1 stop$520
Dublin
Dublin1 stop$489
Shannon
Shannon1 stop$520

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

Wed, Mar 18 - Wed, Mar 25
Delta Logo
5:23 am - 7:45 am
PWM
-
DUB
22h 22m
1 stop
Delta Logo
1:25 pm - 1:50 pm
DUB
-
PWM
28h 25m
2 stops
$489Delta
Thu, Feb 26 - Thu, Mar 5
KLM Logo
2:35 pm - 12:40 pm
PWM
-
DUB
17h 05m
2 stops
KLM Logo
1:25 pm - 12:18 am
DUB
-
PWM
15h 53m
2 stops
$493KLM
Wed, Mar 18 - Wed, Mar 25
Delta Logo
2:30 pm - 3:45 pm
PWM
-
DUB
21h 15m
2 stops
Delta Logo
1:25 pm - 1:50 pm
DUB
-
PWM
28h 25m
2 stops
$494Delta
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
6:00 am - 7:30 am
PWM
-
SNN
20h 30m
2 stops
United Airlines Logo
12:30 pm - 6:27 pm
SNN
-
PWM
10h 57m
1 stop
$524United Airlines
Thu, Jul 30 - Mon, Aug 10
Multiple Airlines Logo
2:35 pm - 11:10 am
PWM
-
SNN
15h 35m
1 stop
Multiple Airlines Logo
1:05 pm - 4:15 pm
SNN
-
PWM
32h 10m
2 stops
$529Multiple Airlines
Wed, Mar 4 - Wed, Mar 11
Multiple Airlines Logo
5:31 am - 7:45 am
PWM
-
DUB
21h 14m
1 stop
Multiple Airlines Logo
9:45 am - 11:22 pm
DUB
-
PWM
17h 37m
1 stop
$529Multiple Airlines
Wed, May 6 - Fri, May 22
Air Canada Logo
6:00 am - 8:15 am
PWM
-
DUB
21h 15m
2 stops
Air Canada Logo
9:20 am - 9:11 am
DUB
-
PWM
52h 51m
2 stops
$555Air Canada
Mon, Mar 23 - Mon, Mar 30
American Airlines Logo
12:44 pm - 11:30 am
PWM
-
SNN
18h 46m
2 stops
American Airlines Logo
1:45 pm - 10:28 am
SNN
-
PWM
25h 43m
2 stops
$684American Airlines
Wed, Mar 25 - Mon, Mar 30
American Airlines Logo
6:00 am - 6:20 am
PWM
-
SNN
20h 20m
2 stops
American Airlines Logo
1:45 pm - 10:28 am
SNN
-
PWM
25h 43m
2 stops
$693American 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 KLM ($495) and United Airlines ($520).

Good to know

Cheapest flight$224
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 9245 reviews
8.1Crew
7.7Boarding
7.1Entertainment
6.6Food
7.3Comfort
Airline reviews

Everything except the food and entertainment. It was a great experience though

10.0 ExcellentAnonymous, Feb 2026
LGA - IAH
Read more United Airlines reviews

Everything except the food and entertainment. It was a great experience though

Bad food, bad service, cold cabin with no additional blankets when asked for (they told me they don’t provide additional blankets). I’m a frequent traveler and this is one of the worst companies I traveled with (by the way I thought that I booked my ticket with Lufthansa but I didn’t see that the flights were handled by United).

United Airlines is my preferred airlines and I am thankful for Gary who also help support me on the phone to switch my flight literally last min.

Not being stranded in Chicago for her airport to 11:30 tomorrow morning the 3rd

the whole trip was smooth, and as comfortable as flying is these days. flight crew was friendly and very courteous and helpful.

The attendant on board was amazing. She should be doing business/first international long haul.

Although our flight was delayed the overall boarding process was very smooth and the crew was accommodating.

I was fully checked in the prior night and i was unchecked and then didn’t have a seat when I boarded. Instead of an aisle seat, I was out in the middle seat of the very last row of the plane.

In overall it was a good experience, the only down point was that the entertainment screen was working properly.

HORRIBLE, my initial flight was cancelled, they made me pay $200 extra dollars and that got cancelled as well! After 6 cancellations I decided to get a refund because I needed to get home to my babies. Out of $1000+ dollars they offered me only $40 in refund! Totally unacceptable! The flight that they cancelled I was able to fly it on another airline. I had to spend $400 on one way tickets just to get home! I’m still getting the runaround.

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.

First time flying with JetBlue and never again. I went to the counter to request meet and assist because I'm 74 and my wife is 79. I walk with a cane and my wife is handicapped and has her own wheel chair. I told the agent that my wife and luggage was at the entrance door. The ticketing agent said to me that they don't offer meet and assist. I need to bring them our luggage and then go back and get my wife in order to get my boarding pass. As I went back to get my luggage a Southwest agent along with a TSA agent recognized the situation and came over and took my wife and luggage to the JetBlue ticketing counter alongside the line and told the JetBlue agent to issue to take our luggage as soon as they could.

Flight was fine, price was good but food onboard was abysmal. I was on there for breakfast and lunch and dinner 845am EST to 845pm GMT and all I got was a yoghurt parfait, fruit and a piece of cake. Later snacks included an ice-cream brownie and a pizza twist. I was hungry by the time I landed and the airport amenities were closed. Not happy.

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

Information on your arrival and departure airports