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$292+ Cheap flights from Portland (PDX) to Dublin (DUB)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/27. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — DUB
Aug 2 — Aug 91
Sat 8/2
Sat 8/9
1 adult, Economy
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Cheapflights Tip: The best prices from Portland to Dublin are usually found in November or February, booked 71 days in advance, depart on a Tuesday or Wednesday and return on a Tuesday

Cheap flight deals from Portland to Dublin

Discover tips and strategies to find the most affordable flight options for your journey from Portland (PDX) to Dublin (DUB). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated July 28, 2025.

Round-trip from

$464
(Delta)

One-way from

$292
(Kiwi.com)

Popular in

June

Cheapest in

November

Average price

$692
From Portland to Dublin
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One-way flight from Portland to Dublin
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Highest demand for flights based on searches. 19% potential increase in price ($142 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($25 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Find flight deals from Portland to Dublin

Cheapest flights from Portland to Dublin
Explore the most affordable flight options available from Portland to Dublin. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 28, 2025.

This Delta deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/2412:50 amPDX - DUB
1 stop23h 55mDelta
Fri 11/710:45 amDUB - PDX
1 stop20h 44mDelta
Deal found 7/28$464
This Air Canada deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/146:15 amPDX - DUB
2 stops17h 30mAir Canada
Thu 9/259:20 amDUB - PDX
2 stops17h 26mAir Canada
Deal found 7/27$466
This Ovago deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/102:05 pmPDX - DUB
2 stops19h 25mBritish Airways
Tue 9/308:20 pmDUB - PDX
1 stop29h 15mBritish Airways
Deal found 7/27$467
This United Airlines deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/1410:51 amPDX - DUB
1 stop14h 54mUnited Airlines
Thu 9/2511:35 amDUB - PDX
2 stops19h 10mUnited Airlines
Deal found 7/27$468
This KLM deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/3011:59 amPDX - DUB
1 stop11h 56mKLM
Wed 8/1310:00 amDUB - PDX
2 stops16h 00mKLM
Deal found 7/28$472
This Kiwi.com deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/252:45 pmPDX - DUB
1 stop11h 30mIcelandair
Sun 11/3011:30 amDUB - PDX
1 stop13h 30mIcelandair
Deal found 7/27$474
This American Airlines deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/177:25 pmPDX - DUB
1 stop17h 05mAmerican Airlines
Sat 11/112:55 pmDUB - PDX
1 stop17h 34mAmerican Airlines
Deal found 7/25$477
This Air France deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/237:00 amPDX - DUB
1 stop17h 45mAir France
Thu 11/279:45 amDUB - PDX
1 stop15h 52mAir France
Deal found 7/27$496
This CheapOair deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/167:40 pmPDX - DUB
2 stops28h 35mMultiple Airlines
Mon 10/276:35 pmDUB - PDX
2 stops34h 58mMultiple Airlines
Deal found 7/26$499

Cheapflights 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, Cheapflights users made 2,558,603 searches. Data last updated July 28, 2025.
Use the filters below to find and compare flights from Portland to Dublin that are best for you.

