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Cheap flights from Chicago to Donegal from €269

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 15/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Cheap return flights

British Airways Logo
17:10 - 14:00ORD-CFN
14h 50m2 stops
British Airways Logo
10:00 - 13:50CFN-ORD
33h 50m2 stops
€873British Airways
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Wed, 3 Dec - Sun, 7 Dec

momondo Fare Finder

 
Customise 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 13,528 searches. Data last updated 18 August 2025.
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

ChicagoDonegal

ORD - CFN

ORDCFN

Chicago O'Hare Intl

Wed 3/12

17:10-14:00

2 stops14h 50m

Donegal

Sun 7/12

10:00-13:50

2 stops33h 50m

€873

ChicagoDonegal

ORD - CFN

ORDCFN

Chicago O'Hare Intl

Mon 15/9

11:13-14:00

3 stops20h 47m

€269

ChicagoDonegal

ORD - CFN

ORDCFN

Chicago O'Hare Intl

Mon 15/9

18:10-14:00

2 stops37h 50m

€355

ChicagoDonegal

ORD - CFN

ORDCFN

Chicago O'Hare Intl

Mon 15/9

21:15-14:00

1 stop10h 45m

€483

Flights are sorted by cheapest return flights first.

Sorted by cheapest first

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 return 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

Best price found

€269

Fastest flight time

10h 45m

Direct flights

None

Airports in Donegal

1 airport
The best one-way flight to Donegal from Chicago in the past 72 hours is €269. The best return flight deal from Chicago to Donegal found on momondo in the last 72 hours is €873.
The fastest flight from Chicago to Donegal takes 10h 45m
There are no direct flights from Chicago to Donegal. Popular non-direct route for this connection is Chicago O'Hare Intl Airport - Donegal Airport.
There is 1 airport near Donegal: Donegal (CFN)
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  • How far is Chicago to Donegal by plane?

    There are 5719.8 km between Chicago and Donegal. By plane, this route typically takes 14h 50m.

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

    Prices for flights from Chicago to Donegal Airport are refreshed on a daily basis.

  • 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 stopovers. 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 travel and health documents required for your trip to Donegal Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s licence, and a passport valid for six-months after you plan to arrive at Donegal Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Travelling 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?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Chicago to Donegal . Millions of users trust and use momondo every year so you are in good hands.

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 provides multiple filters to help you find the best flight to Donegal from Chicago. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Price alerts on flights to Donegal from Chicago are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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