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Cheap flights from Portland to Ireland from €321

This is the cheapest return flight price found by a momondo user in the last 72 hours by searching for a flight from Portland to Ireland departing on 1/12. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Cheap return flights

Enter your travel dates to find the best prices.
Icelandair Logo
14:45 - 10:15PDX-DUB
11h 30m1 stop
Icelandair Logo
11:30 - 17:00DUB-PDX
13h 30m1 stop
€321Icelandair
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Mon, 1 Dec - Sun, 14 Dec
Icelandair Logo
14:45 - 10:15PDX-DUB
11h 30m1 stop
Icelandair Logo
11:30 - 17:00DUB-PDX
13h 30m1 stop
€338Icelandair
Find Deal
Mon, 8 Dec - Mon, 15 Dec
Icelandair Logo
15:45 - 10:15PDX-DUB
11h 30m1 stop
Icelandair Logo
11:30 - 18:00DUB-PDX
13h 30m1 stop
€345Icelandair
Find Deal
Tue, 10 Mar - Fri, 20 Mar
British Airways Logo
14:13 - 17:00PDX-DUB
18h 47m2 stops
British Airways Logo
20:40 - 15:55DUB-PDX
27h 15m1 stop
€348British Airways
Find Deal
Tue, 3 Feb - Tue, 17 Feb
British Airways Logo
12:35 - 17:00PDX-DUB
20h 25m2 stops
British Airways Logo
08:50 - 20:27DUB-PDX
19h 37m2 stops
€357British Airways
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Wed, 4 Feb - Wed, 11 Feb
KLM Logo
07:00 - 08:45PDX-DUB
17h 45m1 stop
KLM Logo
10:45 - 20:27DUB-PDX
17h 42m1 stop
€372KLM
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Wed, 4 Feb - Wed, 11 Feb
Multiple Airlines Logo
05:30 - 07:10PDX-DUB
17h 40m1 stop
Multiple Airlines Logo
11:30 - 22:56DUB-PDX
19h 26m2 stops
€377Multiple Airlines
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Sun, 30 Nov - Thu, 11 Dec
American Airlines Logo
17:45 - 17:05PDX-DUB
15h 20m1 stop
American Airlines Logo
12:55 - 11:04DUB-PDX
30h 09m1 stop
€378American Airlines
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Mon, 1 Dec - Sun, 14 Dec
American Airlines Logo
12:05 - 16:45PDX-SNN
20h 40m2 stops
American Airlines Logo
07:50 - 16:55SNN-PDX
16h 05m1 stop
€407American Airlines
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Thu, 5 Mar - Wed, 11 Mar
KLM Logo
14:25 - 23:25PDX-ORK
26h 00m1 stop
KLM Logo
17:10 - 11:20ORK-PDX
26h 10m1 stop
€412KLM
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Fri, 13 Mar - Thu, 9 Apr

Icelandair flights from Portland to Ireland

Our best Icelandair deals on Portland to Ireland flight tickets
Icelandair
1 Dec
PDX14:45Portland
11h 30m
1 stop
DUB10:15Dublin
14 Dec
DUB11:30Dublin
13h 30m
1 stop
PDX17:00Portland
€321
Find similar
Icelandair
8 Dec
PDX14:45Portland
11h 30m
1 stop
DUB10:15Dublin
15 Dec
DUB11:30Dublin
13h 30m
1 stop
PDX17:00Portland
€338
Find similar
Icelandair
10 Mar
PDX15:45Portland
11h 30m
1 stop
DUB10:15Dublin
20 Mar
DUB11:30Dublin
13h 30m
1 stop
PDX18:00Portland
€345
Find similar

British Airways flights from Portland to Ireland

Our best British Airways deals on Portland to Ireland flight tickets
British Airways
3 Feb
PDX14:13Portland
18h 47m
2 stops
DUB17:00Dublin
17 Feb
DUB20:40Dublin
27h 15m
1 stop
PDX15:55Portland
€348
Find similar
British Airways
4 Feb
PDX12:35Portland
20h 25m
2 stops
DUB17:00Dublin
11 Feb
DUB08:50Dublin
19h 37m
2 stops
PDX20:27Portland
€357
Find similar
British Airways
11 Jan
PDX17:45Portland
12h 35m
1 stop
DUB14:20Dublin
24 Jan
DUB17:55Dublin
30h 00m
1 stop
PDX15:55Portland
€364
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momondo Fare Finder

