$311+ Cheap flights from Chicago (CHI) to Shannon (SNN)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/29. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — SNN
Oct 21 — Oct 281
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Find cheap flights from Chicago to Shannon with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Chicago to Shannon
Cheapest
Best
Last-minute
One-way
Cheapest flights from Chicago to ShannonExplore the most affordable flight options available from Chicago to Shannon. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 21, 2026.
Explore the most affordable flight options available from Chicago to Shannon. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 21, 2026.
This United Airlines deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/274:00 pm -
2 stops12h 15m
Tue 10/612:30 pm -
2 stops24h 55m
Deal found 9/17![United Airlines logo]()
$728
This United Airlines deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/269:00 am -
1 stop19h 15m
Mon 10/512:30 pm -
1 stop16h 51m
Deal found 9/19![United Airlines logo]()
$729
This United Airlines deal was found by Cheapflights users on 9/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/122:00 pm -
2 stops14h 15m
Mon 10/1912:30 pm -
2 stops25h 14m
Deal found 9/20![United Airlines logo]()
$730
This United Airlines deal was found by Cheapflights users on 9/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/275:07 pm -
1 stop11h 08m
Mon 10/512:30 pm -
1 stop16h 51m
Deal found 9/20![United Airlines logo]()
$738
This United Airlines deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/248:50 am -
2 stops19h 25m
Thu 10/112:30 pm -
1 stop16h 51m
Deal found 9/17![United Airlines logo]()
$742
This United Airlines deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/147:30 am -
2 stops20h 45m
Wed 10/2112:30 pm -
2 stops25h 25m
Deal found 9/16![United Airlines logo]()
$743
This Mytrip deal was found by Cheapflights users on 9/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/27:15 pm -
3 stops18h 10m
Mon 11/98:05 pm -
2 stops26h 40m
Deal found 9/18![Multiple Airlines logo]()
$750
This Mytrip deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/37:15 pm -
3 stops18h 10m
Tue 11/108:05 pm -
3 stops26h 40m
Deal found 9/19![Multiple Airlines logo]()
$758
This Mytrip deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/176:30 pm -
2 stops21h 00m
Wed 11/257:50 am -
2 stops15h 30m
Deal found 9/19![Multiple Airlines logo]()
$765
Best flights from Chicago to ShannonDiscover carefully curated flight deals from Chicago to Shannon that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 21, 2026.
Discover carefully curated flight deals from Chicago to Shannon that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 21, 2026.
This United Airlines deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/279:00 am -
1 stop19h 15m
Tue 10/612:30 pm -
1 stop15h 02m
Deal found 9/17![United Airlines logo]()
$728
This United Airlines deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/267:00 am -
2 stops21h 15m
Mon 10/512:30 pm -
1 stop15h 02m
Deal found 9/19![United Airlines logo]()
$729
This United Airlines deal was found by Cheapflights users on 9/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/122:00 pm -
2 stops14h 15m
Mon 10/1912:30 pm -
2 stops25h 14m
Deal found 9/20![United Airlines logo]()
$730
This United Airlines deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/175:07 pm -
1 stop11h 08m
Sat 10/2412:30 pm -
1 stop15h 02m
Deal found 9/17![United Airlines logo]()
$738
This United Airlines deal was found by Cheapflights users on 9/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/275:07 pm -
1 stop11h 08m
Mon 10/512:30 pm -
1 stop16h 51m
Deal found 9/20![United Airlines logo]()
$738
This United Airlines deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/2510:00 am -
2 stops18h 15m
Fri 10/212:30 pm -
1 stop16h 51m
Deal found 9/17![United Airlines logo]()
$742
This United Airlines deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/148:50 am -
2 stops19h 25m
Wed 10/2112:30 pm -
1 stop15h 02m
Deal found 9/16![United Airlines logo]()
$743
Last-minute flights from Chicago to ShannonDiscover last-minute flight deals from Chicago to Shannon. Data last updated September 21, 2026 and is based on user searches.
