St. Louis

$149+ Cheap flights from Rochester to St. Louis (ROC - STL)

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 5/6. Fares are subject to change and may not be available on all flights or dates of travel.
ROC — STL
Apr 5 — Apr 121
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Cheap flight deals from Rochester to St. Louis

Cheapest flights from Rochester to St. Louis
Explore the most affordable flight options available from Rochester to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 6, 2026.

This American Airlines deal was found by Cheapflights users on 3/2. 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 4/148:24 pm
ROC
-
STL
1 stop4h 22m
American Airlines
Tue 4/286:00 am
STL
-
ROC
1 stop4h 40m
American Airlines
Deal found 3/2$297
This United Airlines deal was found by Cheapflights users on 3/4. 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 5/55:56 pm
ROC
-
STL
1 stop4h 17m
United Airlines
Tue 5/127:45 am
STL
-
ROC
2 stops8h 39m
United Airlines
Deal found 3/4$302
This Delta deal was found by Cheapflights users on 3/2. 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.
Mon 5/46:13 pm
ROC
-
STL
1 stop6h 23m
Delta
Wed 5/66:48 am
STL
-
ROC
1 stop3h 37m
Delta
Deal found 3/2$306
This United Airlines deal was found by Cheapflights users on 3/2. 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 4/188:00 pm
ROC
-
STL
1 stop4h 57m
United Airlines
Sun 4/196:15 am
STL
-
ROC
1 stop5h 12m
United Airlines
Deal found 3/2$307
This American Airlines deal was found by Cheapflights users on 3/5. 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.
Mon 5/45:25 pm
ROC
-
STL
2 stops7h 21m
American Airlines
Wed 5/66:29 am
STL
-
ROC
1 stop7h 15m
American Airlines
Deal found 3/5$311
This Delta deal was found by Cheapflights users on 3/2. 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.
Thu 4/96:16 pm
ROC
-
STL
1 stop6h 42m
Delta
Mon 4/135:59 pm
STL
-
ROC
1 stop4h 04m
Delta
Deal found 3/2$315
This United Airlines deal was found by Cheapflights users on 3/3. 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.
Fri 4/106:05 pm
ROC
-
STL
1 stop6h 52m
United Airlines
Mon 4/137:45 am
STL
-
ROC
1 stop4h 54m
United Airlines
Deal found 3/3$316
This Delta deal was found by Cheapflights users on 3/3. 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 5/166:17 pm
ROC
-
STL
1 stop6h 42m
Delta
Wed 5/206:00 am
STL
-
ROC
1 stop5h 08m
Delta
Deal found 3/3$317
This American Airlines deal was found by Cheapflights users on 3/3. 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 5/167:00 am
ROC
-
STL
1 stop5h 13m
American Airlines
Wed 5/205:51 am
STL
-
ROC
1 stop4h 31m
American Airlines
Deal found 3/3$318
This Southwest deal was found by Cheapflights users on 3/6. 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.
Thu 4/237:50 pm
ROC
-
STL
1 stop3h 55m
Southwest
Sat 4/258:45 am
STL
-
ROC
2 stops8h 20m
Southwest
Deal found 3/6$320
This United Airlines deal was found by Cheapflights users on 3/4. 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 4/26:20 am
ROC
-
STL
1 stop5h 25m
United Airlines
Tue 4/77:45 am
STL
-
ROC
1 stop4h 54m
United Airlines
Deal found 3/4$323

Find flight deals from Rochester to St. Louis

Discover tips and strategies to find the most affordable flight options for your journey from Rochester (ROC) to St. Louis (STL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated March 6, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$297
(American Airlines)

One-way from

$149
(Delta)

Popular in

January

Cheapest in

September

Average price

$451
Provider with most accurate pricing for Greater Rochester Intl-Lambert-St Louis flight deals.
Provider most trusted by Cheapflights users for Greater Rochester Intl-Lambert-St Louis flights.
From Greater Rochester Intl to Lambert-St Louis
One-way flight from Greater Rochester Intl to Lambert-St Louis
Highest demand for flights based on searches. 4% potential increase in price ($18 potential increase over avg. RT price).
Cheapest flight prices on average. 1% potential price decrease ($8 potential savings vs. average RT price).
Average for round-trip flights in March 2026

Cheapflights Fare Finder

 
Customize your flight search to find flights from Rochester to St. Louis 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 March 6, 2026.
Use the filters below to find and compare flights from Rochester to St. Louis that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

