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 11/1. Fares are subject to change and may not be available on all flights or dates of travel.
YMQ — SFO
17 Jan — 24 Jan1
Round-trip
1 adult
Economy
Round-trip
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Montreal to Sonoma are usually found in February or May, booked 50 days in advance, depart on a Friday or Thursday and return on a Friday
Cheap flight deals from Montreal to Sonoma
Enter your travel dates to find the best prices.
Cheapest flights from Montreal to Sonoma
Explore the most affordable flight options available from Montreal to Sonoma. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 December 2025.
Tue 23/122:13 p.m.YUL - SFO
1 stop10h 07mUnited Airlines
Tue 13/19:20 p.m.SFO - YUL
1 stop14h 56mUnited Airlines
Deal found 16/12C$ 744
Wed 24/126:45 a.m.YUL - SFO
1 stop8h 55mPorter Airlines
Tue 30/121:40 p.m.SFO - YUL
1 stop7h 55mPorter Airlines
Deal found 17/12C$ 752
Tue 23/129:15 a.m.YUL - SFO
1 stop15h 05mUnited Airlines
Wed 7/19:23 p.m.SFO - YUL
2 stops13h 37mUnited Airlines
Deal found 16/12C$ 777
Wed 24/125:50 p.m.YUL - SFO
Nonstop6h 32mAir Canada
Tue 6/17:30 a.m.SFO - YUL
1 stop10h 25mAir Canada
Deal found 16/12C$ 781
Mon 29/126:45 a.m.YUL - SFO
1 stop8h 55mMultiple Airlines
Sun 18/11:00 p.m.SFO - YUL
1 stop15h 05mMultiple Airlines
Deal found 17/12C$ 788
Mon 22/127:30 a.m.YUL - SFO
1 stop11h 05mMultiple Airlines
Sun 18/11:00 p.m.SFO - YUL
1 stop15h 05mMultiple Airlines
Deal found 16/12C$ 794
Wed 24/129:15 a.m.YUL - SFO
1 stop15h 05mUnited Airlines
Wed 31/1210:35 a.m.SFO - YUL
1 stop7h 42mUnited Airlines
Deal found 16/12C$ 796
Mon 22/127:30 a.m.YUL - SFO
1 stop11h 05mMultiple Airlines
Sat 17/11:45 p.m.SFO - YUL
1 stop7h 50mMultiple Airlines
Deal found 16/12C$ 816
Wed 24/125:50 p.m.YUL - SFO
Nonstop6h 32mAir Canada
Thu 1/18:25 a.m.SFO - YUL
Nonstop5h 24mAir Canada
Deal found 16/12C$ 821
Thu 25/125:25 p.m.YUL - SFO
1 stop8h 40mUnited Airlines
Wed 7/15:00 a.m.SFO - YUL
2 stops9h 55mUnited Airlines
Deal found 16/12C$ 828
Wed 24/124:45 p.m.YUL - SFO
1 stop10h 18mUnited Airlines
Mon 5/111:55 p.m.SFO - YUL
1 stop10h 33mUnited Airlines
Deal found 16/12C$ 829
Best flights from Montreal to Sonoma
Discover carefully curated flight deals from Montreal to Sonoma that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 18 December 2025.
