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Shannon

$287+ Cheap flights from Illinois to Shannon (SNN)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/3. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — SNN
Jan 26 — Feb 21
Sun 1/26
Sun 2/2
1 adult, Economy
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Cheap flight deals from Illinois to Shannon

Discover tips and strategies to find the most affordable flight options for your journey from Illinois (USIL) to Shannon (SNN). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated January 21, 2025.

Round-trip from

$567
(American Airlines)

One-way from

$287
(Kiwi.com)

Good round-trip deal

$839 or less

Good one-way deal

$493 or less
From Illinois to Shannon
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One-way flight from Illinois to Shannon
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Price to beat on a round-trip flight from Illinois to Shannon.
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Price to beat on a one-way flight from Illinois to Shannon.
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Find flight deals from Illinois to Shannon

Cheapest flights from Illinois to Shannon
Explore the most affordable flight options available from Illinois to Shannon. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 21, 2025.

This American Airlines deal was found by Cheapflights users on 1/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/198:25 pmORD - SNN
1 stop14h 20mAmerican Airlines
Wed 2/267:45 amSNN - ORD
1 stop13h 00mAmerican Airlines
Deal found 1/20$568
This United Airlines deal was found by Cheapflights users on 1/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/246:05 pmORD - SNN
Nonstop7h 25mUnited Airlines
Fri 9/59:30 amSNN - ORD
Nonstop8h 15mUnited Airlines
Deal found 1/20$583
This American Airlines deal was found by Cheapflights users on 1/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/1611:57 amSTL - SNN
2 stops17h 33mAmerican Airlines
Sun 2/237:45 amSNN - STL
2 stops20h 18mAmerican Airlines
Deal found 1/20$601
This FlightHub deal was found by Cheapflights users on 1/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/11:55 pmORD - SNN
2 stops15h 25mAir Canada
Tue 4/87:40 amSNN - ORD
2 stops18h 20mAir Canada
Deal found 1/20$728
This Air Canada deal was found by Cheapflights users on 1/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/194:00 pmORD - SNN
2 stops13h 30mMultiple Airlines
Wed 2/267:45 amSNN - ORD
3 stops20h 18mMultiple Airlines
Deal found 1/20$750
This Ovago deal was found by Cheapflights users on 1/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/14:55 pmORD - SNN
1 stop12h 25mAer Lingus
Tue 4/87:40 amSNN - ORD
2 stops17h 20mAer Lingus
Deal found 1/20$774
This Air France deal was found by Cheapflights users on 1/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/236:10 pmORD - SNN
1 stop11h 00mAir France
Tue 9/91:05 pmSNN - ORD
1 stop13h 55mAir France
Deal found 1/20$795
This Air Canada deal was found by Cheapflights users on 1/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/1611:20 amSTL - SNN
3 stops18h 10mMultiple Airlines
Sun 2/237:45 amSNN - STL
2 stops37h 21mMultiple Airlines
Deal found 1/20$804
This United deal was found by Cheapflights users on 1/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/29:50 amSTL - SNN
1 stop15h 40mUnited Airlines
Thu 6/129:30 amSNN - STL
1 stop12h 14mUnited Airlines
Deal found 1/20$863
This Delta deal was found by Cheapflights users on 1/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/3112:15 pmORD - SNN
1 stop16h 55mDelta
Wed 6/111:05 pmSNN - ORD
1 stop13h 49mDelta
Deal found 1/20$868
This Flighttix deal was found by Cheapflights users on 1/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Flighttix is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/712:33 pmORD - SNN
1 stop11h 42mBritish Airways
Fri 3/142:45 pmSNN - ORD
1 stop12h 43mBritish Airways
Deal found 1/21$887
This Gotogate deal was found by Cheapflights users on 1/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/154:05 pmSTL - SNN
2 stops18h 05mAir Canada
Thu 5/229:15 pmSNN - STL
2 stops28h 28mAir Canada
Deal found 1/20$933

