C$ 297 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 24/7. 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$ 506
Typical prices: C$ 774-C$ 510
Porter Airlines, WestJet
Thu 20/8Wed 26/8
YUL - SFO • 1 stop
Cheapest direct flights
C$ 610
Typical prices: C$ 744-C$ 533
Air Canada
Wed 4/11Thu 12/11
YUL - SFO • Direct
Arrival airport
You can’t fly directly to Sonoma. It is served by San Francisco (SFO), located 74.8 km from Sonoma.
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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

Thu, 20 Aug - Wed, 26 Aug
Multiple Airlines Logo
6:45 a.m. - 12:20 p.m.
YUL
-
SFO
8h 35m
1 stop
Multiple Airlines Logo
6:05 p.m. - 7:05 a.m.
SFO
-
YUL
10h 00m
1 stop
C$ 506Multiple Airlines
Wed, 19 Aug - Mon, 24 Aug
WestJet Logo
8:00 p.m. - 12:00 p.m.
YUL
-
SFO
19h 00m
1 stop
WestJet Logo
6:05 p.m. - 7:05 a.m.
SFO
-
YUL
10h 00m
1 stop
C$ 507WestJet
Fri, 21 Aug - Thu, 27 Aug
WestJet Logo
8:00 p.m. - 12:00 p.m.
YUL
-
SFO
19h 00m
1 stop
WestJet Logo
6:05 p.m. - 7:05 a.m.
SFO
-
YUL
10h 00m
1 stop
C$ 510WestJet
Thu, 2 Jul - Wed, 8 Jul
WestJet Logo
6:45 a.m. - 9:55 p.m.
YUL
-
SFO
18h 10m
2 stops
WestJet Logo
6:05 p.m. - 7:05 a.m.
SFO
-
YUL
10h 00m
1 stop
C$ 511WestJet
Mon, 22 Jun - Tue, 30 Jun
WestJet Logo
6:45 a.m. - 9:55 p.m.
YUL
-
SFO
18h 10m
2 stops
WestJet Logo
6:05 p.m. - 7:05 a.m.
SFO
-
YUL
10h 00m
1 stop
C$ 515WestJet
Thu, 20 Aug - Sun, 6 Sep
WestJet Logo
6:45 a.m. - 4:40 p.m.
YUL
-
SFO
12h 55m
2 stops
WestJet Logo
6:05 p.m. - 12:25 a.m.
SFO
-
YUL
27h 20m
2 stops
C$ 516WestJet
Wed, 16 Sep - Mon, 21 Sep
Porter Airlines Logo
6:45 a.m. - 12:20 p.m.
YUL
-
SFO
8h 35m
1 stop
Porter Airlines Logo
1:20 p.m. - 12:37 a.m.
SFO
-
YUL
8h 17m
1 stop
C$ 518Porter Airlines
Wed, 1 Jul - Sun, 5 Jul
WestJet Logo
6:45 a.m. - 9:55 p.m.
YUL
-
SFO
18h 10m
2 stops
WestJet Logo
6:05 p.m. - 4:45 p.m.
SFO
-
YUL
19h 40m
2 stops
C$ 519WestJet
Wed, 1 Jul - Sun, 5 Jul
WestJet Logo
8:00 p.m. - 4:40 p.m.
YUL
-
SFO
23h 40m
1 stop
WestJet Logo
6:00 a.m. - 11:45 p.m.
SFO
-
YUL
14h 45m
1 stop
C$ 521WestJet
Sun, 7 Jun - Wed, 22 Jul
WestJet Logo
7:15 a.m. - 12:00 p.m.
YUL
-
SFO
31h 45m
1 stop
WestJet Logo
6:05 p.m. - 7:05 a.m.
SFO
-
YUL
10h 00m
1 stop
C$ 522WestJet
Useful Info

Good to know

Low seasonJanuary
Cheapest flightC$ 297
Best time to beat the crowds (10% less expensive on average)
Most popular time to fly (2% more expensive 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 11m.

  • How many flights are there between Montreal and Sonoma?

    7 direct flights run between Montreal and Sonoma on a daily basis. On average, there are about 49 departures each week.

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

    Consider leaving on a Tuesday 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 Tuesdays.

  • 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$ 234. WestJet offered a round-trip connection from C$ 282 and Porter Airlines from C$ 368.

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 18 days before departure, on average.
  • Book at least 2 weeks 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 October.

