C$ 331 Find Cheap Flights from Montreal to Sonoma

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Montreal to Sonoma departing on 16/1. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
C$ 540
Overall average: C$ 535
Multiple Airlines
Fri 9/1Fri 16/1
YUL - SFO • 2 stops
Cheapest direct flights
C$ 556
Typical prices: C$ 734-C$ 1,266
Air Canada
Tue 16/12Mon 29/12
YUL - SFO • Direct
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Flight Deals
Useful Info
Flight Deals

Cheap Flights from Montreal to Sonoma (YMQ-SFO)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Montreal to Sonoma that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Montreal to Sonoma

Fri, 9 Jan - Fri, 16 Jan
Multiple Airlines Logo
6:45 a.m. - 9:30 a.m.YUL-SFO
29h 45m2 stops
Multiple Airlines Logo
1:00 p.m. - 7:05 a.m.SFO-YUL
15h 05m1 stop
C$ 540Multiple Airlines
Find Deal
Sun, 1 Feb - Tue, 10 Feb
Air Canada Logo
5:50 p.m. - 9:22 p.m.YUL-SFO
6h 32mdirect
Air Canada Logo
7:30 a.m. - 9:00 p.m.SFO-YUL
10h 30m1 stop
C$ 544Air Canada
Find Deal
Wed, 15 Apr - Sun, 19 Apr
Multiple Airlines Logo
6:45 a.m. - 12:40 p.m.YUL-SFO
8h 55m1 stop
Multiple Airlines Logo
1:00 p.m. - 1:32 p.m.SFO-YUL
21h 32m1 stop
C$ 546Multiple Airlines
Find Deal
Mon, 12 Jan - Tue, 3 Feb
American Airlines Logo
3:50 p.m. - 10:34 p.m.YUL-SFO
9h 44m1 stop
American Airlines Logo
12:17 a.m. - 3:20 p.m.SFO-YUL
12h 03m2 stops
C$ 549American Airlines
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Thu, 18 Dec - Sun, 18 Jan
American Airlines Logo
4:00 p.m. - 12:32 a.m.YUL-SFO
11h 32m1 stop
American Airlines Logo
6:00 a.m. - 10:44 p.m.SFO-YUL
13h 44m2 stops
C$ 550American Airlines
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Wed, 18 Feb - Tue, 24 Feb
American Airlines Logo
12:58 p.m. - 7:49 p.m.YUL-SFO
9h 51m1 stop
American Airlines Logo
12:50 a.m. - 1:45 p.m.SFO-YUL
9h 55m2 stops
C$ 551American Airlines
Find Deal
Tue, 14 Apr - Tue, 21 Apr
Multiple Airlines Logo
6:45 a.m. - 12:40 p.m.YUL-SFO
8h 55m1 stop
Multiple Airlines Logo
1:00 p.m. - 12:38 a.m.SFO-YUL
32h 38m2 stops
C$ 554Multiple Airlines
Find Deal
Wed, 4 Mar - Tue, 10 Mar
Air Canada Logo
9:00 a.m. - 3:35 p.m.YUL-SFO
9h 35m1 stop
Air Canada Logo
8:25 a.m. - 4:49 p.m.SFO-YUL
5h 24mdirect
C$ 556Air Canada
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Wed, 10 Dec - Thu, 11 Dec
Multiple Airlines Logo
5:50 p.m. - 9:22 p.m.YUL-SFO
6h 32mdirect
Multiple Airlines Logo
1:00 p.m. - 7:05 a.m.SFO-YUL
15h 05m1 stop
C$ 557Multiple Airlines
Find Deal
Wed, 10 Dec - Thu, 11 Dec
Multiple Airlines Logo
9:00 a.m. - 3:35 p.m.YUL-SFO
9h 35m1 stop
Multiple Airlines Logo
1:00 p.m. - 12:43 a.m.SFO-YUL
32h 43m2 stops
C$ 560Multiple Airlines
Find Deal
Useful Info

Good to know

Low seasonSeptember
Cheapest flightC$ 331
Best time to beat the crowds but there is an average 1% increase in price.
Flight from Montreal to San Francisco

When to book flights from Montreal to Sonoma

Are your dates flexible? Find out the best times to travel from Montreal to Sonoma based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

FAQs for booking flights from Montreal to Sonoma

  • Which airports will I be using when flying from Montreal to Sonoma?

