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Cheap flights from Toronto to Sonoma from C$ 263

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 3/9. Fares are subject to change and may not be available on all flights or dates of travel.
YTO — SFO
21 Jul — 28 Jul1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Toronto to Sonoma are usually found in November or January, booked 88 days in advance, depart on a Friday or Thursday and return on a Thursday

Cheap flight deals from Toronto to Sonoma

Enter your travel dates to find the best prices.

Cheapest flights from Toronto to Sonoma
Explore the most affordable flight options available from Toronto to Sonoma. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 21 June 2026.

Thu 13/86:10 p.m.
YHM
-
SFO
1 stop20h 50m
WestJet
Wed 19/86:00 a.m.
SFO
-
YHM
1 stop8h 15m
WestJet
Deal found 21/6C$ 474
Thu 24/912:40 p.m.
YYZ
-
SFO
2 stops12h 15m
WestJet
Wed 30/91:00 p.m.
SFO
-
YYZ
1 stop8h 10m
WestJet
Deal found 16/6C$ 478
Thu 13/86:10 p.m.
YHM
-
SFO
1 stop20h 50m
WestJet
Thu 20/86:00 a.m.
SFO
-
YHM
1 stop8h 15m
WestJet
Deal found 19/6C$ 481
Tue 22/99:45 a.m.
YYZ
-
SFO
Nonstop5h 35m
Porter Airlines
Fri 2/101:20 p.m.
SFO
-
YYZ
Nonstop5h 05m
Porter Airlines
Deal found 16/6C$ 481
Thu 16/76:10 p.m.
YHM
-
SFO
1 stop20h 50m
WestJet
Wed 29/76:00 a.m.
SFO
-
YHM
1 stop8h 15m
WestJet
Deal found 16/6C$ 485
Thu 16/711:10 p.m.
YYZ
-
SFO
2 stops15h 50m
WestJet
Mon 20/71:00 p.m.
SFO
-
YYZ
1 stop8h 10m
WestJet
Deal found 16/6C$ 485
Fri 17/76:10 p.m.
YHM
-
SFO
1 stop20h 50m
WestJet
Tue 21/76:00 a.m.
SFO
-
YHM
1 stop8h 15m
WestJet
Deal found 18/6C$ 487
Thu 2/711:10 p.m.
YYZ
-
SFO
2 stops15h 50m
WestJet
Mon 6/71:00 p.m.
SFO
-
YYZ
1 stop14h 55m
WestJet
Deal found 16/6C$ 488
Wed 26/86:10 p.m.
YHM
-
SFO
1 stop20h 50m
WestJet
Mon 31/86:00 a.m.
SFO
-
YHM
1 stop8h 15m
WestJet
Deal found 18/6C$ 490
Sun 19/72:50 p.m.
YYZ
-
SFO
1 stop24h 10m
WestJet
Tue 21/76:05 p.m.
SFO
-
YYZ
1 stop8h 40m
WestJet
Deal found 16/6C$ 490
Sun 19/76:10 p.m.
YHM
-
SFO
1 stop20h 50m
WestJet
Wed 22/76:00 a.m.
SFO
-
YHM
1 stop8h 15m
WestJet
Deal found 19/6C$ 492
Fri 9/106:00 a.m.
YYZ
-
SFO
1 stop9h 00m
WestJet
Sun 11/101:00 p.m.
SFO
-
YYZ
2 stops13h 10m
WestJet
Deal found 16/6C$ 494

Find flight deals from Toronto to Sonoma

Keep the following information in mind while searching for Toronto to Sonoma flight deals. Data was last updated 21 June 2026.

Round-trip from

C$ 478

One-way from

C$ 263

Popular in

July

Cheapest in

November

Average price

C$ 624
WestJet
  • WestJet
  • 24/9-30/9
  • 3 total stops
  • 20h 25m total
  • Toronto to Sonoma
Search Deals
WestJet
  • WestJet
  • 3/9
  • 2 total stops
  • 12h 15m total
  • Toronto to Sonoma
Search Deals
Highest demand for flights based on searches. 9% potential increase in price (C$ 84 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (C$ 16 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Toronto 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 21 June 2026.
Use the filters below to find and compare flights from Toronto to Sonoma that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

HamiltonSan Francisco

YHM - SFO

YHMSFO

Hamilton

Fri 17/7

6:10 p.m.-12:00 p.m.

1 stop20h 50m

San Francisco

Tue 21/7

6:00 a.m.-5:15 p.m.

1 stop8h 15m

C$ 487

TorontoSan Francisco

YKF - SFO

YKFSFO

Toronto Region of Waterloo Intl

Tue 25/8

8:40 p.m.-12:00 p.m.

