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Cheap flights from Illinois to Donegal from €835

This is the cheapest return flight price found by a momondo user in the last 72 hours by searching for a flight from Illinois to Donegal departing on 1/9. 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

Find the cheapest flights from Illinois to Donegal

Cheap return flights

Enter your travel dates to find the best prices.
Aer Lingus Logo
21:00 - 14:00ORD  Chicago O'Hare Intl-CFN Donegal
11h 00m1 stop Dublin
Aer Lingus Logo
14:30 - 19:15CFN  Donegal-ORD Chicago O'Hare Intl
10h 45m1 stop Dublin
€835Aer Lingus
Tue, 1 Sep - Wed, 9 Sep
Aer Lingus Logo
21:00 - 14:00ORD  Chicago O'Hare Intl-CFN Donegal
11h 00m1 stop Dublin
Aer Lingus Logo
07:55 - 19:15CFN  Donegal-ORD Chicago O'Hare Intl
17h 20m1 stop Dublin
€846Aer Lingus
Mon, 28 Sep - Mon, 5 Oct
Aer Lingus Logo
06:40 - 14:00ORD  Chicago O'Hare Intl-CFN Donegal
25h 20m2 stops Cleveland Hopkins Intl Dublin
Aer Lingus Logo
07:55 - 14:00CFN  Donegal-ORD Chicago O'Hare Intl
12h 05m1 stop Dublin
€857Aer Lingus
Tue, 1 Sep - Wed, 9 Sep
Multiple Airlines Logo
21:00 - 14:00ORD  Chicago O'Hare Intl-CFN Donegal
11h 00m1 stop Dublin
Multiple Airlines Logo
14:30 - 19:15CFN  Donegal-ORD Chicago O'Hare Intl
10h 45m1 stop Dublin
€867Multiple Airlines
Wed, 2 Sep - Wed, 9 Sep
Multiple Airlines Logo
18:30 - 14:00ORD  Chicago O'Hare Intl-CFN Donegal
13h 30m2 stops New York John F Kennedy Intl Dublin
Multiple Airlines Logo
14:30 - 19:15CFN  Donegal-ORD Chicago O'Hare Intl
10h 45m1 stop Dublin
€874Multiple Airlines
Tue, 1 Sep - Tue, 8 Sep
British Airways Logo
18:50 - 20:00ORD  Chicago O'Hare Intl-CFN Donegal
19h 10m2 stops London Heathrow Dublin
British Airways Logo
08:00 - 18:45CFN  Donegal-ORD Chicago O'Hare Intl
16h 45m2 stops Dublin London Heathrow
€889British Airways
Sun, 6 Dec - Thu, 10 Dec
Aer Lingus Logo
15:45 - 14:00ORD  Chicago O'Hare Intl-CFN Donegal
16h 15m1 stop Dublin
Aer Lingus Logo
14:30 - 19:15CFN  Donegal-ORD Chicago O'Hare Intl
10h 45m1 stop Dublin
€891Aer Lingus
Tue, 1 Sep - Fri, 11 Sep
Multiple Airlines Logo
22:25 - 14:00ORD  Chicago O'Hare Intl-CFN Donegal
33h 35m2 stops London Heathrow Dublin
Multiple Airlines Logo
14:30 - 12:30CFN  Donegal-ORD Chicago O'Hare Intl
28h 00m2 stops Dublin London Heathrow
€898Multiple Airlines
Mon, 28 Sep - Mon, 5 Oct
Multiple Airlines Logo
15:45 - 14:00ORD  Chicago O'Hare Intl-CFN Donegal
16h 15m1 stop Dublin
Multiple Airlines Logo
14:30 - 19:15CFN  Donegal-ORD Chicago O'Hare Intl
10h 45m1 stop Dublin
€900Multiple Airlines
Mon, 31 Aug - Tue, 8 Sep
Multiple Airlines Logo
21:00 - 14:00ORD  Chicago O'Hare Intl-CFN Donegal
11h 00m1 stop Dublin
Multiple Airlines Logo
14:30 - 12:30CFN  Donegal-ORD Chicago O'Hare Intl
28h 00m2 stops Dublin London Heathrow
€904Multiple Airlines
Mon, 28 Sep - Mon, 5 Oct

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Aer Lingus flights from Illinois to Donegal

Our best Aer Lingus deals on Illinois to Donegal flight tickets
Aer Lingus
1 Sept
ORD21:00Chicago O'Hare Intl
11h 00m
1 stop
CFN14:00Donegal
9 Sept
CFN14:30Donegal
10h 45m
1 stop
ORD19:15Chicago O'Hare Intl
€835
Aer Lingus
28 Sept
ORD21:00Chicago O'Hare Intl
11h 00m
1 stop
CFN14:00Donegal
5 Oct
CFN07:55Donegal
17h 20m
1 stop
ORD19:15Chicago O'Hare Intl
€846
Aer Lingus
1 Sept
ORD06:40Chicago O'Hare Intl
25h 20m
2 stops
CFN14:00Donegal
9 Sept
CFN07:55Donegal
12h 05m
1 stop
ORD14:00Chicago O'Hare Intl
€857