    When flying out of Montreal you’ll be using Montreal Pierre Elliott Trudeau Intl. Sonoma does not have its own airport so you’ll be flying into nearby San Francisco airport, which is 74.8 km away.

  • How long does a flight from Montreal to Sonoma take?

    Direct flights cover the 6,577 km separating Montreal and Sonoma in about 6h 32m.

  • How many flights are there between Montreal and Sonoma?

    4 direct flights run between Montreal and Sonoma on a daily basis. On average, there are about 28 departures each week.

  • What’s the cheapest day of the week to fly between Montreal and Sonoma?

    Consider leaving on a Wednesday and avoid Saturdays if you are looking for the best rates. For your return to Montreal, you’ll find the best rates on Wednesdays and the most expensive ones on Mondays.

  • How does KAYAK find such low prices on flights from Montreal to Sonoma?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Montreal to Sonoma.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Montreal to Sonoma?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Sonoma from Montreal is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Montreal to Sonoma?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Sonoma with an airline and back to Montreal with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Montreal to Sonoma?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Sonoma from Montreal up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • Which airlines provide the cheapest flights from Montreal to Sonoma?

    In the last 72 hours, the cheapest one-way ticket between Montreal and Sonoma found on KAYAK was with Porter Airlines for C$ 209. American Airlines offered a round-trip connection from C$ 219 and Delta from C$ 261.

Top tips for finding cheap flights from Montreal to Sonoma

  • There is no airport in Sonoma. Instead, you’ll be flying into San Francisco Airport when flying between Montreal and Sonoma.
  • The cheapest flight from Montreal to Sonoma was found 49 days before departure, on average.
  • Book at least 1 week before departure in order to get a below-average price.
  • High season is considered to be November, December and January. The cheapest month to fly is February.

Top 4 airlines flying from Montreal to Sonoma

 
Need help choosing which airline to fly with from Montreal to Sonoma? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
Porter AirlinesOverall score based on 394 reviews
8.0Comfort
8.6Crew
7.6Food
8.2Boarding
7.0Entertainment
Airline reviews

Organization and the adjusted times but the snacks could be of a bigger portion

8.0 ExcellentAnonymous, Nov 2025YYZ - PHX
Read more Porter Airlines reviews

Organization and the adjusted times but the snacks could be of a bigger portion

Smaller plane. Food and bar service for free is amazing. Drinks were in glass not plastic cups.

Poor landing as we overshot the runway and had to re land the plane. Lost both of my luggage not found as of yet. Had to pay extra money for my luggage in USD, now great my luggage is gone. Will not fly with Porter again.

This flight to St. Johns was really good. Boarding was a breeze. We left spot on time. Seats were actually pretty good. Recliner further than I expected. Three more flights to go we will see if this is the status quo for Porter.👍

I was not happy with AirfareAssist, the agency that kayak advised me would be handling my booking. I was advised by porter airlines that I had been overcharged for the Basic express , a option that I had asked airfare assist to help arrange after I realized that the basic fare I had chosen with porter did not include a carryon. At each checkin porter advised I had been overcharged for this . They advised that money would be refunded to my credit card, however, this is not likely to happen as it is not my name and credit card that appeared on the porter invoice, but that of another individual/agent. When airfare assist was arranging the basic express with porter on my behalf, they asked me to confirm that I agreed to pay $263 USD for this. I did agree, as I was advised this was needed to proceed. When I checked the invoice on the porter website and saw that it was not my name and credit card on the invoice, I was advised that this was how airfareassist processed the payment. The Porter invoice indicated a billed amount of $126USD I will not use Kayak or their designated AirfareAssist again

Our flight was delayed by a bit. I appreciated that we were kept informed on why periodically. Boarding was fine. I overheard one flight attendant sounding very rude to a passenger who was not paying attention to the safety demonstration. The snacks were minimal as it was a short flight. There was no entertainment. Overall the flight was good back to LGA.

There was a 5 hour delay. Missed connection and now an almost 21 hour lay over!

The flight was fine see earlier note for the problem

All good the seats a little tight and no I pad screen

Everything was good except the fact you charge more for a carry on bag vs a check in bag and to top it off in US$ that was not impressive

United needs to step up their game. Delayed flight leaving Seattle, San Francisco. Older aircraft, not very comfortable.