Thu 15/16:45 a.m.YUL - SFO
1 stop8h 58mPorter Airlines
Sun 18/11:45 p.m.SFO - YUL
1 stop7h 50mPorter Airlines
Deal found 15/12C$ 551
Wed 14/16:45 a.m.YUL - SFO
3 stops32h 27mWestJet
Tue 20/11:00 p.m.SFO - YUL
2 stops32h 43mWestJet
Deal found 17/12C$ 587
Thu 8/12:40 p.m.YUL - SFO
1 stop9h 19mDelta
Wed 14/18:00 a.m.SFO - YUL
1 stop12h 50mDelta
Deal found 16/12C$ 594
Fri 17/46:30 p.m.YUL - SFO
1 stop9h 46mUnited Airlines
Mon 20/46:30 a.m.SFO - YUL
2 stops25h 07mUnited Airlines
Deal found 16/12C$ 594
Wed 14/15:50 p.m.YUL - SFO
Nonstop6h 32mAir Canada
Tue 20/18:25 a.m.SFO - YUL
Nonstop5h 24mAir Canada
Deal found 17/12C$ 597
Fri 3/412:59 p.m.YUL - SFO
1 stop9h 11mAmerican Airlines
Sat 4/412:30 a.m.SFO - YUL
1 stop11h 38mAmerican Airlines
Deal found 17/12C$ 616
Tue 17/25:50 p.m.YUL - SFO
Nonstop6h 32mAir Canada
Wed 4/37:30 a.m.SFO - YUL
1 stop8h 55mAir Canada
Deal found 17/12C$ 597
Fri 9/17:00 a.m.YUL - SFO
2 stops13h 50mUnited Airlines
Sun 11/110:35 p.m.SFO - YUL
1 stop13h 41mUnited Airlines
Deal found 17/12C$ 605
Thu 15/112:54 p.m.YUL - SFO
1 stop13h 31mDelta
Sun 18/110:54 p.m.SFO - YUL
2 stops16h 43mDelta
Deal found 15/12C$ 606
Thu 2/412:59 p.m.YUL - SFO
1 stop9h 11mAmerican Airlines
Sat 4/412:30 a.m.SFO - YUL
1 stop11h 38mAmerican Airlines
Deal found 17/12C$ 616
Mon 12/17:30 p.m.YUL - SFO
2 stops26h 08mDelta
Sun 18/110:54 p.m.SFO - YUL
2 stops16h 43mDelta
Deal found 16/12C$ 620
Direct flights from Montreal to Sonoma
Explore direct flight options from Montreal to Sonoma based on user searches, and compare prices and availability for your desired travel dates. Data last updated 18 December 2025.
Mon 12/15:50 p.m.YUL - SFO
Nonstop6h 32mAir Canada
Sun 18/18:25 a.m.SFO - YUL
Nonstop5h 24mAir Canada
Deal found 16/12C$ 558
Thu 22/15:50 p.m.YUL - SFO
Nonstop6h 32mAir Canada
Thu 29/18:25 a.m.SFO - YUL
Nonstop5h 24mAir Canada
Deal found 16/12C$ 566
Sat 21/25:50 p.m.YUL - SFO
Nonstop6h 32mAir Canada
Wed 4/38:25 a.m.SFO - YUL
Nonstop5h 24mAir Canada
Deal found 16/12C$ 568
Mon 26/15:50 p.m.YUL - SFO
Nonstop6h 32mAir Canada
Thu 29/18:25 a.m.SFO - YUL
Nonstop5h 24mAir Canada
Deal found 17/12C$ 577
Mon 12/15:50 p.m.YUL - SFO
Nonstop6h 32mAir Canada
Wed 4/28:25 a.m.SFO - YUL
Nonstop5h 24mAir Canada
Deal found 17/12C$ 579
Fri 30/15:50 p.m.YUL - SFO
Nonstop6h 32mAir Canada
Fri 6/28:25 a.m.SFO - YUL
Nonstop5h 24mAir Canada
Deal found 15/12C$ 583
Tue 13/15:50 p.m.YUL - SFO
Nonstop6h 32mAir Canada
Tue 20/18:25 a.m.SFO - YUL
Nonstop5h 24mAir Canada
Deal found 16/12C$ 586
Thu 15/15:50 p.m.YUL - SFO
Nonstop6h 32mAir Canada
Sun 18/18:25 a.m.SFO - YUL
Nonstop5h 24mAir Canada
Deal found 15/12C$ 587
Wed 14/15:50 p.m.YUL - SFO
Nonstop6h 32mAir Canada
Tue 20/18:25 a.m.SFO - YUL
Nonstop5h 24mAir Canada
Deal found 17/12C$ 597
Last-minute flights from Montreal to Sonoma
Discover last-minute flight deals from Montreal to Sonoma. Data last updated 18 December 2025 and is based on user searches.
