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Cheap flights from Montreal to Sonoma from C$ 298

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 24/7. Fares are subject to change and may not be available on all flights or dates of travel.
YMQ — SFO
14 Jun — 21 Jun1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Montreal to Sonoma are usually found in October or August, booked 18 days in advance, depart on a Friday or Tuesday and return on a Monday

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 15 May 2026.

Thu 20/87:15 a.m.
YUL
-
SFO
1 stop17h 40m
WestJet
Sun 6/96:05 p.m.
SFO
-
YUL
1 stop10h 00m
WestJet
Deal found 11/5C$ 507
Mon 22/66:45 a.m.
YUL
-
SFO
2 stops18h 10m
WestJet
Tue 30/66:05 p.m.
SFO
-
YUL
1 stop10h 00m
WestJet
Deal found 10/5C$ 516
Wed 16/96:45 a.m.
YUL
-
SFO
1 stop8h 35m
Porter Airlines
Mon 21/91:20 p.m.
SFO
-
YUL
1 stop8h 17m
Porter Airlines
Deal found 10/5C$ 518
Wed 1/76:45 a.m.
YUL
-
SFO
2 stops18h 10m
WestJet
Sun 5/76:05 p.m.
SFO
-
YUL
2 stops19h 40m
WestJet
Deal found 12/5C$ 520
Sun 7/67:15 a.m.
YUL
-
SFO
1 stop31h 45m
WestJet
Wed 22/76:05 p.m.
SFO
-
YUL
1 stop10h 00m
WestJet
Deal found 12/5C$ 523
Thu 9/76:45 a.m.
YUL
-
SFO
2 stops12h 55m
WestJet
Tue 14/76:00 a.m.
SFO
-
YUL
2 stops15h 25m
WestJet
Deal found 13/5C$ 524
Wed 19/87:15 a.m.
YUL
-
SFO
1 stop12h 25m
WestJet
Tue 25/86:05 p.m.
SFO
-
YUL
1 stop10h 00m
WestJet
Deal found 12/5C$ 525
Wed 19/86:45 a.m.
YUL
-
SFO
2 stops12h 55m
WestJet
Sat 29/86:05 p.m.
SFO
-
YUL
1 stop10h 00m
WestJet
Deal found 12/5C$ 527
Mon 29/65:45 p.m.
YUL
-
SFO
2 stops31h 10m
WestJet
Mon 6/76:05 p.m.
SFO
-
YUL
2 stops19h 40m
WestJet
Deal found 14/5C$ 528
Thu 23/77:15 a.m.
YUL
-
SFO
1 stop17h 40m
WestJet
Mon 27/76:05 p.m.
SFO
-
YUL
1 stop10h 00m
WestJet
Deal found 13/5C$ 529
Tue 28/76:45 a.m.
YUL
-
SFO
2 stops18h 10m
WestJet
Fri 7/86:05 p.m.
SFO
-
YUL
2 stops19h 40m
WestJet
Deal found 13/5C$ 531

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 15 May 2026.

Round-trip from

C$ 506

One-way from

C$ 298

Popular in

December

Cheapest in

October

Average price

C$ 721
WestJet
  • WestJet
  • 20/8-26/8
  • 2 total stops
  • 18h 35m total
  • Montreal to Sonoma
Search Deals
WestJet
  • WestJet
  • 24/7
  • 2 total stops
  • 12h 55m total
  • Montreal to Sonoma
Search Deals
Highest demand for flights based on searches. 1% potential increase in price (C$ 11 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (C$ 12 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in May 2026
Search Deals

Cheapflights Fare Finder

 
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 15 May 2026.
Use the filters below to find and compare flights from Montreal to Sonoma that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

MontrealSan Francisco

YUL - SFO

YULSFO

Montreal Pierre Elliott Trudeau Intl

Fri 25/9

6:45 a.m.-12:20 p.m.

1 stop8h 35m

San Francisco

Mon 28/9

1:20 p.m.-12:37 a.m.

1 stop8h 17m

C$ 557

MontrealSan Francisco

YUL - SFO

YULSFO

Montreal Pierre Elliott Trudeau Intl

Tue 22/9

6:45 a.m.-12:20 p.m.

1 stop8h 35m

San Francisco

Wed 30/9

1:20 p.m.-12:37 a.m.

1 stop8h 17m

C$ 558

MontrealSan Francisco

YUL - SFO

YULSFO

Montreal Pierre Elliott Trudeau Intl

Wed 10/6

9:45 a.m.-12:45 a.m.

1 stop18h 00m

San Francisco

Sun 14/6

10:35 p.m.-4:10 p.m.

1 stop14h 35m

C$ 576

MontrealSan Francisco

YUL - SFO

YULSFO

Montreal Pierre Elliott Trudeau Intl

Mon 8/6

6:35 p.m.-1:15 a.m.

1 stop9h 40m

San Francisco

Sun 21/6

11:59 p.m.-1:09 p.m.

1 stop10h 10m

C$ 577

MontrealSan Francisco

YUL - SFO

YULSFO

Montreal Pierre Elliott Trudeau Intl

Tue 22/9

6:45 a.m.-12:20 p.m.

1 stop8h 35m

San Francisco

Fri 25/9

1:20 p.m.-12:37 a.m.

1 stop8h 17m

C$ 601

MontrealSan Francisco

YUL - SFO

YULSFO

Montreal Pierre Elliott Trudeau Intl

Thu 25/6

3:25 p.m.-9:28 p.m.

