$313 Cheap Flights from Portland (PWM) to Dublin (DUB)

View $313 flight on Wed, Oct 8, 2025Opens in a new window

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Find available prices by choosing your travel dates.

Cheap Flights from Portland to Dublin (PWM-DUB)

Prices were available within the past 7 days and start at $313 for one-way flights and $482 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

JetBlue Airways
Tue, Oct 14 - Tue, Oct 21
PWM
Portland
DUB
Dublin
$482 Roundtrip, found 5 days ago
$482
Roundtrip
found 5 days ago
Select JetBlue Airways flight, departing Tue, Oct 14 from Portland to Dublin, returning Tue, Oct 21, priced at $482 found 5 days ago
JetBlue Airways
Tue, Oct 14 - Wed, Oct 22
PWM
Portland
DUB
Dublin
$512 Roundtrip, found 1 day ago
$512
Roundtrip
found 1 day ago
Select JetBlue Airways flight, departing Tue, Oct 14 from Portland to Dublin, returning Wed, Oct 22, priced at $512 found 1 day ago
JetBlue Airways
Sat, Oct 11 - Thu, Oct 16
PWM
Portland
DUB
Dublin
$519 Roundtrip, found 16 hours ago
$519
Roundtrip
found 16 hours ago
Select JetBlue Airways flight, departing Sat, Oct 11 from Portland to Dublin, returning Thu, Oct 16, priced at $519 found 16 hours ago
JetBlue Airways
Sat, May 3 - Wed, May 7
PWM
Portland
DUB
Dublin
$527 Roundtrip, found 6 days ago
$527
Roundtrip
found 6 days ago
Select JetBlue Airways flight, departing Sat, May 3 from Portland to Dublin, returning Wed, May 7, priced at $527 found 6 days ago
JetBlue Airways
Wed, May 7 - Thu, May 29
PWM
Portland
DUB
Dublin
$527 Roundtrip, found 5 hours ago
$527
Roundtrip
found 5 hours ago
Select JetBlue Airways flight, departing Wed, May 7 from Portland to Dublin, returning Thu, May 29, priced at $527 found 5 hours ago
JetBlue Airways
Wed, Oct 15 - Wed, Oct 22
PWM
Portland
DUB
Dublin
$531 Roundtrip, found 1 day ago
$531
Roundtrip
found 1 day ago
Select JetBlue Airways flight, departing Wed, Oct 15 from Portland to Dublin, returning Wed, Oct 22, priced at $531 found 1 day ago
Air Canada
Wed, Nov 26 - Wed, Dec 3
PWM
Portland
DUB
Dublin
$589 Roundtrip, found 13 hours ago
$589
Roundtrip
found 13 hours ago
Select Air Canada flight, departing Wed, Nov 26 from Portland to Dublin, returning Wed, Dec 3, priced at $589 found 13 hours ago
United
Wed, Mar 11 - Mon, Mar 16
PWM
Portland
DUB
Dublin
$622 Roundtrip, found 9 hours ago
$622
Roundtrip
found 9 hours ago
Select United flight, departing Wed, Mar 11 from Portland to Dublin, returning Mon, Mar 16, priced at $622 found 9 hours ago
American Airlines
Tue, May 6 - Tue, May 13
PWM
Portland
DUB
Dublin
$686 Roundtrip, found 1 day ago
$686
Roundtrip
found 1 day ago
Select American Airlines flight, departing Tue, May 6 from Portland to Dublin, returning Tue, May 13, priced at $686 found 1 day ago
Delta
Tue, May 13 - Thu, May 22
PWM
Portland
DUB
Dublin
$686 Roundtrip, found 9 hours ago
$686
Roundtrip
found 9 hours ago
Select Delta flight, departing Tue, May 13 from Portland to Dublin, returning Thu, May 22, priced at $686 found 9 hours ago
Flights from Portland (PWM) to Dublin (DUB)
Origin airport
Portland Intl. Jetport
Destination airport
Dublin
Airlines serving
Air Canada, Air France, American Airlines, Austrian Airlines, Delta, JetBlue Airways, KLM, Scandinavian Airlines, TAP Portugal, Turkish Airlines, United
Roundtrip price
$481
Distance
2903 mi

Portland to Dublin Flights

The cheapest times to fly from Portland to Dublin

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Portland to Dublin are during the month of October. You can find some of the cheapest flights from Portland to Dublin with Expedia's search tool and vast selection of airlines.

The best time to book a flight from Portland to Dublin

Sunday is one of the best days to book for cheap flights from Portland to Dublin: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

How to find cheap round-trip tickets from Portland to Dublin

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Portland to Dublin in 2025. You can also book with separate airlines for your outbound and return journeys, from $313 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Portland to Dublin flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

You could also save big by booking one of Expedia's vacation packages. Bundling together your Portland to Dublin airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

*Terms apply.

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

Frequently asked questions

How much does a flight from Portland Intl. Jetport Airport (PWM) to Dublin Airport (DUB) cost?
Discover the latest flight deals from PWM to DUB by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from PWM to DUB?
The cheapest flights from PWM to DUB are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
What is the cheapest airline that flies from PWM to DUB?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that’ll take you from PWM to DUB. Sort your results by “Price (lowest to highest)” to snap up a great deal.
How many flights per day from Portland Intl. Jetport Airport (PWM) to Dublin Airport (DUB)?
Direct flights from Portland Intl. Jetport Airport (PWM) to Dublin Airport (DUB) aren’t available daily, so you’ll have to take a flight with a layover. Explore your options with our filter tool. Enter your dates and choose either “1 Stop” or “2+ Stops.”
What day of the week has the most flights from PWM to DUB?
Friday is generally the busiest day for flights, while Tuesday is often the quietest.* Remember that flight schedules can vary depending on a number of factors, including the airline and season.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Portland Intl. Jetport Airport (PWM) to Dublin Airport (DUB)?
Book a flight from Portland Intl. Jetport Airport (PWM) to Dublin Airport (DUB) that leaves before 3 PM to reduce the likelihood of delays. Later departures are on average 22% more likely to be canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG’s global flight data platform.
Is it cheaper to buy a plane ticket from Portland Intl. Jetport Airport (PWM) to Dublin Airport (DUB) last-minute?
Booking your ticket from PWM to DUB shortly before your trip is generally more expensive. But if there’s some wiggle room with your departure times and dates, you could snag a cheap last-minute fare.
Is it cheaper to book a PWM to DUB flight and hotel package?
Compared with arranging hotels and flights separately, booking a PWM to DUB flight and hotel package with Expedia could result in significant savings. Better yet, having it all in one place will take the hassle out of planning your trip. Just secure your flights and choose from our extensive range of hotels, then personalize your trip with extras like activities, tours and car rentals.
Can I cancel or change the date of my flight from Portland Intl. Jetport Airport (PWM) to Dublin Airport (DUB)?
If you booked your PWM to DUB flight in the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes after that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you want more information.

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*Available to One Key members.