Find flights from Illinois to Shannon within your budget

Customize your flight search to find flights from Illinois to Shannon that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated January 21, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

ChicagoShannon

ORD - SNN

ORDSNN

Chicago O'Hare Intl

Tue 2/18

8:25 pm-4:45 pm

1 stop14h 20m

Shannon

Tue 2/25

7:45 am-5:00 pm

1 stop15h 15m

$567

ChicagoShannon

ORD - SNN

ORDSNN

Chicago O'Hare Intl

Tue 3/11

3:35 pm-11:30 am

2 stops14h 55m

Shannon

Tue 3/18

7:45 am-9:01 am

2 stops30h 16m

$707

ChicagoShannon

ORD - SNN

ORDSNN

Chicago O'Hare Intl

Wed 5/7

11:10 am-10:30 am

2 stops17h 20m

Shannon

Thu 5/15

12:30 pm-7:40 am

2 stops25h 10m

$721

ChicagoShannon

ORD - SNN

ORDSNN

Chicago O'Hare Intl

Sat 3/15

2:05 pm-4:45 pm

2 stops21h 40m

Shannon

Wed 3/26

7:45 am-2:45 pm

2 stops36h 00m

$734

ChicagoShannon

ORD - SNN

ORDSNN

Chicago O'Hare Intl

Tue 4/1

4:55 pm-11:20 am

1 stop12h 25m

Shannon

Tue 4/8

7:40 am-7:00 pm

2 stops17h 20m

$774

St. LouisShannon

STL - SNN

STLSNN

Lambert-St Louis

Fri 3/7

6:00 am-6:15 am

2 stops18h 15m

Shannon

Fri 3/14

2:45 pm-1:30 pm

1 stop27h 45m

$843

St. LouisShannon

STL - SNN

STLSNN

Lambert-St Louis

Mon 6/2

9:50 am-7:30 am

1 stop15h 40m

Shannon

Thu 6/12

9:30 am-3:44 pm

1 stop12h 14m

$863

ChicagoShannon

ORD - SNN

ORDSNN

Chicago O'Hare Intl

Sat 5/31

12:15 pm-11:10 am

1 stop16h 55m

Shannon

Wed 6/11

1:05 pm-8:54 pm

1 stop13h 49m

$868

St. LouisShannon

STL - SNN

STLSNN

Lambert-St Louis

Mon 5/12

4:05 pm-4:10 pm

2 stops18h 05m

Shannon

Mon 5/26

9:15 pm-3:16 pm

2 stops24h 01m

$874

ChicagoShannon

ORD - SNN

ORDSNN

Chicago O'Hare Intl

Fri 3/7

12:33 pm-6:15 am

1 stop11h 42m

Shannon

Fri 3/14

2:45 pm-10:28 pm

1 stop12h 43m

$887

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/20

Showing 1-10 of 27 results
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Best time to book a flight from Illinois to Shannon

Have a flexible travel schedule? Discover the best time to fly to Shannon from Illinois with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Travel insights for flights from Illinois to Shannon

Get recent, data-driven insights about flights from Illinois to Shannon including ideal travel times, pricing trends, and more.

What is the cheapest month to book a flight from Illinois to Shannon?

Currently, February is the cheapest month in which you can book a flight from Illinois to Shannon (average of $533). Flying from Illinois to Shannon in June is currently the most expensive (average of $1,007). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from IL to SNN?

Find hourly flight availability from Illinois to Shannon. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated January 21, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Illinois to Shannon as you normally would.

Rainfall in Shannon by month

Plan your trip to Shannon by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Shannon ranges from 2.3 - 4.1 inches per month. October is typically the wettest month, when rainfall can reach 4.1 in. April is typically the driest time to visit Shannon when rainfall is around 2.3 in.

Temperature in Shannon by month

Plan your trip to Shannon by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Shannon, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 60.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 42.8 F).

