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Cheap flights from Chicago to Donegal from $966

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Chicago to Donegal departing on 9/1. 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 to Donegal

Cheap round-trip flights

Enter your travel dates to find the best prices.
Aer Lingus Logo
9:00 pm - 2:00 pmORD  Chicago O'Hare Intl-CFN Donegal
11h 00m1 stop Dublin
Aer Lingus Logo
2:30 pm - 7:15 pmCFN  Donegal-ORD Chicago O'Hare Intl
10h 45m1 stop Dublin
$966Aer Lingus
Tue, Sep 1 - Wed, Sep 9
Aer Lingus Logo
9:00 pm - 2:00 pmORD  Chicago O'Hare Intl-CFN Donegal
11h 00m1 stop Dublin
Aer Lingus Logo
7:55 am - 7:15 pmCFN  Donegal-ORD Chicago O'Hare Intl
17h 20m1 stop Dublin
$979Aer Lingus
Mon, Sep 28 - Mon, Oct 5
Aer Lingus Logo
6:40 am - 2:00 pmORD  Chicago O'Hare Intl-CFN Donegal
25h 20m2 stops Cleveland Hopkins Intl Dublin
Aer Lingus Logo
7:55 am - 2:00 pmCFN  Donegal-ORD Chicago O'Hare Intl
12h 05m1 stop Dublin
$992Aer Lingus
Tue, Sep 1 - Wed, Sep 9
Multiple Airlines Logo
9:00 pm - 2:00 pmORD  Chicago O'Hare Intl-CFN Donegal
11h 00m1 stop Dublin
Multiple Airlines Logo
2:30 pm - 7:15 pmCFN  Donegal-ORD Chicago O'Hare Intl
10h 45m1 stop Dublin
$1,003Multiple Airlines
Wed, Sep 2 - Wed, Sep 9
Multiple Airlines Logo
6:30 pm - 2:00 pmORD  Chicago O'Hare Intl-CFN Donegal
13h 30m2 stops New York John F Kennedy Intl Dublin
Multiple Airlines Logo
2:30 pm - 7:15 pmCFN  Donegal-ORD Chicago O'Hare Intl
10h 45m1 stop Dublin
$1,011Multiple Airlines
Tue, Sep 1 - Tue, Sep 8
Aer Lingus Logo
6:45 am - 2:00 pmORD  Chicago O'Hare Intl-CFN Donegal
25h 15m2 stops Denver Intl Dublin
Aer Lingus Logo
7:55 am - 7:15 pmCFN  Donegal-ORD Chicago O'Hare Intl
17h 20m1 stop Dublin
$1,019Aer Lingus
Wed, Aug 26 - Wed, Sep 2
British Airways Logo
6:50 pm - 8:00 pmORD  Chicago O'Hare Intl-CFN Donegal
19h 10m2 stops London Heathrow Dublin
British Airways Logo
8:00 am - 6:45 pmCFN  Donegal-ORD Chicago O'Hare Intl
16h 45m2 stops Dublin London Heathrow
$1,029British Airways
Sun, Dec 6 - Thu, Dec 10
Aer Lingus Logo
3:45 pm - 2:00 pmORD  Chicago O'Hare Intl-CFN Donegal
16h 15m1 stop Dublin
Aer Lingus Logo
2:30 pm - 7:15 pmCFN  Donegal-ORD Chicago O'Hare Intl
10h 45m1 stop Dublin
$1,031Aer Lingus
Tue, Sep 1 - Fri, Sep 11
Multiple Airlines Logo
10:25 pm - 2:00 pmORD  Chicago O'Hare Intl-CFN Donegal
33h 35m2 stops London Heathrow Dublin
Multiple Airlines Logo
2:30 pm - 12:30 pmCFN  Donegal-ORD Chicago O'Hare Intl
28h 00m2 stops Dublin London Heathrow
$1,039Multiple Airlines
Mon, Sep 28 - Mon, Oct 5
Multiple Airlines Logo
3:45 pm - 2:00 pmORD  Chicago O'Hare Intl-CFN Donegal
16h 15m1 stop Dublin
Multiple Airlines Logo
2:30 pm - 7:15 pmCFN  Donegal-ORD Chicago O'Hare Intl
10h 45m1 stop Dublin
$1,041Multiple Airlines
Mon, Aug 31 - Tue, Sep 8

