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Cheap flights from Portland to Ireland from €318

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 to Ireland departing on 5/5. 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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Cheap return flights

Enter your travel dates to find the best prices.
Lufthansa Logo
15:50 - 07:30
PDX
-
DUB
31h 40m2 stops
Lufthansa Logo
10:40 - 18:56
DUB
-
PDX
16h 16m1 stop
€353Lufthansa
Sun, 11 Jan - Sun, 25 Jan
Lufthansa Logo
15:50 - 07:30
PDX
-
DUB
31h 40m2 stops
Lufthansa Logo
10:40 - 18:56
DUB
-
PDX
16h 16m1 stop
€355Lufthansa
Sun, 11 Jan - Sat, 24 Jan
Air Canada Logo
15:15 - 07:10
PDX
-
DUB
55h 55m2 stops
Air Canada Logo
09:00 - 09:15
DUB
-
PDX
56h 15m2 stops
€376Air Canada
Sun, 11 Jan - Sat, 24 Jan
British Airways Logo
17:45 - 14:20
PDX
-
DUB
12h 35m1 stop
British Airways Logo
13:25 - 16:55
DUB
-
PDX
34h 30m1 stop
€378British Airways
Sun, 1 Mar - Tue, 10 Mar
Brussels Airlines Logo
07:00 - 08:10
PDX
-
DUB
17h 10m1 stop
Brussels Airlines Logo
10:40 - 18:56
DUB
-
PDX
16h 16m1 stop
€382Brussels Airlines
Wed, 14 Jan - Wed, 21 Jan
United Airlines Logo
10:10 - 07:45
PDX
-
DUB
13h 35m1 stop
United Airlines Logo
09:50 - 20:41
DUB
-
PDX
42h 51m2 stops
€388United Airlines
Fri, 8 May - Tue, 12 May
British Airways Logo
17:45 - 19:40
PDX
-
DUB
17h 55m1 stop
British Airways Logo
17:55 - 15:55
DUB
-
PDX
30h 00m1 stop
€388British Airways
Sun, 11 Jan - Sat, 24 Jan
Brussels Airlines Logo
07:00 - 08:10
PDX
-
DUB
17h 10m1 stop
Brussels Airlines Logo
10:40 - 18:56
DUB
-
PDX
16h 16m1 stop
€391Brussels Airlines
Wed, 14 Jan - Sun, 18 Jan
United Airlines Logo
05:15 - 10:15
PDX
-
SNN
21h 00m2 stops
United Airlines Logo
12:30 - 21:16
SNN
-
PDX
16h 46m1 stop
€508United Airlines
Thu, 30 Apr - Thu, 14 May
Air Canada Logo
09:50 - 16:45
PDX
-
SNN
22h 55m2 stops
Air Canada Logo
07:50 - 09:15
SNN
-
PDX
33h 25m2 stops
€544Air Canada
Wed, 28 Jan - Wed, 4 Feb

Lufthansa flights from Portland to Ireland

Our best Lufthansa deals on Portland to Ireland flight tickets
Lufthansa
11 Jan
PDX15:50Portland
31h 40m
2 stops
DUB07:30Dublin
25 Jan
DUB10:40Dublin
16h 16m
1 stop
PDX18:56Portland
€353
Find similar
Lufthansa
11 Jan
PDX15:50Portland
31h 40m
2 stops
DUB07:30Dublin
24 Jan
DUB10:40Dublin
16h 16m
1 stop
PDX18:56Portland
€355
Find similar
Lufthansa
22 Jan
PDX07:00Portland
17h 10m
1 stop
DUB08:10Dublin
5 Feb
DUB10:40Dublin
19h 52m
1 stop
PDX22:32Portland
€411
Find similar

Air Canada flights from Portland to Ireland

Our best Air Canada deals on Portland to Ireland flight tickets
Air Canada
11 Jan
PDX15:15Portland
55h 55m
2 stops
DUB07:10Dublin
24 Jan
DUB09:00Dublin
56h 15m
2 stops
PDX09:15Portland
€376
Find similar
Air Canada
26 Feb
PDX19:05Portland
28h 05m
2 stops
DUB07:10Dublin
31 Mar
DUB09:50Dublin
42h 43m
2 stops
PDX20:33Portland
€393
Find similar
Air Canada
3 May
PDX19:45Portland
28h 30m
2 stops
DUB08:15Dublin
10 May
DUB09:50Dublin
12h 55m
1 stop
PDX14:45Portland
€399
Find similar

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 December 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

Sun 11/1

15:50-07:30

2 stops31h 40m

Dublin

Sun 25/1

10:40-18:56

1 stop16h 16m

€353

PortlandDublin

PDX - DUB

PDXDUB

Portland

Sun 11/1

15:50-07:30

2 stops31h 40m

Dublin

Sat 24/1

10:40-18:56

1 stop16h 16m

€355

PortlandDublin

PDX - DUB

PDXDUB

Portland

Sun 11/1

15:15-07:10

2 stops55h 55m

Dublin

Sat 24/1

09:00-09:15

2 stops56h 15m

€376

PortlandDublin

PDX - DUB

PDXDUB

Portland

Sun 1/3

17:45-14:20

1 stop12h 35m

Dublin

Tue 10/3

13:25-16:55

1 stop34h 30m

€378

PortlandDublin

PDX - DUB

PDXDUB

Portland

Wed 14/1

07:00-08:10

1 stop17h 10m

Dublin

Wed 21/1

10:40-18:56

1 stop16h 16m

€382

PortlandDublin

PDX - DUB

PDXDUB

Portland

Fri 8/5

10:10-07:45

1 stop13h 35m

Dublin

Tue 12/5

09:50-20:41

2 stops42h 51m

€388

PortlandDublin

PDX - DUB

PDXDUB

Portland

Sun 11/1

17:45-19:40

1 stop17h 55m

Dublin

Sat 24/1

17:55-15:55

1 stop30h 00m

€388

PortlandDublin

PDX - DUB

PDXDUB

Portland

Wed 14/1

07:00-08:10

1 stop17h 10m

Dublin

Sun 18/1

10:40-18:56

1 stop16h 16m

€391

PortlandShannon

PDX - SNN

PDXSNN

Portland

Thu 30/4

05:15-10:15

2 stops21h 00m

Shannon

Thu 14/5

12:30-21:16

1 stop16h 46m

€508

PortlandShannon

PDX - SNN

PDXSNN

Portland

Wed 28/1

09:50-16:45

2 stops22h 55m

Shannon

Wed 4/2

07:50-09:15

2 stops33h 25m

€544

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 €440.

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 €483. 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 €1,182. 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 €679. 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 €726.

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 €544 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

Fastest flight time

11h 35m

Direct flights

None
The fastest flight from Portland to Ireland takes 11h 35m
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.
Start using Trips
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