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Cheap flights from Portland, Maine to Dublin from €353

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 19/7. 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
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Find the cheapest flights from Portland, Maine to Dublin

Cheap return flights

Enter your travel dates to find the best prices.
JetBlue Logo
06:41 - 09:00
PWM
-
DUB
21h 19m
1 stop
JetBlue Logo
11:30 - 00:25
DUB
-
PWM
17h 55m
1 stop
€581JetBlue
Sat, 25 Jul - Thu, 13 Aug
United Airlines Logo
18:53 - 11:10
PWM
-
DUB
11h 17m
1 stop
United Airlines Logo
09:50 - 21:23
DUB
-
PWM
40h 33m
2 stops
€595United Airlines
Sun, 16 Aug - Tue, 25 Aug
United Airlines Logo
08:47 - 08:10
PWM
-
DUB
18h 23m
1 stop
United Airlines Logo
09:00 - 14:20
DUB
-
PWM
34h 20m
2 stops
€596United Airlines
Fri, 13 Nov - Mon, 16 Nov
United Airlines Logo
06:00 - 08:10
PWM
-
DUB
21h 10m
2 stops
United Airlines Logo
09:00 - 14:20
DUB
-
PWM
34h 20m
2 stops
€600United Airlines
Fri, 13 Nov - Mon, 16 Nov
American Airlines Logo
15:53 - 09:35
PWM
-
DUB
12h 42m
2 stops
American Airlines Logo
11:30 - 22:47
DUB
-
PWM
16h 17m
1 stop
€610American Airlines
Tue, 10 Nov - Tue, 24 Nov
American Airlines Logo
15:53 - 09:35
PWM
-
DUB
12h 42m
2 stops
American Airlines Logo
11:30 - 23:38
DUB
-
PWM
17h 08m
2 stops
€614American Airlines
Tue, 10 Nov - Tue, 24 Nov
Multiple Airlines Logo
14:35 - 08:45
PWM
-
DUB
13h 10m
1 stop
Multiple Airlines Logo
08:50 - 23:49
DUB
-
PWM
19h 59m
2 stops
€615Multiple Airlines
Tue, 10 Nov - Tue, 24 Nov
Delta Logo
06:00 - 07:45
PWM
-
DUB
20h 45m
1 stop
Delta Logo
10:45 - 23:49
DUB
-
PWM
18h 04m
1 stop
€618Delta
Tue, 10 Nov - Tue, 24 Nov
United Airlines Logo
09:10 - 07:30
PWM
-
DUB
17h 20m
1 stop
United Airlines Logo
12:05 - 19:18
DUB
-
PWM
12h 13m
1 stop
€619United Airlines
Fri, 13 Nov - Mon, 16 Nov
Air France Logo
12:47 - 10:45
PWM
-
DUB
16h 58m
2 stops
Air France Logo
19:15 - 14:13
DUB
-
PWM
23h 58m
2 stops
€620Air France
Tue, 11 Aug - Tue, 18 Aug

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United Airlines flights from Portland, Maine to Dublin

Our best United Airlines deals on Portland, Maine to Dublin flight tickets
United Airlines
16 Aug
PWM18:53Portland
11h 17m
1 stop
DUB11:10Dublin
25 Aug
DUB09:50Dublin
40h 33m
2 stops
PWM21:23Portland
€595
United Airlines
13 Nov
PWM08:47Portland
18h 23m
1 stop
DUB08:10Dublin
16 Nov
DUB09:00Dublin
34h 20m
2 stops
PWM14:20Portland
€596
United Airlines
13 Nov
PWM06:00Portland
21h 10m
2 stops
DUB08:10Dublin
16 Nov
DUB09:00Dublin
34h 20m
2 stops
PWM14:20Portland
€600

KLM flights from Portland, Maine to Dublin

Our best KLM deals on Portland, Maine to Dublin flight tickets
KLM
16 Aug
PWM06:05Portland
21h 40m
1 stop
DUB08:45Dublin
25 Aug
DUB11:00Dublin
17h 13m
1 stop
PWM23:13Portland
€623
KLM
28 Aug
PWM06:00Portland
22h 15m
1 stop
DUB09:15Dublin
3 Sept
DUB11:10Dublin
18h 49m
2 stops
PWM00:59Portland
€761

momondo Fare Finder

 
Customise 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 13,528 searches. Data last updated 30 June 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 return flight

PortlandDublin

PWM - DUB

PWMDUB

Portland

Sat 25/7

06:41-09:00

1 stop21h 19m

Dublin

Thu 13/8

11:30-00:25

1 stop17h 55m

€581

PortlandDublin

PWM - DUB

PWMDUB

Portland

Sun 16/8

18:53-11:10

1 stop11h 17m

Dublin

Tue 25/8

09:50-21:23

2 stops40h 33m

€595

PortlandDublin

PWM - DUB

PWMDUB

Portland

Fri 13/11

08:47-08:10

1 stop18h 23m

Dublin

Mon 16/11

09:00-14:20

2 stops34h 20m

€596

PortlandDublin

PWM - DUB

PWMDUB

Portland

Fri 13/11

06:00-08:10

2 stops21h 10m

Dublin

Mon 16/11

09:00-14:20

2 stops34h 20m

€600
Fastest return journey

PortlandDublin

PWM - DUB

PWMDUB

Portland

Tue 10/11

15:53-09:35

2 stops12h 42m

Dublin

Tue 24/11

11:30-22:47

1 stop16h 17m

€610

PortlandDublin

PWM - DUB

PWMDUB

Portland

Tue 10/11

15:53-09:35

2 stops12h 42m

Dublin

Tue 24/11

11:30-23:38

2 stops17h 08m

€614

PortlandDublin

PWM - DUB

PWMDUB

Portland

Tue 10/11

14:35-08:45

1 stop13h 10m

Dublin

Tue 24/11

08:50-23:49

2 stops19h 59m

€615

PortlandDublin

PWM - DUB

PWMDUB

Portland

Tue 10/11

06:00-07:45

1 stop20h 45m

Dublin

Tue 24/11

10:45-23:49

1 stop18h 04m

€618

PortlandDublin

PWM - DUB

PWMDUB

Portland

Fri 13/11

09:10-07:30

1 stop17h 20m

Dublin

Mon 16/11

12:05-19:18

1 stop12h 13m

€619

PortlandDublin

PWM - DUB

PWMDUB

Portland

Tue 11/8

12:47-10:45

2 stops16h 58m

Dublin

Tue 18/8

19:15-14:13

2 stops23h 58m

€620

Flights are sorted by cheapest return flights first.

Showing 1-10 of 16 resultsSorted by cheapest first
1
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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 airline that flies from Portland to Dublin?

JetBlue, United Airlines, and Scandinavian Airlines are the most popular carriers operating from Portland to Dublin

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 return 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

13h 50m

Direct flights

None
The fastest flight from Portland, Maine to Dublin takes 13h 50m
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?

    Portland and Dublin are 4666.1 km apart from one another. Typically, this will take 13h 50m by plane in normal conditions.

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

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

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

    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 stopovers 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 Dublin Airport.

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

    The travel and health documents you'll need for your trip to Dublin Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's licence and a passport that is valid for six months after your intended arrival at Dublin Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Travelling to a place near Dublin?

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

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Portland to Dublin for you.

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

All flight searches from Portland to Dublin on momondo can be filtered to show those which offer flexible booking policies.

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

Once you have performed a search for Portland to Dublin flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

If you are simply researching potential flights to Dublin, momondo offers a useful price alert feature which will track prices for flights to Dublin from Portland and alert you when they change.

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