$426 Cheap Flights from Harrisburg (MDT) to Shannon (SNN)

View $426 flight on Sat, Jul 19, 2025Opens in a new window

Popular airlines from Harrisburg Intl. Airport (MDT) to Shannon Airport (SNN)

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Cheap Flights from Harrisburg to Shannon (MDT-SNN)

Prices were available within the past 7 days and start at $426 for one-way flights and $536 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Mon, Aug 4 - Fri, Aug 22
MDT
Harrisburg
SNN
Shannon
$536 Roundtrip, found 4 days ago
$536
Roundtrip
found 4 days ago
Select United flight, departing Mon, Aug 4 from Harrisburg to Shannon, returning Fri, Aug 22, priced at $536 found 4 days ago
Delta
Sun, Aug 10 - Tue, Aug 26
MDT
Harrisburg
SNN
Shannon
$541 Roundtrip, found 4 days ago
$541
Roundtrip
found 4 days ago
Select Delta flight, departing Sun, Aug 10 from Harrisburg to Shannon, returning Tue, Aug 26, priced at $541 found 4 days ago
United
Sat, Aug 2 - Fri, Aug 22
MDT
Harrisburg
SNN
Shannon
$541 Roundtrip, found 4 days ago
$541
Roundtrip
found 4 days ago
Select United flight, departing Sat, Aug 2 from Harrisburg to Shannon, returning Fri, Aug 22, priced at $541 found 4 days ago
United
Sat, Aug 2 - Tue, Aug 19
MDT
Harrisburg
SNN
Shannon
$547 Roundtrip, found 4 days ago
$547
Roundtrip
found 4 days ago
Select United flight, departing Sat, Aug 2 from Harrisburg to Shannon, returning Tue, Aug 19, priced at $547 found 4 days ago
United
Thu, Aug 7 - Fri, Aug 22
MDT
Harrisburg
SNN
Shannon
$586 Roundtrip, found 4 days ago
$586
Roundtrip
found 4 days ago
Select United flight, departing Thu, Aug 7 from Harrisburg to Shannon, returning Fri, Aug 22, priced at $586 found 4 days ago
United
Mon, Aug 11 - Sat, Aug 23
MDT
Harrisburg
SNN
Shannon
$591 Roundtrip, found 4 days ago
$591
Roundtrip
found 4 days ago
Select United flight, departing Mon, Aug 11 from Harrisburg to Shannon, returning Sat, Aug 23, priced at $591 found 4 days ago
United
Thu, Aug 7 - Tue, Aug 19
MDT
Harrisburg
SNN
Shannon
$591 Roundtrip, found 4 days ago
$591
Roundtrip
found 4 days ago
Select United flight, departing Thu, Aug 7 from Harrisburg to Shannon, returning Tue, Aug 19, priced at $591 found 4 days ago
United
Fri, Aug 1 - Fri, Aug 22
MDT
Harrisburg
SNN
Shannon
$592 Roundtrip, found 4 days ago
$592
Roundtrip
found 4 days ago
Select United flight, departing Fri, Aug 1 from Harrisburg to Shannon, returning Fri, Aug 22, priced at $592 found 4 days ago
American Airlines
Tue, Oct 28 - Wed, Nov 12
MDT
Harrisburg
SNN
Shannon
$741 Roundtrip, found 3 days ago
$741
Roundtrip
found 3 days ago
Select American Airlines flight, departing Tue, Oct 28 from Harrisburg to Shannon, returning Wed, Nov 12, priced at $741 found 3 days ago
British Airways
Mon, Sep 1 - Mon, Dec 22
MDT
Harrisburg
SNN
Shannon
$886 Roundtrip, found 4 days ago
$886
Roundtrip
found 4 days ago
Select British Airways flight, departing Mon, Sep 1 from Harrisburg to Shannon, returning Mon, Dec 22, priced at $886 found 4 days ago

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 $866
SNN
Shannon Airport
CheapestClosest
Average driving time to city center7 min
Flights from $866
Flights from Harrisburg (MDT) to Shannon (SNN)
Origin airport
Harrisburg Intl.
Destination airport
Shannon
Airlines serving
American Airlines, United
Roundtrip price
$536
Distance
3214 mi

Harrisburg to Shannon Flights

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

 

The best time to book a flight from Harrisburg to Shannon

Sunday is one of the best days to book for cheap flights from Harrisburg 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 Harrisburg 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 Harrisburg to Shannon in 2025. You can also book with separate airlines for your outbound and return journeys, from $426 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 Harrisburg 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 Harrisburg 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 Harrisburg Intl. Airport (MDT) to Shannon Airport (SNN) cost?
Discover the latest flight deals from MDT 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 MDT to SNN?
The cheapest flights from MDT 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 MDT to SNN?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll take you from MDT to SNN. Sort your results by "Price (lowest to highest)" to snap up a great deal.
How many flights per day from Harrisburg Intl. Airport (MDT) to Shannon Airport (SNN)?
There are no daily nonstop flights available from Harrisburg Intl. Airport (MDT) to Shannon Airport (SNN). But you can opt for flights with layovers. Filter your search on Expedia to include one or more stops, and you'll be soaring above the clouds in no time.
What day of the week has the most flights from MDT to SNN?
Friday is generally the busiest day for flights, while Tuesday is often the quietest.* Remember that flight schedules can vary based on a range of factors, such as the season and airline.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Harrisburg Intl. Airport (MDT) to Shannon Airport (SNN)?
To land at Shannon Airport (SNN) on schedule, pick a flight that leaves Harrisburg Intl. Airport (MDT) before 3 PM. The chance of cancellations is 22% higher, on average, for departures after this time.**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 Harrisburg Intl. Airport (MDT) to Shannon Airport (SNN) last-minute?
Booking your ticket from MDT to SNN shortly before your getaway is typically more expensive. However, if there's some wiggle room with your schedule, you could score a cheap last-minute fare.
Is it cheaper to book a MDT to SNN flight and hotel package?
You'll typically save money by securing a MDT to SNN flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it's easy to manage it all in one convenient place. After choosing your ideal accommodations and flights, consider adding extras including car rentals, activities and tours.
Can I cancel or change the date of my flight from Harrisburg Intl. Airport (MDT) to Shannon Airport (SNN)?
Typically, you're able to reschedule or cancel your MDT to SNN flight. However, additional fees may apply, especially if you booked more than 24 hours ago. Check your itinerary for the airline's rules and fees on flight changes, or if you'd like further information, visit our Customer Service portal.

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*Available to One Key members.