€333 Find Cheap Flights from Shannon to Illinois – Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Shannon to Illinois departing on 3/9. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Cheap Flights from Shannon to Illinois

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Shannon to Illinois that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from Shannon to Illinois

Sun, 13 Sep - Sat, 19 Sep
KLM Logo
13:05 - 21:37
SNN
-
ORD
14h 32m
1 stop
KLM Logo
06:00 - 11:10
ORD
-
SNN
23h 10m
1 stop
€467KLM
Thu, 24 Dec - Sat, 2 Jan
Multiple Airlines Logo
07:50 - 13:45
SNN
-
ORD
11h 55m
1 stop
Multiple Airlines Logo
17:10 - 11:30
ORD
-
SNN
12h 20m
1 stop
€469Multiple Airlines
Sun, 13 Sep - Sat, 19 Sep
KLM Logo
13:05 - 21:37
SNN
-
ORD
14h 32m
1 stop
KLM Logo
10:25 - 11:10
ORD
-
SNN
18h 45m
1 stop
€479KLM
Sun, 13 Sep - Sat, 19 Sep
Delta Logo
13:05 - 21:37
SNN
-
ORD
14h 32m
1 stop
Delta Logo
13:29 - 11:10
ORD
-
SNN
15h 41m
1 stop
€480Delta
Fri, 4 Sep - Tue, 8 Sep
KLM Logo
13:05 - 21:52
SNN
-
ORD
14h 47m
1 stop
KLM Logo
13:29 - 11:10
ORD
-
SNN
15h 41m
1 stop
€480KLM
Sun, 13 Sep - Sat, 19 Sep
Delta Logo
13:05 - 21:37
SNN
-
ORD
14h 32m
1 stop
Delta Logo
13:29 - 11:10
ORD
-
SNN
15h 41m
1 stop
€493Delta
Thu, 3 Sep - Fri, 11 Sep
KLM Logo
13:05 - 21:52
SNN
-
ORD
14h 47m
1 stop
KLM Logo
10:25 - 11:10
ORD
-
SNN
18h 45m
1 stop
€495KLM
Sun, 13 Sep - Sat, 19 Sep
KLM Logo
13:05 - 21:37
SNN
-
ORD
14h 32m
1 stop
KLM Logo
10:44 - 11:10
ORD
-
SNN
18h 26m
2 stops
€577KLM
Thu, 27 Aug - Mon, 31 Aug
United Airlines Logo
09:30 - 11:50
SNN
-
ORD
8h 20mdirect
United Airlines Logo
08:40 - 10:15
ORD
-
SNN
19h 35m
1 stop
€677United Airlines
Sun, 13 Sep - Sat, 19 Sep
United Airlines Logo
09:30 - 11:50
SNN
-
ORD
8h 20mdirect
United Airlines Logo
10:25 - 10:15
ORD
-
SNN
17h 50m
1 stop
€678United Airlines
Booking Insights

KAYAK's insights & trends for Shannon to Illinois flights

Get data-powered insights and trends into flights from Shannon to Illinois to help you find the cheapest flights, the best time to fly, and much more.

What is the cheapest Shannon to Illinois flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest ticket to Illinois from Shannon found in the last 5 days was to Chicago, at €803 return. The most popular route is from Shannon (SNN) to Chicago O'Hare Intl Airport (ORD), and the cheapest return airline ticket found on this route in the last 5 days was €803.

What is the cheapest time of day to fly to Illinois?

The average price for all round-trip flights from Shannon to Illinois depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.

The cheapest time of day to fly to Illinois is generally in the morning, when retur flights cost €820 on average. The most expensive time of day to fly to Illinois is generally in the morning, which is peak travel time and where the average cost of a ticket is €820.

Can I save money by flying with a stopover from Shannon to Illinois?

The average return price for all direct flights, flights with one stopover, and flights with two stopovers for the route found by users searching on KAYAK in the last 2 weeks.

Yes, flying with a stopover may cost you more time, but you can also save money on the route, with a 1 stop stopover the cheapest option at €749 on average.

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Good to know

Cheapest flight

€333
Flight from Shannon to Chicago O'Hare Airport

FAQs - booking Illinois flights

  • How does KAYAK find such low prices on flights from Shannon to Illinois?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Shannon to Illinois.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Shannon to Illinois?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Shannon to Illinois is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Shannon to Illinois?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly from Shannon to Illinois with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Shannon to Illinois?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Shannon to Illinois up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from Shannon to Illinois

 
See real verified KAYAK customer reviews for airlines flying from Shannon to Illinois. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Shannon to Illinois? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 10058 reviews
6.7Food
7.1Entertainment
7.7Boarding
8.1Crew
7.3Comfort
Airline reviews

The flight crew were very helpful. The seats were very close together. There was barely room to sit without touching the person next to you.

4.0 OkayN, Jul 2026
PHL - ORD
Read more United Airlines reviews

The flight crew were very helpful. The seats were very close together. There was barely room to sit without touching the person next to you.

I’m an EP on AA every year for more than a decade but this was a very pleasant and surprising experience. Clean and sizable plane for HOU to CHI. 5 row first class. And excellent food in first class the steak option was really good. Your flight attendants even better. Seat 5A

Gluten free snack options and meals that offer both gluten free and dairy free.

Not a bad flight but a long delay boarding and taking off due to the pilot not arriving on time.

I would have preferred a flight voucher and to hop on a different flight. Delayed over 6 hours.

I almost missed my connection in Chicago due to having to wait on a gate to be open I am assuming. Having to run from E terminal to C terminal and I barely made it there before they closed the door. This may not be the actual airline's fault it's crazy how there is so little time between flight especially when they are placed so far apart in the airport.

The Wi-Fi did not work, so you weren't able to watch entertainment on your own device. They did not have wired headphones so you couldn't watch it on the in-seat entertainment screen either. There was plenty of time to do a drink and snag service but the flight attendants chose not to.

Great experience, boarding was fast and efficient, so much so that we arrived to Chicago very early

The flight did not have its customary snacks during the flight. Apparently they were never loaded on the plane.

The flight was canceled the day of the flight. United says it was FAA issue, with some 35 flights canceled and more delayed.

Everything you need to know for your flight from Shannon to Illinois

Information on your arrival and departure airports

Shannon (SNN)