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 437 reviews
8.6Crew
7.6Food
8.2Boarding
8.0Comfort
6.9Entertainment
Airline reviews

The staff was amazing. Best service I’ve had on an aircraft in a long time. Was not particularly happy with the food. Flight was at 10:50 and left home too early for breakfast and wasn’t able to purchase food at airport and felt for sure I could get some breakfast to buy on airplane. Nope as food was served around 11:30 and only one choice left (I was at 22C) so ordered the chicken dish thinking I’m getting a hot meal but cold chicken with rice and carrots etc. I was looking forward to a croissant sandwich and a hot cup of tea. The FA was kind to explain they were serving dinner at that time. She was lovely Other than the disappointment with the food the staff was amazing. On my return flight I will make sure to eat and take some food with me so I’m not hungry or disappointed. This was my second time ever flying Porter and will consider checking them when I next come to visit my daughter. Have to say it again best crew I’ve ever experienced on a flight and I travel quite a bit. Thanks.

10.0 ExcellentAngela, May 2026
YYZ - YVR
Read more Porter Airlines reviews

The staff was amazing. Best service I’ve had on an aircraft in a long time. Was not particularly happy with the food. Flight was at 10:50 and left home too early for breakfast and wasn’t able to purchase food at airport and felt for sure I could get some breakfast to buy on airplane. Nope as food was served around 11:30 and only one choice left (I was at 22C) so ordered the chicken dish thinking I’m getting a hot meal but cold chicken with rice and carrots etc. I was looking forward to a croissant sandwich and a hot cup of tea. The FA was kind to explain they were serving dinner at that time. She was lovely Other than the disappointment with the food the staff was amazing. On my return flight I will make sure to eat and take some food with me so I’m not hungry or disappointed. This was my second time ever flying Porter and will consider checking them when I next come to visit my daughter. Have to say it again best crew I’ve ever experienced on a flight and I travel quite a bit. Thanks.

I didn’t receive any help when they messed up and wasn’t honest and the supervisor did absolutely nothing to help me so I had to buy another ticket at $537

Even tho the flight was a bit delayed the team was apologetic. Everyone was friendly and efficient.

The Flight took off 2hrs late because there was no pilot showing up when the flight was ready to board.. Though the cabin crew was present and had prepared the plane, the FO turned around after 15 min and went away. A crew to fly the plane finally arrived over an hour later and we were able to board 1h30 min later than planned time... until everything was loaded, we left 2h late from the gate. This was a small plane, so don't expect any Entertainment... Wi-Fi access on board would work, but took an awful amount of time to figure out and get it work (I'm an IT person). Flying as VIPorter customer, I was expecting at least some warm meal, but everything served was just cold.. except the coffee maybe. Even in so-called VIPorter seats, space is cramped and trays are so tiny, you can barely setup your food. Flight caught up during the coast-to-coast crossing and was able to recoup about 45 min from the delay.. still arrived very late in Vancouver and had to wait a long time to get our registered bags. Let's see how the return flight will be in a few days..

It was okay. Had a thing with the front desk, she had me repack my suitcases to have them be under the weight restrictions, but then the other one was overweight, she argued with me about it when there were tons of people in line. Wasn’t great.

Due to a known technical error that Porter has not fixed in over a year, I was unable to check in the children on my reservation online and had to do it at the airport. Upon check in, there were no seats together, which was an issue as we had young children. The gate agent did manage to seat us together by moving other passengers, which was appreciated, but the other passengers were never informed, leading to confusion and delay upon boarding. The flight was over an hour late; no explanation or apology was ever issued. The bags on Porter take a long time to arrive--over half an hour at Hamilton on my inbound flight, and not much better on my return to Edmonton.

On my e-boarding pass it shows free wifi, yet the plane I was on didn’t have wifi. Please remove false advertising from your website and boarding passes

3.5 hr delay for a 1 hr work flight. No information as to why the delay until 20 mins before boarding.

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.

Seats were not super comfortable and food was not good at all. If I had a chance I would definitely fly a different airline. Of course they are better than any budget airline, but not by much.

Flew steerage class. Short on leg room unless you pay more. No window unless you pay more. Etc. United is trying to squeeze every cent from you. It doesn’t make for any loyalty.

Outstanding service, efficient & friendly crew, flight was safe, comfortable & on time

Outstanding service, great food, friendly & efficient crew, safe & comfortable flight

Staff were not attentive, wifi did not work, cut my head in the bathroom due to the position of the soap on the sink, had blood running down my face, told staff, they had no expression no sympathy, didn't even say "sorry", they said "oh we will have a look at that" about 10 mins later the purser brought me a bandaid, still no sorry.... Shocking

The crew was great. Very friendly and responsive. The plane was old, small and tight. We ran out of overhead space and I had to check. Middle seat was particularly tight.

