CHI - SNN

$343 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 6/6. 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.
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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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Cheap Flight Deals 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.

Recent round-trip flight deals from Chicago to Shannon

KAYAK's recommended round-trip deals from the most popular airlines that fly from Chicago to Shannon.
Discover the best prices for you by selecting your travel dates on KAYAK.
American Airlines Logo
5:40 pm - 4:10 pmORD-SNN
16h 30m1 stop
American Airlines Logo
9:15 pm - 3:05 pmSNN-ORD
23h 50m1 stop
$493American Airlines
Find Deal
Tue, Aug 5 - Tue, Aug 19
American Airlines Logo
5:45 pm - 4:10 pmORD-SNN
16h 25m1 stop
American Airlines Logo
9:15 pm - 11:50 amSNN-ORD
20h 35m1 stop
$494American Airlines
Find Deal
Wed, Aug 13 - Wed, Aug 20
American Airlines Logo
8:15 pm - 8:35 pmORD-SNN
18h 20m1 stop
American Airlines Logo
7:40 am - 8:08 pmSNN-ORD
18h 28m2 stops
$504American Airlines
Find Deal
Tue, Aug 5 - Tue, Aug 19
United Airlines Logo
6:05 pm - 7:30 amORD-SNN
7h 25mnonstop
United Airlines Logo
9:30 am - 11:45 amSNN-ORD
8h 15mnonstop
$562United Airlines
Find Deal
Tue, Aug 5 - Tue, Aug 19
United Airlines Logo
4:46 pm - 10:15 amORD-SNN
11h 29m1 stop
United Airlines Logo
9:30 am - 11:45 amSNN-ORD
8h 15mnonstop
$566United Airlines
Find Deal
Tue, Aug 5 - Wed, Aug 20
 Logo
7:17 am - 5:25 amORD-SNN
16h 08m1 stop
 Logo
1:45 pm - 7:30 pmSNN-ORD
11h 45m1 stop
Tue, Jul 22 - Wed, Jul 30
Delta Logo
7:00 am - 11:10 amORD-SNN
22h 10m1 stop
Delta Logo
1:05 pm - 9:34 pmSNN-ORD
14h 29m1 stop
$681Delta
Find Deal
Wed, Aug 13 - Tue, Aug 19
 Logo
1:31 pm - 11:10 amORD-SNN
15h 39m1 stop
 Logo
1:05 pm - 11:53 pmSNN-ORD
16h 48m2 stops
Fri, Aug 29 - Fri, Sep 12
Delta Logo
6:00 am - 11:10 amMDW-SNN
23h 10m2 stops
Delta Logo
1:05 pm - 6:02 pmSNN-MDW
34h 57m2 stops
$833Delta
Find Deal
Sun, Jun 8 - Wed, Jun 18
British Airways Logo
5:45 pm - 11:20 amORD-SNN
11h 35m1 stop
British Airways Logo
4:55 pm - 3:45 pmSNN-ORD
28h 50m2 stops
$991British Airways
Find Deal
Wed, Jun 18 - Wed, Jul 2
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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?

The cheapest price for flight routes found by users searching on KAYAK in the last 2 weeks for round-trip flights from Chicago to Shannon.

Our data shows that the cheapest route for a return flight from Chicago to Shannon cost $590 and was between Chicago O'Hare Intl Airport (ORD) and Shannon (SNN). On average, the best prices are found if you fly this route. The average price for a return flight for this route is $590.

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, Wednesday is the cheapest day to fly and Sunday 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 September, where tickets cost $545 (return) on average. On the other hand, the most expensive months are December and April, where the average cost of round-trip tickets is $1,167 and $1,150 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.

No, with an average price for the route of $4,663, prices are generally cheapest when you fly direct.

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. For the absolute cheapest price, our data suggests you should book 24 weeks before departure.

Good to know

Low seasonFebruary
High seasonSeptember
Cheapest flight$343
Best time to beat the crowds with an average 33% drop in price.
Most popular time to fly and prices are also 33% lower on average.
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

  • How many flights are there between Chicago and Shannon per day?

    There is a maximum of 1 nonstop flight a day that takes off from Chicago and lands in Shannon, with an average flight time of 7h 25m. The most common departure time is 6:00 pm and most flights take off in the evening. Each week, there are 7 flights.

  • 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 $343 for a one-way ticket and $493 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?

    American Airlines, Finnair, and Aer Lingus 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?

    Star Alliance is the only airline alliance operating flights between Chicago and Shannon.

  • 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 $843 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 $729 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 $513 or less one-way and $721 or less round-trip.

Prefer to fly 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
See more direct flights

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 8696 reviews
7.1Entertainment
8.1Crew
7.7Boarding
6.6Food
7.3Comfort
Airline reviews

A bit rush for transit. Food and entertainment are not available

8.0 ExcellentAnonymous, Apr 2025ORD - SFO
Read more United Airlines reviews

A bit rush for transit. Food and entertainment are not available

Boarding was a little difficult. The gate area at O'Hare was very small and crowded due to multiple gates in the area. Could not hear the intercom, so had to rely on signage to see when my group was boarding and the signage was blocked by passengers standing in the gate. Flight was great and we arrived in Montreal on time.

