HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
San Francisco

$166+ Cheap flights from Hamilton, ON (YHM) to San Francisco (SFO)

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 3/10. Fares are subject to change and may not be available on all flights or dates of travel.
YHM — SFO
Mar 9 — Mar 161
Mon 3/9
Mon 3/16
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Hamilton to San Francisco with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Hamilton to San Francisco

Cheapest flights from Hamilton to San Francisco
Explore the most affordable flight options available from Hamilton to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 7, 2026.

This Trip.com deal was found by Cheapflights users on 2/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/276:10 pm
YHM
-
SFO
1 stop20h 50m
WestJet
Fri 5/16:00 am
SFO
-
YHM
1 stop8h 15m
WestJet
Deal found 2/4$279
This Trip.com deal was found by Cheapflights users on 2/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/26:10 pm
YHM
-
SFO
1 stop20h 50m
WestJet
Sun 5/176:00 am
SFO
-
YHM
1 stop8h 15m
WestJet
Deal found 2/4$285
This oojo deal was found by Cheapflights users on 2/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/236:10 pm
YHM
-
SFO
1 stop21h 00m
WestJet
Mon 4/276:00 am
SFO
-
YHM
1 stop8h 15m
WestJet
Deal found 2/3$298
This FlightHub deal was found by Cheapflights users on 2/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/56:10 pm
YHM
-
SFO
1 stop20h 50m
WestJet
Mon 5/116:00 am
SFO
-
YHM
1 stop8h 15m
WestJet
Deal found 2/6$308
This Trip.com deal was found by Cheapflights users on 2/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/156:10 pm
YHM
-
SFO
1 stop30h 45m
WestJet
Sun 5/176:00 am
SFO
-
YHM
1 stop8h 15m
WestJet
Deal found 2/4$318
This oojo deal was found by Cheapflights users on 2/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/26:10 pm
YHM
-
SFO
1 stop30h 45m
WestJet
Sat 5/306:00 am
SFO
-
YHM
1 stop8h 15m
WestJet
Deal found 2/4$320
This FlightHub deal was found by Cheapflights users on 2/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/126:10 pm
YHM
-
SFO
1 stop25h 30m
WestJet
Sat 6/206:00 am
SFO
-
YHM
1 stop8h 15m
WestJet
Deal found 2/4$321
This Trip.com deal was found by Cheapflights users on 2/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/26:10 pm
YHM
-
SFO
1 stop20h 50m
WestJet
Sat 5/91:00 pm
SFO
-
YHM
1 stop25h 15m
WestJet
Deal found 2/6$324
This oojo deal was found by Cheapflights users on 2/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/16:10 pm
YHM
-
SFO
1 stop25h 30m
WestJet
Tue 6/166:00 am
SFO
-
YHM
1 stop8h 15m
WestJet
Deal found 2/4$329
This Justfly.com deal was found by Cheapflights users on 2/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/126:10 pm
YHM
-
SFO
1 stop20h 50m
WestJet
Sun 6/216:05 pm
SFO
-
YHM
1 stop20h 05m
WestJet
Deal found 2/4$333
This Trip.com deal was found by Cheapflights users on 2/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/126:10 pm
YHM
-
SFO
1 stop30h 45m
WestJet
Fri 6/196:05 pm
SFO
-
YHM
1 stop20h 10m
WestJet
Deal found 2/4$335

Find flight deals from Hamilton to San Francisco

Discover tips and strategies to find the most affordable flight options for your journey from Hamilton (YHM) to San Francisco (SFO). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated February 7, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$279
(Trip.com)

One-way from

$166
(oojo)

Popular in

August

Cheapest in

February

Average price

$236
Provider with most accurate pricing for Hamilton-San Francisco flight deals.
Search Deals
Provider most trusted by Cheapflights users for Hamilton-San Francisco flights.
Search Deals
From Hamilton to San Francisco
Search Deals
One-way flight from Hamilton to San Francisco
Search Deals
Highest demand for flights based on searches. 39% potential increase in price ($281 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 29% potential price decrease ($99 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Hamilton to San Francisco 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 2,558,603 searches. Data last updated February 7, 2026.
Use the filters below to find and compare flights from Hamilton to San Francisco that are best for you.

