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Shannon

$500+ Cheap flights from Portland (PDX) to Shannon (SNN)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/8. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — SNN
Jul 8 — Jul 151
Tue 7/8
Tue 7/15
1 adult, Economy
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Cheap flight deals from Portland to Shannon

Discover tips and strategies to find the most affordable flight options for your journey from Portland (PDX) to Shannon (SNN). 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 July 3, 2025.

Round-trip from

$500
(American Airlines)

Popular in

April

Cheapest in

November

Average price

$881
From Portland to Shannon
Search Deals
Highest demand for flights based on searches. 18% potential increase in price ($178 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($34 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2025
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Find flight deals from Portland to Shannon

Cheapest flights from Portland to Shannon
Explore the most affordable flight options available from Portland to Shannon. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 3, 2025.

This American Airlines deal was found by Cheapflights users on 7/1. 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 10/81:16 pmPDX - SNN
2 stops18h 54mAmerican Airlines
Tue 11/47:50 amSNN - PDX
2 stops20h 50mAmerican Airlines
Deal found 7/1$500
This United Airlines deal was found by Cheapflights users on 7/3. 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 9/1110:51 amPDX - SNN
1 stop12h 39mUnited Airlines
Wed 9/2412:30 pmSNN - PDX
1 stop17h 07mUnited Airlines
Deal found 7/3$517
This Air Canada deal was found by Cheapflights users on 7/2. 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.
Wed 11/123:15 pmPDX - SNN
2 stops17h 30mAir Canada
Sun 11/167:50 amSNN - PDX
2 stops33h 25mAir Canada
Deal found 7/2$686
This British Airways deal was found by Cheapflights users on 7/1. 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.
Tue 10/77:25 pmPDX - SNN
1 stop17h 10mBritish Airways
Thu 11/65:30 pmSNN - PDX
1 stop31h 05mBritish Airways
Deal found 7/1$688
This Air Canada deal was found by Cheapflights users on 7/2. 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.
Thu 11/209:50 amPDX - SNN
2 stops25h 35mMultiple Airlines
Tue 12/27:50 amSNN - PDX
3 stops33h 25mMultiple Airlines
Deal found 7/2$716
This Air France deal was found by Cheapflights users on 7/3. 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 France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/171:25 pmPDX - SNN
1 stop13h 45mAir France
Sun 7/271:05 pmSNN - PDX
1 stop16h 25mAir France
Deal found 7/3$808

Cheapflights Fare Finder

Customize your flight search to find flights from Portland to Shannon 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 July 3, 2025.
Use the filters below to find and compare flights from Portland to Shannon that are best for you.

Fly from

Portland

Fly to

Shannon

Route

Depart

Return

Price

PortlandShannon

PDX - SNN

PDXSNN

Portland

Wed 10/8

1:16 pm-4:10 pm

2 stops18h 54m

Shannon

Tue 11/4

7:50 am-8:40 pm

2 stops20h 50m

$500

PortlandShannon

PDX - SNN

PDXSNN

Portland

Thu 9/11

10:51 am-7:30 am

1 stop12h 39m

Shannon

Wed 9/24

12:30 pm-9:37 pm

1 stop17h 07m

$517

PortlandShannon

PDX - SNN

PDXSNN

Portland

Tue 10/7

7:25 pm-8:35 pm

1 stop17h 10m

Shannon

Thu 11/6

5:30 pm-4:35 pm

1 stop31h 05m

$688

PortlandShannon

PDX - SNN

PDXSNN

Portland

Thu 11/20

9:50 am-7:25 pm

2 stops25h 35m

Shannon

Tue 12/2

7:50 am-9:15 am

3 stops33h 25m

$716

PortlandShannon

PDX - SNN

PDXSNN

Portland

Thu 7/17

1:25 pm-11:10 am

1 stop13h 45m

Shannon

Sun 7/27

1:05 pm-9:30 pm

1 stop16h 25m

$808

PortlandShannon

PDX - SNN

PDXSNN

Portland

Thu 11/20

7:00 am-11:30 am

3 stops20h 30m

Shannon

Tue 12/2

7:50 am-9:15 am

3 stops33h 25m

$833

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/1

Best time to book a flight from Portland to Shannon

Have a flexible travel schedule? Discover the best time to fly to Shannon from Portland 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.

Cheapflights Insights

Everything you need to know about your flight from Portland to Shannon

What is the cheapest time of day to fly from PDX to SNN?

Find hourly flight availability from Portland to Shannon. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 3, 2025.

It’s optimal to fly from Portland to Shannon, Clare at noon. By choosing this option you can save up to 41% on the cost of your flight, compared to a flight in the evening.

