Find cheap Delta flights to San Diego from $79 - Compare and Save

The cheapest month for Delta flights to San Diego is January, where tickets cost $325 (return) on average. On the other hand, the most expensive months to fly this route on Delta are November and October, where the average cost of round-trip tickets is $416 and $415 respectively.

For the absolute cheapest price on Delta, our data suggests you should book 4 weeks before departure.

The cheapest airline ticket to San Diego from the United States with Delta in the last 5 days was $79 one-way, and $143 round-trip on the route from Seattle to San Diego. The most popular route is from Seattle to San Diego and the cheapest ticket found on this route in the last 5 days was $143 return.

Each week there are around 289 direct flights from within the United States to San Diego. The most common day for departures is Sunday, with 23% of flights taking off on this day.

Based on KAYAK data, the cheapest day to fly to San Diego is Friday where tickets can be as cheap as $505. On the other hand, the most expensive day to fly is Sunday, where prices are $570 on average.

The cheapest time of day to fly to San Diego with Delta is generally in the evening, when flights cost $452 on average.