$503 Cheap Flights from Pasco (PSC) to Shannon (SNN)

View $503 flight on Sun, Nov 16, 2025Opens in a new window

Popular airlines from Tri-Cities Airport (PSC) to Shannon Airport (SNN)

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Cheap Flights from Pasco to Shannon (PSC-SNN)

Prices were available within the past 7 days and start at $503 for one-way flights and for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frequently asked questions

How much does a flight from Tri-Cities Airport (PSC) to Shannon Airport (SNN) cost?
Secure a cheap one-way flight from $503 or cheap return flight from Tri-Cities Airport (PSC) to Shannon Airport (SNN) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from Tri-Cities Airport (PSC) to Shannon Airport (SNN)?
is the least expensive month to fly from PSC to SNN. Planning your trip for the off-season is often the key to scoring lower fares.
What is the cheapest airline that flies from Tri-Cities Airport (PSC) to Shannon Airport (SNN)?
To find the cheapest airline flying from PSC to SNN, use Expedia's filter tool. Customize your search based on your travel style, such as preferred carriers and flight duration. You can then sort your results by "Price (lowest to highest)" to see the cheapest fares upfront.
How many flights per day from Tri-Cities Airport (PSC) to Shannon Airport (SNN)?
Nonstop flights from Tri-Cities Airport (PSC) to Shannon Airport (SNN) aren't available daily, so you'll have to take a flight with a layover. Explore your options with Expedia's filters. Enter your travel details and pick either "1 Stop" or "2+ Stops."
What day of the week has the most flights from PSC to SNN?
You'll typically find Tuesday the quietest day for flights, while Fridays are often the busiest.* However this can change from season to season and during public holidays or peak travel times.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Tri-Cities Airport (PSC) to Shannon Airport (SNN)?
Choose a flight from Tri-Cities Airport (PSC) to Shannon Airport (SNN) that leaves before 3 PM to reduce the risk of delays and cancellations. Departures after this hour have a 22% higher chance of being canceled, on average.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Tri-Cities Airport (PSC) to Shannon Airport (SNN) last-minute?
Booking your ticket from PSC to SNN right before your journey is usually more expensive. But if there's some wiggle room with your schedule, you could score a cheap last-minute fare.
Is it cheaper to book a PSC to SNN flight and hotel package?
Compared with arranging hotels and flights separately, booking a PSC to SNN flight and hotel package with Expedia could result in significant savings. Better still, managing everything in one place will take the hassle out of planning your trip. Just secure your flights and choose from our extensive range of stays, then personalize your trip with other add-ons like tours and car rentals.
Can I cancel or change the date of my flight from Tri-Cities Airport (PSC) to Shannon Airport (SNN)?
In most cases, you can cancel or reschedule your PSC to SNN flight. However, there may be additional fees, especially if you made your booking over 24 hours ago. Double-check your itinerary for the airline's rules and fees on flight changes, or if you'd like more details, visit our Customer Service portal.

Travel information

Origin airport
Tri-Cities
Destination airport
Shannon
Distance
4458 mi

Book with confidence

Pasco to Shannon Flights

The cheapest times to fly from Pasco to Shannon

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Pasco to Shannon are during the month of . You can find some of the cheapest flights from Pasco to Shannon with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Pasco to Shannon

Sunday is one of the best days to book for cheap flights from Pasco to Shannon: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Pasco to Shannon

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Pasco to Shannon in 2025. You can also book with separate airlines for your outbound and return journeys, from $503 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Pasco to Shannon flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Pasco to Shannon airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Pasco to Shannon Flights

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*Available to One Key members.