Which city has the cheapest flights to Donegal?

Based on fares booked in the past 5 days, the cheapest flights to Donegal are from New York, starting at $1,082 round-trip, and from Washington, D.C., starting at $1,346 round-trip.

How do I know if a flight to Donegal is a good deal?

A good deal on a flight to Donegal is around $878 round-trip. This fare is in the lowest 25% of round-trip prices searched on KAYAK, averaged across the cities most often searched as origins by KAYAK users.

Which airlines should I consider for flights to Donegal?

Aer Lingus is the most popular airline with KAYAK users flying to Donegal, and has the best on-time record at the destination's main airport.

What is the cheapest flight to Donegal?

San Francisco to Donegal is the cheapest route at $1,040 round-trip, found in the past 5 days on KAYAK. New York John F Kennedy Intl Airport to Donegal is the most popular connection with round-trip deals from $1,082.

How much is a flight to Donegal?

On average, a round-trip flight from the United States to Donegal costs $1,163, based on KAYAK data over the past 12 months. Round-trip fares from New York average $813, while Jacksonville runs a bit higher at $1,152.

What is the cheapest day to fly to Donegal?

Sunday is the cheapest day to fly to Donegal at $813 round-trip on average over the past 12 months on KAYAK. Thursday is the most expensive at $2,134.

What is the cheapest time of day to fly to Donegal?

Night flights to Donegal are the cheapest at $813 round-trip on average. Afternoon flights are the most expensive at $1,497.

What is a good deal for flights to Donegal?

Flights under $878 are considered a good deal. 25% of KAYAK users found round-trip flights to Donegal at or below these prices, with the lowest fares from: •New York $706 •Philadelphia $869.

What are the most popular airlines flying to Donegal?

Aer Lingus is the only airline flying to Donegal on KAYAK.

$1,040 CHEAP FLIGHTS to Donegal in 2026/27

Save 25% or more on flights. Compare deals from all over the web.

Never overpay with our price tracking tools.

Filter searches by price, airline and more to find your best flights.

Cheapest round-trip

$1,040

Typical prices: $878-$1,487

Aer Lingus

Mon 12/10Sun 12/16

SFO - CFN • 2 stops

Top airlines

Aer Lingus

Best reviews • 7.3 score

Airline reviews

Top routes

NYC - CFN

Cheapest • 41% average savings

WAS - CFN

Most popular

Insights

When to travel

January

Cheapest • 34% price drop

June

Most popular

Good to know

Start a new search

KAYAK searches 100s of sites at once to find you the best travel deals.

We hope you love your trip to Donegal!

Flight Deals

Cheap Flights to Donegal

Discover the best prices for you by selecting your travel dates on KAYAK.

