CHI - SNN

$400 Find Cheap Flights from Chicago to Shannon

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Chicago to Shannon departing on 4/6. 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

KAYAK searches hundreds of travel sites at once for deals on flights to Shannon

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Chicago to Shannon, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Chicago to Shannon, as well as popular online travel agencies
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41.299.237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest round-trip
$470
Overall average: $870
American Airlines
Mon 4/27Wed 5/6
ORD - SNN • 1 stop
Cheapest non-stop
$605
United Airlines
Sun 5/31Thu 6/11
ORD - SNN • Non-stop
Top routes
ORD-SNN
Cheapest
ORD-SNN
Most popular
Insights
Insights
Insights
Insights
When to book
3 weeks
in advance
Our data shows that travelers who book at least 3 weeks in advance save around 40% compared to booking last minute.
Insights
Insights
Insights
Insights
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We hope you love your trip to Shannon!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Chicago to Shannon (CHI-SNN)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Chicago to Shannon 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 round-trip flight deals from Chicago to Shannon

Mon, Apr 27 - Wed, May 6
American Airlines Logo
10:35 pm - 8:35 pm
ORD
-
SNN
16h 00m1 stop
American Airlines Logo
9:15 pm - 3:55 pm
SNN
-
ORD
24h 40m1 stop
$470American Airlines
Tue, Jan 13 - Tue, Feb 10
American Airlines Logo
8:45 pm - 4:45 pm
ORD
-
SNN
14h 00m1 stop
American Airlines Logo
7:50 am - 8:04 pm
SNN
-
ORD
18h 14m2 stops
$476American Airlines
Tue, Mar 17 - Tue, Mar 24
American Airlines Logo
6:10 pm - 11:30 am
ORD
-
SNN
12h 20m1 stop
American Airlines Logo
7:50 am - 9:16 pm
SNN
-
ORD
18h 26m2 stops
$480American Airlines
Mon, Apr 27 - Wed, May 6
United Airlines Logo
12:59 pm - 10:15 am
ORD
-
SNN
15h 16m2 stops
United Airlines Logo
12:30 pm - 8:17 pm
SNN
-
ORD
13h 47m1 stop
$493United Airlines
Fri, Jan 30 - Fri, Feb 6
American Airlines Logo
6:45 pm - 3:45 pm
ORD
-
SNN
15h 00m1 stop
American Airlines Logo
7:50 am - 1:50 pm
SNN
-
ORD
12h 00m1 stop
$520American Airlines
Mon, Jan 12 - Mon, Jan 19
American Airlines Logo
9:45 pm - 4:45 pm
ORD
-
SNN
13h 00m1 stop
American Airlines Logo
7:50 am - 3:25 pm
SNN
-
ORD
13h 35m1 stop
$522American Airlines
Mon, Jun 1 - Wed, Jun 10
Multiple Airlines Logo
1:05 pm - 11:10 am
MDW
-
SNN
16h 05m2 stops
Multiple Airlines Logo
1:05 pm - 4:25 pm
SNN
-
MDW
33h 20m2 stops
$1,124Multiple Airlines
Sun, May 24 - Wed, Jul 8
Multiple Airlines Logo
1:00 pm - 11:10 am
MDW
-
SNN
16h 10m2 stops
Multiple Airlines Logo
1:05 pm - 4:27 pm
SNN
-
MDW
33h 22m2 stops
$1,157Multiple Airlines
Sat, May 30 - Mon, Jun 8
Delta Logo
1:00 pm - 11:10 am
MDW
-
SNN
16h 10m2 stops
Delta Logo
1:05 pm - 9:45 pm
SNN
-
MDW
14h 40m2 stops
$1,925Delta
Mon, Jun 1 - Mon, Jun 8
Delta Logo
10:35 am - 11:10 am
MDW
-
SNN
18h 35m2 stops
Delta Logo
1:05 pm - 9:45 pm
SNN
-
MDW
14h 40m2 stops
$2,053Delta
Booking Insights

KAYAK's insights & trends for Chicago to Shannon flights

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

What is the cheapest Chicago to Shannon flight route?

