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$183+ Cheap flights from Rochester, MN (RST) to Illinois

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/27. Fares are subject to change and may not be available on all flights or dates of travel.
RST — ORD
Feb 28 — Mar 71
Sat 2/28
Sat 3/7
1 adult, Economy
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Cheap 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 January 29, 2026.

This United Airlines deal was found by Cheapflights users on 1/27. 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.
Wed 5/278:20 am
RST
-
ORD
Nonstop1h 30m
United Airlines
Wed 6/39:00 am
ORD
-
RST
Nonstop1h 32m
United Airlines
Deal found 1/27$183
This American Airlines deal was found by Cheapflights users on 1/29. 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 2/135:00 am
RST
-
STL
1 stop3h 41m
American Airlines
Tue 2/176:00 am
STL
-
RST
1 stop4h 42m
American Airlines
Deal found 1/29$268
This United Airlines deal was found by Cheapflights users on 1/28. 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.
Thu 5/218:20 am
RST
-
ORD
Nonstop1h 30m
United Airlines
Tue 5/268:04 pm
ORD
-
RST
Nonstop1h 32m
United Airlines
Deal found 1/28$277
This United Airlines deal was found by Cheapflights users on 1/28. 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 6/303:15 pm
RST
-
ORD
Nonstop1h 27m
United Airlines
Sat 7/412:45 pm
ORD
-
RST
Nonstop1h 25m
United Airlines
Deal found 1/28$298
This Delta deal was found by Cheapflights users on 1/28. 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 2/286:30 am
RST
-
ORD
1 stop3h 55m
Delta
Tue 3/36:15 am
ORD
-
RST
1 stop16h 31m
Delta
Deal found 1/28$301
This American Airlines deal was found by Cheapflights users on 1/28. 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 2/285:00 am
RST
-
ORD
Nonstop1h 27m
American Airlines
Tue 3/39:20 am
ORD
-
RST
Nonstop1h 22m
American Airlines
Deal found 1/28$307
This Delta deal was found by Cheapflights users on 1/27. 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 5/277:00 am
RST
-
ORD
1 stop4h 29m
Delta
Wed 6/36:00 am
ORD
-
RST
1 stop4h 46m
Delta
Deal found 1/27$326
This United Airlines deal was found by Cheapflights users on 1/28. 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.
Wed 12/211:30 am
RST
-
ORD
Nonstop1h 29m
United Airlines
Wed 12/98:45 am
ORD
-
RST
Nonstop1h 28m
United Airlines
Deal found 1/28$330
This Delta deal was found by Cheapflights users on 1/28. 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 2/2511:42 am
RST
-
ORD
1 stop6h 19m
Delta
Tue 3/312:29 pm
ORD
-
RST
1 stop10h 17m
Delta
Deal found 1/28$333
This Delta deal was found by Cheapflights users on 1/28. 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 2/2711:42 am
RST
-
ORD
1 stop3h 37m
Delta
Tue 3/38:50 am
ORD
-
RST
1 stop7h 02m
Delta
Deal found 1/28$337
This Delta deal was found by Cheapflights users on 1/27. 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 6/57:00 am
RST
-
STL
2 stops6h 17m
Delta
Sun 6/76:30 am
STL
-
RST
1 stop4h 16m
Delta
Deal found 1/27$349
This Delta deal was found by Cheapflights users on 1/27. 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.
Sun 4/1911:32 am
RST
-
STL
1 stop5h 18m
Delta
Thu 4/236:20 am
STL
-
RST
1 stop4h 32m
Delta
Deal found 1/27$352

Find flight deals from Rochester to Illinois

Keep the following information in mind while searching for Rochester to Illinois flight deals. Data was last updated January 29, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$183
(United Airlines)

Popular in

October

Cheapest in

April

Average price

$429

Good round-trip deal

$334 or less

Good one-way deal

$253 or less
Provider with most accurate pricing for Rochester-Chicago (CHI) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Rochester-Chicago (CHI) flights.
Search Deals
From Rochester to Illinois
Search Deals
Highest demand for flights based on searches. 10% potential increase in price ($46 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($14 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals
Price to beat on a round-trip flight from Rochester to Illinois.
Search Deals
Price to beat on a one-way flight from Rochester to Illinois.
Search Deals

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 January 29, 2026.
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

