Find flights
Deals
When to book
Airlines
FAQs

Cheap flights from Toronto to Sonoma from C$ 280

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
9 Sep — 16 Sep1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Toronto to Sonoma are usually found in November or January, booked 44 days in advance, depart on a Friday or Thursday and return on a Tuesday

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 10 August 2026.

Tue 22/99:45 a.m. -
Nonstop5h 30m
Wed 23/91:20 p.m. -
Nonstop5h 05m
Deal found 7/8C$ 419
Fri 4/97:20 p.m. -
Nonstop5h 32m
Sun 6/910:45 p.m. -
Nonstop4h 55m
Deal found 7/8C$ 433
Thu 3/96:00 a.m. -
1 stop9h 00m
Wed 9/96:05 p.m. -
1 stop8h 40m
Deal found 6/8C$ 436
Wed 2/97:20 p.m. -
Nonstop5h 32m
Sun 6/910:45 p.m. -
Nonstop4h 55m
Deal found 7/8C$ 440
Thu 10/97:20 p.m. -
Nonstop5h 29m
Thu 17/910:45 p.m. -
Nonstop4h 56m
Deal found 7/8C$ 443
Thu 3/97:20 p.m. -
Nonstop5h 32m
Wed 9/910:45 p.m. -
Nonstop4h 56m
Deal found 10/8C$ 445
Thu 17/97:20 p.m. -
Nonstop5h 29m
Mon 28/910:45 p.m. -
Nonstop4h 56m
Deal found 10/8C$ 446
Thu 10/93:50 p.m. -
1 stop9h 05m
Thu 17/91:00 p.m. -
1 stop8h 10m
Deal found 6/8C$ 447
Thu 17/97:20 p.m. -
Nonstop5h 29m
Sat 19/910:45 p.m. -
Nonstop4h 56m
Deal found 6/8C$ 450
Wed 2/96:10 p.m. -
1 stop30h 45m
Sun 6/96:00 a.m. -
1 stop8h 15m
Deal found 6/8C$ 482
Mon 21/96:10 p.m. -
1 stop20h 50m
Mon 28/96:00 a.m. -
1 stop8h 15m
Deal found 7/8C$ 484
Thu 10/96:10 p.m. -
1 stop20h 50m
Thu 17/96:00 a.m. -
1 stop8h 15m
Deal found 6/8C$ 485

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 10 August 2026.

Round-trip from

C$ 419

One-way from

C$ 280

Popular in

July

Cheapest in

November

Average price

C$ 663
Air Transat
  • Air Transat
  • 22/9-23/9
  • Nonstop
  • 10h 35m total
  • Toronto to Sonoma
Search Deals
WestJet
  • WestJet
  • 3/9
  • 1 total stop
  • 30h 45m total
  • Toronto to Sonoma
Search Deals
Highest demand for flights based on searches. 11% potential increase in price (C$ 101 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (C$ 14 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in August 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 10 August 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

TorontoSan Francisco

YKF Toronto Region of Waterloo Intl - SFO San Francisco

YKFSFO

Toronto Region of Waterloo Intl

Sat 5/9

8:40 p.m.-4:40 p.m.

1 stop23h 00m

San Francisco

Sat 12/9

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

1 stop10h 50m

C$ 510

TorontoSan Francisco

YKF Toronto Region of Waterloo Intl - SFO San Francisco

YKFSFO

Toronto Region of Waterloo Intl

Wed 9/9

8:40 p.m.-9:55 p.m.

1 stop28h 15m

San Francisco

Sat 19/9

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

1 stop10h 50m

C$ 517

TorontoSan Francisco

YYZ Toronto Pearson Intl - SFO San Francisco

YYZSFO

Toronto Pearson Intl

Thu 22/10

5:49 p.m.-11:56 p.m.

1 stop9h 07m

San Francisco

Mon 26/10

10:30 p.m.-12:19 p.m.