How much does it cost to fly round-trip from Portland to Shannon, Clare?

Reviews of airlines servicing Shannon

Get insights into the airlines that provide service to Shannon. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Shannon. Reviews last updated July 3, 2025.
Get a feel of what it's like to fly with Air France, United Airlines, and American Airlines from Portland to Shannon by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Air France
7.5
Good
1,465 reviews

Boarding

7.4

Entertainment

7.0

Crew

8.2

Food

7.0

Overall

7.5

Comfort

7.4

Reviews

1 / 20
10.0
Excellent

SYLVIA,Apr 2025

TLV - CDG

A newer plane. The flight from TelAviv to Paris was on a new aircraft, wider seat. ,more privacy. Nice toilets. The flight from Paris to Santiago Chile was on a very old aircraft. Awful toilets, outmoded sits etc.
Air France
7.5
Good
1,465 reviews
Air France
7.5
Good
1,465 reviews

Boarding

7.4

Entertainment

7.0

Crew

8.2

Food

7.0

Overall

7.5

Comfort

7.4

Reviews

1 / 20
10.0
Excellent

SYLVIA,Apr 2025

TLV - CDG

A newer plane. The flight from TelAviv to Paris was on a new aircraft, wider seat. ,more privacy. Nice toilets. The flight from Paris to Santiago Chile was on a very old aircraft. Awful toilets, outmoded sits etc.
United Airlines
7.4
Good
8,861 reviews
Air France
7.5
Good
1,465 reviews

Boarding

7.4

Entertainment

7.0

Crew

8.2

Food

7.0

Overall

7.5

Comfort

7.4

Reviews

1 / 20
10.0
Excellent

SYLVIA,Apr 2025

TLV - CDG

A newer plane. The flight from TelAviv to Paris was on a new aircraft, wider seat. ,more privacy. Nice toilets. The flight from Paris to Santiago Chile was on a very old aircraft. Awful toilets, outmoded sits etc.
American Airlines
7.2
Good
10,000 reviews
Air France
7.5
Good
1,465 reviews

Boarding

7.4

Entertainment

7.0

Crew

8.2

Food

7.0

Overall

7.5

Comfort

7.4

Reviews

1 / 20
10.0
Excellent

SYLVIA,Apr 2025

TLV - CDG

A newer plane. The flight from TelAviv to Paris was on a new aircraft, wider seat. ,more privacy. Nice toilets. The flight from Paris to Santiago Chile was on a very old aircraft. Awful toilets, outmoded sits etc.
Air Canada
7.1
Good
9,681 reviews
Air France
7.5
Good
1,465 reviews

Boarding

7.4

Entertainment

7.0

Crew

8.2

Food

7.0

Overall

7.5

Comfort

7.4

Reviews

1 / 20
10.0
Excellent

SYLVIA,Apr 2025

TLV - CDG

A newer plane. The flight from TelAviv to Paris was on a new aircraft, wider seat. ,more privacy. Nice toilets. The flight from Paris to Santiago Chile was on a very old aircraft. Awful toilets, outmoded sits etc.
British Airways
6.6
Okay
7,093 reviews
Air France
7.5
Good
1,465 reviews

Boarding

7.4

Entertainment

7.0

Crew

8.2

Food

7.0

Overall

7.5

Comfort

7.4

Reviews

1 / 20
10.0
Excellent

SYLVIA,Apr 2025

TLV - CDG

A newer plane. The flight from TelAviv to Paris was on a new aircraft, wider seat. ,more privacy. Nice toilets. The flight from Paris to Santiago Chile was on a very old aircraft. Awful toilets, outmoded sits etc.

Related info for your journey

Find useful and relevant information for your journey from Portland to Shannon. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What are the cheapest airlines flying from Portland to Shannon, Clare round-trip?

    According to our current data, American Airlines ($500), United Airlines ($517), and British Airways ($688) offers the cheapest pricing from Portland to Shannon, Clare. American Airlines is currently priced 36% below the average price you’ll pay for this route.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Portland to Shannon 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 Portland to Shannon, Clare?

    Currently, February is the cheapest month in which you can book a flight from Portland to Shannon, Clare (average of $533). Flying from Portland to Shannon, Clare in June is currently the most expensive (average of $938). 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.

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Top 3 airlines flying from Portland to Shannon

Discover the top 3 airlines that operate flights from Portland to Shannon. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$453Average$849FlexibilityNo cancel feeOn-time71%
DeltaCheapest$546Average$855FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$561Average$773FlexibilityNo cancel feeOn-time69%

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