€320 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 9/9. 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

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

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Shannon to Illinois, 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 Shannon to Illinois, as well as popular online travel agencies
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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

Sat, 12 Sep - Sun, 20 Sep
British Airways Logo
16:50 - 12:30
SNN
-
ORD
25h 40m
1 stop
British Airways Logo
15:50 - 11:20
ORD
-
SNN
13h 30m
2 stops
€656British Airways
Sat, 12 Sep - Sun, 20 Sep
British Airways Logo
16:50 - 12:25
SNN
-
ORD
25h 35m
1 stop
British Airways Logo
15:50 - 11:20
ORD
-
SNN
13h 30m
2 stops
€657British Airways
Sat, 12 Sep - Sun, 20 Sep
British Airways Logo
07:30 - 14:55
SNN
-
ORD
13h 25m
1 stop
British Airways Logo
17:00 - 20:35
ORD
-
SNN
21h 35m
1 stop
€658British Airways
Sat, 12 Sep - Sun, 20 Sep
British Airways Logo
07:30 - 21:12
SNN
-
ORD
19h 42m
2 stops
British Airways Logo
15:50 - 11:20
ORD
-
SNN
13h 30m
2 stops
€661British Airways
Sat, 12 Sep - Sun, 20 Sep
British Airways Logo
07:30 - 21:12
SNN
-
ORD
19h 42m
2 stops
British Airways Logo
15:50 - 11:20
ORD
-
SNN
13h 30m
2 stops
€663British Airways
Sat, 12 Sep - Sun, 20 Sep
United Airlines Logo
09:30 - 11:50
SNN
-
ORD
8h 20mdirect
United Airlines Logo
18:05 - 07:30
ORD
-
SNN
7h 25mdirect
€728United Airlines
Sat, 22 Aug - Sat, 29 Aug
Multiple Airlines Logo
06:40 - 16:57
SNN
-
ORD
16h 17m
2 stops
Multiple Airlines Logo
19:25 - 20:10
ORD
-
SNN
18h 45m
3 stops
€729Multiple Airlines
Sat, 12 Sep - Sun, 20 Sep
United Airlines Logo
09:30 - 11:50
SNN
-
ORD
8h 20mdirect
United Airlines Logo
15:55 - 10:15
ORD
-
SNN
12h 20m
1 stop
€731United Airlines
Mon, 27 Jul - Sun, 2 Aug
Delta Logo
13:05 - 10:05
SNN
-
MDW
27h 00m
2 stops
Delta Logo
09:19 - 11:10
MDW
-
SNN
19h 51m
2 stops
€794Delta
Thu, 23 Jul - Mon, 17 Aug
Multiple Airlines Logo
13:05 - 16:15
SNN
-
MDW
33h 10m
2 stops
Multiple Airlines Logo
12:46 - 11:10
MDW
-
SNN
16h 24m
2 stops
€941Multiple 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 72 hours was to Chicago, at €715 return. The most popular route is from Shannon (SNN) to Chicago O'Hare Intl Airport (ORD), and the cheapest round-trip airline ticket found on this route in the last 5 days was €715.

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 €803 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 €803.

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 2 stops stopover the cheapest option at €689 on average.

Good to know

Cheapest flight€320
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 9909 reviews
7.3Comfort
7.1Entertainment
6.6Food
7.7Boarding
8.1Crew
Airline reviews

The flight was delayed an hour and a half while you tried to fix the plane so I missed my connecting flight in Chicago. In Chicago, it took an hour to get the luggage. Then the conveyor belt was broken where I have to transfer my flight from an international flight to the continuing flight so I had to carry a large suitcase through the airport. The elevators were broken in the airport. I paid people to carry the luggage for me up the escalators in two different areas. The person who helped me get the new flight was outstanding. The temperature in the airport in Chicago was horrible. We were all sweating. It was the day from hell. That was after two hours in a security line in Athens. I have TSA pre-checked and global entry and I still waited. Two hours in a security line. Something has got to be done to stream line this service. After I’ve been through all of that in Athens, why do I have to go through it again in Chicago. It was the worst travel experience I have had in a long time. Your bathrooms have gotten so small that you can hardly get your butt on the toilet. You’ve taken the airspace out of the inside of the top of the toilet. It really makes for a miserable experience. Also on a 4 1/2 hour flight from Chicago to Los Angeles. The only thing we’re given is a bag of pretzels. REALLY!!

2.0 Mediocremary kay, Jul 2026
ATH - ORD
Read more United Airlines reviews

The flight was delayed an hour and a half while you tried to fix the plane so I missed my connecting flight in Chicago. In Chicago, it took an hour to get the luggage. Then the conveyor belt was broken where I have to transfer my flight from an international flight to the continuing flight so I had to carry a large suitcase through the airport. The elevators were broken in the airport. I paid people to carry the luggage for me up the escalators in two different areas. The person who helped me get the new flight was outstanding. The temperature in the airport in Chicago was horrible. We were all sweating. It was the day from hell. That was after two hours in a security line in Athens. I have TSA pre-checked and global entry and I still waited. Two hours in a security line. Something has got to be done to stream line this service. After I’ve been through all of that in Athens, why do I have to go through it again in Chicago. It was the worst travel experience I have had in a long time. Your bathrooms have gotten so small that you can hardly get your butt on the toilet. You’ve taken the airspace out of the inside of the top of the toilet. It really makes for a miserable experience. Also on a 4 1/2 hour flight from Chicago to Los Angeles. The only thing we’re given is a bag of pretzels. REALLY!!

1 flight cancelled Had to fly out of different city Flight at new departure city was delayed 3 hours causing us to miss connecting flights. By the time we did make it to Prague our luggage did not. Had to wait day and a half for luggage to be delivered. Customer service was not good. Agents did not arrive at gate until 5-10 minutes before boarding

Awful. Delayed flights, missed connection to Toronto. Hotel vouchers were for already booked hotels x3. Giant waste of my time

Boarding was great, and the crew were very friendly. The seats must have been a bit on the older side and you could feel some of the seat components through the padding. Also, the plugs did not work on the row's entertainment screen or charging ports. Checked bag was transferred for connecting flight, and we appreciated how early we had the connecting gate information.

Very easy ! Use the kiosk and bag drop and right to security within 10 min

Prefer not to have an almost 3 hour delay with useless communication that wasn't accurate.

Over 5 hour delay with minimal updates or ability to standby for alternative flights. During boarding and 1 hr+ wait for takeoff, seats were drenched w water from air conditioning condensation and always leftover crumbs on carpet and seats

I flew from Barcelona to Chicago on UA yesterday. The flight was on time, the pilots did a great job and the flight attendants were super nice. All of them. Also food was good, and the drinks, including wine were served a few times during our flight. I highly recommend this airline.

Boarded early, left early, arrived 40 mins early! A win win for me!

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