C$ 230 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 3/9. 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.
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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

Thu, 4 Sep - Thu, 4 Sep
United Airlines Logo
11:23 a.m. - 7:05 p.m.YUL-SFO
10h 42m2 stops
United Airlines Logo
11:45 p.m. - 8:16 a.m.SFO-YUL
5h 31mdirect
C$ 336United Airlines
Find Deal
Thu, 4 Sep - Thu, 4 Sep
United Airlines Logo
6:15 a.m. - 3:12 p.m.YUL-SFO
11h 57m2 stops
United Airlines Logo
9:30 p.m. - 10:40 a.m.SFO-YUL
10h 10m2 stops
C$ 344United Airlines
Find Deal
Thu, 30 Oct - Sun, 2 Nov
Porter Airlines Logo
6:45 a.m. - 12:40 p.m.YUL-SFO
8h 55m1 stop
Porter Airlines Logo
1:40 p.m. - 12:35 a.m.SFO-YUL
7h 55m1 stop
C$ 381Porter Airlines
Find Deal
Thu, 4 Sep - Wed, 10 Sep
Air Canada Logo
4:45 p.m. - 7:51 p.m.YUL-SFO
6h 06mdirect
Air Canada Logo
11:40 a.m. - 8:05 p.m.SFO-YUL
5h 25mdirect
C$ 387Air Canada
Find Deal
Thu, 4 Sep - Wed, 10 Sep
Air Canada Logo
8:25 a.m. - 3:28 p.m.YUL-SFO
10h 03m1 stop
Air Canada Logo
11:35 a.m. - 12:36 a.m.SFO-YUL
10h 01m1 stop
C$ 389Air Canada
Find Deal
Sat, 30 Aug - Tue, 9 Sep
 Logo
6:45 a.m. - 12:23 p.m.YUL-SFO
8h 38m1 stop
 Logo
10:15 a.m. - 7:17 p.m.SFO-YUL
30h 02m1 stop
C$ 395
Find Deal
Fri, 29 Aug - Tue, 9 Sep
 Logo
6:45 a.m. - 12:23 p.m.YUL-SFO
8h 38m1 stop
 Logo
10:15 a.m. - 4:12 p.m.SFO-YUL
26h 57m1 stop
C$ 399
Find Deal
Mon, 8 Sep - Tue, 16 Sep
WestJet Logo
6:45 a.m. - 5:14 p.m.YUL-SFO
13h 29m2 stops
WestJet Logo
12:50 p.m. - 12:41 a.m.SFO-YUL
8h 51m1 stop
C$ 402WestJet
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Wed, 10 Sep - Wed, 17 Sep
Porter Airlines Logo
6:45 a.m. - 12:23 p.m.YUL-SFO
8h 38m1 stop
Porter Airlines Logo
1:25 p.m. - 12:37 a.m.SFO-YUL
8h 12m1 stop
C$ 415Porter Airlines
Find Deal
Mon, 8 Sep - Mon, 15 Sep
WestJet Logo
6:45 a.m. - 5:14 p.m.YUL-SFO
13h 29m2 stops
WestJet Logo
12:50 p.m. - 12:41 a.m.SFO-YUL
8h 51m1 stop
C$ 429WestJet
Find Deal
Useful Info

Good to know

Low seasonFebruary
Cheapest flightC$ 230
Best time to beat the crowds (12% less expensive on average)
Most popular time to fly and prices are also 7% lower on average.
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 06m.

  • How many flights are there between Montreal and Sonoma?

    10 direct flights run between Montreal and Sonoma on a daily basis. On average, there are about 70 departures each week.

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

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

  • 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$ 230. United Airlines offered a round-trip connection from C$ 336 and Porter Airlines from C$ 381.

