$654 Cheap Flights from Phoenix (PHX) to Donegal (CFN)

View $654 flight on Thu, Oct 30, 2025Opens in a new window

Popular airlines from Phoenix Sky Harbor Intl. Airport (PHX) to Donegal (CFN)

Cheap Flights from Phoenix to Donegal (PHX-CFN)

Prices were available within the past 7 days and start at $654 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 Sky Harbor Intl. Airport (PHX) to Donegal Airport (CFN) cost?
Secure a cheap one-way flight from $654 or cheap return flight from Sky Harbor Intl. Airport (PHX) to Donegal Airport (CFN) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from Sky Harbor Intl. Airport (PHX) to Donegal Airport (CFN)?
Flying in is a good way to save, as it's the cheapest month for flights between PHX and CFN. You'll usually find the lowest prices during the off-season.
What is the cheapest airline that flies from Sky Harbor Intl. Airport (PHX) to Donegal Airport (CFN)?
To find the cheapest airline that'll fly you from PHX to CFN, use Expedia's filter tool. Tailor your search based on your travel style, such as preferred carriers and ideal departure window. You can then sort your results by "Price (lowest to highest)" to see the most affordable options first.
How many flights per day from Sky Harbor Intl. Airport (PHX) to Donegal Airport (CFN)?
There are no daily direct flights from Sky Harbor Intl. Airport (PHX) to Donegal Airport (CFN). But you can opt for flights with layovers. Filter your search on Expedia to include one or two stops, and you'll be cruising above the clouds in no time.
What day of the week has the most flights from PHX to CFN?
You'll typically find Tuesday the quietest day for flights, while Fridays tend to be the busiest.* However this can vary 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 Sky Harbor Intl. Airport (PHX) to Donegal Airport (CFN)?
To touch down at Donegal Airport (CFN) on time, pick a flight that leaves from Sky Harbor Intl. Airport (PHX) 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 Sky Harbor Intl. Airport (PHX) to Donegal Airport (CFN) last-minute?
Holding off until just before your trip to book a flight from PHX to CFN often results in higher prices. While you may come across some last-minute discounts, they aren't always guaranteed. Be flexible with your itinerary for the best chance of landing a bargain.
Is it cheaper to book a PHX to CFN flight and hotel package?
You'll generally save money by securing a PHX to CFN flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it's simple to manage it all in one convenient place. Once you've selected your ideal flights and accommodations, consider adding extras including activities, tours and car rentals.
Can I cancel or change the date of my flight from Sky Harbor Intl. Airport (PHX) to Donegal Airport (CFN)?
Typically, you can modify or cancel your PHX to CFN flight. However, there may be additional fees, especially if you booked over 24 hours ago. Check your itinerary for the airline's fees and policies on flight changes, or if you want further information, visit our Customer Service portal.

Travel information

Travel information

Origin airport
Sky Harbor Intl.
Destination airport
Donegal
Distance
4850 mi

Book with confidence

Book with confidence

Phoenix to Donegal Flights

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

 

The best time to book a flight from Phoenix to Donegal

Sunday is one of the best days to book for cheap flights from Phoenix 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 Phoenix 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 Phoenix to Donegal in 2025. You can also book with separate airlines for your outbound and return journeys, from $654 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 Phoenix 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 Phoenix 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.

 

Phoenix to Donegal Flights

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Explore a world of travel with Expedia

*Available to One Key members.