$524+ Cheap flights from Shannon (SNN) to Portland (PDX)
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 6/2. Fares are subject to change and may not be available on all flights or dates of travel.
SNN — PDX
May 30 — Jun 61
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Find cheap flights from Shannon to Portland 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
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
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 Shannon to Portland
Cheapest
Best
Last-minute
One-way
Cheapest flights from Shannon to PortlandExplore the most affordable flight options available from Shannon to Portland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 30, 2026.
Explore the most affordable flight options available from Shannon to Portland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 30, 2026.
This United Airlines deal was found by Cheapflights users on 4/25. 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.
Tue 6/29:30 am
SNN
- PDX
2 stops21h 19m
United Airlines
Tue 9/17:13 am
PDX
- SNN
2 stops19h 02m
United Airlines
Deal found 4/25![United Airlines logo]()
$1,021
This Delta deal was found by Cheapflights users on 4/27. 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.
Thu 6/111:05 pm
SNN
- PDX
1 stop16h 06m
Delta
Thu 6/1810:35 pm
PDX
- SNN
1 stop28h 35m
Delta
Deal found 4/27![Delta logo]()
$1,023
This KLM deal was found by Cheapflights users on 4/27. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/111:05 pm
SNN
- PDX
2 stops35h 14m
KLM
Thu 6/1810:35 pm
PDX
- SNN
1 stop28h 35m
KLM
Deal found 4/27![KLM logo]()
$1,048
This American Airlines deal was found by Cheapflights users on 4/25. 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.
Tue 5/121:45 pm
SNN
- PDX
2 stops29h 16m
American Airlines
Sat 5/1611:47 pm
PDX
- SNN
2 stops21h 38m
American Airlines
Deal found 4/25![American Airlines logo]()
$1,063
This United Airlines deal was found by Cheapflights users on 4/29. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/1612:30 pm
SNN
- PDX
1 stop16h 36m
United Airlines
Wed 5/2011:55 pm
PDX
- SNN
1 stop23h 35m
United Airlines
Deal found 4/29![United Airlines logo]()
$1,144
This KLM deal was found by Cheapflights users on 4/27. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/111:05 pm
SNN
- PDX
2 stops35h 14m
Multiple Airlines
Thu 6/188:28 pm
PDX
- SNN
2 stops30h 42m
Multiple Airlines
Deal found 4/27![Multiple Airlines logo]()
$1,168
This lol.travel deal was found by Cheapflights users on 4/25. 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 lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/127:30 am
SNN
- PDX
1 stop18h 10m
Aer Lingus
Sat 5/167:30 pm
PDX
- SNN
1 stop12h 35m
Aer Lingus
Deal found 4/25![Aer Lingus logo]()
$1,198
This Air Canada deal was found by Cheapflights users on 4/25. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/27:30 am
SNN
- PDX
3 stops23h 00m
Multiple Airlines
Tue 9/17:45 pm
PDX
- SNN
2 stops40h 50m
Multiple Airlines
Deal found 4/25![Multiple Airlines logo]()
$1,328
This United Airlines deal was found by Cheapflights users on 4/25. 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.
Tue 5/1212:30 pm
SNN
- PDX
2 stops18h 05m
United Airlines
Sat 5/165:30 am
PDX
- SNN
3 stops20h 45m
United Airlines
Deal found 4/25![United Airlines logo]()
$1,490
Best flights from Shannon to PortlandDiscover carefully curated flight deals from Shannon to Portland that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 30, 2026.
Discover carefully curated flight deals from Shannon to Portland that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 30, 2026.
This United Airlines deal was found by Cheapflights users on 4/25. 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.