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Aer Lingus flights from Chicago to Donegal

Our best Aer Lingus deals on Chicago to Donegal flight tickets
Aer Lingus
Sep 1
ORD9:00 pmChicago O'Hare Intl
11h 00m
1 stop
CFN2:00 pmDonegal
Sep 9
CFN2:30 pmDonegal
10h 45m
1 stop
ORD7:15 pmChicago O'Hare Intl
$966
Aer Lingus
Sep 28
ORD9:00 pmChicago O'Hare Intl
11h 00m
1 stop
CFN2:00 pmDonegal
Oct 5
CFN7:55 amDonegal
17h 20m
1 stop
ORD7:15 pmChicago O'Hare Intl
$979
Aer Lingus
Sep 1
ORD6:40 amChicago O'Hare Intl
25h 20m
2 stops
CFN2:00 pmDonegal
Sep 9
CFN7:55 amDonegal
12h 05m
1 stop
ORD2:00 pmChicago O'Hare Intl
$992

British Airways flights from Chicago to Donegal

Our best British Airways deals on Chicago to Donegal flight tickets
British Airways
Dec 6
ORD6:50 pmChicago O'Hare Intl
19h 10m
2 stops
CFN8:00 pmDonegal
Dec 10
CFN8:00 amDonegal
16h 45m
2 stops
ORD6:45 pmChicago O'Hare Intl
$1,029
British Airways
Oct 16
ORD5:00 pmChicago O'Hare Intl
15h 00m
2 stops
CFN2:00 pmDonegal
Oct 20
CFN2:30 pmDonegal
33h 45m
2 stops
ORD6:15 pmChicago O'Hare Intl
$1,154
British Airways
Sep 1
ORD7:05 pmChicago O'Hare Intl
36h 55m
2 stops
CFN2:00 pmDonegal
Sep 9
CFN2:30 pmDonegal
27h 55m
2 stops
ORD12:25 pmChicago O'Hare Intl
$1,294

momondo Fare Finder

 
Customize your flight search to find flights from Chicago 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 832,500 searches. Data last updated August 15, 2026.
Use the filters below to find and compare flights from Chicago to Donegal that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