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 89 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 5 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 318 reviews
8.7Crew
7.0Entertainment
8.2Boarding
7.6Food
8.0Comfort
Airline reviews

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

10.0 ExcellentAnonymous, Jul 2025YYZ - RSW
Read more Porter Airlines reviews

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

Our flight was cancelled at the last minute for maintenance reasons and we were rebooked on a late flight when we purposefully booked our flight to be home early due to work.

Seemed like an old plane. Very noisy. The seat cushions were so old that the metal bracing of the seats were poking through. There was plenty of leg room though.

Flight was delayed over 2 hours, then landed at a different airport!

The whole experience from check in to deboarding was fantastic.

Just an evening before they canceled my ticket and offered me ticket costing 3 x times more than. I will not fall prey to these scams,Will never book through kayak now. Such a bad experience.

was okay except.. 1)the porter check in webpage doesn't let you print your boarding pass from home 2)that there was a 90 min cut off for checking in on the kiosk in general, and to print a boarding pass, even tho i checked in online already....

Great! Personable crew. I love that they pour complimentary beer and wine.

I love the 2 seats per row. More room. The crew were excellent.

Check in slow even though completed online check in, there was no bag drop available so had to query for 90mins as only 2 staff on desks.

Flying to a far away destination is a miracle in itself, so please take these with a grain of salt. The seats are a bit tired, and need a freshen up. The entertainment could be a bit newer, especially with all services available now. The food really is where we need help. But again, flying is a privilege, so all is good.

Not so much porter it's your site! Not good

They are a sister company with Air Transat and the two companies do not work well together. If you have any issues the two companies will blame each other and you will miss your flights. The help line does not help

Never book through a third party. Book through Air transats website. Terrible process to get help and many issues happen with them and sister companies because half the flights you book with them aren’t even through air transat.

The plane was pretty full, and we dis not have any includes meal for our 4h30 flight? And on-board entertainment wasn't available, there was no TV or plugging to charger your device on the plane. They told us to download an app if we wanted to watch movies but it never connected, that was a disappointment, the r we st was very good though and the crew were really nice!

Seats were very tight especially for first leg of trip.

Not necessarily a Transat issue but it took 2 hours to go through immigration. Tried to reach out to Transat for resolution but was unable to reach an agent.

The flight was excellent, once it started, however we were delayed two hours when the first plane’s engines wouldn’t start. They found another identical plane and transferred us and our luggage in under two hours and made up almost an hour in the air.

Really low cost trip for the huge amount I paid…o paid 550 dollars just for the trip, one way trip, plus 95 for 1 luggage’s and the second 135 dollars…no blanket, not headphones for entertainment, food was served after 3 hours and 2 hours after, breakfast was served Bad, low cost company for high prices

Ok. Get a different kosher caterer. The food was odd.

Our experience on United Airlines was extremely poor. The plane was extremely cold throughout our entire flight- which multiple people complained about- and we had to wait 2 hours to get a blanket which was too thin and barely helped warm us up. As well as this, none of the entertainment features were working so we had to sit through a roughly 10 hour flight with nothing to keep our attention, including the actual flight path screen. It was an extremely disappointing experience and I would hope that this gets fixed if we ever choose United Airlines again.

I really enjoyed flying with United airlines amazing experience , good customer service and great food

1.It will be better if sandwich is warm. 2.The food is too salty. 3.Breakfast needs some vegetables or fruits.

Boarded plane and then delayed 1.5 hours while on the plane

It was all good flight was on time, service was good I enjoyed a few movies and everything was smooth

Horrific. They missed my connecting flight to San Diego. I didn’t get there until Monday at 9am when I had a mandatory court settlement conference scheduled at 6am since we had parties on the east coast. This caused many issues. All because United apparently forgot to hold the doors open until my flight landed that only had a 10 minute delay. This was the last flight to Southern California. So I couldn’t even rent a car to finish the trip. United cannot be trusted when traveling on specific days and times since weather didn’t have anything to do with the delays.

