Cheap flights from Baltimore to San Diego from $91

If you are unable to visit San Diego during the month of July, then departing from Baltimore during the month January is also very affordable. Most momondo users find prices during this month for around $358.

The cheapest day to depart from Baltimore to San Diego is on a Wednesday. Travelers who choose to depart for San Diego on a Wednesday will often find tickets for as low as $379. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around $466. These prices are subject to change though, so be sure to set up a Price Alert for flights to San Diego.

The cheapest time of day to fly to San Diego is in the afternoon when flights can be purchased for as low as $389. Flights at noon are often more expensive with an average ticket price of $536.

Fly from Baltimore/Washington to San Diego for the best Baltimore/Washington - San Diego flight prices

You are more likely to see cheaper flights to San Diego from Baltimore when booking weeks ahead of your departure date. In general, you can expect to find flights to San Diego for around $396 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Diego from Baltimore for as low as $355 on momondo.

There is only 1 cabin class available to choose from on Baltimore/Washington to San Diego flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

No. A direct flight is the cheapest option for a flight between Baltimore to San Diego.

As of March 2026, prices for Baltimore to San Diego flights are approximately 11% cheaper when compared to flights at the same time last year.

Southwest and United Airlines are the most popular carriers operating from Baltimore/Washington to San Diego

United Airlines, Southwest and Alaska Airlines are the top three most popular airlines that fly to San Diego from Baltimore according to our data. United Airlines is the first choice among our users, with 37% of people opting to fly with this airline when traveling to San Diego. Keep in mind that there are 8 different airlines that fly to San Diego on a routine basis, so you have a few additional options to choose from.

Seattle (SEA) was the most common stop: 60% of momondo users choosing 1-stop flights on this route connected there.

Flights via Las Vegas (LAS) offer the lowest average round-trip price of $285.

Flights connecting via Houston (IAH) have the shortest average one-way travel time: 7h 55m.

Houston (IAH) has the shortest average layover time for this route: 1h 13m.