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$74+ 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 10/20. Fares are subject to change and may not be available on all flights or dates of travel.
ROC — ORD
Aug 16 — Aug 231
Sat 8/16
Sat 8/23
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 August 11, 2025.

Round-trip from

$209
(Southwest)

One-way from

$74
(Mytrip)

Popular in

July

Cheapest in

January

Average price

$353

Good round-trip deal

$295 or less

Good one-way deal

$151 or less
From Rochester Greater Rochester Intl to Illinois
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One-way flight from Rochester Greater Rochester Intl to Illinois
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Highest demand for flights based on searches. 8% potential increase in price ($31 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($5 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Price to beat on a round-trip flight from Rochester Greater Rochester Intl to Illinois.
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Price to beat on a one-way flight from Rochester Greater Rochester Intl 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 August 11, 2025.

This Southwest deal was found by Cheapflights users on 8/10. 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.
Tue 9/99:00 amROC - STL
1 stop4h 35mSouthwest
Tue 9/167:00 amSTL - ROC
1 stop7h 10mSouthwest
Deal found 8/10$209
This FlightHub deal was found by Cheapflights users on 8/9. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/26:40 amROC - ORD
1 stop16h 42mSpirit Airlines
Thu 9/45:17 pmORD - ROC
1 stop18h 35mSpirit Airlines
Deal found 8/9$219
This United Airlines deal was found by Cheapflights users on 8/11. 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.
Sat 9/67:50 pmROC - ORD
2 stops13h 15mUnited Airlines
Sun 9/710:35 amORD - ROC
Nonstop1h 56mUnited Airlines
Deal found 8/11$222
This Kiwi.com deal was found by Cheapflights users on 8/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/121:47 pmROC - ORD
1 stop9h 11mSpirit Airlines
Sun 9/145:17 pmORD - ROC
1 stop18h 35mSpirit Airlines
Deal found 8/10$223
This FlightHub deal was found by Cheapflights users on 8/9. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/15:34 pmROC - ORD
1 stop29h 48mSpirit Airlines
Thu 9/45:17 pmORD - ROC
1 stop18h 35mSpirit Airlines
Deal found 8/9$224
This Delta deal was found by Cheapflights users on 8/11. 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 9/306:00 amROC - STL
1 stop4h 59mDelta
Thu 10/29:19 amSTL - ROC
1 stop7h 04mDelta
Deal found 8/11$227
This FlightHub deal was found by Cheapflights users on 8/9. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/251:47 pmROC - ORD
1 stop9h 11mSpirit Airlines
Sat 9/2711:57 amORD - ROC
1 stop22h 12mSpirit Airlines
Deal found 8/9$228
This Expedia deal was found by Cheapflights users on 8/9. 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.
Tue 10/286:00 amROC - ORD
2 stops12h 55mJetBlue
Fri 10/316:45 amORD - ROC
1 stop7h 25mJetBlue
Deal found 8/9$232
This Priceline deal was found by Cheapflights users on 8/10. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/256:40 amROC - ORD
1 stop10h 30mSpirit Airlines
Fri 8/296:56 amORD - ROC
1 stop8h 43mSpirit Airlines
Deal found 8/10$233
This FlightHub deal was found by Cheapflights users on 8/10. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/51:47 pmROC - ORD
1 stop9h 11mSpirit Airlines
Sun 9/712:05 pmORD - ROC
1 stop23h 47mSpirit Airlines
Deal found 8/10$235
This Mytrip deal was found by Cheapflights users on 8/11. 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.
Mon 9/221:47 pmROC - ORD
3 stops28h 52mMultiple Airlines
Thu 9/255:17 pmORD - ROC
2 stops17h 58mMultiple Airlines
Deal found 8/11$236
This JetBlue deal was found by Cheapflights users on 8/9. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/314:05 pmROC - ORD
1 stop6h 43mJetBlue
Sun 11/25:45 amORD - ROC
1 stop7h 25mJetBlue
Deal found 8/9$237

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 August 11, 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

