Title: Cheap flights from Buffalo to Donegal (BUF to CFN) - Expedia.com ![Murder hole beach 2 ireland](https://images.trvl-media.com/place/11245/d813363a-2a01-40e1-b06e-8106f926d970.jpg?impolicy=fcrop&w=1200&h=500&q=medium) ![](https://images.trvl-media.com/place/11245/d813363a-2a01-40e1-b06e-8106f926d970.jpg?impolicy=fcrop&w=1200&h=500&q=medium) # Cheap Flights from Buffalo (BUF) to Donegal (CFN) - [Roundtrip](?flightType=roundtrip) - [One-way](?flightType=oneway) - [Multi-city](?flightType=multicity) ### Travelers Adults ChildrenAges 2 to 17 InfantsYounger than 2 EconomyPremium economyBusiness classFirst class Flight 1 Leaving from Going to Departing Flight 2 Leaving from Going to Departing ## Popular airlines from Buffalo Niagara Intl. Airport (BUF) to Donegal (CFN) - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_AA.svg) American Airlines [](https://www.expedia.com/Flights-Search?leg1=from:BUF,to:CFN,departure:2/24/2026TANYT&leg2=from:CFN,to:BUF,departure:3/3/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"AA"}}]) - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_UA.svg) United [](https://www.expedia.com/Flights-Search?leg1=from:BUF,to:CFN,departure:2/24/2026TANYT&leg2=from:CFN,to:BUF,departure:3/3/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"UA"}}]) - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_WN.svg) Southwest Airlines [](https://www.expedia.com/Flights-Search?leg1=from:BUF,to:CFN,departure:2/24/2026TANYT&leg2=from:CFN,to:BUF,departure:3/3/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"WN"}}]) - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_DL.svg) Delta [](https://www.expedia.com/Flights-Search?leg1=from:BUF,to:CFN,departure:2/24/2026TANYT&leg2=from:CFN,to:BUF,departure:3/3/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"DL"}}]) - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_F9.svg) Frontier Airlines [](https://www.expedia.com/Flights-Search?leg1=from:BUF,to:CFN,departure:2/24/2026TANYT&leg2=from:CFN,to:BUF,departure:3/3/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"F9"}}]) - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_B6.svg) JetBlue Airways [](https://www.expedia.com/Flights-Search?leg1=from:BUF,to:CFN,departure:2/24/2026TANYT&leg2=from:CFN,to:BUF,departure:3/3/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"B6"}}]) - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_AS.svg) Alaska Airlines [](https://www.expedia.com/Flights-Search?leg1=from:BUF,to:CFN,departure:2/24/2026TANYT&leg2=from:CFN,to:BUF,departure:3/3/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"AS"}}]) - ![](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__notification.svg) ### Be in the know Get alerts if flight prices drop or rise\* - ![](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__deals.svg) ### Book smarter Save up to 30% on select hotels after you book a flight\* - ![](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__trophy.svg) ### Earn twice Earn your airline miles on top of our OneKeyCash [Learn about One Key](https://www.expedia.com/welcome-one-key) __Flights from Buffalo (BUF) to Donegal (CFN)__ | Origin airport | Buffalo Niagara Intl. | | ------------------- | --------------------- | | Destination airport | Donegal | | Distance | 3153 mi | ## Buffalo to Donegal Flights The cheapest times to fly from Buffalo 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 Buffalo to Donegal are during the month of . You can find some of the cheapest flights from Buffalo to Donegal with Expedia's search tool and vast selection of airlines. The best time to book a flight from Buffalo to Donegal Sunday is one of the best days to book for cheap flights from Buffalo 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 Buffalo 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 Buffalo 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 Buffalo 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](https://www.expedia.com/package-deals). Bundling together your Buffalo 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 Buffalo Niagara Intl. Airport (BUF) to Donegal Airport (CFN) cost? ### What is the cheapest month to fly from Buffalo Niagara Intl. Airport (BUF) to Donegal Airport (CFN)? ### What is the cheapest airline that flies from Buffalo Niagara Intl. Airport (BUF) to Donegal Airport (CFN)? ### How many flights per day from Buffalo Niagara Intl. Airport (BUF) to Donegal Airport (CFN)? ### What day of the week has the most flights from BUF to CFN? ### What is the best time to fly from Buffalo Niagara Intl. Airport (BUF) to Donegal Airport (CFN)? ### Is it cheaper to buy a plane ticket from Buffalo Niagara Intl. Airport (BUF) to Donegal Airport (CFN) last-minute? ### Is it cheaper to book a BUF to CFN flight and hotel package? ### Can I cancel or change the date of my flight from Buffalo Niagara Intl. 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