1 stop9h 03m

San Francisco

Fri 3/7

11:59 p.m.-1:09 p.m.

1 stop10h 10m

C$ 623

MontrealSan Francisco

YUL - SFO

YULSFO

Montreal Pierre Elliott Trudeau Intl

Tue 22/9

6:35 p.m.-9:50 p.m.

Nonstop6h 15m

San Francisco

Sun 27/9

10:35 p.m.-10:40 a.m.

1 stop9h 05m

C$ 638
Quickest round-trip

MontrealSan Francisco

YUL - SFO

YULSFO

Montreal Pierre Elliott Trudeau Intl

Thu 17/9

6:35 p.m.-9:50 p.m.

Nonstop6h 15m

San Francisco

Wed 30/9

11:46 p.m.-8:16 a.m.

Nonstop5h 30m

C$ 638

MontrealSan Francisco

YUL - SFO

YULSFO

Montreal Pierre Elliott Trudeau Intl

Sat 19/9

6:35 p.m.-9:50 p.m.

Nonstop6h 15m

San Francisco

Sun 27/9

11:30 p.m.-10:40 a.m.

1 stop8h 10m

C$ 638

MontrealSan Francisco

YUL - SFO

YULSFO

Montreal Pierre Elliott Trudeau Intl

Wed 23/9

6:35 p.m.-9:50 p.m.

Nonstop6h 15m

San Francisco

Sat 26/9

10:45 p.m.-4:10 p.m.

1 stop14h 25m

C$ 638

Flights are sorted by cheapest round-trip flights first.

Deals found on 13/5

Showing 1-10 of 22 resultsSorted by cheapest first
1
2
3

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

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 15 May 2026.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Montreal to Sonoma as you normally would.

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 15 May 2026.

The most flights from YMQ to SN9 are scheduled on a Monday (7 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (7 on average).

How much does it cost to fly round-trip from Montreal to Sonoma?

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 15 May 2026.
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.
Porter Airlines
8.0
Very good
439 reviews
Check prices

Crew

8.6

Entertainment

7.0

Overall

8.0

Comfort

8.0

Boarding

8.2

Food

7.6

Reviews

1 / 20
10.0
Excellent

John,Mar 2026

YYZ - PVR

I'm 6ft 4in. The seats don't have enough room. But was a good flight.
Porter Airlines
8.0
Very good
439 reviews
Porter Airlines
8.0
Very good
439 reviews
Check prices

Crew

8.6

Entertainment

7.0

Overall

8.0

Comfort

8.0

Boarding

8.2

Food

7.6

Reviews

1 / 20
10.0
Excellent

John,Mar 2026

YYZ - PVR

I'm 6ft 4in. The seats don't have enough room. But was a good flight.
United Airlines
7.4
Good
9,727 reviews
Porter Airlines
8.0
Very good
439 reviews
Check prices

Crew

8.6

Entertainment

7.0

Overall

8.0

Comfort

8.0

Boarding

8.2

Food

7.6

Reviews

1 / 20
10.0
Excellent

John,Mar 2026

YYZ - PVR

I'm 6ft 4in. The seats don't have enough room. But was a good flight.
WestJet
7.2
Good
3,336 reviews
Porter Airlines
8.0
Very good
439 reviews
Check prices

Crew

8.6

Entertainment

7.0

Overall

8.0

Comfort

8.0

Boarding

8.2

Food

7.6

Reviews

1 / 20
10.0
Excellent

John,Mar 2026

YYZ - PVR

I'm 6ft 4in. The seats don't have enough room. But was a good flight.
Air Canada
7.1
Good
11,046 reviews
Porter Airlines
8.0
Very good
439 reviews
Check prices

Crew

8.6

Entertainment

7.0

Overall

8.0

Comfort

8.0

Boarding

8.2

Food

7.6

Reviews

1 / 20
10.0
Excellent

John,Mar 2026

YYZ - PVR

I'm 6ft 4in. The seats don't have enough room. But was a good flight.

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 and United Airlines fly from Montreal to Sonoma in about 8h 35m. The time it takes to get you to your destination can typically vary by up to 9h 25m. 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$ 234. 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 Canada (82%), United Airlines (64%) or Air New Zealand (64%) 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$ 286. While the most popular route (Montreal Pierre Elliott Trudeau Intl - San Francisco) can be booked for C$ 480 on average, our data indicates C$ 868 when flying from Montreal to Sonoma.

  • Can I find deals for flights from Montreal to Sonoma that include hotel bookings?

    Yes. In addition to deals on Montreal to Sonoma flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Montreal to Sonoma?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights 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.

See more FAQs

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Alternative routes for Montreal to Sonoma

See prices for flight routes from nearby airports that may be better suited for you.
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Top 5 airlines flying from Montreal to Sonoma

Discover the top 5 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 15 May 2026.
AirlineCheapestAverageFlexibilityOn-time
WestJetCheapestC$ 283AverageC$ 461FlexibilityNo cancel feeOn-time60%
Search WestJet flights
Porter AirlinesCheapestC$ 369AverageC$ 541FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
United AirlinesCheapestC$ 378AverageC$ 755FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Air CanadaCheapestC$ 451AverageC$ 655FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
DeltaCheapestC$ 583AverageC$ 716FlexibilityNo cancel feeOn-timeN/A
Search Delta flights

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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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