RochesterSt. Louis

ROC - STL

ROCSTL

Greater Rochester Intl

Tue 5/5

6:11 pm-11:57 pm

1 stop6h 46m

Lambert-St Louis

Tue 5/12

9:14 am-4:45 pm

1 stop6h 31m

$297
Quickest round-trip

RochesterSt. Louis

ROC - STL

ROCSTL

Greater Rochester Intl

Sat 4/18

8:00 pm-11:57 pm

1 stop4h 57m

Lambert-St Louis

Sun 4/19

6:15 am-12:27 pm

1 stop5h 12m

$307

RochesterSt. Louis

ROC - STL

ROCSTL

Greater Rochester Intl

Thu 4/23

7:50 pm-10:45 pm

1 stop3h 55m

Lambert-St Louis

Sat 4/25

8:45 am-6:05 pm

2 stops8h 20m

$320

RochesterSt. Louis

ROC - STL

ROCSTL

Greater Rochester Intl

Thu 4/2

6:20 am-10:45 am

1 stop5h 25m

Lambert-St Louis

Tue 4/7

7:45 am-1:39 pm

1 stop4h 54m

$323

RochesterSt. Louis

ROC - STL

ROCSTL

Greater Rochester Intl

Tue 5/5

12:35 pm-8:00 pm

2 stops8h 25m

Lambert-St Louis

Tue 5/12

12:40 pm-10:05 pm

2 stops8h 25m

$326

RochesterSt. Louis

ROC - STL

ROCSTL

Greater Rochester Intl

Thu 4/9

6:16 pm-11:58 pm

1 stop6h 42m

Lambert-St Louis

Mon 4/13

5:59 pm-11:03 pm

1 stop4h 04m

$335

RochesterSt. Louis

ROC - STL

ROCSTL

Greater Rochester Intl

Tue 4/14

4:05 pm-9:05 pm

1 stop6h 00m

Lambert-St Louis

Tue 4/28

7:35 am-4:40 pm

2 stops8h 05m

$337

RochesterSt. Louis

ROC - STL

ROCSTL

Greater Rochester Intl

Thu 4/23

8:24 pm-11:46 pm

1 stop4h 22m

Lambert-St Louis

Sun 4/26

6:29 am-2:44 pm

1 stop7h 15m

$341

RochesterSt. Louis

ROC - STL

ROCSTL

Greater Rochester Intl

Mon 4/13

7:50 pm-10:45 pm

1 stop3h 55m

Lambert-St Louis

Fri 5/1

1:45 pm-9:20 pm

1 stop6h 35m

$341

RochesterSt. Louis

ROC - STL

ROCSTL

Greater Rochester Intl

Sat 4/11

6:16 pm-11:58 pm

1 stop6h 42m

Lambert-St Louis

Sun 4/12

6:32 am-11:20 am

1 stop3h 48m

$358

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/1

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

Compare providers for flights from Rochester to St. Louis

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Rochester to St. Louis in March.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Rochester-St. Louis flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Rochester-St. Louis flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Rochester-St. Louis flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Rochester-St. Louis flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Rochester-St. Louis flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Rochester to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis 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 St. Louis

What is the cheapest month to book a flight from Rochester to St. Louis?

Currently, August is the cheapest month in which you can book a flight from Rochester to St. Louis (average of $112). Flying from Rochester to St. Louis in March is currently the most expensive (average of $291). 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.

Reviews of airlines servicing St. Louis

Get insights into the airlines that provide service to St. Louis. 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 St. Louis. Reviews last updated March 6, 2026.
See what other customers who have flown with Southwest, Delta, and United Airlines from Rochester to St. Louis have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Overall

8.0

Entertainment

7.5

Crew

8.6

Boarding

8.1

Food

7.0

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Mar 2026

KOA - HNL

pretty smooth and fast service ever, that flight is very helpful each and everyone for price and also fright for free..

Overall

8.0

Entertainment

7.5

Crew

8.6

Boarding

8.1

Food

7.0

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Mar 2026

KOA - HNL

pretty smooth and fast service ever, that flight is very helpful each and everyone for price and also fright for free..

Overall

8.0

Entertainment

7.5

Crew

8.6

Boarding

8.1

Food

7.0

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Mar 2026

KOA - HNL

pretty smooth and fast service ever, that flight is very helpful each and everyone for price and also fright for free..

Overall

8.0

Entertainment

7.5

Crew

8.6

Boarding

8.1

Food

7.0

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Mar 2026

KOA - HNL

pretty smooth and fast service ever, that flight is very helpful each and everyone for price and also fright for free..

Overall

8.0

Entertainment

7.5

Crew

8.6

Boarding

8.1

Food

7.0

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Mar 2026

KOA - HNL

pretty smooth and fast service ever, that flight is very helpful each and everyone for price and also fright for free..

Related info for your journey

Find useful and relevant information for your journey from Rochester to St. Louis. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • How long is the flight from Rochester to St. Louis?

    A quick flight from Rochester to St. Louis can take about 3h 55m. United Airlines provides one of the quickest options available for as low as $320. There are 727 mi between Rochester and St. Louis. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines flying from Rochester to St. Louis round-trip?

    Flying on United Airlines is currently your cheapest option to St. Louis, with prices starting at $208. Additional round-trip tickets that might be worth considering are offered by Southwest and American Airlines, with the lowest prices starting at $228 and $236, respectively. Users have found that United Airlines is 47% cheaper than the other options available to this destination.

  • What are the cheapest airlines to fly from Rochester to St. Louis one-way?

    The cheapest airlines for a one-way flight from Rochester to St. Louis are Delta ($127), American Airlines ($143), and United Airlines ($167).

  • Can I find deals for flights from Rochester to St. Louis that include hotel bookings?

    Yes. In addition to deals on Rochester to St. Louis flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Rochester to St. Louis?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Rochester to St. Louis.

  • Can I find deals for business class flights from Rochester to St. Louis?

    Yes. Cheapflights offers flight deals from Rochester to St. Louis 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 St. Louis?

    Currently, August is the cheapest month in which you can book a flight from Rochester to St. Louis (average of $112). Flying from Rochester to St. Louis in March is currently the most expensive (average of $291). 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

Traveling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
Edwardsville
O'Fallon
Fenton
Swansea
Fairview Heights
Maryland Heights
Collinsville
Eureka
Wentzville
Glencoe
Chesterfield
Alton
Farmington
Festus

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Top 4 airlines flying from Rochester to St. Louis

Discover the top 4 airlines that operate flights from Rochester to St. Louis. 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 March 6, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$208Average$533FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$228Average$356FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$236Average$360FlexibilityNo cancel feeOn-time71%
DeltaCheapest$251Average$376FlexibilityNo cancel feeOn-timeN/A

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