Fly from

Portland

Fly to

Dublin

Route

Depart

Return

Price

PortlandDublin

PDX - DUB

PDXDUB

Portland

Fri 10/24

12:50 am-8:45 am

1 stop23h 55m

Dublin

Fri 11/7

10:45 am-11:29 pm

1 stop20h 44m

$464

PortlandDublin

PDX - DUB

PDXDUB

Portland

Sun 9/14

6:15 am-7:45 am

2 stops17h 30m

Dublin

Thu 9/25

9:20 am-6:46 pm

2 stops17h 26m

$466

PortlandDublin

PDX - DUB

PDXDUB

Portland

Mon 8/18

6:15 am-7:45 am

2 stops17h 30m

Dublin

Mon 8/25

6:40 pm-10:25 pm

2 stops35h 45m

$467

PortlandDublin

PDX - DUB

PDXDUB

Portland

Thu 8/7

7:35 pm-7:10 am

2 stops27h 35m

Dublin

Fri 8/22

9:20 am-2:50 pm

1 stop13h 30m

$470

PortlandDublin

PDX - DUB

PDXDUB

Portland

Fri 10/17

7:25 pm-8:30 pm

1 stop17h 05m

Dublin

Sat 11/1

12:55 pm-11:29 pm

1 stop17h 34m

$477

PortlandDublin

PDX - DUB

PDXDUB

Portland

Tue 9/23

7:39 am-9:50 am

2 stops18h 11m

Dublin

Wed 10/8

8:20 pm-5:35 pm

1 stop29h 15m

$493

PortlandDublin

PDX - DUB

PDXDUB

Portland

Thu 8/28

3:25 pm-7:45 am

2 stops32h 20m

Dublin

Fri 9/5

9:20 am-6:46 pm

1 stop17h 26m

$496

PortlandDublin

PDX - DUB

PDXDUB

Portland

Tue 9/16

11:44 am-7:55 am

1 stop12h 11m

Dublin

Tue 9/23

12:00 pm-8:56 pm

1 stop16h 56m

$498

PortlandDublin

PDX - DUB

PDXDUB

Portland

Sat 9/20

3:20 pm-11:05 am

1 stop11h 45m

Dublin

Wed 9/24

12:15 pm-5:55 pm

1 stop13h 40m

$507

PortlandDublin

PDX - DUB

PDXDUB

Portland

Sat 9/27

1:38 pm-8:15 pm

2 stops46h 37m

$292

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/26

Showing 1-10 of 17 results
1
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Best time to book a flight from Portland to Dublin

Have a flexible travel schedule? Discover the best time to fly to Dublin from Portland with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Portland to Dublin

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

Use this chart to determine the optimal time to book a round-trip flight from Portland to Dublin. Price data was last updated on July 25, 2025.

The price you pay for your flight from Portland to Dublin may vary depending on when you book. For the best chance of a lower fare, look to book 71 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from Portland to Dublin?

Currently, November is the cheapest month in which you can book a flight from Portland to Dublin (average of $509). Flying from Portland to Dublin in June is currently the most expensive (average of $924). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from PDX to DUB?

Find hourly flight availability from Portland to Dublin. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 28, 2025.

One of the essential ways to save on airfare from Portland to Dublin is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight at noon could potentially save you up to 15% on airfare.

What is the cheapest day to fly from Portland to Dublin?

Use this chart to determine the cheapest time to fly round-trip from Portland to Dublin. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Portland to Dublin flight should consider departing on Tuesday at noon when fares are most often at their lowest. Saturday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

How much does it cost to fly round-trip from Portland to Dublin?

What’s the top layover airport for flights from Portland to Dublin?

Share of 1-stop round-trip flights from Portland to Dublin chosen by Cheapflights users in the past 12 months, using the same layover each way.

Dallas (DFW) – chosen by Cheapflights users on 33% of 1-stop itineraries from Portland to Dublin on Cheapflights.

What’s the cheapest layover airport for flights from Portland to Dublin?

Average round-trip fare for 1-stop flights from Portland to Dublin, chosen by Cheapflights users in the past 12 months, with the same layover each way.

London (LHR) is the most affordable 1-stop option, with an average round-trip price of $432.

What’s the fastest layover option from Portland to Dublin?

Shortest average travel time for 1-stop one-way flights from Portland to Dublin, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.

Flights via London (LHR) have the shortest average one-way travel time for 1-stop routes: 2h 55m.

Which airport typically offers the quickest layover for flights from Portland to Dublin?

Average layover duration for 1-stop one-way flights from Portland to Dublin, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via Reykjavik (KEF) offer the fastest connection on this route, with an average layover time of 1h 15m.

Reviews of airlines servicing Dublin

Get insights into the airlines that provide service to Dublin. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Dublin. Reviews last updated July 28, 2025.
Get a feel of what it's like to fly with Delta, KLM, and Air France from Portland to Dublin by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,975 reviews

Crew

8.5

Food

7.3

Entertainment

7.9

Boarding

8.2

Overall

8.0

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,975 reviews
Delta
8.0
Very good
7,975 reviews

Crew

8.5

Food

7.3

Entertainment

7.9

Boarding

8.2

Overall

8.0

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
KLM
7.8
Good
1,383 reviews
Delta
8.0
Very good
7,975 reviews

Crew

8.5

Food

7.3

Entertainment

7.9

Boarding

8.2

Overall

8.0

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Air France
7.5
Good
1,465 reviews
Delta
8.0
Very good
7,975 reviews

Crew

8.5

Food

7.3

Entertainment

7.9

Boarding

8.2

Overall

8.0

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,892 reviews
Delta
8.0
Very good
7,975 reviews

Crew

8.5

Food

7.3

Entertainment

7.9

Boarding

8.2

Overall

8.0

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,975 reviews

Crew

8.5

Food

7.3

Entertainment

7.9

Boarding

8.2

Overall

8.0

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

Find useful and relevant information for your journey from Portland to Dublin. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What are the cheapest airlines flying from Portland to Dublin round-trip?

