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Cheap flights from Toronto to Fremont from C$ 179

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 14/10. Fares are subject to change and may not be available on all flights or dates of travel.
YTO — SFO
11 Oct — 18 Oct1
1 adult
1 adult, Economy

Cheapflights Tip: The best prices from Toronto to Fremont are usually found in April or March, booked 67 days in advance, depart on a Friday or Thursday and return on a Friday

Cheap flight deals from Toronto to Fremont

Keep the following information in mind while searching for Toronto to Fremont flight deals. Data was last updated 11 September 2025.

Round-trip from

C$ 305

One-way from

C$ 179

Popular in

December

Cheapest in

April

Average price

C$ 582
WestJet
  • WestJet
  • 2/10-6/10
  • 2 total stops
  • 17h 44m total
  • Toronto to Fremont
Search Deals
WestJet
  • WestJet
  • 14/10
  • 1 total stop
  • 8h 54m total
  • Toronto to Fremont
Search Deals
Highest demand for flights based on searches. 5% potential increase in price (C$ 44 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 19 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 2025
Search Deals

Find flight deals from Toronto to Fremont

Cheapest flights from Toronto to Fremont
Explore the most affordable flight options available from Toronto to Fremont. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 11 September 2025.

Wed 1/106:00 a.m.YHM - SFO
1 stop8h 54mWestJet
Wed 8/1012:50 p.m.SFO - YHM
1 stop8h 50mWestJet
Deal found 9/9C$ 342
Tue 7/106:00 a.m.YHM - SFO
1 stop8h 54mWestJet
Fri 17/1012:50 p.m.SFO - YHM
1 stop8h 50mWestJet
Deal found 11/9C$ 352
Wed 8/106:00 a.m.YHM - SFO
1 stop8h 54mWestJet
Sun 12/107:30 a.m.SFO - YHM
1 stop14h 10mWestJet
Deal found 10/9C$ 353
Fri 3/106:00 a.m.YHM - SFO
1 stop18h 24mWestJet
Mon 6/1012:50 p.m.SFO - YHM
1 stop8h 50mWestJet
Deal found 9/9C$ 363
Tue 21/106:00 a.m.YHM - SFO
1 stop8h 54mWestJet
Tue 28/101:00 p.m.SFO - YHM
1 stop25h 17mWestJet
Deal found 9/9C$ 366
Tue 7/106:00 a.m.YHM - SFO
1 stop8h 54mWestJet
Tue 14/1012:50 p.m.SFO - YHM
1 stop8h 50mWestJet
Deal found 9/9C$ 374
Fri 3/1012:00 p.m.YYZ - SFO
2 stops12h 24mWestJet
Mon 13/102:45 p.m.SFO - YYZ
1 stop19h 53mWestJet
Deal found 11/9C$ 381
Fri 3/106:00 a.m.YKF - SFO
1 stop18h 24mWestJet
Thu 9/1012:50 p.m.SFO - YKF
1 stop8h 55mWestJet
Deal found 9/9C$ 382
Thu 2/1010:40 a.m.YYZ - SFO
1 stop10h 27mMultiple Airlines
Wed 12/118:00 a.m.SFO - YYZ
1 stop8h 55mMultiple Airlines
Deal found 9/9C$ 382
Fri 17/106:00 a.m.YHM - SFO
1 stop8h 54mWestJet
Mon 20/107:30 a.m.SFO - YHM
1 stop14h 10mWestJet
Deal found 9/9C$ 384
Tue 14/1010:25 p.m.YYZ - SFO
2 stops16h 29mWestJet
Tue 21/1012:50 p.m.SFO - YYZ
1 stop8h 32mWestJet
Deal found 9/9C$ 384
Wed 15/1010:25 p.m.YYZ - SFO
1 stop25h 59mWestJet
Wed 22/1012:50 p.m.SFO - YYZ
2 stops14h 01mWestJet
Deal found 10/9C$ 385

Cheapflights Fare Finder

 
Customize your flight search to find flights from Toronto to Fremont 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 11 September 2025.
Use the filters below to find and compare flights from Toronto to Fremont that are best for you.

Fly from

Toronto

Fly to

Fremont

Route

Depart

Return

Price

HamiltonSan Francisco

YHM - SFO

YHMSFO

Hamilton

Tue 7/10

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

1 stop8h 54m

San Francisco

Tue 14/10

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

1 stop8h 50m

C$ 374

HamiltonSan Francisco

YHM - SFO

YHMSFO

Hamilton

Mon 6/10

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

1 stop8h 54m

San Francisco

Mon 13/10

2:45 p.m.-12:40 a.m.

2 stops30h 55m

C$ 391

TorontoSan Francisco

YKF - SFO

YKFSFO

Toronto Region of Waterloo Intl

Sat 18/10

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

1 stop8h 54m

San Francisco

Wed 22/10

12:50 p.m.-12:45 a.m.

1 stop8h 55m

C$ 394

TorontoSan Francisco

YKF - SFO

YKFSFO

Toronto Region of Waterloo Intl

Sat 18/10

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

1 stop8h 54m

San Francisco

Fri 24/10

12:50 p.m.-12:45 a.m.

1 stop8h 55m

C$ 394

TorontoSan Francisco

YKF - SFO

YKFSFO

Toronto Region of Waterloo Intl

Tue 14/10

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

1 stop8h 54m

San Francisco

Fri 24/10

12:50 p.m.-12:45 a.m.

1 stop8h 55m

C$ 394

TorontoSan Francisco

YKF - SFO

YKFSFO

Toronto Region of Waterloo Intl

Fri 17/10

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

1 stop8h 54m

San Francisco

Fri 24/10

12:50 p.m.-12:45 a.m.

