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$885+ 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 10/1. Fares are subject to change and may not be available on all flights or dates of travel.
SNN — PDX
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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Cheap 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 September 11, 2025.

Round-trip from

$891
(United Airlines)

One-way from

$885
(Cheapflightsfares)
From Shannon to Portland
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One-way flight from Shannon to Portland
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Find 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 September 11, 2025.

This United Airlines deal was found by Cheapflights users on 9/11. 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 9/2712:30 pmSNN - PDX
2 stops18h 00mUnited Airlines
Wed 10/15:30 amPDX - SNN
3 stops20h 45mUnited Airlines
Deal found 9/11$891
This British Airways deal was found by Cheapflights users on 9/10. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/275:30 pmSNN - PDX
1 stop30h 25mBritish Airways
Mon 12/15:45 pmPDX - SNN
1 stop33h 45mBritish Airways
Deal found 9/10$931
This American Airlines deal was found by Cheapflights users on 9/9. 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.
Thu 11/277:50 amSNN - PDX
2 stops36h 46mAmerican Airlines
Mon 12/11:26 pmPDX - SNN
2 stops38h 04mAmerican Airlines
Deal found 9/9$937
This American Airlines deal was found by Cheapflights users on 9/11. 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 10/137:40 amSNN - PDX
2 stops19h 49mMultiple Airlines
Fri 10/316:45 pmPDX - SNN
1 stop33h 45mMultiple Airlines
Deal found 9/11$1,008
This Gotogate deal was found by Cheapflights users on 9/11. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/137:40 amSNN - PDX
2 stops21h 56mBritish Airways
Fri 10/318:46 amPDX - SNN
2 stops19h 44mBritish Airways
Deal found 9/11$1,021
This Mytrip deal was found by Cheapflights users on 9/11. 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 9/277:40 amSNN - PDX
3 stops35h 31mMultiple Airlines
Wed 10/19:55 amPDX - SNN
3 stops22h 15mMultiple Airlines
Deal found 9/11$1,737

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 September 11, 2025.
Use the filters below to find and compare flights from Shannon to Portland that are best for you.

Fly from

Shannon

Fly to

Portland

Route

Depart

Return

Price

ShannonPortland

SNN - PDX

SNNPDX

Shannon

Sat 9/27

12:30 pm-9:26 pm

1 stop16h 56m

Portland

Wed 10/1

10:50 am-10:15 am

2 stops15h 25m

$891

ShannonPortland

SNN - PDX

SNNPDX

Shannon

Thu 11/27

5:30 pm-3:55 pm

1 stop30h 25m

Portland

Mon 12/1

5:45 pm-11:30 am

1 stop33h 45m

$931

ShannonPortland

SNN - PDX

SNNPDX

Shannon

Thu 11/27

7:50 am-12:36 pm

2 stops36h 46m

Portland

Mon 12/1

1:26 pm-11:30 am

2 stops38h 04m

$937

ShannonPortland

SNN - PDX

SNNPDX

Shannon

Mon 10/13

7:40 am-7:29 pm

2 stops19h 49m

Portland

Fri 10/31

6:45 pm-11:30 am

1 stop33h 45m

$1,008

ShannonPortland

SNN - PDX

SNNPDX

Shannon

Mon 10/13

7:40 am-9:36 pm

2 stops21h 56m

Portland

Fri 10/31

8:46 am-11:30 am

2 stops19h 44m

$1,021

ShannonPortland

SNN - PDX

SNNPDX

Shannon

Wed 10/1

2:35 pm-12:15 am

2 stops17h 40m

$885

ShannonPortland

SNN - PDX

SNNPDX

Shannon

Wed 10/1

9:15 pm-5:35 pm

1 stop28h 20m

$935

ShannonPortland

SNN - PDX

SNNPDX

Shannon

Wed 10/1

7:40 am-10:25 pm

3 stops22h 45m

$1,471

ShannonPortland

SNN - PDX

SNNPDX

Shannon

Tue 9/30

4:55 pm-5:35 pm

1 stop32h 40m

$3,053

ShannonPortland

SNN - PDX

SNNPDX

Shannon

Tue 9/30

7:40 am-8:35 pm

2 stops20h 55m

$3,169

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

Showing 1-10 of 11 results
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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 $891, United Airlines can have you in Portland from Shannon, Clare in 16h 56m. 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.

  • What are the cheapest airlines to fly from Shannon, Clare to Portland one-way?

    To fly one-way, consider booking your trip with Aer Lingus, which is currently one of the cheapest options available, starting at $935. Air Canada flights start at $1,471 while deals on British Airways start at $3,169 one-way.

  • 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.

  • What is the cheapest month to book a flight from Shannon, Clare to Portland?

    Currently, November is the cheapest month in which you can book a flight from Shannon, Clare to Portland (average of $277). Flying from Shannon, Clare to Portland in March is currently the most expensive (average of $368). 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 Portland?

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

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