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Cheap flights from Chicago O'Hare Intl Airport to Donegal from €834

This is the cheapest return flight price found by a momondo user in the last 72 hours by searching for a flight from Chicago O'Hare Intl Airport to Donegal departing on 1/9. 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

Find the cheapest flights from Chicago O'Hare Intl Airport to Donegal

Cheap return flights

Enter your travel dates to find the best prices.
Aer Lingus Logo
21:00 - 14:00ORD  Chicago O'Hare Intl-CFN Donegal
11h 00m1 stop Dublin
Aer Lingus Logo
14:30 - 19:15CFN  Donegal-ORD Chicago O'Hare Intl
10h 45m1 stop Dublin
€834Aer Lingus
Tue, 1 Sep - Wed, 9 Sep
Aer Lingus Logo
21:00 - 14:00ORD  Chicago O'Hare Intl-CFN Donegal
11h 00m1 stop Dublin
Aer Lingus Logo
07:55 - 19:15CFN  Donegal-ORD Chicago O'Hare Intl
17h 20m1 stop Dublin
€845Aer Lingus
Mon, 28 Sep - Mon, 5 Oct
Aer Lingus Logo
06:40 - 14:00ORD  Chicago O'Hare Intl-CFN Donegal
25h 20m2 stops Cleveland Hopkins Intl Dublin
Aer Lingus Logo
07:55 - 14:00CFN  Donegal-ORD Chicago O'Hare Intl
12h 05m1 stop Dublin
€856Aer Lingus
Tue, 1 Sep - Wed, 9 Sep
Multiple Airlines Logo
21:00 - 14:00ORD  Chicago O'Hare Intl-CFN Donegal
11h 00m1 stop Dublin
Multiple Airlines Logo
14:30 - 19:15CFN  Donegal-ORD Chicago O'Hare Intl
10h 45m1 stop Dublin
€866Multiple Airlines
Wed, 2 Sep - Wed, 9 Sep
Multiple Airlines Logo
18:30 - 14:00ORD  Chicago O'Hare Intl-CFN Donegal
13h 30m2 stops New York John F Kennedy Intl Dublin
Multiple Airlines Logo
14:30 - 19:15CFN  Donegal-ORD Chicago O'Hare Intl
10h 45m1 stop Dublin
€872Multiple Airlines
Tue, 1 Sep - Tue, 8 Sep
British Airways Logo
18:50 - 20:00ORD  Chicago O'Hare Intl-CFN Donegal
19h 10m2 stops London Heathrow Dublin
British Airways Logo
08:00 - 18:45CFN  Donegal-ORD Chicago O'Hare Intl
16h 45m2 stops Dublin London Heathrow
€888British Airways
Sun, 6 Dec - Thu, 10 Dec
Aer Lingus Logo
15:45 - 14:00ORD  Chicago O'Hare Intl-CFN Donegal
16h 15m1 stop Dublin
Aer Lingus Logo
14:30 - 19:15CFN  Donegal-ORD Chicago O'Hare Intl
10h 45m1 stop Dublin
€890Aer Lingus
Tue, 1 Sep - Fri, 11 Sep
Multiple Airlines Logo
22:25 - 14:00ORD  Chicago O'Hare Intl-CFN Donegal
33h 35m2 stops London Heathrow Dublin
Multiple Airlines Logo
14:30 - 12:30CFN  Donegal-ORD Chicago O'Hare Intl
28h 00m2 stops Dublin London Heathrow
€897Multiple Airlines
Mon, 28 Sep - Mon, 5 Oct
Multiple Airlines Logo
15:45 - 14:00ORD  Chicago O'Hare Intl-CFN Donegal
16h 15m1 stop Dublin
Multiple Airlines Logo
14:30 - 19:15CFN  Donegal-ORD Chicago O'Hare Intl
10h 45m1 stop Dublin
€898Multiple Airlines
Mon, 31 Aug - Tue, 8 Sep
Multiple Airlines Logo
21:00 - 14:00ORD  Chicago O'Hare Intl-CFN Donegal
11h 00m1 stop Dublin
Multiple Airlines Logo
14:30 - 12:30CFN  Donegal-ORD Chicago O'Hare Intl
28h 00m2 stops Dublin London Heathrow
€903Multiple Airlines
Mon, 28 Sep - Mon, 5 Oct

