$313 Cheap Flights from Buffalo (BUF) to Shannon (SNN)

View $313 flight on Thu, Sep 11, 2025Opens in a new window

Popular airlines from Buffalo Niagara Intl. Airport (BUF) to Shannon Airport (SNN)

Cheap Flights from Buffalo to Shannon (BUF-SNN)

Prices were available within the past 7 days and start at $313 for one-way flights and $586 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Sat, Apr 4 - Tue, Apr 14
BUF
Buffalo
SNN
Shannon
$586 Roundtrip, found 4 days ago
$586
Roundtrip
found 4 days ago
Select United flight, departing Sat, Apr 4 from Buffalo to Shannon, returning Tue, Apr 14, priced at $586 found 4 days ago
United
Fri, Apr 3 - Tue, Apr 14
BUF
Buffalo
SNN
Shannon
$590 Roundtrip, found 4 days ago
$590
Roundtrip
found 4 days ago
Select United flight, departing Fri, Apr 3 from Buffalo to Shannon, returning Tue, Apr 14, priced at $590 found 4 days ago
United
Tue, Oct 7 - Tue, Oct 21
BUF
Buffalo
SNN
Shannon
$592 Roundtrip, found 4 days ago
$592
Roundtrip
found 4 days ago
Select United flight, departing Tue, Oct 7 from Buffalo to Shannon, returning Tue, Oct 21, priced at $592 found 4 days ago
Virgin Atlantic
Sat, Oct 18 - Thu, Nov 6
BUF
Buffalo
SNN
Shannon
$598 Roundtrip, found 4 days ago
$598
Roundtrip
found 4 days ago
Select Virgin Atlantic flight, departing Sat, Oct 18 from Buffalo to Shannon, returning Thu, Nov 6, priced at $598 found 4 days ago
United
Mon, Oct 6 - Tue, Oct 21
BUF
Buffalo
SNN
Shannon
$602 Roundtrip, found 4 days ago
$602
Roundtrip
found 4 days ago
Select United flight, departing Mon, Oct 6 from Buffalo to Shannon, returning Tue, Oct 21, priced at $602 found 4 days ago
Virgin Atlantic
Thu, Mar 26 - Tue, Apr 7
BUF
Buffalo
SNN
Shannon
$603 Roundtrip, found 4 days ago
$603
Roundtrip
found 4 days ago
Select Virgin Atlantic flight, departing Thu, Mar 26 from Buffalo to Shannon, returning Tue, Apr 7, priced at $603 found 4 days ago
United
Mon, Oct 13 - Fri, Oct 24
BUF
Buffalo
SNN
Shannon
$620 Roundtrip, found 4 days ago
$620
Roundtrip
found 4 days ago
Select United flight, departing Mon, Oct 13 from Buffalo to Shannon, returning Fri, Oct 24, priced at $620 found 4 days ago
Delta
Sun, Sep 14 - Tue, Sep 23
BUF
Buffalo
SNN
Shannon
$710 Roundtrip, found 4 days ago
$710
Roundtrip
found 4 days ago
Select Delta flight, departing Sun, Sep 14 from Buffalo to Shannon, returning Tue, Sep 23, priced at $710 found 4 days ago
Lufthansa
Tue, Apr 7 - Tue, Apr 21
BUF
Buffalo
SNN
Shannon
$729 Roundtrip, found 2 days ago
$729
Roundtrip
found 2 days ago
Select Lufthansa flight, departing Tue, Apr 7 from Buffalo to Shannon, returning Tue, Apr 21, priced at $729 found 2 days ago
American Airlines
Tue, Nov 4 - Tue, Nov 18
BUF
Buffalo
SNN
Shannon
$738 Roundtrip, found 4 days ago
$738
Roundtrip
found 4 days ago
Select American Airlines flight, departing Tue, Nov 4 from Buffalo to Shannon, returning Tue, Nov 18, priced at $738 found 4 days ago

Find the cheapest month to fly from Buffalo (BUF) to Shannon (SNN)

September is typically the cheapest month to fly

From $600 - $1,525 per traveler.

Graph displaying average flight prices per month

Alternative airports near Shannon

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Shannon Airport SNN. Cheapest and Closest option available. Average driving time to city center is 7 minutes. Flights from $752
SNN
Shannon Airport
CheapestClosest
Average driving time to city center7 min
Flights from $752
Flights from Buffalo (BUF) to Shannon (SNN)
Origin airport
Buffalo Niagara Intl.
Destination airport
Shannon
Airlines serving
Aer Lingus, American Airlines, British Airways, JetBlue Airways, Lufthansa, United
Roundtrip price
$585
Distance
3176 mi

Buffalo to Shannon Flights

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

 

The best time to book a flight from Buffalo to Shannon

Sunday is one of the best days to book for cheap flights from Buffalo 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 Buffalo 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 Buffalo to Shannon in 2025. You can also book with separate airlines for your outbound and return journeys, from $313 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 Buffalo 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 Buffalo 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 Buffalo Niagara Intl. Airport (BUF) to Shannon Airport (SNN) cost?
Grab a cheap one-way flight from $313 or cheap return flight from $586 from Buffalo Niagara Intl. Airport (BUF) to Shannon Airport (SNN) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from Buffalo Niagara Intl. Airport (BUF) to Shannon Airport (SNN)?
Planning your getaway for April can help you save, as it's the cheapest month for flights between BUF and SNN. You'll typically find the lowest fares during the off-season.
What is the cheapest airline that flies from Buffalo Niagara Intl. Airport (BUF) to Shannon Airport (SNN)?
Expedia's filter tool lets you easily compare airlines, flight times and fares all in one place. Choose your preferences, then sort by "Price (lowest to highest)" to find the carrier with the cheapest BUF to SNN flight.
How many flights per day from Buffalo Niagara Intl. Airport (BUF) to Shannon Airport (SNN)?
Nonstop flights from Buffalo Niagara Intl. Airport (BUF) to Shannon Airport (SNN) aren't available daily, so you'll have to take a flight with a layover. Explore your options with our filter tool. Enter your travel dates and click on either "1 Stop" or "2+ Stops."
What day of the week has the most flights from BUF to SNN?
Generally you'll have the most choice when it comes to flights on a Friday. Tuesdays are often the quietest.* However, this can change based on the airline, season and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Buffalo Niagara Intl. Airport (BUF) to Shannon Airport (SNN)?
Book a flight from Buffalo Niagara Intl. Airport (BUF) to Shannon Airport (SNN) that takes off before 3 PM to reduce the likelihood of delays. Departures later than this are on average 22% more likely to be canceled.**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 Buffalo Niagara Intl. Airport (BUF) to Shannon Airport (SNN) last-minute?
Booking your ticket from BUF to SNN shortly before your trip is usually more expensive. However, if there's some wiggle room with your departure times and dates, you could grab a cheap last-minute fare.
Is it cheaper to book a BUF to SNN flight and hotel package?
Securing a BUF to SNN flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your trip all in one place. Pick from our wide range of stays and then add activities, car rentals and flights to your booking. Bundle it all together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Buffalo Niagara Intl. Airport (BUF) to Shannon Airport (SNN)?
If you reserved your BUF to SNN flight within the last 24 hours, you may be able to modify or cancel it without fees. Depending on the airline and the ticket type you purchased, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, go to our Customer Service portal for further details.

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*Available to One Key members.