RochesterSt. Louis

ROC - STL

ROCSTL

Rochester Greater Rochester Intl

Tue 9/9

9:00 am-12:35 pm

1 stop4h 35m

Lambert-St Louis

Tue 9/16

7:00 am-3:10 pm

1 stop7h 10m

$209

RochesterChicago

ROC - ORD

ROCORD

Rochester Greater Rochester Intl

Tue 9/2

6:40 am-10:22 pm

1 stop16h 42m

Chicago O'Hare Intl

Thu 9/4

5:17 pm-12:52 pm

1 stop18h 35m

$219

RochesterChicago

ROC - ORD

ROCORD

Rochester Greater Rochester Intl

Sat 9/6

7:50 pm-8:05 am

2 stops13h 15m

Chicago O'Hare Intl

Sun 9/7

10:35 am-1:31 pm

Nonstop1h 56m

$222

RochesterChicago

ROC - ORD

ROCORD

Rochester Greater Rochester Intl

Fri 9/12

9:35 am-5:39 pm

3 stops33h 04m

Chicago O'Hare Intl

Sun 9/14

11:57 am-12:15 pm

2 stops23h 18m

$223

RochesterChicago

ROC - ORD

ROCORD

Rochester Greater Rochester Intl

Mon 9/1

5:34 pm-10:22 pm

1 stop29h 48m

Chicago O'Hare Intl

Thu 9/4

5:17 pm-12:52 pm

1 stop18h 35m

$224

RochesterSt. Louis

ROC - STL

ROCSTL

Rochester Greater Rochester Intl

Tue 9/30

6:00 am-9:59 am

1 stop4h 59m

Lambert-St Louis

Thu 10/2

9:19 am-5:23 pm

1 stop7h 04m

$227

RochesterChicago

ROC - ORD

ROCORD

Rochester Greater Rochester Intl

Thu 9/25

1:47 pm-9:58 pm

1 stop9h 11m

Chicago O'Hare Intl

Sat 9/27

11:57 am-11:09 am

1 stop22h 12m

$228

RochesterChicago

ROC - ORD

ROCORD

Rochester Greater Rochester Intl

Tue 10/28

6:00 am-5:55 pm

2 stops12h 55m

Chicago O'Hare Intl

Fri 10/31

6:45 am-3:10 pm

1 stop7h 25m

$232

RochesterChicago

ROC - ORD

ROCORD

Rochester Greater Rochester Intl

Mon 8/25

6:40 am-4:10 pm

1 stop10h 30m

Chicago O'Hare Intl

Fri 8/29

6:56 am-4:39 pm

1 stop8h 43m

$233

RochesterChicago

ROC - ORD

ROCORD

Rochester Greater Rochester Intl

Fri 9/5

1:47 pm-9:58 pm

1 stop9h 11m

Chicago O'Hare Intl

Sun 9/7

12:05 pm-12:52 pm

1 stop23h 47m

$235

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/10

Showing 1-10 of 56 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 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 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 August 11, 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 August 11, 2025.

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?

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 August 11, 2025.
Get a feel of what it's like to fly with Southwest, Delta, and United 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
4,248 reviews

Food

7.0

Boarding

8.1

Entertainment

7.5

Overall

8.0

Crew

8.6

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
Southwest
8.0
Very good
4,248 reviews
Southwest
8.0
Very good
4,248 reviews

Food

7.0

Boarding

8.1

Entertainment

7.5

Overall

8.0

Crew

8.6

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
Delta
8.0
Very good
7,979 reviews
Southwest
8.0
Very good
4,248 reviews

Food

7.0

Boarding

8.1

Entertainment

7.5

Overall

8.0

Crew

8.6

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
United Airlines
7.4
Good
8,920 reviews
Southwest
8.0
Very good
4,248 reviews

Food

7.0

Boarding

8.1

Entertainment

7.5

Overall

8.0

Crew

8.6

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,248 reviews

Food

7.0

Boarding

8.1

Entertainment

7.5

Overall

8.0

Crew

8.6

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
JetBlue
7.2
Good
2,916 reviews
Southwest
8.0
Very good
4,248 reviews

Food

7.0

Boarding

8.1

Entertainment

7.5

Overall

8.0

Crew

8.6

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.

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. Rochester Greater Rochester Intl (ROC) is located 3.8 mi from the center of Rochester.

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

    While some choose either Rochester Greater Rochester Intl - Chicago Midway or Rochester Greater Rochester Intl - Lambert-St Louis, Rochester 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 Japan Airlines (93%), ANA (81%) and Republic Airways (77%).

  • What are the cheapest flights from Rochester to Illinois?

    On average you can expect to pay $847 for a flight from Rochester to Illinois. The cheapest flight overall is $118 while the most popular route, (Rochester Greater Rochester Intl - Chicago O'Hare Intl) is currently priced at $187.

  • 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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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 August 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$196Average$455FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$209Average$339FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$287Average$378FlexibilityNo cancel feeOn-time63%

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