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Pierre Elliott Trudeau Intl

$380+ Cheap flights from Santa Rosa (STS) to Pierre Elliott Trudeau Intl (YUL)

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 6/12. Fares are subject to change and may not be available on all flights or dates of travel.
STS — YUL
Feb 25 — Mar 41
Wed 2/25
Wed 3/4
1 adult, Economy
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Cheap flight deals from Santa Rosa to Pierre Elliott Trudeau Intl

Cheapest flights from Santa Rosa to Pierre Elliott Trudeau Intl
Explore the most affordable flight options available from Santa Rosa to Pierre Elliott Trudeau Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 26, 2026.

This American Airlines deal was found by Cheapflights users on 1/24. 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.
Sat 6/61:05 pm
STS
-
YUL
1 stop22h 36m
American Airlines
Tue 6/93:45 pm
YUL
-
STS
1 stop23h 40m
American Airlines
Deal found 1/24$809
This American Airlines deal was found by Cheapflights users on 1/24. 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.
Wed 3/114:23 pm
STS
-
YUL
2 stops19h 42m
American Airlines
Tue 3/1712:59 pm
YUL
-
STS
2 stops26h 27m
American Airlines
Deal found 1/24$824

Find flight deals from Santa Rosa to Pierre Elliott Trudeau Intl

Discover tips and strategies to find the most affordable flight options for your journey from Santa Rosa (STS) to Pierre Elliott Trudeau Intl (YUL). 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 January 26, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$809
(American Airlines)

One-way from

$380
(American Airlines)

Popular in

December

Cheapest in

April

Average price

$532
Provider with most accurate pricing for San Francisco-Montreal (YMQ) flight deals.
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Provider most trusted by Cheapflights users for San Francisco-Montreal (YMQ) flights.
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From Santa Rosa Sonoma County to Montreal Pierre Elliott Trudeau Intl
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One-way flight from Santa Rosa Sonoma County to Montreal Pierre Elliott Trudeau Intl
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Highest demand for flights based on searches. 4% potential increase in price ($26 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($9 potential savings vs. average RT price).
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Average for round-trip flights in January 2026
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Santa Rosa to Pierre Elliott Trudeau Intl 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 January 26, 2026.
Use the filters below to find and compare flights from Santa Rosa to Montreal Pierre Elliott Trudeau Intl Airport that are best for you.

