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Cheap flights from Chicago to Donegal from $278

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Chicago to Donegal departing on 4/19. 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
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
3:45 pm - 7:35 am
ORD
-
CFN
9h 50m
1 stop
Multiple Airlines Logo
8:00 am - 7:15 pm
CFN
-
ORD
17h 15m
1 stop
$849Multiple Airlines
Fri, Apr 17 - Fri, Apr 24
Aer Lingus Logo
3:45 pm - 7:35 am
ORD
-
CFN
9h 50m
1 stop
Aer Lingus Logo
8:00 am - 6:19 am
CFN
-
ORD
28h 19m
2 stops
$872Aer Lingus
Fri, Apr 17 - Fri, Apr 24
Aer Lingus Logo
4:50 pm - 2:00 pm
ORD
-
CFN
16h 10m
1 stop
Aer Lingus Logo
8:30 pm - 7:45 am
CFN
-
ORD
41h 15m
2 stops
$940Aer Lingus
Mon, Mar 23 - Sun, Mar 29
Multiple Airlines Logo
8:35 pm - 7:35 am
ORD
-
CFN
29h 00m
2 stops
Multiple Airlines Logo
8:30 pm - 5:35 pm
CFN
-
ORD
27h 05m
2 stops
$948Multiple Airlines
Fri, Apr 17 - Fri, Apr 24
Multiple Airlines Logo
10:30 pm - 8:00 pm
ORD
-
CFN
15h 30m
2 stops
Multiple Airlines Logo
8:30 pm - 12:20 pm
CFN
-
ORD
21h 50m
2 stops
$972Multiple Airlines
Thu, Apr 23 - Mon, Apr 27
Aer Lingus Logo
8:40 pm - 8:00 pm
ORD
-
CFN
18h 20m
1 stop
Aer Lingus Logo
8:30 pm - 2:00 pm
CFN
-
ORD
23h 30m
1 stop
$984Aer Lingus
Mon, Mar 23 - Sun, Mar 29
Aer Lingus Logo
9:00 pm - 8:00 pm
ORD
-
CFN
17h 00m
1 stop
Aer Lingus Logo
8:30 pm - 2:00 pm
CFN
-
ORD
23h 30m
1 stop
$998Aer Lingus
Thu, Apr 23 - Mon, Apr 27
Multiple Airlines Logo
3:45 pm - 7:35 am
ORD
-
CFN
9h 50m
1 stop
Multiple Airlines Logo
8:30 pm - 12:20 pm
CFN
-
ORD
21h 50m
2 stops
$999Multiple Airlines
Thu, Apr 23 - Mon, Apr 27
Multiple Airlines Logo
9:35 pm - 8:00 pm
ORD
-
CFN
17h 25m
2 stops
Multiple Airlines Logo
8:30 pm - 3:00 pm
CFN
-
ORD
48h 30m
2 stops
$1,061Multiple Airlines
Mon, Mar 23 - Sun, Mar 29
Multiple Airlines Logo
6:01 pm - 8:00 pm
ORD
-
CFN
20h 59m
3 stops
Multiple Airlines Logo
8:30 pm - 9:40 am
CFN
-
ORD
43h 10m
3 stops
$1,444Multiple Airlines
Mon, Mar 23 - Sun, Mar 29

Aer Lingus flights from Chicago to Donegal

Our best Aer Lingus deals on Chicago to Donegal flight tickets
Aer Lingus
Apr 17
ORD3:45 pmChicago O'Hare Intl
9h 50m
1 stop
CFN7:35 amDonegal
Apr 24
CFN8:00 amDonegal
28h 19m
2 stops
ORD6:19 amChicago O'Hare Intl
$872
Aer Lingus
Mar 23
ORD4:50 pmChicago O'Hare Intl
16h 10m
1 stop
CFN2:00 pmDonegal
Mar 29
CFN8:30 pmDonegal
41h 15m
2 stops
ORD7:45 amChicago O'Hare Intl
$940
Aer Lingus
Mar 23
ORD8:40 pmChicago O'Hare Intl
18h 20m
1 stop
CFN8:00 pmDonegal
Mar 29
CFN8:30 pmDonegal
23h 30m
1 stop
ORD2:00 pmChicago O'Hare Intl
$984

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 March 8, 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

Fri 4/17

3:45 pm-7:35 am

1 stop9h 50m

Donegal

Fri 4/24

8:00 am-7:15 pm

1 stop17h 15m

$849

ChicagoDonegal

ORD - CFN

ORDCFN

Chicago O'Hare Intl

Fri 4/17

3:45 pm-7:35 am

1 stop9h 50m

Donegal

Fri 4/24

8:00 am-6:19 am

2 stops28h 19m

$872

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

Fri 4/17

8:35 pm-7:35 am

2 stops29h 00m

Donegal

Fri 4/24

8:30 pm-5:35 pm

2 stops27h 05m

$948

ChicagoDonegal

ORD - CFN

ORDCFN

Chicago O'Hare Intl

Thu 4/23

10:30 pm-8:00 pm

2 stops15h 30m

Donegal

Mon 4/27

8:30 pm-12:20 pm

2 stops21h 50m

$972

ChicagoDonegal

ORD - CFN

ORDCFN

Chicago O'Hare Intl

Mon 3/23

8:40 pm-8:00 pm

1 stop18h 20m

Donegal

Sun 3/29

8:30 pm-2:00 pm

1 stop23h 30m

$984

ChicagoDonegal

ORD - CFN

ORDCFN

Chicago O'Hare Intl

Thu 4/23

9:00 pm-8:00 pm

1 stop17h 00m

Donegal

Mon 4/27

8:30 pm-2:00 pm

1 stop23h 30m

$998

ChicagoDonegal

ORD - CFN

ORDCFN

Chicago O'Hare Intl

Thu 4/23

3:45 pm-7:35 am

1 stop9h 50m

Donegal

Mon 4/27

8:30 pm-12:20 pm

2 stops21h 50m

$999

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

ChicagoDonegal

ORD - CFN

ORDCFN

Chicago O'Hare Intl

Mon 3/23

6:01 pm-8:00 pm

3 stops20h 59m

Donegal

Sun 3/29

8:30 pm-9:40 am

3 stops43h 10m

$1,444

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 13 resultsSorted by cheapest first
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See travel insights to Donegal from

How to get the cheapest flight ticket from Chicago 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

What is the cheapest airline that flies from Chicago to Donegal?

Aer Lingus is the most popular carrier operating from Chicago to Donegal

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

15h 30m

Direct flights

None
The fastest flight from Chicago to Donegal takes 15h 30m
There are no direct flights from Chicago to Donegal. There are no popular flight routes from Chicago to Donegal.
Search flight deals

  • 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 15h 30m.

  • 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.

Traveling 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?

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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