CHI - SNN

$311 Find Cheap Flights from Chicago to Shannon - 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 Chicago to Shannon departing on 10/1. 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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Everything you should know

Cheapest round-trip
$536
Typical prices: $765-$1,015
British Airways
Fri 9/11Fri 9/18
ORD - SNN • 1 stop
Cheapest non-stop
$782
United Airlines
Sun 8/23Tue 9/1
ORD - SNN • Non-stop
Top airlines
Cheapest • from $536 (round-trip)
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
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Airline reviews
Airline reviews
+1
Nonstop flights
You can fly direct with United Airlines. Average duration is 7h 25m
Direct flights
Direct flights
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Direct flights
Direct flights
+1
Top routes
Cheapest
Most popular
Insights
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Insights
Insights
Avoid delays
Most punctual • 66% on-time
Best time • Fewest delays
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $712 (round-trip)
Shortest trip • 9h 28m (one-way)
Insights
Insights
Insights
Insights
When to book
in advance
Our data shows that travelers who book at least 2 weeks in advance save around 42% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 30% price drop
Most popular
Good to know
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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

Fri, Sep 11 - Fri, Sep 18
British Airways Logo
10:25 pm - 3:50 pm
ORD
-
SNN
11h 25m
1 stop
British Airways Logo
7:30 am - 2:55 pm
SNN
-
ORD
13h 25m
1 stop
$536British Airways
Thu, Oct 22 - Sun, Nov 1
Multiple Airlines Logo
7:25 pm - 8:50 pm
ORD
-
SNN
19h 25m
3 stops
Multiple Airlines Logo
7:45 pm - 5:20 pm
SNN
-
ORD
27h 35m
3 stops
$739Multiple Airlines
Mon, Sep 21 - Tue, Sep 29
United Airlines Logo
6:05 pm - 7:30 am
ORD
-
SNN
7h 25mnonstop
United Airlines Logo
12:30 pm - 9:32 pm
SNN
-
ORD
15h 02m
1 stop
$758United Airlines
Mon, Sep 21 - Tue, Sep 29
United Airlines Logo
6:05 pm - 7:30 am
ORD
-
SNN
7h 25mnonstop
United Airlines Logo
12:30 pm - 11:21 pm
SNN
-
ORD
16h 51m
1 stop
$758United Airlines
Mon, Sep 21 - Tue, Sep 29
United Airlines Logo
10:25 am - 10:15 am
ORD
-
SNN
17h 50m
1 stop
United Airlines Logo
12:30 pm - 10:28 pm
SNN
-
ORD
15h 58m
1 stop
$763United Airlines
Thu, Oct 22 - Sun, Nov 1
Multiple Airlines Logo
7:25 pm - 8:50 pm
ORD
-
SNN
19h 25m
2 stops
Multiple Airlines Logo
7:45 pm - 5:20 pm
SNN
-
ORD
27h 35m
3 stops
$768Multiple Airlines
Tue, Sep 1 - Tue, Sep 15
Lufthansa Logo
6:05 pm - 7:30 am
ORD
-
SNN
7h 25mnonstop
Lufthansa Logo
9:30 am - 11:50 am
SNN
-
ORD
8h 20mnonstop
$783Lufthansa
Wed, Sep 9 - Thu, Sep 17
Lufthansa Logo
6:05 pm - 7:30 am
ORD
-
SNN
7h 25mnonstop
Lufthansa Logo
9:30 am - 11:50 am
SNN
-
ORD
8h 20mnonstop
$783Lufthansa
Tue, Sep 15 - Fri, Sep 25
American Airlines Logo
3:00 pm - 11:20 am
ORD
-
SNN
14h 20m
2 stops
American Airlines Logo
2:30 pm - 8:48 am
SNN
-
ORD
24h 18m
1 stop
$1,050American Airlines
Mon, Sep 14 - Fri, Sep 25
American Airlines Logo
3:50 pm - 11:20 am
ORD
-
SNN
13h 30m
2 stops
American Airlines Logo
2:30 pm - 8:48 am
SNN
-
ORD
24h 18m
1 stop
$1,050American Airlines
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.