1 stop10h 49m

C$ 527

TorontoSan Francisco

YYZ Toronto Pearson Intl - SFO San Francisco

YYZSFO

Toronto Pearson Intl

Sat 31/10

11:38 a.m.-8:06 p.m.

1 stop11h 28m

San Francisco

Fri 13/11

10:59 p.m.-8:55 a.m.

1 stop6h 56m

C$ 528

TorontoSan Francisco

YKF Toronto Region of Waterloo Intl - SFO San Francisco

YKFSFO

Toronto Region of Waterloo Intl

Thu 3/9

8:40 p.m.-9:55 p.m.

1 stop28h 15m

San Francisco

Wed 9/9

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

1 stop10h 50m

C$ 528

TorontoSan Francisco

YKF Toronto Region of Waterloo Intl - SFO San Francisco

YKFSFO

Toronto Region of Waterloo Intl

Fri 18/9

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$ 544

TorontoSan Francisco

YYZ Toronto Pearson Intl - SFO San Francisco

YYZSFO

Toronto Pearson Intl

Tue 8/9

5:16 p.m.-10:55 p.m.

1 stop8h 39m

San Francisco

Wed 9/9

10:45 p.m.-6:41 a.m.

Nonstop4h 56m

C$ 545

TorontoSan Francisco

YKF Toronto Region of Waterloo Intl - SFO San Francisco

YKFSFO

Toronto Region of Waterloo Intl

Thu 17/9

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

1 stop18h 20m

San Francisco

Wed 23/9

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

1 stop10h 50m

C$ 545

HamiltonSan Francisco

YHM Hamilton - SFO San Francisco

YHMSFO

Hamilton

Wed 2/9

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

1 stop20h 50m

San Francisco

Tue 8/9

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

1 stop8h 15m

C$ 548

HamiltonSan Francisco

YHM Hamilton - SFO San Francisco

YHMSFO

Hamilton

Wed 9/9

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

1 stop20h 50m

San Francisco

Fri 11/9

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

1 stop8h 15m

C$ 559

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/8

Showing 1-10 of 60 resultsSorted by cheapest first
1
2
3
...
6

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 10 August 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 50% 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 10 August 2026.

The most flights from YTO to SN9 are scheduled on a Saturday (24 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (17 on average).

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

Airfare is below average for this route at the moment.
Toronto to Sonoma flights typically cost between C$ 530 and C$ 882 in September.
The cheapest round-trip price found within the last 5 days was C$ 419 on Air Transat (22 Sep-23 Sep).

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 8 August 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. Sunday 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 10 August 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
454 reviews
Check prices

Comfort

8.0

Entertainment

6.9

Food

7.6

Crew

8.6

Overall

8.0

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Regan,Aug 2026

YYZ - YVR

My first flight with an all female flight crew who were the best ever.
Porter Airlines
8.0
Very good
454 reviews
Porter Airlines
8.0
Very good
454 reviews
Check prices

Comfort

8.0

Entertainment

6.9

Food

7.6

Crew

8.6

Overall

8.0

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Regan,Aug 2026

YYZ - YVR

My first flight with an all female flight crew who were the best ever.
Air Transat
7.8
Good
572 reviews
Porter Airlines
8.0
Very good
454 reviews
Check prices

Comfort

8.0

Entertainment

6.9

Food

7.6

Crew

8.6

Overall

8.0

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Regan,Aug 2026

YYZ - YVR

My first flight with an all female flight crew who were the best ever.
United Airlines
7.4
Good
10,103 reviews
Porter Airlines
8.0
Very good
454 reviews
Check prices

Comfort

8.0

Entertainment

6.9

Food

7.6

Crew

8.6

Overall

8.0

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Regan,Aug 2026

YYZ - YVR

My first flight with an all female flight crew who were the best ever.
WestJet
7.2
Good
3,430 reviews
Porter Airlines
8.0
Very good
454 reviews
Check prices

Comfort

8.0

Entertainment

6.9

Food

7.6

Crew

8.6

Overall

8.0

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Regan,Aug 2026

YYZ - YVR

My first flight with an all female flight crew who were the best ever.
Air Canada
7.1
Good
11,460 reviews
Porter Airlines
8.0
Very good
454 reviews
Check prices

Comfort

8.0

Entertainment

6.9

Food

7.6

Crew

8.6

Overall

8.0

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Regan,Aug 2026

YYZ - YVR

My first flight with an all female flight crew who were the best ever.

