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$291+ Cheap flights from Rochester, MN to St. Louis (RST - 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 9/20. Fares are subject to change and may not be available on all flights or dates of travel.
RST — STL
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
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 September 11, 2025.

Round-trip from

$316
(American Airlines)

One-way from

$291
(Delta)

Popular in

March

Cheapest in

July

Average price

$308
From Rochester to Lambert-St Louis
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One-way flight from Rochester to Lambert-St Louis
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Highest demand for flights based on searches. 13% potential increase in price ($54 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($19 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 9/10. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/106:08 pmRST - STL
1 stop5h 46mAmerican Airlines
Fri 10/178:05 pmSTL - RST
1 stop3h 33mAmerican Airlines
Deal found 9/10$316
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/26:14 pmRST - STL
1 stop4h 55mDelta
Fri 10/35:40 pmSTL - RST
1 stop5h 48mDelta
Deal found 9/11$328
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.
Fri 10/36:14 pmRST - STL
1 stop4h 55mDelta
Sun 10/56:00 amSTL - RST
1 stop4h 45mDelta
Deal found 9/10$332
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.
Thu 10/26:01 pmRST - STL
1 stop5h 48mAmerican Airlines
Fri 10/38:23 amSTL - RST
2 stops12h 36mAmerican Airlines
Deal found 9/11$334
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.
Thu 9/256:14 pmRST - STL
1 stop4h 55mDelta
Mon 9/296:00 amSTL - RST
1 stop4h 45mDelta
Deal found 9/10$376
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/256:06 pmRST - STL
1 stop5h 42mAmerican Airlines
Mon 9/292:11 pmSTL - RST
2 stops9h 38mAmerican Airlines
Deal found 9/10$382
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/77:00 amRST - STL
2 stops9h 10mDelta
Mon 11/105:34 pmSTL - RST
1 stop6h 05mDelta
Deal found 9/9$408
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/34:00 pmRST - STL
2 stops17h 16mAmerican Airlines
Sat 10/45:25 pmSTL - RST
1 stop3h 34mAmerican Airlines
Deal found 9/10$431
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/36:00 amRST - STL
1 stop3h 26mAmerican Airlines
Fri 10/35:00 pmSTL - RST
1 stop3h 59mAmerican Airlines
Deal found 9/10$448

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

RST - STL

RSTSTL

Rochester

Fri 11/7

6:13 pm-11:07 pm

1 stop4h 54m

Lambert-St Louis

Mon 11/10

6:00 am-10:55 am

1 stop4h 55m

$316

RochesterSt. Louis

RST - STL

RSTSTL

Rochester

Fri 10/10

6:08 pm-11:54 pm

1 stop5h 46m

Lambert-St Louis

Fri 10/17

8:05 pm-11:38 pm

1 stop3h 33m

$316

RochesterSt. Louis

RST - STL

RSTSTL

Rochester

Thu 10/2

6:14 pm-11:09 pm

1 stop4h 55m

Lambert-St Louis

Fri 10/3

6:00 am-10:45 am

1 stop4h 45m

$328

RochesterSt. Louis

RST - STL

RSTSTL

Rochester

Fri 10/3

6:14 pm-11:09 pm

1 stop4h 55m

Lambert-St Louis

Sat 10/4

6:00 am-10:45 am

1 stop4h 45m

$328

RochesterSt. Louis

RST - STL

RSTSTL

Rochester

Fri 10/3

6:14 pm-11:09 pm

1 stop4h 55m

Lambert-St Louis

Sun 10/5

6:00 am-10:45 am

1 stop4h 45m

$332

RochesterSt. Louis

RST - STL

RSTSTL

Rochester

Thu 10/2

6:01 pm-11:49 pm

1 stop5h 48m

Lambert-St Louis

Fri 10/3

8:23 am-8:59 pm

2 stops12h 36m

$334

RochesterSt. Louis

RST - STL

RSTSTL

Rochester

Thu 9/25

6:14 pm-11:09 pm

1 stop4h 55m

Lambert-St Louis

Mon 9/29

6:00 am-10:45 am

1 stop4h 45m

$376

RochesterSt. Louis

RST - STL

RSTSTL

Rochester

Thu 9/25

6:06 pm-11:48 pm

1 stop5h 42m

Lambert-St Louis

Mon 9/29

2:11 pm-11:49 pm

2 stops9h 38m

$382

RochesterSt. Louis

RST - STL

RSTSTL

Rochester

Sat 9/20

7:00 am-11:30 am

1 stop4h 30m

$291

RochesterSt. Louis

RST - STL

RSTSTL

Rochester

Sat 9/20

4:00 pm-11:57 am

2 stops19h 57m

$340

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/11

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 September 11, 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

Boarding

7.5

Crew

8.0

Entertainment

6.9

Overall

7.2

Comfort

7.2

Food

6.4

Reviews

1 / 20
2.0
Mediocre

Jeremy,Sep 2025

SAN - PHL

Terrible. Bad customer service and unacceptable delay on the tarmac
American Airlines
7.2
Good
10,000 reviews
American Airlines
7.2
Good
10,000 reviews

Boarding

7.5

Crew

8.0

Entertainment

6.9

Overall

7.2

Comfort

7.2

Food

6.4

Reviews

1 / 20
2.0
Mediocre

Jeremy,Sep 2025

SAN - PHL

Terrible. Bad customer service and unacceptable delay on the tarmac

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, Minnesota to St. Louis?

    Departing from Rochester, Minnesota to St. Louis will take you 4h 54m. There are 373 mi between Rochester, Minnesota and St. Louis. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

    Currently priced at $276, 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. American Airlines is priced at 22% lower than the current average price of a flight leaving 3 months from now.

  • 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
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

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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 September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$276Average$367FlexibilityNo cancel feeOn-time71%

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