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Cheap flights from Portland to Dublin from $275

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 Dublin departing on 10/10. 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 to Dublin

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
3:30 pm - 10:55 am
PDX
-
DUB
35h 25m
3 stops
Multiple Airlines Logo
10:40 am - 1:50 pm
DUB
-
PDX
35h 10m
2 stops
$610Multiple Airlines
Sat, Aug 22 - Fri, Aug 28
Icelandair Logo
3:45 pm - 10:15 am
PDX
-
DUB
11h 30m
1 stop
Icelandair Logo
11:30 am - 5:00 pm
DUB
-
PDX
13h 30m
1 stop
$619Icelandair
Tue, Oct 27 - Wed, Nov 11
Icelandair Logo
3:30 pm - 1:15 pm
PDX
-
DUB
13h 45m
1 stop
Icelandair Logo
12:15 pm - 5:55 pm
DUB
-
PDX
13h 40m
1 stop
$635Icelandair
Wed, Sep 23 - Wed, Sep 30
Icelandair Logo
2:45 pm - 10:15 am
PDX
-
DUB
11h 30m
1 stop
Icelandair Logo
11:30 am - 5:00 pm
DUB
-
PDX
13h 30m
1 stop
$657Icelandair
Mon, Nov 9 - Mon, Nov 16
Icelandair Logo
7:05 pm - 11:05 am
PDX
-
DUB
32h 00m
1 stop
Icelandair Logo
12:15 pm - 11:45 am
DUB
-
PDX
31h 30m
1 stop
$661Icelandair
Fri, Aug 7 - Fri, Aug 21
Icelandair Logo
7:05 pm - 11:05 am
PDX
-
DUB
32h 00m
1 stop
Icelandair Logo
12:15 pm - 11:45 am
DUB
-
PDX
31h 30m
1 stop
$668Icelandair
Fri, Aug 7 - Fri, Aug 21
Icelandair Logo
7:05 pm - 11:05 am
PDX
-
DUB
32h 00m
1 stop
Icelandair Logo
12:15 pm - 5:55 pm
DUB
-
PDX
13h 40m
1 stop
$676Icelandair
Fri, Aug 28 - Fri, Sep 11
Multiple Airlines Logo
7:05 pm - 1:00 pm
PDX
-
DUB
33h 55m
3 stops
Multiple Airlines Logo
11:40 am - 11:45 am
DUB
-
PDX
32h 05m
2 stops
$696Multiple Airlines
Sun, Aug 23 - Mon, Aug 31
United Airlines Logo
10:45 am - 8:10 am
PDX
-
DUB
14h 25m
1 stop
United Airlines Logo
9:00 am - 11:53 am
DUB
-
PDX
34h 53m
2 stops
$719United Airlines
Tue, Oct 27 - Fri, Nov 6
United Airlines Logo
11:00 pm - 9:55 am
PDX
-
DUB
27h 55m
1 stop
United Airlines Logo
9:00 am - 12:35 am
DUB
-
PDX
47h 35m
3 stops
$720United Airlines
Tue, Oct 27 - Fri, Nov 6

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WestJet flights from Portland to Dublin

Our best WestJet deals on Portland to Dublin flight tickets
WestJet
Aug 18
PDX2:30 pmPortland
33h 50m
3 stops
DUB8:20 amDublin
Sep 1
DUB12:15 pmDublin
33h 35m
2 stops
PDX1:50 pmPortland
$752
WestJet
Aug 18
PDX2:30 pmPortland
33h 50m
3 stops
DUB8:20 amDublin
Aug 28
DUB10:40 amDublin
35h 10m
2 stops
PDX1:50 pmPortland
$763

United Airlines flights from Portland to Dublin

Our best United Airlines deals on Portland to Dublin flight tickets
United Airlines
Oct 27
PDX10:45 amPortland
14h 25m
1 stop
DUB8:10 amDublin
Nov 6
DUB9:00 amDublin
34h 53m
2 stops
PDX11:53 amPortland
$719
United Airlines
Oct 27
PDX11:00 pmPortland
27h 55m
1 stop
DUB9:55 amDublin
Nov 6
DUB9:00 amDublin
47h 35m
3 stops
PDX12:35 amPortland
$720
United Airlines
Sep 1
PDX11:17 pmPortland
27h 53m
1 stop
DUB11:10 amDublin
Sep 11
DUB9:50 amDublin
31h 41m
1 stop
PDX9:31 amPortland
$768

momondo Fare Finder

 
Customize your flight search to find flights from Portland 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 July 1, 2026.
Use the filters below to find and compare flights from Portland to Dublin that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PortlandDublin

