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$397+ Cheap flights from Pierre Elliott Trudeau Intl (YUL) to Santa Rosa (STS)

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 12/15. Fares are subject to change and may not be available on all flights or dates of travel.
YUL — STS
Dec 31 — Jan 71
Wed 12/31
Wed 1/7
1 adult, Economy
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Cheap flight deals from Pierre Elliott Trudeau Intl to Santa Rosa

Discover tips and strategies to find the most affordable flight options for your journey from Pierre Elliott Trudeau Intl (YUL) to Santa Rosa (STS). 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 December 1, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$691
(American Airlines)

One-way from

$397
(American Airlines)

Popular in

December

Cheapest in

February

Average price

$536
Provider with most accurate pricing for Montreal Pierre Elliott Trudeau Intl-Santa Rosa Sonoma County flight deals.
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Provider most trusted by Cheapflights users for Montreal Pierre Elliott Trudeau Intl-Santa Rosa Sonoma County flights.
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From Montreal Pierre Elliott Trudeau Intl to Santa Rosa Sonoma County
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One-way flight from Montreal Pierre Elliott Trudeau Intl to Santa Rosa Sonoma County
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Highest demand for flights based on searches. 8% potential increase in price ($38 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($11 potential savings vs. average RT price).
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Average for round-trip flights in December 2025
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Find flight deals from Pierre Elliott Trudeau Intl to Santa Rosa

Cheapest flights from Pierre Elliott Trudeau Intl to Santa Rosa
Explore the most affordable flight options available from Pierre Elliott Trudeau Intl to Santa Rosa. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 1, 2025.

This American Airlines deal was found by Cheapflights users on 11/30. 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.
Mon 12/157:30 amYUL - STS
2 stops31h 57mAmerican Airlines
Tue 1/1312:55 pmSTS - YUL
2 stops23h 13mAmerican Airlines
Deal found 11/30$714
This American Airlines deal was found by Cheapflights users on 11/30. 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.
Sun 12/142:29 pmYUL - STS
2 stops24h 58mAmerican Airlines
Thu 1/84:23 pmSTS - YUL
2 stops19h 45mAmerican Airlines
Deal found 11/30$716
This American Airlines deal was found by Cheapflights users on 11/30. 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.
Thu 12/113:50 pmYUL - STS
2 stops23h 37mAmerican Airlines
Tue 1/134:23 pmSTS - YUL
2 stops19h 45mAmerican Airlines
Deal found 11/30$744
This American Airlines deal was found by Cheapflights users on 11/30. 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.
Thu 12/113:50 pmYUL - STS
2 stops23h 37mAmerican Airlines
Thu 1/84:23 pmSTS - YUL
2 stops17h 01mAmerican Airlines
Deal found 11/30$746
This American Airlines deal was found by Cheapflights users on 11/30. 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.
Sun 12/147:30 amYUL - STS
2 stops31h 57mAmerican Airlines
Fri 1/912:55 pmSTS - YUL
2 stops23h 25mAmerican Airlines
Deal found 11/30$794
This American Airlines deal was found by Cheapflights users on 11/30. 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.
Fri 12/123:50 pmYUL - STS
2 stops47h 37mAmerican Airlines
Tue 1/134:23 pmSTS - YUL
2 stops19h 45mAmerican Airlines
Deal found 11/30$807
This American Airlines deal was found by Cheapflights users on 11/30. 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.
Fri 12/123:50 pmYUL - STS
2 stops47h 37mAmerican Airlines
Wed 1/74:23 pmSTS - YUL
2 stops19h 45mAmerican Airlines
Deal found 11/30$821
This American Airlines deal was found by Cheapflights users on 11/30. 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.
Fri 12/123:50 pmYUL - STS
2 stops47h 37mAmerican Airlines
Thu 1/84:23 pmSTS - YUL
2 stops19h 45mAmerican Airlines
Deal found 11/30$823
This American Airlines deal was found by Cheapflights users on 11/30. 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 12/137:30 amYUL - STS
2 stops31h 57mAmerican Airlines
Fri 1/912:55 pmSTS - YUL
2 stops23h 25mAmerican Airlines
Deal found 11/30$824
This American Airlines deal was found by Cheapflights users on 11/30. 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.
Thu 12/112:29 pmYUL - STS
2 stops24h 58mAmerican Airlines
Fri 1/94:23 pmSTS - YUL
2 stops18h 22mAmerican Airlines
Deal found 11/30$870

Cheapflights Fare Finder

 
Customize your flight search to find flights from Pierre Elliott Trudeau Intl to Santa Rosa 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 December 1, 2025.
Use the filters below to find and compare flights from Montreal Pierre Elliott Trudeau Intl Airport to Santa Rosa that are best for you.