My flight was delayed a very short period of time but they did not hold my connecting flight to San Diego, also through United. So they closed the doors before we got off our plane. They would only have to help the door open for another five to ten minutes. So I missed a court deadline for a manditory mediation settlement conference for my client. I had to get an associate to be there in person and be on the phone with him relaying what he needs to do the entire time. The court was very upset with me and so was my client. United cannot be trusted.

We were given vouchers we couldn’t use with a 5.5 hour delay

Really good 😊 the woman at the gate entrance was a little rude checking in our carry-on but i dont think she worked for the airline, she worked for the airport at sacramento, other than that amazing.

Staff were courteous and helpful. The only negative was the flight delays (which are usually unavoidable) and the high baggage price.

Absolutely terrible, from the customer service to boarding the plane. On the phone, there was some mishaps with getting in my correct date and they did not help me retrieve a refund or any assistance. I’m gonna be reporting to all my followers and family around the region of Los Angeles to New York.

Could not fly out of Canada. Called airlines on Monday, July 14th. Tried to cancel the flight 7 days away, but they said I could not cancel and there would be no refund.

A little disorganized but overall good. The Delta flights were great though

Price was good. Entertainment and food could have been better

Staff was nice, helpful, and did all they could. I understand economy seats are bottom of the barrel, but we're crammed in there with others in our row.

Our flight info was lost as the original booking was with westjet... almost missed our outbound flight trying to get it corrected. Inbound we had to reschedule completely as they didn't have our information and resold our seats ending up getting home much later than planned. The confirmation numbers we received from justfly for westjet didn't help anything with delta as they said we needed a delta confirmation which we never received. I talked with justfly and they said it's the airlines problem and with westjet and they said it is the 3rd party bookers issue.... so, not fun

They kept making changes to the itinerary. I actually wasn't able to go and i tried to get flight credit in exchange for the ticket, but the customer service chat was taking way too much time.

WestJet canceled my booking, replaced it with a booking that didn't work (departing from cruise ship), and didn't offer any flights that did work. Their only option was for me to cancel and go to another airline for more money. Which I did.

Nothing to like because my inbound flight was cancelled without notification by West Jet or third party, JustFly. I couldn’t take the inbound flight due to cancellation; therefore could not take the outbound flight back.

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

Seating wasn’t too cramped; I don’t understand how luggage bins get full if there are enough for each person. Shouldn’t there be room for the designated carry-on and personal item for each passenger at their seat? THEN, IF for some reason extra room is available for someone who prefers it, then shifts can occur. I’m simply saying it seems that I should have primary access to the storage bin at my seat and underneath in front of me. It was suggested that I go to the back of the plane to store my carry-on when I paid to have access to the first seat after 1st class. The additional stress and inconvenience could be avoided and I think all passengers and flight crew are interested in guidelines that are fair, clear, and reduce tension.

The flight was delayed for 2 hrs. We were changed to a smaller plane, which was shaking a lot.

Flight got canceled last minute and rescheduled 3 days later, as if we do not have jobs and children to return to. 5+ hours on hold with customer support with no answer. We booked a different airline and spent 3x as much to escape Montreal bc of Air Canada. Still haven’t heard from them. Boooo

Took off on-time and staff was very nice. Got stuck on tarmac at ATL due to storms, but staff was still wonderful even though they were working and not getting paid.

The plane was filthy!!!! There were empty food wrappers in the pockets and worst of all a wad of hair where someone had obviously brushed their hair, cleaned out the brush and left the wad of hair in the pocket. It was the most disgusting thing I’ve ever seen!! The seats are so crammed together with NO leg room. The AC vent controllers do not adjust. I will likely not book another AC flight from Florida to Montreal.

Registered my luggage at 5pm. Arrived at JFK at 1:00 am. Worst trip ever. Never again

Air Canada never runs on time. You’re lucky if your flight is not cancelled or diverted. Worst airline in the world for gas lighting its customers.

Received email saying that there won’t be a seat back entertainment screen and inflight WiFi would be available. But no WiFi both ways. Say it in the email.

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

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