British Airways flights from Illinois to Donegal

Our best British Airways deals on Illinois to Donegal flight tickets
British Airways
6 Dec
ORD18:50Chicago O'Hare Intl
19h 10m
2 stops
CFN20:00Donegal
10 Dec
CFN08:00Donegal
16h 45m
2 stops
ORD18:45Chicago O'Hare Intl
€889
British Airways
1 Sept
ORD19:05Chicago O'Hare Intl
36h 55m
2 stops
CFN14:00Donegal
9 Sept
CFN14:30Donegal
27h 55m
2 stops
ORD12:25Chicago O'Hare Intl
€1,118
British Airways
30 Aug
ORD22:30Chicago O'Hare Intl
33h 30m
2 stops
CFN14:00Donegal
7 Sept
CFN14:30Donegal
29h 20m
2 stops
ORD13:50Chicago O'Hare Intl
€1,135

momondo Fare Finder

 
Customise your flight search to find flights from Illinois 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 17 August 2026.
Use the filters below to find and compare flights from Illinois to Donegal that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight
Fastest return journey

ChicagoDonegal

ORD Chicago O'Hare Intl - CFN Donegal

ORDCFN

Chicago O'Hare Intl

Tue 1/9

21:00-14:00

1 stop11h 00m

Donegal

Wed 9/9

14:30-19:15

1 stop10h 45m

€835

ChicagoDonegal

ORD Chicago O'Hare Intl - CFN Donegal

ORDCFN

Chicago O'Hare Intl

Mon 28/9

21:00-14:00

1 stop11h 00m

Donegal

Mon 5/10

07:55-19:15

1 stop17h 20m

€846

ChicagoDonegal

ORD Chicago O'Hare Intl - CFN Donegal

ORDCFN

Chicago O'Hare Intl

Tue 1/9

06:40-14:00

2 stops25h 20m

Donegal

Wed 9/9

07:55-14:00

1 stop12h 05m

€857

ChicagoDonegal

ORD Chicago O'Hare Intl - CFN Donegal

ORDCFN

Chicago O'Hare Intl

Wed 2/9

21:00-14:00

1 stop11h 00m

Donegal

Wed 9/9

14:30-19:15

1 stop10h 45m

€867

ChicagoDonegal

ORD Chicago O'Hare Intl - CFN Donegal

ORDCFN

Chicago O'Hare Intl

Tue 1/9

18:30-14:00

2 stops13h 30m

Donegal

Tue 8/9

14:30-19:15

1 stop10h 45m

€874

ChicagoDonegal

ORD Chicago O'Hare Intl - CFN Donegal

ORDCFN

Chicago O'Hare Intl

Sun 6/12

18:50-20:00

2 stops19h 10m

Donegal

Thu 10/12

08:00-18:45

2 stops16h 45m

€889

ChicagoDonegal

ORD Chicago O'Hare Intl - CFN Donegal

ORDCFN

Chicago O'Hare Intl

Tue 1/9

15:45-14:00

1 stop16h 15m

Donegal

Fri 11/9

14:30-19:15

1 stop10h 45m

€891

ChicagoDonegal

ORD Chicago O'Hare Intl - CFN Donegal

ORDCFN

Chicago O'Hare Intl

Mon 28/9

22:25-14:00

2 stops33h 35m

Donegal

Mon 5/10

14:30-12:30

2 stops28h 00m

€898

ChicagoDonegal

ORD Chicago O'Hare Intl - CFN Donegal

ORDCFN

Chicago O'Hare Intl

Mon 31/8

15:45-14:00

1 stop16h 15m

Donegal

Tue 8/9

14:30-19:15

1 stop10h 45m

€900

ChicagoDonegal

ORD Chicago O'Hare Intl - CFN Donegal

ORDCFN

Chicago O'Hare Intl

Mon 28/9

21:00-14:00

1 stop11h 00m

Donegal

Mon 5/10

14:30-12:30

2 stops28h 00m

€904

Flights are sorted by cheapest return flights first.

Sorted by cheapest first

Cheap Illinois to Donegal flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Illinois to Donegal

Best price found

€835

Fastest flight time

19h 10m

Direct flights

None
The best flight deal from Illinois to Donegal found on momondo in the last 72 hours is €835
The fastest flight from Illinois to Donegal takes 19h 10m
There are no direct flights from Illinois to Donegal. There are no popular flight routes from Illinois to Donegal.
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Frequently asked questions about flying from Illinois to Donegal

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

    Prices for flights from Illinois to Donegal Airport were last updated today.

  • How old do you have to be to fly from Illinois to Donegal Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and stopovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Illinois to Donegal Airport.

  • What documentation or ID do you need to fly to Donegal Airport?

    The required travel and health documents for your Donegal Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's licence and a passport valid for six months after your intended arrival at Donegal Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Frequently asked questions about flying from Illinois to Donegal

  • How do I get Price Alerts for flights from Illinois to Donegal?

    Search flight deals from Illinois to Donegal. While viewing offers you’ll have the option to create a Price Alert.

  • How can I save money on flights from Illinois to Donegal with momondo?

    Leverage our AI within our “Price Forecast” tool, which predicts if it’s better to book now or wait until prices decrease. You can strategically pick the best days to fly and save money on your trip by using our “Price Calendar” tool. “Explore” shows an overview of how much it costs to fly to anywhere from a selected city or airport. Our “Discover” content is a great option for travel inspiration and money-saving tips, while “Price Alerts” will update you when prices change, so you can book when fares are right.

  • 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.

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 Illinois to Donegal?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Donegal from Illinois.

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

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

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

Once you have performed a search for Illinois 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 Illinois to Donegal right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Illinois to Donegal flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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