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Cheap flights from the United States to Donegal from €657

This is the cheapest return flight price found by a momondo user in the last 72 hours by searching for a flight from the United States to Donegal departing on 20/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from the United States to Donegal

Recent return flight deals from the United States to Donegal

Enter your travel dates to find the best prices.
Aer Lingus Logo
23:55 - 20:00JFK  New York John F Kennedy Intl-CFN Donegal
15h 05m1 stop Dublin
Aer Lingus Logo
14:30 - 22:25CFN  Donegal-JFK New York John F Kennedy Intl
12h 55m1 stop Dublin
€657Aer Lingus
Sun, 20 Sep - Sun, 27 Sep
Multiple Airlines Logo
21:10 - 14:00JFK  New York John F Kennedy Intl-CFN Donegal
11h 50m1 stop Dublin
Multiple Airlines Logo
08:00 - 22:00CFN  Donegal-JFK New York John F Kennedy Intl
19h 00m2 stops Dublin Barcelona-El Prat
€713Multiple Airlines
Sat, 7 Nov - Sat, 14 Nov
Multiple Airlines Logo
18:20 - 14:00JFK  New York John F Kennedy Intl-CFN Donegal
14h 40m2 stops London Gatwick Dublin
Multiple Airlines Logo
07:55 - 22:25CFN  Donegal-JFK New York John F Kennedy Intl
19h 30m1 stop Dublin
€744Multiple Airlines
Sun, 20 Sep - Sun, 27 Sep
Multiple Airlines Logo
18:20 - 14:00JFK  New York John F Kennedy Intl-CFN Donegal
14h 40m2 stops London Gatwick Dublin
Multiple Airlines Logo
14:30 - 20:05CFN  Donegal-JFK New York John F Kennedy Intl
34h 35m3 stops Dublin Barcelona-El Prat Lisbon Humberto Delgado
€758Multiple Airlines
Sun, 20 Sep - Sun, 27 Sep
Multiple Airlines Logo
20:30 - 20:00JFK  New York John F Kennedy Intl-CFN Donegal
18h 30m3 stops Reykjavik Keflavik Intl London Heathrow Dublin
Multiple Airlines Logo
14:30 - 20:05CFN  Donegal-JFK New York John F Kennedy Intl
34h 35m3 stops Dublin Barcelona-El Prat Lisbon Humberto Delgado
€768Multiple Airlines
Sun, 20 Sep - Sun, 27 Sep
Multiple Airlines Logo
23:55 - 20:00JFK  New York John F Kennedy Intl-CFN Donegal
15h 05m1 stop Dublin
Multiple Airlines Logo
14:30 - 20:05CFN  Donegal-JFK New York John F Kennedy Intl
34h 35m3 stops Dublin Barcelona-El Prat Lisbon Humberto Delgado
€780Multiple Airlines
Sun, 20 Sep - Sun, 27 Sep
Aer Lingus Logo
17:00 - 14:00JFK  New York John F Kennedy Intl-CFN Donegal
16h 00m1 stop Dublin
Aer Lingus Logo
14:30 - 19:25CFN  Donegal-JFK New York John F Kennedy Intl
9h 55m1 stop Dublin
€790Aer Lingus
Tue, 3 Nov - Tue, 10 Nov
Aer Lingus Logo
17:00 - 14:00JFK  New York John F Kennedy Intl-CFN Donegal
16h 00m1 stop Dublin
Aer Lingus Logo
08:00 - 17:20CFN  Donegal-JFK New York John F Kennedy Intl
14h 20m2 stops Dublin Boston Logan Intl
€798Aer Lingus
Tue, 3 Nov - Tue, 10 Nov
Aer Lingus Logo
17:00 - 14:00JFK  New York John F Kennedy Intl-CFN Donegal
16h 00m1 stop Dublin
Aer Lingus Logo
14:30 - 19:25CFN  Donegal-JFK New York John F Kennedy Intl
9h 55m1 stop Dublin
€821Aer Lingus
Wed, 4 Nov - Tue, 10 Nov
Aer Lingus Logo
22:00 - 14:00JFK  New York John F Kennedy Intl-CFN Donegal
11h 00m1 stop Dublin
Aer Lingus Logo
14:30 - 21:54CFN  Donegal-JFK New York John F Kennedy Intl
12h 24m2 stops Dublin Boston Logan Intl
€824Aer Lingus
Wed, 4 Nov - Tue, 10 Nov

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Aer Lingus flights from United States to Donegal

Our best Aer Lingus deals on United States to Donegal flight tickets
Aer Lingus
20 Sept
JFK23:55New York John F Kennedy Intl
15h 05m
1 stop
CFN20:00Donegal
27 Sept
CFN14:30Donegal
12h 55m
1 stop
JFK22:25New York John F Kennedy Intl
€657
Aer Lingus
3 Nov
JFK17:00New York John F Kennedy Intl
16h 00m
1 stop
CFN14:00Donegal
10 Nov
CFN14:30Donegal
9h 55m
1 stop
JFK19:25New York John F Kennedy Intl
€790
Aer Lingus
3 Nov
JFK17:00New York John F Kennedy Intl
16h 00m
1 stop
CFN14:00Donegal
10 Nov
CFN08:00Donegal
14h 20m
2 stops
JFK17:20New York John F Kennedy Intl
€798

