Cheap flights from Calgary to San Diego from C$ 138

In general, August is the cheapest month to fly from Calgary to San Diego. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around C$ 290. If you are unable to visit San Diego during the month of August, then departing from Calgary during the month July is also very affordable. Most momondo users find prices during this month for around C$ 293.

The cheapest day to depart on your flight to San Diego is on a Thursday when prices can be found for as low as C$ 303. This is often the case because there is less demand to fly during this day of the week. Be sure to avoid booking your departure on a Saturday as prices are generally higher than usual. According to our data, the average ticket price to San Diego on Saturday is C$ 446.

Fly from Calgary to San Diego for the best Calgary - San Diego flight prices

You are more likely to see cheaper flights to San Diego from Calgary when booking weeks ahead of your departure date. In general, you can expect to find flights to San Diego for around C$ 417 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Diego from Calgary for as low as C$ 255 on momondo.

There are 2 cabin classes available to choose from on Calgary to San Diego flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

You could potentially save up to 4% on your flight if you consider stops on a Calgary to San Diego flight.

Air Canada and United Airlines are the most popular carriers operating from Calgary to San Diego

WestJet, Air Canada and Delta are the top three most popular airlines that fly to San Diego from Calgary according to our data. WestJet is the first choice among our users, with 83% of people opting to fly with this airline when travelling to San Diego. Keep in mind that there are 4 different airlines that fly to San Diego on a routine basis, so you have a few additional options to choose from.

Historically, on average around 19% of flights between Calgary and San Diego have experienced a delay on any given week. The average delay length over the past 12 months has been 103 minutes.

Generally, flights departing in the evening tend to experience fewer delays. Flights departing in the early afternoon have, in the past, seen delays more frequently in comparison.

Wednesday is statistically the day of the week that experiences the fewest delays on this flight route. Monday has historically seen more delays on average compared to the rest of the week.

According to our data, WestJet has had the least delays on this route over the last 12 months, with about 18% of their flights experiencing any sort of delay.

Vancouver (YVR) was the most common stop: 50% of momondo users choosing one-stop flights on this route connected there.

Flights via San Francisco (SFO) offer the lowest average round-trip price of C$ 329.

Flights connecting via San Francisco (SFO) have the shortest average one-way travel time: 5h 27m.

Dallas (DFW) has the shortest average layover time for this route: 1h 42m.

1 flights are operational daily from Calgary to San Diego as of February 2026. The most popular departure time for this route is 9:00a.m., with 100% of flights per day taking off at noon.

8 flights are operational weekly from Calgary to San Diego as of February 2026. The most popular departure day for this route is Mon, with 25% of flights per week taking off on this day.