PDX - DUB

PDXDUB

Portland

Sat 8/22

3:30 pm-10:55 am

3 stops35h 25m

Dublin

Fri 8/28

10:40 am-1:50 pm

2 stops35h 10m

$610
Quickest round-trip

PortlandDublin

PDX - DUB

PDXDUB

Portland

Tue 10/27

3:45 pm-10:15 am

1 stop11h 30m

Dublin

Wed 11/11

11:30 am-5:00 pm

1 stop13h 30m

$619

PortlandDublin

PDX - DUB

PDXDUB

Portland

Wed 9/23

3:30 pm-1:15 pm

1 stop13h 45m

Dublin

Wed 9/30

12:15 pm-5:55 pm

1 stop13h 40m

$635

PortlandDublin

PDX - DUB

PDXDUB

Portland

Mon 11/9

2:45 pm-10:15 am

1 stop11h 30m

Dublin

Mon 11/16

11:30 am-5:00 pm

1 stop13h 30m

$657

PortlandDublin

PDX - DUB

PDXDUB

Portland

Fri 8/7

7:05 pm-11:05 am

1 stop32h 00m

Dublin

Fri 8/21

12:15 pm-11:45 am

1 stop31h 30m

$661

PortlandDublin

PDX - DUB

PDXDUB

Portland

Fri 8/7

7:05 pm-11:05 am

1 stop32h 00m

Dublin

Fri 8/21

12:15 pm-11:45 am

1 stop31h 30m

$668

PortlandDublin

PDX - DUB

PDXDUB

Portland

Fri 8/28

7:05 pm-11:05 am

1 stop32h 00m

Dublin

Fri 9/11

12:15 pm-5:55 pm

1 stop13h 40m

$676

PortlandDublin

PDX - DUB

PDXDUB

Portland

Sun 8/23

7:05 pm-1:00 pm

3 stops33h 55m

Dublin

Mon 8/31

11:40 am-11:45 am

2 stops32h 05m

$696

PortlandDublin

PDX - DUB

PDXDUB

Portland

Tue 10/27

10:45 am-8:10 am

1 stop14h 25m

Dublin

Fri 11/6

9:00 am-11:53 am

2 stops34h 53m

$719

PortlandDublin

PDX - DUB

PDXDUB

Portland

Tue 10/27

11:00 pm-9:55 am

1 stop27h 55m

Dublin

Fri 11/6

9:00 am-12:35 am

3 stops47h 35m

$720

Flights are sorted by cheapest round-trip flights first.

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

How to get the cheapest flight ticket from Portland 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 typical price of a round-trip flight between Portland and Dublin?

What is the cheapest month to fly to Dublin?

In general, November is the cheapest month to fly from Portland to Dublin. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $478. If you’re not able to fly to Dublin in November, then February is your next best option. Flight prices from Portland to Dublin during February average around $484.

How far in advance should I book a flight from Portland to Dublin?

You are more likely to see cheaper flights to Dublin from Portland when booking weeks ahead of your departure date. In general, you can expect to find flights to Dublin for around $641 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Dublin from Portland for as low as $591 on momondo.

Can stopping save me money on Portland to Dublin flights?

You could potentially save up to 13% on your flight if you consider stops on a Portland to Dublin flight.

How have Portland to Dublin flight prices changed over time?

When to book flights from Portland to Dublin

Are you open to changing your travel dates? Check out the ideal times to fly from Portland to Dublin according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Portland to Dublin (PDX to DUB) flight deals and tips

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

Fastest flight time

11h 30m

Direct flights

None
The fastest flight from Portland to Dublin takes 11h 30m
There are no direct flights from Portland to Dublin. There are no popular flight routes from Portland to Dublin.
Search flight deals

Frequently asked questions about flying from Portland to Dublin

  • How far is Portland to Dublin by plane?

    The straight-line distance from Portland to Dublin is 4644.8 mi. A reasonable flight in good conditions will take 11h 30m.

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

  • 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 offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, 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.

  • What is the most popular airline from Portland to Dublin?

Best airlines flying from Portland to Dublin

Compare and see reviews for airlines that fly from Portland to Dublin with momondo
Airline
Rating
Free Cancellation
Price
IcelandairPriceFrom $354Free CancellationRating
7.0
694 reviews
Search Icelandair flights
IberiaPriceFrom $362Free CancellationRating
7.0
3,249 reviews
Search Iberia flights
British AirwaysPriceFrom $459Free CancellationRating
6.7
8,087 reviews
Search British Airways flights
United AirlinesPriceFrom $461Free CancellationRating
7.4
9,920 reviews
Search United Airlines flights
Air CanadaPriceFrom $462Free CancellationRating
7.1
11,285 reviews
Search Air Canada flights
American AirlinesPriceFrom $466Free CancellationRating
7.1
11,768 reviews
Search American Airlines flights
KLMPriceFrom $468Free CancellationRating
7.8
1,532 reviews
Search KLM flights
DeltaPriceFrom $468Free CancellationRating
7.8
8,452 reviews
Search Delta flights
LufthansaPriceFrom $477Free CancellationRating
6.8
8,107 reviews
Search Lufthansa flights
Aer LingusPriceFrom $676Free CancellationRating
7.3
1,634 reviews
Search Aer Lingus flights

Traveling to a place near Dublin?

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

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?

Flights from Portland to Dublin with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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?

Of course. momondo tracks the price of Portland to Dublin flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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