Cheap Flights from Portland to Dublin

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Flight deals from Portland to Dublin

Looking for a cheap last-minute deal or the best return flight from Portland to Dublin? Find the lowest prices on one-way and return tickets right here.

Dublin.$1,013 per passenger.Departing Wed, 5 Aug, returning Fri, 14 Aug.Return flight with Delta.Outbound indirect flight with Delta, departs from Portland on Wed, 5 Aug, arriving in Dublin.Inbound indirect flight with Delta, departs from Dublin on Fri, 14 Aug, arriving in Portland.Price includes taxes and charges.From $1,013, select.

Dublin.$1,255 per passenger.Departing Sun, 22 Mar, returning Sun, 29 Mar.Return flight with Delta.Outbound indirect flight with Delta, departs from Portland on Sun, 22 Mar, arriving in Dublin.Inbound indirect flight with Delta, departs from Dublin on Sun, 29 Mar, arriving in Portland.Price includes taxes and charges.From $1,255, select.

Find the cheapest month to fly from Portland to Dublin

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Portland to Dublin flights are currently cheapest in August.

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Portland to Dublin: Alternative routes

Compare routes from Portland to Dublin below. You may find an airport to fly into that's cheaper, faster, or easier than Dublin.

Dublin

10km from central Dublin

ClosestCheapest

from $1,013

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Portland to Dublin: Flight information

The things to know before you go.

Cheapest flight found	$1,013
Cheapest month to fly	August

Finding cheap flights from Portland to Dublin: Frequently asked questions

How much are return flights from Portland to Dublin?

The best price we found for a return flight from Portland to Dublin is $1,013. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.

Which airlines fly direct from Portland to Dublin?

Currently, there are no airlines that fly direct from Portland to Dublin. But we found flights with one or more stops from $1,013.

How many flights are there a week from Portland to Dublin?

As of February 2026, there are no flights flying from Portland to Dublin.

When is the cheapest time to fly from Portland to Dublin?

The cheapest month to fly from Portland to Dublin is usually August.

Which upcoming date is cheapest to fly from Portland Airport to Dublin Airport on?

After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Portland Airport to Dublin Airport on Wednesday, 5 August 2026.

Can I get a direct flight from Portland Airport to Dublin Airport?

No airlines currently offer direct flights between Portland Airport and Dublin Airport. Most routes have one or more stops.

How can I find the best flight deal to Dublin?

We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Dublin but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.

When is the best time to book flights to Dublin?

We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Dublin is around 40 days in advance, so don’t leave your flight to the last minute.

Which is the cheapest airline to fly from Portland Airport to Dublin with?

Currently, Delta offers the cheapest flight tickets to Dublin.

Flying from Portland International Jetport Airport (PWM) to Dublin Airport (DUB): what you need to know

Dublin is four hours ahead of Portland and is in the UTC+0 timezone.
For a smooth journey, arrive at the airport two hours ahead of international flights and one hour before domestic departures. This way, you'll have plenty of time to board your PWM to DUB flight.
During popular months such as August, it's a good idea to get to the airport earlier. Plan to arrive two hours before a domestic departure and four hours ahead for international flights whenever you're flying during a high season in general.
We make it a piece of cake to book a flight with a stopover. To see all your options for tickets from Portland International Jetport Airport to Dublin Airport, deselect 'Direct flights only.' Then, pick a flight offering a stop long enough to visit the city of your choice. Top stopovers between PWM and DUB include:
- John F. Kennedy International Airport
- Washington Dulles International Airport
- Newark Liberty International Airport

How to find the cheapest flights from Portland International Jetport Airport (PWM) to Dublin Airport (DUB)

Right now, $539 is the lowest price we've found for a one-way Portland International Jetport Airport to Dublin Airport flight. The best price for a return plane ticket is $1,013. Keep in mind that fares could change due to availability at the time of booking.
It's often best to book ahead of time if you're hoping to get cheap tickets from PWM to DUB. That's because airlines adjust prices based on demand, which tends to rise closer to the date of departure.
Finding cheap flights from Portland International Jetport Airport to Dublin Airport is easier if you can be flexible with your dates. Use the 'Whole month' search tool to see the best prices across each month and score a great deal.
Landing cheap flights from PWM to DUB is a breeze with Price Alerts. All you need to do is set up one of these automatic alerts and we'll notify you when a lower fare pops up.
Tailor your flights using filters. Select your ideal departure and arrival times, total journey duration and airlines. You can also sort the results by 'Best,' 'Fastest' or 'Cheapest' flights from Portland International Jetport Airport to Dublin Airport.

Handy information about Portland International Jetport Airport (PWM)

PWM is located at 1001 Westbrook Street.
82.15% of flights departing from Portland International Jetport Airport land at their destination on time. Given its impressive on-time stats, disruptions are unlikely when flying out of PWM.
Portland International Jetport Airport is around 8 kilometres from central Portland. If you're driving, ride-sharing or catching a cab from the centre, it'll take you 15 minutes or so to arrive, depending on the traffic.
The trip when using public transport will take about 40 minutes.
Catching an early flight from Portland International Jetport Airport to Dublin Airport? Avoid the last-minute rush to the airport (and sneak in some extra snooze time) by picking one of these stays near PWM:

Arriving at Dublin Airport (DUB)

Consider staying in a hotel near DUB if you have a late Portland International Jetport Airport to Dublin Airport flight. Choose one of these accommodation options and avoid the hassle of a long transfer:
Get your adventure underway by picking up a Dublin Airport rental car. Grab a set of wheels from Easirent, Budget or Carhire and explore beyond Dublin's main sights.
Reserving your ride from Dublin Airport around two weeks in advance gives you the best chance of locking in a great deal.

Getting from Dublin Airport (DUB) to central Dublin

Dublin Airport to central Dublin has a drive time of around 30 minutes. It's approximately 21 kilometres away.
If you're travelling by public transport, expect a journey time of roughly 2 hours 10 minutes.

When to fly to Dublin Airport (DUB)

It's time to plan your dates for your flight from Portland International Jetport Airport to Dublin Airport. August is the busiest month to head to Dublin. If you prefer a quieter vibe, go in January.
When reserving your flight from Portland International Jetport Airport to Dublin Airport, think about the type of weather you enjoy. July is the warmest month in Dublin, with temperatures ranging from 10ºC to 20ºC.
Look for cheap tickets from PWM to DUB in January if you like travelling in cooler conditions. Temperatures are at their lowest around then, ranging between 1ºC and 9ºC on average.

Explore more of Ireland

Dublin is easy to fall in love with, but there are so many other corners of Ireland just waiting to be discovered. About 225 kilometres south-west of Dublin, a trip to Cork will keep your itinerary busy. Start with attractions like Blarney Castle, Fota Wildlife Park and Titanic Experience Cobh.
Around 10 kilometres south-west of Dublin, Tallaght is another favourite stop in Ireland. No visit is complete without checking out Church of the Incarnation, Fettercairn, 3 stuffed bears and Johnson & Perrott Fleet.