$325+ Cheap flights from Portland, ME (PWM) to Ireland
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 1/11. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — DUB
Sep 29 — Oct 61
Round-trip
1 adult, Economy
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Find cheap flights from Portland to Ireland with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Portland to Ireland
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Best
Last-minute
One-way
Cheapest flights from Portland to IrelandExplore the most affordable flight options available from Portland to Ireland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 30, 2026.
Explore the most affordable flight options available from Portland to Ireland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 30, 2026.
This Delta deal was found by Cheapflights users on 8/25. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/104:03 pm -
1 stop11h 42m
Tue 11/248:50 am -
2 stops19h 41m
Deal found 8/25![Delta logo]()
$703
This United Airlines deal was found by Cheapflights users on 8/28. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/102:05 pm -
1 stop15h 15m
Tue 11/2412:05 pm -
1 stop16h 54m
Deal found 8/28![United Airlines logo]()
$706
This Air Canada deal was found by Cheapflights users on 8/29. 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.
Thu 10/88:03 am -
2 stops19h 12m
Wed 10/149:20 am -
2 stops43h 08m
Deal found 8/29![Air Canada logo]()
$731
This United Airlines deal was found by Cheapflights users on 8/26. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/118:00 am -
1 stop18h 30m
Tue 9/1512:30 pm -
1 stop16h 02m
Deal found 8/26![United Airlines logo]()
$737
This United Airlines deal was found by Cheapflights users on 8/25. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/233:43 pm -
1 stop10h 47m
Wed 9/309:20 am -
2 stops19h 08m
Deal found 8/25![United Airlines logo]()
$737
This United Airlines deal was found by Cheapflights users on 8/28. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/126:00 am -
1 stop23h 15m
Mon 10/1912:30 pm -
1 stop10h 42m
Deal found 8/28![United Airlines logo]()
$739
This United Airlines deal was found by Cheapflights users on 8/25. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/97:25 pm -
1 stop10h 15m
Fri 10/169:20 am -
2 stops17h 26m
Deal found 8/25![United Airlines logo]()
$742
This United Airlines deal was found by Cheapflights users on 8/28. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/86:00 am -
1 stop23h 15m
Wed 10/1412:30 pm -
1 stop15h 58m
Deal found 8/28![United Airlines logo]()
$744
This United Airlines deal was found by Cheapflights users on 8/25. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/96:00 am -
1 stop23h 15m
Fri 10/1612:30 pm -
1 stop30h 21m
Deal found 8/25![United Airlines logo]()
$794
Best flights from Portland to IrelandDiscover carefully curated flight deals from Portland to Ireland that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 30, 2026.
Discover carefully curated flight deals from Portland to Ireland that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 30, 2026.
This United Airlines deal was found by Cheapflights users on 8/25. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 1/179:45 am -
1 stop17h 25m
Thu 1/219:00 am -
2 stops33h 52m
Deal found 8/25![United Airlines logo]()
$695
This Delta deal was found by Cheapflights users on 8/28. 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.
Tue 11/1012:45 pm -
2 stops14h 00m
Tue 11/241:25 pm -
2 stops30h 51m
Deal found 8/28![Delta logo]()
$716
This United Airlines deal was found by Cheapflights users on 8/28. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/102:05 pm -
1 stop15h 15m
Tue 11/2412:05 pm -
1 stop16h 54m
Deal found 8/28![United Airlines logo]()
$706
This United Airlines deal was found by Cheapflights users on 8/25. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/118:00 am -
1 stop18h 30m
Tue 9/1512:30 pm -
1 stop16h 02m
Deal found 8/25![United Airlines logo]()
$737
This United Airlines deal was found by Cheapflights users on 8/28. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/126:00 am -
1 stop23h 15m
Mon 10/1912:30 pm -
1 stop10h 42m
Deal found 8/28![United Airlines logo]()
$739
Last-minute flights from Portland to IrelandDiscover last-minute flight deals from Portland to Ireland. Data last updated August 30, 2026 and is based on user searches.
Discover last-minute flight deals from Portland to Ireland. Data last updated August 30, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 8/27. 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.
Fri 9/46:03 am -
1 stop20h 27m
Fri 9/1112:30 pm -
1 stop16h 02m
Deal found 8/27![United Airlines logo]()
$889
This Ovago deal was found by Cheapflights users on 8/27. 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.
Fri 9/46:09 pm -
2 stops36h 51m
Fri 9/117:30 am -
2 stops19h 25m
Deal found 8/27![Multiple Airlines logo]()
$999
This Orbitz deal was found by Cheapflights users on 8/27. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/52:40 pm -
1 stop10h 20m
Fri 9/112:30 pm -
1 stop14h 24m
Deal found 8/27![Multiple Airlines logo]()
$997
This United Airlines deal was found by Cheapflights users on 8/27. 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.
