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$157+ 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
Nov 19 — Nov 261
Wed 11/19
Wed 11/26
1 adult, Economy
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1. Tell us where you want to go

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Cheapflights Tip: The best prices from 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 October 20, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$262
(Kiwi.com)

One-way from

$157
(Kiwi.com)

Popular in

November

Cheapest in

September

Average price

$492
Provider with most accurate pricing for Greater Rochester Intl-Lambert-St Louis flight deals.
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Provider most trusted by Cheapflights users for Greater Rochester Intl-Lambert-St Louis flights.
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From Greater Rochester Intl to Lambert-St Louis
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One-way flight from Greater Rochester Intl to Lambert-St Louis
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Highest demand for flights based on searches. 16% potential increase in price ($82 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($11 potential savings vs. average RT price).
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Average for round-trip flights in October 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 October 20, 2025.

This Kiwi.com deal was found by Cheapflights users on 10/18. 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.
Thu 12/46:51 pmROC - STL
1 stop15h 08mMultiple Airlines
Mon 12/89:54 amSTL - ROC
1 stop6h 52mMultiple Airlines
Deal found 10/18$262
This Delta deal was found by Cheapflights users on 10/19. 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.
Wed 11/196:02 amROC - STL
1 stop7h 38mDelta
Sun 11/236:40 amSTL - ROC
1 stop3h 52mDelta
Deal found 10/19$332
This Southwest deal was found by Cheapflights users on 10/20. 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 11/173:50 pmROC - STL
1 stop7h 10mSouthwest
Tue 11/1810:15 amSTL - ROC
1 stop6h 35mSouthwest
Deal found 10/20$342
This Kiwi.com deal was found by Cheapflights users on 10/19. 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.
Wed 11/511:40 amROC - STL
2 stops23h 32mMultiple Airlines
Sun 11/95:12 pmSTL - ROC
1 stop23h 18mMultiple Airlines
Deal found 10/19$348
This Mytrip deal was found by Cheapflights users on 10/17. 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.
Sun 11/210:35 amROC - STL
2 stops9h 01mMultiple Airlines
Thu 11/67:02 pmSTL - ROC
2 stops21h 28mMultiple Airlines
Deal found 10/17$352
This Delta deal was found by Cheapflights users on 10/18. 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.
Wed 11/56:00 amROC - STL
1 stop7h 35mDelta
Sat 11/810:45 amSTL - ROC
1 stop4h 42mDelta
Deal found 10/18$362
This Mytrip deal was found by Cheapflights users on 10/19. 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.
Sat 12/209:30 amROC - STL
2 stops26h 26mMultiple Airlines
Thu 1/812:20 pmSTL - ROC
1 stop9h 14mMultiple Airlines
Deal found 10/19$365
This Southwest deal was found by Cheapflights users on 10/18. 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 11/512:40 pmROC - STL
2 stops7h 50mSouthwest
Sat 11/810:10 amSTL - ROC
1 stop5h 45mSouthwest
Deal found 10/18$367
This American Airlines deal was found by Cheapflights users on 10/19. 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 10/294:00 pmROC - STL
1 stop5h 26mAmerican Airlines
Fri 10/3110:22 amSTL - ROC
1 stop5h 53mAmerican Airlines
Deal found 10/19$390

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 October 20, 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

Greater Rochester Intl

Thu 12/4

6:51 pm-8:59 am

1 stop15h 08m

Lambert-St Louis

Mon 12/8

9:54 am-5:46 pm

1 stop6h 52m

$262

RochesterSt. Louis

ROC - STL

ROCSTL

Greater Rochester Intl

Wed 11/19

6:02 am-12:40 pm

1 stop7h 38m

Lambert-St Louis

Sun 11/23

6:40 am-11:32 am

1 stop3h 52m

$332

RochesterSt. Louis

ROC - STL

ROCSTL

Greater Rochester Intl

Mon 11/17

3:50 pm-10:00 pm

1 stop7h 10m

Lambert-St Louis

Tue 11/18

10:15 am-5:50 pm

1 stop6h 35m

$342

RochesterSt. Louis

ROC - STL

ROCSTL

Greater Rochester Intl

Sun 11/2

10:35 am-6:36 pm

2 stops9h 01m

Lambert-St Louis

Thu 11/6

7:02 pm-5:30 pm

2 stops21h 28m

$352

RochesterSt. Louis

ROC - STL

ROCSTL

Greater Rochester Intl

Sat 12/20

9:30 am-10:56 am

2 stops26h 26m

Lambert-St Louis

Thu 1/8

12:20 pm-10:34 pm

1 stop9h 14m

$365

RochesterSt. Louis

ROC - STL

ROCSTL

Greater Rochester Intl

Fri 11/21

7:07 am-1:43 pm

1 stop7h 36m

Lambert-St Louis

Sun 11/23

4:46 pm-12:02 am

1 stop6h 16m

$367

RochesterSt. Louis

ROC - STL

ROCSTL

Greater Rochester Intl

Wed 11/5

12:40 pm-7:30 pm

2 stops7h 50m

Lambert-St Louis

Sat 11/8

10:10 am-4:55 pm

1 stop5h 45m

$367

RochesterSt. Louis

ROC - STL

ROCSTL

Greater Rochester Intl

Wed 10/29

4:00 pm-8:26 pm

1 stop5h 26m

Lambert-St Louis

Fri 10/31

10:22 am-5:15 pm

1 stop5h 53m

$390

RochesterSt. Louis

ROC - STL

ROCSTL

Greater Rochester Intl

Tue 11/25

6:30 am-12:28 pm

1 stop6h 58m

Lambert-St Louis

Sun 11/30

6:43 pm-2:38 am

1 stop6h 55m

$395

RochesterSt. Louis

ROC - STL

ROCSTL

Greater Rochester Intl

Fri 11/7

5:30 am-9:20 am

1 stop4h 50m

Lambert-St Louis

Sun 11/9

6:00 am-11:01 am

1 stop4h 01m

$407

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/20

Showing 1-10 of 15 results
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 October.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust 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

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 October 17, 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 $112). Flying from Rochester to St. Louis in May is currently the most expensive (average of $248). 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 October 20, 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 evening could potentially save you up to 41% 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 October 20, 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
4,239 reviews

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Crew

8.6

Food

7.0

Overall

8.0

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
4,239 reviews
Southwest
8.0
Very good
4,239 reviews

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Crew

8.6

Food

7.0

Overall

8.0

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
7.9
Good
7,978 reviews
Southwest
8.0
Very good
4,239 reviews

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Crew

8.6

Food

7.0

Overall

8.0

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
8,991 reviews
Southwest
8.0
Very good
4,239 reviews

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Crew

8.6

Food

7.0

Overall

8.0

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
11,024 reviews
Southwest
8.0
Very good
4,239 reviews

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Crew

8.6

Food

7.0

Overall

8.0

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 7h 10m. Delta provides one of the quickest options available for as low as $342. 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 Delta, with the lowest prices starting at $256 and $286, respectively. Users have found that American Airlines is 41% 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 American Airlines ($194), Southwest ($199), and United Airlines ($436).

  • 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 May is currently the most expensive (average of $248). 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

See prices for flight routes from nearby airports that may be better suited for you.
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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 October 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$236Average$370FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$256Average$362FlexibilityNo cancel feeOn-time63%
DeltaCheapest$286Average$417FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$291Average$365FlexibilityNo cancel feeOn-time69%

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