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Cheap flights from the United States to Donegal from €545

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 15/7. 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
23:55 - 20:00
JFK
-
CFN
15h 05m
1 stop
Aer Lingus Logo
08:00 - 19:20
CFN
-
JFK
16h 20m
1 stop
€545Aer Lingus
Wed, 15 Jul - Wed, 29 Jul
Aer Lingus Logo
23:55 - 14:00
JFK
-
CFN
9h 05m
1 stop
Aer Lingus Logo
08:00 - 13:40
CFN
-
JFK
10h 40m
1 stop
€690Aer Lingus
Wed, 15 Jul - Wed, 29 Jul
Aer Lingus Logo
23:55 - 14:00
JFK
-
CFN
9h 05m
1 stop
Aer Lingus Logo
14:30 - 19:20
CFN
-
JFK
9h 50m
1 stop
€787Aer Lingus
Sat, 15 Aug - Thu, 27 Aug
Aer Lingus Logo
16:55 - 14:00
JFK
-
CFN
16h 05m
1 stop
Aer Lingus Logo
14:30 - 22:25
CFN
-
JFK
12h 55m
1 stop
€791Aer Lingus
Sun, 12 Jul - Thu, 16 Jul
Aer Lingus Logo
16:55 - 14:00
JFK
-
CFN
16h 05m
1 stop
Aer Lingus Logo
14:30 - 21:51
CFN
-
JFK
12h 21m
2 stops
€795Aer Lingus
Sat, 15 Aug - Thu, 27 Aug
Aer Lingus Logo
19:10 - 14:00
JFK
-
CFN
13h 50m
2 stops
Aer Lingus Logo
14:30 - 06:14
CFN
-
JFK
20h 44m
2 stops
€821Aer Lingus
Sat, 15 Aug - Thu, 27 Aug
Multiple Airlines Logo
21:05 - 14:00
JFK
-
CFN
11h 55m
1 stop
Multiple Airlines Logo
14:30 - 21:51
CFN
-
JFK
12h 21m
2 stops
€833Multiple Airlines
Thu, 13 Aug - Thu, 20 Aug
British Airways Logo
17:10 - 20:00
ORD
-
CFN
20h 50m
2 stops
British Airways Logo
08:00 - 19:15
CFN
-
ORD
17h 15m
2 stops
€899British Airways
Mon, 2 Nov - Fri, 6 Nov
British Airways Logo
21:45 - 20:00
IAD
-
CFN
17h 15m
2 stops
British Airways Logo
08:00 - 15:35
CFN
-
IAD
36h 35m
2 stops
€1,168British Airways
Sun, 15 Nov - Thu, 19 Nov
British Airways Logo
19:15 - 14:00
IAD
-
CFN
13h 45m
2 stops
British Airways Logo
14:30 - 15:55
CFN
-
IAD
30h 25m
2 stops
€1,171British Airways
Sun, 6 Sep - Thu, 10 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
CFN08:00Donegal
16h 20m
1 stop
JFK19:20New York John F Kennedy Intl
€545
Aer Lingus
15 Jul
JFK23:55New York John F Kennedy Intl
9h 05m
1 stop
CFN14:00Donegal
29 Jul
CFN08:00Donegal
10h 40m
1 stop
JFK13:40New York John F Kennedy Intl
€690
Aer Lingus
15 Aug
JFK23:55New York John F Kennedy Intl
9h 05m
1 stop
CFN14:00Donegal
27 Aug
CFN14:30Donegal
9h 50m
1 stop
JFK19:20New York John F Kennedy Intl
€787

British Airways flights from United States to Donegal

Our best British Airways deals on United States to Donegal flight tickets
British Airways
2 Nov
ORD17:10Chicago O'Hare Intl
20h 50m
2 stops
CFN20:00Donegal
6 Nov
CFN08:00Donegal
17h 15m
2 stops
ORD19:15Chicago O'Hare Intl
€898
British Airways
16 Nov
JFK19:10New York John F Kennedy Intl
13h 50m
2 stops
CFN14:00Donegal
20 Nov
CFN08:00Donegal
17h 10m
2 stops
JFK20:10New York John F Kennedy Intl
€918
British Airways
18 Nov
JFK19:10New York John F Kennedy Intl
13h 50m
2 stops
CFN14:00Donegal
21 Nov
CFN08:00Donegal
19h 05m
2 stops
JFK22:05New York John F Kennedy Intl
€919

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 19 June 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 15/7

23:55-20:00

1 stop15h 05m

Donegal

Wed 29/7

08:00-19:20

1 stop16h 20m

€545

New YorkDonegal

JFK - CFN

JFKCFN

New York John F Kennedy Intl

Wed 15/7

23:55-14:00

1 stop9h 05m

Donegal

Wed 29/7

08:00-13:40

1 stop10h 40m

€690
Fastest return journey

New YorkDonegal

JFK - CFN

JFKCFN

New York John F Kennedy Intl

Sat 15/8

23:55-14:00

1 stop9h 05m

Donegal

Thu 27/8

14:30-19:20

1 stop9h 50m

€787

New YorkDonegal

JFK - CFN

JFKCFN

New York John F Kennedy Intl

Sun 12/7

16:55-14:00

1 stop16h 05m

Donegal

Thu 16/7

14:30-22:25

1 stop12h 55m

€791

New YorkDonegal

JFK - CFN

JFKCFN

New York John F Kennedy Intl

Sat 15/8

16:55-14:00

1 stop16h 05m

Donegal

Thu 27/8

14:30-21:51

2 stops12h 21m

€795

New YorkDonegal

JFK - CFN

JFKCFN

New York John F Kennedy Intl

Sat 15/8

19:10-14:00

2 stops13h 50m

Donegal

Thu 27/8

14:30-06:14

2 stops20h 44m

€821

New YorkDonegal

JFK - CFN

JFKCFN

New York John F Kennedy Intl

Thu 13/8

21:05-14:00

1 stop11h 55m

Donegal

Thu 20/8

14:30-21:51

2 stops12h 21m

€833

ChicagoDonegal

ORD - CFN

ORDCFN

Chicago O'Hare Intl

Mon 2/11

17:10-20:00

2 stops20h 50m

Donegal

Fri 6/11

08:00-19:15

2 stops17h 15m

€898

Washington, D.C.Donegal

IAD - CFN

IADCFN

Washington, D.C. Dulles Intl

Sun 15/11

21:45-20:00

2 stops17h 15m

Donegal

Thu 19/11

08:00-15:35

2 stops36h 35m

€1,168

Washington, D.C.Donegal

IAD - CFN

IADCFN

Washington, D.C. Dulles Intl

Sun 6/9

19:15-14:00

2 stops13h 45m

Donegal

Thu 10/9

14:30-15:55

2 stops30h 25m

€1,171

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 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

9h 05m

Direct flights

None
The fastest flight from United States to Donegal takes 9h 05m
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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