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Cheap flights from Toronto to Sonoma from C$ 202

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 7/10. Fares are subject to change and may not be available on all flights or dates of travel.
YTO — SFO
15 Oct — 22 Oct1
1 adult
1 adult, Economy

Cheapflights Tip: The best prices from Toronto to Sonoma are usually found in April or March, booked 68 days in advance, depart on a Friday or Saturday and return on a Thursday

Cheap flight deals from Toronto to Sonoma

Keep the following information in mind while searching for Toronto to Sonoma flight deals. Data was last updated 15 September 2025.

Round-trip from

C$ 337

One-way from

C$ 202

Popular in

December

Cheapest in

April

Average price

C$ 569
WestJet
  • WestJet
  • 6/10-12/10
  • 2 total stops
  • 17h 44m total
  • Toronto to Sonoma
Search Deals
WestJet
  • WestJet
  • 7/10
  • 1 total stop
  • 8h 54m total
  • Toronto to Sonoma
Search Deals
Highest demand for flights based on searches. 6% potential increase in price (C$ 46 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 20 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 2025
Search Deals

Find flight deals from Toronto to Sonoma

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 15 September 2025.

Mon 6/106:00 a.m.YHM - SFO
1 stop8h 54mWestJet
Sat 11/1012:50 p.m.SFO - YHM
1 stop8h 50mWestJet
Deal found 15/9C$ 334
Mon 6/106:00 a.m.YHM - SFO
1 stop8h 54mWestJet
Sun 12/1012:50 p.m.SFO - YHM
1 stop8h 50mWestJet
Deal found 15/9C$ 336
Tue 7/106:00 a.m.YHM - SFO
1 stop8h 54mWestJet
Thu 9/1012:50 p.m.SFO - YHM
1 stop8h 50mWestJet
Deal found 14/9C$ 347
Mon 6/106:00 a.m.YHM - SFO
1 stop8h 54mWestJet
Thu 9/1012:50 p.m.SFO - YHM
1 stop8h 50mWestJet
Deal found 15/9C$ 348
Wed 15/106:00 a.m.YHM - SFO
1 stop8h 54mWestJet
Wed 22/1012:50 p.m.SFO - YHM
1 stop8h 50mWestJet
Deal found 15/9C$ 351
Wed 1/106:00 a.m.YHM - SFO
1 stop8h 54mWestJet
Wed 8/1012:50 p.m.SFO - YHM
1 stop8h 50mWestJet
Deal found 14/9C$ 358
Tue 30/96:00 a.m.YHM - SFO
1 stop8h 54mWestJet
Wed 1/1012:50 p.m.SFO - YHM
1 stop8h 50mWestJet
Deal found 15/9C$ 362
Tue 30/96:00 a.m.YHM - SFO
1 stop8h 54mWestJet
Tue 7/1012:50 p.m.SFO - YHM
1 stop8h 50mWestJet
Deal found 14/9C$ 369
Mon 6/106:00 a.m.YHM - SFO
2 stops30h 30mMultiple Airlines
Sat 11/1012:50 p.m.SFO - YHM
1 stop8h 50mMultiple Airlines
Deal found 15/9C$ 374
Tue 30/99:30 a.m.YYZ - SFO
1 stop14h 51mMultiple Airlines
Sun 12/1010:15 a.m.SFO - YYZ
1 stop11h 28mMultiple Airlines
Deal found 15/9C$ 374
Fri 24/106:00 a.m.YHM - SFO
1 stop8h 54mWestJet
Tue 28/101:00 p.m.SFO - YHM
1 stop25h 17mWestJet
Deal found 14/9C$ 376
Thu 23/1012:00 p.m.YYZ - SFO
2 stops12h 24mMultiple Airlines
Mon 27/101:40 p.m.SFO - YYZ
Nonstop4h 57mMultiple Airlines
Deal found 15/9C$ 376

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 15 September 2025.
Use the filters below to find and compare flights from Toronto to Sonoma that are best for you.

Fly from

Toronto

Fly to

Sonoma

Route

Depart

Return

Price

HamiltonSan Francisco

YHM - SFO

YHMSFO

Hamilton

Wed 15/10

6:00 a.m.-11:54 a.m.

1 stop8h 54m

San Francisco

Wed 22/10

12:50 p.m.-12:40 a.m.

1 stop8h 50m

C$ 351

HamiltonSan Francisco

YHM - SFO

YHMSFO

Hamilton

Wed 1/10

6:00 a.m.-11:54 a.m.

