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Cheap flights from Portland, Maine to Dublin from $326

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 9/15. 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
0 bags

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Find the cheapest flights from Portland, Maine to Dublin

Cheap round-trip flights

Enter your travel dates to find the best prices.
KLM Logo
11:30 am - 7:55 am
PWM
-
DUB
15h 25m
1 stop
KLM Logo
5:45 am - 11:49 pm
DUB
-
PWM
23h 04m
2 stops
$705KLM
Wed, Nov 4 - Sun, Nov 8
KLM Logo
6:05 am - 8:45 am
PWM
-
DUB
21h 40m
1 stop
KLM Logo
1:15 pm - 12:59 am
DUB
-
PWM
16h 44m
1 stop
$713KLM
Wed, Aug 12 - Thu, Aug 20
KLM Logo
4:50 pm - 12:40 pm
PWM
-
DUB
14h 50m
2 stops
KLM Logo
5:45 am - 11:49 pm
DUB
-
PWM
23h 04m
2 stops
$714KLM
Wed, Nov 4 - Sun, Nov 8
KLM Logo
1:35 pm - 7:45 am
PWM
-
DUB
13h 10m
1 stop
KLM Logo
5:45 am - 11:49 pm
DUB
-
PWM
23h 04m
2 stops
$739KLM
Wed, Nov 4 - Sun, Nov 8
Delta Logo
12:50 pm - 7:45 am
PWM
-
DUB
13h 55m
2 stops
Delta Logo
1:25 pm - 11:49 pm
DUB
-
PWM
15h 24m
2 stops
$744Delta
Wed, Nov 4 - Sun, Nov 8
Delta Logo
11:30 am - 7:55 am
PWM
-
DUB
15h 25m
1 stop
Delta Logo
10:45 am - 9:30 am
DUB
-
PWM
27h 45m
1 stop
$747Delta
Wed, Nov 4 - Sun, Nov 8
Delta Logo
6:00 am - 10:00 am
PWM
-
DUB
23h 00m
2 stops
Delta Logo
5:55 am - 11:59 pm
DUB
-
PWM
23h 04m
2 stops
$750Delta
Sat, Sep 5 - Tue, Sep 8
Delta Logo
6:00 am - 10:00 am
PWM
-
DUB
23h 00m
2 stops
Delta Logo
1:15 pm - 11:59 pm
DUB
-
PWM
15h 44m
1 stop
$753Delta
Sat, Sep 5 - Tue, Sep 8
American Airlines Logo
10:56 am - 6:30 am
PWM
-
DUB
14h 34m
1 stop
American Airlines Logo
1:45 pm - 8:17 pm
DUB
-
PWM
11h 32m
1 stop
$772American Airlines
Sat, Sep 5 - Tue, Sep 8
KLM Logo
10:00 am - 8:45 am
PWM
-
DUB
17h 45m
1 stop
KLM Logo
10:45 am - 11:49 pm
DUB
-
PWM
18h 04m
1 stop
$788KLM
Wed, Nov 4 - Sun, Nov 8

United Airlines flights from Portland, Maine to Dublin

Our best United Airlines deals on Portland, Maine to Dublin flight tickets
United Airlines
Jun 26
PWM5:00 pmPortland
11h 45m
1 stop
DUB9:45 amDublin
Jul 3
DUB9:20 amDublin
29h 03m
2 stops
PWM9:23 amPortland
$1,224
United Airlines
Jun 26
PWM5:15 amPortland
21h 30m
2 stops
DUB7:45 amDublin
Jul 3
DUB9:20 amDublin
29h 03m
2 stops
PWM9:23 amPortland
$1,228
United Airlines
Jun 24
PWM3:16 pmPortland
11h 14m
1 stop
DUB7:30 amDublin
Jul 1
DUB12:30 pmDublin
16h 00m
2 stops
PWM11:30 pmPortland
$1,858