    Delta, at $464, was found to be the cheapest airline from Portland to Dublin.Alternate airlines to your destination round-trip include Air Canada and British Airways. Delta is priced at 22% lower than the current average price of a flight leaving 3 months from now.

  • What are the cheapest airlines to fly from Portland to Dublin one-way?

    To fly one-way, consider booking your trip with Lufthansa, which is currently one of the cheapest options available, starting at $329. British Airways flights start at $339 while deals on United Airlines start at $345 one-way.

  • Where are the most common layover locations when flying from Portland to Dublin?

    Flights departing from Portland and landing in Dublin layover in London most frequently. Reykjavik sees the second most layovers for non-direct flights flying from Portland to Dublin. Vancouver sees the third most layovers on flights from Portland to Dublin.

  • What are some popular things to do or see while on a layover in London?

    London travelers tend to visit Hyde Park, Buckingham Palace, and Piccadilly Circus more than anywhere else. Travelers on a layover in London can visit Hyde Park, Buckingham Palace, and Piccadilly Circus, by traveling 12.5 mi, 13.7 mi, and 14.1 mi, respectively after landing at London Heathrow. Those on a layover in London in need of a rental car can book one at London Heathrow for about $51.

  • What are some popular points of interest to see during a layover in Reykjavik?

    Harpa, Hallgrímskirkja, and Laugardalslaug Geothermal Pool are currently the most popular points of interest in Reykjavik at the moment. Harpa, Hallgrímskirkja and Laugardalslaug Geothermal Pool are located about 23.3 mi, 23.2 mi, and 24.6 mi, respectively from Reykjavik Keflavik Intl if you are interested in checking them out. Travelers can book a car rental at Reykjavik Keflavik Intl for about $78 per day to make their sightseeing more efficient.

  • What are points of interest worth seeing during a layover in Vancouver?

    Most Vancouver visitors opt to spend their time at Orpheum Theatre, Pacific Central Station, and Capilano Suspension Bridge. Orpheum Theatre, Pacific Central Station, and Capilano Suspension Bridge can be visited by traveling about 6.5 mi, 6.6 mi, and 10.6 mi respectively from Vancouver Intl. Those on a layover in Vancouver in need of a rental car can book one at Vancouver Intl for about $79.

  • Where are the least popular layover locations for Portland to Dublin flights?

    Portland to Dublin flights have a layover in Chicago least often. Amsterdam sees the second fewest layovers for non-direct flights flying from Portland to Dublin. Amsterdam is followed by Dallas in terms of the least popular layover location for Portland to Dublin flights.

  • Can I find deals for flights from Portland to Dublin that include hotel bookings?

    Yes. In addition to deals on Portland to Dublin flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Portland to Dublin?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Portland to Dublin.

  • Can I find deals for business class flights from Portland to Dublin?

    Yes. Cheapflights offers flight deals from Portland to Dublin by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Portland to Dublin?

    Currently, November is the cheapest month in which you can book a flight from Portland to Dublin (average of $509). Flying from Portland to Dublin in June is currently the most expensive (average of $924). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Dublin?

Book flights to Dublin if you plan to visit one of these locations
Maynooth
Castleknock
Swords
Wicklow
Leixlip

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Top 10 airlines flying from Portland to Dublin

Discover the top 10 airlines that operate flights from Portland to Dublin. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$344Average$544FlexibilityNo cancel feeOn-time76%
British AirwaysCheapest$437Average$611FlexibilityNo cancel feeOn-time70%
IberiaCheapest$437Average$598FlexibilityNo cancel feeOn-time77%
KLMCheapest$462Average$625FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$469Average$656FlexibilityNo cancel feeOn-time69%
DeltaCheapest$479Average$664FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$481Average$741FlexibilityNo cancel feeOn-time71%
Air CanadaCheapest$486Average$723FlexibilityNo cancel feeOn-time67%
LufthansaCheapest$490Average$660FlexibilityNo cancel feeOn-time76%
Air FranceCheapest$493Average$572FlexibilityNo cancel feeOn-time77%

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