Discover last-minute flight deals from Chicago to Shannon. Data last updated September 21, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/248:00 am -
2 stops20h 15m
Thu 10/112:30 pm -
2 stops26h 39m
Deal found 9/17![United Airlines logo]()
$742
This United Airlines deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/256:00 pm -
1 stop10h 15m
Fri 10/212:30 pm -
1 stop16h 51m
Deal found 9/17![United Airlines logo]()
$853
This United Airlines deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/2612:55 pm -
2 stops15h 20m
Mon 10/512:30 pm -
2 stops17h 02m
Deal found 9/19![United Airlines logo]()
$729
This United Airlines deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/274:00 pm -
2 stops12h 15m
Tue 10/612:30 pm -
2 stops24h 55m
Deal found 9/17![United Airlines logo]()
$728
This United Airlines deal was found by Cheapflights users on 9/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/275:07 pm -
1 stop11h 08m
Mon 10/512:30 pm -
1 stop16h 51m
Deal found 9/20![United Airlines logo]()
$738
This United Airlines deal was found by Cheapflights users on 9/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/122:00 pm -
2 stops14h 15m
Mon 10/1912:30 pm -
2 stops25h 14m
Deal found 9/20![United Airlines logo]()
$730
This United Airlines deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/148:50 am -
2 stops19h 25m
Wed 10/2112:30 pm -
1 stop15h 02m
Deal found 9/16![United Airlines logo]()
$743
This Aer Lingus deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Aer Lingus is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/147:00 am -
1 stop16h 25m
Wed 10/217:30 am -
1 stop16h 45m
Deal found 9/16![Multiple Airlines logo]()
$905
This Mytrip deal was found by Cheapflights users on 9/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/203:45 pm -
2 stops13h 35m
Tue 10/277:50 am -
2 stops16h 30m
Deal found 9/20![Aer Lingus logo]()
$894
This Cheapflightsfares deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/209:00 pm -
2 stops13h 10m
Tue 11/38:05 pm -
2 stops28h 15m
Deal found 9/16![Aer Lingus logo]()
$901
This Gotogate deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/318:40 pm -
2 stops39h 05m
Sat 11/75:10 pm -
2 stops52h 28m
Deal found 9/16![Air Canada logo]()
$902
One-way flights from Chicago to ShannonSearch for one-way flight options from Chicago to Shannon. Find affordable one-way fares based on user searches. Data last updated September 21, 2026.
Search for one-way flight options from Chicago to Shannon. Find affordable one-way fares based on user searches. Data last updated September 21, 2026.
This Kiwi.com deal was found by Cheapflights users on 9/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/297:30 pm -
3 stops31h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/20![Multiple Airlines logo]()
$311
This Kiwi.com deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/3010:25 pm -
3 stops39h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/16![Multiple Airlines logo]()
$341
This Kiwi.com deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/1711:20 pm -
3 stops59h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/17![Multiple Airlines logo]()
$408
This Kiwi.com deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/303:20 pm -
3 stops47h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/16![Multiple Airlines logo]()
$413
This Cheapflightsfares deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/79:00 pm -
2 stops13h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/19![Aer Lingus logo]()
$439
This FlightHub deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/710:59 am -
1 stop13h 01m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/16![Multiple Airlines logo]()
$448
This Kiwi.com deal was found by Cheapflights users on 9/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/243:50 pm -
2 stops43h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/20![Multiple Airlines logo]()
$457
This FlightHub deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/108:04 pm -
1 stop27h 21m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/17![Multiple Airlines logo]()
$461
This KAYAK deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/178:00 pm -
1 stop27h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/17![Aer Lingus logo]()
$463
This Kiwi.com deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/268:42 pm -
3 stops39h 58m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/15![Multiple Airlines logo]()
$467
This Cheapflightsfares deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/83:45 pm -
2 stops18h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/16![Aer Lingus logo]()
$488
This FlightHub deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/210:59 am -
1 stop13h 01m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/17![Multiple Airlines logo]()
$498
Find flight deals from Chicago to Shannon
Discover tips and strategies to find the most affordable flight options for your journey from Chicago (CHI) to Shannon (SNN). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated September 21, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $729 (Mytrip) |
One-way from | $311 (Kiwi.com) |
Popular in | June |
Cheapest in | August |
Average price | $893 |
Good round-trip deal | $980 or less |
Good one-way deal | $542 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Chicago to Shannon 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, Cheapflights users made 7,457,451 searches. Data last updated September 21, 2026.