Tue 6/29:30 am
SNN
- PDX
2 stops21h 19m
United Airlines
Tue 9/17:13 am
PDX
- SNN
2 stops19h 02m
United Airlines
Deal found 4/25![United Airlines logo]()
$1,021
This Mytrip deal was found by Cheapflights users on 4/25. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/29:15 pm
SNN
- PDX
3 stops29h 55m
Multiple Airlines
Tue 9/13:30 pm
PDX
- SNN
3 stops24h 05m
Multiple Airlines
Deal found 4/25![Multiple Airlines logo]()
$1,543
This Air Canada deal was found by Cheapflights users on 4/25. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/127:30 am
SNN
- PDX
3 stops23h 05m
Air Canada
Sat 5/167:00 am
PDX
- SNN
3 stops20h 20m
Air Canada
Deal found 4/25![Air Canada logo]()
$2,010
This United Airlines deal was found by Cheapflights users on 4/29. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/1612:30 pm
SNN
- PDX
1 stop16h 36m
United Airlines
Wed 5/2011:55 pm
PDX
- SNN
1 stop23h 35m
United Airlines
Deal found 4/29![United Airlines logo]()
$1,144
This United Airlines deal was found by Cheapflights users on 4/25. 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.
Tue 5/1212:30 pm
SNN
- PDX
2 stops18h 05m
United Airlines
Sat 5/165:30 am
PDX
- SNN
3 stops20h 45m
United Airlines
Deal found 4/25![United Airlines logo]()
$1,490
This United Airlines deal was found by Cheapflights users on 4/27. 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 8/219:30 am
SNN
- PDX
1 stop14h 00m
United Airlines
Fri 8/217:13 pm
PDX
- SNN
2 stops28h 17m
United Airlines
Deal found 4/27![United Airlines logo]()
$1,793
This United Airlines deal was found by Cheapflights users on 4/27. 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 8/2012:30 pm
SNN
- PDX
2 stops18h 21m
United Airlines
Fri 8/2110:45 am
PDX
- SNN
1 stop12h 45m
United Airlines
Deal found 4/27![United Airlines logo]()
$1,798
Last-minute flights from Shannon to PortlandDiscover last-minute flight deals from Shannon to Portland. Data last updated April 30, 2026 and is based on user searches.
Discover last-minute flight deals from Shannon to Portland. Data last updated April 30, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 4/25. 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.
Tue 5/121:45 pm
SNN
- PDX
2 stops29h 16m
American Airlines
Sat 5/1611:47 pm
PDX
- SNN
2 stops21h 38m
American Airlines
Deal found 4/25![American Airlines logo]()
$1,063
This lol.travel deal was found by Cheapflights users on 4/25. 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 lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/127:30 am
SNN
- PDX
1 stop18h 10m
Aer Lingus
Sat 5/167:30 pm
PDX
- SNN
1 stop12h 35m
Aer Lingus
Deal found 4/25![Aer Lingus logo]()
$1,198
This United Airlines deal was found by Cheapflights users on 4/25. 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.
Tue 5/1212:30 pm
SNN
- PDX
2 stops18h 05m
United Airlines
Sat 5/165:30 am
PDX
- SNN
3 stops20h 45m
United Airlines
Deal found 4/25![United Airlines logo]()
$1,490
This Air Canada deal was found by Cheapflights users on 4/25. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/127:30 am
SNN
- PDX
3 stops23h 05m
Air Canada
Sat 5/167:00 am
PDX
- SNN
3 stops20h 20m
Air Canada
Deal found 4/25![Air Canada logo]()
$2,010
This United Airlines deal was found by Cheapflights users on 4/29. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/1612:30 pm
SNN
- PDX
1 stop16h 36m
United Airlines
Wed 5/2011:55 pm
PDX
- SNN
1 stop23h 35m
United Airlines
Deal found 4/29![United Airlines logo]()
$1,144
This Mytrip deal was found by Cheapflights users on 4/29. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/165:25 pm
SNN
- PDX
2 stops32h 35m
Multiple Airlines
Wed 5/2010:10 am
PDX
- SNN
3 stops26h 25m
Multiple Airlines
Deal found 4/29![Multiple Airlines logo]()
$2,450
One-way flights from Shannon to PortlandSearch for one-way flight options from Shannon to Portland. Find affordable one-way fares based on user searches. Data last updated April 30, 2026.
Search for one-way flight options from Shannon to Portland. Find affordable one-way fares based on user searches. Data last updated April 30, 2026.
