Cheap Flights from St Louis to Santa Rosa

Compare St Louis to Santa Rosa flight deals

Find the cheapest month or even day of the year to fly to Santa Rosa

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Flight deals from St Louis to Santa Rosa

Looking for a cheap last-minute deal or the best return flight from St Louis Airport to Santa Rosa Airport? If you want to travel next month, return fares start from $662. Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from St Louis to Santa Rosa

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

St Louis to Santa Rosa: Alternative routes

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

St Louis to Santa Rosa: Flight information

The things to know before you go.
Cheapest flight found$662
Cheapest month to flyAugust

Finding cheap flights from St Louis to Santa Rosa: Frequently asked questions

The best price we found for a return flight from St Louis to Santa Rosa is $662. 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 St Louis to Santa Rosa. But we found flights with one or more stops from $662.
As of July 2026, there are no flights flying from St Louis to Santa Rosa.
The cheapest month to fly from St Louis to Santa Rosa is usually August.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from St Louis Airport to Santa Rosa Airport on Wednesday, 12 August 2026.
No airlines currently offer direct flights between St Louis Airport and Santa Rosa 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 Santa Rosa 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 Santa Rosa is around 40 days in advance, so don’t leave your flight to the last minute.

Currently, Southwest Airlines offers the cheapest flight tickets to Santa Rosa.

Flying from St Louis Airport (STL) to Santa Rosa Airport (STS): what you need to know

  • To ensure you catch your STL to STS flight, leave plenty of time to check in and find your gate. Turning up two hours ahead of international departures and one hour before domestic flights is the general rule.

  • Flying during a peak time such as July? Public holidays and other popular periods can lead to longer queues at security. Be extra cautious and get there up to four hours before international flights and two hours before domestic departures.

  • If you want to explore another city along the way, consider a flight with a stopover. To see your options for tickets from St Louis Airport to Santa Rosa Airport, deselect 'Direct flights only.' Dallas Fort Worth International Airport is a sought-after stop between STL and STS.

How to find the cheapest flights from St Louis Airport (STL) to Santa Rosa Airport (STS)

  • The cheapest price we've found for a one-way St Louis Airport to Santa Rosa Airport flight is $910. A round-trip plane ticket right now is $662. Depending on the availability and when you book, these fares can change.

  • To find cheap tickets from STL to STS, book early. Airlines usually offer their most competitively priced fares when flights are first released.

  • The 'Whole month' search tool shows you the cheapest flights from St Louis Airport to Santa Rosa Airport across each month. It's a great way to find a bargain if your plans are flexible.

  • You won't have to check back in every day to find out if fares have dropped when you set up a Price Alert. We'll send you an update the moment there's a new deal on cheap flights from STL to STS.

  • Find the right flight for you with the help of the filters. To see the 'Best,' 'Cheapest' or 'Fastest' flights from St Louis Airport to Santa Rosa Airport, use the 'Sort by' tool. You can also filter results by airline, arrival and departure times, and number of stops.

Handy information about St Louis Airport (STL)

Arriving at Santa Rosa Airport (STS)

  • If you're coming in on a late St Louis Airport to Santa Rosa Airport flight, few things beat the convenience of being near the terminal. Grab your luggage from the carousel and then be showered and snoozing soon after at one of these options near STS:

  • Grab a Santa Rosa Airport rental car and discover Santa Rosa and beyond with your own set of wheels. Ace Rent a Car, Hertz and Avis are leading providers to choose from here.

  • To get the lowest possible price, reserve your ride from Santa Rosa Airport at least a couple of weeks in advance. Rates generally rise as your departure date approaches.

Getting from Santa Rosa Airport (STS) to central Santa Rosa

  • The street address for STS is 2200 Airport Boulevard.

  • Santa Rosa Airport to central Santa Rosa has a drive time of about 10 minutes. It's approximately 10 kilometres away.

  • If you're taking public transport, expect a journey time of around 35 minutes.

When to fly to Santa Rosa Airport (STS)

  • The quietest month for a flight from St Louis Airport to Santa Rosa Airport is March, while August is the most popular. Choose the ideal time to visit Santa Rosa based on whether you prefer a more fast-paced or easygoing experience.

  • Lock in your flight from St Louis Airport to Santa Rosa Airport for August if you want to visit Santa Rosa during its warmest month. Expect temperatures of between 11ºC and 29ºC.

  • Look for cheap tickets from STL to STS in February if you like travelling in cooler conditions. Temperatures are at their lowest then, ranging between 2ºC and 19ºC on average.

Explore more of the United States

  • You've done Santa Rosa, now it's time to discover other corners of the United States. Travel around 145 kilometres south-east to San Jose to tick off its top sights. From Winchester Mystery House to The Tech Interactive and Santa Clara Valley, there's plenty to keep you busy.

  • If you want to check out another side of the United States, head for San Francisco, roughly 80 kilometres south of Santa Rosa. Golden Gate Bridge, Painted Ladies - Alamo Square and Alcatraz Island are key highlights.

Prices shown on this page are estimated lowest prices only. Found in the last 12 days.