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Aer Lingus flights from Chicago O'Hare Intl Airport to Donegal

Our best Aer Lingus deals on Chicago O'Hare Intl Airport to Donegal flight tickets
Aer Lingus
1 Sept
ORD21:00Chicago O'Hare Intl
11h 00m
1 stop
CFN14:00Donegal
9 Sept
CFN14:30Donegal
10h 45m
1 stop
ORD19:15Chicago O'Hare Intl
€834
Aer Lingus
28 Sept
ORD21:00Chicago O'Hare Intl
11h 00m
1 stop
CFN14:00Donegal
5 Oct
CFN07:55Donegal
17h 20m
1 stop
ORD19:15Chicago O'Hare Intl
€845
Aer Lingus
1 Sept
ORD06:40Chicago O'Hare Intl
25h 20m
2 stops
CFN14:00Donegal
9 Sept
CFN07:55Donegal
12h 05m
1 stop
ORD14:00Chicago O'Hare Intl
€856

British Airways flights from Chicago O'Hare Intl Airport to Donegal

Our best British Airways deals on Chicago O'Hare Intl Airport to Donegal flight tickets
British Airways
6 Dec
ORD18:50Chicago O'Hare Intl
19h 10m
2 stops
CFN20:00Donegal
10 Dec
CFN08:00Donegal
16h 45m
2 stops
ORD18:45Chicago O'Hare Intl
€888
British Airways
1 Sept
ORD19:05Chicago O'Hare Intl
36h 55m
2 stops
CFN14:00Donegal
9 Sept
CFN14:30Donegal
27h 55m
2 stops
ORD12:25Chicago O'Hare Intl
€1,117
British Airways
30 Aug
ORD22:30Chicago O'Hare Intl
33h 30m
2 stops
CFN14:00Donegal
7 Sept
CFN14:30Donegal
29h 20m
2 stops
ORD13:50Chicago O'Hare Intl
€1,133

momondo Fare Finder

 
Customise your flight search to find flights from Chicago O'Hare Intl Airport 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 18 August 2026.
Use the filters below to find and compare flights from Chicago O'Hare Intl Airport to Donegal that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight
Fastest return journey

