The cheapest times to fly from STS to YUL are

  • January 1st to March 4th
  • August 13th to December 9th (except the weeks of November 19th and November 26th)

based on data collected exclusively by Champion Traveler across tens of millions of flights. Among all the dates above, the very cheapest time to fly from STS to YUL is late January and early February. Prices can be as high as $1215 for Sunday flights during early to mid May, or as low as $533 for Tuesday flights around late January and early February.


When to Fly to Montreal

Flying from Santa Rosa, CA (STS) to Montreal (YUL) will usually cost between $548 to $1040 per person if booking more than four weeks in advance. On average the very cheapest time to fly is late January and early February with an average ticket price of $577. Due to high demand the most expensive time to fly is early to mid May, with an average price of $1008. Planning your trip to low-cost times can easily save you $431 on economy flights and even more on first-class flights. Generally, any price below $786 can be considered a good price for a round-trip STS to YUL flight.

See below for a graph of average weekly prices for the STS to YUL route. All prices are for round-trip tickets in USD.

STS to YUL Flight Prices

Compared to other flights, the STS to YUL flight is cheaper than the average and costs less than the average flight leaving from Santa Rosa. The average price per mile (for a direct flight) is $0.19, which is below average.


Flight Prices by Day of the Week

Tuesday is usually the cheapest day to depart and return on this flight. Sundays are the most expensive days to fly out or take a return trip. Selecting flights on the least expensive days could save you up to $253 (28%) on this flight.

Departing prices are for round-trip flights returning on the day of departure. For example, a flight departing on Tuesday and returning a week later will cost an average of $669. Return trip prices are from the YUL to STS flight, and often highlight the quality of our data in showing the same trend.

Departing Prices by Day

Departure Day Prices

Return Trip Prices by Day

Return Day Prices


Nonstop Flights and Layovers

Travelers looking to fly from STS to YUL can generally find a 1-layover flight. Because there is not usually a direct flight option the real-world direct flight time of 5 hour 32 minutes may not be realistic.


Alternative Nearby Airports

Champion Traveler tells you which airports are nearby and whether tickets might be cheaper alternative airports nearby. Sometimes it’s worth it to fly into a closer airport and then commute to your destination. Remember that there is not usually a nonstop flight from STS to YUL while comparing.

Destination alternative #1: Burlington International Airport (BTV) in Burlington, VT

  • 75 miles (121 km) away from YUL
  • Usually 17.68% less expensive than YUL
  • 2-layover flights available

See STS to BTV flights

Destination alternative #2: Ottawa Macdonald Cartier International Airport (YOW) in Ottawa

  • 94 miles (151 km) away from YUL
  • Usually 5.09% less expensive than YUL
  • 2-layover flights available

See STS to YOW flights


Flight Hacking STS to YUL

Flight hacking is when you book two tickets instead of a layover, sometimes with different airlines. You will need to either bring only a carry-on bag (highly recommended) or leave yourself plenty of time to go through security again. Flight hacking is completely allowed, but airlines don’t always tell you the cheapest way to get from STS to YUL — but Champion Traveler does!

Hack #1: Los Angeles, CA (STS > LAX > YUL)

  • Price for both tickets: $620
  • Average savings: $167 (21.18%)

See STS to LAX flights

Hack #2: Newark, NJ (STS > EWR > YUL)

  • Price for both tickets: $696
  • Average savings: $90 (11.45%)

See STS to EWR flights

Hack #3: Portland, OR (STS > PDX > YUL)

  • Price for both tickets: $705
  • Average savings: $81 (10.31%)

See STS to PDX flights


Flight Questions Answered

Still have questions about flying from STS to YUL? We’ve got answers.

Which airlines fly this route?

You can find 6 major airlines flying this route most often: Air Canada, Alaska, American, Avianca, Delta, United, and potentially more during busy seasons.

How far away is it from Pierre Elliott Trudeau International Airport to Charles M. Schulz – Sonoma County Airport?

The distance between the two airports is roughly 2525 miles or 4064 kilometers.

How long does it take to fly from STS to YUL?

The real-world flight time for a nonstop STS to YUL flight is about 5 hour 32 minutes.

How many flights go between Santa Rosa, CA and Montreal?

It depends on the day of the week and the date, but a typical day might have around 17 available flights from STS to YUL.


Airport Location Info


Departing Airport

Origination codeSTS
Origination airport nameCharles M. Schulz – Sonoma County Airport
CitySanta Rosa, CA
Countrythe United States

Return Airport

Destination codeYUL
Destination airport namePierre Elliott Trudeau International Airport


Other Resources

Please note that while we’ve worked hard to analyzed tens of millions of flights to get you this data, we do not calculate current live prices or guarantee pricing. Please see our partners using the links above for current offers.