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$686+ 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 8/18. Fares are subject to change and may not be available on all flights or dates of travel.
SNN — PDX
Aug 31 — Sep 71
Mon 8/31
Mon 9/7
1 adult, Economy
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Cheap flight deals from Shannon to Portland

Cheapest flights from Shannon to Portland
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 August 1, 2026.

This KLM deal was found by Cheapflights users on 7/30. 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.
Fri 8/281:05 pm
SNN
-
PDX
1 stop16h 08m
KLM
Fri 9/410:35 pm
PDX
-
SNN
1 stop28h 35m
KLM
Deal found 7/30$1,014
This United Airlines deal was found by Cheapflights users on 7/30. 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 8/279:30 am
SNN
-
PDX
2 stops16h 49m
United Airlines
Thu 9/38:40 am
PDX
-
SNN
2 stops14h 50m
United Airlines
Deal found 7/30$1,015
This United Airlines deal was found by Cheapflights users on 7/31. 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 8/2812:30 pm
SNN
-
PDX
2 stops18h 24m
United Airlines
Fri 9/45:00 am
PDX
-
SNN
2 stops18h 30m
United Airlines
Deal found 7/31$1,022
This SmartFares deal was found by Cheapflights users on 7/31. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/179:30 am
SNN
-
PDX
1 stop17h 23m
Lufthansa
Fri 8/218:15 am
PDX
-
SNN
1 stop15h 15m
Lufthansa
Deal found 7/31$1,383
This United Airlines deal was found by Cheapflights users on 7/31. 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 8/179:30 am
SNN
-
PDX
2 stops16h 20m
United Airlines
Fri 8/217:16 am
PDX
-
SNN
2 stops18h 59m
United Airlines
Deal found 7/31$1,415
This Air Canada deal was found by Cheapflights users on 7/30. 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 8/287:30 am
SNN
-
PDX
3 stops19h 41m
Multiple Airlines
Fri 9/47:45 pm
PDX
-
SNN
2 stops40h 50m
Multiple Airlines
Deal found 7/30$1,580
This Air Canada deal was found by Cheapflights users on 7/31. 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 8/177:30 am
SNN
-
PDX
3 stops19h 41m
Multiple Airlines
Fri 8/217:45 pm
PDX
-
SNN
2 stops40h 50m
Multiple Airlines
Deal found 7/31$1,635

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 August 1, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$1,014
(KLM)

One-way from

$686
(Kiwi.com)
Provider with most accurate pricing for Shannon-Portland flight deals.
Search Deals
Provider most trusted by Cheapflights users for Shannon-Portland flights.
Search Deals
From Shannon to Portland
Search Deals
One-way flight from Shannon to Portland
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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 August 1, 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

Price

Cheapest round-trip

ShannonPortland

SNN - PDX

SNNPDX

Shannon

Fri 8/28

1:05 pm-9:13 pm

1 stop16h 08m

Portland

Fri 9/4

10:35 pm-11:10 am

1 stop28h 35m

$1,014

ShannonPortland

SNN - PDX

SNNPDX

Shannon

Thu 8/27

9:30 am-6:19 pm

2 stops16h 49m

Portland

Thu 9/3

8:40 am-7:30 am

2 stops14h 50m

$1,015
Quickest round-trip

ShannonPortland

SNN - PDX

SNNPDX

Shannon

Fri 1/15

7:50 am-3:50 pm

1 stop16h 00m

Portland

Mon 1/18

5:45 pm-4:45 pm

1 stop15h 00m

$1,020

ShannonPortland

SNN - PDX

SNNPDX

Shannon

Fri 8/28

9:30 am-8:59 pm

2 stops19h 29m

Portland

Fri 9/4

8:15 am-7:30 am

1 stop15h 15m

$1,022
Cheapest one-way

ShannonPortland

SNN - PDX

SNNPDX

Shannon

Mon 8/10

4:00 pm-1:50 pm

3 stops53h 50m

$713

ShannonPortland

SNN - PDX

SNNPDX

Shannon

Tue 8/18

1:35 pm-8:47 pm

2 stops39h 12m

$767

ShannonPortland

SNN - PDX

SNNPDX

Shannon

Tue 8/18

2:30 pm-9:50 am

1 stop27h 20m

$831
Quickest one-way

ShannonPortland

SNN - PDX

SNNPDX

Shannon

Mon 8/10

7:30 am-5:40 pm

1 stop18h 10m

$1,394

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/30

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 August.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • 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.
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.

  • How long is the flight from Shannon, Clare to Portland?

    For as low as $1,020, KLM can have you in Portland from Shannon, Clare in 16h. There are 4595 mi between Shannon, Clare and Portland. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

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

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

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

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

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

See more FAQs

Traveling to a place near Portland?

Book flights to Portland if you plan to visit one of these locations
Beaverton
Seaside
Vancouver
Lincoln City
Longview
Lake Oswego
Hillsboro
Kelso
Clackamas
Troutdale
Cannon Beach
McMinnville
The Dalles
Wilsonville
Depoe Bay
Stevenson
Tillamook
Astoria
Gresham
Silverton

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