How long is the flight from Hamilton, Ontario to San Francisco?

There are many flights that can get you from Hamilton, Ontario to San Francisco in 20h 50m. Fly via WestJet to get the fastest option. The distance from Hamilton, Ontario to San Francisco is about 3605 km.

In terms of precipitation, rainfall in San Francisco ranges from 0.0 - 112.0 mm per month. January is typically the wettest month, when rainfall can reach 112.0 mm. July is typically the driest time to visit San Francisco when rainfall is around 0.0 mm.

If weather is an important factor for your trip to San Francisco, use this chart to help with planning. For those seeking warmer temperatures, September is the ideal time of year to visit, when temperatures reach an average of 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 11.0 C).

What is the cheapest time of day to fly from YHM to SFO?

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

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.

C$ 267+ Cheap Flights from Hamilton, ON to San Francisco

Cheap flight deals from Hamilton to San Francisco

Enter your travel dates to find the best prices.

Cheapest

Best

Last-minute

One-way

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 6 September 2026.

Fri 18/96:10 p.m. -

1 stop20h 50m

Mon 21/96:00 a.m. -

1 stop8h 15m

Deal found 4/9C$ 428

Thu 10/96:10 p.m. -

1 stop30h 45m

Mon 14/96:00 a.m. -

1 stop8h 15m

Deal found 2/9C$ 430

Fri 11/96:10 p.m. -

1 stop20h 50m

Mon 14/96:00 a.m. -

1 stop8h 15m

Deal found 3/9C$ 432

Fri 11/96:10 p.m. -

1 stop20h 50m

Wed 16/96:00 a.m. -

1 stop8h 15m

Deal found 3/9C$ 433

Tue 15/96:10 p.m. -

1 stop20h 50m

Wed 23/96:00 a.m. -

1 stop8h 15m

Deal found 4/9C$ 434

Fri 18/96:10 p.m. -

1 stop20h 50m

Tue 22/96:00 a.m. -

1 stop8h 15m

Deal found 4/9C$ 436

Tue 15/96:10 p.m. -

1 stop20h 50m

Tue 22/96:00 a.m. -

1 stop8h 15m

Deal found 3/9C$ 439

Wed 16/96:10 p.m. -

1 stop30h 45m

Thu 1/106:00 a.m. -

1 stop8h 15m

Deal found 2/9C$ 443

Wed 16/96:10 p.m. -

1 stop30h 45m

Mon 21/96:00 a.m. -

1 stop8h 15m

Deal found 3/9C$ 445

Wed 30/96:10 p.m. -

1 stop30h 45m

Sun 4/106:00 a.m. -

1 stop8h 15m

Deal found 6/9C$ 447

Fri 2/106:10 p.m. -

1 stop20h 50m

Mon 5/106:00 a.m. -

1 stop8h 15m

Deal found 3/9C$ 450

Find flight deals from Hamilton to San Francisco

Round-trip from	C$ 428
One-way from	C$ 267
Popular in	July
Cheapest in	January
Average price	C$ 541

WestJet
18/9-21/9
2 total stops
29h 05m total
Hamilton to San Francisco

Search Deals

WestJet
18/9-31/12
1 total stop
20h 50m total
Hamilton to San Francisco

Search Deals

Highest demand for flights based on searches. 11% potential increase in price (C$ 100 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 1% potential price decrease (C$ 13 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in September 2026

Search Deals

Cheapflights Fare Finder

Use the filters below to find and compare flights from Hamilton to San Francisco that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

HamiltonSan Francisco

YHM Hamilton - SFO San Francisco

YHMSFO

Hamilton

Tue 15/9

6:10 p.m.-9:55 p.m.

1 stop30h 45m

San Francisco

Wed 31/12

12:00 a.m.-3:00 a.m.

Nonstop0h 00m

C$ 271

HamiltonSan Francisco

YHM Hamilton - SFO San Francisco

YHMSFO

Hamilton

Fri 16/10

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

1 stop20h 50m

San Francisco

Wed 31/12

12:00 a.m.-3:00 a.m.

Nonstop0h 00m

C$ 279

HamiltonSan Francisco

YHM Hamilton - SFO San Francisco

YHMSFO

Hamilton

Fri 2/10

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

1 stop20h 50m

San Francisco

Wed 31/12

12:00 a.m.-3:00 a.m.

Nonstop0h 00m

C$ 281

HamiltonSan Francisco

YHM Hamilton - SFO San Francisco

YHMSFO

Hamilton

Fri 23/10

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

1 stop20h 50m

San Francisco

Wed 31/12

12:00 a.m.-3:00 a.m.

