$451 Cheap Flights from Sacramento (SMF) to Shannon (SNN)

View $451 flight on Mon, Sep 8, 2025Opens in a new window

Popular airlines from Sacramento Intl. Airport (SMF) to Shannon Airport (SNN)

Cheap Flights from Sacramento to Shannon (SMF-SNN)

Prices were available within the past 7 days and start at $451 for one-way flights and $586 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Sun, Aug 3 - Tue, Aug 19
SMF
Sacramento
SNN
Shannon
$586 Roundtrip, found 22 hours ago
$586
Roundtrip
found 22 hours ago
Select United flight, departing Sun, Aug 3 from Sacramento to Shannon, returning Tue, Aug 19, priced at $586 found 22 hours ago
Delta
Mon, Aug 4 - Wed, Aug 20
SMF
Sacramento
SNN
Shannon
$591 Roundtrip, found 22 hours ago
$591
Roundtrip
found 22 hours ago
Select Delta flight, departing Mon, Aug 4 from Sacramento to Shannon, returning Wed, Aug 20, priced at $591 found 22 hours ago
United
Sat, Aug 2 - Tue, Aug 19
SMF
Sacramento
SNN
Shannon
$592 Roundtrip, found 22 hours ago
$592
Roundtrip
found 22 hours ago
Select United flight, departing Sat, Aug 2 from Sacramento to Shannon, returning Tue, Aug 19, priced at $592 found 22 hours ago
United
Tue, Aug 5 - Mon, Aug 25
SMF
Sacramento
SNN
Shannon
$636 Roundtrip, found 2 days ago
$636
Roundtrip
found 2 days ago
Select United flight, departing Tue, Aug 5 from Sacramento to Shannon, returning Mon, Aug 25, priced at $636 found 2 days ago
United
Thu, Aug 7 - Tue, Aug 19
SMF
Sacramento
SNN
Shannon
$636 Roundtrip, found 22 hours ago
$636
Roundtrip
found 22 hours ago
Select United flight, departing Thu, Aug 7 from Sacramento to Shannon, returning Tue, Aug 19, priced at $636 found 22 hours ago
Delta
Fri, Aug 1 - Wed, Aug 20
SMF
Sacramento
SNN
Shannon
$641 Roundtrip, found 22 hours ago
$641
Roundtrip
found 22 hours ago
Select Delta flight, departing Fri, Aug 1 from Sacramento to Shannon, returning Wed, Aug 20, priced at $641 found 22 hours ago
United
Sat, Aug 9 - Mon, Aug 25
SMF
Sacramento
SNN
Shannon
$642 Roundtrip, found 2 days ago
$642
Roundtrip
found 2 days ago
Select United flight, departing Sat, Aug 9 from Sacramento to Shannon, returning Mon, Aug 25, priced at $642 found 2 days ago
American Airlines
Tue, Aug 5 - Tue, Aug 19
SMF
Sacramento
SNN
Shannon
$788 Roundtrip, found 5 days ago
$788
Roundtrip
found 5 days ago
Select American Airlines flight, departing Tue, Aug 5 from Sacramento to Shannon, returning Tue, Aug 19, priced at $788 found 5 days ago
Lufthansa
Mon, Aug 4 - Tue, Aug 19
SMF
Sacramento
SNN
Shannon
$795 Roundtrip, found 5 days ago
$795
Roundtrip
found 5 days ago
Select Lufthansa flight, departing Mon, Aug 4 from Sacramento to Shannon, returning Tue, Aug 19, priced at $795 found 5 days ago
Air Canada
Tue, Oct 28 - Wed, Nov 19
SMF
Sacramento
SNN
Shannon
$805 Roundtrip, found 22 hours ago
$805
Roundtrip
found 22 hours ago
Select Air Canada flight, departing Tue, Oct 28 from Sacramento to Shannon, returning Wed, Nov 19, priced at $805 found 22 hours ago
Flights from Sacramento (SMF) to Shannon (SNN)
Origin airport
Sacramento Intl.
Destination airport
Shannon
Airlines serving
Air Canada, American Airlines, British Airways, Delta, JetBlue Airways, United
Roundtrip price
$586
Distance
4949 mi

Sacramento to Shannon Flights

The cheapest times to fly from Sacramento 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 Sacramento to Shannon are during the month of August. You can find some of the cheapest flights from Sacramento to Shannon with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Sacramento to Shannon

Sunday is one of the best days to book for cheap flights from Sacramento 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 Sacramento 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 Sacramento to Shannon in 2025. You can also book with separate airlines for your outbound and return journeys, from $451 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 Sacramento 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 Sacramento 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.

 

Frequently asked questions

How much does a flight from Sacramento Intl. Airport (SMF) to Shannon Airport (SNN) cost?
Discover the latest flight deals from SMF to SNN by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from SMF to SNN?
The cheapest flights from SMF to SNN are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
What is the cheapest airline that flies from SMF to SNN?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll take you from SMF to SNN. Sort your results by "Price (lowest to highest)" to snap up a great deal.
How many flights per day from Sacramento Intl. Airport (SMF) to Shannon Airport (SNN)?
There aren't any daily nonstop flights available from Sacramento Intl. Airport (SMF) to Shannon Airport (SNN). But you can opt for flights with layovers. Filter your search on Expedia to include one or two stops, and you'll be soaring above the clouds in no time.
What day of the week has the most flights from SMF to SNN?
You'll generally find Tuesday the quietest day for flights, while Fridays tend to be 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 Sacramento Intl. Airport (SMF) to Shannon Airport (SNN)?
To reach Shannon Airport (SNN) on schedule, book a flight that leaves Sacramento Intl. Airport (SMF) before 3 PM. The chance of cancellations is 22% higher, on average, for departures after this hour.**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 Sacramento Intl. Airport (SMF) to Shannon Airport (SNN) last-minute?
Last-minute bookings from SMF to SNN are typically more expensive. To secure the cheapest rates, start looking for flights as early as possible. That being said, if your travel plans are flexible, it's possible to find a cheap ticket right before you leave.
Is it cheaper to book a SMF to SNN flight and hotel package?
Compared with arranging flights and hotels separately, booking a SMF to SNN flight and hotel package with Expedia could lead to significant savings. Better yet, having everything in one convenient place will take the stress out of planning your trip. Just pick your flights and select from our wide range of hotels, then customize your trip with other add-ons like car rentals and activities.
Can I cancel or change the date of my flight from Sacramento Intl. Airport (SMF) to Shannon Airport (SNN)?
If you reserved your SMF to SNN flight within the last 24 hours, you may be able to cancel or modify it at no cost. Depending on the airline and the type of fare you purchased, additional charges may apply for changes beyond that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

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*Available to One Key members.