Reviews of airlines servicing Shannon

Get insights into the airlines that provide service to Shannon. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Shannon. Reviews last updated January 21, 2025.
Read reviews from past customers who have flown American Airlines, Air Canada and Aer Lingus from Illinois to Shannon. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Air France
7.4
Good
1,490 reviews

Comfort

7.4

Crew

8.1

Food

7.0

Overall

7.4

Boarding

7.4

Entertainment

7.0

Reviews

1 / 10

Why bother with the continental breakfast? It's so lack luster that it's not worth anyone's time.

Air France
7.4
Good
1,490 reviews
Air France
7.4
Good
1,490 reviews

Comfort

7.4

Crew

8.1

Food

7.0

Overall

7.4

Boarding

7.4

Entertainment

7.0

Reviews

1 / 10

Why bother with the continental breakfast? It's so lack luster that it's not worth anyone's time.

United Airlines
7.4
Good
8,984 reviews
Air France
7.4
Good
1,490 reviews

Comfort

7.4

Crew

8.1

Food

7.0

Overall

7.4

Boarding

7.4

Entertainment

7.0

Reviews

1 / 10

Why bother with the continental breakfast? It's so lack luster that it's not worth anyone's time.

American Airlines
7.2
Good
10,000 reviews
Air France
7.4
Good
1,490 reviews

Comfort

7.4

Crew

8.1

Food

7.0

Overall

7.4

Boarding

7.4

Entertainment

7.0

Reviews

1 / 10

Why bother with the continental breakfast? It's so lack luster that it's not worth anyone's time.

Aer Lingus
7.1
Good
1,082 reviews
Air France
7.4
Good
1,490 reviews

Comfort

7.4

Crew

8.1

Food

7.0

Overall

7.4

Boarding

7.4

Entertainment

7.0

Reviews

1 / 10

Why bother with the continental breakfast? It's so lack luster that it's not worth anyone's time.

Air Canada
7.0
Good
8,633 reviews
Air France
7.4
Good
1,490 reviews

Comfort

7.4

Crew

8.1

Food

7.0

Overall

7.4

Boarding

7.4

Entertainment

7.0

Reviews

1 / 10

Why bother with the continental breakfast? It's so lack luster that it's not worth anyone's time.

Related info for your journey

Find useful and relevant information for your journey from Illinois to Shannon. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Shannon from Illinois?

    Most people fly into Shannon (SNN) if they book a flight to Shannon from Illinois. Shannon is conveniently located just 2.1 mi from Shannon’s city center.

  • What are the cheapest airlines to fly from Illinois to Shannon one-way?

    For one-way options, check prices for Aer Lingus. According to our data, you can fly for as low as $474. Users have also found prices from $475 and $498 on American Airlines and United Airlines, respectively.

  • What are the most popular routes from Illinois to Shannon?

    When deciding which route to take from Illinois to Shannon consider Chicago O'Hare Intl - Shannon, Lambert-St Louis - Shannon or Chicago Midway - Shannon as they are the most popular.

  • What are the cheapest flights from Illinois to Shannon?

    While on average a flight from Illinois to Shannon is generally $743, our data shows the cheapest flight currently is $493. When looking at the most popular route, (Chicago O'Hare Intl - Shannon), you can expect to pay $625 for that flight.

  • Can I find deals for flights from Illinois to Shannon that include hotel bookings?

    Yes. In addition to deals on Illinois to Shannon flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Illinois to Shannon?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Illinois to Shannon.

  • Can I find deals for business class flights from Illinois to Shannon?

    Yes. Cheapflights offers flight deals from Illinois to Shannon by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Illinois to Shannon?

    Currently, February is the cheapest month in which you can book a flight from Illinois to Shannon (average of $533). Flying from Illinois to Shannon in June is currently the most expensive (average of $1,007). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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Alternative routes for Illinois to Shannon

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Top 3 airlines flying from Illinois to Shannon

Discover the top 3 airlines that operate flights from Illinois to Shannon. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated January 21, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$509Average$704FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$526Average$876FlexibilityNo cancel feeOn-time69%
British AirwaysCheapest$708Average$1,033FlexibilityNo cancel feeOn-time70%
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