Wed 7/16:45 a.m.YUL - SFO
2 stops11h 21mMultiple Airlines
Sat 17/110:15 a.m.SFO - YUL
1 stop27h 12mMultiple Airlines
Deal found 18/12C$ 540
Wed 7/14:35 p.m.YUL - SFO
2 stops23h 43mMultiple Airlines
Thu 15/11:45 p.m.SFO - YUL
1 stop7h 50mMultiple Airlines
Deal found 18/12C$ 544
Thu 8/16:45 a.m.YUL - SFO
1 stop8h 58mMultiple Airlines
Wed 14/12:24 p.m.SFO - YUL
2 stops13h 41mMultiple Airlines
Deal found 18/12C$ 554
Thu 8/16:45 a.m.YUL - SFO
2 stops14h 35mMultiple Airlines
Sun 11/11:00 p.m.SFO - YUL
1 stop15h 05mMultiple Airlines
Deal found 16/12C$ 555
Thu 8/16:45 a.m.YUL - SFO
2 stops14h 35mMultiple Airlines
Fri 16/11:00 p.m.SFO - YUL
1 stop15h 05mMultiple Airlines
Deal found 17/12C$ 557
Fri 9/15:55 p.m.YUL - SFO
1 stop18h 35mMultiple Airlines
Tue 13/11:00 p.m.SFO - YUL
1 stop15h 05mMultiple Airlines
Deal found 17/12C$ 535
Sat 10/16:45 a.m.YUL - SFO
2 stops17h 17mMultiple Airlines
Thu 15/11:45 p.m.SFO - YUL
1 stop7h 50mMultiple Airlines
Deal found 18/12C$ 548
Sun 11/15:25 p.m.YUL - SFO
1 stop22h 18mMultiple Airlines
Wed 14/12:24 p.m.SFO - YUL
2 stops13h 41mMultiple Airlines
Deal found 18/12C$ 537
Sun 11/14:35 p.m.YUL - SFO
2 stops23h 43mMultiple Airlines
Fri 16/11:00 p.m.SFO - YUL
1 stop15h 05mMultiple Airlines
Deal found 18/12C$ 539
Mon 12/16:45 a.m.YUL - SFO
1 stop8h 58mPorter Airlines
Wed 4/21:45 p.m.SFO - YUL
1 stop7h 50mPorter Airlines
Deal found 17/12C$ 543
Sun 18/17:30 a.m.YUL - SFO
2 stops14h 49mAmerican Airlines
Thu 22/19:10 a.m.SFO - YUL
2 stops10h 34mAmerican Airlines
Deal found 15/12C$ 550
One-way flights from Montreal to Sonoma
Search for one-way flight options from Montreal to Sonoma. Find affordable one-way fares based on user searches. Data last updated 18 December 2025.
Sun 11/14:35 p.m.YUL - SFO
2 stops23h 43mMultiple Airlines
Deal found 17/12C$ 340
Wed 7/12:25 p.m.YUL - SFO
1 stop11h 00mAmerican Airlines
Deal found 16/12C$ 342
Thu 8/12:40 p.m.YUL - SFO
1 stop12h 07mDelta
Deal found 17/12C$ 343
Fri 13/24:35 p.m.YUL - SFO
2 stops34h 53mMultiple Airlines
Deal found 15/12C$ 346
Tue 6/16:45 a.m.YUL - SFO
3 stops52h 08mMultiple Airlines
Deal found 17/12C$ 347
Sun 11/17:00 a.m.YUL - SFO
1 stop18h 28mAmerican Airlines
Deal found 17/12C$ 349
Wed 7/14:45 p.m.YUL - SFO
2 stops17h 29mUnited Airlines
Deal found 16/12C$ 351
Wed 29/45:30 p.m.YUL - SFO
3 stops23h 27mWestJet
Deal found 17/12C$ 353
Sat 28/210:15 a.m.YUL - SFO
2 stops14h 46mMultiple Airlines
Deal found 17/12C$ 354
Sat 10/17:00 a.m.YUL - SFO
2 stops13h 50mUnited Airlines
Deal found 16/12C$ 355
Sat 10/110:15 a.m.YUL - SFO
3 stops24h 48mMultiple Airlines
Deal found 17/12C$ 358
Thu 30/45:30 p.m.YUL - SFO
3 stops23h 27mWestJet
Deal found 15/12C$ 360
Find flight deals from Montreal to Sonoma
Keep the following information in mind while searching for Montreal to Sonoma flight deals. Data was last updated 18 December 2025.