KLM flights from Portland, Maine to Dublin

Our best KLM deals on Portland, Maine to Dublin flight tickets
KLM
Nov 4
PWM11:30 amPortland
15h 25m
1 stop
DUB7:55 amDublin
Nov 8
DUB5:45 amDublin
23h 04m
2 stops
PWM11:49 pmPortland
$705
KLM
Aug 12
PWM6:05 amPortland
21h 40m
1 stop
DUB8:45 amDublin
Aug 20
DUB1:15 pmDublin
16h 44m
1 stop
PWM12:59 amPortland
$713
KLM
Nov 4
PWM4:50 pmPortland
14h 50m
2 stops
DUB12:40 pmDublin
Nov 8
DUB5:45 amDublin
23h 04m
2 stops
PWM11:49 pmPortland
$714

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 May 12, 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 - DUB

PWMDUB

Portland

Wed 11/4

11:30 am-7:55 am

1 stop15h 25m

Dublin

Sun 11/8

5:45 am-11:49 pm

2 stops23h 04m

$705

PortlandDublin

PWM - DUB

PWMDUB

Portland

Wed 8/12

6:05 am-8:45 am

1 stop21h 40m

Dublin

Thu 8/20

1:15 pm-12:59 am

1 stop16h 44m

$713

PortlandDublin

PWM - DUB

PWMDUB

Portland

Wed 11/4

4:50 pm-12:40 pm

2 stops14h 50m

Dublin

Sun 11/8

5:45 am-11:49 pm

2 stops23h 04m

$714

PortlandDublin

PWM - DUB

PWMDUB

Portland

Wed 11/4

1:35 pm-7:45 am

1 stop13h 10m

Dublin

Sun 11/8

5:45 am-11:49 pm

2 stops23h 04m

$739

PortlandDublin

PWM - DUB

PWMDUB

Portland

Wed 11/4

12:50 pm-7:45 am

2 stops13h 55m

Dublin

Sun 11/8

1:25 pm-11:49 pm

2 stops15h 24m

$744

PortlandDublin

PWM - DUB

PWMDUB

Portland

Wed 11/4

11:30 am-7:55 am

1 stop15h 25m

Dublin

Sun 11/8

10:45 am-9:30 am

1 stop27h 45m

$747

PortlandDublin

PWM - DUB

PWMDUB

Portland

Sat 9/5

6:00 am-10:00 am

2 stops23h 00m

Dublin

Tue 9/8

5:55 am-11:59 pm

2 stops23h 04m

$750

PortlandDublin

PWM - DUB

PWMDUB

Portland

Sat 9/5

6:00 am-10:00 am

2 stops23h 00m

Dublin

Tue 9/8

1:15 pm-11:59 pm

1 stop15h 44m

$753
Quickest round-trip

PortlandDublin

PWM - DUB

PWMDUB

Portland

Sat 9/5

10:56 am-6:30 am

1 stop14h 34m

Dublin

Tue 9/8

1:45 pm-8:17 pm

1 stop11h 32m

$772

PortlandDublin

PWM - DUB

PWMDUB

Portland

Wed 11/4

10:00 am-8:45 am

1 stop17h 45m

Dublin

Sun 11/8

10:45 am-11:49 pm

1 stop18h 04m

$788

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 18 resultsSorted by cheapest first
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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 month to fly to Dublin?

In general, December is the cheapest month to fly from Portland, Maine to Dublin. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $0. If you’re not able to fly to Dublin in December, then February is your next best option. Flight prices from Portland, Maine to Dublin during February average around $508.

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

11h 27m

Direct flights

None
The fastest flight from Portland, Maine to Dublin takes 11h 27m
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 11h 27m, 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
Dundalk
Mullingar
Bray
Kildare
Wicklow
Drogheda
Malahide
Portmarnock
Arklow
Castleknock
Leixlip
Carlingford
Cavan
Naas
Maynooth
Slane
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.

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