$72 Cheap Flights from San Diego (SAN) to Baltimore (BWI)

View $72 flight on Mon, Dec 8, 2025Opens in a new window

Popular airlines from San Diego Intl. Airport (SAN) to Baltimore Washington Intl. Airport (BWI)

Cheap Flights from San Diego to Baltimore (SAN-BWI)

Prices were available within the past 7 days and start at $72 for one-way flights and $195 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Southwest Airlines
Tue, Jan 20 - Sat, Jan 24
SAN
San Diego
BWI
Baltimore
$195 Roundtrip, found 5 days ago
$195
Roundtrip
found 5 days ago
Select Southwest Airlines flight, departing Tue, Jan 20 from San Diego to Baltimore, returning Sat, Jan 24, priced at $195 found 5 days ago
Southwest Airlines
Wed, Dec 17 - Wed, Dec 24
SAN
San Diego
BWI
Baltimore
$198 Roundtrip, found 5 days ago
$198
Roundtrip
found 5 days ago
Select Southwest Airlines flight, departing Wed, Dec 17 from San Diego to Baltimore, returning Wed, Dec 24, priced at $198 found 5 days ago
Frontier Airlines
Thu, Nov 20 - Sat, Dec 6
SAN
San Diego
BWI
Baltimore
$204 Roundtrip, found 19 hours ago
$204
Roundtrip
found 19 hours ago
Select Frontier Airlines flight, departing Thu, Nov 20 from San Diego to Baltimore, returning Sat, Dec 6, priced at $204 found 19 hours ago
Southwest Airlines
Tue, Jan 20 - Sat, Jan 24
SAN
San Diego
BWI
Baltimore
$207 Roundtrip, found 5 days ago
$207
Roundtrip
found 5 days ago
Select Southwest Airlines flight, departing Tue, Jan 20 from San Diego to Baltimore, returning Sat, Jan 24, priced at $207 found 5 days ago
American Airlines
Wed, Jan 21 - Tue, Jan 27
SAN
San Diego
BWI
Baltimore
$208 Roundtrip, found 4 days ago
$208
Roundtrip
found 4 days ago
Select American Airlines flight, departing Wed, Jan 21 from San Diego to Baltimore, returning Tue, Jan 27, priced at $208 found 4 days ago
Southwest Airlines
Tue, Jan 20 - Sat, Jan 24
SAN
San Diego
BWI
Baltimore
$210 Roundtrip, found 5 days ago
$210
Roundtrip
found 5 days ago
Select Southwest Airlines flight, departing Tue, Jan 20 from San Diego to Baltimore, returning Sat, Jan 24, priced at $210 found 5 days ago
Southwest Airlines
Tue, Jan 20 - Sat, Jan 24
SAN
San Diego
BWI
Baltimore
$213 Roundtrip, found 5 days ago
$213
Roundtrip
found 5 days ago
Select Southwest Airlines flight, departing Tue, Jan 20 from San Diego to Baltimore, returning Sat, Jan 24, priced at $213 found 5 days ago
American Airlines
Tue, Jan 20 - Sat, Jan 24
SAN
San Diego
BWI
Baltimore
$213 Roundtrip, found 5 days ago
$213
Roundtrip
found 5 days ago
Select American Airlines flight, departing Tue, Jan 20 from San Diego to Baltimore, returning Sat, Jan 24, priced at $213 found 5 days ago
Delta
Wed, Jan 21 - Tue, Jan 27
SAN
San Diego
BWI
Baltimore
$220 Roundtrip, found 4 days ago
$220
Roundtrip
found 4 days ago
Select Delta flight, departing Wed, Jan 21 from San Diego to Baltimore, returning Tue, Jan 27, priced at $220 found 4 days ago
United
Tue, Dec 30 - Mon, Jan 12
SAN
San Diego
BWI
Baltimore
$275 Roundtrip, found 18 hours ago
$275
Roundtrip
found 18 hours ago
Select United flight, departing Tue, Dec 30 from San Diego to Baltimore, returning Mon, Jan 12, priced at $275 found 18 hours ago

Find the cheapest month to fly from San Diego (SAN) to Baltimore (BWI)

September is typically the cheapest month to fly

From $123 - $257 per traveler.

Alternative airports near Baltimore

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Ronald Reagan Washington National DCA. Cheapest option available. Average driving time to city center is 57 minutes. Flights from $216
DCA
Ronald Reagan Washington National
Cheapest
Average driving time to city center57 min
Flights from $216

Frequently asked questions

How much does a flight from San Diego Intl. Airport (SAN) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI) cost?
Get a cheap one-way flight from $72 or cheap return flight from $195 from San Diego Intl. Airport (SAN) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from San Diego Intl. Airport (SAN) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI)?
Flying in January may help you find better deals, as it's the cheapest month for flights between SAN and BWI. You'll typically find the lowest prices during the off-season.
Which airlines fly direct from San Diego Intl. Airport (SAN) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI)?
If you're departing from San Diego Intl. Airport (SAN), you can board a direct flight to Baltimore Washington Intl. Thurgood Marshall Airport (BWI) with Southwest Airlines.
What is the cheapest airline that flies from San Diego Intl. Airport (SAN) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI)?
Use the filters on Expedia to compare different airlines and find the most affordable carrier that'll take you from SAN to BWI. Then, sort your results by "Price (lowest to highest)" to snag the best deal available.
How many flights per day from San Diego Intl. Airport (SAN) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI)?
On average, San Diego Intl. Airport (SAN) only has 1 nonstop flight to Baltimore Washington Intl. Thurgood Marshall Airport (BWI) daily. For more options, try Expedia's easy-to-use filters. Simply enter your dates of travel, then choose "1 Stop" or "2+ Stops" to discover flights with layovers.
What are the most popular departure times for flights from San Diego Intl. Airport (SAN) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI)?
The 10 AM departures from SAN to BWI are the most sought after. Greater demand means you'll likely pay more for these departures. If you're looking to save, choose a less crowded time to fly.
What day of the week has the most flights from SAN to BWI?
Sunday offers the most flights from San Diego Intl. Airport (SAN) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI). Consider jetting off on this day and you'll have a greater chance of finding a departure that fits your itinerary.
What is the earliest flight from San Diego Intl. Airport (SAN) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI)?
Take the earliest flight at around 7:30AM UTC-8, leaving from San Diego Intl. Airport (SAN). You'll be flying for around 4h 45m, coming in to land at Baltimore Washington Intl. Thurgood Marshall Airport (BWI) at approximately 3:15PM UTC-5.
How long does it take to fly from San Diego Intl. Airport (SAN) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI)?
The average flight time from SAN to BWI is 4 hours and 46 minutes, covering a total distance of 2,300 mi.
What airline has the least delays from SAN to BWI?
Alaska Airlines has the strongest track record for on-time direct flights from San Diego Intl. Airport (SAN) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI), with an on-time rating of 88%. Use the Expedia App to see your journey status before you leave and get notified of any changes.
What is the best time to fly from San Diego Intl. Airport (SAN) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI)?
Opt for a flight from San Diego Intl. Airport (SAN) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI) that takes off before 3 PM to reduce the risk of delays and cancellations. Departures after this hour are on average 22% more likely to be canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports do you fly into for Baltimore from San Diego Intl. Airport (SAN)?
If you're leaving on a direct flight from San Diego Intl. Airport (SAN) to Baltimore, you'll land at either Washington Dulles Intl. Airport (IAD) or Baltimore Washington Intl. Thurgood Marshall Airport (BWI).
Is it cheaper to buy a plane ticket from San Diego Intl. