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Cheap flights from the United States to Donegal from €654

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 24/2. 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.
British Airways Logo
20:40 - 20:00
JFK
-
CFN
18h 20m
2 stops
British Airways Logo
14:30 - 17:15
CFN
-
JFK
31h 45m
2 stops
€654British Airways
Tue, 24 Feb - Fri, 27 Feb
Multiple Airlines Logo
09:35 - 20:00
JFK
-
CFN
29h 25m
2 stops
Multiple Airlines Logo
08:00 - 13:05
CFN
-
JFK
34h 05m
2 stops
€800Multiple Airlines
Thu, 14 May - Mon, 18 May
Multiple Airlines Logo
22:10 - 20:00
JFK
-
CFN
16h 50m
1 stop
Multiple Airlines Logo
08:00 - 21:10
CFN
-
JFK
18h 10m
2 stops
€823Multiple Airlines
Sat, 28 Mar - Sat, 4 Apr
British Airways Logo
18:25 - 14:00
DEN
-
CFN
37h 35m
2 stops
British Airways Logo
14:30 - 16:30
CFN
-
DEN
32h 00m
2 stops
€830British Airways
Tue, 10 Mar - Wed, 25 Mar
British Airways Logo
18:25 - 14:00
DEN
-
CFN
37h 35m
2 stops
British Airways Logo
14:30 - 16:30
CFN
-
DEN
56h 00m
2 stops
€837British Airways
Tue, 10 Mar - Mon, 23 Mar
Multiple Airlines Logo
23:10 - 20:00
JFK
-
CFN
15h 50m
2 stops
Multiple Airlines Logo
08:00 - 21:10
CFN
-
JFK
18h 10m
2 stops
€844Multiple Airlines
Sat, 28 Mar - Sat, 4 Apr
British Airways Logo
18:25 - 14:00
DEN
-
CFN
37h 35m
2 stops
British Airways Logo
14:30 - 16:30
CFN
-
DEN
32h 00m
2 stops
€903British Airways
Sun, 15 Mar - Wed, 25 Mar
Aer Lingus Logo
16:50 - 14:00
ORD
-
CFN
16h 10m
1 stop
Aer Lingus Logo
08:00 - 19:15
CFN
-
ORD
17h 15m
1 stop
€1,005Aer Lingus
Fri, 27 Mar - Fri, 3 Apr
Aer Lingus Logo
16:50 - 14:00
ORD
-
CFN
16h 10m
1 stop
Aer Lingus Logo
08:00 - 18:15
CFN
-
ORD
16h 15m
2 stops
€1,136Aer Lingus
Fri, 27 Mar - Fri, 3 Apr
Aer Lingus Logo
06:45 - 14:00
ORD
-
CFN
26h 15m
2 stops
Aer Lingus Logo
08:00 - 10:32
CFN
-
ORD
32h 32m
2 stops
€1,195Aer Lingus
Fri, 27 Mar - Fri, 3 Apr

British Airways flights from United States to Donegal

Our best British Airways deals on United States to Donegal flight tickets
British Airways
24 Feb
JFK20:40New York John F Kennedy Intl
18h 20m
2 stops
CFN20:00Donegal
27 Feb
CFN14:30Donegal
31h 45m
2 stops
JFK17:15New York John F Kennedy Intl
€654
British Airways
10 Mar
DEN18:25Denver Intl
37h 35m
2 stops
CFN14:00Donegal
25 Mar
CFN14:30Donegal
32h 00m
2 stops
DEN16:30Denver Intl
€830
British Airways
18 Feb
DEN17:25Denver Intl
43h 35m
2 stops
CFN20:00Donegal
22 Feb
CFN13:00Donegal
33h 30m
2 stops
DEN15:30Denver Intl
€836

Aer Lingus flights from United States to Donegal

Our best Aer Lingus deals on United States to Donegal flight tickets
Aer Lingus
27 Mar
ORD16:50Chicago O'Hare Intl
16h 10m
1 stop
CFN14:00Donegal
3 Apr
CFN08:00Donegal
17h 15m
1 stop
ORD19:15Chicago O'Hare Intl
€1,005
Aer Lingus
27 Mar
ORD16:50Chicago O'Hare Intl
16h 10m
1 stop
CFN14:00Donegal
3 Apr
CFN08:00Donegal
16h 15m
2 stops
ORD18:15Chicago O'Hare Intl
€1,136
Aer Lingus
27 Mar
ORD06:45Chicago O'Hare Intl
26h 15m
2 stops
CFN14:00Donegal
3 Apr
CFN08:00Donegal
32h 32m
2 stops
ORD10:32Chicago O'Hare Intl
€1,195

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 11 February 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

Tue 24/2

20:40-20:00

2 stops18h 20m

Donegal

Fri 27/2

14:30-17:15

2 stops31h 45m

€654

New YorkDonegal

JFK - CFN

JFKCFN

New York John F Kennedy Intl

Thu 14/5

09:35-20:00

2 stops29h 25m

Donegal

Mon 18/5

08:00-13:05

2 stops34h 05m

€800

New YorkDonegal

JFK - CFN

JFKCFN

New York John F Kennedy Intl

Sat 28/3

22:10-20:00

1 stop16h 50m

Donegal

Sat 4/4

08:00-21:10

2 stops18h 10m

€823

DenverDonegal

DEN - CFN

DENCFN

Denver Intl

Tue 10/3

18:25-14:00

2 stops37h 35m

Donegal

Wed 25/3

14:30-16:30

2 stops32h 00m

€830

DenverDonegal

DEN - CFN

DENCFN

Denver Intl

Tue 10/3

18:25-14:00

2 stops37h 35m

Donegal

Mon 23/3

14:30-16:30

2 stops56h 00m

€837

New YorkDonegal

JFK - CFN

JFKCFN

New York John F Kennedy Intl

Sat 28/3

23:10-20:00

2 stops15h 50m

Donegal

Sat 4/4

08:00-21:10

2 stops18h 10m

€844

DenverDonegal

DEN - CFN

DENCFN

Denver Intl

Sun 15/3

18:25-14:00

2 stops37h 35m

Donegal

Wed 25/3

14:30-16:30

2 stops32h 00m

€903

ChicagoDonegal

ORD - CFN

ORDCFN

Chicago O'Hare Intl

Fri 27/3

16:50-14:00

1 stop16h 10m

Donegal

Fri 3/4

08:00-19:15

1 stop17h 15m

€1,005

ChicagoDonegal

ORD - CFN

ORDCFN

Chicago O'Hare Intl

Fri 27/3

16:50-14:00

1 stop16h 10m

Donegal

Fri 3/4

08:00-18:15

2 stops16h 15m

€1,136

ChicagoDonegal

ORD - CFN

ORDCFN

Chicago O'Hare Intl

Fri 27/3

06:45-14:00

2 stops26h 15m

Donegal

Fri 3/4

08:00-10:32

2 stops32h 32m

€1,195

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 13h 10m on average, while flying from San Francisco to Knock is 22h 04m 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

17h 25m

Direct flights

None
The fastest flight from United States to Donegal takes 17h 25m
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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