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Cheap flights from the United States to Donegal from €719

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 3/5. 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
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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
16:55 - 07:35
JFK
-
CFN
9h 40m
1 stop
Aer Lingus Logo
20:30 - 22:25
CFN
-
JFK
30h 55m
1 stop
€719Aer Lingus
Sun, 3 May - Sun, 10 May
Aer Lingus Logo
15:45 - 20:00
ORD
-
CFN
22h 15m
1 stop
Aer Lingus Logo
08:00 - 14:00
CFN
-
ORD
12h 00m
1 stop
€764Aer Lingus
Mon, 27 Jul - Wed, 5 Aug
Multiple Airlines Logo
16:55 - 07:35
JFK
-
CFN
9h 40m
1 stop
Multiple Airlines Logo
20:30 - 13:11
CFN
-
JFK
21h 41m
2 stops
€771Multiple Airlines
Sun, 3 May - Sun, 10 May
Multiple Airlines Logo
19:20 - 07:35
JFK
-
CFN
31h 15m
2 stops
Multiple Airlines Logo
20:30 - 13:11
CFN
-
JFK
21h 41m
2 stops
€811Multiple Airlines
Sun, 3 May - Sun, 10 May
Multiple Airlines Logo
16:55 - 07:35
JFK
-
CFN
9h 40m
1 stop
Multiple Airlines Logo
20:30 - 22:25
CFN
-
JFK
30h 55m
1 stop
€861Multiple Airlines
Wed, 15 Jul - Wed, 29 Jul
Aer Lingus Logo
23:55 - 20:00
JFK
-
CFN
15h 05m
1 stop
Aer Lingus Logo
08:00 - 22:25
CFN
-
JFK
19h 25m
1 stop
€862Aer Lingus
Wed, 15 Jul - Wed, 29 Jul
Multiple Airlines Logo
22:40 - 20:00
JFK
-
CFN
16h 20m
2 stops
Multiple Airlines Logo
20:30 - 22:25
CFN
-
JFK
30h 55m
1 stop
€870Multiple Airlines
Wed, 15 Jul - Wed, 29 Jul
Multiple Airlines Logo
15:45 - 07:35
ORD
-
CFN
9h 50m
1 stop
Multiple Airlines Logo
20:30 - 16:00
CFN
-
ORD
49h 30m
2 stops
€891Multiple Airlines
Mon, 27 Jul - Wed, 5 Aug
Multiple Airlines Logo
22:40 - 20:00
JFK
-
CFN
16h 20m
2 stops
Multiple Airlines Logo
08:00 - 18:20
CFN
-
JFK
15h 20m
2 stops
€894Multiple Airlines
Wed, 15 Jul - Wed, 29 Jul
Multiple Airlines Logo
17:15 - 07:35
IAD
-
CFN
9h 20m
1 stop
Multiple Airlines Logo
20:30 - 15:21
CFN
-
IAD
47h 51m
2 stops
€948Multiple Airlines
Sun, 31 May - Mon, 8 Jun

Aer Lingus flights from United States to Donegal

Our best Aer Lingus deals on United States to Donegal flight tickets
Aer Lingus
3 May
JFK16:55New York John F Kennedy Intl
9h 40m
1 stop
CFN07:35Donegal
10 May
CFN20:30Donegal
30h 55m
1 stop
JFK22:25New York John F Kennedy Intl
€719
Aer Lingus
27 Jul
ORD15:45Chicago O'Hare Intl
22h 15m
1 stop
CFN20:00Donegal
5 Aug
CFN08:00Donegal
12h 00m
1 stop
ORD14:00Chicago O'Hare Intl
€764
Aer Lingus
15 Jul
JFK23:55New York John F Kennedy Intl
15h 05m
1 stop
CFN20:00Donegal
29 Jul
CFN08:00Donegal
19h 25m
1 stop
JFK22:25New York John F Kennedy Intl
€862

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 24 March 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 - CFN

JFKCFN

New York John F Kennedy Intl

Sun 3/5

16:55-07:35

1 stop9h 40m

Donegal

Sun 10/5

20:30-22:25

1 stop30h 55m

€719

ChicagoDonegal

ORD - CFN

ORDCFN

Chicago O'Hare Intl

Mon 27/7

15:45-20:00

1 stop22h 15m

Donegal

Wed 5/8

08:00-14:00

1 stop12h 00m

€764
Fastest return journey

New YorkDonegal

JFK - CFN

JFKCFN

New York John F Kennedy Intl

Sun 3/5

16:55-07:35

1 stop9h 40m

Donegal

Sun 10/5

20:30-13:11

2 stops21h 41m

€771

New YorkDonegal

JFK - CFN

JFKCFN

New York John F Kennedy Intl

Sun 3/5

19:20-07:35

2 stops31h 15m

Donegal

Sun 10/5

20:30-13:11

2 stops21h 41m

€811

New YorkDonegal

JFK - CFN

JFKCFN

New York John F Kennedy Intl

Wed 15/7

16:55-07:35

1 stop9h 40m

Donegal

Wed 29/7

20:30-22:25

1 stop30h 55m

€861

New YorkDonegal

JFK - CFN

JFKCFN

New York John F Kennedy Intl

Wed 15/7

23:55-20:00

1 stop15h 05m

Donegal

Wed 29/7

08:00-22:25

1 stop19h 25m

€862

New YorkDonegal

JFK - CFN

JFKCFN

New York John F Kennedy Intl

Wed 15/7

22:40-20:00

2 stops16h 20m

Donegal

Wed 29/7

20:30-22:25

1 stop30h 55m

€870

ChicagoDonegal

ORD - CFN

ORDCFN

Chicago O'Hare Intl

Mon 27/7

15:45-07:35

1 stop9h 50m

Donegal

Wed 5/8

20:30-16:00

2 stops49h 30m

€891

New YorkDonegal

JFK - CFN

JFKCFN

New York John F Kennedy Intl

Wed 15/7

22:40-20:00

2 stops16h 20m

Donegal

Wed 29/7

08:00-18:20

2 stops15h 20m

€894

Washington, D.C.Donegal

IAD - CFN

IADCFN

Washington, D.C. Dulles Intl

Sun 31/5

17:15-07:35

1 stop9h 20m

Donegal

Mon 8/6

20:30-15:21

2 stops47h 51m

€948

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 9h 40m on average, while flying from San Francisco to Knock is 30h 46m 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

9h 20m

Direct flights

None
The fastest flight from United States to Donegal takes 9h 20m
There are no direct flights from United States to Donegal. There are no popular flight routes from United States to Donegal.
Search flight deals

  • 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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