Nonstop0h 00m

C$ 282

HamiltonSan Francisco

YHM Hamilton - SFO San Francisco

YHMSFO

Hamilton

Tue 6/10

6:10 p.m.-9:55 p.m.

1 stop30h 45m

San Francisco

Wed 31/12

12:00 a.m.-3:00 a.m.

Nonstop0h 00m

C$ 285

HamiltonSan Francisco

YHM Hamilton - SFO San Francisco

YHMSFO

Hamilton

Sun 4/10

6:10 p.m.-9:55 p.m.

1 stop30h 45m

San Francisco

Wed 31/12

12:00 a.m.-3:00 a.m.

Nonstop0h 00m

C$ 285

HamiltonSan Francisco

YHM Hamilton - SFO San Francisco

YHMSFO

Hamilton

Thu 1/10

6:10 p.m.-9:55 p.m.

1 stop30h 45m

San Francisco

Wed 31/12

12:00 a.m.-3:00 a.m.

Nonstop0h 00m

C$ 285

HamiltonSan Francisco

YHM Hamilton - SFO San Francisco

YHMSFO

Hamilton

Sat 3/10

7:00 a.m.-9:55 p.m.

2 stops17h 55m

San Francisco

Wed 31/12

12:00 a.m.-3:00 a.m.

Nonstop0h 00m

C$ 338

HamiltonSan Francisco

YHM Hamilton - SFO San Francisco

YHMSFO

Hamilton

Wed 7/10

7:25 a.m.-6:00 p.m.

1 stop13h 35m

San Francisco

Wed 31/12

12:00 a.m.-3:00 a.m.

Nonstop0h 00m

C$ 382

Quickest round-trip

HamiltonSan Francisco

YHM Hamilton - SFO San Francisco

YHMSFO

Hamilton

Wed 30/9

11:45 a.m.-9:55 p.m.

2 stops13h 10m

San Francisco

Wed 31/12

12:00 a.m.-3:00 a.m.

Nonstop0h 00m

C$ 421

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/9

Showing 1-10 of 22 resultsSorted by cheapest first

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.

YHM-SFO

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.

Related info for your journey

How long is the flight from Hamilton, Ontario to San Francisco?
There are many flights that can get you from Hamilton, Ontario to San Francisco in 20h 50m. Fly via WestJet to get the fastest option. The distance from Hamilton, Ontario to San Francisco is about 3605 km.
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.

See more FAQs

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Cheap flights from Hamilton, ON to San Francisco from C$ 267

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 18/9. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Hamilton to San Francisco

Cheapest flights from Hamilton to San FranciscoExplore 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 6 September 2026.

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 6 September 2026.

Best flights from Hamilton to San FranciscoDiscover carefully curated flight deals from Hamilton to San Francisco that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 6 September 2026.

Discover carefully curated flight deals from Hamilton to San Francisco that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 6 September 2026.

Last-minute flights from Hamilton to San FranciscoDiscover last-minute flight deals from Hamilton to San Francisco. Data last updated 6 September 2026 and is based on user searches.

Discover last-minute flight deals from Hamilton to San Francisco. Data last updated 6 September 2026 and is based on user searches.

One-way flights from Hamilton to San FranciscoSearch for one-way flight options from Hamilton to San Francisco. Find affordable one-way fares based on user searches. Data last updated 6 September 2026.

Search for one-way flight options from Hamilton to San Francisco. Find affordable one-way fares based on user searches. Data last updated 6 September 2026.

Find flight deals from Hamilton to San Francisco

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Use the filters below to find and compare flights from Hamilton to San Francisco that are best for you.

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.

Related info for your journey

How long is the flight from Hamilton, Ontario to San Francisco?

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

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

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

Travelling to a place near San Francisco?

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Hamilton to San Francisco

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Complete your trip

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Direct flights to California

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Search flights from Hamilton to San Francisco by cabin class

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Hamilton and San Francisco flights

Browse other Hamilton and San Francisco flight options. Last updated on 6 September 2026.

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Can Cheapflights notify me if prices for flights from Hamilton to San Francisco become cheaper?

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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 6 September 2026.

Best flights from Hamilton to San Francisco
Discover carefully curated flight deals from Hamilton to San Francisco that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 6 September 2026.

Last-minute flights from Hamilton to San Francisco
Discover last-minute flight deals from Hamilton to San Francisco. Data last updated 6 September 2026 and is based on user searches.

One-way flights from Hamilton to San Francisco
Search for one-way flight options from Hamilton to San Francisco. Find affordable one-way fares based on user searches. Data last updated 6 September 2026.