Round-trip

One-way

All Flight Deals

Recent round-trip flight deals to Donegal

Thu, Dec 10 - Wed, Dec 16

9:13 am - 8:00 pmSFO San Francisco-CFN Donegal

26h 47m2 stops Los Angeles Dublin

7:55 am - 3:35 pmCFN Donegal-SFO San Francisco

15h 40m1 stop Dublin

$1,040Aer Lingus

Thu, Dec 10 - Wed, Dec 16

9:13 am - 8:00 pmSFO San Francisco-CFN Donegal

26h 47m2 stops Los Angeles Dublin

7:55 am - 10:11 pmCFN Donegal-SFO San Francisco

22h 16m2 stops Dublin Chicago O'Hare Intl

$1,049Aer Lingus

Sun, Apr 25 - Wed, Apr 28

6:40 pm - 8:00 pmSFO San Francisco-CFN Donegal

17h 20m2 stops London Heathrow Dublin

7:55 am - 4:50 pmCFN Donegal-SFO San Francisco

40h 55m2 stops Dublin London Heathrow

$1,071British Airways

Sun, Apr 25 - Wed, Apr 28

6:40 pm - 8:00 pmSFO San Francisco-CFN Donegal

17h 20m2 stops London Heathrow Dublin

7:55 am - 4:50 pmCFN Donegal-SFO San Francisco

40h 55m2 stops Dublin London Heathrow

$1,075British Airways

Sun, Jan 10 - Thu, Jan 14

7:05 pm - 2:00 pmJFK New York John F Kennedy Intl-CFN Donegal

13h 55m2 stops London Heathrow Dublin

7:55 am - 9:10 pmCFN Donegal-JFK New York John F Kennedy Intl

18h 15m2 stops Dublin London Heathrow

$1,082British Airways

Sun, Jan 10 - Thu, Jan 14

7:05 pm - 2:00 pmJFK New York John F Kennedy Intl-CFN Donegal

13h 55m2 stops London Heathrow Dublin

7:55 am - 9:10 pmCFN Donegal-JFK New York John F Kennedy Intl

18h 15m2 stops Dublin London Heathrow

$1,083British Airways

Sun, Jan 10 - Thu, Jan 14

7:05 pm - 2:00 pmJFK New York John F Kennedy Intl-CFN Donegal

13h 55m2 stops London Heathrow Dublin

7:55 am - 9:10 pmCFN Donegal-JFK New York John F Kennedy Intl

18h 15m2 stops Dublin London Heathrow

$1,086British Airways

Thu, Dec 10 - Wed, Dec 16

6:30 am - 2:00 pmSFO San Francisco-CFN Donegal

23h 30m3 stops Denver Intl Reykjavik Keflavik Intl Dublin

7:55 am - 4:30 pmCFN Donegal-SFO San Francisco

40h 35m3 stops Dublin Milan Malpensa Istanbul

$1,234Multiple Airlines

Sun, Dec 6 - Thu, Dec 10

6:05 pm - 8:00 pmIAD Washington, D.C. Dulles Intl-CFN Donegal

20h 55m2 stops London Heathrow Dublin

7:55 am - 3:40 pmCFN Donegal-IAD Washington, D.C. Dulles Intl

36h 45m2 stops Dublin London Heathrow

$1,346British Airways

Sun, Dec 6 - Thu, Dec 10

6:05 pm - 8:00 pmIAD Washington, D.C. Dulles Intl-CFN Donegal

20h 55m2 stops London Heathrow Dublin

7:55 am - 3:40 pmCFN Donegal-IAD Washington, D.C. Dulles Intl

36h 45m2 stops Dublin London Heathrow

$1,347British Airways

All round-trip flight deals to Donegal

Thu, Dec 10 - Wed, Dec 16

9:13 am - 8:00 pmSFO San Francisco-CFN Donegal

26h 47m2 stops Los Angeles Dublin

7:55 am - 3:35 pmCFN Donegal-SFO San Francisco

15h 40m1 stop Dublin

$1,040Aer Lingus

Thu, Dec 10 - Wed, Dec 16

9:13 am - 8:00 pmSFO San Francisco-CFN Donegal

26h 47m2 stops Los Angeles Dublin

7:55 am - 10:11 pmCFN Donegal-SFO San Francisco

22h 16m2 stops Dublin Chicago O'Hare Intl

$1,049Aer Lingus

Sun, Apr 25 - Wed, Apr 28

6:40 pm - 8:00 pmSFO San Francisco-CFN Donegal

17h 20m2 stops London Heathrow Dublin

7:55 am - 4:50 pmCFN Donegal-SFO San Francisco

40h 55m2 stops Dublin London Heathrow

$1,071British Airways

Sun, Apr 25 - Wed, Apr 28

6:40 pm - 8:00 pmSFO San Francisco-CFN Donegal

17h 20m2 stops London Heathrow Dublin

7:55 am - 4:50 pmCFN Donegal-SFO San Francisco

40h 55m2 stops Dublin London Heathrow

$1,075British Airways

Sun, Jan 10 - Thu, Jan 14

7:05 pm - 2:00 pmJFK New York John F Kennedy Intl-CFN Donegal

13h 55m2 stops London Heathrow Dublin

7:55 am - 9:10 pmCFN Donegal-JFK New York John F Kennedy Intl

18h 15m2 stops Dublin London Heathrow

$1,082British Airways

Sun, Jan 10 - Thu, Jan 14

7:05 pm - 2:00 pmJFK New York John F Kennedy Intl-CFN Donegal

13h 55m2 stops London Heathrow Dublin

7:55 am - 9:10 pmCFN Donegal-JFK New York John F Kennedy Intl

18h 15m2 stops Dublin London Heathrow

$1,083British Airways

Sun, Jan 10 - Thu, Jan 14

7:05 pm - 2:00 pmJFK New York John F Kennedy Intl-CFN Donegal

13h 55m2 stops London Heathrow Dublin

7:55 am - 9:10 pmCFN Donegal-JFK New York John F Kennedy Intl

18h 15m2 stops Dublin London Heathrow

$1,086British Airways

Thu, Dec 10 - Wed, Dec 16

6:30 am - 2:00 pmSFO San Francisco-CFN Donegal

23h 30m3 stops Denver Intl Reykjavik Keflavik Intl Dublin

7:55 am - 4:30 pmCFN Donegal-SFO San Francisco

40h 35m3 stops Dublin Milan Malpensa Istanbul

$1,234Multiple Airlines

Sun, Dec 6 - Thu, Dec 10

6:05 pm - 8:00 pmIAD Washington, D.C. Dulles Intl-CFN Donegal

20h 55m2 stops London Heathrow Dublin

7:55 am - 3:40 pmCFN Donegal-IAD Washington, D.C. Dulles Intl

36h 45m2 stops Dublin London Heathrow

$1,346British Airways

Sun, Dec 6 - Thu, Dec 10

6:05 pm - 8:00 pmIAD Washington, D.C. Dulles Intl-CFN Donegal

20h 55m2 stops London Heathrow Dublin

7:55 am - 3:40 pmCFN Donegal-IAD Washington, D.C. Dulles Intl

36h 45m2 stops Dublin London Heathrow

$1,347British Airways

Booking Insights

Price, demand and travel trends for flights to Donegal

