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Shannon

$378+ 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 6/9. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — SNN
Apr 27 — May 41
Sun 4/27
Sun 5/4
1 adult, Economy
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Cheap flight deals from Illinois to Shannon

Keep the following information in mind while searching for Illinois to Shannon flight deals. Data was last updated April 22, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$562
(United Airlines)

One-way from

$378
(Mytrip)

Popular in

December

Cheapest in

September

Average price

$1,150

Good round-trip deal

$731 or less

Good one-way deal

$513 or less
Provider with most accurate pricing for Chicago (CHI)-Shannon flight deals.
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Provider most trusted by Cheapflights users for Chicago (CHI)-Shannon flights.
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From Illinois to Shannon
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One-way flight from Illinois to Shannon
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Highest demand for flights based on searches. 0% potential increase in price ($5 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($33 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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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 April 22, 2025.

This United Airlines deal was found by Cheapflights users on 4/21. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/56:05 pmORD - SNN
Nonstop7h 25mUnited Airlines
Wed 8/209:30 amSNN - ORD
Nonstop8h 15mUnited Airlines
Deal found 4/21$562
This American Airlines deal was found by Cheapflights users on 4/22. 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 5/78:30 pmORD - SNN
1 stop18h 05mAmerican Airlines
Thu 5/159:15 pmSNN - ORD
1 stop25h 45mAmerican Airlines
Deal found 4/22$609
This Delta deal was found by Cheapflights users on 4/21. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/156:10 pmORD - SNN
1 stop11h 00mDelta
Fri 8/221:05 pmSNN - ORD
1 stop29h 44mDelta
Deal found 4/21$633
This United Airlines deal was found by Cheapflights users on 4/21. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/71:20 pmSTL - SNN
1 stop12h 10mUnited Airlines
Fri 7/1812:30 pmSNN - STL
2 stops34h 01mUnited Airlines
Deal found 4/21$662
This KLM deal was found by Cheapflights users on 4/21. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/31:31 pmORD - SNN
1 stop15h 39mMultiple Airlines
Thu 9/111:05 pmSNN - ORD
1 stop13h 46mMultiple Airlines
Deal found 4/21$687
This KLM deal was found by Cheapflights users on 4/21. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/2511:23 amORD - SNN
2 stops17h 47mKLM
Tue 6/31:05 pmSNN - ORD
2 stops31h 42mKLM
Deal found 4/21$731
This Cheapflightsfares deal was found by Cheapflights users on 4/21. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/53:45 pmORD - SNN
2 stops13h 35mAer Lingus
Tue 8/199:15 pmSNN - ORD
2 stops22h 45mAer Lingus
Deal found 4/21$759
This Delta deal was found by Cheapflights users on 4/21. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/56:45 amSTL - SNN
2 stops22h 25mDelta
Thu 6/121:05 pmSNN - STL
2 stops25h 18mDelta
Deal found 4/21$780
This Expedia deal was found by Cheapflights users on 4/21. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/169:14 pmORD - SNN
2 stops32h 06mAir Canada
Sat 8/235:30 pmSNN - ORD
2 stops27h 21mAir Canada
Deal found 4/21$830
This British Airways deal was found by Cheapflights users on 4/21. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/176:35 pmORD - SNN
2 stops34h 45mBritish Airways
Sun 5/259:15 pmSNN - ORD
1 stop20h 30mBritish Airways
Deal found 4/21$850
This Air France deal was found by Cheapflights users on 4/22. 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.
Sun 6/225:59 pmORD - SNN
2 stops35h 11mAir France
Thu 7/31:05 pmSNN - ORD
2 stops16h 54mAir France
Deal found 4/22$873
This Mytrip deal was found by Cheapflights users on 4/21. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/59:40 amMDW - SNN
3 stops29h 10mMultiple Airlines
Thu 6/127:55 pmSNN - MDW
3 stops26h 59mMultiple Airlines
Deal found 4/21$910

Cheapflights Fare Finder

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 April 22, 2025.
Use the filters below to find and compare flights from Illinois to Shannon that are best for you.