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

The cheapest return flight from Chicago to Shannon costs $473 on the route between Chicago O'Hare Intl Airport (ORD) and Shannon (SNN). It is also the most popular route.

What’s the cheapest day of the week to fly from Chicago to Shannon?

The average price of all round-trip flights from Chicago to Shannon clicked on KAYAK for each day over the last 12 months.

If you are looking for a flight deal from Chicago to Shannon, look for departures on Mondays and avoid leaving on a Friday, as it's usually the priciest day. When flying back from Shannon, Monday is the cheapest day to fly and Saturday is the most expensive.

Can I save money by flying with a layover from Chicago to Shannon?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

Yes, flying with a layover may cost you more time, but you can also save money on the route, with a 1 stop layover the cheapest option at $689 on average.

How far in advance should I book a flight from Chicago to Shannon?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Chicago to Shannon, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Chicago to Shannon, you should book around 3 weeks before departure, which saves you about 40% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 8 weeks before departure.

Good to know

Low seasonFebruary
Cheapest flight$400
Best time to beat the crowds with an average 25% drop in price.
Most popular time to fly with an average 3% increase in price.
Flight from Chicago O'Hare Airport to Shannon

When to book flights from Chicago to Shannon

Are your dates flexible? Find out the best times to travel from Chicago to Shannon based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Chicago to Shannon

  • What is the cheapest flight from Chicago to Shannon?

    In the last 3 days, the lowest price for a flight from Chicago to Shannon was $470 for a round-trip ticket.

  • Do I need a passport to fly between Chicago and Shannon?

    Yes, you’ll need a passport to travel to Shannon from Chicago.

  • Which airports will I be using when flying from Chicago to Shannon?

    When flying out of Chicago you will be using one of these airports: Chicago Midway or Chicago O'Hare Intl. You will be landing at Shannon.

  • Which airlines offer Wi-Fi service onboard planes from Chicago to Shannon?

    Finnair, and American Airlines offer inflight Wi-Fi service on the Chicago to Shannon flight route.

  • Which aircraft models fly most regularly from Chicago to Shannon?

    The Boeing 757-200 is the aircraft model that flies most regularly on the Chicago to Shannon flight route.

  • Which airline alliances offer flights from Chicago to Shannon?

    oneworld, and Star Alliance are the airline alliances operating flights between Chicago and Shannon, with oneworld being the most commonly used for this route.

  • Which is the best airline for flights from Chicago to Shannon, United Airlines or American Airlines?

    The two airlines most popular with KAYAK users for flights from Chicago to Shannon are United Airlines and American Airlines. With an average price for the route of $842 and an overall rating of 7.4, United Airlines is the most popular choice. American Airlines is also a great choice for the route, with an average price of $751 and an overall rating of 7.2.

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

    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 Chicago to Shannon.

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

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

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

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

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

    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 to Shannon from Chicago up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Chicago to Shannon

  • Looking for a cheap flight? 25% of our users found flights on this route for $598 or less round-trip.

Reviews of the top 3 airlines serving from Chicago to Shannon

 
See real verified KAYAK customer reviews for airlines flying from Chicago to Shannon. 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 Chicago to Shannon? 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 9092 reviews
8.1Crew
7.3Comfort
7.1Entertainment
6.6Food
7.7Boarding
Airline reviews

The movies offered were great. Staff were very pleasant and very efficient.

10.0 ExcellentAnonymous, Dec 2025
ORD - HND
Read more United Airlines reviews

The movies offered were great. Staff were very pleasant and very efficient.

After a delay at the gate, C3, at Ohare on Sunday, I left my Blk ski coat on the bench at the gate, lost! Please review my lob claim, thx.

Very nice flight love the small aircraft. We had a wonderful flight attendant. Nice to see someone that really enjoys her job. Don't have her name but had a southern accent.

Very thoughtful flight attendant offered me water immediately since I had run to make my connection.

Seats in waiting area and on plane hard as rock. Fast internet on the flight was great! Crew was kind.

Always wish for more healthy, gluten free options. We have to bring our own.

Having a long layover, I was very appreciative of the ability to stand by for an earlier flight. Other airlines like Delta have refused this to me in the past, just to be mean (because my ticket class wasn't high enough). United went out of their way to help me get to my destination early, which I really appreciated given that it was the third leg of a 24+ hour journey for me.

