Latest deals
Insights
FAQs
Price Alerts

Cheap flights from the United States to Donegal from €670

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 3/9. 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
Voted the Winner of Europe's Best Travel App 2023

Save money when you book flights with momondo

Big names, great deals

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customise your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

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
06:30 - 07:35
JFK
-
CFN
20h 05m
2 stops
Aer Lingus Logo
08:00 - 13:40
CFN
-
JFK
10h 40m
1 stop
€670Aer Lingus
Thu, 3 Sep - Sat, 12 Sep
Aer Lingus Logo
23:55 - 20:00
JFK
-
CFN
15h 05m
1 stop
Aer Lingus Logo
20:30 - 19:20
CFN
-
JFK
27h 50m
1 stop
€683Aer Lingus
Thu, 3 Sep - Sat, 12 Sep
Multiple Airlines Logo
23:55 - 20:00
JFK
-
CFN
15h 05m
1 stop
Multiple Airlines Logo
08:00 - 21:40
CFN
-
JFK
42h 40m
2 stops
€714Multiple Airlines
Tue, 28 Apr - Tue, 5 May
Multiple Airlines Logo
16:55 - 07:35
JFK
-
CFN
9h 40m
1 stop
Multiple Airlines Logo
08:00 - 13:40
CFN
-
JFK
10h 40m
1 stop
€755Multiple Airlines
Tue, 28 Apr - Tue, 5 May
Aer Lingus Logo
21:05 - 20:00
JFK
-
CFN
17h 55m
1 stop
Aer Lingus Logo
08:00 - 08:00
CFN
-
JFK
29h 00m
2 stops
€766Aer Lingus
Fri, 15 May - Mon, 18 May
Aer Lingus Logo
22:40 - 20:00
JFK
-
CFN
16h 20m
2 stops
Aer Lingus Logo
08:00 - 22:25
CFN
-
JFK
19h 25m
1 stop
€767Aer Lingus
Wed, 15 Jul - Wed, 29 Jul
Aer Lingus Logo
22:18 - 20:00
ORD
-
CFN
39h 42m
2 stops
Aer Lingus Logo
08:00 - 14:00
CFN
-
ORD
12h 00m
1 stop
€776Aer Lingus
Tue, 2 Jun - Wed, 2 Sep
Aer Lingus Logo
15:45 - 07:35
ORD
-
CFN
9h 50m
1 stop
Aer Lingus Logo
20:30 - 19:15
CFN
-
ORD
28h 45m
1 stop
€778Aer Lingus
Tue, 2 Jun - Wed, 2 Sep
Aer Lingus Logo
15:45 - 07:35
ORD
-
CFN
9h 50m
1 stop
Aer Lingus Logo
20:30 - 14:00
CFN
-
ORD
23h 30m
1 stop
€783Aer Lingus
Wed, 29 Apr - Wed, 6 May
Multiple Airlines Logo
19:25 - 20:00
ORD
-
CFN
18h 35m
2 stops
Multiple Airlines Logo
08:00 - 18:15
CFN
-
ORD
16h 15m
2 stops
€792Multiple Airlines
Tue, 2 Jun - Wed, 2 Sep

Aer Lingus flights from United States to Donegal

Our best Aer Lingus deals on United States to Donegal flight tickets
Aer Lingus
1 May
JFK21:05New York John F Kennedy Intl
17h 55m
1 stop
CFN20:00Donegal
8 May
CFN08:00Donegal
10h 40m
1 stop
JFK13:40New York John F Kennedy Intl
€506
Aer Lingus
3 Sept
JFK06:30New York John F Kennedy Intl
20h 05m
2 stops
CFN07:35Donegal
12 Sept
CFN08:00Donegal
10h 40m
1 stop
JFK13:40New York John F Kennedy Intl
€670
Aer Lingus
3 Sept
JFK23:55New York John F Kennedy Intl
15h 05m
1 stop
CFN20:00Donegal
12 Sept
CFN20:30Donegal
27h 50m
1 stop
JFK19:20New York John F Kennedy Intl
€683

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 March 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

Thu 3/9

06:30-07:35

2 stops20h 05m

Donegal

Sat 12/9

08:00-13:40

1 stop10h 40m

€670

New YorkDonegal

JFK - CFN

JFKCFN

New York John F Kennedy Intl

Thu 3/9

23:55-20:00

1 stop15h 05m

Donegal

Sat 12/9

20:30-19:20

1 stop27h 50m

€683

New YorkDonegal

JFK - CFN

JFKCFN

New York John F Kennedy Intl

Tue 28/4

23:55-20:00

1 stop15h 05m

Donegal

Tue 5/5

08:00-21:40

2 stops42h 40m

€714
Fastest return journey

New YorkDonegal

JFK - CFN

JFKCFN

New York John F Kennedy Intl

Tue 28/4

16:55-07:35

1 stop9h 40m

Donegal

Tue 5/5

08:00-13:40

1 stop10h 40m

€755

New YorkDonegal

JFK - CFN

JFKCFN

New York John F Kennedy Intl

Fri 15/5

21:05-20:00

1 stop17h 55m

Donegal

Mon 18/5

08:00-08:00

2 stops29h 00m

€766

New YorkDonegal

JFK - CFN

JFKCFN

New York John F Kennedy Intl

Wed 15/7

22:40-20:00

2 stops16h 20m

Donegal

Wed 29/7

08:00-22:25

1 stop19h 25m

€767

ChicagoDonegal

ORD - CFN

ORDCFN

Chicago O'Hare Intl

Tue 2/6

22:18-20:00

2 stops39h 42m

Donegal

Wed 2/9

08:00-14:00

1 stop12h 00m

€776

ChicagoDonegal

ORD - CFN

ORDCFN

Chicago O'Hare Intl

Tue 2/6

15:45-07:35

1 stop9h 50m

Donegal

Wed 2/9

20:30-19:15

1 stop28h 45m

€778

ChicagoDonegal

ORD - CFN

ORDCFN

Chicago O'Hare Intl

Wed 29/4

15:45-07:35

1 stop9h 50m

Donegal

Wed 6/5

20:30-14:00

1 stop23h 30m

€783

ChicagoDonegal

ORD - CFN

ORDCFN

Chicago O'Hare Intl

Tue 2/6

19:25-20:00

2 stops18h 35m

Donegal

Wed 2/9

08:00-18:15

2 stops16h 15m

€792

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 55m on average, while flying from San Francisco to Knock is 17h 53m 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 50m

Direct flights

None
The fastest flight from United States to Donegal takes 9h 50m
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

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Thu 16/4
Thu 23/4
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Ireland