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$166+ 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 8/29. Fares are subject to change and may not be available on all flights or dates of travel.
YHM — SAN
Aug 3 — Aug 101
Sun 8/3
Sun 8/10
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 July 29, 2025.

Round-trip from

$296
(Trip.com)

One-way from

$166
(KAYAK)

Popular in

May

Cheapest in

March

Average price

$275
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 July 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 July 29, 2025.

This Trip.com deal was found by Cheapflights users on 7/27. 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 8/226:00 amYHM - SAN
1 stop10h 20mWestJet
Sun 8/2411:15 amSAN - YHM
1 stop10h 26mWestJet
Deal found 7/27$296
This Mytrip deal was found by Cheapflights users on 7/28. 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.
Mon 8/256:00 amYHM - SAN
3 stops20h 37mMultiple Airlines
Thu 8/2811:15 amSAN - YHM
1 stop10h 26mMultiple Airlines
Deal found 7/28$383

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 July 29, 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

Fri 8/22

6:00 am-1:20 pm

1 stop10h 20m

San Diego

Sun 8/24

11:15 am-12:41 am

1 stop10h 26m

$296

HamiltonSan Diego

YHM - SAN

YHMSAN

Hamilton

Mon 8/25

6:00 am-11:37 pm

3 stops20h 37m

San Diego

Thu 8/28

11:15 am-12:41 am

1 stop10h 26m

$383

HamiltonSan Diego

YHM - SAN

YHMSAN

Hamilton

Fri 8/29

6:00 am-1:20 pm

1 stop10h 20m

$166

HamiltonSan Diego

YHM - SAN

YHMSAN

Hamilton

Mon 8/25

6:00 am-7:21 am

3 stops28h 21m

$195

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/28

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.

Reviews of airlines servicing San Diego

Get insights into the airlines that provide service to San Diego. 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 San Diego. Reviews last updated July 29, 2025.
Read through reviews of airlines operating flights from Hamilton to San Diego, such as WestJet. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
WestJet
7.2
Good
2,972 reviews

Food

6.2

Overall

7.2

Boarding

7.4

Entertainment

6.1

Crew

7.9

Comfort

7.0

Reviews

1 / 20
6.0
Good

Deb,Jan 2025

YYZ - YYC

Boarding went smoothly, you didn't accept debit card for food on flight
WestJet
7.2
Good
2,972 reviews
WestJet
7.2
Good
2,972 reviews

Food

6.2

Overall

7.2

Boarding

7.4

Entertainment

6.1

Crew

7.9

Comfort

7.0

Reviews

1 / 20
6.0
Good

Deb,Jan 2025

YYZ - YYC

Boarding went smoothly, you didn't accept debit card for food on flight

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.

  • What is the cheapest airline to fly from Hamilton, Ontario to San Diego round-trip?

    According to our current data, WestJet ($296), offers the cheapest pricing from Hamilton, Ontario to San Diego. WestJet is currently priced 24% below the average price you’ll pay for this route.

  • 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
Coronado
Poway
National City
Lemon Grove
Imperial Beach
La Mesa
Alpine
Santee

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