British Airways flights from United States to Donegal

Our best British Airways deals on United States to Donegal flight tickets
British Airways
17 Nov
JFK18:10New York John F Kennedy Intl
14h 50m
2 stops
CFN14:00Donegal
21 Nov
CFN08:00Donegal
15h 45m
2 stops
JFK18:45New York John F Kennedy Intl
€879
British Airways
9 Dec
BWI18:55Baltimore/Washington
20h 05m
2 stops
CFN20:00Donegal
13 Dec
CFN14:30Donegal
55h 35m
2 stops
BWI17:05Baltimore/Washington
€926
British Airways
17 Nov
JFK18:10New York John F Kennedy Intl
14h 50m
2 stops
CFN14:00Donegal
21 Nov
CFN08:00Donegal
15h 45m
2 stops
JFK18:45New York John F Kennedy Intl
€929

momondo Fare Finder

 
Customise your flight search to find flights from United States to Donegal that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 13,528 searches. Data last updated 7 August 2026.
Use the filters below to find and compare flights from the United States to Donegal that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

New YorkDonegal

JFK New York John F Kennedy Intl - CFN Donegal

JFKCFN

New York John F Kennedy Intl

Sun 20/9

23:55-20:00

1 stop15h 05m

Donegal

Sun 27/9

14:30-22:25

1 stop12h 55m

€657

New YorkDonegal

JFK New York John F Kennedy Intl - CFN Donegal

JFKCFN

New York John F Kennedy Intl

Sat 7/11

21:10-14:00

1 stop11h 50m

Donegal

Sat 14/11

08:00-22:00

2 stops19h 00m

€713

New YorkDonegal

JFK New York John F Kennedy Intl - CFN Donegal

JFKCFN

New York John F Kennedy Intl

Sun 20/9

18:20-14:00

2 stops14h 40m

Donegal

Sun 27/9

07:55-22:25

1 stop19h 30m

€744

New YorkDonegal

JFK New York John F Kennedy Intl - CFN Donegal

JFKCFN

New York John F Kennedy Intl

Sun 20/9

18:20-14:00

2 stops14h 40m

Donegal

Sun 27/9

14:30-20:05

3 stops34h 35m

€758

New YorkDonegal

JFK New York John F Kennedy Intl - CFN Donegal

JFKCFN

New York John F Kennedy Intl

Sun 20/9

20:30-20:00

3 stops18h 30m

Donegal

Sun 27/9

14:30-20:05

3 stops34h 35m

€768

New YorkDonegal

JFK New York John F Kennedy Intl - CFN Donegal

JFKCFN

New York John F Kennedy Intl

Sun 20/9

23:55-20:00

1 stop15h 05m

Donegal

Sun 27/9

14:30-20:05

3 stops34h 35m

€780

New YorkDonegal

JFK New York John F Kennedy Intl - CFN Donegal

JFKCFN

New York John F Kennedy Intl

Tue 3/11

17:00-14:00

1 stop16h 00m

Donegal

Tue 10/11

14:30-19:25

1 stop9h 55m

€790

New YorkDonegal

JFK New York John F Kennedy Intl - CFN Donegal

JFKCFN

New York John F Kennedy Intl

Tue 3/11

17:00-14:00

1 stop16h 00m

Donegal

Tue 10/11

08:00-17:20

2 stops14h 20m

€798

New YorkDonegal

JFK New York John F Kennedy Intl - CFN Donegal

JFKCFN

New York John F Kennedy Intl

Wed 4/11

17:00-14:00

1 stop16h 00m

Donegal

Tue 10/11

14:30-19:25

1 stop9h 55m

€821
Fastest return journey

New YorkDonegal

JFK New York John F Kennedy Intl - CFN Donegal

JFKCFN

New York John F Kennedy Intl

Wed 4/11

22:00-14:00

1 stop11h 00m

Donegal

Tue 10/11

14:30-21:54

2 stops12h 24m

€824

Flights are sorted by cheapest return flights first.

Sorted by cheapest first

See travel insights to Donegal from

How to get the cheapest flight ticket from United States to Donegal

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

How long does it take to fly to Donegal?

The average flight duration from United States to Donegal depends on which airport you fly into and out of. Flying from New York to Knock is 11h 20m on average, while flying from San Francisco to Knock is 20h 25m on average. Knock is the most popular airport in Donegal.

Cheap United States to Donegal flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from United States to Donegal

Fastest flight time

12h 35m

Direct flights

None
The fastest flight from United States to Donegal takes 12h 35m
There are no direct flights from United States to Donegal. There are no popular flight routes from United States to Donegal.
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Frequently asked questions about flying from the United States to Donegal

  • When did momondo last update prices for flights from United States to Donegal Airport?

    Prices for flights from United States to Donegal Airport refresh daily.

  • How old do you have to be to fly from United States to Donegal Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from United States to Donegal Airport.

  • What documentation or ID do you need to fly to Donegal Airport?

    The travel and health documents required for your trip to Donegal Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s licence, and a passport valid for six-months after you plan to arrive at Donegal Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Travelling to a place near Donegal?

Book flights to Donegal if you plan to visit one of these locations
Letterkenny
Bundoran
Killybegs

Why use momondo?

Why should I use momondo to find a flight deal from United States to Donegal?

Finding the right flight to Donegal from United States is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Donegal quick and easy, saving you time and money.

Can I find flights from United States to Donegal with flexible booking policies on momondo?

Yes. All flights to Donegal from United States on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from United States to Donegal?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Donegal from United States.

I’m not ready to book a flight from United States to Donegal right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Donegal from United States. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

An easier way to manage your Donegal trip

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