Cheap Flights from San Antonio (SAT) to Donegal (CFN)

Popular airlines from San Antonio International Airport (SAT) to Donegal (CFN)

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Flights from San Antonio (SAT) to Donegal (CFN)
Origin airport
San Antonio Intl.
Destination airport
Donegal
Distance
4577 mi

San Antonio to Donegal Flights

The cheapest times to fly from San Antonio to Donegal

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 San Antonio to Donegal are during the month of . You can find some of the cheapest flights from San Antonio to Donegal with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from San Antonio to Donegal

Sunday is one of the best days to book for cheap flights from San Antonio to Donegal: 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 San Antonio to Donegal

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 San Antonio to Donegal in 2026. You can also book with separate airlines for your outbound and return journeys, from 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 San Antonio to Donegal 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 San Antonio to Donegal 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 San Antonio Intl. Airport (SAT) to Donegal Airport (CFN) cost?
Grab a cheap one-way flight or cheap return flight from San Antonio Intl. Airport (SAT) to Donegal Airport (CFN) 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 San Antonio Intl. Airport (SAT) to Donegal Airport (CFN)?
The cheapest month to fly from SAT to CFN is , when demand is low. Off-peak season is usually when airlines offer lower prices between these airports.
What is the cheapest airline that flies from San Antonio Intl. Airport (SAT) to Donegal Airport (CFN)?
Expedia's filter tool lets you easily compare different airlines, travel time and fares all in one place. Customize the search to your preferences, then sort by "Price (lowest to highest)" to see which carrier offers the cheapest SAT to CFN flight.
How many flights per day from San Antonio Intl. Airport (SAT) to Donegal Airport (CFN)?
Nonstop flights from San Antonio Intl. Airport (SAT) to Donegal Airport (CFN) aren't available daily, so you'll need to take a flight with a layover. Explore your options with our filter tool. Enter your travel dates and choose either "1 Stop" or "2+ Stops."
What day of the week has the most flights from SAT to CFN?
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 peak travel times or public holidays.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from San Antonio Intl. Airport (SAT) to Donegal Airport (CFN)?
Select a flight from San Antonio Intl. Airport (SAT) to Donegal Airport (CFN) that leaves before 3 PM to reduce the likelihood of delays. Later departures 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 San Antonio Intl. Airport (SAT) to Donegal Airport (CFN) last-minute?
Last-minute bookings from SAT to CFN are generally more expensive. To secure the best rates, start searching for flights well in advance. That said, if you're flexible with your travel plans, you may score a cheap fare just before your departure.
Is it cheaper to book a SAT to CFN flight and hotel package?
You'll typically save money by securing a SAT to CFN flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it's simple to manage everything in one place. Once you've chosen your ideal accommodations and flights, consider other add-ons like car rentals, activities and tours.
Can I cancel or change the date of my flight from San Antonio Intl. Airport (SAT) to Donegal Airport (CFN)?
Usually, it's possible to cancel or reschedule your SAT to CFN flight. However, if the booking was made more than 24 hours ago, additional charges may apply. Check your airline's policies in your itinerary to see what changes are allowed and whether any costs are involved. You'll also find further details on our Customer Service portal.

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*Available to One Key members.