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$118+ 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 11/17. Fares are subject to change and may not be available on all flights or dates of travel.
ROC — STL
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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Cheapflights Tip: The best prices from Rochester Greater Rochester Intl to Lambert-St Louis are usually found in September or March, booked 63 days in advance, depart on a Saturday or Thursday and return on a Monday

Cheap 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 September 11, 2025.

Round-trip from

$207
(American Airlines)

One-way from

$118
(United Airlines)

Popular in

November

Cheapest in

September

Average price

$309
From Rochester Greater Rochester Intl to Lambert-St Louis
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One-way flight from Rochester Greater Rochester Intl to Lambert-St Louis
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Highest demand for flights based on searches. 12% potential increase in price ($54 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($10 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find 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 September 11, 2025.

This American Airlines deal was found by Cheapflights users on 9/11. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/1511:53 amROC - STL
1 stop13h 01mAmerican Airlines
Wed 10/226:00 amSTL - ROC
1 stop7h 19mAmerican Airlines
Deal found 9/11$207
This American Airlines deal was found by Cheapflights users on 9/11. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/1511:53 amROC - STL
1 stop13h 01mAmerican Airlines
Sat 10/186:00 amSTL - ROC
1 stop4h 22mAmerican Airlines
Deal found 9/11$208
This United Airlines deal was found by Cheapflights users on 9/11. 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.
Wed 10/156:30 amROC - STL
1 stop5h 19mUnited Airlines
Wed 10/225:00 amSTL - ROC
2 stops6h 52mUnited Airlines
Deal found 9/11$214
This American Airlines deal was found by Cheapflights users on 9/9. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/68:05 pmROC - STL
1 stop4h 49mAmerican Airlines
Wed 10/86:00 amSTL - ROC
1 stop7h 19mAmerican Airlines
Deal found 9/9$221
This American Airlines deal was found by Cheapflights users on 9/11. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/227:25 amROC - STL
1 stop5h 41mAmerican Airlines
Mon 10/275:53 pmSTL - ROC
1 stop4h 49mAmerican Airlines
Deal found 9/11$222
This Southwest deal was found by Cheapflights users on 9/10. 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.
Mon 11/36:25 pmROC - STL
1 stop4h 55mSouthwest
Wed 11/56:05 amSTL - ROC
1 stop4h 50mSouthwest
Deal found 9/10$237
This United Airlines deal was found by Cheapflights users on 9/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/210:47 amROC - STL
1 stop4h 38mUnited Airlines
Wed 11/58:00 amSTL - ROC
1 stop4h 36mUnited Airlines
Deal found 9/10$248
This Delta deal was found by Cheapflights users on 9/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/25:00 amROC - STL
1 stop7h 35mDelta
Wed 11/56:40 amSTL - ROC
1 stop3h 50mDelta
Deal found 9/10$252
This American Airlines deal was found by Cheapflights users on 9/11. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/142:49 pmROC - STL
1 stop10h 05mAmerican Airlines
Thu 10/167:16 amSTL - ROC
1 stop6h 03mAmerican Airlines
Deal found 9/11$271

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 September 11, 2025.
Use the filters below to find and compare flights from Rochester to St. Louis that are best for you.

