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$152+ Cheap flights from Rochester (ROC) 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 8/26. Fares are subject to change and may not be available on all flights or dates of travel.
ROC — ORD
Jun 28 — Jul 51
Sun 6/28
Sun 7/5
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 May 29, 2026.

This Delta deal was found by Cheapflights users on 5/25. 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 7/106:15 pm
ROC
-
MLI
1 stop5h 16m
Delta
Mon 7/135:10 pm
MLI
-
ROC
1 stop5h 38m
Delta
Deal found 5/25$309
This Delta deal was found by Cheapflights users on 5/25. 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 7/106:15 pm
ROC
-
MLI
1 stop5h 16m
Delta
Wed 7/155:56 am
MLI
-
ROC
2 stops10h 12m
Delta
Deal found 5/25$314
This United Airlines deal was found by Cheapflights users on 5/26. 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 7/86:20 am
ROC
-
STL
1 stop6h 51m
United Airlines
Wed 7/156:01 am
STL
-
ROC
1 stop4h 39m
United Airlines
Deal found 5/26$319
This American Airlines deal was found by Cheapflights users on 5/26. 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 9/26:00 am
ROC
-
STL
2 stops8h 02m
American Airlines
Wed 9/910:21 am
STL
-
ROC
1 stop5h 55m
American Airlines
Deal found 5/26$324
This American Airlines deal was found by Cheapflights users on 5/28. 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.
Thu 8/138:26 pm
ROC
-
MLI
1 stop4h 42m
American Airlines
Tue 8/1811:39 am
MLI
-
ROC
2 stops10h 24m
American Airlines
Deal found 5/28$329
This United Airlines deal was found by Cheapflights users on 5/27. 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.
Tue 8/47:10 pm
ROC
-
STL
1 stop5h 26m
United Airlines
Sat 8/84:53 pm
STL
-
ROC
1 stop5h 46m
United Airlines
Deal found 5/27$330
This American Airlines deal was found by Cheapflights users on 5/24. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/175:20 am
ROC
-
STL
1 stop5h 52m
American Airlines
Wed 7/16:15 am
STL
-
ROC
1 stop7h 37m
American Airlines
Deal found 5/24$331
This Delta deal was found by Cheapflights users on 5/25. 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 7/316:00 am
ROC
-
MLI
1 stop5h 12m
Delta
Sun 8/25:10 pm
MLI
-
ROC
1 stop5h 45m
Delta
Deal found 5/25$334
This Southwest deal was found by Cheapflights users on 5/28. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/233:20 pm
ROC
-
STL
1 stop6h 50m
Southwest
Sat 9/266:30 am
STL
-
ROC
2 stops8h 20m
Southwest
Deal found 5/28$335
This American Airlines deal was found by Cheapflights users on 5/25. 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 8/2511:06 am
ROC
-
STL
1 stop6h 19m
American Airlines
Tue 9/18:30 am
STL
-
ROC
2 stops7h 56m
American Airlines
Deal found 5/25$336
This Delta deal was found by Cheapflights users on 5/25. 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 7/116:00 am
ROC
-
MLI
1 stop5h 12m
Delta
Tue 7/1411:08 am
MLI
-
ROC
2 stops11h 15m
Delta
Deal found 5/25$339
This Delta deal was found by Cheapflights users on 5/25. 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 7/115:30 am
ROC
-
MLI
2 stops11h 52m
Delta
Wed 7/155:56 am
MLI
-
ROC
2 stops10h 12m
Delta
Deal found 5/25$344

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 May 29, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$309
(Delta)

One-way from

$152
(Kiwi.com)

Popular in

February

Cheapest in

September

Average price

$452

Good round-trip deal

$413 or less

Good one-way deal

$206 or less
Provider with most accurate pricing for Greater Rochester Intl-Chicago (CHI) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Greater Rochester Intl-Chicago (CHI) flights.
Search Deals
From Greater Rochester Intl to Illinois
Search Deals
One-way flight from Greater Rochester Intl to Illinois
Search Deals
Highest demand for flights based on searches. 4% potential increase in price ($18 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($6 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in May 2026
Search Deals
Price to beat on a round-trip flight from Greater Rochester Intl to Illinois.
Search Deals
Price to beat on a one-way flight from Greater Rochester Intl 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 May 29, 2026.
Use the filters below to find and compare flights from Rochester to Illinois that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

