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Cheap flights from Rochester to Illinois from $91

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Rochester to Illinois departing on 9/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Find the cheapest flights from Rochester to Illinois

Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
5:30 pm - 8:35 pmROC  Greater Rochester Intl-STL Lambert-St Louis
4h 05m1 stop Detroit Metropolitan Wayne County
Delta Logo
4:10 pm - 10:54 pmSTL  Lambert-St Louis-ROC Greater Rochester Intl
5h 44m1 stop Detroit Metropolitan Wayne County
$255Delta
Tue, Sep 15 - Sat, Sep 19
American Airlines Logo
10:44 am - 5:05 pmROC  Greater Rochester Intl-STL Lambert-St Louis
7h 21m1 stop Philadelphia
American Airlines Logo
5:18 pm - 11:59 pmSTL  Lambert-St Louis-ROC Greater Rochester Intl
5h 41m1 stop Chicago O'Hare Intl
$255American Airlines
Thu, Sep 10 - Mon, Sep 14
American Airlines Logo
12:25 pm - 5:24 pmROC  Greater Rochester Intl-STL Lambert-St Louis
5h 59m1 stop Boston Logan Intl
American Airlines Logo
5:00 am - 11:02 amSTL  Lambert-St Louis-ROC Greater Rochester Intl
5h 02m1 stop Chicago O'Hare Intl
$255American Airlines
Tue, Sep 15 - Sat, Sep 19
Delta Logo
5:30 pm - 8:35 pmROC  Greater Rochester Intl-STL Lambert-St Louis
4h 05m1 stop Detroit Metropolitan Wayne County
Delta Logo
5:59 pm - 10:54 pmSTL  Lambert-St Louis-ROC Greater Rochester Intl
3h 55m1 stop Detroit Metropolitan Wayne County
$289Delta
Mon, Sep 14 - Fri, Sep 18
United Airlines Logo
6:20 am - 7:28 amROC  Greater Rochester Intl-ORD Chicago O'Hare Intl
2h 08mnonstop
United Airlines Logo
1:55 pm - 4:43 pmORD  Chicago O'Hare Intl-ROC Greater Rochester Intl
1h 48mnonstop
$304United Airlines
Tue, Oct 6 - Fri, Oct 16
United Airlines Logo
10:40 am - 11:53 amROC  Greater Rochester Intl-ORD Chicago O'Hare Intl
2h 13mnonstop
United Airlines Logo
6:55 am - 9:54 amORD  Chicago O'Hare Intl-ROC Greater Rochester Intl
1h 59mnonstop
$304United Airlines
Fri, Oct 2 - Mon, Oct 5
Southwest Logo
7:15 pm - 8:05 pmROC  Greater Rochester Intl-MDW Chicago Midway
1h 50mnonstop
Southwest Logo
8:00 am - 10:45 amMDW  Chicago Midway-ROC Greater Rochester Intl
1h 45mnonstop
$304Southwest
Fri, Oct 2 - Mon, Oct 5
Southwest Logo
6:40 pm - 7:30 pmROC  Greater Rochester Intl-MDW Chicago Midway
1h 50mnonstop
Southwest Logo
8:00 am - 10:45 amMDW  Chicago Midway-ROC Greater Rochester Intl
1h 45mnonstop
$304Southwest
Tue, Oct 6 - Fri, Oct 16
Multiple Airlines Logo
7:53 pm - 3:36 pmROC  Greater Rochester Intl-ORD Chicago O'Hare Intl
20h 43m1 stop Fort Lauderdale
Multiple Airlines Logo
6:00 am - 6:15 pmORD  Chicago O'Hare Intl-ROC Greater Rochester Intl
35h 15m2 stops Atlanta Hartsfield-Jackson Tampa
$304Multiple Airlines
Thu, Oct 8 - Tue, Oct 13
Multiple Airlines Logo
8:03 pm - 3:24 pmROC  Greater Rochester Intl-ORD Chicago O'Hare Intl
20h 21m1 stop Fort Lauderdale
Multiple Airlines Logo
6:30 am - 6:43 pmORD  Chicago O'Hare Intl-ROC Greater Rochester Intl
11h 13m2 stops Atlanta Hartsfield-Jackson Raleigh-Durham
$311Multiple Airlines
Thu, Oct 29 - Sat, Nov 7

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American Airlines flights from Rochester to Illinois

