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Cheap flights from the United States to Donegal from €427

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 31/1. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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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.
Multiple Airlines Logo
17:30 - 12:35
JFK
-
CFN
14h 05m2 stops
Multiple Airlines Logo
14:30 - 13:05
CFN
-
JFK
27h 35m2 stops
€427Multiple Airlines
Sat, 31 Jan - Sat, 7 Feb
Multiple Airlines Logo
21:00 - 14:00
JFK
-
CFN
12h 00m1 stop
Multiple Airlines Logo
14:30 - 15:55
CFN
-
JFK
30h 25m2 stops
€588Multiple Airlines
Mon, 16 Feb - Mon, 23 Feb
Multiple Airlines Logo
19:10 - 12:35
JFK
-
CFN
12h 25m2 stops
Multiple Airlines Logo
14:30 - 13:55
CFN
-
JFK
28h 25m1 stop
€603Multiple Airlines
Sat, 31 Jan - Sat, 7 Feb
Aer Lingus Logo
21:00 - 12:35
JFK
-
CFN
10h 35m1 stop
Aer Lingus Logo
14:30 - 13:55
CFN
-
JFK
28h 25m1 stop
€618Aer Lingus
Sat, 31 Jan - Sat, 7 Feb
Multiple Airlines Logo
19:25 - 20:00
JFK
-
CFN
19h 35m3 stops
Multiple Airlines Logo
14:30 - 20:05
CFN
-
JFK
34h 35m3 stops
€619Multiple Airlines
Sat, 31 Jan - Sat, 7 Feb
Multiple Airlines Logo
17:00 - 14:00
JFK
-
CFN
16h 00m1 stop
Multiple Airlines Logo
07:55 - 17:00
CFN
-
JFK
14h 05m2 stops
€631Multiple Airlines
Thu, 29 Jan - Wed, 4 Feb
British Airways Logo
18:15 - 14:00
JFK
-
CFN
14h 45m2 stops
British Airways Logo
07:55 - 19:35
CFN
-
JFK
16h 40m2 stops
€634British Airways
Mon, 16 Feb - Mon, 23 Feb
Aer Lingus Logo
14:18 - 14:00
JFK
-
CFN
18h 42m2 stops
Aer Lingus Logo
14:30 - 08:30
CFN
-
JFK
23h 00m2 stops
€641Aer Lingus
Thu, 29 Jan - Wed, 4 Feb
British Airways Logo
17:25 - 20:00
DEN
-
CFN
19h 35m2 stops
British Airways Logo
13:00 - 15:30
CFN
-
DEN
33h 30m2 stops
€697British Airways
Sun, 15 Feb - Sun, 22 Feb
British Airways Logo
17:25 - 20:00
DEN
-
CFN
19h 35m2 stops
British Airways Logo
13:00 - 15:30
CFN
-
DEN
57h 30m2 stops
€765British Airways
Wed, 18 Feb - Sun, 22 Feb

British Airways flights from United States to Donegal

Our best British Airways deals on United States to Donegal flight tickets
British Airways
16 Feb
JFK18:15New York John F Kennedy Intl
14h 45m
2 stops
CFN14:00Donegal
23 Feb
CFN07:55Donegal
16h 40m
2 stops
JFK19:35New York John F Kennedy Intl
€634
Find similar
British Airways
15 Feb
DEN17:25Denver Intl
19h 35m
2 stops
CFN20:00Donegal
22 Feb
CFN13:00Donegal
33h 30m
2 stops
DEN15:30Denver Intl
€697
Find similar
British Airways
18 Feb
DEN17:25Denver Intl
19h 35m
2 stops
CFN20:00Donegal
22 Feb
CFN13:00Donegal
57h 30m
2 stops
DEN15:30Denver Intl
€765
Find similar

Aer Lingus flights from United States to Donegal

Our best Aer Lingus deals on United States to Donegal flight tickets
Aer Lingus
31 Jan
JFK21:00New York John F Kennedy Intl
10h 35m
1 stop
CFN12:35Donegal
7 Feb
CFN14:30Donegal
28h 25m
1 stop
JFK13:55New York John F Kennedy Intl
€618
Find similar
Aer Lingus
29 Jan
JFK14:18New York John F Kennedy Intl
18h 42m
2 stops
CFN14:00Donegal
4 Feb
CFN14:30Donegal
23h 00m
2 stops
JFK08:30New York John F Kennedy Intl
€641
Find similar

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 2 January 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

New YorkDonegal

JFK - CFN

JFKCFN

New York John F Kennedy Intl

Sat 31/1

17:30-12:35

2 stops14h 05m

Donegal

Sat 7/2

14:30-13:05

2 stops27h 35m

€427

New YorkDonegal

JFK - CFN

JFKCFN

New York John F Kennedy Intl

Mon 16/2

21:00-14:00

1 stop12h 00m

Donegal

Mon 23/2

14:30-15:55

2 stops30h 25m

€588

New YorkDonegal

JFK - CFN

JFKCFN

New York John F Kennedy Intl

Sat 31/1

19:10-12:35

2 stops12h 25m

Donegal

Sat 7/2

14:30-13:55

1 stop28h 25m

€603

New YorkDonegal

JFK - CFN

JFKCFN

New York John F Kennedy Intl

Sat 31/1

21:00-12:35

1 stop10h 35m

Donegal

Sat 7/2

14:30-13:55

1 stop28h 25m

€618

New YorkDonegal

JFK - CFN

JFKCFN

New York John F Kennedy Intl

Sat 31/1

19:25-20:00

3 stops19h 35m

Donegal

Sat 7/2

14:30-20:05

3 stops34h 35m

€619

New YorkDonegal

JFK - CFN

JFKCFN

New York John F Kennedy Intl

Thu 29/1

17:00-14:00

1 stop16h 00m

Donegal

Wed 4/2

07:55-17:00

2 stops14h 05m

€631

New YorkDonegal

JFK - CFN

JFKCFN

New York John F Kennedy Intl

Mon 16/2

18:15-14:00

2 stops14h 45m

Donegal

Mon 23/2

07:55-19:35

2 stops16h 40m

€634

New YorkDonegal

JFK - CFN

JFKCFN

New York John F Kennedy Intl

Thu 29/1

14:18-14:00

2 stops18h 42m

Donegal

Wed 4/2

14:30-08:30

2 stops23h 00m

€641

DenverDonegal

DEN - CFN

DENCFN

Denver Intl

Sun 15/2

17:25-20:00

2 stops19h 35m

Donegal

Sun 22/2

13:00-15:30

2 stops33h 30m

€697

DenverDonegal

DEN - CFN

DENCFN

Denver Intl

Wed 18/2

17:25-20:00

2 stops19h 35m

Donegal

Sun 22/2

13:00-15:30

2 stops57h 30m

€765

Flights are sorted by cheapest return flights first.

Showing 1-10 of 12 resultsSorted by cheapest first
1
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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 9h 35m 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

13h 30m

Direct flights

None
The fastest flight from United States to Donegal takes 13h 30m
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.

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