Cheap flights from Chicago to Shannon from $321

In general, April is the cheapest month to fly from Chicago to Shannon, Clare. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $600. If you are unable to visit Shannon, Clare during the month of April, then departing from Chicago during the month February is also very affordable. Most momondo users find prices during this month for around $621.

The cheapest day to depart from Chicago to Shannon, Clare is on a Wednesday when prices can be found for as low as $793. The most expensive day to fly to Shannon, Clare is Saturday, with ticket prices averaging around $1,016.

Fly from Chicago O'Hare Intl to Shannon for the best Chicago - Shannon flight prices

You are more likely to see cheaper flights to Shannon, Clare from Chicago when booking weeks ahead of your departure date. In general, you can expect to find flights to Shannon, Clare for around $903 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Shannon, Clare from Chicago for as low as $683 on momondo.

There is only 1 cabin class available to choose from on Chicago to Shannon, Clare flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

You could potentially save up to 20% on your flight if you consider stops on a Chicago to Shannon, Clare flight.

Aer Lingus, KLM, and Delta are the most popular carriers operating from Chicago to Shannon

United Airlines, American Airlines and Lufthansa are the top three most popular airlines that fly to Shannon, Clare from Chicago according to our data. United Airlines is the first choice among our users, with 70% of people opting to fly with this airline when traveling to Shannon, Clare. Keep in mind that there are 3 different airlines that fly to Shannon, Clare on a routine basis, so you have a few additional options to choose from.

Historically, on average around 35% of flights between Chicago and Shannon have experienced a delay on any given week. The average delay length over the past 12 months has been 152 minutes.

Generally, flights departing in the evening tend to experience fewer delays. Flights at night have, in the past, seen delays more frequently in comparison.

Monday is statistically the day of the week which experiences the fewest number of delays on this flight route. Wednesday has historically seen more delays on average compared to the rest of the week.

According to our data, United Airlines have had the least number of delays on this route over the last 12 months; with about 36% of their flights experiencing any sort of delay.

Frankfurt am Main (FRA) was the most common stop: 70% of momondo users choosing 1-stop flights on this route connected there.

Flights via Newark (EWR) offer the lowest average round-trip price of $584.

Flights connecting via London (LHR) have the shortest average one-way travel time: 11h 00m.

London (LHR) has the shortest average layover time for this route: 1h 45m.

The number of flights available between Chicago and Shannon, Clare is 3 per day as of August 2026. The most frequent departure time is 6:00PM, with 100% of daily flights leaving in the evening.

21 flights are operational weekly from Chicago to Shannon, Clare as of August 2026. The most popular departure day for this route is Mon, with 14% of flights per week taking off on this day.