Mon 9/77:40 am -
1 stop18h 50m
Thu 9/2412:30 pm -
1 stop15h 58m
Deal found 8/27![United Airlines logo]()
$873
This United Airlines deal was found by Cheapflights users on 8/27. 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.
Fri 9/118:00 am -
1 stop18h 30m
Tue 9/1512:30 pm -
1 stop16h 02m
Deal found 8/27![United Airlines logo]()
$737
This Delta deal was found by Cheapflights users on 8/27. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/1111:50 am -
1 stop15h 05m
Wed 9/1611:10 am -
2 stops17h 46m
Deal found 8/27![Delta logo]()
$767
This United Airlines deal was found by Cheapflights users on 8/27. 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.
Fri 9/1110:50 am -
1 stop19h 20m
Wed 9/169:30 am -
1 stop19h 02m
Deal found 8/27![United Airlines logo]()
$770
This Air Canada deal was found by Cheapflights users on 8/27. 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.
Fri 9/1110:50 am -
3 stops15h 55m
Wed 9/1611:10 am -
3 stops17h 22m
Deal found 8/27![Air Canada logo]()
$1,164
This Air Canada deal was found by Cheapflights users on 8/27. 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.
Fri 9/119:10 am -
3 stops17h 35m
Wed 9/169:20 am -
2 stops19h 12m
Deal found 8/27![Multiple Airlines logo]()
$1,304
This Orbitz deal was found by Cheapflights users on 8/26. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/126:53 pm -
2 stops31h 52m
Sun 9/209:20 am -
2 stops43h 12m
Deal found 8/26![Air Canada logo]()
$808
This United Airlines deal was found by Cheapflights users on 8/26. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/123:47 pm -
2 stops13h 53m
Sun 9/208:50 am -
1 stop10h 48m
Deal found 8/26![United Airlines logo]()
$815
This United Airlines deal was found by Cheapflights users on 8/25. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/233:43 pm -
1 stop10h 47m
Wed 9/309:20 am -
2 stops19h 08m
Deal found 8/25![United Airlines logo]()
$737
One-way flights from Portland to IrelandSearch for one-way flight options from Portland to Ireland. Find affordable one-way fares based on user searches. Data last updated August 30, 2026.
Search for one-way flight options from Portland to Ireland. Find affordable one-way fares based on user searches. Data last updated August 30, 2026.
This American Airlines deal was found by Cheapflights users on 8/27. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 1/1112:35 pm -
2 stops16h 20m
Deal found 8/27![American Airlines logo]()
$325
This Delta deal was found by Cheapflights users on 8/28. 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.
Mon 1/112:35 pm -
1 stop13h 10m
Deal found 8/28![Delta logo]()
$334
This Air Canada deal was found by Cheapflights users on 8/29. 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.
Mon 1/118:55 am -
3 stops20h 20m
Deal found 8/29![Air Canada logo]()
$439
This KAYAK deal was found by Cheapflights users on 8/27. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/96:00 am -
1 stop19h 00m
Deal found 8/27![Multiple Airlines logo]()
$451
This Kiwi.com deal was found by Cheapflights users on 8/27. 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.
Sat 9/125:09 pm -
3 stops42h 26m
Deal found 8/27![Multiple Airlines logo]()
$483
This United Airlines deal was found by Cheapflights users on 8/27. 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.
Thu 9/108:00 am -
1 stop18h 30m
Deal found 8/27![United Airlines logo]()
$558
This United Airlines deal was found by Cheapflights users on 8/27. 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 9/66:03 am -
1 stop20h 27m
Deal found 8/27![United Airlines logo]()
$620
This Kiwi.com deal was found by Cheapflights users on 8/27. 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.
Sun 9/61:20 pm -
3 stops45h 50m
Deal found 8/27![Multiple Airlines logo]()
$689
This Air Canada deal was found by Cheapflights users on 8/27. 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.
Wed 9/910:50 am -
3 stops19h 30m
Deal found 8/27![Air Canada logo]()
$725
This Kiwi.com deal was found by Cheapflights users on 8/27. 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.
Thu 9/1011:50 am -
3 stops20h 35m
Deal found 8/27![Multiple Airlines logo]()
$1,062
This Kiwi.com deal was found by Cheapflights users on 8/27. 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.