Use the filters below to find and compare flights from Chicago to Shannon that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
ChicagoShannon
ORD Chicago O'Hare Intl - SNN Shannon
ORDSNN
Chicago O'Hare Intl
Sat 10/17
11:20 pm-4:40 pm
3 stops59h 20m
Shannon
Wed 12/31
12:00 am-5:00 pm
Nonstop0h 00m
$408
ChicagoShannon
MDW Chicago Midway - SNN Shannon
MDWSNN
Chicago Midway
Wed 9/30
3:20 pm-8:50 pm
3 stops47h 30m
Shannon
Wed 12/31
12:00 am-5:00 pm
Nonstop0h 00m
$413
ChicagoShannon
ORD Chicago O'Hare Intl - SNN Shannon
ORDSNN
Chicago O'Hare Intl
Wed 10/7
9:00 pm-4:10 pm
2 stops13h 10m
Shannon
Wed 12/31
12:00 am-5:00 pm
Nonstop0h 00m
$440
ChicagoShannon
ORD Chicago O'Hare Intl - SNN Shannon
ORDSNN
Chicago O'Hare Intl
Wed 9/30
3:45 pm-4:10 pm
2 stops18h 25m
Shannon
Wed 12/31
12:00 am-5:00 pm
Nonstop0h 00m
$440
Quickest round-trip
ChicagoShannon
ORD Chicago O'Hare Intl - SNN Shannon
ORDSNN
Chicago O'Hare Intl
Wed 10/7
10:59 am-6:00 am
1 stop13h 01m
Shannon
Wed 12/31
12:00 am-5:00 pm
Nonstop0h 00m
$448
ChicagoShannon
ORD Chicago O'Hare Intl - SNN Shannon
ORDSNN
Chicago O'Hare Intl
Thu 9/24
3:50 pm-5:20 pm
2 stops43h 30m
Shannon
Wed 12/31
12:00 am-5:00 pm
Nonstop0h 00m
$457
ChicagoShannon
ORD Chicago O'Hare Intl - SNN Shannon
ORDSNN
Chicago O'Hare Intl
Sat 10/17
8:00 pm-5:25 am
1 stop27h 25m
Shannon
Wed 12/31
12:00 am-5:00 pm
Nonstop0h 00m
$463
ChicagoShannon
MDW Chicago Midway - SNN Shannon
MDWSNN
Chicago Midway
Thu 11/26
8:42 pm-6:40 pm
3 stops39h 58m
Shannon
Wed 12/31
12:00 am-5:00 pm
Nonstop0h 00m
$467
ChicagoShannon
ORD Chicago O'Hare Intl - SNN Shannon
ORDSNN
Chicago O'Hare Intl
Sat 10/10
9:00 pm-8:35 pm
2 stops17h 35m
Shannon
Wed 12/31
12:00 am-5:00 pm
Nonstop0h 00m
$488
ChicagoShannon
ORD Chicago O'Hare Intl - SNN Shannon
ORDSNN
Chicago O'Hare Intl
Sun 9/27
9:00 am-10:15 am
1 stop19h 15m
Shannon
Tue 10/6
12:30 pm-9:32 pm
1 stop15h 02m
$728
Showing 1-10 of 16 resultsSorted by cheapest first
Compare providers for flights from Chicago to Shannon
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Chicago to Shannon in September.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Chicago-Shannon, Clare flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Chicago-Shannon, Clare flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Chicago-Shannon, Clare flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Chicago-Shannon, Clare flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Chicago-Shannon, Clare flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Chicago to Shannon
Have a flexible travel schedule? Discover the best time to fly to Shannon from Chicago with our price prediction graph.
