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Cheap flights from Illinois to Shannon from €239

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Illinois to Shannon departing on 3/12. 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 Illinois to Shannon

Cheap return flights

American Airlines Logo
22:35 - 16:10ORD-SNN
11h 35m1 stop
American Airlines Logo
21:15 - 14:50SNN-ORD
23h 35m1 stop
€522American Airlines
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Sun, 14 Sep - Mon, 22 Sep
United Airlines Logo
09:17 - 07:30STL-SNN
16h 13m1 stop
United Airlines Logo
09:30 - 18:23SNN-STL
14h 53m1 stop
€548United Airlines
Find Deal
Mon, 1 Sep - Thu, 11 Sep
Logo
14:00 - 20:35ORD-SNN
24h 35m2 stops
Logo
21:15 - 15:55SNN-ORD
24h 40m2 stops
€577
Find Deal
Tue, 14 Oct - Wed, 22 Oct
Delta Logo
06:40 - 11:10STL-SNN
22h 30m2 stops
Delta Logo
13:05 - 08:14SNN-STL
25h 09m2 stops
€578Delta
Find Deal
Mon, 1 Sep - Thu, 11 Sep
Logo
08:40 - 11:20ORD-SNN
20h 40m2 stops
Logo
21:15 - 15:55SNN-ORD
24h 40m2 stops
€593
Find Deal
Sun, 14 Sep - Mon, 22 Sep
Delta Logo
06:40 - 11:10STL-SNN
22h 30m2 stops
Delta Logo
13:05 - 09:15SNN-STL
26h 10m2 stops
€629Delta
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Mon, 1 Sep - Mon, 8 Sep
Air Canada Logo
15:35 - 16:10ORD-SNN
18h 35m2 stops
Air Canada Logo
07:40 - 20:22SNN-ORD
18h 42m2 stops
€694Air Canada
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Wed, 15 Oct - Wed, 22 Oct
Air Canada Logo
13:30 - 11:20STL-SNN
15h 50m2 stops
Air Canada Logo
07:40 - 19:57SNN-STL
18h 17m2 stops
€717Air Canada
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Sun, 14 Sep - Tue, 23 Sep
British Airways Logo
15:56 - 20:35STL-SNN
22h 39m2 stops
British Airways Logo
21:15 - 23:48SNN-STL
32h 33m2 stops
€774British Airways
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Sun, 14 Sep - Wed, 24 Sep
British Airways Logo
15:56 - 16:10STL-SNN
18h 14m2 stops
British Airways Logo
07:40 - 20:25SNN-STL
18h 45m2 stops
€801British Airways
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Sun, 14 Sep - Sun, 21 Sep

American Airlines flights from Illinois to Shannon, Clare

Our best American Airlines deals on Illinois to Shannon, Clare flight tickets
American Airlines
14 Sept
ORD22:35Chicago O'Hare Intl
11h 35m
1 stop
SNN16:10Shannon
22 Sept
SNN21:15Shannon
23h 35m
1 stop
ORD14:50Chicago O'Hare Intl
€522
Find similar
American Airlines
29 Sept
ORD16:55Chicago O'Hare Intl
17h 15m
1 stop
SNN16:10Shannon
6 Oct
SNN21:15Shannon
25h 45m
1 stop
ORD17:00Chicago O'Hare Intl
€586
Find similar
American Airlines
30 Sept
ORD20:40Chicago O'Hare Intl
17h 55m
1 stop
SNN20:35Shannon
7 Oct
SNN07:40Shannon
15h 20m
1 stop
ORD17:00Chicago O'Hare Intl
€587
Find similar

Air Canada flights from Illinois to Shannon, Clare

Our best Air Canada deals on Illinois to Shannon, Clare flight tickets
Air Canada
15 Oct
ORD15:35Chicago O'Hare Intl
18h 35m
2 stops
SNN16:10Shannon
22 Oct
SNN07:40Shannon
18h 42m
2 stops
ORD20:22Chicago O'Hare Intl
€694
Find similar
Air Canada
14 Sept
STL13:30Lambert-St Louis
15h 50m
2 stops
SNN11:20Shannon
23 Sept
SNN07:40Shannon
18h 17m
2 stops
STL19:57Lambert-St Louis
€717
Find similar
Air Canada
3 Sept
STL16:05Lambert-St Louis
18h 05m
2 stops
SNN16:10Shannon
8 Sept
SNN21:15Shannon
28h 42m
2 stops
STL19:57Lambert-St Louis
€844
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momondo Fare Finder

 
Customise your flight search to find flights from Illinois to Shannon, Clare 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 16 August 2025.
Use the filters below to find and compare flights from Illinois to Shannon, Clare that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