Our best American Airlines deals on Rochester to Illinois flight tickets
American Airlines
Sep 10
ROC10:44 amGreater Rochester Intl
7h 21m
1 stop
STL5:05 pmLambert-St Louis
Sep 14
STL5:18 pmLambert-St Louis
5h 41m
1 stop
ROC11:59 pmGreater Rochester Intl
$257
American Airlines
Oct 10
ROC5:00 amGreater Rochester Intl
6h 50m
1 stop
STL10:50 amLambert-St Louis
Oct 12
STL5:08 pmLambert-St Louis
5h 19m
1 stop
ROC11:27 pmGreater Rochester Intl
$280
American Airlines
Sep 4
ROC11:29 amGreater Rochester Intl
2h 06m
ORD12:35 pmChicago O'Hare Intl
Sep 5
ORD8:05 amChicago O'Hare Intl
1h 54m
ROC10:59 amGreater Rochester Intl
$304

Delta flights from Rochester to Illinois

Our best Delta deals on Rochester to Illinois flight tickets
Delta
Sep 15
ROC5:30 pmGreater Rochester Intl
4h 05m
1 stop
STL8:35 pmLambert-St Louis
Sep 19
STL4:10 pmLambert-St Louis
5h 44m
1 stop
ROC10:54 pmGreater Rochester Intl
$255
Delta
Sep 14
ROC5:30 pmGreater Rochester Intl
4h 05m
1 stop
STL8:35 pmLambert-St Louis
Sep 18
STL5:59 pmLambert-St Louis
3h 55m
1 stop
ROC10:54 pmGreater Rochester Intl
$289
Delta
Sep 14
ROC5:30 pmGreater Rochester Intl
4h 05m
1 stop
STL8:35 pmLambert-St Louis
Sep 18
STL5:59 pmLambert-St Louis
3h 55m
1 stop
ROC10:54 pmGreater Rochester Intl
$292

momondo 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, momondo users made 832,500 searches. Data last updated August 13, 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

