$158 Cheap Flights from St. Louis (STL) to Rochester (RST)

View $158 flight on Mon, Sep 29, 2025Opens in a new window

Popular airlines from St. Louis Lambert Intl. Airport (STL) to Rochester, MN (RST-Rochester Intl.)

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Cheap Flights from St. Louis to Rochester (STL-RST)

Prices were available within the past 7 days and start at $158 for one-way flights and $296 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Wed, Nov 12 - Tue, Nov 18
STL
St. Louis
RST
Rochester
$296 Roundtrip, found 3 hours ago
$296
Roundtrip
found 3 hours ago
Select Delta flight, departing Wed, Nov 12 from St. Louis to Rochester, returning Tue, Nov 18, priced at $296 found 3 hours ago
Delta
Wed, Nov 12 - Mon, Nov 17
STL
St. Louis
RST
Rochester
$306 Roundtrip, found 3 hours ago
$306
Roundtrip
found 3 hours ago
Select Delta flight, departing Wed, Nov 12 from St. Louis to Rochester, returning Mon, Nov 17, priced at $306 found 3 hours ago
Delta
Tue, Oct 14 - Sat, Oct 18
STL
St. Louis
RST
Rochester
$312 Roundtrip, found 2 days ago
$312
Roundtrip
found 2 days ago
Select Delta flight, departing Tue, Oct 14 from St. Louis to Rochester, returning Sat, Oct 18, priced at $312 found 2 days ago
Delta
Thu, Oct 9 - Tue, Oct 14
STL
St. Louis
RST
Rochester
$312 Roundtrip, found 2 days ago
$312
Roundtrip
found 2 days ago
Select Delta flight, departing Thu, Oct 9 from St. Louis to Rochester, returning Tue, Oct 14, priced at $312 found 2 days ago
American Airlines
Sat, Nov 15 - Thu, Nov 20
STL
St. Louis
RST
Rochester
$316 Roundtrip, found 3 hours ago
$316
Roundtrip
found 3 hours ago
Select American Airlines flight, departing Sat, Nov 15 from St. Louis to Rochester, returning Thu, Nov 20, priced at $316 found 3 hours ago
Delta
Tue, Dec 2 - Fri, Dec 5
STL
St. Louis
RST
Rochester
$321 Roundtrip, found 4 days ago
$321
Roundtrip
found 4 days ago
Select Delta flight, departing Tue, Dec 2 from St. Louis to Rochester, returning Fri, Dec 5, priced at $321 found 4 days ago
Delta
Sat, Dec 13 - Mon, Dec 15
STL
St. Louis
RST
Rochester
$322 Roundtrip, found 1 day ago
$322
Roundtrip
found 1 day ago
Select Delta flight, departing Sat, Dec 13 from St. Louis to Rochester, returning Mon, Dec 15, priced at $322 found 1 day ago
Delta
Thu, Oct 9 - Mon, Oct 13
STL
St. Louis
RST
Rochester
$322 Roundtrip, found 2 days ago
$322
Roundtrip
found 2 days ago
Select Delta flight, departing Thu, Oct 9 from St. Louis to Rochester, returning Mon, Oct 13, priced at $322 found 2 days ago
Delta
Sat, Dec 13 - Wed, Dec 17
STL
St. Louis
RST
Rochester
$326 Roundtrip, found 1 day ago
$326
Roundtrip
found 1 day ago
Select Delta flight, departing Sat, Dec 13 from St. Louis to Rochester, returning Wed, Dec 17, priced at $326 found 1 day ago
Delta
Sat, Nov 15 - Thu, Nov 20
STL
St. Louis
RST
Rochester
$327 Roundtrip, found 3 hours ago
$327
Roundtrip
found 3 hours ago
Select Delta flight, departing Sat, Nov 15 from St. Louis to Rochester, returning Thu, Nov 20, priced at $327 found 3 hours ago

Find the cheapest month to fly from St. Louis (STL) to Rochester (RST)

August is typically the cheapest month to fly

From $226 - $498 per traveler.

Alternative airports near Rochester

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Rochester Intl. RST. Cheapest and Closest option available. Average driving time to city center is 12 minutes. Flights from $336
RST
Rochester Intl.
CheapestClosest
Average driving time to city center12 min
Flights from $336
Flights from St. Louis (STL) to Rochester (RST)
Origin airport
Lambert-St. Louis Intl.
Destination airport
Rochester Intl.
Airlines serving
American Airlines, Delta
Roundtrip price
$296
Distance
373 mi

St. Louis to Rochester Flights

The cheapest times to fly from St. Louis to Rochester

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from St. Louis to Rochester are during the month of November. You can find some of the cheapest flights from St. Louis to Rochester with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from St. Louis to Rochester

Sunday is one of the best days to book for cheap flights from St. Louis to Rochester: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from St. Louis to Rochester

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from St. Louis to Rochester in 2025. You can also book with separate airlines for your outbound and return journeys, from $158 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap St. Louis to Rochester flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your St. Louis to Rochester airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Lambert-St. Louis Intl. Airport (STL) to Rochester Intl. Airport (RST) cost?
Lock in a cheap one-way flight from $158 or cheap return flight from $296 from Lambert-St. Louis Intl. Airport (STL) to Rochester Intl. Airport (RST) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from Lambert-St. Louis Intl. Airport (STL) to Rochester Intl. Airport (RST)?
November is the cheapest month to fly from STL to RST. Planning your trip for the off-season is often the key to finding better deals on flights.
What is the cheapest airline that flies from Lambert-St. Louis Intl. Airport (STL) to Rochester Intl. Airport (RST)?
Use the filters on Expedia to compare airlines and find the cheapest carrier that'll fly you from STL to RST. Then, sort your results by "Price (lowest to highest)" to pick up a great deal.
How many flights per day from Lambert-St. Louis Intl. Airport (STL) to Rochester Intl. Airport (RST)?
Nonstop flights from Lambert-St. Louis Intl. Airport (STL) to Rochester Intl. Airport (RST) aren't available daily, so you'll need to take a flight with a layover. Explore your options with our filter tool. Enter your travel dates and choose either "1 Stop" or "2+ Stops."
What day of the week has the most flights from STL to RST?
Typically you'll find the widest variety of flight choices on a Friday. Tuesdays are often the quietest.* But this can vary based on the time of year, airline and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Lambert-St. Louis Intl. Airport (STL) to Rochester Intl. Airport (RST)?
To avoid potential delays on the Lambert-St. Louis Intl. Airport (STL) to Rochester Intl. Airport (RST) route, aim to fly before 3 PM. Departures after this hour have a 22% higher chance of cancellation.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Lambert-St. Louis Intl. Airport (STL) to Rochester Intl. Airport (RST) last-minute?
Booking your flight from STL to RST shortly before your journey is usually more expensive. However, if there's some wiggle room with your travel times and dates, you could bag a cheap last-minute fare.
Is it cheaper to book a STL to RST flight and hotel package?
You'll typically save money by booking a STL to RST flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it's easy to manage it all in one convenient place. Once you've chosen your ideal accommodations and flights, you can add extras such as activities, car rentals and tours.
Can I cancel or change the date of my flight from Lambert-St. Louis Intl. Airport (STL) to Rochester Intl. Airport (RST)?
Typically, you can reschedule or cancel your STL to RST flight. However, additional charges may apply, especially if you booked over 24 hours ago. Double-check your itinerary for the airline's rules and fees on flight changes, or if you need further information, visit our Customer Service portal.

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*Available to One Key members.