How much is a round-trip flight from Chicago to Shannon, Clare?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Chicago to Shannon, Clare departing in September.

Flight prices are typical for this route right now.

Flights to Shannon, Clare from Chicago usually cost between $474 and $885 in September.
The lowest price found in the past 5 days was $536 on British Airways (Sep 11-Sep 18).

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 $693 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 Wednesdays and avoid leaving on a Saturday, as it's usually the priciest day. When flying back from Shannon, Friday is the cheapest day to fly and Monday is the most expensive.

What is the cheapest month to fly from Chicago to Shannon?

To calculate monthly average prices, KAYAK takes all prices for each month 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 median of all values for each month.

The cheapest month for flights from Chicago to Shannon is April, where tickets cost $600 (return) on average. On the other hand, the most expensive months are December and June, where the average cost of round-trip tickets is $1,330 and $1,111 respectively.

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 $892 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 2 weeks before departure, which saves you about 42% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 6 weeks before departure.

Good to know

Low season

August

Cheapest flight

$311
Best time to beat the crowds with an average 36% drop in price.
Most popular time to fly with an average 40% 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 5 days, the lowest price for a flight from Chicago to Shannon was $311 for a one-way ticket and $536 for a round-trip.

  • 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?

    Aer Lingus, 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.

  • On which days can I fly direct from Chicago to Shannon?

    There are nonstop flights from Chicago to Shannon on a daily basis.

  • 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 $931 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 $621 and an overall rating of 7.1.

  • 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 $604 or less one-way and $913 or less round-trip.

Prefer to fly direct from Chicago to Shannon?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Chicago to Shannon.
Find which airlines fly direct from Chicago to Shannon Airport, which days they fly and book direct flights.

Direct departures

Chicago to Shannon

Monday

United Airlines

United Airlines

Tuesday

United Airlines

United Airlines

Wednesday

United Airlines

United Airlines

Thursday

United Airlines

United Airlines

Friday

United Airlines

United Airlines

Saturday

United Airlines

United Airlines

Sunday

United Airlines

United Airlines

See more direct flights

Direct returns

Shannon to Chicago

Monday

United Airlines

United Airlines

Tuesday

United Airlines

United Airlines

Wednesday

United Airlines

United Airlines

Thursday

United Airlines

United Airlines

Friday

United Airlines

United Airlines

Saturday

United Airlines

United Airlines

Sunday

United Airlines

United Airlines

See more direct flights

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 10052 reviews
8.1Crew
7.1Entertainment
6.6Food
7.7Boarding
7.3Comfort
Airline reviews

It was hot and not as comfortable as the flight to Chicago. Must have been a different plane that needs to be worked on or replaced.

8.0 ExcellentArmedrest, Jul 2026
ORD - PAH
Read more United Airlines reviews

It was hot and not as comfortable as the flight to Chicago. Must have been a different plane that needs to be worked on or replaced.

The SFO lounge closes at 12 midnight. My flight took off at 2AM

It was extremely hot in the cabin the entire flight, vent air was worn

Have not had a flight out or returning to Norfolk that has not required maintenance, and a gate delay. Properly staff the crew so maintenance can be performed without last minute emergencies on each flight and there is enough staff to have gates prepared for inbound flights. Staff to ensure the safety and on time service vs. profit.

We were forced to eat vegetarian food because non veg food ran out. The breakfast was mediocre.

My original flight was cancelled and that affected my trip and my plans and I got no compensation and customer service was hard to reach as well

The kid in the middle seat kicked me almost the whole flight, almost kicked my hot tea off my tray. The flight was delayed due to the first plane not being able to be de-iced in July! We had to get a new plane. Now I drive 3 hours back to Edmonton because direct flights from PVR were way to expensive

The flight was delayed by a hour and I wish they had communicated it sooner. No issues on the plane, it did take a while for food to come.

Know that the movies that you are going to be offered are the oldest be rated movies they could possibly get. They may have one or two new movies that they keep advertising but when you’re flying 15 hours, there is nothing to see past the first new movie.

Agents at gate were not immediately available to solve problems and once they did they didn’t fix all the fight connections

I had my flight of Cedar Rapids. THen Chicago to Boston. Flight out of Cedar rapids was delayed by 12 hrs. Had to drive to Chicago to catch my flight

Long delays to board due to mechanical issues with plane.

