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$205+ Cheap flights from Rochester, MN (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 7/9. Fares are subject to change and may not be available on all flights or dates of travel.
RST — ORD
Jun 28 — Jul 51
Sat 6/28
Sat 7/5
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 June 23, 2025.

Round-trip from

$279
(Delta)

One-way from

$205
(American Airlines)

Popular in

June

Cheapest in

October

Average price

$469

Good round-trip deal

$368 or less

Good one-way deal

$170 or less
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. 8% potential increase in price ($34 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($9 potential savings vs. average RT price).
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Average for round-trip flights in June 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 June 23, 2025.

This Delta deal was found by Cheapflights users on 6/22. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/2911:27 amRST - ORD
2 stops20h 22mDelta
Tue 8/52:00 pmORD - RST
2 stops20h 47mDelta
Deal found 6/22$279
This Delta deal was found by Cheapflights users on 6/22. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/2211:33 amRST - STL
1 stop5h 12mDelta
Tue 8/266:00 amSTL - RST
1 stop4h 53mDelta
Deal found 6/22$286
This American Airlines deal was found by Cheapflights users on 6/22. 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.
Fri 8/226:25 pmRST - STL
1 stop5h 26mAmerican Airlines
Tue 8/268:43 amSTL - RST
2 stops9h 28mAmerican Airlines
Deal found 6/22$292
This Delta deal was found by Cheapflights users on 6/21. 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.
Tue 7/2211:27 amRST - MDW
1 stop6h 12mDelta
Tue 7/297:21 pmMDW - RST
1 stop4h 06mDelta
Deal found 6/21$328
This American Airlines deal was found by Cheapflights users on 6/21. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/286:05 amRST - ORD
Nonstop1h 25mAmerican Airlines
Sat 8/3010:54 amORD - RST
Nonstop1h 24mAmerican Airlines
Deal found 6/21$329
This American Airlines deal was found by Cheapflights users on 6/20. 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.
Sat 12/611:12 amRST - SPI
1 stop6h 24mAmerican Airlines
Tue 12/96:36 pmSPI - RST
1 stop3h 11mAmerican Airlines
Deal found 6/20$452
This American Airlines deal was found by Cheapflights users on 6/20. 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 8/2012:48 pmRST - MLI
1 stop5h 00mAmerican Airlines
Sat 8/236:04 amMLI - RST
1 stop6h 14mAmerican Airlines
Deal found 6/20$460

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 June 23, 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 7/29

11:27 am-7:49 am

2 stops20h 22m

Chicago O'Hare Intl

Tue 8/5

2:00 pm-10:47 am

2 stops20h 47m

$279

RochesterSt. Louis

RST - STL

RSTSTL

Rochester

Fri 8/22

11:33 am-4:45 pm

1 stop5h 12m

Lambert-St Louis

Tue 8/26

6:00 am-10:53 am

1 stop4h 53m

$286

RochesterSt. Louis

RST - STL

RSTSTL

Rochester

Fri 8/22

6:25 pm-11:51 pm

1 stop5h 26m

Lambert-St Louis

Tue 8/26

8:43 am-6:11 pm

2 stops9h 28m

$292

RochesterChicago

RST - MDW

RSTMDW

Rochester

Tue 7/22

11:27 am-5:39 pm

1 stop6h 12m

Chicago Midway

Tue 7/29

7:21 pm-11:27 pm

1 stop4h 06m

$328

RochesterChicago

RST - ORD

RSTORD

Rochester

Thu 8/28

6:05 am-7:30 am

Nonstop1h 25m

Chicago O'Hare Intl

Sat 8/30

10:54 am-12:18 pm

Nonstop1h 24m

$329

RochesterSpringfield

RST - SPI

RSTSPI

Rochester

Sat 12/6

11:12 am-5:36 pm

1 stop6h 24m

Springfield Capital

Tue 12/9

6:36 pm-9:47 pm

1 stop3h 11m

$452

RochesterMoline

RST - MLI

RSTMLI

Rochester

Wed 8/20

12:48 pm-5:48 pm

1 stop5h 00m

Moline Quad-City

Sat 8/23

6:04 am-12:18 pm

1 stop6h 14m

$460

RochesterSt. Louis

RST - STL

RSTSTL

Rochester

Wed 7/9

2:25 pm-7:08 pm

1 stop4h 43m

$205

RochesterSt. Louis

RST - STL

RSTSTL

Rochester

Fri 7/4

7:00 am-10:32 am

1 stop3h 32m

$220

RochesterChicago

RST - ORD

RSTORD

Rochester

Sun 6/29

6:10 pm-7:36 pm

Nonstop1h 26m

$251

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/22

Showing 1-10 of 13 results
1
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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, Minnesota to Illinois?

Currently, August is the cheapest month in which you can book a flight from Rochester, Minnesota to Illinois (average of $245). Flying from Rochester, Minnesota 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 June 23, 2025.

When flying from Rochester, Minnesota 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, Minnesota 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 June 23, 2025.

The most flights from RST to USIL are scheduled on a Monday (6 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (6 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 June 23, 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
7,965 reviews

Comfort

7.9

Food

7.3

Crew

8.5

Overall

8.0

Entertainment

7.9

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,965 reviews
Delta
8.0
Very good
7,965 reviews

Comfort

7.9

Food

7.3

Crew

8.5

Overall

8.0

Entertainment

7.9

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,965 reviews

Comfort

7.9

Food

7.3

Crew

8.5

Overall

8.0

Entertainment

7.9

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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, Minnesota to Illinois?

    The most popular route from Rochester, Minnesota to Illinois is Rochester - Chicago O'Hare Intl. You may also consider Rochester - Chicago Midway or Rochester - Moline Quad-City.

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

    The top 3 most reliable airlines when flying from Rochester, Minnesota to Illinois are Qatar Airways (72%), SkyWest Airlines (65%) and American Airlines (65%).

  • What are the cheapest flights from Rochester, Minnesota to Illinois?

    On average you can expect to pay $346 for a flight from Rochester, Minnesota to Illinois. The cheapest flight overall is $153 while the most popular route, (Rochester - Chicago O'Hare Intl) is currently priced at $304.

  • 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, Minnesota to Illinois?

    Currently, August is the cheapest month in which you can book a flight from Rochester, Minnesota to Illinois (average of $245). Flying from Rochester, Minnesota 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 June 23, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$229Average$339FlexibilityNo cancel feeOn-time71%
DeltaCheapest$258Average$473FlexibilityNo cancel feeOn-timeN/A

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