1 stop8h 54m

San Francisco

Wed 8/10

12:50 p.m.-12:40 a.m.

1 stop8h 50m

C$ 358

HamiltonSan Francisco

YHM - SFO

YHMSFO

Hamilton

Tue 13/1

5:45 a.m.-12:12 p.m.

1 stop9h 27m

San Francisco

Tue 10/2

1:00 p.m.-5:16 p.m.

1 stop25h 16m

C$ 363

HamiltonSan Francisco

YHM - SFO

YHMSFO

Hamilton

Fri 24/10

6:00 a.m.-11:54 a.m.

1 stop8h 54m

San Francisco

Tue 28/10

1:00 p.m.-5:17 p.m.

1 stop25h 17m

C$ 376

TorontoSan Francisco

YYZ - SFO

YYZSFO

Toronto Pearson Intl

Tue 14/10

10:25 p.m.-11:54 a.m.

1 stop16h 29m

San Francisco

Tue 21/10

7:30 a.m.-6:52 p.m.

1 stop8h 22m

C$ 380

HamiltonSan Francisco

YHM - SFO

YHMSFO

Hamilton

Wed 1/10

6:00 a.m.-11:54 a.m.

1 stop8h 54m

San Francisco

Sun 5/10

7:30 a.m.-12:40 a.m.

1 stop14h 10m

C$ 396

TorontoSan Francisco

YYZ - SFO

YYZSFO

Toronto Pearson Intl

Fri 24/10

9:45 a.m.-9:29 a.m.

1 stop26h 44m

San Francisco

Mon 27/10

1:40 p.m.-9:37 p.m.

Nonstop4h 57m

C$ 402

TorontoSan Francisco

YKF - SFO

YKFSFO

Toronto Region of Waterloo Intl

Mon 29/9

6:00 a.m.-1:57 p.m.

2 stops10h 57m

San Francisco

Mon 6/10

7:30 a.m.-12:45 a.m.

1 stop14h 15m

C$ 408

HamiltonSan Francisco

YHM - SFO

YHMSFO

Hamilton

Wed 8/10

6:00 a.m.-9:24 p.m.

1 stop18h 24m

San Francisco

Wed 22/10

12:50 p.m.-12:40 a.m.

1 stop8h 50m

C$ 408

TorontoSan Francisco

YYZ - SFO

YYZSFO

Toronto Pearson Intl

Sun 26/10

9:45 a.m.-12:40 p.m.

Nonstop5h 55m

San Francisco

Sun 25/1

1:00 p.m.-5:23 p.m.

2 stops25h 23m

C$ 412

Flights are sorted by cheapest round-trip flights first.

Deals found on 15/9

Showing 1-10 of 60 results
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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

How far ahead should I book a flight from Toronto to Sonoma?

Use this chart to determine the optimal time to book a round-trip flight from Toronto to Sonoma. Price data was last updated on 12 September 2025.

The price you pay for your flight from Toronto to Sonoma may vary depending on when you book. For the best chance of a lower fare, look to book 68 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from Toronto to Sonoma?

Currently, January is the cheapest month in which you can book a flight from Toronto to Sonoma (average of C$ 276). Flying from Toronto to Sonoma in December is currently the most expensive (average of C$ 368). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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 15 September 2025.

When flying from Toronto to Sonoma, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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 16 December 2024.

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. Sunday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

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 15 September 2025.

The most flights from YTO to SN9 are scheduled on a Wednesday (21 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (16 on average).

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 September 2025.
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
7.9
Good
363 reviews
Check prices

Crew

8.6

Comfort

7.9

Overall

7.9

Entertainment

7.0

Boarding

8.1

Food

7.6

Reviews

1 / 20
2.0
Mediocre

Anonymous,Sep 2025

YYZ - OPO

Very disappointing, booked with Porter airlines and changed to Air Transit last minute. Old plane, cramped seating, even the aisle was the narrowest I’ve ever seen. Very uncomfortable flight. Full meal at 130 am and only a small piece of banana bread in the morning… should be opposite.
Porter Airlines
7.9
Good
363 reviews
Porter Airlines
7.9
Good
363 reviews
Check prices