The flight attendants were very rude, beyond comprehension. I took a business class from London to SFO for the first time on United. When I asked for a second piece of bread during dinner, the serving attendant threw a 3rd bread on my plate and said, “here. You can have this one too”! I couldn’t believe the rudeness of the attendant. Most all attendants were very rude, unhelpful, sing the food was absolutely disgusting. Never fly United internationally in business class. My flight back to SFO was a nightmare!!

Plane boarded early a quickly, was mostly full. We left close to on time. And landed early.

7 hours delayed due to operational issues on United’s end. Basically laziness.

Flight from Rome to SFO was excellent compared To our flight to Europe from SFO. The food was much tastier. You can see how UNITED is skimping, though. Instead of getting something mid flight you had to ask for it. It was not automatically served. There was a cookie at the end of the arrival meal, for example that tasted like it just came out of a box. They used to serve a little container of nuts, now … a tiny container of nuts, mixed with pretzels. This was business class that you really have to pay for! But this is minor complaints compared to the overall. My major complaint is the position of the even numbered seats by the windows. You have to turn around to see your window & the positioning as some other controls are harder to get at. This is compared to the odd number seat that are perfectly aligned.

The food quality sucks. One must starve if they do not eat flesh Or wheat based products Some variety would be expected. The trivial amount of snacks and or food is inhumane

Flight was timely, relatively comfortable, with decent entertainment and food served. Only problem encountered was with the free messaging which I highly appreciate, but it did not work from iphone to non-iphones.

The internet service I paid for didn’t work at all and the flight crew was not very friendly.

Subject: Formal Complaint: Discriminatory and Unprofessional Conduct – Request for Immediate Action & Compensation Dear [Airline Customer Relations Team], I am writing to file a formal complaint regarding my recent travel experience with [Airline], which was by far the worst I have ever encountered. What occurred was not only unprofessional, but in several instances discriminatory, unsafe, and unacceptable. On the first leg of my trip, I arrived only four minutes past check-in. Instead of making any attempt to resolve the matter, your representative flatly denied me boarding and made me wait while she attended to passengers who arrived after me. By the time a manager intervened, it was too late to board, costing me time, money, and unnecessary frustration. The second leg of my trip (Chicago–San Francisco) raised even more serious concerns. From the outset, it was apparent that the staff—particularly two attendants—prioritized Caucasian passengers while dismissing African American and minority passengers. • When a Caucasian passenger in the exit row refused to comply with federal safety requirements, I, as a first responder, immediately offered to switch seats and assume the responsibility. My offer was blatantly ignored, and instead, a Caucasian passenger seated further up was chosen. This was discriminatory and deeply insulting, especially as I was actively de-escalating the situation that could have delayed the flight further. • During a lengthy tarmac delay of over 90 minutes, passengers were given conflicting and unreasonable instructions that created unnecessary distress and tension. • Throughout the flight, a visibly intoxicated passenger directly in front of me was disruptive, rude to others, failed to comply with seatbelt and electronic device rules, and yet faced no enforcement from the crew. In stark contrast, I was singled out for repeated compliance checks even though I was following every rule. This unequal treatment was so obvious that multiple passengers around me spoke up in my defense. This pattern of behavior demonstrated a clear lack of professionalism, disregard for passenger safety, and discriminatory treatment. I expect far better from an airline of your stature. As a paying customer subjected to this unacceptable treatment, I am formally requesting: 1. A full investigation into the conduct of the staff on both flights. 2. A written apology acknowledging the discriminatory and unprofessional behavior I endured. 3. Appropriate compensation for the distress, inconvenience, and mishandling of my travel. If this matter is not addressed promptly and thoroughly, I will have no choice but to escalate my complaint further, including filing with the U.S. Department of Transportation and sharing my experience through other channels. I trust [Airline] will take this complaint seriously and provide a timely resolution.

Check in was quick and easy during early hours. Flight was on time, and customer services was a plus.

I was seated near a "stinky" person. That's not the fault of Westjet🙁😶‍🌫️

Do not fly on WestJet if you have a connection. It failed to integrate with my connecting Delta flight and I almost missed it.

There was a man who was very rude at boarding. On the other hand personal bag measuring box is too small compared to USA airlines,

Please make more option. And be more precise on the type of food you giving. Diner and breakfast can be different

A little better seat cushions would be appreciated. Crews were all good.

