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Cheap flights from the United States to Donegal from €309

This is the cheapest one-way 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 28/9. 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
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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 - 14:00
JFK
-
CFN
16h 05m
1 stop
Aer Lingus Logo
14:30 - 19:20
CFN
-
JFK
9h 50m
1 stop
€767Aer Lingus
Wed, 5 Aug - Tue, 11 Aug
Multiple Airlines Logo
18:20 - 14:00
JFK
-
CFN
38h 40m
2 stops
Multiple Airlines Logo
07:55 - 19:20
CFN
-
JFK
16h 25m
1 stop
€771Multiple Airlines
Wed, 5 Aug - Tue, 11 Aug
Multiple Airlines Logo
21:05 - 14:00
JFK
-
CFN
11h 55m
1 stop
Multiple Airlines Logo
07:55 - 13:40
CFN
-
JFK
10h 45m
1 stop
€781Multiple Airlines
Mon, 27 Jul - Sat, 29 Aug
Multiple Airlines Logo
21:05 - 14:00
JFK
-
CFN
11h 55m
1 stop
Multiple Airlines Logo
07:55 - 13:40
CFN
-
JFK
10h 45m
1 stop
€790Multiple Airlines
Mon, 17 Aug - Wed, 26 Aug
Multiple Airlines Logo
23:55 - 20:00
JFK
-
CFN
15h 05m
1 stop
Multiple Airlines Logo
07:55 - 20:00
CFN
-
JFK
17h 05m
2 stops
€795Multiple Airlines
Mon, 27 Jul - Sat, 29 Aug
Aer Lingus Logo
06:29 - 14:00
JFK
-
CFN
26h 31m
2 stops
Aer Lingus Logo
07:55 - 13:40
CFN
-
JFK
10h 45m
1 stop
€799Aer Lingus
Mon, 17 Aug - Wed, 26 Aug
Multiple Airlines Logo
15:30 - 14:00
JFK
-
CFN
17h 30m
2 stops
Multiple Airlines Logo
07:55 - 20:00
CFN
-
JFK
17h 05m
2 stops
€820Multiple Airlines
Mon, 27 Jul - Sat, 29 Aug
British Airways Logo
17:00 - 14:00
ORD
-
CFN
15h 00m
2 stops
British Airways Logo
14:30 - 12:30
CFN
-
ORD
28h 00m
2 stops
€839British Airways
Sun, 23 Aug - Sun, 30 Aug
British Airways Logo
17:45 - 14:00
IAD
-
CFN
15h 15m
2 stops
British Airways Logo
14:30 - 15:55
CFN
-
IAD
30h 25m
2 stops
€1,244British Airways
Sun, 30 Aug - Wed, 2 Sep
British Airways Logo
17:45 - 14:00
IAD
-
CFN
15h 15m
2 stops
British Airways Logo
14:30 - 15:55
CFN
-
IAD
30h 25m
2 stops
€1,245British Airways
Sun, 30 Aug - Wed, 2 Sep

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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
15 Jul
JFK23:55New York John F Kennedy Intl
15h 05m
1 stop
CFN20:00Donegal
29 Jul
CFN07:55Donegal
19h 30m
1 stop
JFK22:25New York John F Kennedy Intl
€718
Aer Lingus
5 Aug
JFK16:55New York John F Kennedy Intl
16h 05m
1 stop
CFN14:00Donegal
11 Aug
CFN14:30Donegal
9h 50m
1 stop
JFK19:20New York John F Kennedy Intl
€767
Aer Lingus
17 Aug
JFK06:29New York John F Kennedy Intl
26h 31m
2 stops
CFN14:00Donegal
26 Aug
CFN07:55Donegal
10h 45m
1 stop
JFK13:40New York John F Kennedy Intl
€799

British Airways flights from United States to Donegal

Our best British Airways deals on United States to Donegal flight tickets
British Airways
23 Aug
ORD17:00Chicago O'Hare Intl
15h 00m
2 stops
CFN14:00Donegal
30 Aug
CFN14:30Donegal
28h 00m
2 stops
ORD12:30Chicago O'Hare Intl
€839
British Airways
3 Aug
JFK18:40New York John F Kennedy Intl
14h 20m
2 stops
CFN14:00Donegal
10 Aug
CFN14:30Donegal
27h 50m
2 stops
JFK13:20New York John F Kennedy Intl
€897
British Airways
31 Aug
JFK18:10New York John F Kennedy Intl
14h 50m
2 stops
CFN14:00Donegal
4 Sept
CFN14:30Donegal
27h 35m
2 stops
JFK13:05New York John F Kennedy Intl
€905

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 9 July 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

Wed 5/8

16:55-14:00

1 stop16h 05m

Donegal

Tue 11/8

14:30-19:20

1 stop9h 50m

€767

New YorkDonegal

JFK - CFN

JFKCFN

New York John F Kennedy Intl

Wed 5/8

18:20-14:00

2 stops38h 40m

Donegal

Tue 11/8

07:55-19:20

1 stop16h 25m

€771
Fastest return journey

New YorkDonegal

JFK - CFN

JFKCFN

New York John F Kennedy Intl

Mon 27/7

21:05-14:00

1 stop11h 55m

Donegal

Sat 29/8

07:55-13:40

1 stop10h 45m

€781

New YorkDonegal

JFK - CFN

JFKCFN

New York John F Kennedy Intl

Mon 17/8

21:05-14:00

1 stop11h 55m

Donegal

Wed 26/8

07:55-13:40

1 stop10h 45m

€790

New YorkDonegal

JFK - CFN

JFKCFN

New York John F Kennedy Intl

Mon 27/7

23:55-20:00

1 stop15h 05m

Donegal

Sat 29/8

07:55-20:00

2 stops17h 05m

€795

New YorkDonegal

JFK - CFN

JFKCFN

New York John F Kennedy Intl

Mon 17/8

06:29-14:00

2 stops26h 31m

Donegal

Wed 26/8

07:55-13:40

1 stop10h 45m

€799

New YorkDonegal

JFK - CFN

JFKCFN

New York John F Kennedy Intl

Mon 27/7

15:30-14:00

2 stops17h 30m

Donegal

Sat 29/8

07:55-20:00

2 stops17h 05m

€820

ChicagoDonegal

ORD - CFN

ORDCFN

Chicago O'Hare Intl

Sun 23/8

17:00-14:00

2 stops15h 00m

Donegal

Sun 30/8

14:30-12:30

2 stops28h 00m

€839

Washington, D.C.Donegal

IAD - CFN

IADCFN

Washington, D.C. Dulles Intl

Sun 30/8

17:45-14:00

2 stops15h 15m

Donegal

Wed 2/9

14:30-15:55

2 stops30h 25m

€1,244

Washington, D.C.Donegal

IAD - CFN

IADCFN

Washington, D.C. Dulles Intl

Sun 30/8

17:45-14:00

2 stops15h 15m

Donegal

Wed 2/9

14:30-15:55

2 stops30h 25m

€1,245

Flights are sorted by cheapest return flights first.

Showing 1-10 of 13 resultsSorted by cheapest first
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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 10h 40m on average, while flying from San Francisco to Knock is 36h 56m 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

14h 40m

Direct flights

None
The fastest flight from United States to Donegal takes 14h 40m
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.

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