1 stop18h 20m

San Francisco

Wed 2/9

6:05 p.m.-7:50 p.m.

1 stop22h 45m

C$ 502

TorontoSan Francisco

YKF - SFO

YKFSFO

Toronto Region of Waterloo Intl

Thu 6/8

8:40 p.m.-12:00 p.m.

1 stop18h 20m

San Francisco

Sun 9/8

6:00 a.m.-7:50 p.m.

1 stop10h 50m

C$ 504

HamiltonSan Francisco

YHM - SFO

YHMSFO

Hamilton

Fri 18/9

6:10 p.m.-12:00 p.m.

1 stop20h 50m

San Francisco

Fri 25/9

6:00 a.m.-5:15 p.m.

1 stop8h 15m

C$ 508

HamiltonSan Francisco

YHM - SFO

YHMSFO

Hamilton

Fri 11/9

6:10 p.m.-12:00 p.m.

1 stop20h 50m

San Francisco

Mon 14/9

6:00 a.m.-5:15 p.m.

1 stop8h 15m

C$ 509

HamiltonSan Francisco

YHM - SFO

YHMSFO

Hamilton

Wed 16/9

6:10 p.m.-12:00 p.m.

1 stop20h 50m

San Francisco

Mon 21/9

6:00 a.m.-5:15 p.m.

1 stop8h 15m

C$ 514

TorontoSan Francisco

YKF - SFO

YKFSFO

Toronto Region of Waterloo Intl

Mon 21/9

8:40 p.m.-12:00 p.m.

1 stop18h 20m

San Francisco

Fri 25/9

6:00 a.m.-7:50 p.m.

1 stop10h 50m

C$ 525

HamiltonSan Francisco

YHM - SFO

YHMSFO

Hamilton

Tue 25/8

6:10 p.m.-12:00 p.m.

1 stop20h 50m

San Francisco

Wed 2/9

6:05 p.m.-5:15 p.m.

1 stop20h 10m

C$ 526

TorontoSan Francisco

YKF - SFO

YKFSFO

Toronto Region of Waterloo Intl

Thu 16/7

8:40 p.m.-12:00 p.m.

1 stop18h 20m

San Francisco

Tue 21/7

6:00 a.m.-7:50 p.m.

1 stop10h 50m

C$ 529

TorontoSan Francisco

YKF - SFO

YKFSFO

Toronto Region of Waterloo Intl

Wed 16/9

8:40 p.m.-12:00 p.m.

1 stop18h 20m

San Francisco

Mon 21/9

6:00 a.m.-7:50 p.m.

1 stop10h 50m

C$ 531

Flights are sorted by cheapest round-trip flights first.

Deals found on 16/6

Showing 1-10 of 60 resultsSorted by cheapest first
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Best time to book a flight from Toronto to Sonoma

Have a flexible travel schedule? Discover the best time to fly to Sonoma from Toronto 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 Toronto to Sonoma

What is the cheapest time of day to fly from YTO to SN9?

Find hourly flight availability from Toronto 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 21 June 2026.

When flying from Toronto to Sonoma, the time of day you fly usually plays a role in the price. Save by searching for a flight in the morning, which can drop the price by up to 60% versus a flight at noon.

Weekly flight availability from Toronto to Sonoma

Explore weekly flight availability from Toronto 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 21 June 2026.

The most flights from YTO to SN9 are scheduled on a Saturday (23 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (13 on average).

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

What is the cheapest day to fly from Toronto to Sonoma?

Use this chart to determine the cheapest time to fly round-trip from Toronto to Sonoma. Price data was last updated on 20 June 2026.

Travelers seeking maximum savings on their Toronto to Sonoma flight should consider departing on Wednesday at noon when fares are most often at their lowest. Monday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

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 21 June 2026.
Check out reviews from past customers who have flown with Porter Airlines,Air Transat, andUnited Airlines from Toronto to Sonoma to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Porter Airlines
8.0
Very good
438 reviews
Check prices

Entertainment

6.9

Food

7.6

Comfort

8.0

Boarding

8.2

Crew

8.6

Overall

8.0

Reviews

1 / 20
6.0
Good

Justin,May 2026

YYZ - MCO

Staff very nice. Seats were uncomfortable. Complimentary snacks leave much to be desired.
Porter Airlines
8.0
Very good
438 reviews
Porter Airlines
8.0
Very good
438 reviews
Check prices