Fly from

Illinois

Fly to

Shannon

Route

Depart

Return

Price

ChicagoShannon

ORD - SNN

ORDSNN

Chicago O'Hare Intl

Wed 5/7

8:30 pm-8:35 pm

1 stop18h 05m

Shannon

Thu 5/15

9:15 pm-5:00 pm

1 stop25h 45m

$609

St. LouisShannon

STL - SNN

STLSNN

Lambert-St Louis

Mon 7/7

1:20 pm-7:30 am

1 stop12h 10m

Shannon

Fri 7/18

12:30 pm-4:31 pm

2 stops34h 01m

$662

ChicagoShannon

ORD - SNN

ORDSNN

Chicago O'Hare Intl

Tue 5/27

6:05 pm-7:30 am

Nonstop7h 25m

Shannon

Thu 6/5

9:30 am-11:45 am

Nonstop8h 15m

$723

ChicagoShannon

ORD - SNN

ORDSNN

Chicago O'Hare Intl

Sun 5/25

11:23 am-11:10 am

2 stops17h 47m

Shannon

Tue 6/3

1:05 pm-2:47 pm

2 stops31h 42m

$731

ChicagoShannon

ORD - SNN

ORDSNN

Chicago O'Hare Intl

Thu 5/8

10:00 am-8:50 pm

3 stops28h 50m

Shannon

Tue 5/20

12:45 pm-5:25 am

3 stops46h 40m

$737

St. LouisShannon

STL - SNN

STLSNN

Lambert-St Louis

Thu 6/5

6:45 am-11:10 am

2 stops22h 25m

Shannon

Thu 6/12

1:05 pm-8:23 am

2 stops25h 18m

$780

ChicagoShannon

ORD - SNN

ORDSNN

Chicago O'Hare Intl

Sat 5/17

6:35 pm-11:20 am

2 stops34h 45m

Shannon

Sun 5/25

9:15 pm-11:45 am

1 stop20h 30m

$850

ChicagoShannon

ORD - SNN

ORDSNN

Chicago O'Hare Intl

Thu 5/8

9:15 pm-8:35 pm

2 stops17h 20m

Shannon

Tue 5/20

9:15 pm-7:00 pm

2 stops27h 45m

$858

ChicagoShannon

ORD - SNN

ORDSNN

Chicago O'Hare Intl

Sun 6/22

5:59 pm-11:10 am

2 stops35h 11m

Shannon

Thu 7/3

1:05 pm-11:59 pm

2 stops16h 54m

$873

ChicagoShannon

MDW - SNN

MDWSNN

Chicago Midway

Thu 6/5

9:40 am-8:50 pm

3 stops29h 10m

Shannon

Thu 6/12

7:55 pm-4:54 pm

3 stops26h 59m

$910

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/21

Showing 1-10 of 26 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.

Cheapflights Insights

Everything you need to know about your flight from Illinois to Shannon

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

Currently, February is the cheapest month in which you can book a flight from Illinois to Shannon, Clare (average of $533). Flying from Illinois to Shannon, Clare 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 April 22, 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, Clare 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, Clare 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, Clare 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, Clare, 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 April 22, 2025.
Read reviews from past customers who have flown Delta, KLM and Air France 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.
Delta
8.0
Very good
7,920 reviews

Entertainment

7.9

Food

7.3

Boarding

8.2

Overall

8.0

Crew

8.5

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Delta
8.0
Very good
7,920 reviews
Delta
8.0
Very good
7,920 reviews

Entertainment

7.9

Food

7.3

Boarding

8.2

Overall

8.0

Crew

8.5

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
KLM
7.8
Good
1,331 reviews
Delta
8.0
Very good
7,920 reviews

Entertainment

7.9

Food

7.3

Boarding

8.2

Overall

8.0

Crew

8.5

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Air France
7.4
Good
1,441 reviews
Delta
8.0
Very good
7,920 reviews

Entertainment

7.9

Food

7.3

Boarding

8.2

Overall

8.0

Crew

8.5

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
United Airlines
7.4
Good
8,683 reviews
Delta
8.0
Very good
7,920 reviews

Entertainment

7.9

Food

7.3

Boarding

8.2

Overall

8.0

Crew

8.5

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,920 reviews

Entertainment

7.9

Food

7.3

Boarding

8.2

Overall

8.0

Crew

8.5

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

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, Clare one-way?

    For one-way options, check prices for United Airlines. According to our data, you can fly for as low as $433. Users have also found prices from $579 and $588 on Delta and American Airlines, respectively.

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

    When deciding which route to take from Illinois to Shannon, Clare 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, Clare?

    While on average a flight from Illinois to Shannon, Clare is generally $3,728, our data shows the cheapest flight currently is $394. When looking at the most popular route, (Chicago O'Hare Intl - Shannon), you can expect to pay $562 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, Clare?

    Currently, February is the cheapest month in which you can book a flight from Illinois to Shannon, Clare (average of $533). Flying from Illinois to Shannon, Clare 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.

See more FAQs

Traveling to a place near Illinois?

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Top 2 airlines flying from Illinois to Shannon

Discover the top 2 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 April 22, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$509Average$750FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$526Average$834FlexibilityNo cancel feeOn-time69%

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