ChicagoDonegal

ORD Chicago O'Hare Intl - CFN Donegal

ORDCFN

Chicago O'Hare Intl

Tue 1/9

21:00-14:00

1 stop11h 00m

Donegal

Wed 9/9

14:30-19:15

1 stop10h 45m

€834

ChicagoDonegal

ORD Chicago O'Hare Intl - CFN Donegal

ORDCFN

Chicago O'Hare Intl

Mon 28/9

21:00-14:00

1 stop11h 00m

Donegal

Mon 5/10

07:55-19:15

1 stop17h 20m

€845

ChicagoDonegal

ORD Chicago O'Hare Intl - CFN Donegal

ORDCFN

Chicago O'Hare Intl

Tue 1/9

06:40-14:00

2 stops25h 20m

Donegal

Wed 9/9

07:55-14:00

1 stop12h 05m

€856

ChicagoDonegal

ORD Chicago O'Hare Intl - CFN Donegal

ORDCFN

Chicago O'Hare Intl

Wed 2/9

21:00-14:00

1 stop11h 00m

Donegal

Wed 9/9

14:30-19:15

1 stop10h 45m

€866

ChicagoDonegal

ORD Chicago O'Hare Intl - CFN Donegal

ORDCFN

Chicago O'Hare Intl

Tue 1/9

18:30-14:00

2 stops13h 30m

Donegal

Tue 8/9

14:30-19:15

1 stop10h 45m

€872

ChicagoDonegal

ORD Chicago O'Hare Intl - CFN Donegal

ORDCFN

Chicago O'Hare Intl

Sun 6/12

18:50-20:00

2 stops19h 10m

Donegal

Thu 10/12

08:00-18:45

2 stops16h 45m

€888

ChicagoDonegal

ORD Chicago O'Hare Intl - CFN Donegal

ORDCFN

Chicago O'Hare Intl

Tue 1/9

15:45-14:00

1 stop16h 15m

Donegal

Fri 11/9

14:30-19:15

1 stop10h 45m

€890

ChicagoDonegal

ORD Chicago O'Hare Intl - CFN Donegal

ORDCFN

Chicago O'Hare Intl

Mon 28/9

22:25-14:00

2 stops33h 35m

Donegal

Mon 5/10

14:30-12:30

2 stops28h 00m

€897

ChicagoDonegal

ORD Chicago O'Hare Intl - CFN Donegal

ORDCFN

Chicago O'Hare Intl

Mon 31/8

15:45-14:00

1 stop16h 15m

Donegal

Tue 8/9

14:30-19:15

1 stop10h 45m

€898

ChicagoDonegal

ORD Chicago O'Hare Intl - CFN Donegal

ORDCFN

Chicago O'Hare Intl

Mon 28/9

21:00-14:00

1 stop11h 00m

Donegal

Mon 5/10

14:30-12:30

2 stops28h 00m

€903

Flights are sorted by cheapest return flights first.

Sorted by cheapest first

When to book flights from Chicago O'Hare Intl Airport to Donegal

Are you open to changing your travel dates? Check out the ideal times to fly from Chicago O'Hare Intl Airport to Donegal according to our flight data. Find out which month and days have the cheapest flights.
Estimated return price

Cheap Chicago O'Hare Intl Airport to Donegal (ORD to CFN) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Chicago O'Hare Intl Airport to Donegal

Best price found

€834

Fastest flight time

19h 10m

Direct flights

None
The best flight deal from Chicago O'Hare Intl Airport to Donegal found on momondo in the last 72 hours is €834
The fastest flight from Chicago O'Hare Intl Airport to Donegal takes 19h 10m
There are no direct flights from Chicago O'Hare Intl Airport to Donegal. There are no popular flight routes from Chicago O'Hare Intl Airport to Donegal.
Search flight deals

Frequently asked questions about flying from Chicago O'Hare Intl Airport to Donegal

  • How far is Chicago O'Hare Intl to Donegal by plane?

    The distance between Chicago O'Hare Intl and Donegal is about 5728.5 km. Typically, this will take 19h 10m by plane in normal conditions.

  • When did momondo last update prices for flights from Chicago O'Hare Intl Airport to Donegal Airport?

    Prices for flights from Chicago O'Hare Intl Airport to Donegal Airport were last updated today.

  • How old do you have to be to fly from Chicago O'Hare Intl Airport 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 Chicago O'Hare Intl Airport 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.

Frequently asked questions about flying from Chicago O'Hare Intl Airport to Donegal

  • How do I get Price Alerts for flights from Chicago O'Hare Intl Airport to Donegal?

    You can take advantage of momondo’s Price Alerts by first searching for your flights to Chicago O'Hare Intl Airport from Donegal. Flight offers will be shown to you in real-time. From there you can create a Price Alert by using our on-site widget.

  • How can I save money on flights from Chicago O'Hare Intl Airport to Donegal with momondo?

    By using tools like our “Price Calendar”, you can see the best days for return flights on your travels. Our “Price Forecast” tool uses AI to predict whether you should purchase or hold off on booking for potentially cheaper prices. Explore shows you all flight options from a city or airport to build your own unique adventure. The Discover blog also provides valuable insights for saving money while booking your experience. After searching you can toggle on “Price Alerts” to track prices for your desired flight and book at the ideal moment.

  • How does momondo find its flight prices?

    We show prices from over 700+ competitors with a single click. With options from airlines and OTAs from across our 30 international markets, we are able to show you a diverse range of deals to create your adventure.

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 Chicago to Donegal?

Finding the right flight to Donegal from Chicago 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 Chicago to Donegal with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Chicago to Donegal flights to just show those with flexible booking policies.

How can momondo help me find flights from Chicago to Donegal?

Once you have performed a search for Chicago to Donegal flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Chicago to Donegal right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Chicago to Donegal now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Donegal and let you know when they change.

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