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 30m. 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$ 178 on WestJet. Other airlines that offer cheap prices include Porter Airlines from C$ 214 and Air Transat from C$ 226 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 Singapore Airlines (75%), American Airlines (66%) and Porter Airlines (66%).

  • What are the cheapest flights from Toronto to Sonoma?

    While on average a flight from Toronto to Sonoma is generally C$ 2,897, our data shows the cheapest flight currently is C$ 295. When looking at the most popular route, (Toronto Pearson Intl - San Francisco), you can expect to pay C$ 393 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Toronto to Sonoma

See prices for flight routes from nearby airports that may be better suited for you.
Pearson Intl to Las Vegas flights
Pearson Intl to Los Angeles flights
Pearson Intl to San Francisco flights
Pierre Elliott Trudeau Intl to Los Angeles flights
Pierre Elliott Trudeau Intl to Las Vegas flights
Toronto Island to Las Vegas flights
Pearson Intl to Ontario flights
Pearson Intl to San Diego flights
Pierre Elliott Trudeau Intl to San Francisco flights
Toronto Island to Los Angeles flights
Hamilton to Las Vegas flights
Hamilton to Los Angeles flights
Toronto Island to San Francisco flights
Pierre Elliott Trudeau Intl to Ontario flights
Region of Waterloo Intl to Los Angeles flights
Region of Waterloo Intl to Las Vegas flights
Hamilton to San Francisco flights
Pierre Elliott Trudeau Intl to San Diego flights
Ottawa to Las Vegas flights
Pearson Intl to Palm Springs flights
Pearson Intl to Sacramento flights
Region of Waterloo Intl to San Francisco flights
Toronto Island to San Diego flights
Pearson Intl to San Jose flights
Pearson Intl to Santa Ana flights
Ottawa to Los Angeles flights
London to Los Angeles flights
Ottawa to San Francisco flights
Pierre Elliott Trudeau Intl to San Jose flights
Pierre Elliott Trudeau Intl to Santa Ana flights
Pearson Intl to Reno flights
Ottawa to Sacramento flights
Hamilton to San Diego flights
Pierre Elliott Trudeau Intl to Burbank flights
Pearson Intl to Burbank flights
Pearson Intl to Fresno flights
Pearson Intl to Oakland flights
Hamilton to Palm Springs flights
Pierre Elliott Trudeau Intl to Palm Springs flights
Ottawa to San Diego flights
Hamilton to Sacramento flights
Pierre Elliott Trudeau Intl to Sacramento flights
Hamilton to Santa Ana flights
Region of Waterloo Intl to San Diego flights
Pierre Elliott Trudeau Intl to Santa Barbara flights
Windsor to Las Vegas flights
Pearson Intl to Long Beach flights
Ottawa to Ontario flights

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 10 August 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapestC$ 240AverageC$ 570FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
WestJetCheapestC$ 290AverageC$ 403FlexibilityNo cancel feeOn-time60%
Search WestJet flights
Porter AirlinesCheapestC$ 315AverageC$ 507FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
Air CanadaCheapestC$ 335AverageC$ 700FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
American AirlinesCheapestC$ 351AverageC$ 715FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
Air TransatCheapestC$ 380AverageC$ 578FlexibilityNo cancel feeOn-time50%
Search Air Transat flights
United AirlinesCheapestC$ 467AverageC$ 682FlexibilityNo 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.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.