Fly from

Santa Rosa

Fly to

Pierre Elliott Trudeau Intl

Route

Depart

Return

Price

Santa RosaMontreal

STS - YUL

STSYUL

Santa Rosa Sonoma County

Sat 6/6

1:05 pm-2:41 pm

1 stop22h 36m

Montreal Pierre Elliott Trudeau Intl

Tue 6/9

3:45 pm-12:25 pm

1 stop23h 40m

$809

Santa RosaMontreal

STS - YUL

STSYUL

Santa Rosa Sonoma County

Sat 6/6

1:05 pm-2:41 pm

1 stop22h 36m

Montreal Pierre Elliott Trudeau Intl

Wed 6/10

3:45 pm-12:25 pm

1 stop23h 40m

$809

Santa RosaMontreal

STS - YUL

STSYUL

Santa Rosa Sonoma County

Thu 6/18

1:05 pm-11:44 am

2 stops19h 39m

Montreal Pierre Elliott Trudeau Intl

Tue 6/23

3:45 pm-12:25 pm

1 stop23h 40m

$819

Santa RosaMontreal

STS - YUL

STSYUL

Santa Rosa Sonoma County

Wed 6/17

1:05 pm-4:57 pm

2 stops24h 52m

Montreal Pierre Elliott Trudeau Intl

Tue 6/23

3:45 pm-12:25 pm

1 stop23h 40m

$819

Santa RosaMontreal

STS - YUL

STSYUL

Santa Rosa Sonoma County

Thu 3/12

4:23 pm-3:05 pm

2 stops19h 42m

Montreal Pierre Elliott Trudeau Intl

Tue 3/17

3:45 pm-12:26 pm

2 stops23h 41m

$824

Santa RosaMontreal

STS - YUL

STSYUL

Santa Rosa Sonoma County

Fri 3/13

12:56 pm-3:04 pm

2 stops23h 08m

Montreal Pierre Elliott Trudeau Intl

Mon 3/16

3:57 pm-12:26 pm

2 stops23h 29m

$824

Santa RosaMontreal

STS - YUL

STSYUL

Santa Rosa Sonoma County

Wed 3/11

4:23 pm-3:05 pm

2 stops19h 42m

Montreal Pierre Elliott Trudeau Intl

Tue 3/17

12:59 pm-12:26 pm

2 stops26h 27m

$824

Santa RosaMontreal

STS - YUL

STSYUL

Santa Rosa Sonoma County

Wed 3/11

12:56 pm-3:05 pm

2 stops23h 09m

Montreal Pierre Elliott Trudeau Intl

Mon 3/16

3:57 pm-12:26 pm

2 stops23h 29m

$824

Santa RosaMontreal

STS - YUL

STSYUL

Santa Rosa Sonoma County

Wed 3/11

4:23 pm-3:05 pm

2 stops19h 42m

Montreal Pierre Elliott Trudeau Intl

Wed 3/18

2:25 pm-12:26 pm

2 stops25h 01m

$824

Santa RosaMontreal

STS - YUL

STSYUL

Santa Rosa Sonoma County

Thu 3/12

4:23 pm-3:05 pm

2 stops19h 42m

Montreal Pierre Elliott Trudeau Intl

Mon 3/16

3:57 pm-12:26 pm

2 stops23h 29m

$824

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/26

Showing 1-10 of 21 results
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Best time to book a flight from Santa Rosa to Pierre Elliott Trudeau Intl

Have a flexible travel schedule? Discover the best time to fly to Pierre Elliott Trudeau Intl from Santa Rosa 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 Santa Rosa to Montreal Pierre Elliott Trudeau Intl Airport

What is the cheapest month to book a flight from Santa Rosa to Montreal Pierre Elliott Trudeau Intl Airport?

Currently, June is the cheapest month in which you can book a flight from Santa Rosa to Montreal Pierre Elliott Trudeau Intl Airport (average of $165). Flying from Santa Rosa to Montreal Pierre Elliott Trudeau Intl Airport in November is currently the most expensive (average of $327). 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.

Related info for your journey

Find useful and relevant information for your journey from Santa Rosa to Pierre Elliott Trudeau Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Santa Rosa to Montreal Pierre Elliott Trudeau Intl?

    If you book a flight to Montreal Pierre Elliott Trudeau Intl from Santa Rosa, you will be flying from Sonoma County, which is the city’s only airport. Santa Rosa Sonoma County (STS) is located 7.2 mi from the center of Santa Rosa. There are 0 flights from Sonoma County to Montreal Pierre Elliott Trudeau Intl per day from 0 different airlines.

  • How long is the flight from Santa Rosa to Montreal Pierre Elliott Trudeau Intl Airport?

    For as low as $809, American Airlines can have you in Montreal Pierre Elliott Trudeau Intl Airport from Santa Rosa in 22h 36m. The distance between Santa Rosa and Montreal Pierre Elliott Trudeau Intl Airport is about 2523 mi.

  • Can I find deals for flights from Santa Rosa to Pierre Elliott Trudeau Intl that include hotel bookings?

    Yes. In addition to deals on Santa Rosa to Pierre Elliott Trudeau Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Santa Rosa to Pierre Elliott Trudeau Intl?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Santa Rosa to Pierre Elliott Trudeau Intl.

  • Can I find deals for business class flights from Santa Rosa to Pierre Elliott Trudeau Intl?

    Yes. Cheapflights offers flight deals from Santa Rosa to Pierre Elliott Trudeau Intl 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 Santa Rosa to Montreal Pierre Elliott Trudeau Intl Airport?

    Currently, June is the cheapest month in which you can book a flight from Santa Rosa to Montreal Pierre Elliott Trudeau Intl Airport (average of $165). Flying from Santa Rosa to Montreal Pierre Elliott Trudeau Intl Airport in November is currently the most expensive (average of $327). 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 Montreal Pierre Elliott Trudeau Intl Airport?

Book flights to Montreal Pierre Elliott Trudeau Intl Airport if you plan to visit one of these locations
Laval
Longueuil
Brossard
Dorval

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