Crew

8.6

Comfort

7.9

Overall

7.9

Entertainment

7.0

Boarding

8.1

Food

7.6

Reviews

1 / 20
2.0
Mediocre

Anonymous,Sep 2025

YYZ - OPO

Very disappointing, booked with Porter airlines and changed to Air Transit last minute. Old plane, cramped seating, even the aisle was the narrowest I’ve ever seen. Very uncomfortable flight. Full meal at 130 am and only a small piece of banana bread in the morning… should be opposite.
Air Transat
7.7
Good
438 reviews
Porter Airlines
7.9
Good
363 reviews
Check prices

Crew

8.6

Comfort

7.9

Overall

7.9

Entertainment

7.0

Boarding

8.1

Food

7.6

Reviews

1 / 20
2.0
Mediocre

Anonymous,Sep 2025

YYZ - OPO

Very disappointing, booked with Porter airlines and changed to Air Transit last minute. Old plane, cramped seating, even the aisle was the narrowest I’ve ever seen. Very uncomfortable flight. Full meal at 130 am and only a small piece of banana bread in the morning… should be opposite.
United Airlines
7.4
Good
8,929 reviews
Porter Airlines
7.9
Good
363 reviews
Check prices

Crew

8.6

Comfort

7.9

Overall

7.9

Entertainment

7.0

Boarding

8.1

Food

7.6

Reviews

1 / 20
2.0
Mediocre

Anonymous,Sep 2025

YYZ - OPO

Very disappointing, booked with Porter airlines and changed to Air Transit last minute. Old plane, cramped seating, even the aisle was the narrowest I’ve ever seen. Very uncomfortable flight. Full meal at 130 am and only a small piece of banana bread in the morning… should be opposite.
WestJet
7.2
Good
3,091 reviews
Porter Airlines
7.9
Good
363 reviews
Check prices

Crew

8.6

Comfort

7.9

Overall

7.9

Entertainment

7.0

Boarding

8.1

Food

7.6

Reviews

1 / 20
2.0
Mediocre

Anonymous,Sep 2025

YYZ - OPO

Very disappointing, booked with Porter airlines and changed to Air Transit last minute. Old plane, cramped seating, even the aisle was the narrowest I’ve ever seen. Very uncomfortable flight. Full meal at 130 am and only a small piece of banana bread in the morning… should be opposite.
Air Canada
7.1
Good
10,000 reviews
Porter Airlines
7.9
Good
363 reviews
Check prices

Crew

8.6

Comfort

7.9

Overall

7.9

Entertainment

7.0

Boarding

8.1

Food

7.6

Reviews

1 / 20
2.0
Mediocre

Anonymous,Sep 2025

YYZ - OPO

Very disappointing, booked with Porter airlines and changed to Air Transit last minute. Old plane, cramped seating, even the aisle was the narrowest I’ve ever seen. Very uncomfortable flight. Full meal at 130 am and only a small piece of banana bread in the morning… should be opposite.

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 55m. 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$ 209 on WestJet. Other airlines that offer cheap prices include Air Canada from C$ 240 and United Airlines from C$ 258 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 Hamilton - 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 Porter Airlines (82%), Air Transat (82%) and Singapore Airlines (61%).

  • What are the cheapest flights from Toronto to Sonoma?

    While on average a flight from Toronto to Sonoma is generally C$ 1,321, our data shows the cheapest flight currently is C$ 250. When looking at the most popular route, (Toronto Pearson Intl - San Francisco), you can expect to pay C$ 296 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.

  • What is the cheapest month to book a flight from Toronto to Sonoma?

    Currently, January is the cheapest month in which you can book a flight from Toronto to Sonoma (average of C$ 276). Flying from Toronto to Sonoma in December is currently the most expensive (average of C$ 368). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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 8 airlines flying from Toronto to Sonoma

Discover the top 8 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 15 September 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapestC$ 257AverageC$ 694FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
WestJetCheapestC$ 286AverageC$ 494FlexibilityNo cancel feeOn-time60%
Search WestJet flights
DeltaCheapestC$ 299AverageC$ 560FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Air CanadaCheapestC$ 329AverageC$ 598FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Porter AirlinesCheapestC$ 347AverageC$ 490FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
Alaska AirlinesCheapestC$ 422AverageC$ 644FlexibilityNo cancel feeOn-time75%
Search Alaska Airlines flights
Air TransatCheapestC$ 423AverageC$ 512FlexibilityNo cancel feeOn-time50%
Search Air Transat flights
United AirlinesCheapestC$ 429AverageC$ 652FlexibilityNo 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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