Flight was delayed, boarded, sat at the gate for more than 30 minutes, left the gate then waited on the pad for another 30 to 60 minutes then returned to the gate, deboarded and was cancelled... alternative flight was not booked automatically. Waited in line for 30 minutes but fortunately an alternate flight to a different destination was found ... no thanks to the travel agent used by kayak

The flight from Milwaukee to Dallas was great the staff absolutely amazing. After that EVERYTHING WENT DOWN HILL!!! ABSOLUTELY HORRIBLE!!! WILL NOT FLY THIS AIRLINE AGAIN

I was very unhappy with the lack of communication from the cockpit. It took close to a half an hour before we took off after the doors were closed, and we got no announcements as to progress. It would be nice to get some acknowledgement of the situation and updates as to when we are taking off.

The seat was not even cleaned. It has full of cookie crums probably from last flight's passenger. Its basic expectation that, seats are clean.

Very turbulent flight, no drinks, very little service, unorganized boarding, gate changed multiple times

The flight was delayed significantly. Communication during the flight was abrupt and caused some panic as we were navigating turbulence. It was also too loud and every announcement felt startling. The flight attendants did not offer any assurances and I felt unsettled most of the flight. The seats, floor and tray table was very dirty. The seat next to me was broken and the passenger sitting there was very uncomfortable. He had a spring in his back and his seat made terrible squeaking noises through the flight.

Significant delays on my trip to Chicago and my trip back to NY

Delayed by 5 hours and I had to wit in the airport for more than 6+ hours.

It was okay. Mothers with rowdy children should be invited to sit in front of them.

Good food, overall very comfy. The flight was full so obviously not optimal, but it is what it is.

Flight was delayed by several hours and then cancelled due to weather. But Staff was very helpful getting me on a different flight. United should offer food coupons and tooth brush and paste for stranded passengers

I had a good comfortable seat. There was nearly an hour delay. There was an accident with the champagne, but I was well compensated. These things happen sometimes.

We missed our flight. There was not enough time built into the layover to get through immigration, customs, bagclaim, bag rechecking, and the long trip to another terminal and gate. Kayak really screwed up. We took the bus up to Wisconsin and then were picked up in Brookfield by private car. It was lucky we didnt miss the last bus out.

I tried both on line and by calling the Customer Service line to arrange for a special meal as i have food intolerances. I was under the impression from your service representative that I was successful. I was not. I cannot eat spicy foods and get very ill if i eat bell peppers. I could not eat either menu choice and no special meal was actually ordered. ( your representative tried to order it for a flight that did not have meal service!!! - found this out later). Your wonderful cabin crew managed to put together a fruit, salad, roll and cheese tray for me so I had something to eat. WHY WOULD YOU SERVE SPICY FOOD, WITH NO MILDER OPTION,ON AN INTERNATIONAL FLIGHT???

I liked Quiet people around me. Crew could have helped people with overhead luggage so they aren't moving other peoples bags around and causing problems for people that had there bags there first

The plane was delayed by two hours in Chicago which led to us missing the next flight. Lufthansa rebooked the flight and booked us a hotel for the night in Frankfurt. The level of customer service and getting us taken care of was superb. The flight crew and the service on the ground was superb.

The row of seats were so cramped it was difficult to get in and out of your seat. I even upgraded. A long flight and sad accommodations 😵‍💫 the shorter flight was very comfortable and the seating was spacious

I have flown with many airlines. My first time was several years ago. Now I remember why I avoided them for so long. Lufthanza is the only airline who has ever raised a size/weight issue with my modest standard size carry on. I had to repack three times to meet their carry-on weight criteria. (Apparently the rules of physics apply differently on Lufthansa flight than on other airlines.) In the meantime their staff was quite rude, repeating meaningless phrases like "Rules are Rules." And ignoring the additional fact that weight is also weight, whether it is in found in your carry on or in your suitcase. They eventually acknowledged that customer service and satisfaction is, for them, a low priority. Never choosing Lufthansa again.

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

Information on your arrival and departure airports