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Cheap flights from Chicago to Donegal from $782

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 9/9. 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

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Find the cheapest flights from Chicago to Donegal

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
9:00 pm - 2:00 pm
ORD
-
CFN
11h 00m
1 stop
Multiple Airlines Logo
2:30 pm - 11:00 am
CFN
-
ORD
50h 30m
2 stops
$782Multiple Airlines
ons., sep. 9 - ons., sep. 23
Aer Lingus Logo
9:00 pm - 8:00 pm
ORD
-
CFN
17h 00m
1 stop
Aer Lingus Logo
2:30 pm - 7:15 pm
CFN
-
ORD
10h 45m
1 stop
$1,030Aer Lingus
ons., sep. 9 - ons., sep. 23
Aer Lingus Logo
4:45 pm - 2:00 pm
ORD
-
CFN
15h 15m
2 stops
Aer Lingus Logo
7:55 am - 7:45 pm
CFN
-
ORD
17h 50m
2 stops
$1,093Aer Lingus
ons., sep. 9 - ons., sep. 23
Aer Lingus Logo
3:45 pm - 2:00 pm
ORD
-
CFN
16h 15m
1 stop
Aer Lingus Logo
7:55 am - 2:00 pm
CFN
-
ORD
12h 05m
1 stop
$1,228Aer Lingus
lør., juli 18 - lør., juli 25
Aer Lingus Logo
9:00 pm - 2:00 pm
ORD
-
CFN
11h 00m
1 stop
Aer Lingus Logo
7:55 am - 5:50 pm
CFN
-
ORD
15h 55m
2 stops
$1,230Aer Lingus
lør., juli 18 - lør., juli 25
Aer Lingus Logo
3:07 pm - 2:00 pm
ORD
-
CFN
16h 53m
2 stops
Aer Lingus Logo
7:55 am - 5:50 pm
CFN
-
ORD
15h 55m
2 stops
$1,235Aer Lingus
lør., juli 18 - lør., juli 25
Multiple Airlines Logo
10:25 pm - 8:00 pm
ORD
-
CFN
15h 35m
3 stops
Multiple Airlines Logo
7:55 am - 7:40 pm
CFN
-
ORD
17h 45m
2 stops
$1,369Multiple Airlines
lør., juli 18 - lør., juli 25
Multiple Airlines Logo
8:20 pm - 2:00 pm
ORD
-
CFN
11h 40m
1 stop
Multiple Airlines Logo
2:30 pm - 1:40 pm
CFN
-
ORD
29h 10m
1 stop
$1,423Multiple Airlines
søn., juni 21 - man., juni 29
Multiple Airlines Logo
3:45 pm - 8:00 pm
ORD
-
CFN
22h 15m
1 stop
Multiple Airlines Logo
7:55 am - 4:40 pm
CFN
-
ORD
38h 45m
2 stops
$1,450Multiple Airlines
søn., juni 21 - søn., juni 28
Multiple Airlines Logo
9:00 pm - 2:00 pm
ORD
-
CFN
11h 00m
1 stop
Multiple Airlines Logo
2:30 pm - 4:40 pm
CFN
-
ORD
56h 10m
2 stops
$1,464Multiple Airlines
lør., juni 20 - man., juni 29

Aer Lingus flights from Chicago to Donegal

Our best Aer Lingus deals on Chicago to Donegal flight tickets
Aer Lingus
Jun 21
ORD6:41 amChicago O'Hare Intl
25h 19m
2 stops
CFN2:00 pmDonegal
Jun 28
CFN2:30 pmDonegal
47h 50m
2 stops
ORD8:20 amChicago O'Hare Intl
$1,506
Aer Lingus
Jun 20
ORD7:29 pmChicago O'Hare Intl
42h 31m
2 stops
CFN8:00 pmDonegal
Jun 28
CFN2:30 pmDonegal
52h 00m
2 stops
ORD12:30 pmChicago O'Hare Intl
$1,523

British Airways flights from Chicago to Donegal

Our best British Airways deals on Chicago to Donegal flight tickets
British Airways
Jun 20
ORD8:50 pmChicago O'Hare Intl
35h 10m
2 stops
CFN2:00 pmDonegal
Jun 29
CFN2:30 pmDonegal
27h 55m
2 stops
ORD12:25 pmChicago O'Hare Intl
$1,593
British Airways
Jun 21
ORD9:15 pmChicago O'Hare Intl
34h 45m
2 stops
CFN2:00 pmDonegal
Jun 29
CFN2:30 pmDonegal
27h 55m
2 stops
ORD12:25 pmChicago O'Hare Intl
$1,628

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 juni 7, 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

ChicagoDonegal

ORD - CFN

ORDCFN

Chicago O'Hare Intl

ons. 9/9

9:00 pm-2:00 pm

1 stop11h 00m

Donegal

ons. 9/23

2:30 pm-11:00 am

2 stops50h 30m

$782

ChicagoDonegal

ORD - CFN

ORDCFN

Chicago O'Hare Intl

ons. 9/9

9:00 pm-8:00 pm

1 stop17h 00m

Donegal

ons. 9/23

2:30 pm-7:15 pm

1 stop10h 45m

$1,030

ChicagoDonegal

ORD - CFN

ORDCFN

Chicago O'Hare Intl

ons. 9/9

4:45 pm-2:00 pm

2 stops15h 15m

Donegal

ons. 9/23

7:55 am-7:45 pm

2 stops17h 50m

$1,093

ChicagoDonegal

ORD - CFN

ORDCFN

Chicago O'Hare Intl

lør. 7/18

3:45 pm-2:00 pm

1 stop16h 15m

Donegal

lør. 7/25

7:55 am-2:00 pm

1 stop12h 05m

$1,228
Quickest round-trip

ChicagoDonegal

ORD - CFN

ORDCFN

Chicago O'Hare Intl

lør. 7/18

9:00 pm-2:00 pm

1 stop11h 00m

Donegal

lør. 7/25

7:55 am-5:50 pm

2 stops15h 55m

$1,230

ChicagoDonegal

ORD - CFN

ORDCFN

Chicago O'Hare Intl

lør. 7/18

3:07 pm-2:00 pm

2 stops16h 53m

Donegal

lør. 7/25

7:55 am-5:50 pm

2 stops15h 55m

$1,235

ChicagoDonegal

ORD - CFN

ORDCFN

Chicago O'Hare Intl

lør. 7/18

10:25 pm-8:00 pm

3 stops15h 35m

Donegal

lør. 7/25

7:55 am-7:40 pm

2 stops17h 45m

$1,369

ChicagoDonegal

ORD - CFN

ORDCFN

Chicago O'Hare Intl

søn. 6/21

8:20 pm-2:00 pm

1 stop11h 40m

Donegal

man. 6/29

2:30 pm-1:40 pm

1 stop29h 10m

$1,423

ChicagoDonegal

ORD - CFN

ORDCFN

Chicago O'Hare Intl

søn. 6/21

3:45 pm-8:00 pm

1 stop22h 15m

Donegal

søn. 6/28

7:55 am-4:40 pm

2 stops38h 45m

$1,450

ChicagoDonegal

ORD - CFN

ORDCFN

Chicago O'Hare Intl

lør. 6/20

9:00 pm-2:00 pm

1 stop11h 00m

Donegal

man. 6/29

2:30 pm-4:40 pm

2 stops56h 10m

$1,464

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

22h 15m

Direct flights

None
The fastest flight from Chicago to Donegal takes 22h 15m
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 22h 15m.

  • 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.

An easier way to manage your Donegal trip

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