Fly from

Rochester

Fly to

St. Louis

Route

Depart

Return

Price

RochesterSt. Louis

ROC - STL

ROCSTL

Rochester Greater Rochester Intl

Wed 10/15

11:53 am-11:54 pm

1 stop13h 01m

Lambert-St Louis

Wed 10/22

6:00 am-2:19 pm

1 stop7h 19m

$207

RochesterSt. Louis

ROC - STL

ROCSTL

Rochester Greater Rochester Intl

Wed 10/15

11:53 am-11:54 pm

1 stop13h 01m

Lambert-St Louis

Sat 10/18

6:00 am-11:22 am

1 stop4h 22m

$208

RochesterSt. Louis

ROC - STL

ROCSTL

Rochester Greater Rochester Intl

Wed 10/15

6:30 am-10:49 am

1 stop5h 19m

Lambert-St Louis

Wed 10/22

5:00 am-12:52 pm

2 stops6h 52m

$214

RochesterSt. Louis

ROC - STL

ROCSTL

Rochester Greater Rochester Intl

Sat 11/15

12:00 pm-4:55 pm

1 stop5h 55m

Lambert-St Louis

Tue 11/18

12:45 pm-10:30 pm

2 stops8h 45m

$214

RochesterSt. Louis

ROC - STL

ROCSTL

Rochester Greater Rochester Intl

Mon 11/3

5:37 pm-10:45 pm

1 stop6h 08m

Lambert-St Louis

Wed 11/5

6:30 am-1:36 pm

1 stop6h 06m

$222

RochesterSt. Louis

ROC - STL

ROCSTL

Rochester Greater Rochester Intl

Wed 10/22

7:25 am-12:06 pm

1 stop5h 41m

Lambert-St Louis

Mon 10/27

5:53 pm-11:42 pm

1 stop4h 49m

$222

RochesterSt. Louis

ROC - STL

ROCSTL

Rochester Greater Rochester Intl

Sun 11/9

6:00 am-10:41 am

1 stop5h 41m

Lambert-St Louis

Sat 11/15

3:14 pm-8:52 pm

1 stop4h 38m

$248

RochesterSt. Louis

ROC - STL

ROCSTL

Rochester Greater Rochester Intl

Sun 11/2

10:47 am-2:25 pm

1 stop4h 38m

Lambert-St Louis

Wed 11/5

8:00 am-1:36 pm

1 stop4h 36m

$248

RochesterSt. Louis

ROC - STL

ROCSTL

Rochester Greater Rochester Intl

Sun 11/2

5:00 am-11:35 am

1 stop7h 35m

Lambert-St Louis

Wed 11/5

6:40 am-11:30 am

1 stop3h 50m

$252

RochesterSt. Louis

ROC - STL

ROCSTL

Rochester Greater Rochester Intl

Thu 10/9

6:30 am-10:49 am

1 stop5h 19m

Lambert-St Louis

Mon 10/13

6:30 am-1:29 pm

1 stop5h 59m

$287

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/11

Showing 1-10 of 21 results
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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

How far ahead should I book a flight from Rochester to St. Louis?

Use this chart to determine the optimal time to book a round-trip flight from Rochester to St. Louis. Price data was last updated on August 29, 2025.

The price you pay for your flight from Rochester to St. Louis may vary depending on when you book. For the best chance of a lower fare, look to book 63 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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 $311). Flying from Rochester to St. Louis in March is currently the most expensive (average of $356). 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 STL?

Find hourly flight availability from Rochester to St. Louis. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 11, 2025.

One of the essential ways to save on airfare from Rochester to St. Louis is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the morning could potentially save you up to 20% on airfare.

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 September 11, 2025.
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.
Southwest
8.0
Very good
4,248 reviews

Comfort

8.0

Entertainment

7.5

Overall

8.0

Food

7.0

Crew

8.6

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Southwest
8.0
Very good
4,248 reviews
Southwest
8.0
Very good
4,248 reviews

Comfort

8.0

Entertainment

7.5

Overall

8.0

Food

7.0

Crew

8.6

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Delta
8.0
Very good
7,960 reviews
Southwest
8.0
Very good
4,248 reviews

Comfort

8.0

Entertainment

7.5

Overall

8.0

Food

7.0

Crew

8.6

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
United Airlines
7.4
Good
8,937 reviews
Southwest
8.0
Very good
4,248 reviews

Comfort

8.0

Entertainment

7.5

Overall

8.0

Food

7.0

Crew

8.6

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,248 reviews

Comfort

8.0

Entertainment

7.5

Overall

8.0

Food

7.0

Crew

8.6

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

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 5h 19m. American Airlines provides one of the quickest options available for as low as $214. 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 American Airlines is currently your cheapest option to St. Louis, with prices starting at $236. Additional round-trip tickets that might be worth considering are offered by Southwest and United Airlines, with the lowest prices starting at $256 and $286, respectively. Users have found that American Airlines is 39% cheaper than the other options available to this destination.

  • 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 $311). Flying from Rochester to St. Louis in March is currently the most expensive (average of $356). 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
Fairview Heights
Maryland Heights
Collinsville
Eureka
Glencoe
St. Peters
Chesterfield
Alton
Farmington
Festus

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Rochester to St. Louis

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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 September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$236Average$379FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$256Average$362FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$286Average$376FlexibilityNo cancel feeOn-time69%
DeltaCheapest$286Average$414FlexibilityNo cancel feeOn-timeN/A

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