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$428+ 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 6/5. Fares are subject to change and may not be available on all flights or dates of travel.
SNN — PDX
Apr 11 — Apr 181
Sat 4/11
Sat 4/18
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 March 12, 2026.

This United Airlines deal was found by Cheapflights users on 3/9. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/712:30 pm
SNN
-
PDX
1 stop16h 36m
United Airlines
Mon 5/1110:55 pm
PDX
-
SNN
2 stops27h 20m
United Airlines
Deal found 3/9$941
This British Airways deal was found by Cheapflights users on 3/9. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/17:30 am
SNN
-
PDX
2 stops24h 45m
British Airways
Fri 5/86:22 am
PDX
-
SNN
2 stops20h 58m
British Airways
Deal found 3/9$970
This oojo deal was found by Cheapflights users on 3/9. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/19:15 pm
SNN
-
PDX
1 stop28h 25m
Multiple Airlines
Fri 5/88:30 pm
PDX
-
SNN
2 stops40h 05m
Multiple Airlines
Deal found 3/9$1,031
This American Airlines deal was found by Cheapflights users on 3/11. 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.
Wed 4/19:15 pm
SNN
-
PDX
1 stop28h 25m
American Airlines
Thu 5/712:59 am
PDX
-
SNN
2 stops20h 26m
American Airlines
Deal found 3/11$1,089
This British Airways deal was found by Cheapflights users on 3/6. 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 5/77:30 am
SNN
-
PDX
1 stop18h 10m
British Airways
Mon 5/117:30 pm
PDX
-
SNN
1 stop17h 05m
British Airways
Deal found 3/6$1,167

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 March 12, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$941
(United Airlines)

One-way from

$428
(Kiwi.com)
Provider with most accurate pricing for Shannon-Portland flight deals.
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Provider most trusted by Cheapflights users for Shannon-Portland flights.
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From Shannon to Portland
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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 March 12, 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
Quickest round-trip

ShannonPortland

SNN - PDX

SNNPDX

Shannon

Thu 5/7

12:30 pm-9:06 pm

1 stop16h 36m

Portland

Mon 5/11

10:55 pm-10:15 am

2 stops27h 20m

$941

ShannonPortland

SNN - PDX

SNNPDX

Shannon

Wed 4/1

7:30 am-12:15 am

2 stops24h 45m

Portland

Fri 5/8

6:22 am-11:20 am

2 stops20h 58m

$970
Cheapest one-way
Quickest one-way

ShannonPortland

SNN - PDX

SNNPDX

Shannon

Fri 6/5

5:00 pm-9:09 pm

3 stops36h 09m

$428

ShannonPortland

SNN - PDX

SNNPDX

Shannon

Thu 5/28

12:15 pm-2:12 pm

3 stops57h 57m

$479

ShannonPortland

SNN - PDX

SNNPDX

Shannon

Wed 8/5

6:45 pm-8:20 pm

3 stops57h 35m

$684

ShannonPortland

SNN - PDX

SNNPDX

Shannon

Thu 8/6

10:40 am-9:36 am

3 stops54h 56m

$690

ShannonPortland

SNN - PDX

SNNPDX

Shannon

Fri 8/7

10:50 pm-5:55 pm

3 stops51h 05m

$737

ShannonPortland

SNN - PDX

SNNPDX

Shannon

Sat 7/4

1:35 pm-2:12 pm

2 stops56h 37m

$761

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/8

Sorted by cheapest first
  • 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 $941, United Airlines can have you in Portland from Shannon, Clare in 16h 36m. There are 4595 mi between Shannon, Clare and Portland.

  • 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
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Hillsboro
Troutdale
Cannon Beach
Long Beach
McMinnville
Tigard
The Dalles
Beaverton
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Pacific City
Astoria

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