$489 Cheap Aer Lingus flights Portland (PDX) to Shannon (SNN)

View $489 flight on Sun, Jul 27, 2025Opens in a new window

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$489 Cheap Aer Lingus flights Portland (PDX) to Shannon (SNN)

Prices were available within the past 7 days and start at $489 for one-way flights and $890 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Aer Lingus
Wed, Mar 25 - Thu, Apr 2
PDX
Portland
SNN
Shannon
$890 Roundtrip, found 6 days ago
$890
Roundtrip
found 6 days ago
Select Aer Lingus flight, departing Wed, Mar 25 from Portland to Shannon, returning Thu, Apr 2, priced at $890 found 6 days ago
Flights from Portland (PDX) to Shannon (SNN)
Origin airport
Portland Intl.
Destination airport
Shannon
Airlines serving
Aer Lingus, Air Canada, Air France, American Airlines, British Airways, Delta, JetBlue Airways, Lufthansa, United
Popular airline
British Airways
Distance
4598 mi

Frequently asked questions

How much is an Aer Lingus flight from Portland Intl. Airport (PDX) to Shannon Airport (SNN)?
Landing cheap one-way Aer Lingus flights from PDX to SNN from $489 on Expedia is easy --- just filter by "Price (lowest to highest)." Or check out our affordable return fares from $890 for your next exciting getaway.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
What is the cheapest month to fly from PDX to SNN with Aer Lingus?
Search for one-way or return flights to Shannon in January or February. You could find lower fares with Aer Lingus during these quieter months.
What is the cheapest time to book flights from Portland Intl. Airport (PDX) to Shannon Airport (SNN) with Aer Lingus?
Start your search for Aer Lingus flights from PDX to SNN about one month before you want to leave. The cheapest time to reserve an international flight is generally 18 to 29 days ahead of your departure date when you can save 17% versus booking four to five months in advance. Regardless of fare class or itinerary, the best day to book international airfare is usually Sunday. Friday can be the most expensive. Travelers who book on a Sunday can save 17% on average compared to those who book on a Friday.**Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC's global airline sales database.
Does Aer Lingus fly nonstop from Portland Intl. Airport (PDX) to Shannon Airport (SNN)?
Enter your dates, press search and check "Nonstop" on Expedia to find any direct flights from PDX to SNN with Aer Lingus or another carrier.
What is the earliest Aer Lingus flight from PDX to SNN?
Sort your results by "Morning" and "Early Morning" to find the earliest flights from PDX to SNN. Heading off early means you're 20% less likely to experience cancellations.**Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports does Aer Lingus fly into in Shannon?
Take an Aer Lingus flight from Portland Intl. Airport (PDX) to Shannon, and you're most likely to touch down at Shannon Airport (SNN). This is the airline's primary hub in this city.
What kind of luggage can I take on an Aer Lingus flight from Portland Intl. Airport (PDX) to Shannon Airport (SNN)?
Aer Lingus allows you to bring 1 checked-in bag weighing up to 50 lb with maximum dimensions of 62 inches on standard economy flights from PDX to SNN. You can also bring 1 cabin bag with you in the cabin. This hand luggage must not exceed 21 inches x 15 inches x 9 inches and weigh less than 22 lb. Baggage policies can differ based on the cabin class and fare type, so check your booking or Aer Lingus's website to avoid paying additional costs at the airport.
Why fly with Aer Lingus from PDX to SNN?
With a rewarding loyalty program and a 4-star airline rating, Aer Lingus is the leading choice for many travelers flying from PDX to SNN. Also, if you're an Aer Lingus AerClub and One Key™ member booking through Expedia, you could earn OneKeyCash™* on eligible flights on top of your airline miles, which can be used on future trips.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.
Can I change or cancel my Aer Lingus flight from Portland Intl. Airport (PDX) to Shannon Airport (SNN)?
Typically, you can cancel or reschedule your flight, although there may be a charge if your booking was made more than 24 hours ago. Prefer to keep your options open? Use our "Changes included" and "No cancel fee" filters to find flights that won't charge you extra if you have to adjust your plans. To make changes, head to "Trips," select your flight and click on "Manage Booking" for more details.

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*Available to One Key members.