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$128+ Cheap flights from Rochester (RST) to Illinois

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 5/25. Fares are subject to change and may not be available on all flights or dates of travel.
RST — ORD
Apr 29 — May 61
Tue 4/29
Tue 5/6
1 adult, Economy
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Cheap flight deals from Rochester to Illinois

Keep the following information in mind while searching for Rochester to Illinois flight deals. Data was last updated April 24, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$309
(American Airlines)

One-way from

$128
(Delta)

Popular in

June

Cheapest in

October

Average price

$339

Good round-trip deal

$345 or less

Good one-way deal

$198 or less
Provider with most accurate pricing for Rochester-Chicago (CHI) flight deals.
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Provider most trusted by Cheapflights users for Rochester-Chicago (CHI) flights.
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From Rochester to Illinois
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One-way flight from Rochester to Illinois
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Highest demand for flights based on searches. 18% potential increase in price ($88 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($13 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 Rochester to Illinois.
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Price to beat on a one-way flight from Rochester to Illinois.
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Find flight deals from Rochester to Illinois

Cheapest flights from Rochester to Illinois
Explore the most affordable flight options available from Rochester to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 24, 2025.

This American Airlines deal was found by Cheapflights users on 4/23. 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.
Tue 7/11:24 pmRST - ORD
Nonstop1h 18mAmerican Airlines
Tue 7/810:16 pmORD - RST
Nonstop1h 19mAmerican Airlines
Deal found 4/23$309
This Delta deal was found by Cheapflights users on 4/24. 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.
Wed 7/97:00 amRST - STL
1 stop4h 32mDelta
Wed 7/166:30 amSTL - RST
1 stop4h 15mDelta
Deal found 4/24$314
This Delta deal was found by Cheapflights users on 4/23. 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.
Tue 7/11:20 pmRST - ORD
1 stop3h 26mDelta
Tue 7/85:20 pmORD - RST
1 stop6h 07mDelta
Deal found 4/23$328
This Delta deal was found by Cheapflights users on 4/23. 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 6/2011:27 amRST - MDW
1 stop6h 13mDelta
Sat 6/217:21 pmMDW - RST
1 stop4h 08mDelta
Deal found 4/23$343

Cheapflights Fare Finder

Customize your flight search to find flights from Rochester to Illinois 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 24, 2025.
Use the filters below to find and compare flights from Rochester to Illinois that are best for you.

Fly from

Rochester

Fly to

Illinois

Route

Depart

Return

Price

RochesterChicago

RST - ORD

RSTORD

Rochester

Tue 7/1

1:24 pm-2:42 pm

Nonstop1h 18m

Chicago O'Hare Intl

Tue 7/8

10:16 pm-11:35 pm

Nonstop1h 19m

$309

RochesterSt. Louis

RST - STL

RSTSTL

Rochester

Wed 7/9

7:00 am-11:32 am

1 stop4h 32m

Lambert-St Louis

Wed 7/16

6:30 am-10:45 am

1 stop4h 15m

$314

RochesterChicago

RST - ORD

RSTORD

Rochester

Tue 7/1

1:20 pm-4:46 pm

1 stop3h 26m

Chicago O'Hare Intl

Tue 7/8

5:20 pm-11:27 pm

1 stop6h 07m

$328

RochesterChicago

RST - MDW

RSTMDW

Rochester

Fri 6/20

11:27 am-5:40 pm

1 stop6h 13m

Chicago Midway

Sat 6/21

7:21 pm-11:29 pm

1 stop4h 08m

$343

RochesterChicago

RST - ORD

RSTORD

Rochester

Sun 5/25

4:44 pm-12:41 pm

2 stops19h 57m

$128

RochesterChicago

RST - ORD

RSTORD

Rochester

Tue 5/20

3:09 pm-4:31 pm

Nonstop1h 22m

$345

RochesterChicago

RST - MDW

RSTMDW

Rochester

Sat 5/10

6:13 am-12:28 pm

2 stops6h 15m

$360

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/23

Best time to book a flight from Rochester to Illinois

Have a flexible travel schedule? Discover the best time to fly to Illinois from Rochester 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 Rochester to Illinois

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

Currently, August is the cheapest month in which you can book a flight from Rochester to Illinois (average of $245). Flying from Rochester to Illinois in March is currently the most expensive (average of $321). 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 RST to IL?

Find hourly flight availability from Rochester to Illinois. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 24, 2025.

When flying from Rochester to Illinois, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Weekly flight availability from Rochester to Illinois

Explore weekly flight availability from Rochester to Illinois. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated April 24, 2025.

The most flights from RST to USIL are scheduled on a Monday (9 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (2 on average).

Rainfall in Illinois by month

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

In terms of precipitation, rainfall in Illinois ranges from 1.7 - 4.9 inches per month. August is typically the wettest month, when rainfall can reach 4.9 in. January is typically the driest time to visit Illinois when rainfall is around 1.7 in.

Temperature in Illinois by month

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

If weather is an important factor for your trip to Illinois, 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 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 23.0 F).

Reviews of airlines servicing Illinois

Get insights into the airlines that provide service to Illinois. 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 Illinois. Reviews last updated April 24, 2025.
To help decide which airline to fly from Rochester to Illinois, see what other customers have to say about Delta and American Airlines. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,920 reviews

Entertainment

7.9

Comfort

7.9

Crew

8.5

Boarding

8.2

Food

7.3

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Delta
8.0
Very good
7,920 reviews
Delta
8.0
Very good
7,920 reviews

Entertainment

7.9

Comfort

7.9

Crew

8.5

Boarding

8.2

Food

7.3

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,920 reviews

Entertainment

7.9

Comfort

7.9

Crew

8.5

Boarding

8.2

Food

7.3

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Related info for your journey

Find useful and relevant information for your journey from Rochester to Illinois. 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 from for flights from Rochester to Illinois?

    Rochester (RST), located 7.0 mi from the city center, is the airport you fly out of when you book flights from Rochester to Illinois.

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

    The most popular route from Rochester to Illinois is Rochester - Chicago O'Hare Intl. You may also consider Rochester - Chicago Midway or Rochester - Lambert-St Louis.

  • What are the most reliable airlines from Rochester to Illinois?

    The top 3 most reliable airlines when flying from Rochester to Illinois are Piedmont Airlines (82%), American Airlines (77%) and SkyWest Airlines (75%).

  • What are the cheapest flights from Rochester to Illinois?

    On average you can expect to pay $550 for a flight from Rochester to Illinois. The cheapest flight overall is $119 while the most popular route, (Rochester - Chicago O'Hare Intl) is currently priced at $296.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Rochester to Illinois 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 Rochester to Illinois?

    Currently, August is the cheapest month in which you can book a flight from Rochester to Illinois (average of $245). Flying from Rochester to Illinois in March is currently the most expensive (average of $321). 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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Top 2 airlines flying from Rochester to Illinois

Discover the top 2 airlines that operate flights from Rochester to Illinois. 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 24, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$229Average$343FlexibilityNo cancel feeOn-time71%
DeltaCheapest$258Average$473FlexibilityNo cancel feeOn-timeN/A

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