Fly from

Hamilton

Fly to

San Francisco

Route

Depart

Return

Price

HamiltonSan Francisco

YHM - SFO

YHMSFO

Hamilton

Mon 4/27

6:10 pm-12:00 pm

1 stop20h 50m

San Francisco

Fri 5/1

6:00 am-5:15 pm

1 stop8h 15m

$279

HamiltonSan Francisco

YHM - SFO

YHMSFO

Hamilton

Sat 5/2

6:10 pm-12:00 pm

1 stop20h 50m

San Francisco

Sun 5/17

6:00 am-5:15 pm

1 stop8h 15m

$285

HamiltonSan Francisco

YHM - SFO

YHMSFO

Hamilton

Thu 4/23

6:10 pm-12:10 pm

1 stop21h 00m

San Francisco

Mon 4/27

6:00 am-5:15 pm

1 stop8h 15m

$298

HamiltonSan Francisco

YHM - SFO

YHMSFO

Hamilton

Sat 5/2

6:10 pm-9:55 pm

1 stop30h 45m

San Francisco

Sat 5/30

6:00 am-5:15 pm

1 stop8h 15m

$320

HamiltonSan Francisco

YHM - SFO

YHMSFO

Hamilton

Sat 5/2

6:10 pm-12:00 pm

1 stop20h 50m

San Francisco

Sat 5/9

1:00 pm-5:15 pm

1 stop25h 15m

$324

HamiltonSan Francisco

YHM - SFO

YHMSFO

Hamilton

Fri 6/12

6:10 pm-12:00 pm

1 stop20h 50m

San Francisco

Sun 6/21

6:05 pm-5:10 pm

1 stop20h 05m

$333

HamiltonSan Francisco

YHM - SFO

YHMSFO

Hamilton

Tue 5/5

6:10 pm-12:00 pm

1 stop20h 50m

San Francisco

Sat 5/9

1:00 pm-5:15 pm

1 stop25h 15m

$339

HamiltonSan Francisco

YHM - SFO

YHMSFO

Hamilton

Mon 5/4

6:10 pm-12:00 pm

1 stop20h 50m

San Francisco

Mon 5/11

6:00 am-5:15 pm

1 stop8h 15m

$345

HamiltonSan Francisco

YHM - SFO

YHMSFO

Hamilton

Thu 4/16

6:10 pm-12:10 pm

1 stop21h 00m

San Francisco

Sun 4/19

1:00 pm-5:16 pm

1 stop25h 16m

$357

HamiltonSan Francisco

YHM - SFO

YHMSFO

Hamilton

Mon 5/25

6:10 pm-9:55 pm

1 stop30h 45m

San Francisco

Tue 6/2

6:00 am-5:15 pm

1 stop8h 15m

$368

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/4

Showing 1-10 of 21 results
1
2
3
  • Most accurate provider: When it comes to deals on Hamilton, Ontario-San Francisco flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Hamilton, Ontario-San Francisco flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Hamilton, Ontario-San Francisco flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Hamilton, Ontario-San Francisco flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Hamilton, Ontario-San Francisco flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Hamilton to San Francisco

Have a flexible travel schedule? Discover the best time to fly to San Francisco from Hamilton 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 Hamilton to San Francisco

What is the cheapest month to book a flight from Hamilton, Ontario to San Francisco?

Currently, April is the cheapest month in which you can book a flight from Hamilton, Ontario to San Francisco (average of $144). Flying from Hamilton, Ontario to San Francisco in December is currently the most expensive (average of $253). 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.

How much does it cost to fly round-trip from Hamilton, Ontario to San Francisco?

Related info for your journey

Find useful and relevant information for your journey from Hamilton to San Francisco. 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 Hamilton, Ontario to San Francisco?

    Departing from Hamilton, Ontario to San Francisco will take you 20h 50m. There are 2240 mi between Hamilton, Ontario and San Francisco.

  • Can I find deals for flights from Hamilton to San Francisco that include hotel bookings?

    Yes. In addition to deals on Hamilton to San Francisco flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Hamilton to San Francisco?

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

  • Can I find deals for business class flights from Hamilton to San Francisco?

    Yes. Cheapflights offers flight deals from Hamilton to San Francisco 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 Hamilton, Ontario to San Francisco?

    Currently, April is the cheapest month in which you can book a flight from Hamilton, Ontario to San Francisco (average of $144). Flying from Hamilton, Ontario to San Francisco in December is currently the most expensive (average of $253). 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

Traveling to a place near San Francisco?

Book flights to San Francisco if you plan to visit one of these locations
South San Francisco
Santa Cruz
Santa Clara
Roseville
Livermore
Watsonville
San Bruno
Daly City
Sunnyvale
Turlock
Vacaville
San Carlos
San Ramon
San Lorenzo
Davis
Hollister
Redwood City
Manteca
Union City
Elk Grove

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 Hamilton to San Francisco

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
Pearson Intl to San Diego flights
Pierre Elliott Trudeau Intl to San Francisco flights
Pearson Intl to Ontario flights
Toronto Island to Los Angeles flights
Toronto Island to San Francisco flights
Pierre Elliott Trudeau Intl to San Diego flights
Hamilton to Las Vegas flights
Ottawa to Los Angeles flights
Pearson Intl to Palm Springs flights
Pearson Intl to San Jose flights
Ottawa to Las Vegas flights
Pearson Intl to Sacramento flights
Pearson Intl to Santa Ana flights
Toronto Island to San Diego flights
Pierre Elliott Trudeau Intl to Ontario flights
Region of Waterloo Intl to Las Vegas flights
Ottawa to Ontario flights
Region of Waterloo Intl to San Francisco flights
Pearson Intl to Oakland flights
Pierre Elliott Trudeau Intl to San Jose flights
Pearson Intl to Burbank flights
Ottawa to San Francisco flights
Hamilton to Los Angeles flights
Pearson Intl to Fresno flights
Pierre Elliott Trudeau Intl to Santa Ana flights
Pierre Elliott Trudeau Intl to Palm Springs flights
Pearson Intl to Reno flights
Hamilton to San Diego flights
Ottawa to Santa Ana flights
Pierre Elliott Trudeau Intl to Sacramento flights
Ottawa to San Diego flights
Hamilton to Palm Springs flights
Hamilton to Santa Ana flights
Pearson Intl to Long Beach flights
Thunder Bay to Las Vegas flights
Pierre Elliott Trudeau Intl to Reno flights
London to San Francisco flights
Windsor to Las Vegas flights
London to Las Vegas flights
Pearson Intl to Santa Rosa flights

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.
Site
©2026 Cheapflights