Customize your flight search to find flights from Montreal to Sonoma 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 629,999 searches. Data last updated 18 December 2025.
Use the filters below to find and compare flights from Montreal to Sonoma that are best for you.
Fly from
Montreal
Fly to
Sonoma
Route
Depart
Return
Price
MontrealSan Francisco
YUL - SFO
YULSFO
Montreal Pierre Elliott Trudeau Intl
Thu 15/1
6:45 a.m.-12:43 p.m.
1 stop8h 58m
San Francisco
Sun 18/1
1:45 p.m.-12:35 a.m.
1 stop7h 50m
C$ 551
MontrealSan Francisco
YUL - SFO
YULSFO
Montreal Pierre Elliott Trudeau Intl
Wed 14/1
6:45 a.m.-12:12 p.m.
3 stops32h 27m
San Francisco
Tue 20/1
1:00 p.m.-12:43 a.m.
2 stops32h 43m
C$ 587
MontrealSan Francisco
YUL - SFO
YULSFO
Montreal Pierre Elliott Trudeau Intl
Thu 8/1
2:40 p.m.-8:59 p.m.
1 stop9h 19m
San Francisco
Wed 14/1
8:00 a.m.-11:50 p.m.
1 stop12h 50m
C$ 594
MontrealSan Francisco
YUL - SFO
YULSFO
Montreal Pierre Elliott Trudeau Intl
Fri 17/4
6:30 p.m.-1:16 a.m.
1 stop9h 46m
San Francisco
Mon 20/4
6:30 a.m.-10:37 a.m.
2 stops25h 07m
C$ 594
MontrealSan Francisco
YUL - SFO
YULSFO
Montreal Pierre Elliott Trudeau Intl
Wed 14/1
5:50 p.m.-9:22 p.m.
Nonstop6h 32m
San Francisco
Tue 20/1
8:25 a.m.-4:49 p.m.
Nonstop5h 24m
C$ 597
MontrealSan Francisco
YUL - SFO
YULSFO
Montreal Pierre Elliott Trudeau Intl
Tue 17/2
5:50 p.m.-9:22 p.m.
Nonstop6h 32m
San Francisco
Wed 4/3
7:30 a.m.-7:25 p.m.
1 stop8h 55m
C$ 597
MontrealSan Francisco
YUL - SFO
YULSFO
Montreal Pierre Elliott Trudeau Intl
Fri 9/1
7:00 a.m.-5:50 p.m.
2 stops13h 50m
San Francisco
Sun 11/1
10:35 p.m.-3:16 p.m.
1 stop13h 41m
C$ 605
MontrealSan Francisco
YUL - SFO
YULSFO
Montreal Pierre Elliott Trudeau Intl
Thu 15/1
12:54 p.m.-11:25 p.m.
1 stop13h 31m
San Francisco
Sun 18/1
10:54 p.m.-6:37 p.m.
2 stops16h 43m
C$ 606
MontrealSan Francisco
YUL - SFO
YULSFO
Montreal Pierre Elliott Trudeau Intl
Fri 3/4
12:59 p.m.-7:10 p.m.
1 stop9h 11m
San Francisco
Sat 4/4
12:30 a.m.-3:08 p.m.
1 stop11h 38m
C$ 616
MontrealSan Francisco
YUL - SFO
YULSFO
Montreal Pierre Elliott Trudeau Intl
Thu 2/4
12:59 p.m.-7:10 p.m.
1 stop9h 11m
San Francisco
Sat 4/4
12:30 a.m.-3:08 p.m.
1 stop11h 38m
C$ 616
Flights are sorted by cheapest round-trip flights first.
Deals found on 17/12
Showing 1-10 of 22 results
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Best time to book a flight from Montreal to Sonoma
Have a flexible travel schedule? Discover the best time to fly to Sonoma from Montreal 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 to Sonoma
How far ahead should I book a flight from Montreal to Sonoma?
Use this chart to determine the optimal time to book a round-trip flight from Montreal to Sonoma. Price data was last updated on 12 December 2025.
