Cheap flights from Chicago to Shannon

Chicago FSS
CHI
Shannon
SNN

Flight deals from Chicago to Shannon

Below you can see the best deals on flights Chicago — Shannon for upcoming dates. Direct and connecting flights from various airlines — compare prices and choose the right ticket.

The lowest price for the next 2 months is on 28 September, from $420.

Top 10 cheap flights from Chicago to Shannon

About the Chicago — Shannon flight

Looking for cheap flights from Chicago to Shannon? Compare fares from different airlines, check the flight schedule and travel time — and book your Chicago — Shannon ticket online at the best price.

The route has direct flights — around 14 flights per week, flights are operated by United Airlines, a nonstop flight takes about 7 h 25 min, the distance between the cities is around 5,770 km.

Planning your trip? You may find our Shannon travel guide, how to get from the airport into town and Shannon weather forecast useful. To catch a low fare, use the low-price calendar and the monthly price chart on this page.

Facts about this route

from $420Min. price
SeptemberCheapest
SeptemberPeak season
YesDirect flights
5,770 kmDistance
7 h 25 minTravel time
1Airlines
14 / wkFlights

Flight schedule from Chicago to Shannon

The table shows direct flights from Chicago to Shannon on the selected date. The flight takes approximately 7 h 25 min. Regular flights are operated by United Airlines. Departures from O'Hare International Airport, Chicago Midway International Airport and Midway International Airport airports, arrivals at Shannon Airport.

For each flight, the following details are shown: departure time (local), arrival city and airport, flight number and airline, terminal or gate, and status. Click on a flight to open its details and go to ticket search. To view flights on a different day, change the date above the table.

Today
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Last update: 01 Sep 2026

Flight ticket prices by day: Chicago — Shannon

Below is a calendar of the lowest flight ticket prices for Chicago — Shannon by day. Pick a convenient date and instantly see the fare. The cheapest flights on this route start from $420 in September, and the most expensive are around $420 in September. If your travel dates are flexible, the calendar will help you find the best price for your preferred period. To view round-trip fares, switch to the "Round trip" tab above the calendar, select your departure date — and the right-hand calendar will highlight the lowest prices for return flights on each day.

 
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Prices by month

Average one-way fares from Chicago to Shannon by month. Tickets are usually cheapest in February (around $313) and priciest in July (about $502) — use the table and chart below to pick the best time to fly.

MonthAverage priceLevelMonthAverage priceLevelMonthAverage priceLevel
Jan$334lowMay$397mediumSep$449high
Feb$313lowJun$491highOct$376medium
Mar$324lowJul$502highNov$313low
Apr$355mediumAug$470highDec$387medium

Some values are estimated based on seasonality.

When to fly

Weather in Shannon: it is warmest in July (up to 19 °C on average) and coolest in January (around 8 °C). The driest month is May.

Tickets are usually cheapest in September and most expensive in September. Compare prices and weather by month in the charts below to pick the best time to fly.

Temperature · Shannon

Dry and wet days · Shannon

Wind speed and direction · Shannon

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How to get the best deal on a Chicago — Shannon ticket

  • Book ahead: fares for Chicago — Shannon are usually lower 3–8 weeks before departure than at the last minute.
  • Play with your dates — Tuesday, Wednesday and Saturday departures are often cheaper than Friday and Sunday.
  • Chicago is served by more than one airport — compare fares and travel time to each before you book.
  • The cheapest month to fly to Shannon is usually September — plan your trip around it if your dates are flexible.
  • Compare direct and connecting flights: nonstop is faster, while a connection is sometimes noticeably cheaper.
  • Watch the low-price calendar and the monthly price trend on this page — they make it easier to catch a good date.
  • Travelling light? Pick a cabin-baggage-only fare — tickets without checked luggage are noticeably cheaper.
  • Get to the airport in good time — about 2–3 hours before an international departure and roughly an hour before a domestic one.

Airlines

Flights on the Chicago — Shannon route are operated by 1 airline; United Airlines runs the most flights (around 100% of all flights). Compare carriers, flight shares and schedules below.

  • United AirlinesUA
    5x/week
    WebsiteFleet: 956165M pax/year
    • Direct flight ORD → SNN5x/week
    100.0%Open →

Cities and airports on the Chicago — Shannon route

Flights Chicago — Shannon depart from O'Hare International Airport, Chicago Midway International Airport, Midway International Airport and Chicago Rockford International Airport and arrive at Shannon Airport. Below are pages for the cities, countries, and airports on the route: airlines, schedules, and travel guides.

Departure

Chicago

CHI
United States
About the cityHow to get thereWeatherAll about the country United States
Arrival

Shannon

SNN
Ireland
About the cityHow to get thereWeatherAll about the country Ireland
Departure airports
Arrival airports

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Frequently asked questions about the Chicago — Shannon flight

How long is the flight from Chicago to Shannon?

A nonstop Chicago — Shannon flight takes about 7 h 25 min — the distance between the cities is around 5,770 km.

How far is it from Chicago to Shannon?

The distance from Chicago to Shannon is about 5,770 km, which a nonstop flight covers in around 7 h 25 min.

Are there direct flights from Chicago to Shannon?

Yes, there are nonstop flights Chicago — Shannon — around 14 flights per week.

Which airlines fly from Chicago to Shannon?

Airlines operating Chicago — Shannon include United Airlines. See the full list with schedules in the "Airlines" section on this page.

Which airports do Chicago — Shannon flights use?

Flights from Chicago depart from O'Hare International Airport, Chicago Midway International Airport, Midway International Airport, and arrive at Shannon Airport. If a city has more than one airport, check which one your ticket uses before you travel.

How much is a ticket from Chicago to Shannon?

The price of a Chicago — Shannon ticket depends on your travel date, season and demand: it is usually cheapest to fly in September, and most expensive in September. Check the current lowest fare and low-price calendar on this page.

When is the best time to book flights Chicago — Shannon?

Flights Chicago — Shannon are usually cheaper when booked in advance — a few weeks before departure and away from peak dates; the most budget-friendly month to fly is September. Compare prices by month in the price trend chart on this page.

How can I find the cheapest flights from Chicago to Shannon?

To catch a low fare Chicago — Shannon, book a few weeks in advance, keep your dates flexible, and compare airlines and connecting options. The low-price calendar and monthly price chart on this page show the cheapest days and months at a glance: the most budget-friendly month to fly is usually September.

How early should I arrive at the airport?

For international flights, plan to be at the airport about 2–3 hours before departure, and around an hour before a domestic flight. Allow extra time during busy travel seasons and at large hubs, where check-in and security lines can be longer.

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Where else you can fly from Shannon

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LondonNew York CityBostonParisDublinFrankfurt am MainNaplesRome

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