Cheap flights from San Diego to Washington, D.C. from $80

If you’re not able to fly to Baltimore in August, then October is your next best option. Flight prices from San Diego to Baltimore during October average around $357.

The cheapest day to depart from San Diego to Baltimore is on a Wednesday. Travelers who choose to depart for Baltimore on a Wednesday will often find tickets for as low as $391. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around $486. These prices are subject to change though, so be sure to set up a Price Alert for flights to Baltimore.

Flying to Baltimore from San Diego in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $365 when looking at flights departing in the afternoon. Flights at noon are often more expensive with an average ticket price of $509.

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

You are more likely to see cheaper flights to Baltimore from San Diego when booking weeks ahead of your departure date. In general, you can expect to find flights to Baltimore for around $400 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Baltimore from San Diego for as low as $237 on momondo.

There is only 1 cabin class available to choose from on San Diego to Baltimore/Washington 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 6% on your flight if you consider stops on a San Diego to Baltimore flight.

As of March 2026, prices for San Diego to Baltimore flights are approximately 19% cheaper when compared to flights at the same time last year.

Frontier is the most popular carrier operating from San Diego to Baltimore/Washington

United Airlines, Southwest and Alaska Airlines are the top three most popular airlines that fly to Baltimore from San Diego according to our data. United Airlines is the first choice among our users, with 31% of people opting to fly with this airline when traveling to Baltimore. Keep in mind that there are 9 different airlines that fly to Baltimore on a routine basis, so you have a few additional options to choose from.

Denver (DEN) was the most common stop: 38% 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 $319.

Flights connecting via Phoenix (PHX) have the shortest average one-way travel time: 6h 50m.

Detroit (DTW) has the shortest average layover time for this route: 1h 03m.

3 flights are operational daily from San Diego to Baltimore as of March 2026. The most popular departure time for this route is 6:00AM, with 52% of flights per day taking off at noon.

The number of flights available between San Diego and Baltimore is 25 per week as of March 2026. The most frequent departure day is Mon, with 20% of weekly flights leaving on this day.