Cheap Flights from Rochester to St Louis

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Flight deals from Rochester to St Louis

Looking for a cheap last-minute deal or the best return flight from Rochester to St Louis? Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Rochester to St Louis

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Rochester to St Louis flights are currently cheapest in March.

Rochester to St Louis: Alternative routes

Compare routes from Rochester to St Louis below. You may find an airport to fly into that's cheaper, faster, or easier than St Louis.

Rochester to St Louis: Flight information

The things to know before you go.
Cheapest flight found$511
Cheapest month to flyMarch

Finding cheap flights from Rochester to St Louis: Frequently asked questions

The best price we found for a return flight from Rochester to St Louis is $511. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from Rochester to St Louis. But we found flights with one or more stops from $511.
As of February 2026, there are no flights flying from Rochester to St Louis.
The cheapest month to fly from Rochester to St Louis is usually March.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Rochester Airport to St Louis Airport on Tuesday, 17 March 2026.
No airlines currently offer direct flights between Rochester Airport and St Louis Airport. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to St Louis but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to St Louis is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, Delta offers the cheapest flight tickets to St Louis.

Travelling from Greater Rochester International Airport (ROC) to Lambert-St. Louis International Airport (STL): what you need to know

  • St Louis is one hour behind Rochester and follows the UTC-5 timezone.

  • Get to the airport on time so you don't miss your ROC to STL flight. Be there at least two hours ahead for international flights and an hour early for domestic departures to avoid sprinting to your gate.

  • Be prepared for longer queues during popular months like August. Arriving up to four hours in advance for international flights and two hours for domestic departures is a good idea.

  • Consider adding a stopover when booking your ticket from Greater Rochester International Airport to Lambert-St. Louis International Airport. Simply uncheck 'Direct flights only' to break up your trip, or maybe even explore a new city along the way. Here's where you can stop between ROC and STL:

    • Detroit Metropolitan Wayne County Airport

    • Chicago Midway International Airport

    • O'Hare International Airport

How to find the cheapest flights from Greater Rochester International Airport (ROC) to Lambert-St. Louis International Airport (STL)

  • $307 is the lowest price for a one-way Greater Rochester International Airport to Lambert-St. Louis International Airport flight. Return flights start from $511. These prices may change based on demand and availability.

  • Don't leave everything to the last moment. You're more likely to find cheap tickets from ROC to STL if you book early. Airlines often offer some great early bird rates.

  • Getting cheap flights from Greater Rochester International Airport to Lambert-St. Louis International Airport is easy if you can be flexible with your travel dates. Use the 'Whole month' search tool to see the lowest fares across the month and snap up a great deal.

  • Finding cheap flights from ROC to STL is easy with Price Alerts. All you need to do is set up one of these automatic alerts and we'll let you know when a lower fare pops up.

  • Find the perfect flight for you by using the filters. To see the 'Fastest,' 'Cheapest' or 'Best' flights from Greater Rochester International Airport to Lambert-St. Louis International Airport, use the 'Sort by' function. You can also filter results by arrival and departure times, airline, and journey duration.

Handy information about Greater Rochester International Airport (ROC)

  • You'll find ROC at 1200 Brooks Avenue.

  • When it comes to the on-time performance of Greater Rochester International Airport, 73.76% of flights meet their scheduled arrival time.

  • To reach Greater Rochester International Airport from central Rochester, it takes around 15 minutes if you're planning to drive. Of course, this depends on traffic conditions. It's approximately 13 kilometres from the airport to the city centre.

  • Expect a trip time of about 1 hour 35 minutes when using public transport.

  • Catching an early flight from Greater Rochester International Airport to Lambert-St. Louis International Airport? Avoid the stress of rushing to the terminal (and enjoy a little extra shut-eye) by picking one of these stays near ROC:

Arriving at Lambert-St. Louis International Airport (STL)

Getting from Lambert-St. Louis International Airport (STL) to central St Louis

  • The street address for STL is 10701 Lambert International Blvd..

  • Lambert-St. Louis International Airport is approximately 26 kilometres from the centre of St Louis. The drive time takes about 20 minutes.

  • When travelling by public transport, expect a journey time of roughly 35 minutes.

When to fly to Lambert-St. Louis International Airport (STL)

  • The quietest month for a flight from Greater Rochester International Airport to Lambert-St. Louis International Airport is April, while July is the busiest. Pick the ideal time to visit St Louis based on whether you prefer a laid-back vibe or a more bustling atmosphere.

  • The warmest month in St Louis is July, with temperatures ranging between 17ºC and 33ºC. Book your flights from Greater Rochester International Airport to Lambert-St. Louis International Airport in this month if you like this kind of weather.

  • If you'd rather travel in cooler conditions, look for a cheap ticket from ROC to STL in January. Average temperatures are between -8ºC and 7ºC then.

Explore more of United States

  • Chicago is just one of the many places in United States waiting to be discovered after you've seen St Louis. Around 418 kilometres away to the north-east, well-known attractions include Millennium Park, Art Institute of Chicago and LandShark Beer Garden at Navy Pier.

  • Around 370 kilometres east of St Louis, Indianapolis is another favourite stop in United States. Start your sightseeing at The Children's Museum of Indianapolis, Indianapolis Museum of Art and Indianapolis Zoo.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.