 
Customise your flight search to find flights from Portland 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 13,528 searches. Data last updated 15 November 2025.
Use the filters below to find and compare flights from Portland to Ireland that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

PortlandDublin

PDX - DUB

PDXDUB

Portland

Mon 1/12

14:45-10:15

1 stop11h 30m

Dublin

Sun 14/12

11:30-17:00

1 stop13h 30m

€321

PortlandDublin

PDX - DUB

PDXDUB

Portland

Mon 8/12

14:45-10:15

1 stop11h 30m

Dublin

Mon 15/12

11:30-17:00

1 stop13h 30m

€338

PortlandDublin

PDX - DUB

PDXDUB

Portland

Tue 10/3

15:45-10:15

1 stop11h 30m

Dublin

Fri 20/3

11:30-18:00

1 stop13h 30m

€345

PortlandDublin

PDX - DUB

PDXDUB

Portland

Tue 3/2

14:13-17:00

2 stops18h 47m

Dublin

Tue 17/2

20:40-15:55

1 stop27h 15m

€348

PortlandDublin

PDX - DUB

PDXDUB

Portland

Wed 4/2

12:35-17:00

2 stops20h 25m

Dublin

Wed 11/2

08:50-20:27

2 stops19h 37m

€357

PortlandDublin

PDX - DUB

PDXDUB

Portland

Wed 4/2

07:00-08:45

1 stop17h 45m

Dublin

Wed 11/2

10:45-20:27

1 stop17h 42m

€372

PortlandDublin

PDX - DUB

PDXDUB

Portland

Sun 30/11

05:30-07:10

1 stop17h 40m

Dublin

Thu 11/12

11:30-22:56

2 stops19h 26m

€377

PortlandDublin

PDX - DUB

PDXDUB

Portland

Mon 1/12

17:45-17:05

1 stop15h 20m

Dublin

Sun 14/12

12:55-11:04

1 stop30h 09m

€378

PortlandShannon

PDX - SNN

PDXSNN

Portland

Thu 5/3

12:05-16:45

2 stops20h 40m

Shannon

Wed 11/3

07:50-16:55

1 stop16h 05m

€407

PortlandCork

PDX - ORK

PDXORK

Portland

Fri 13/3

14:25-23:25

1 stop26h 00m

Cork

Thu 9/4

17:10-11:20

1 stop26h 10m

€412

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Ireland from

How to get the cheapest flight ticket from Portland 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?

The month of February is another great option to travel to Ireland, with average flight prices from Portland averaging around €445.

What is the cheapest day to depart on your flight to Ireland?

The cheapest day to depart on your flight to Ireland is on a Monday when prices can be found for as low as €488. This is often the case because there is less demand to fly during this day of the week. If your travel schedule is flexible, try to avoid departing on a Tuesday because tickets tend to average around €1,193. These prices are subject to change though, so be sure to set up a Price Alert for flights to Ireland.

What is the cheapest time of day to depart on your flight to Ireland?

At midday is the cheapest time of day to fly from Portland to Ireland when you can find flight prices for as low as €686. Flying to Ireland at midday is an ideal time because this is during off-peak travel hours. In contrast, the most expensive time of day to depart to Ireland is in the morning when prices are around €733.

How far in advance should I book a flight to Ireland?

You are more likely to see cheaper flights to Ireland from Portland when booking weeks ahead of your departure date. In general, you can expect to find flights to Ireland for around €529 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Ireland from Portland for as low as €496 on momondo.

Cheap Portland to Ireland flight deals and tips

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

Direct flights

None
There are no direct flights from Portland to Ireland. There are no popular flight routes from Portland to Ireland.
Search flight deals

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

    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 stopovers. It is recommended that you verify 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 necessary travel and health documents for your Ireland trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's licence and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Why use momondo?

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

It is quick and easy to find Portland to Ireland flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Ireland that suits you.

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 helps you find the best flight between Portland and Ireland by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

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

An easier way to manage your Ireland trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.
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Find better results for your trip to Ireland

Popular Cities in Ireland

Popular flights according to clicks in the last 7 days on momondo
Flights to Dublinfrom €39
Flights to Corkfrom €106
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Flights to Milltown (Kerry)from €39