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$382+ Cheap flights from Chicago (CHI) to Donegal (CFN)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/8. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — CFN
Apr 10 — Apr 171
Fri 4/10
Fri 4/17
1 adult, Economy
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Cheap flight deals from Chicago to Donegal

Cheapest flights from Chicago to Donegal
Explore the most affordable flight options available from Chicago to Donegal. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 11, 2026.

This Kiwi.com deal was found by Cheapflights users on 3/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/239:00 pm
ORD
-
CFN
1 stop17h 00m
Aer Lingus
Thu 4/308:00 am
CFN
-
ORD
1 stop12h 00m
Aer Lingus
Deal found 3/8$661
This oojo deal was found by Cheapflights users on 3/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/234:50 pm
ORD
-
CFN
1 stop16h 10m
Aer Lingus
Sun 3/298:30 pm
CFN
-
ORD
2 stops41h 15m
Aer Lingus
Deal found 3/6$940
This Expedia deal was found by Cheapflights users on 3/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/235:55 pm
ORD
-
CFN
2 stops31h 40m
Multiple Airlines
Thu 4/308:30 pm
CFN
-
ORD
2 stops24h 25m
Multiple Airlines
Deal found 3/8$947
This Trip.com deal was found by Cheapflights users on 3/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/239:35 pm
ORD
-
CFN
2 stops17h 25m
Multiple Airlines
Sun 3/298:30 pm
CFN
-
ORD
2 stops48h 30m
Multiple Airlines
Deal found 3/6$1,061

Find flight deals from Chicago to Donegal

Discover tips and strategies to find the most affordable flight options for your journey from Chicago (CHI) to Donegal (CFN). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated March 11, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$661
(Kiwi.com)

One-way from

$382
(Kiwi.com)
Provider with most accurate pricing for Chicago (CHI)-Donegal flight deals.
Search Deals
Provider most trusted by Cheapflights users for Chicago (CHI)-Donegal flights.
Search Deals
From Chicago (CHI) to Donegal
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One-way flight from Chicago (CHI) to Donegal
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Cheapflights 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, Cheapflights users made 2,558,603 searches. Data last updated March 11, 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 - CFN

ORDCFN

Chicago O'Hare Intl

Thu 4/23

9:00 pm-8:00 pm

1 stop17h 00m

Donegal

Thu 4/30

8:00 am-2:00 pm

1 stop12h 00m

$661

ChicagoDonegal

ORD - CFN

ORDCFN

Chicago O'Hare Intl

Mon 3/23

4:50 pm-2:00 pm

1 stop16h 10m

Donegal

Sun 3/29

8:30 pm-7:45 am

2 stops41h 15m

$940

ChicagoDonegal

ORD - CFN

ORDCFN

Chicago O'Hare Intl

Thu 4/23

5:55 pm-7:35 am

2 stops31h 40m

Donegal

Thu 4/30

8:30 pm-2:55 pm

2 stops24h 25m

$947

ChicagoDonegal

ORD - CFN

ORDCFN

Chicago O'Hare Intl

Mon 3/23

9:35 pm-8:00 pm

2 stops17h 25m

Donegal

Sun 3/29

8:30 pm-3:00 pm

2 stops48h 30m

$1,061
Cheapest one-way
Quickest one-way

ChicagoDonegal

ORD - CFN

ORDCFN

Chicago O'Hare Intl

Sat 8/8

3:45 pm-7:35 am

1 stop9h 50m

$382

ChicagoDonegal

ORD - CFN

ORDCFN

Chicago O'Hare Intl

Mon 8/31

3:45 pm-7:35 am

1 stop9h 50m

$394

ChicagoDonegal

ORD - CFN

ORDCFN

Chicago O'Hare Intl

Sat 8/8

3:35 pm-8:00 pm

3 stops22h 25m

$415

ChicagoDonegal

ORD - CFN

ORDCFN

Chicago O'Hare Intl

Mon 8/31

7:15 pm-7:35 am

2 stops30h 20m

$469

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/7

Sorted by cheapest first
  • Most accurate provider: When it comes to deals on Chicago-Donegal flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Chicago-Donegal flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Chicago-Donegal flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Chicago-Donegal flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Chicago-Donegal flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Chicago to Donegal

Have a flexible travel schedule? Discover the best time to fly to Donegal from Chicago with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Chicago to Donegal
No data available for this route at this time. Please check back soon.

Related info for your journey

Find useful and relevant information for your journey from Chicago to Donegal. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Donegal from Chicago?

    For a flight from Chicago to Donegal, you will be flying into Donegal. Donegal (CFN) is just 28.5 mi from the center of the city. Donegal is the only Donegal airport and it handles 0 inbound flights from Chicago per day. 0 airlines have flights to Donegal from Chicago on a regular basis.

  • How long is the flight from Chicago to Donegal?

    Departing from Chicago to Donegal will take you 17h. Chicago and Donegal are separated by a distance of 3541 mi.

  • Can I find deals for flights from Chicago to Donegal that include hotel bookings?

    Yes. In addition to deals on Chicago to Donegal flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Chicago to Donegal?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Chicago to Donegal.

  • Can I find deals for business class flights from Chicago to Donegal?

    Yes. Cheapflights offers flight deals from Chicago to Donegal by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

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