Other than a way way too cold cabinets for the entire flight, all was great

One bag is incorrect and not acceptable for an international flight. The food was not just good. I won't fly with them again.

Excellent flight. Smooth, efficient boarding. Quick flight. Arrived early at STL.

We loved the steward on the plane. He made the night enjoyable

The plane was late, when we did board the plane was as cold as a freezer. I was freezing the entire flight, no blankets. Lost miserable flight I’ve ever had.

My wife and I love to travel, so we fly a lot. We've already logged 381,075 miles and with practically every major airline. But this flight was very disappointing. It started off well, with no delays and a new plane. But when lunchtime approached, all that good impression was ruined. Instead of white tablecloths, we were offered small, dark placemats, which, as it turned out, were perfectly adequate for the food. All the food offered—and my wife and I only took fish, and the meat—was not just bad, it was downright disgusting and not heated enough. The same applies to the appetizers. This was the first time in many years of traveling that we've been offered such disgusting food.

Lost luggage stuck no clothes and no word after 2 days leaving on cruise no stuff or clothes

3 hour weather delay followed by 1 hour (and counting) maintenance delay. UGH!

After we'd boarded , they canceled the flight. The crew didn't even know , we just all received text messages. Then after they deplaned us , AA was just like "too bad, go F your self, we sure ain't gonna help you"

After a two hour delay, my flight was CANCELLED! No pilot available. Such BS.

Amazing food, great staff, with one noticable detail missing ...but no seat entertainment in any of aircraft ...I am not a fan

I wish American Airlines would change the airline industry by loading the plane back to front instead of front to back. Planes would board so much more smoothly and quickly.

I have long legs, my foot was out in the aisle and when a flight attendant came walking by and I didn't notice, instead of saying "excuse me" or anything like that, she kicked my foot. Extremely rude

Ground staff and cabin crew were excellent. Flight was perfectly on time. Zero issues.

Even after a delay, getting off the ground, thanks for keeping me safe, the airline made certain that my connecting flight was rebooked to get me to my final destination. It was actually rebooked twice, and my luggage still managed to meet me. The airline gave me a credit for food and beverage to be used at the airport vendors, regretfully, the credit did not transfer to my final boarding pass. Oh, well…

Trip was smooth, good drew, average meal, almost cold coffee. Excellent landing. Did not enjoy going down the stairs, walking to the gate, walking up the stairs, going a long walk to the exchange gate, and going down the stairs again to be bussed all the way where we originally landed to take our next flight! Over all an average experience. Thank you.

I booked extra leg room, due to seat neighbor i now consider extra shoulder and arm room as well. Seems like the seats shrink in width now The crew was very friendly and professional ( 100%). Food was good not great, breakfast was bad, a dry slice of bread would have been better. Facilities clean.

Luggage transfer in Chicago was not performed in time. I received my luggage at my destination two days later.

love the crews and my only problem was the delay at Frankfurt was very bad. I have travelled with Lufthansa for over 30 years now and this was cost me some planned business appointment

The flight delay made the connection a bit tight but that's outside the flight crew's control.

We just made it to our connecting flight. A long, long speed walk!

We didn't get the coffee with breakfast in the morning.. 30 mins lazer I asked flight attendant why don't we get coffee now at least.. after the breakfast..she said that captain announced possible turbulences fee minutes ago, which didn't ecplain why we didn't get it with the breakfast..breakfast was very poor btw..just little pastry which you can eat in 4 little bites. Turbulences fortunately didn't even happen.. but we didn't get that more than necessary coffee in the morning after the night flight with very poor sleep.. They just served breakfast 1 hour afzer we took off..at like 11 PM.. that doesn't make sense at all.. Also, flight attendants weren't very nice..they looked like they're not happy with their job.. :/

Lufthansa still has a good level of quality compared to US airlines, especially with respect to (1) food quality - actually tasty, (2) good French red wine - free, (3) good movie selection. Also my ticket price includes 1 free check-in luggage, while some other budget airlines sneak in an extra $150 for a checkin.

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

Information on your arrival and departure airports