Mon 9/76:00 am -
3 stops46h 30m
Deal found 8/27![Multiple Airlines logo]()
$1,125
This Kiwi.com deal was found by Cheapflights users on 8/27. 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 9/81:20 pm -
3 stops30h 50m
Deal found 8/27![Multiple Airlines logo]()
$1,168
Find flight deals from Portland to Ireland
Keep the following information in mind while searching for Portland to Ireland flight deals. Data was last updated August 30, 2026.
Round-trip from | $695 (United Airlines) |
|---|---|
One-way from | $325 (American Airlines) |
Popular in | November |
Cheapest in | February |
Average price | $769 |
Cheapflights Fare Finder
Customize 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, Cheapflights users made 7,457,451 searches. Data last updated August 30, 2026.
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
Cheapest round-trip
PortlandDublin
PWM Portland - DUB Dublin
PWMDUB
Portland
Sun 1/17
9:45 am-8:10 am
1 stop17h 25m
Dublin
Thu 1/21
9:00 am-1:52 pm
2 stops33h 52m
$695
Quickest round-trip
PortlandDublin
PWM Portland - DUB Dublin
PWMDUB
Portland
Tue 11/10
2:05 pm-10:20 am
1 stop15h 15m
Dublin
Tue 11/24
12:05 pm-11:59 pm
1 stop16h 54m
$706
PortlandDublin
PWM Portland - DUB Dublin
PWMDUB
Portland
Tue 11/10
12:45 pm-7:45 am
2 stops14h 00m
Dublin
Tue 11/24
1:25 pm-3:16 pm
2 stops30h 51m
$716
PortlandShannon
PWM Portland - SNN Shannon
PWMSNN
Portland
Fri 9/11
8:00 am-7:30 am
1 stop18h 30m
Shannon
Tue 9/15
12:30 pm-11:32 pm
1 stop16h 02m
$737
PortlandShannon
PWM Portland - SNN Shannon
PWMSNN
Portland
Mon 10/12
6:00 am-10:15 am
1 stop23h 15m
Shannon
Mon 10/19
12:30 pm-6:12 pm
1 stop10h 42m
$739
Cheapest one-way
PortlandDublin
PWM Portland - DUB Dublin
PWMDUB
Portland
Mon 1/11
3:56 pm-12:35 pm
2 stops15h 39m
$325
Quickest one-way
PortlandDublin
PWM Portland - DUB Dublin
PWMDUB
Portland
Mon 1/11
2:35 pm-8:45 am
1 stop13h 10m
$334
PortlandDublin
PWM Portland - DUB Dublin
PWMDUB
Portland
Mon 1/11
8:55 am-10:15 am
3 stops20h 20m
$439
PortlandShannon
PWM Portland - SNN Shannon
PWMSNN
Portland
Wed 9/9
6:00 am-6:00 am
1 stop19h 00m
$451
PortlandShannon
PWM Portland - SNN Shannon
PWMSNN
Portland
Fri 9/11
4:20 pm-11:10 am
1 stop13h 50m
$558
Showing 1-10 of 13 resultsSorted by cheapest first
Best time to book a flight from Portland to Ireland
Have a flexible travel schedule? Discover the best time to fly to Ireland from Portland with our price prediction graph.
PWM-DUB
PWM-SNN
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 Ireland
PWM-IE0
PWM-DUB
PWM-SNN
No data available for this route at this time. Please check back soon.
Reviews of airlines servicing Ireland
Get insights into the airlines that provide service to Ireland. 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 Ireland. Reviews last updated August 30, 2026.
Read through reviews of airlines operating flights from Portland to Ireland, such as United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Crew
8.1
Entertainment
7.1
Boarding
7.7
Overall
7.4
Food
6.7
Comfort
7.3
Reviews
1 / 20
4.0
OkayChris,Aug 2026
MIA - ORD
Crew
8.1
Entertainment
7.1
Boarding
7.7
Overall
7.4
Food
6.7
Comfort
7.3
Reviews
1 / 20
4.0
OkayChris,Aug 2026
MIA - ORD
Related info for your journey
Find useful and relevant information for your journey from Portland to Ireland. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for Portland to Ireland
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Complete your trip
Complete your trip to Ireland by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Portland to Ireland by cabin class
Find flights from Portland to Ireland, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Portland and Ireland flights
Browse other Portland and Ireland flight options. Last updated on August 30, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Portland to Ireland flights
Consider these flights traveling from Portland to Ireland.
Fly to Ireland regions
Consider these flights traveling to Ireland regions.
Top airline flying from Portland to Ireland
Discover the top airline that operate flights from Portland to Ireland. 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 7,457,451 searches. Data last updated August 30, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$606 | Average$956 | FlexibilityNo cancel fee | On-time69% |