RochesterMoline

ROC - MLI

ROCMLI

Greater Rochester Intl

Fri 11/13

6:15 pm-10:30 pm

1 stop5h 15m

Moline Quad-City

Sun 11/15

5:00 pm-11:53 pm

1 stop5h 53m

$309

RochesterMoline

ROC - MLI

ROCMLI

Greater Rochester Intl

Thu 7/2

8:32 pm-12:41 am

1 stop5h 09m

Moline Quad-City

Fri 7/3

6:50 pm-12:16 am

1 stop4h 26m

$309

RochesterMoline

ROC - MLI

ROCMLI

Greater Rochester Intl

Fri 7/10

8:42 pm-12:41 am

1 stop4h 59m

Moline Quad-City

Mon 7/13

6:50 pm-11:56 pm

1 stop4h 06m

$309

RochesterMoline

ROC - MLI

ROCMLI

Greater Rochester Intl

Mon 6/22

6:21 pm-10:34 pm

1 stop5h 13m

Moline Quad-City

Mon 6/29

5:56 am-5:08 pm

2 stops10h 12m

$314

RochesterSt. Louis

ROC - STL

ROCSTL

Greater Rochester Intl

Wed 7/8

6:20 am-12:11 pm

1 stop6h 51m

Lambert-St Louis

Wed 7/15

6:01 am-11:40 am

1 stop4h 39m

$319

RochesterSt. Louis

ROC - STL

ROCSTL

Greater Rochester Intl

Wed 9/23

3:20 pm-9:10 pm

1 stop6h 50m

Lambert-St Louis

Sat 9/26

5:45 am-11:45 am

1 stop5h 00m

$330

RochesterSt. Louis

ROC - STL

ROCSTL

Greater Rochester Intl

Wed 7/22

6:16 am-9:31 am

1 stop4h 15m

Lambert-St Louis

Sun 7/26

6:30 am-11:45 am

1 stop4h 15m

$353

RochesterSt. Louis

ROC - STL

ROCSTL

Greater Rochester Intl

Mon 8/3

5:50 pm-10:50 pm

2 stops6h 00m

Lambert-St Louis

Thu 8/6

4:15 pm-10:05 pm

1 stop4h 50m

$379

RochesterMoline

ROC - MLI

ROCMLI

Greater Rochester Intl

Sat 11/7

10:45 am-3:05 pm

1 stop5h 20m

Moline Quad-City

Wed 11/11

10:35 am-4:45 pm

1 stop5h 10m

$389

RochesterSt. Louis

ROC - STL

ROCSTL

Greater Rochester Intl

Thu 7/16

7:35 pm-10:55 pm

1 stop4h 20m

Lambert-St Louis

Thu 7/23

4:25 pm-12:20 am

2 stops6h 55m

$392

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/26

Showing 1-10 of 60 resultsSorted by cheapest first
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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 to Illinois?

Currently, February is the cheapest month in which you can book a flight from Rochester to Illinois (average of $75). Flying from Rochester to Illinois in March is currently the most expensive (average of $287). 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 ROC 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 May 29, 2026.

It’s optimal to fly from Rochester to Illinois in the afternoon. By choosing this option you can save up to 31% on the cost of your flight, compared to a flight at noon.

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 May 29, 2026.

The most flights from ROC to USIL are scheduled on a Monday (25 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (16 on average).

How much does it cost to fly round-trip from Rochester to Illinois?

How far ahead should I book a flight from Rochester to Illinois?

The best time to book flights from Rochester to Illinois is 63 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest day to fly from Rochester to Illinois?

Use this chart to determine the cheapest time to fly round-trip from Rochester to Illinois. Price data was last updated on May 23, 2026.

Travelers seeking maximum savings on their Rochester to Illinois flight should consider departing on Tuesday evenings when fares are most often at their lowest. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

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 May 29, 2026.
Get a feel of what it's like to fly with Southwest,United Airlines, andAmerican Airlines from Rochester to Illinois by reading reviews from past customers. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,264 reviews

Boarding

8.1

Entertainment

7.5

Food

7.0

Comfort

8.0

Overall

8.0

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
Southwest
8.0
Very good
4,264 reviews
Southwest
8.0
Very good
4,264 reviews

Boarding

8.1

Entertainment

7.5

Food

7.0

Comfort

8.0

Overall

8.0

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
United Airlines
7.4
Good
9,763 reviews
Southwest
8.0
Very good
4,264 reviews

Boarding

8.1

Entertainment

7.5

Food

7.0

Comfort

8.0

Overall

8.0

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
American Airlines
7.1
Good
11,643 reviews
Southwest
8.0
Very good
4,264 reviews

Boarding

8.1

Entertainment

7.5

Food

7.0

Comfort

8.0

Overall

8.0

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.

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?

    If you book a flight to Illinois from Rochester, you will be flying from Greater Rochester Intl, which is the city’s only airport. Greater Rochester Intl (ROC) is located 3.8 mi from the center of Rochester.

  • How long is the flight from Rochester to Illinois?

    Delta, American Airlines, and United Airlines can get you from Rochester to Illinois in just under 5h 09m. Your travel time can differ by up to 1h 42m. Rochester and Illinois are separated by a distance of 665 mi. This flight may include one or multiple stops.

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

    To fly one-way, consider booking your trip with Southwest, which is currently one of the cheapest options available, starting at $108. American Airlines flights start at $123 while deals on United Airlines start at $134 one-way.

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

    While some choose either Greater Rochester Intl - Chicago Midway or Greater Rochester Intl - Lambert-St Louis, Greater Rochester Intl - Chicago O'Hare Intl is the most popular route from Rochester to Illinois.

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

    The top 3 most reliable airlines when flying from Rochester to Illinois are Republic Airways (92%), ANA (85%) and Finnair (84%).

  • What are the cheapest flights from Rochester to Illinois?

    On average you can expect to pay $914 for a flight from Rochester to Illinois. The cheapest flight overall is $159 while the most popular route, (Greater Rochester Intl - Chicago O'Hare Intl) is currently priced at $390.

  • 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, February is the cheapest month in which you can book a flight from Rochester to Illinois (average of $75). Flying from Rochester to Illinois in March is currently the most expensive (average of $287). 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 Rochester to Illinois

See prices for flight routes from nearby airports that may be better suited for you.
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Top 3 airlines flying from Rochester to Illinois

Discover the top 3 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 May 29, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$259Average$413FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$283Average$433FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$305Average$411FlexibilityNo cancel feeOn-time63%

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