CHI-SNN
ORD-SNN
MDW-SNN
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Chicago to Shannon
CHI-SNN
ORD-SNN
MDW-SNN
What is the cheapest month to book a flight from Chicago to Shannon, Clare?
Currently, April is the cheapest month in which you can book a flight from Chicago to Shannon, Clare (average of $600). Flying from Chicago to Shannon, Clare in June is currently the most expensive (average of $1,106). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
What is the cheapest time of day to fly from CHI to SNN?
Find hourly flight availability from Chicago to Shannon. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 21, 2026.
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Chicago to Shannon, Clare as you normally would.
How much does it cost to fly round-trip from Chicago to Shannon, Clare?
Airfare is typical for this route at the moment.
Chicago to Shannon, Clare flights typically cost between $696 and $1,138 in November.The cheapest round-trip price found within the last 5 days was $729 on Multiple Airlines (Nov 3-Nov 10).
How often are flights from Chicago to Shannon delayed?
About 36% of weekly flights between Chicago and Shannon have experienced delays in the past year, with the average delay time being 172 minutes.
What is the most punctual flight time for Chicago to Shannon flights?
Historically, flights departing in the evening are less likely to be delayed, whereas flights leaving at night tend to experience delays more often.
What day of the week experiences the fewest flight delays on this route?
Monday tends to have the lowest number of delays on this route, whereas Sunday has historically faced a higher average of delays compared to other days of the week.
Which airline has the best punctuality record on Chicago to Shannon flights?
Over the last year, United Airlines have had the lowest number of delays on this route, with just 36% of flights being delayed.
How far ahead should I book a flight from Chicago to Shannon, Clare?
Booking 5 days in advance of your planned departure date is, on average, the best time to get cheap flights from Chicago to Shannon, Clare. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
Reviews of airlines servicing Shannon
Get insights into the airlines that provide service to Shannon. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Shannon. Reviews last updated September 21, 2026.
Get a feel of what it's like to fly with United Airlines,American Airlines, andLufthansa from Chicago to Shannon by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Comfort
7.3
Food
6.7
Boarding
7.7
Entertainment
7.1
Crew
8.1
Overall
7.4
Reviews
1 / 20
2.0
MediocreDawn,Aug 2026
ORD - DEN
Comfort
7.3
Food
6.7
Boarding
7.7
Entertainment
7.1
Crew
8.1
Overall
7.4
Reviews
1 / 20
2.0
MediocreDawn,Aug 2026
ORD - DEN
Comfort
7.3
Food
6.7
Boarding
7.7
Entertainment
7.1
Crew
8.1
Overall
7.4
Reviews
1 / 20
2.0
MediocreDawn,Aug 2026
ORD - DEN
Comfort
7.3
Food
6.7
Boarding
7.7
Entertainment
7.1
Crew
8.1
Overall
7.4
Reviews
1 / 20
2.0
MediocreDawn,Aug 2026
ORD - DEN
Related info for your journey
Find useful and relevant information for your journey from Chicago to Shannon. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes
Complete your trip
Flights by cabin class
Other flight options
Other flights from Chicago
Popular flights
Shannon flight routes
Alternative routes for Chicago to Shannon
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Shannon by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Chicago to Shannon by cabin class
Find flights from Chicago to Shannon, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Chicago and Shannon flights
Browse other Chicago and Shannon flight options. Last updated on September 21, 2026.
Other flights from Chicago
Browse through other flights departing from Chicago. Flights are based on user searches made on Cheapflights and were last updated on September 21, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Other flights to Shannon
Explore flights to Shannon departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on September 21, 2026.
Top 3 airlines flying from Chicago to Shannon
Discover the top 3 airlines that operate flights from Chicago to Shannon. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated September 21, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$469 | Average$683 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$543 | Average$853 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$742 | Average$1,009 | FlexibilityNo cancel fee | On-time76% |