The process and flight were both smooth and trouble free

Flight delayed 3 hours, missed my connection in Atlanta. Instead of getting to Savannah at 6PM arrived after 10:00PM Middle seat, couldn't get isle or window, couldn't book my seats in advance, had to book at the gate. That's a 1st for me and I used to travel a lot

my carry-on bag was delayed and I did not receive it until the day of my return at the airport. This delay caused me significant inconvenience, as I did not have access to my personal belongings for the duration of my trip. I had expected to rely on my carry-on items, and being without them negatively impacted my travel experience.

Technology issues at the bag-check counter caused a delay, and we were unable to check out our bags, ultimately missing our flight. They offered no assistance other than telling us to book another flight out of Calgary. We arrived with plenty of time; if there hadn't been an issue with the kiosk and the length of the lines due to the technical issues, we could have made it home.

Worst check in and bag drop off experience. Staff were incredibly rude given that it’s the WestJet system that is faulty.

The staff could not have been any friendlier. Lots of usb ports on our aircraft.

It was crazy, boarded over a hour late from scheduled departure. Then when arrived in BNA issued with getting off the plane…over 1/2 hour. Not looking forward to flying Air Canada, ever again.

Great flight. Only complaint is it took over an hour for my luggage to get to the carousel on the return to LAX That was irritating

1 hour late No hot drinks No restroom in the back of the plane

I had wonderful wheelchair assistance through the Montreal airport onto the flight. Air Canada was excellent in this both at the Fredericton airport and the Montreal one where an attendant helped us through customs as well as transport and baggage security.

Flight was cancelled last minute due to Air Canada strike leaving us stranded and having to stressfully find a way home that cost hundreds of dollars in excess cost added to the trip. Having just experienced our mother's funeral service, this was not a good way to end our trip.

Horrible, experience, 5 hours delay, they changed gates 3 times, the last one we had to wait for 1::30 hre for the door to open to get to that gate. 0 apologies from Air Canada, they don’t care at all about their passengers

I had a very disappointing experience with customer service. I was suffering from a severe viral infection that included a rash and persistent cough, leaving me unable to even sit upright. Given the circumstances, I requested travel credits from Canada Air, explaining the potential health risk to others onboard. However, the airline showed no concern for my condition and stated they were not in a position to make decisions based on health considerations. Despite my illness, I received no support or flexibility. Ultimately, I chose to forgo my flight due to their lack of responsiveness. It’s unfortunate that airlines like this operate without prioritizing passenger health and safety.

My return flight experience was one of the worst times I have had traveling anywhere this year. Not because of the flight. It was because there was not enough time allocated to deplane, go through U.S. Customs and U.S. Security to get to the gate for the connecting flight to Boston which I missed, There was well less than an hour between my landing in Montreal from Prince Edward Island to my connecting gate. I even called Air Canada on the morning of my return and noted my concern over the short layover time, not more that 45 minutes. The initial flight was four minutes late. I was seated in the rear of the first aircraft, and it took at least 20 minutes to deplane. The U.S. Customs was a considerable distance from the gate at which we landed. The need for double security seemed unnecessary and redundant. The distance from the security to my gate was again fairly great, and the wrong gate number was listed on my boarding pass. The agent I approached at the flight that was going to Newark, New Jersey was too busy to answer my question as to what gate was for Boston. When I got to the right gate, they had just closed the door to the aircraft even though I arrived a minute late. If I knew the distance to Customs and from Security to the gate, I would have asked for a seat on the next available flight which was 4:30 pm. When I made my call at 6:00AM that morning. When I asked the agent at the Boston gate, he said that the 4:30 flight was already “OVERBOOKED!” I was put on an 8:30 PM flight and didn’t get home until MIDNIGHT. I then had to care for a barnful of hungry animals and didn’t get to bed until 2:00 AM.

From Montreal to Cincinnati the flight was perfect! Flight free and everyone was perfect and a pleasure to travel with. But from Casablanca to Montreal the flight crew were quite cold, unhelpful, also seemed to scold many passengers instead of simply educating or instructing them. There were a couple for sure I could describe but not name… i was really shocked bc my experience w air Canada is typically a good one at the very least. It seemed something was very much so I’m the air w the crew. The two older lady crew members and the male were amazing but the younger lady crew members w the exception of one were very clique-y and snarky, sassy

Everything you need to know for your flight from Montreal to Sonoma

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