Latest deals
Insights
When to book
FAQs
Price Alerts

Cheap flights from Portland, Maine to Dublin from $325

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Portland, Maine to Dublin departing on 1/11. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from Portland, Maine to Dublin

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
9:45 am - 8:10 amPWM  Portland-DUB Dublin
17h 25m1 stop Chicago O'Hare Intl
United Airlines Logo
9:00 am - 1:52 pmDUB  Dublin-PWM Portland
33h 52m2 stops Toronto Pearson Intl Chicago O'Hare Intl
$690United Airlines
Sun, Jan 17 - Thu, Jan 21
United Airlines Logo
9:45 am - 7:30 amPWM  Portland-DUB Dublin
16h 45m2 stops Chicago O'Hare Intl Newark
United Airlines Logo
9:00 am - 1:52 pmDUB  Dublin-PWM Portland
33h 52m2 stops Toronto Pearson Intl Chicago O'Hare Intl
$694United Airlines
Sun, Jan 17 - Thu, Jan 21
Delta Logo
4:03 pm - 8:45 amPWM  Portland-DUB Dublin
11h 42m1 stop New York John F Kennedy Intl
Delta Logo
8:50 am - 11:33 pmDUB  Dublin-PWM Portland
19h 43m2 stops Amsterdam Schiphol Atlanta Hartsfield-Jackson
$702Delta
Tue, Nov 10 - Tue, Nov 24
United Airlines Logo
2:05 pm - 10:20 amPWM  Portland-DUB Dublin
15h 15m1 stop Washington, D.C. Dulles Intl
United Airlines Logo
12:05 pm - 11:59 pmDUB  Dublin-PWM Portland
16h 54m1 stop Washington, D.C. Dulles Intl
$706United Airlines
Tue, Nov 10 - Tue, Nov 24
Delta Logo
6:00 am - 2:30 pmPWM  Portland-DUB Dublin
27h 30m2 stops New York John F Kennedy Intl Paris Charles de Gaulle
Delta Logo
5:45 am - 11:33 pmDUB  Dublin-PWM Portland
22h 48m2 stops Amsterdam Schiphol Atlanta Hartsfield-Jackson
$707Delta
Tue, Nov 10 - Tue, Nov 24
Delta Logo
6:00 am - 9:00 amPWM  Portland-DUB Dublin
22h 00m2 stops Atlanta Hartsfield-Jackson Paris Charles de Gaulle
Delta Logo
5:45 am - 11:33 pmDUB  Dublin-PWM Portland
22h 48m2 stops Amsterdam Schiphol Atlanta Hartsfield-Jackson
$707Delta
Tue, Nov 10 - Tue, Nov 24
Air Canada Logo
6:53 pm - 7:45 amPWM  Portland-DUB Dublin
31h 52m2 stops Newark Montreal Pierre Elliott Trudeau Intl
Air Canada Logo
9:50 am - 11:32 pmDUB  Dublin-PWM Portland
42h 42m2 stops Toronto Pearson Intl Newark
$712Air Canada
Thu, Sep 10 - Thu, Sep 17
United Airlines Logo
2:38 pm - 7:20 amPWM  Portland-DUB Dublin
11h 42m1 stop Washington, D.C. Dulles Intl
United Airlines Logo
9:20 am - 11:32 pmDUB  Dublin-PWM Portland
19h 12m2 stops Toronto Pearson Intl Newark
$716United Airlines
Sat, Sep 12 - Sat, Sep 19
United Airlines Logo
3:15 pm - 7:30 amPWM  Portland-DUB Dublin
11h 15m1 stop Newark
United Airlines Logo
9:30 am - 10:57 pmDUB  Dublin-PWM Portland
18h 27m1 stop Newark
$717United Airlines
Sun, Jan 17 - Thu, Jan 21
United Airlines Logo
9:45 am - 8:10 amPWM  Portland-DUB Dublin
17h 25m1 stop Chicago O'Hare Intl
United Airlines Logo
10:40 am - 9:27 pmDUB  Dublin-PWM Portland
15h 47m1 stop Chicago O'Hare Intl
$717United Airlines
Tue, Feb 9 - Fri, Feb 12

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

American Airlines flights from Portland, Maine to Dublin

Our best American Airlines deals on Portland, Maine to Dublin flight tickets
American Airlines
Sep 12
PWM12:52 pmPortland
12h 38m
1 stop
DUB6:30 amDublin
Sep 19
DUB9:30 amDublin
17h 26m
1 stop
PWM9:56 pmPortland
$744
American Airlines
Sep 12
PWM12:52 pmPortland
12h 38m
1 stop
DUB6:30 amDublin
Sep 19
DUB9:30 amDublin
17h 15m
2 stops
PWM9:45 pmPortland
$850
American Airlines
Nov 24
PWM11:07 amPortland
12h 58m
1 stop
DUB5:05 amDublin
Nov 29
DUB1:00 pmDublin
14h 56m
1 stop
PWM10:56 pmPortland
$961

JetBlue flights from Portland, Maine to Dublin

Our best JetBlue deals on Portland, Maine to Dublin flight tickets
JetBlue
Sep 9
PWM6:00 amPortland
22h 00m
1 stop
DUB9:00 amDublin
Sep 16
DUB11:30 amDublin
17h 24m
1 stop
PWM11:54 pmPortland
$765
JetBlue
Sep 6
PWM1:20 pmPortland
14h 40m
1 stop
DUB9:00 amDublin
Sep 12
DUB11:30 amDublin
17h 24m
1 stop
PWM11:54 pmPortland
$809
JetBlue
Sep 6
PWM6:00 amPortland
22h 00m
1 stop
DUB9:00 amDublin
Sep 10
DUB11:30 amDublin
17h 24m
1 stop
PWM11:54 pmPortland
$844

momondo Fare Finder

 
Customize your flight search to find flights from Portland, Maine to Dublin that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated August 15, 2026.
Use the filters below to find and compare flights from Portland, Maine to Dublin that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PortlandDublin