Smooth boarding process. Early departure, smooth flight, early arrival. The entertainment package has very good recent movie options. The flight crew were friendly and professional.

I do prefer to fly United and have always had excellent service, except for bad weather. Flights are on time and staff is alway curtious and helpful

They switched out gate from terminal 1 to terminal two ten minutes before boarding. So we had to make a 20 min crazy fast walk to a different terminal. Then we boarded the plane and waited for over 40 minutes until push back. Brutal

My flight was scheduled for about 6:05 departure. There were 11 gate changes from 4-7pm and the flight was 3 hours delayed due to operational issues. The plane taxied around the airport for about half an hour before stopping to be de-iced. It would have been nice if we were alerted of the plan to de-ice prior to the 30 minute drive around the airport. The flight attendant was friendly, which was the only redeeming thing about this flight. As a former flight attendant for United, I was extremely disappointed.

Delays took 2hours and thirty minutes making me miss my connecting flight and make me sit in the Chicago airport for 9 hours

Had a short delay once we boarded the aircraft in Chicago, but it was fixed in no time flat then we were on our way. The pilot was able to make up the time lost and we landed 5 minute later then schedualed . Great service

Our seats were all the way in back of the plane,

The seats on this flight were almost roomy enough to be the basic amount needed for human existence. I think my favorite part of this flight was it landed at an A gate, which was the most palatial part of Sea-Tac I've ever seen - a massive improvement from the S gates.

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

Excellent! The gate agents were kind enough to rebook me on an earlier flight saving me from a 6 hour layover. Even my luggage made it despite the fact that the connection was technically too narrow. The flight itself was very comfortable, roomy, and clean. Plenty of space for my carryon items with plugs to charge my phone. After a long international flight of 14 hours, this was an excellent way to end my travels!

Great experience. Flight boarded easily. Departed early. Smooth flight. Great arrival in DC--almost no taxing! Almost direct to gate from runway. Crew was terrific. Same cookies and beverages in main cabin. I did not use the entertainment system on this flight.

This particular flight wasn't very full at the back, so there were three seats available for spreading out and getting relatively comfortable

Most of the delay was due to weather which is not what was at issue here. One delay was due to a missing flashlight and in the end the flashlight was actually found on the plane. The entertainment system is very limited. Live TV options offer only a few channels that are not very appealing. Boarding and deplaning are always difficult. It just takes too much time to get on and off the plane. On the plus side, I missed my connecting flight, but was easily able to book a later flight from the app while enroute.

You were more on time than United. I'm so over united delays.

The meals were mediocre and the alcohol selection was poor. I enjoyed the selection of movies and other entertainment.

I chatted with the captain before the flight, and similarly during the welcome announcement, he warned of a turbulent flight that may impact the in-flight service. However, once at altitude, he announced that the weather changed and he immediately turned off the seatbelt sign. But it appeared the cabin crew had already decided to take off this flight. They remained seated and then just chatted in the galley. The flight was fully catered, but only first class received service.

My flight attendant was attentive! The elderly person next to me was flatulent and the flight attendant could see that I was in distress and brought me some face masks

My boarding pass wouldn't pull up in the app very easily and had to really dig through my email. That caused a delay in TSA..

Too much long line at the TSA and Security. Prepare for long walk for baggage claim.

The flight from Seattle was delayed, which made me miss my connection to Florence. I was re-booked NINE HOURS LATER!!! That’s basically a vacation day lost. British Airways needs to partner with other airlines when possible to get a more realistic travel time, if delays occur. I realize there aren’t many flights to Florence from London, so I would book differently were I to return. The actual flight from Seattle was very comfortable and the crew was great, no faults there. I enjoy British Airways, this was an anomaly.

The crew could not have been more helpful, my meal was excellent, I slept peacefully until right before landing, and the BA lounge was a godsend. The only negative I encountered was the coffee both on the plane and in the lounge. Not to my taste but that’s a personal preference.

I don’t understand why a reputable airline like BA would delegate their London flights to AA. Makes no sense to me, as most domestic carriers do such a poor job these days. Terminal 3 at LHR is a total dump

The boarding process was quite loud and chaotic. The flight attendants kept barking over the PA system about people needing to only stow large items in the overhead bins. During the one and only service, I was hit by the service cart. At the same time, a passenger was returning from the bathroom and the crew definitely saw him but stopped a few seats short of allowing him to sit down before starting service and made him wait a good 10 minutes before passing his seat and allowing him to sit down, after which he had to ask for his snack and beverage or he would have been passed over. Neither flight attendant thanked passengers as they left; in fact, I did not see them again once the plane door was opened.

Cancelled flight minutes before boarding. Rescheduled flight was two days later

The flight attendants were EXTREMELY personable and appreciated the service, lights going off after dinner (probably the norm, but I haven’t flown evening overnight flights in a while). Thank you!

Business class seats were very dated on my plane. Very little storage, charging ports were not easily accessible, tv screen kept flopping away. Vegetarian food was disappointing: hardly any protein and severely under-seasoned. Crew was lovely.

The food was ok, but not great. They delayed boarding in Portland and did not enforce group boarding. But the crew was excellent, went above and beyond.

The food was pathetic. There wasn't much leg room and recline space for such a long flight. No tea/ coffee for a 2-3 hour connecting flight without purchasing! Really!?

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

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