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Cheap flights from Chicago O'Hare Intl Airport to Donegal from €396

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 O'Hare Intl Airport to Donegal departing on 8/8. 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 O'Hare Intl Airport to Donegal

Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
ORD
-
CFN
9172 kmmulti-stop
Multiple Airlines Logo
CFN
-
ORD
9172 kmmulti-stop
Multiple Airlines

momondo Fare Finder

 
Customise your flight search to find flights from Chicago O'Hare Intl Airport 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 3 April 2026.
Use the filters below to find and compare flights from Chicago O'Hare Intl Airport to Donegal that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest one-way

ChicagoDonegal

ORD - CFN

ORDCFN

Chicago O'Hare Intl

Sat 8/8

18:05-07:35

3 stops31h 30m

€396
Fastest single journey

ChicagoDonegal

ORD - CFN

ORDCFN

Chicago O'Hare Intl

Sat 8/8

15:45-07:35

1 stop9h 50m

€405

ChicagoDonegal

ORD - CFN

ORDCFN

Chicago O'Hare Intl

Mon 31/8

22:25-20:00

3 stops15h 35m

€410

ChicagoDonegal

ORD - CFN

ORDCFN

Chicago O'Hare Intl

Mon 31/8

15:45-07:35

1 stop9h 50m

€419

ChicagoDonegal

ORD - CFN

ORDCFN

Chicago O'Hare Intl

Sat 8/8

21:07-20:00

2 stops40h 53m

€473

ChicagoDonegal

ORD - CFN

ORDCFN

Chicago O'Hare Intl

Mon 31/8

22:25-15:15

2 stops34h 50m

€486

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 O'Hare Intl Airport 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 O'Hare Intl to Donegal?

Aer Lingus is the most popular carrier operating from Chicago O'Hare Intl to Donegal

When to book flights from Chicago O'Hare Intl Airport to Donegal

Are you open to changing your travel dates? Check out the ideal times to fly from Chicago O'Hare Intl Airport to Donegal according to our flight data. Find out which month and days have the cheapest flights.
Estimated return price

Cheap Chicago O'Hare Intl Airport to Donegal (ORD to CFN) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Chicago O'Hare Intl Airport to Donegal

Fastest flight time

20h 50m

Direct flights

None
The fastest flight from Chicago O'Hare Intl Airport to Donegal takes 20h 50m
There are no direct flights from Chicago O'Hare Intl Airport to Donegal. There are no popular flight routes from Chicago O'Hare Intl Airport to Donegal.
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Frequently asked questions about flying from Chicago O'Hare Intl Airport to Donegal

  • How far is Chicago O'Hare Intl to Donegal by plane?

    The distance between Chicago O'Hare Intl and Donegal is about 5728.5 km. Typically, this will take 20h 50m by plane in normal conditions.

  • When did momondo last update prices for flights from Chicago O'Hare Intl Airport to Donegal Airport?

    Prices for flights from Chicago O'Hare Intl Airport to Donegal Airport were last updated today.

  • How old do you have to be to fly from Chicago O'Hare Intl Airport to Donegal Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Chicago O'Hare Intl Airport 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?

Finding the right flight to Donegal from Chicago is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Donegal quick and easy, saving you time and money.

Can I find flights from Chicago to Donegal with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Chicago to Donegal flights to just show those with flexible booking policies.

How can momondo help me find flights from Chicago to Donegal?

Once you have performed a search for Chicago to Donegal flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

If you are not ready to book a flight from Chicago to Donegal now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Donegal and let you know when they change.

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