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Cheap flights from Chicago to Donegal from $1,530

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 11/2. 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.
British Airways Logo
9:45 pm - 8:00 pm
ORD
-
CFN
16h 15m
2 stops
British Airways Logo
8:00 am - 6:45 pm
CFN
-
ORD
16h 45m
2 stops
$1,530British Airways
Mon, Nov 2 - Fri, Nov 6

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Aer Lingus flights from Chicago to Donegal

Our best Aer Lingus deals on Chicago to Donegal flight tickets
Aer Lingus
Jun 25
ORD11:00 pmChicago O'Hare Intl
33h 00m
2 stops
CFN2:00 pmDonegal
Jun 28
CFN2:30 pmDonegal
47h 50m
2 stops
ORD8:20 amChicago O'Hare Intl
$1,679
Aer Lingus
Jun 25
ORD9:00 pmChicago O'Hare Intl
11h 00m
1 stop
CFN2:00 pmDonegal
Jun 28
CFN2:30 pmDonegal
47h 50m
2 stops
ORD8:20 amChicago O'Hare Intl
$1,749
Aer Lingus
Jun 25
ORD9:00 pmChicago O'Hare Intl
11h 00m
1 stop
CFN2:00 pmDonegal
Jun 28
CFN7:55 amDonegal
12h 05m
1 stop
ORD2:00 pmChicago O'Hare Intl
$1,971

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 June 17, 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

Mon 11/2

9:45 pm-8:00 pm

2 stops16h 15m

Donegal

Fri 11/6

8:00 am-6:45 pm

2 stops16h 45m

$1,530

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

16h 10m

Direct flights

None
The fastest flight from Chicago to Donegal takes 16h 10m
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 16h 10m.

  • 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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