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$296+ Cheap flights from Rochester, MN to St. Louis (RST - STL)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/25. Fares are subject to change and may not be available on all flights or dates of travel.
RST — STL
Aug 21 — Aug 281
Thu 8/21
Thu 8/28
1 adult, Economy
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Cheap flight deals from Rochester to St. Louis

Discover tips and strategies to find the most affordable flight options for your journey from Rochester (RST) 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 August 16, 2025.

Round-trip from

$296
(American Airlines)
From Rochester to Lambert-St Louis
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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 August 16, 2025.

This American Airlines deal was found by Cheapflights users on 8/15. 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.
Thu 12/255:56 amRST - STL
1 stop3h 30mAmerican Airlines
Mon 12/295:56 amSTL - RST
1 stop5h 11mAmerican Airlines
Deal found 8/15$296
This Delta deal was found by Cheapflights users on 8/15. 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 10/136:13 pmRST - STL
1 stop4h 54mDelta
Mon 10/206:00 amSTL - RST
1 stop4h 46mDelta
Deal found 8/15$306
This Delta deal was found by Cheapflights users on 8/15. 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 12/255:10 amRST - STL
2 stops11h 01mDelta
Mon 12/296:04 amSTL - RST
1 stop5h 48mDelta
Deal found 8/15$322
This Delta deal was found by Cheapflights users on 8/14. 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 8/284:59 pmRST - STL
1 stop6h 25mDelta
Sat 8/306:00 amSTL - RST
1 stop4h 53mDelta
Deal found 8/14$356
This American Airlines deal was found by Cheapflights users on 8/14. 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.
Thu 8/286:05 amRST - STL
2 stops9h 37mAmerican Airlines
Sat 8/306:00 amSTL - RST
1 stop6h 18mAmerican Airlines
Deal found 8/14$362
This American Airlines deal was found by Cheapflights users on 8/16. 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 8/266:05 amRST - STL
1 stop6h 49mAmerican Airlines
Fri 8/297:59 pmSTL - RST
1 stop3h 48mAmerican Airlines
Deal found 8/16$562
This Delta deal was found by Cheapflights users on 8/14. 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.
Fri 8/2911:33 amRST - STL
2 stops10h 29mDelta
Tue 9/21:26 pmSTL - RST
2 stops10h 03mDelta
Deal found 8/14$592

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 August 16, 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

RST - STL

RSTSTL

Rochester

Thu 12/25

5:56 am-9:26 am

1 stop3h 30m

Lambert-St Louis

Mon 12/29

5:56 am-11:07 am

1 stop5h 11m

$296

RochesterSt. Louis

RST - STL

RSTSTL

Rochester

Mon 10/13

6:13 pm-11:07 pm

1 stop4h 54m

Lambert-St Louis

Mon 10/20

6:00 am-10:46 am

1 stop4h 46m

$306

RochesterSt. Louis

RST - STL

RSTSTL

Rochester

Thu 12/25

5:10 am-4:11 pm

2 stops11h 01m

Lambert-St Louis

Mon 12/29

6:04 am-11:52 am

1 stop5h 48m

$322

RochesterSt. Louis

RST - STL

RSTSTL

Rochester

Fri 8/29

11:33 am-4:45 pm

1 stop5h 12m

Lambert-St Louis

Tue 9/2

6:00 am-10:53 am

1 stop4h 53m

$356

RochesterSt. Louis

RST - STL

RSTSTL

Rochester

Thu 8/28

4:59 pm-11:24 pm

1 stop6h 25m

Lambert-St Louis

Sat 8/30

6:00 am-10:53 am

1 stop4h 53m

$356

RochesterSt. Louis

RST - STL

RSTSTL

Rochester

Thu 8/28

6:05 am-3:42 pm

2 stops9h 37m

Lambert-St Louis

Sat 8/30

6:00 am-12:18 pm

1 stop6h 18m

$362

RochesterSt. Louis

RST - STL

RSTSTL

Rochester

Tue 8/26

6:05 am-12:54 pm

1 stop6h 49m

Lambert-St Louis

Fri 8/29

7:59 pm-11:47 pm

1 stop3h 48m

$562

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/15

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, Minnesota to St. Louis?

Currently, August is the cheapest month in which you can book a flight from Rochester, Minnesota to St. Louis (average of $311). Flying from Rochester, Minnesota 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.

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 August 16, 2025.
Read through reviews of airlines operating flights from Rochester to St. Louis, such as American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
American Airlines
7.2
Good
10,000 reviews

Entertainment

6.9

Boarding

7.5

Crew

8.0

Food

6.5

Overall

7.2

Comfort

7.2

Reviews

1 / 20
2.0
Mediocre

Anonymous,Aug 2025

MIA - DCA

Flight delayed 5 hours and was told it was due to mechanical issues. Instead of providing lodging due to missed connecting flight, American changed the cause of delay to weather, which meant they were not able required to provide a hotel. To make matters worse, one of our checked bags was lost even though its status said it was “by the plane” but no one at the service desk seemed able to locate it.
American Airlines
7.2
Good
10,000 reviews
American Airlines
7.2
Good
10,000 reviews

Entertainment

6.9

Boarding

7.5

Crew

8.0

Food

6.5

Overall

7.2

Comfort

7.2

Reviews

1 / 20
2.0
Mediocre

Anonymous,Aug 2025

MIA - DCA

Flight delayed 5 hours and was told it was due to mechanical issues. Instead of providing lodging due to missed connecting flight, American changed the cause of delay to weather, which meant they were not able required to provide a hotel. To make matters worse, one of our checked bags was lost even though its status said it was “by the plane” but no one at the service desk seemed able to locate it.

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.

  • What is the cheapest airline to fly from Rochester, Minnesota to St. Louis round-trip?

    Currently priced at $296, American Airlines will fly you from Rochester, Minnesota to St. Louis and back. In addition to American Airlines, many other airlines offer competitively priced options for your trip.

  • 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, Minnesota to St. Louis?

    Currently, August is the cheapest month in which you can book a flight from Rochester, Minnesota to St. Louis (average of $311). Flying from Rochester, Minnesota 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
O'Fallon
Fairview Heights
Maryland Heights
Collinsville
Eureka
St. Peters
Glencoe
Alton
Chesterfield
Farmington
Festus

Browse thousands of different options on Cheapflights for your next trip

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Top airline flying from Rochester to St. Louis

Discover the top airline 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 August 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$296Average$351FlexibilityNo cancel feeOn-time71%

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