RochesterSt. Louis

ROC Greater Rochester Intl - STL Lambert-St Louis

ROCSTL

Greater Rochester Intl

Tue 9/15

5:30 pm-8:35 pm

1 stop4h 05m

Lambert-St Louis

Sat 9/19

4:10 pm-10:54 pm

1 stop5h 44m

$255

RochesterSt. Louis

ROC Greater Rochester Intl - STL Lambert-St Louis

ROCSTL

Greater Rochester Intl

Thu 9/10

10:44 am-5:05 pm

1 stop7h 21m

Lambert-St Louis

Mon 9/14

5:18 pm-11:59 pm

1 stop5h 41m

$255

RochesterSt. Louis

ROC Greater Rochester Intl - STL Lambert-St Louis

ROCSTL

Greater Rochester Intl

Tue 9/15

12:25 pm-5:24 pm

1 stop5h 59m

Lambert-St Louis

Sat 9/19

5:00 am-11:02 am

1 stop5h 02m

$255

RochesterSt. Louis

ROC Greater Rochester Intl - STL Lambert-St Louis

ROCSTL

Greater Rochester Intl

Mon 9/14

5:30 pm-8:35 pm

1 stop4h 05m

Lambert-St Louis

Fri 9/18

5:59 pm-10:54 pm

1 stop3h 55m

$289

RochesterChicago

ROC Greater Rochester Intl - ORD Chicago O'Hare Intl

ROCORD

Greater Rochester Intl

Tue 10/6

6:20 am-7:28 am

Nonstop2h 08m

Chicago O'Hare Intl

Fri 10/16

1:55 pm-4:43 pm

Nonstop1h 48m

$304

RochesterChicago

ROC Greater Rochester Intl - ORD Chicago O'Hare Intl

ROCORD

Greater Rochester Intl

Fri 10/2

10:40 am-11:53 am

Nonstop2h 13m

Chicago O'Hare Intl

Mon 10/5

6:55 am-9:54 am

Nonstop1h 59m

$304
Quickest round-trip

RochesterChicago

ROC Greater Rochester Intl - MDW Chicago Midway

ROCMDW

Greater Rochester Intl

Fri 10/2

7:15 pm-8:05 pm

Nonstop1h 50m

Chicago Midway

Mon 10/5

8:00 am-10:45 am

Nonstop1h 45m

$304

RochesterChicago

ROC Greater Rochester Intl - MDW Chicago Midway

ROCMDW

Greater Rochester Intl

Tue 10/6

6:40 pm-7:30 pm

Nonstop1h 50m

Chicago Midway

Fri 10/16

8:00 am-10:45 am

Nonstop1h 45m

$304

RochesterChicago

ROC Greater Rochester Intl - ORD Chicago O'Hare Intl

ROCORD

Greater Rochester Intl

Thu 10/8

7:53 pm-3:36 pm

1 stop20h 43m

Chicago O'Hare Intl

Tue 10/13

6:00 am-6:15 pm

2 stops35h 15m

$304

RochesterChicago

ROC Greater Rochester Intl - ORD Chicago O'Hare Intl

ROCORD

Greater Rochester Intl

Thu 10/29

8:03 pm-3:24 pm

1 stop20h 21m

Chicago O'Hare Intl

Sat 11/7

6:30 am-6:43 pm

2 stops11h 13m

$311

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Illinois from

How to get the cheapest flight ticket from Rochester to Illinois

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Illinois?

The cheapest month to fly to Illinois from Rochester is in September. Flight prices, which tend to average around $382, are often lower during this time because this is during the off-season. If you aren’t able to travel to Illinois during the month of September, then flying in April is also cheap. Prices for this month can be found on momondo for an average of $394.

What is the cheapest day to depart on your flight to Illinois?

The cheapest day to depart from Rochester to Illinois is on a Wednesday when prices can be found for as low as $436. Flights from Rochester to Illinois on a Sunday will generally be more expensive and average around $554. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Illinois?

Our most recent data shows that the best time of day to fly to Illinois is in the afternoon. Flights from Rochester to Illinois during this time can be as low as $430. Flights in the morning are often more expensive with an average ticket price of $482.

What is the cheapest Greater Rochester Intl to Illinois flight route?

Fly from Greater Rochester Intl to Chicago Midway for the best Greater Rochester Intl - Illinois flight prices

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

You are more likely to see cheaper flights to Illinois from Rochester when booking weeks ahead of your departure date. In general, you can expect to find flights to Illinois for around $451 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Illinois from Rochester for as low as $344 on momondo.

What cabin class options are available on Rochester to Illinois flights?

There are 4 cabin classes available to choose from on Rochester to Illinois flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Rochester to Illinois flights?

No. A direct flight is the cheapest option for a flight between Rochester to Illinois.

Cheap Rochester to Illinois flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Rochester to Illinois

Best Price Found

$211

Fastest flight time

1h 40m

Direct flights

Every day

Airports in Illinois

98 airports
The best one-way flight to Illinois from Rochester in the past 72 hours is $211. The best round-trip flight deal from Rochester to Illinois found on momondo in the last 72 hours is $335.
The fastest flight from Rochester to Illinois takes 1h 40m
Direct flights go from Rochester to Illinois every day.
There are 98 airports in Illinois. From Rochester there are direct flights to Chicago O'Hare Intl (ORD), Chicago Midway (MDW).
Search flight deals

Frequently asked questions about flying from Rochester to Illinois

  • When did momondo last update prices for flights from Greater Rochester Intl Airport to Illinois?

    Prices for flights from Greater Rochester Intl Airport to Illinois are refreshed on a daily basis.

  • How many operators does momondo search for flights from Greater Rochester Intl Airport to Illinois?

  • How old do you have to be to fly from Greater Rochester Intl Airport to Illinois?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Greater Rochester Intl Airport to Illinois.

  • What documentation or ID do you need to fly to Illinois?

    The necessary travel and health documents for your Illinois trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Rochester to Illinois?

Best airlines flying from Rochester to Illinois

Compare and see reviews for airlines that fly from Rochester to Illinois with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $266Free CancellationRating
7.4
10,111 reviews
Search United Airlines flights
American AirlinesPriceFrom $295Free CancellationRating
7.1
11,913 reviews
Search American Airlines flights
SouthwestPriceFrom $355Free CancellationRating
8.0
4,218 reviews
Search Southwest flights

Why use momondo?

Why should I use momondo to find a flight deal from Rochester to Illinois?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Illinois from Rochester.

Can I find flights from Rochester to Illinois with flexible booking policies on momondo?

All flight searches from Rochester to Illinois on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Rochester to Illinois?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Illinois from Rochester.

I’m not ready to book a flight from Rochester to Illinois right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Rochester to Illinois flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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