Wed 5/27

8:20 am-9:50 am

Nonstop1h 30m

Chicago O'Hare Intl

Wed 6/3

9:00 am-10:32 am

Nonstop1h 32m

$183

RochesterSt. Louis

RST - STL

RSTSTL

Rochester

Fri 2/13

5:00 am-8:41 am

1 stop3h 41m

Lambert-St Louis

Tue 2/17

6:00 am-10:42 am

1 stop4h 42m

$268

RochesterChicago

RST - ORD

RSTORD

Rochester

Tue 6/30

3:15 pm-4:42 pm

Nonstop1h 27m

Chicago O'Hare Intl

Sat 7/4

8:45 am-10:10 am

Nonstop1h 25m

$298

RochesterChicago

RST - ORD

RSTORD

Rochester

Sat 2/28

6:30 am-10:25 am

1 stop3h 55m

Chicago O'Hare Intl

Tue 3/3

6:15 am-10:46 pm

1 stop16h 31m

$301

RochesterChicago

RST - ORD

RSTORD

Rochester

Sat 2/28

5:00 am-6:27 am

Nonstop1h 27m

Chicago O'Hare Intl

Tue 3/3

9:20 am-10:42 am

Nonstop1h 22m

$307

RochesterChicago

RST - ORD

RSTORD

Rochester

Wed 2/25

11:42 am-6:01 pm

1 stop6h 19m

Chicago O'Hare Intl

Tue 3/3

12:29 pm-10:46 pm

1 stop10h 17m

$333

RochesterChicago

RST - ORD

RSTORD

Rochester

Fri 2/27

11:42 am-3:19 pm

1 stop3h 37m

Chicago O'Hare Intl

Tue 3/3

8:50 am-3:52 pm

1 stop7h 02m

$337

RochesterChicago

RST - ORD

RSTORD

Rochester

Thu 2/26

6:30 am-6:01 pm

1 stop11h 31m

Chicago O'Hare Intl

Tue 3/3

8:50 am-3:52 pm

1 stop7h 02m

$342

RochesterChicago

RST - ORD

RSTORD

Rochester

Wed 4/1

12:38 pm-2:09 pm

Nonstop1h 31m

Chicago O'Hare Intl

Fri 4/10

4:35 pm-6:02 pm

Nonstop1h 27m

$343

RochesterSt. Louis

RST - STL

RSTSTL

Rochester

Fri 6/5

7:00 am-1:17 pm

2 stops6h 17m

Lambert-St Louis

Sun 6/7

6:30 am-10:46 am

1 stop4h 16m

$349

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/29

Showing 1-10 of 38 results
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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, December is the cheapest month in which you can book a flight from Rochester, Minnesota to Illinois (average of $54). Flying from Rochester, Minnesota to Illinois in July is currently the most expensive (average of $115). 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 January 29, 2026.

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 January 29, 2026.

The most flights from RST to USIL are scheduled on a Thursday (8 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (4 on average).

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 January 29, 2026.
Read through reviews of airlines operating flights from Rochester to Illinois, such as American Airlines. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
American Airlines
7.2
Good
11,206 reviews

Crew

8.0

Boarding

7.5

Comfort

7.2

Entertainment

6.9

Food

6.4

Overall

7.2

Reviews

1 / 20
2.0
Mediocre

Susie,Jan 2026

CLT - TPA

This flight was delayed 3 or 4 times. We had boarded the plane, sat on plane for a good 30 minutes, then we had to board the aircraft, walk to a different gate, wait and then board another aircraft. We arrived in Tampa 4 hours later than the original booking. I feel there should have been some sort of compensation especially for the advantage members.
American Airlines
7.2
Good
11,206 reviews
American Airlines
7.2
Good
11,206 reviews

Crew

8.0

Boarding

7.5

Comfort

7.2

Entertainment

6.9

Food

6.4

Overall

7.2

Reviews

1 / 20
2.0
Mediocre

Susie,Jan 2026

CLT - TPA

This flight was delayed 3 or 4 times. We had boarded the plane, sat on plane for a good 30 minutes, then we had to board the aircraft, walk to a different gate, wait and then board another aircraft. We arrived in Tampa 4 hours later than the original booking. I feel there should have been some sort of compensation especially for the advantage members.

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.

  • How long is the flight from Rochester, Minnesota to Illinois?

    For as low as $307, United Airlines can have you in Illinois from Rochester, Minnesota in 1h 27m. There are 268 mi between Rochester, Minnesota and Illinois. This flight may include one or multiple stops.

  • 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 - Lambert-St Louis.

  • 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 Envoy Air (67%), American Airlines (62%) and Qatar Airways (61%).

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

    On average you can expect to pay $445 for a flight from Rochester, Minnesota to Illinois. The cheapest flight overall is $183 while the most popular route, (Rochester - Chicago O'Hare Intl) is currently priced at $183.

  • 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, December is the cheapest month in which you can book a flight from Rochester, Minnesota to Illinois (average of $54). Flying from Rochester, Minnesota to Illinois in July is currently the most expensive (average of $115). 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

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Top airline flying from Rochester to Illinois

Discover the top airline 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 January 29, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$309Average$377FlexibilityNo cancel feeOn-time71%

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