1 stop8h 55m

C$ 394

TorontoSan Francisco

YKF - SFO

YKFSFO

Toronto Region of Waterloo Intl

Fri 17/10

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

1 stop8h 54m

San Francisco

Wed 22/10

12:50 p.m.-12:45 a.m.

1 stop8h 55m

C$ 394

TorontoSan Francisco

YKF - SFO

YKFSFO

Toronto Region of Waterloo Intl

Tue 14/10

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

1 stop8h 54m

San Francisco

Thu 23/10

12:50 p.m.-12:45 a.m.

1 stop8h 55m

C$ 394

HamiltonSan Francisco

YHM - SFO

YHMSFO

Hamilton

Sat 11/10

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

1 stop8h 54m

San Francisco

Fri 17/10

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

1 stop8h 50m

C$ 394

TorontoSan Francisco

YKF - SFO

YKFSFO

Toronto Region of Waterloo Intl

Sun 19/10

6:15 a.m.-9:24 p.m.

2 stops18h 09m

San Francisco

Fri 24/10

12:50 p.m.-5:15 a.m.

1 stop13h 25m

C$ 420

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/9

Showing 1-10 of 60 results
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Best time to book a flight from Toronto to Fremont

Have a flexible travel schedule? Discover the best time to fly to Fremont 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 Fremont

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

Use this chart to determine the optimal time to book a round-trip flight from Toronto to Fremont. Price data was last updated on 29 August 2025.

The best time to book flights from Toronto to Fremont is 67 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Currently, January is the cheapest month in which you can book a flight from Toronto to Fremont (average of C$ 276). Flying from Toronto to Fremont 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 FR8?

Find hourly flight availability from Toronto to Fremont. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 11 September 2025.

When flying from Toronto to Fremont, 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 Fremont?

Use this chart to determine the cheapest time to fly round-trip from Toronto to Fremont. Price data was last updated on 16 December 2024.

Travelers seeking maximum savings on their Toronto to Fremont 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 Fremont

Explore weekly flight availability from Toronto to Fremont. 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 11 September 2025.

The most flights from YTO to FR8 are scheduled on a Wednesday (21 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (16 on average).

Reviews of airlines servicing Fremont

Get insights into the airlines that provide service to Fremont. 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 Fremont. Reviews last updated 11 September 2025.
Check out reviews from past customers who have flown with Porter Airlines,Air Transat, andUnited Airlines from Toronto to Fremont 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

Boarding

8.1

Entertainment

7.0

Overall

7.9

Food

7.6

Comfort

7.9

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

Boarding

8.1

Entertainment

7.0

Overall

7.9

Food

7.6

Comfort

7.9

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

Boarding

8.1

Entertainment

7.0

Overall

7.9

Food

7.6

Comfort

7.9

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
8,937 reviews
Porter Airlines
7.9
Good
363 reviews
Check prices

Crew

8.6

Boarding

8.1

Entertainment

7.0

Overall

7.9

Food

7.6

Comfort

7.9

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

Boarding

8.1

Entertainment

7.0

Overall

7.9

Food

7.6

Comfort

7.9

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

Boarding

8.1

Entertainment

7.0

Overall

7.9

Food

7.6

Comfort

7.9

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 Fremont. 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 Fremont?

    Departing from Toronto to Fremont will take you 8h 52m. There are 3644 km between Toronto and Fremont. Both multi-stop and direct flights can be found to your destination and back.

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

    The cheapest airline one-way is WestJet, with whom users have recently found tickets for as low as C$ 179. However, be on the lookout for offers from Air Canada and Porter Airlines, as they are both options that can get you from Toronto to Fremont for a low price.

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

    When deciding which route to take from Toronto to Fremont consider Toronto Pearson Intl - San Francisco, Toronto Island - San Francisco or Hamilton - San Francisco as they are the most popular.

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

    The top 3 most reliable airlines when flying from Toronto to Fremont are Porter Airlines (82%), Air Transat (82%) and Singapore Airlines (61%).

  • What are the cheapest flights from Toronto to Fremont?

    Looking at all options, your cheapest flight can be booked for C$ 251. While the most popular route (Toronto Pearson Intl - San Francisco) can be booked for C$ 258 on average, our data indicates C$ 1,325 when flying from Toronto to Fremont.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Toronto to Fremont 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 Fremont?

    Currently, January is the cheapest month in which you can book a flight from Toronto to Fremont (average of C$ 276). Flying from Toronto to Fremont 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 Fremont

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 Fremont

Discover the top 8 airlines that operate flights from Toronto to Fremont. 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 11 September 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapestC$ 258AverageC$ 594FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
WestJetCheapestC$ 287AverageC$ 430FlexibilityNo cancel feeOn-time60%
Search WestJet flights
DeltaCheapestC$ 299AverageC$ 506FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Air CanadaCheapestC$ 330AverageC$ 560FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Porter AirlinesCheapestC$ 348AverageC$ 497FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
United AirlinesCheapestC$ 385AverageC$ 558FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Alaska AirlinesCheapestC$ 390AverageC$ 650FlexibilityNo cancel feeOn-time75%
Search Alaska Airlines flights
Air TransatCheapestC$ 425AverageC$ 513FlexibilityNo cancel feeOn-time50%
Search Air Transat 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 Fremont?

Deals for Toronto to Fremont flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

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

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

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

Cheapflights does show flights with no change fees to all users. To see these options for flights from Toronto to Fremont, users can toggle the no change fees filter when performing a flight search.

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

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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