Entertainment

6.9

Food

7.6

Comfort

8.0

Boarding

8.2

Crew

8.6

Overall

8.0

Reviews

1 / 20
6.0
Good

Justin,May 2026

YYZ - MCO

Staff very nice. Seats were uncomfortable. Complimentary snacks leave much to be desired.
Air Transat
7.8
Good
556 reviews
Porter Airlines
8.0
Very good
438 reviews
Check prices

Entertainment

6.9

Food

7.6

Comfort

8.0

Boarding

8.2

Crew

8.6

Overall

8.0

Reviews

1 / 20
6.0
Good

Justin,May 2026

YYZ - MCO

Staff very nice. Seats were uncomfortable. Complimentary snacks leave much to be desired.
United Airlines
7.4
Good
9,868 reviews
Porter Airlines
8.0
Very good
438 reviews
Check prices

Entertainment

6.9

Food

7.6

Comfort

8.0

Boarding

8.2

Crew

8.6

Overall

8.0

Reviews

1 / 20
6.0
Good

Justin,May 2026

YYZ - MCO

Staff very nice. Seats were uncomfortable. Complimentary snacks leave much to be desired.
WestJet
7.2
Good
3,375 reviews
Porter Airlines
8.0
Very good
438 reviews
Check prices

Entertainment

6.9

Food

7.6

Comfort

8.0

Boarding

8.2

Crew

8.6

Overall

8.0

Reviews

1 / 20
6.0
Good

Justin,May 2026

YYZ - MCO

Staff very nice. Seats were uncomfortable. Complimentary snacks leave much to be desired.
Air Canada
7.1
Good
11,231 reviews
Porter Airlines
8.0
Very good
438 reviews
Check prices

Entertainment

6.9

Food

7.6

Comfort

8.0

Boarding

8.2

Crew

8.6

Overall

8.0

Reviews

1 / 20
6.0
Good

Justin,May 2026

YYZ - MCO

Staff very nice. Seats were uncomfortable. Complimentary snacks leave much to be desired.

Related info for your journey

Find useful and relevant information for your journey from Toronto 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 Toronto to Sonoma?

    Departing from Toronto to Sonoma will take you 5h 38m. The distance from Toronto to Sonoma is about 3626 km. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • What are the cheapest airlines to fly from Toronto to Sonoma one-way?

    One-way options have recently been found by users for as low as C$ 180 on WestJet. Other airlines that offer cheap prices include Porter Airlines from C$ 217 and Air Transat from C$ 230 one-way.

  • What are the most popular routes from Toronto to Sonoma?

    Most travellers choose Toronto Pearson Intl - San Francisco, Toronto Island - San Francisco or Toronto Region of Waterloo Intl - San Francisco when deciding on the best route from Toronto to Sonoma.

  • What are the most reliable airlines from Toronto to Sonoma?

    The top 3 most reliable airlines when flying from Toronto to Sonoma are American Airlines (78%), Porter Airlines (78%) and Air Transat (78%).

  • What are the cheapest flights from Toronto to Sonoma?

    While on average a flight from Toronto to Sonoma is generally C$ 1,557, our data shows the cheapest flight currently is C$ 256. When looking at the most popular route, (Toronto Pearson Intl - San Francisco), you can expect to pay C$ 422 for that flight.

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

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

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

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

  • Can I find deals for business class flights from Toronto to Sonoma?

    Yes. Cheapflights offers flight deals from Toronto 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 Toronto to Sonoma

See prices for flight routes from nearby airports that may be better suited for you.
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Top 7 airlines flying from Toronto to Sonoma

Discover the top 7 airlines that operate flights from Toronto 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 21 June 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapestC$ 243AverageC$ 555FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
WestJetCheapestC$ 271AverageC$ 396FlexibilityNo cancel feeOn-time60%
Search WestJet flights
Porter AirlinesCheapestC$ 318AverageC$ 515FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
American AirlinesCheapestC$ 332AverageC$ 722FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
Air CanadaCheapestC$ 340AverageC$ 704FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Air TransatCheapestC$ 390AverageC$ 611FlexibilityNo cancel feeOn-time50%
Search Air Transat flights
United AirlinesCheapestC$ 470AverageC$ 681FlexibilityNo cancel feeOn-time69%
Search United Airlines flights

Fly with Cheapflights

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 Toronto to Sonoma?

When you search for this flight from Toronto to Sonoma, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from Toronto to Sonoma?

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Toronto to Sonoma for you. Better yet — we are completely free to use.

Can Cheapflights find flights from Toronto to Sonoma with no change fees?

Yes! Cheapflights helps users easily find flights from Toronto to Sonoma with no change fees.

Can Cheapflights notify me if prices for flights from Toronto to Sonoma become cheaper?

Yes! Start tracking prices for Toronto to Sonoma flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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