ChicagoDonegal

ORD Chicago O'Hare Intl - CFN Donegal

ORDCFN

Chicago O'Hare Intl

Tue 9/1

9:00 pm-2:00 pm

1 stop11h 00m

Donegal

Wed 9/9

2:30 pm-7:15 pm

1 stop10h 45m

$966

ChicagoDonegal

ORD Chicago O'Hare Intl - CFN Donegal

ORDCFN

Chicago O'Hare Intl

Mon 9/28

9:00 pm-2:00 pm

1 stop11h 00m

Donegal

Mon 10/5

7:55 am-7:15 pm

1 stop17h 20m

$979

ChicagoDonegal

ORD Chicago O'Hare Intl - CFN Donegal

ORDCFN

Chicago O'Hare Intl

Tue 9/1

6:40 am-2:00 pm

2 stops25h 20m

Donegal

Wed 9/9

7:55 am-2:00 pm

1 stop12h 05m

$992

ChicagoDonegal

ORD Chicago O'Hare Intl - CFN Donegal

ORDCFN

Chicago O'Hare Intl

Wed 9/2

9:00 pm-2:00 pm

1 stop11h 00m

Donegal

Wed 9/9

2:30 pm-7:15 pm

1 stop10h 45m

$1,003

ChicagoDonegal

ORD Chicago O'Hare Intl - CFN Donegal

ORDCFN

Chicago O'Hare Intl

Tue 9/1

6:30 pm-2:00 pm

2 stops13h 30m

Donegal

Tue 9/8

2:30 pm-7:15 pm

1 stop10h 45m

$1,011

ChicagoDonegal

ORD Chicago O'Hare Intl - CFN Donegal

ORDCFN

Chicago O'Hare Intl

Wed 8/26

6:45 am-2:00 pm

2 stops25h 15m

Donegal

Wed 9/2

7:55 am-7:15 pm

1 stop17h 20m

$1,019

ChicagoDonegal

ORD Chicago O'Hare Intl - CFN Donegal

ORDCFN

Chicago O'Hare Intl

Sun 12/6

6:50 pm-8:00 pm

2 stops19h 10m

Donegal

Thu 12/10

8:00 am-6:45 pm

2 stops16h 45m

$1,029

ChicagoDonegal

ORD Chicago O'Hare Intl - CFN Donegal

ORDCFN

Chicago O'Hare Intl

Tue 9/1

3:45 pm-2:00 pm

1 stop16h 15m

Donegal

Fri 9/11

2:30 pm-7:15 pm

1 stop10h 45m

$1,031

ChicagoDonegal

ORD Chicago O'Hare Intl - CFN Donegal

ORDCFN

Chicago O'Hare Intl

Mon 9/28

10:25 pm-2:00 pm

2 stops33h 35m

Donegal

Mon 10/5

2:30 pm-12:30 pm

2 stops28h 00m

$1,039

ChicagoDonegal

ORD Chicago O'Hare Intl - CFN Donegal

ORDCFN

Chicago O'Hare Intl

Mon 8/31

3:45 pm-2:00 pm

1 stop16h 15m

Donegal

Tue 9/8

2:30 pm-7:15 pm

1 stop10h 45m

$1,041

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

When to book flights from Chicago to Donegal

Are you open to changing your travel dates? Check out the ideal times to fly from Chicago to Donegal according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Chicago to Donegal (CHI to CFN) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Chicago to Donegal

Fastest flight time

11h 00m

Direct flights

None
The fastest flight from Chicago to Donegal takes 11h 00m
There are no direct flights from Chicago to Donegal. There are no popular flight routes from Chicago to Donegal.
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Frequently asked questions about flying from Chicago to Donegal

  • How far is Chicago to Donegal by plane?

    Chicago and Donegal are 3554.1 mi apart from one another. By plane, this route typically takes 11h 00m.

  • When did momondo last update prices for flights from Chicago to Donegal Airport?

    Prices for flights from Chicago to Donegal Airport are updated daily.

  • How old do you have to be to fly from Chicago to Donegal Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Chicago to Donegal Airport.

  • What documentation or ID do you need to fly to Donegal Airport?

    The necessary travel and health documents for your Donegal Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Frequently asked questions about flying from Chicago to Donegal

  • How do I get Price Alerts for flights from Chicago to Donegal?

    Confirm your travel details to search for the latest offers for flights from Chicago to Donegal. While browsing offers there will be the option to toggle “Price Alerts”. You’ll then receive updates when prices for the flight route increase or decrease.

  • How can I save money on flights from Chicago to Donegal with momondo?

    By using tools like our “Price Calendar”, you can see the best day to fly round-trip for 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.

Traveling to a place near Donegal?

Book flights to Donegal if you plan to visit one of these locations
Letterkenny
Killybegs

Why use momondo?

Why should I use momondo to find a flight deal from Chicago to Donegal?

It is quick and easy to find Chicago to Donegal flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Donegal that suits you.

Can I find flights from Chicago to Donegal with flexible booking policies on momondo?

All flight searches from Chicago to Donegal on momondo can be filtered to show those which offer flexible booking policies.

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

momondo helps you find the best flight between Chicago and Donegal by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

If you are simply researching potential flights to Donegal, momondo offers a useful price alert feature which will track prices for flights to Donegal from Chicago and alert you when they change.

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