PWM Portland - DUB Dublin

PWMDUB

Portland

Sun 1/17

9:45 am-8:10 am

1 stop17h 25m

Dublin

Thu 1/21

9:00 am-1:52 pm

2 stops33h 52m

$690

PortlandDublin

PWM Portland - DUB Dublin

PWMDUB

Portland

Sun 1/17

9:45 am-7:30 am

2 stops16h 45m

Dublin

Thu 1/21

9:00 am-1:52 pm

2 stops33h 52m

$694

PortlandDublin

PWM Portland - DUB Dublin

PWMDUB

Portland

Tue 11/10

4:03 pm-8:45 am

1 stop11h 42m

Dublin

Tue 11/24

8:50 am-11:33 pm

2 stops19h 43m

$702

PortlandDublin

PWM Portland - DUB Dublin

PWMDUB

Portland

Tue 11/10

2:05 pm-10:20 am

1 stop15h 15m

Dublin

Tue 11/24

12:05 pm-11:59 pm

1 stop16h 54m

$706

PortlandDublin

PWM Portland - DUB Dublin

PWMDUB

Portland

Tue 11/10

6:00 am-2:30 pm

2 stops27h 30m

Dublin

Tue 11/24

5:45 am-11:33 pm

2 stops22h 48m

$707

PortlandDublin

PWM Portland - DUB Dublin

PWMDUB

Portland

Tue 11/10

6:00 am-9:00 am

2 stops22h 00m

Dublin

Tue 11/24

5:45 am-11:33 pm

2 stops22h 48m

$707

PortlandDublin

PWM Portland - DUB Dublin

PWMDUB

Portland

Thu 9/10

6:53 pm-7:45 am

2 stops31h 52m

Dublin

Thu 9/17

9:50 am-11:32 pm

2 stops42h 42m

$712

PortlandDublin

PWM Portland - DUB Dublin

PWMDUB

Portland

Sat 9/12

2:38 pm-7:20 am

1 stop11h 42m

Dublin

Sat 9/19

9:20 am-11:32 pm

2 stops19h 12m

$716
Quickest round-trip

PortlandDublin

PWM Portland - DUB Dublin

PWMDUB

Portland

Sun 1/17

3:15 pm-7:30 am

1 stop11h 15m

Dublin

Thu 1/21

9:30 am-10:57 pm

1 stop18h 27m

$717

PortlandDublin

PWM Portland - DUB Dublin

PWMDUB

Portland

Tue 2/9

9:45 am-8:10 am

1 stop17h 25m

Dublin

Fri 2/12

10:40 am-9:27 pm

1 stop15h 47m

$717

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 16 resultsSorted by cheapest first
1
2

See travel insights to Dublin from

How to get the cheapest flight ticket from Portland, Maine to Dublin

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest airline that flies from Portland to Dublin?

American Airlines and Delta are the most popular carriers operating from Portland to Dublin

What airlines fly to Dublin?

Aer Lingus, Delta and JetBlue are the top three most popular airlines that fly to Dublin from Portland, Maine according to our data. Aer Lingus is the first choice among our users, with 62% of people opting to fly with this airline when traveling to Dublin. Keep in mind that there are 13 different airlines that fly to Dublin on a routine basis, so you have a few additional options to choose from.

When to book flights from Portland, Maine to Dublin

Are you open to changing your travel dates? Check out the ideal times to fly from Portland, Maine to Dublin according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Portland, Maine to Dublin (PWM to DUB) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Portland, Maine to Dublin

Fastest flight time

10h 05m

Direct flights

None
The fastest flight from Portland, Maine to Dublin takes 10h 05m
There are no direct flights from Portland, Maine to Dublin. There are no popular flight routes from Portland, Maine to Dublin.
Search flight deals

Frequently asked questions about flying from Portland, Maine to Dublin

  • How far is Portland to Dublin by plane?

    Dublin is 2899.4 mi away from Portland. Flights usually cover this in 10h 05m, depending on flying conditions and air traffic around both airports.

  • When did momondo last update prices for flights from Portland Airport to Dublin Airport?

    Prices for flights from Portland Airport to Dublin Airport refresh daily.

  • How old do you have to be to fly from Portland Airport to Dublin Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Portland Airport to Dublin Airport.

  • What documentation or ID do you need to fly to Dublin Airport?

    The required travel and health documents for your Dublin Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Dublin Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Traveling to a place near Dublin?

Book flights to Dublin if you plan to visit one of these locations
Kilkenny
Swords
Athlone
Malahide
Kildare
Mullingar
Wicklow
Bray
Portmarnock
Leixlip
Dundalk
Carlingford
Drogheda
Arklow
Naas
Castleknock
Cavan
Slane
Maynooth
Thurles

Why use momondo?

Why should I use momondo to find a flight deal from Portland to Dublin?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Portland to Dublin. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Portland to Dublin with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Portland to Dublin flights to just show those with flexible booking policies.

How can momondo help me find flights from Portland to Dublin?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Dublin from Portland.

I’m not ready to book a flight from Portland to Dublin right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Dublin from Portland. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

An easier way to manage your Dublin trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Mon 9/14
Mon 9/21
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Ireland