The price you pay for your flight from Montreal to Sonoma may vary depending on when you book. For the best chance of a lower fare, look to book 49 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
What is the cheapest month to book a flight from Montreal to Sonoma?
Currently, December is the cheapest month in which you can book a flight from Montreal to Sonoma (average of C$ 205). Flying from Montreal to Sonoma in October is currently the most expensive (average of C$ 402). 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.
What is the cheapest time of day to fly from YMQ to SN9?
Find hourly flight availability from Montreal to Sonoma. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 18 December 2025.
It’s typically best to fly out from Montreal to Sonoma in the morning. Doing so could potentially save you 54% on the flight price compared to flying in the evening, which is usually more expensive.
What is the cheapest day to fly from Montreal to Sonoma?
Use this chart to determine the cheapest time to fly round-trip from Montreal to Sonoma. Price data was last updated on 16 December 2024.
Travelers seeking maximum savings on their Montreal to Sonoma flight should consider departing on Wednesday evenings when fares are most often at their lowest. Monday evenings flights should be avoided if possible as fares are typically the most expensive at this time.
Weekly flight availability from Montreal to Sonoma
Explore weekly flight availability from Montreal to Sonoma. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 18 December 2025.
The most flights from YMQ to SN9 are scheduled on a Monday (4 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (4 on average).
Reviews of airlines servicing Sonoma
Get insights into the airlines that provide service to Sonoma. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Sonoma. Reviews last updated 18 December 2025.
Read reviews from past customers who have flown Porter Airlines,United Airlines, andWestJet
from Montreal to Sonoma. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
It's good. Planes are new and fresh. WiFi is best and stands out
Related info for your journey
Find useful and relevant information for your journey from Montreal to Sonoma. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
How long is the flight from Montreal to Sonoma?
Airlines like Porter Airlines, WestJet, and Delta fly from Montreal to Sonoma in about 8h 58m. The time it takes to get you to your destination can typically vary by up to 23h 29m. There are 4073 km between Montreal and Sonoma. This flight may include one or multiple stops.
What are the cheapest airlines to fly from Montreal to Sonoma one-way?
The cheapest airline one-way is Porter Airlines, with whom users have recently found tickets for as low as C$ 204. However, be on the lookout for offers from Air Canada and United Airlines, as they are both options that can get you from Montreal to Sonoma for a low price.
What are the most reliable airlines from Montreal to Sonoma?
Consider Air New Zealand (79%), Brussels Airlines (78%) or Air Canada (73%) when booking your flight. These represent the most reliable airlines when flying from Montreal to Sonoma.
What are the cheapest flights from Montreal to Sonoma?
Looking at all options, your cheapest flight can be booked for C$ 360. While the most popular route (Montreal Pierre Elliott Trudeau Intl - San Francisco) can be booked for C$ 350 on average, our data indicates C$ 861 when flying from Montreal to Sonoma.
Can I find deals for business class flights from Montreal to Sonoma?
Yes. Cheapflights offers flight deals from Montreal to Sonoma 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 to Sonoma?
Currently, December is the cheapest month in which you can book a flight from Montreal to Sonoma (average of C$ 205). Flying from Montreal to Sonoma in October is currently the most expensive (average of C$ 402). 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.
Browse through other flights departing from Montreal. Flights are based on user searches made on Cheapflights and were last updated on 18 December 2025.
Discover the top 6 airlines that operate flights from Montreal to Sonoma. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 629,999 searches. Data last updated 18 December 2025.
Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.
How does Cheapflights help users find flights from Montreal to Sonoma?
Cheapflights helps you search for flights from Montreal to Sonoma via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.
Why should you use Cheapflights to find cheap flight tickets from Montreal to Sonoma?
By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Sonoma from Montreal.
Can Cheapflights find flights from Montreal to Sonoma with no change fees?
Yes! Cheapflights helps users easily find flights from Montreal to Sonoma with no change fees.
Can Cheapflights notify me if prices for flights from Montreal to Sonoma become cheaper?
Not ready to book yet? You can track prices for flights from Montreal to Sonoma on Cheapflights with our Price Alert feature and get notified when better prices are available.
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