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

Prices

Airlines

What is the cheapest flight to Donegal?: San Francisco to Donegal is the cheapest route at $1,040 round-trip, found in the past 5 days on KAYAK. New York John F Kennedy Intl Airport to Donegal is the most popular connection with round-trip deals from $1,082.
How much is a flight to Donegal? Average and cheapest price for all round-trip flights to Donegal from each origin found by users searching on KAYAK in the last 12 months.: On average, a round-trip flight from the United States to Donegal costs $1,163, based on KAYAK data over the past 12 months. Round-trip fares from New York average $813, while Jacksonville runs a bit higher at $1,152.
What is the cheapest day to fly to Donegal?: Sunday is the cheapest day to fly to Donegal at $813 round-trip on average over the past 12 months on KAYAK. Thursday is the most expensive at $2,134.
What is the cheapest time of day to fly to Donegal? Average price for all round-trip flights depending on time of departure, seen by users on KAYAK in the last 12 months.: Night flights to Donegal are the cheapest at $813 round-trip on average. Afternoon flights are the most expensive at $1,497.
What is a good deal for flights to Donegal?: Flights under $878 are considered a good deal. 25% of KAYAK users found round-trip flights to Donegal at or below these prices, with the lowest fares from:
•New York $706
•Philadelphia $869.

Find deals

Low season	February
High season	June
Cheapest flight	$1,040

Beat the crowds with an average 62% drop in travelers.

The most popular month to fly with an average 97% increase in travelers.

Round-trip flight from San Francisco to Donegal

When to book flights to Donegal

Are your dates flexible? Find out the best times to travel to Donegal based on our flight data from the last year. Discover the cheapest month and even day to fly.

Estimated round-trip price

KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. The information is for flights to Donegal based on your location. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

How do I know if a flight to Donegal is a good deal?
A good deal on a flight to Donegal is around $878 round-trip. This fare is in the lowest 25% of round-trip prices searched on KAYAK, averaged across the cities most often searched as origins by KAYAK users.
Which city has the cheapest flights to Donegal?
Based on fares booked in the past 5 days, the cheapest flights to Donegal are from New York, starting at $1,082 round-trip, and from Washington, D.C., starting at $1,346 round-trip.
Which airlines should I consider for flights to Donegal?
Aer Lingus is the most popular airline with KAYAK users flying to Donegal, and has the best on-time record at the destination's main airport.

For flights to Donegal, a good round-trip fare is around $878. If you find a fare below that, you're getting a strong deal.
If your travel dates are flexible, consider flying to Donegal in January. Round-trip fares historically average $763, making January the cheapest month to travel based on KAYAK data from the last 12 months.
Before you book:

• Check the route's typical price range so you can spot a deal.
• Confirm baggage fees and seat-selection costs on budget carriers.
• Verify whether you need any travel documents beyond ID.
• Pick a departure airport, since your nearest may not be the cheapest origin.
Shift your departure to evening to save up to $684 per round-trip. Evening flights to Donegal average $813 compared to $1,497 for noon flights.

Bundoran

Killybegs

Downings

Milford

More options for your flight to Donegal

Add a hotel or car rental

Airports

Cabin class

Origins

Other destinations

Return flight

Complete your trip to Donegal with a hotel stay or car rental

Car rentals in Donegal

CFN

$1,040 Find Cheap Flights to Donegal - Compare and Save

Everything you should know

Cheap Flights to Donegal

Recent round-trip flight deals to Donegal

Recent one-way flight deals to Donegal

All round-trip flight deals to Donegal

Price, demand and travel trends for flights to Donegal

What is the cheapest flight to Donegal?

How much is a flight to Donegal?

What is the cheapest day to fly to Donegal?

What is the cheapest time of day to fly to Donegal?

What is a good deal for flights to Donegal?

What are the most popular airlines flying to Donegal?

Key details for flights to Donegal

Low season

High season

Cheapest flight

When to book flights to Donegal

Your questions about flights to Donegal, answered

Your guide to booking Donegal flights

Traveling to a place near Donegal?

More options for your flight to Donegal

Complete your trip to Donegal with a hotel stay or car rental

Information on the airport you'll fly into in Donegal

Cabin class types available on flights to Donegal

Flights from local origins to Donegal

Flights to other popular destinations

Find deals for your return flight