The flight was delayed from take off because only one runway was operational in San Francisco.

Several missed and almost missed connections. It felt like everything was being patched together last minute without enough resources and it ended up being an extremely stressful experience that basically ruined our weekend on the west coast. What a waste.

Dinner was good, but the breakfast served in the morning was horrible.

Packed in plane small uncomfortable seats elbow to elbow nobody wants to be in that situation for the money they paid

Could not make the flight. No one would help us at all

The agents at the Kelowna YLW airport were really grumpy. Same with oversized baggage person. Staff on the plane were great.

Flight was early. That’s the only positive I can share. I paid for wifi on the flight and it didn’t allow me to use any streaming services so it was a waste of $20. West Jet also lost my ski equipment on my way to a ski vacation. They told me it would be delivered to the hotel as soon as it arrived at the airport. It was never delivered. I had to pick it up at the airport on my way home. I am completely disgusted with my experience on west jet

The window seat on the emergency row was too small. I had a different seat booked and they moved me. My seat remained open. It was very uncomfortable.

Experience was good, the wifi hook up is somewhat tough

I didn't think about not having the right app for wifi because my connecting flight was with Westjet and when I took off from Seattle I was thinking I would use my wifi, but realized I couldn't on my Westjet app and I did not have Delta's app downloaded.

Great flight, great landing, nice staff. Our seats were a little cramped.

I will not be flying with westjet again. I was uncomfortable in my seat. The position made my back hurt so bad. My wife was able to fit the seatbelt around her with out an extension but was unable to put the tray table down or fit in the seat for that matter. Our bag was smashed and I spent two hours trying to fill out the application for a damaged bag before I gave up. The 80 photos I took would not work and nothing telling me the format to upload them as.. I made the mistake of unpacking the bag before taking photos so no claim for me. Next trip to Canada I will have to use air Canada.

Overall good experience. The wait for baggage at our destination was quite long, but other than that everything was good as expected

Loading was delayed multiple times, due to what seemed like boarding pass check system failures, or poor process. Additional delays due to plane congestion on the airport tarmac. All was made up by comfortable seating, good food and good in-flight entertainment.

Another good flight experience with Air Canada. The business section did not feature the full length sleeping arrangement, but this was a shorter trip. The food was excellent. But the flight crew was truly top tier: friendly, cheerful, helpful at all the right times. Air Canada truly outshines all U.S. carriers.

After 3 hours of delays, they ended up cancelling my flight. And although I could purchase one-way tickets to get to my destination, they would not offer me these flights as compensation for the cancelled flight, and I didn't end up making it home until 13 hours after I was originally supposed to arrive. It made for an extremely strenuous end to an otherwise good trip.

Be careful about the bad policy and when purchasing seats

Very disappointed with premier lounge. Food selection very poor, both coffee machines out of order. For the price you charge for an upgrade, the seats don’t fully recline, movie selection is old. Not very good value. Asian airlines are light years ahead at a more affordable price.

We left over 2 hours late and they didn't even give us a complimentary snack, when getting to the desk I asked if I could be put in a row with only 1 other person or an empt y one I was told the flight was full when the last two rows were empty. All around over it

Air Canada’s problems are not staff related by and large, no. The problem is tiny jets between the U.S. and Canada - yes, believe it or not they are still “international” (just ask our own Mango Maniac in power in the U.S.). The little aisle is compounded by a design flaw of a “dog leg” starting at seat 12. Woe be unto you if you sit here as passengers and attendants do not have sufficient room to not hit you in the face with backpacks. One thing I will say very positively about Air Canada is you still provide pillows and blankets on transcontinental flights to all, not just the elites. Your tiny improperly designed jets are also a problem flying city to city within Canada also. One can only say you remind us of a “Jet Blue” or “Spirit” experience. Also your luggage space is downright Byzantine! We will endeavor to avoid you and use other U.S. carriers, albeit charging more.

Terrible canceled flight and lost my luggage. Flew me to Halifax. Tgat flight was delayed, had to spend night in airport chair.

My seat was not comfortable. Flight was smooth. Regretfully we had two delays before takeoff

They are very proactive and made our boarding easy and always notified us about any changes well in advance.

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

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

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