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$175+ Cheap flights from Hamilton, ON (YHM) to San Diego (SAN)

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 10/4. Fares are subject to change and may not be available on all flights or dates of travel.
YHM — SAN
Oct 13 — Oct 201
Mon 10/13
Mon 10/20
1 adult, Economy
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Cheap flight deals from Hamilton to San Diego

Discover tips and strategies to find the most affordable flight options for your journey from Hamilton (YHM) to San Diego (SAN). 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 September 13, 2025.

Round-trip from

$320
(oojo)

One-way from

$175
(Trip.com)

Popular in

May

Cheapest in

March

Average price

$539
From Hamilton to San Diego
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One-way flight from Hamilton to San Diego
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Highest demand for flights based on searches. 28% potential increase in price ($158 potential increase over avg. RT price).
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Cheapest flight prices on average. 10% potential price decrease ($38 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Hamilton to San Diego

Cheapest flights from Hamilton to San Diego
Explore the most affordable flight options available from Hamilton to San Diego. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 13, 2025.

This oojo deal was found by Cheapflights users on 9/11. 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 12/116:10 pmYHM - SAN
1 stop20h 35mWestJet
Sun 12/1412:35 pmSAN - YHM
1 stop25h 42mWestJet
Deal found 9/11$320
This oojo deal was found by Cheapflights users on 9/10. 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.
Wed 9/246:00 amYHM - SAN
1 stop10h 20mWestJet
Sun 9/281:00 pmSAN - YHM
2 stops32h 40mWestJet
Deal found 9/10$444
This Gotogate deal was found by Cheapflights users on 9/11. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/266:10 pmYHM - SAN
1 stop20h 35mWestJet
Sun 11/212:35 pmSAN - YHM
1 stop25h 42mWestJet
Deal found 9/11$598
This Mytrip deal was found by Cheapflights users on 9/11. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/46:00 amYHM - SAN
1 stop10h 20mMultiple Airlines
Thu 10/95:33 pmSAN - YHM
3 stops27h 15mMultiple Airlines
Deal found 9/11$600
This FlightHub deal was found by Cheapflights users on 9/11. 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.
Sat 10/46:00 amYHM - SAN
1 stop10h 20mWestJet
Thu 10/96:20 amSAN - YHM
2 stops15h 20mWestJet
Deal found 9/11$605
This Booking.com deal was found by Cheapflights users on 9/12. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/26:10 pmYHM - SAN
2 stops20h 53mMultiple Airlines
Sat 11/86:10 pmSAN - YHM
2 stops20h 07mMultiple Airlines
Deal found 9/12$667
This Mytrip deal was found by Cheapflights users on 9/11. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/185:45 pmYHM - SAN
3 stops40h 44mMultiple Airlines
Mon 9/221:35 pmSAN - YHM
2 stops24h 09mMultiple Airlines
Deal found 9/11$696
This Mytrip deal was found by Cheapflights users on 9/12. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/127:05 amYHM - SAN
2 stops19h 01mMultiple Airlines
Sun 10/192:05 pmSAN - YHM
2 stops23h 39mMultiple Airlines
Deal found 9/12$766
This WestJet deal was found by Cheapflights users on 9/12. 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 WestJet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/126:00 amYHM - SAN
1 stop10h 20mWestJet
Sun 10/197:48 pmSAN - YHM
2 stops25h 52mWestJet
Deal found 9/12$787
This WestJet deal was found by Cheapflights users on 9/12. 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 WestJet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/156:00 amYHM - SAN
2 stops15h 10mWestJet
Mon 10/206:15 amSAN - YHM
2 stops15h 25mWestJet
Deal found 9/12$833

Cheapflights Fare Finder

 
Customize your flight search to find flights from Hamilton to San Diego 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 September 13, 2025.
Use the filters below to find and compare flights from Hamilton to San Diego that are best for you.

Fly from

Hamilton

Fly to

San Diego

Route

Depart

Return

Price

HamiltonSan Diego

YHM - SAN

YHMSAN

Hamilton

Thu 12/11

6:10 pm-11:45 am

1 stop20h 35m

San Diego

Sun 12/14

12:35 pm-5:17 pm

1 stop25h 42m

$320

HamiltonSan Diego

YHM - SAN

YHMSAN

Hamilton

Wed 9/24

6:00 am-1:20 pm

1 stop10h 20m

San Diego

Sun 9/28

1:00 pm-12:40 am

2 stops32h 40m

$444

HamiltonSan Diego

YHM - SAN

YHMSAN

Hamilton

Sun 10/26

6:10 pm-11:45 am

1 stop20h 35m

San Diego

Sun 11/2

12:35 pm-5:17 pm

1 stop25h 42m

$598

HamiltonSan Diego

YHM - SAN

YHMSAN

Hamilton

Sat 10/4

6:00 am-1:20 pm

1 stop10h 20m

San Diego

Thu 10/9

6:20 am-12:40 am

2 stops15h 20m

$605

HamiltonSan Diego

YHM - SAN

YHMSAN

Hamilton

Sun 11/2

6:10 pm-12:03 pm

2 stops20h 53m

San Diego

Sat 11/8

6:10 pm-5:17 pm

2 stops20h 07m

$667

HamiltonSan Diego

YHM - SAN

YHMSAN

Hamilton

Sun 10/12

6:00 am-11:06 pm

3 stops20h 06m

San Diego

Sun 10/19

2:05 pm-4:44 pm

2 stops23h 39m

$780

HamiltonSan Diego

YHM - SAN

YHMSAN

Hamilton

Sun 10/12

6:00 am-1:20 pm

1 stop10h 20m

San Diego

Sun 10/19

7:48 pm-12:40 am

2 stops25h 52m

$787

HamiltonSan Diego

YHM - SAN

YHMSAN

Hamilton

Sun 2/15

6:10 pm-11:47 am

1 stop20h 37m

San Diego

Sun 2/22

12:35 pm-5:16 pm

1 stop25h 41m

$814

HamiltonSan Diego

YHM - SAN

YHMSAN

Hamilton

Wed 10/15

6:00 am-6:10 pm

2 stops15h 10m

San Diego

Mon 10/20

6:15 am-12:40 am

2 stops15h 25m

$833

HamiltonSan Diego

YHM - SAN

YHMSAN

Hamilton

Sat 10/4

7:05 am-3:25 pm

3 stops35h 20m

San Diego

Thu 10/9

5:33 pm-11:48 pm

3 stops27h 15m

$855

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/11

Showing 1-10 of 19 results
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Best time to book a flight from Hamilton to San Diego

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

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

Currently, August is the cheapest month in which you can book a flight from Hamilton, Ontario to San Diego (average of $286). Flying from Hamilton, Ontario to San Diego in March is currently the most expensive (average of $366). 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.

Related info for your journey

Find useful and relevant information for your journey from Hamilton to San Diego. 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 Diego?

    A quick flight from Hamilton, Ontario to San Diego can take about 20h 35m. WestJet provides one of the quickest options available for as low as $320. Hamilton, Ontario and San Diego are separated by a distance of 2133 mi.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Hamilton to San Diego 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 Diego?

    Currently, August is the cheapest month in which you can book a flight from Hamilton, Ontario to San Diego (average of $286). Flying from Hamilton, Ontario to San Diego in March is currently the most expensive (average of $366). 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 Diego?

Book flights to San Diego if you plan to visit one of these locations
El Cajon
Chula Vista
La Mesa
Poway
Lemon Grove
Coronado
Imperial Beach
National City
Alpine

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