This Kiwi.com deal was found by Cheapflights users on 4/25. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/26:10 pm
SNN
- PDX
3 stops51h 40m
Multiple Airlines
Deal found 4/25![Multiple Airlines logo]()
$524
This Kiwi.com deal was found by Cheapflights users on 4/29. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/158:15 pm
SNN
- PDX
3 stops45h 13m
Multiple Airlines
Deal found 4/29![Multiple Airlines logo]()
$605
This Priceline deal was found by Cheapflights users on 4/29. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/157:30 am
SNN
- PDX
1 stop18h 10m
British Airways
Deal found 4/29![British Airways logo]()
$764
This Priceline deal was found by Cheapflights users on 4/25. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/27:30 am
SNN
- PDX
1 stop18h 10m
British Airways
Deal found 4/25![British Airways logo]()
$908
Find flight deals from Shannon to Portland
Discover tips and strategies to find the most affordable flight options for your journey from Shannon (SNN) to Portland (PDX). 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 April 30, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $1,021 (United Airlines) |
One-way from | $524 (Kiwi.com) |
Cheapflights Fare Finder
Customize your flight search to find flights from Shannon to Portland 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 April 30, 2026.
Use the filters below to find and compare flights from Shannon to Portland that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
ShannonPortland
SNN - PDX
SNNPDX
Shannon
Tue 6/2
9:30 am-10:49 pm
2 stops21h 19m
Portland
Tue 9/1
7:13 am-10:15 am
2 stops19h 02m
$1,021
ShannonPortland
SNN - PDX
SNNPDX
Shannon
Sat 5/16
12:30 pm-9:06 pm
1 stop16h 36m
Portland
Wed 5/20
11:55 pm-7:30 am
1 stop23h 35m
$1,144
ShannonPortland
SNN - PDX
SNNPDX
Shannon
Tue 5/12
12:30 pm-10:35 pm
2 stops18h 05m
Portland
Sat 5/16
5:30 am-10:15 am
3 stops20h 45m
$1,490
ShannonPortland
SNN - PDX
SNNPDX
Shannon
Tue 6/2
9:15 pm-7:10 pm
3 stops29h 55m
Portland
Tue 9/1
3:30 pm-11:35 pm
3 stops24h 05m
$1,543
ShannonPortland
SNN - PDX
SNNPDX
Shannon
Fri 8/21
9:30 am-3:30 pm
1 stop14h 00m
Portland
Fri 8/21
7:13 pm-7:30 am
2 stops28h 17m
$1,793
Quickest round-trip
ShannonPortland
SNN - PDX
SNNPDX
Shannon
Thu 8/20
12:30 pm-10:51 pm
2 stops18h 21m
Portland
Fri 8/21
10:45 am-7:30 am
1 stop12h 45m
$1,798
ShannonPortland
SNN - PDX
SNNPDX
Shannon
Tue 5/12
7:30 am-10:35 pm
3 stops23h 05m
Portland
Sat 5/16
7:00 am-11:20 am
3 stops20h 20m
$2,010
Cheapest one-way
ShannonPortland
SNN - PDX
SNNPDX
Shannon
Thu 10/15
8:15 pm-9:28 am
3 stops45h 13m
$605
ShannonPortland
SNN - PDX
SNNPDX
Shannon
Tue 6/2
8:00 am-1:50 pm
2 stops37h 50m
$625
Quickest one-way
ShannonPortland
SNN - PDX
SNNPDX
Shannon
Tue 6/2
7:30 am-5:40 pm
1 stop18h 10m
$908
Sorted by cheapest first
Compare providers for flights from Shannon to Portland
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Shannon to Portland in April.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Shannon, Clare-Portland flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Shannon, Clare-Portland flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Shannon, Clare-Portland flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Shannon, Clare-Portland flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Shannon, Clare-Portland flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Shannon to Portland
Have a flexible travel schedule? Discover the best time to fly to Portland from Shannon with our price prediction graph.
SNN-PDX
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.
Related info for your journey
Find useful and relevant information for your journey from Shannon to Portland. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Portland?
Book flights to Portland if you plan to visit one of these locationsBeaverton
Seaside
Vancouver
Lincoln City
Longview
Lake Oswego
Hillsboro
Clackamas
Troutdale
Cannon Beach
Long Beach
McMinnville
Tigard
The Dalles
Wilsonville
Depoe Bay
Stevenson
Tillamook
Astoria
Pacific City
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes
Complete your trip
Flights by cabin class
Other flight options
Other flights from Shannon
Popular flights
Portland flight routes