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Cheap flights from Portland, Maine to Ireland 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 Ireland 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

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Portland, Maine to Ireland

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
3:43 pm - 7:30 amPWM  Portland-DUB Dublin
10h 47m1 stop Newark
United Airlines Logo
9:50 am - 9:23 pmDUB  Dublin-PWM Portland
40h 33m2 stops Toronto Pearson Intl Chicago O'Hare Intl
$693United Airlines
Tue, Sep 8 - Tue, Sep 15
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
Multiple Airlines Logo
9:49 am - 7:20 amPWM  Portland-DUB Dublin
16h 31m1 stop Washington, D.C. Dulles Intl
Multiple Airlines Logo
9:20 am - 9:08 amDUB  Dublin-PWM Portland
28h 48m2 stops Montreal Pierre Elliott Trudeau Intl Newark
$704Multiple Airlines
Sun, Sep 6 - Sat, Sep 19
Multiple Airlines Logo
5:51 am - 7:30 amPWM  Portland-DUB Dublin
20h 39m2 stops Washington, D.C. Dulles Intl Newark
Multiple Airlines Logo
9:20 am - 9:08 amDUB  Dublin-PWM Portland
28h 48m2 stops Montreal Pierre Elliott Trudeau Intl Newark
$704Multiple Airlines
Sun, Sep 6 - Sat, Sep 19
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
United Airlines Logo
6:00 am - 7:30 amPWM  Portland-SNN Shannon
20h 30m1 stop Chicago O'Hare Intl
United Airlines Logo
12:30 pm - 6:29 pmSNN  Shannon-PWM Portland
10h 59m1 stop Newark
$709United Airlines
Tue, Sep 8 - Tue, Sep 15

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JetBlue flights from Portland, Maine to Ireland

Our best JetBlue deals on Portland, Maine to Ireland flight tickets
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 12
DUB11:30 amDublin
17h 24m
1 stop
PWM11:54 pmPortland
$839
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

Air Canada flights from Portland, Maine to Ireland

Our best Air Canada deals on Portland, Maine to Ireland flight tickets
Air Canada
Aug 25
PWM6:00 amPortland
21h 15m
2 stops
DUB8:15 amDublin
Sep 1
DUB9:50 amDublin
33h 05m
2 stops
PWM1:55 pmPortland
$746
Air Canada
Aug 25
PWM9:10 amPortland
18h 05m
3 stops
DUB8:15 amDublin
Sep 1
DUB9:50 amDublin
18h 42m
3 stops
PWM11:32 pmPortland
$887
Air Canada
Sep 29
PWM9:10 amPortland
18h 05m
3 stops
DUB8:15 amDublin
Oct 6
DUB9:50 amDublin
18h 38m
3 stops
PWM11:28 pmPortland
$888

momondo Fare Finder

 
Customize your flight search to find flights from Portland, Maine to Ireland 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 13, 2026.
Use the filters below to find and compare flights from Portland, Maine to Ireland 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

Tue 9/8

3:43 pm-7:30 am

1 stop10h 47m

Dublin

Tue 9/15

9:50 am-9:23 pm

2 stops40h 33m

$693

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
Quickest round-trip

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

Sun 9/6

9:49 am-7:20 am

1 stop16h 31m

Dublin

Sat 9/19

9:20 am-9:08 am

2 stops28h 48m

$704

PortlandDublin

PWM Portland - DUB Dublin

PWMDUB

Portland

Sun 9/6

5:51 am-7:30 am

2 stops20h 39m

Dublin

Sat 9/19

9:20 am-9:08 am

2 stops28h 48m

$704

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

PortlandShannon

PWM Portland - SNN Shannon

PWMSNN

Portland

Tue 9/8

6:00 am-7:30 am

1 stop20h 30m

Shannon

Tue 9/15

12:30 pm-6:29 pm

1 stop10h 59m

$709

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 16 resultsSorted by cheapest first
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See travel insights to Ireland from

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

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 Ireland?

In general, July is the cheapest month to fly from Portland, Maine to Ireland. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $0. If you aren’t able to travel to Ireland during the month of July, then flying in June is also cheap. Prices for this month can be found on momondo for an average of $0.

Cheap Portland, Maine to Ireland flight deals and tips

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

Fastest flight time

10h 43m

Direct flights

None
The fastest flight from Portland, Maine to Ireland takes 10h 43m
There are no direct flights from Portland, Maine to Ireland. There are no popular flight routes from Portland, Maine to Ireland.
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Frequently asked questions about flying from Portland, Maine to Ireland

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

    Prices for flights from Portland Airport to Ireland are refreshed on a daily basis.

  • How many operators does momondo search for flights from Portland Airport to Ireland?

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

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Portland Airport to Ireland.

  • What documentation or ID do you need to fly to Ireland?

    The travel and health documents required for your trip to Ireland can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Ireland. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from Portland, Maine to Ireland

Compare and see reviews for airlines that fly from Portland, Maine to Ireland with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $606Free CancellationRating
7.4
10,114 reviews
Search United Airlines flights

Why use momondo?

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

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

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

momondo does allow users to show only those flights to Ireland from Portland which offer a flexible booking policy as well as other useful filters and features.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Portland to Ireland.

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

If you are not ready to book a flight from Portland to Ireland now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Ireland and let you know when they change.

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Find better results for your trip to Ireland

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