Fly from

Pierre Elliott Trudeau Intl

Fly to

Santa Rosa

Route

Depart

Return

Price

MontrealSanta Rosa

YUL - STS

YULSTS

Montreal Pierre Elliott Trudeau Intl

Mon 1/12

3:50 pm-12:25 pm

2 stops23h 35m

Santa Rosa Sonoma County

Wed 1/14

12:55 pm-3:08 pm

2 stops23h 13m

$691

MontrealSanta Rosa

YUL - STS

YULSTS

Montreal Pierre Elliott Trudeau Intl

Mon 12/15

7:30 am-12:27 pm

2 stops31h 57m

Santa Rosa Sonoma County

Wed 1/7

4:23 pm-3:08 pm

2 stops19h 45m

$714

MontrealSanta Rosa

YUL - STS

YULSTS

Montreal Pierre Elliott Trudeau Intl

Wed 12/17

7:30 am-12:29 pm

2 stops31h 59m

Santa Rosa Sonoma County

Wed 1/7

12:55 pm-3:08 pm

2 stops23h 13m

$714

MontrealSanta Rosa

YUL - STS

YULSTS

Montreal Pierre Elliott Trudeau Intl

Wed 12/17

2:29 pm-12:29 pm

2 stops25h 00m

Santa Rosa Sonoma County

Sat 1/10

4:23 pm-3:08 pm

2 stops19h 45m

$714

MontrealSanta Rosa

YUL - STS

YULSTS

Montreal Pierre Elliott Trudeau Intl

Tue 12/16

12:59 pm-12:27 pm

2 stops26h 28m

Santa Rosa Sonoma County

Tue 1/13

12:55 pm-3:08 pm

2 stops23h 13m

$714

MontrealSanta Rosa

YUL - STS

YULSTS

Montreal Pierre Elliott Trudeau Intl

Sun 12/14

7:30 am-12:27 pm

2 stops31h 57m

Santa Rosa Sonoma County

Wed 1/7

12:55 pm-3:08 pm

2 stops23h 13m

$714

MontrealSanta Rosa

YUL - STS

YULSTS

Montreal Pierre Elliott Trudeau Intl

Mon 12/15

7:30 am-12:27 pm

2 stops31h 57m

Santa Rosa Sonoma County

Sat 1/10

4:23 pm-3:08 pm

2 stops19h 45m

$714

MontrealSanta Rosa

YUL - STS

YULSTS

Montreal Pierre Elliott Trudeau Intl

Wed 12/17

2:29 pm-12:29 pm

2 stops25h 00m

Santa Rosa Sonoma County

Mon 1/12

12:55 pm-3:08 pm

2 stops23h 13m

$716

MontrealSanta Rosa

YUL - STS

YULSTS

Montreal Pierre Elliott Trudeau Intl

Tue 12/16

2:29 pm-12:27 pm

2 stops24h 58m

Santa Rosa Sonoma County

Sun 1/11

12:55 pm-12:24 pm

2 stops20h 29m

$716

MontrealSanta Rosa

YUL - STS

YULSTS

Montreal Pierre Elliott Trudeau Intl

Tue 12/16

12:59 pm-12:27 pm

2 stops26h 28m

Santa Rosa Sonoma County

Mon 1/12

12:55 pm-1:45 pm

2 stops21h 50m

$716

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/30

Showing 1-10 of 17 results
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Compare providers for flights from Pierre Elliott Trudeau Intl to Santa Rosa

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Pierre Elliott Trudeau Intl to Santa Rosa in December.
ProviderPrice AccuracyTrust Score*
eDreamsPrice Accuracy3 starsTrust Score*3 stars
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Montreal Pierre Elliott Trudeau Intl Airport-Santa Rosa flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Montreal Pierre Elliott Trudeau Intl Airport-Santa Rosa flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Montreal Pierre Elliott Trudeau Intl Airport-Santa Rosa flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Montreal Pierre Elliott Trudeau Intl Airport-Santa Rosa flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Montreal Pierre Elliott Trudeau Intl Airport-Santa Rosa flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Pierre Elliott Trudeau Intl to Santa Rosa

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

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

Currently, December is the cheapest month in which you can book a flight from Montreal Pierre Elliott Trudeau Intl Airport to Santa Rosa (average of $149). Flying from Montreal Pierre Elliott Trudeau Intl Airport to Santa Rosa in October is currently the most expensive (average of $292). 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 Pierre Elliott Trudeau Intl to Santa Rosa. 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 into for flights to Santa Rosa from Montreal Pierre Elliott Trudeau Intl?

    If you book a flight to Santa Rosa from Montreal Pierre Elliott Trudeau Intl, you will be flying to 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 Montreal Pierre Elliott Trudeau Intl to Sonoma County per day from 0 different airlines.

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

    Departing from Montreal Pierre Elliott Trudeau Intl Airport to Santa Rosa will take you 23h 35m. Montreal Pierre Elliott Trudeau Intl Airport and Santa Rosa are separated by a distance of 2523 mi.

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

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

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

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

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

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

    Currently, December is the cheapest month in which you can book a flight from Montreal Pierre Elliott Trudeau Intl Airport to Santa Rosa (average of $149). Flying from Montreal Pierre Elliott Trudeau Intl Airport to Santa Rosa in October is currently the most expensive (average of $292). 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

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