ChicagoShannon

ORD - SNN

ORDSNN

Chicago O'Hare Intl

Sun 14/9

22:35-16:10

1 stop11h 35m

Shannon

Mon 22/9

21:15-14:50

1 stop23h 35m

€522

St. LouisShannon

STL - SNN

STLSNN

Lambert-St Louis

Mon 1/9

09:17-07:30

1 stop16h 13m

Shannon

Thu 11/9

09:30-18:23

1 stop14h 53m

€548

ChicagoShannon

ORD - SNN

ORDSNN

Chicago O'Hare Intl

Tue 14/10

14:00-20:35

2 stops24h 35m

Shannon

Wed 22/10

21:15-15:55

2 stops24h 40m

€577

St. LouisShannon

STL - SNN

STLSNN

Lambert-St Louis

Mon 1/9

06:40-11:10

2 stops22h 30m

Shannon

Thu 11/9

13:05-08:14

2 stops25h 09m

€578

ChicagoShannon

ORD - SNN

ORDSNN

Chicago O'Hare Intl

Sun 14/9

08:40-11:20

2 stops20h 40m

Shannon

Mon 22/9

21:15-15:55

2 stops24h 40m

€593

St. LouisShannon

STL - SNN

STLSNN

Lambert-St Louis

Mon 1/9

06:40-11:10

2 stops22h 30m

Shannon

Mon 8/9

13:05-09:15

2 stops26h 10m

€629

ChicagoShannon

ORD - SNN

ORDSNN

Chicago O'Hare Intl

Wed 15/10

15:35-16:10

2 stops18h 35m

Shannon

Wed 22/10

07:40-20:22

2 stops18h 42m

€694

St. LouisShannon

STL - SNN

STLSNN

Lambert-St Louis

Sun 14/9

13:30-11:20

2 stops15h 50m

Shannon

Tue 23/9

07:40-19:57

2 stops18h 17m

€717

St. LouisShannon

STL - SNN

STLSNN

Lambert-St Louis

Sun 14/9

15:56-20:35

2 stops22h 39m

Shannon

Wed 24/9

21:15-23:48

2 stops32h 33m

€774

St. LouisShannon

STL - SNN

STLSNN

Lambert-St Louis

Sun 14/9

15:56-16:10

2 stops18h 14m

Shannon

Sun 21/9

07:40-20:25

2 stops18h 45m

€801

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Shannon from

How to get the cheapest flight ticket from Illinois to Shannon, Clare

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 month to fly to Shannon, Clare?

The month of September is another great option to travel to Shannon, Clare, with average flight prices from Illinois averaging around €511.

What is the cheapest Illinois to Shannon flight route?

Fly from Chicago O'Hare Intl to Shannon for the best Illinois - Shannon flight prices

How far in advance should I book a flight to Shannon, Clare?

You are more likely to see cheaper flights to Shannon, Clare from Illinois when booking weeks ahead of your departure date. In general, you can expect to find flights to Shannon, Clare for around €656 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Shannon, Clare from Illinois for as low as €567 on momondo.

What cabin class options are available on Illinois to Shannon flights?

There are 1 cabin classes available to choose from on Illinois to Shannon flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Cheap Illinois to Shannon, Clare flight deals and tips

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

Best price found

€239

Fastest flight time

7h 25m

Direct flights

Every day

Airports in Shannon, Clare

1 airport
The best one-way flight to Shannon, Clare from Illinois in the past 72 hours is €239. The best return flight deal from Illinois to Shannon, Clare found on momondo in the last 72 hours is €522.
The fastest flight from Illinois to Shannon, Clare takes 7h 25m
Direct flights go from Illinois to Shannon, Clare every day.
There is 1 airport near Shannon, Clare: Shannon (SNN)
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  • When did momondo last update prices for flights from Illinois to Shannon Airport?

    Prices for flights from Illinois to Shannon Airport are refreshed on a daily basis.

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

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and stopovers. It is recommended that you verify with the airline you are booking with for travel from Illinois to Shannon Airport.

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

    The necessary travel and health documents for your Shannon 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 licence 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.

  • What is the most popular plane model from Illinois to Shannon, Clare?

Travelling to a place near Shannon?

Book flights to Shannon if you plan to visit one of these locations
Limerick
Ennis
Tipperary
Nenagh
Killaloe
Adare
Lahinch

Why use momondo?

Why should I use momondo to find a flight deal from Illinois to Shannon?

Finding the right flight to Shannon from Illinois 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 Shannon quick and easy, saving you time and money.

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

Yes. momondo enables you to select and highlight flights to Shannon from Illinois with this policy.

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

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

Price alerts on flights to Shannon from Illinois 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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