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Cheap flights from the United States to Donegal from €587

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 29/8. 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
21:05 - 14:00
JFK
-
CFN
11h 55m
1 stop
Aer Lingus Logo
14:30 - 22:25
CFN
-
JFK
12h 55m
1 stop
€587Aer Lingus
Sat, 29 Aug - Sat, 5 Sep
Aer Lingus Logo
23:55 - 20:00
JFK
-
CFN
15h 05m
1 stop
Aer Lingus Logo
14:30 - 22:25
CFN
-
JFK
12h 55m
1 stop
€695Aer Lingus
Mon, 3 Aug - Mon, 24 Aug
Multiple Airlines Logo
18:20 - 14:00
JFK
-
CFN
14h 40m
2 stops
Multiple Airlines Logo
14:30 - 22:25
CFN
-
JFK
12h 55m
1 stop
€748Multiple Airlines
Sat, 29 Aug - Sat, 5 Sep
Multiple Airlines Logo
23:55 - 14:00
JFK
-
CFN
9h 05m
1 stop
Multiple Airlines Logo
14:30 - 22:30
CFN
-
JFK
37h 00m
2 stops
€782Multiple Airlines
Mon, 31 Aug - Mon, 7 Sep
Multiple Airlines Logo
20:30 - 20:00
JFK
-
CFN
18h 30m
3 stops
Multiple Airlines Logo
14:30 - 15:20
CFN
-
JFK
29h 50m
2 stops
€784Multiple Airlines
Mon, 31 Aug - Mon, 7 Sep
Multiple Airlines Logo
20:55 - 14:00
IAD
-
CFN
12h 05m
1 stop
Multiple Airlines Logo
14:30 - 18:50
CFN
-
IAD
33h 20m
2 stops
€799Multiple Airlines
Wed, 14 Oct - Mon, 19 Oct
Aer Lingus Logo
21:05 - 14:00
JFK
-
CFN
11h 55m
1 stop
Aer Lingus Logo
14:30 - 11:10
CFN
-
JFK
25h 40m
2 stops
€809Aer Lingus
Mon, 27 Jul - Sat, 29 Aug
British Airways Logo
22:25 - 14:00
ORD
-
CFN
33h 35m
2 stops
British Airways Logo
14:30 - 12:25
CFN
-
ORD
27h 55m
2 stops
€857British Airways
Thu, 10 Sep - Mon, 14 Sep
British Airways Logo
19:15 - 14:00
IAD
-
CFN
13h 45m
2 stops
British Airways Logo
14:30 - 19:40
CFN
-
IAD
34h 10m
2 stops
€883British Airways
Fri, 18 Sep - Tue, 22 Sep
British Airways Logo
21:30 - 14:00
BWI
-
CFN
35h 30m
2 stops
British Airways Logo
14:30 - 19:40
CFN
-
BWI
34h 10m
2 stops
€905British Airways
Wed, 14 Oct - Mon, 19 Oct

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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
29 Aug
JFK21:05New York John F Kennedy Intl
11h 55m
1 stop
CFN14:00Donegal
5 Sept
CFN14:30Donegal
12h 55m
1 stop
JFK22:25New York John F Kennedy Intl
€587
Aer Lingus
3 Aug
JFK23:55New York John F Kennedy Intl
15h 05m
1 stop
CFN20:00Donegal
24 Aug
CFN14:30Donegal
12h 55m
1 stop
JFK22:25New York John F Kennedy Intl
€695
Aer Lingus
27 Jul
JFK21:05New York John F Kennedy Intl
11h 55m
1 stop
CFN14:00Donegal
29 Aug
CFN14:30Donegal
25h 40m
2 stops
JFK11:10New York John F Kennedy Intl
€809

British Airways flights from United States to Donegal

Our best British Airways deals on United States to Donegal flight tickets
British Airways
10 Sept
ORD22:25Chicago O'Hare Intl
33h 35m
2 stops
CFN14:00Donegal
14 Sept
CFN14:30Donegal
27h 55m
2 stops
ORD12:25Chicago O'Hare Intl
€857
British Airways
18 Sept
IAD19:15Washington, D.C. Dulles Intl
13h 45m
2 stops
CFN14:00Donegal
22 Sept
CFN14:30Donegal
34h 10m
2 stops
IAD19:40Washington, D.C. Dulles Intl
€883
British Airways
27 Jul
JFK19:15New York John F Kennedy Intl
13h 45m
2 stops
CFN14:00Donegal
29 Aug
CFN14:30Donegal
25h 40m
2 stops
JFK11:10New York John F Kennedy Intl
€888

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 17 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
Fastest return journey

New YorkDonegal

JFK - CFN

JFKCFN

New York John F Kennedy Intl

Sat 29/8

21:05-14:00

1 stop11h 55m

Donegal

Sat 5/9

14:30-22:25

1 stop12h 55m

€587

New YorkDonegal

JFK - CFN

JFKCFN

New York John F Kennedy Intl

Mon 3/8

23:55-20:00

1 stop15h 05m

Donegal

Mon 24/8

14:30-22:25

1 stop12h 55m

€695

New YorkDonegal

JFK - CFN

JFKCFN

New York John F Kennedy Intl

Sat 29/8

18:20-14:00

2 stops14h 40m

Donegal

Sat 5/9

14:30-22:25

1 stop12h 55m

€748

New YorkDonegal

JFK - CFN

JFKCFN

New York John F Kennedy Intl

Mon 31/8

23:55-14:00

1 stop9h 05m

Donegal

Mon 7/9

14:30-22:30

2 stops37h 00m

€782

New YorkDonegal

JFK - CFN

JFKCFN

New York John F Kennedy Intl

Mon 31/8

20:30-20:00

3 stops18h 30m

Donegal

Mon 7/9

14:30-15:20

2 stops29h 50m

€784

Washington, D.C.Donegal

IAD - CFN

IADCFN

Washington, D.C. Dulles Intl

Wed 14/10

20:55-14:00

1 stop12h 05m

Donegal

Mon 19/10

14:30-18:50

2 stops33h 20m

€799

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

14:30-11:10

2 stops25h 40m

€809

ChicagoDonegal

ORD - CFN

ORDCFN

Chicago O'Hare Intl

Thu 10/9

22:25-14:00

2 stops33h 35m

Donegal

Mon 14/9

14:30-12:25

2 stops27h 55m

€857

Washington, D.C.Donegal

IAD - CFN

IADCFN

Washington, D.C. Dulles Intl

Fri 18/9

19:15-14:00

2 stops13h 45m

Donegal

Tue 22/9

14:30-19:40

2 stops34h 10m

€883

BaltimoreDonegal

BWI - CFN

BWICFN

Baltimore/Washington

Wed 14/10

21:30-14:00

2 stops35h 30m

Donegal

Mon 19/10

14:30-19:40

2 stops34h 10m

€905

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 12h 25m on average, while flying from San Francisco to Knock is 24h 45m 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

11h 55m

Direct flights

None
The fastest flight from United States to Donegal takes 11h 55m
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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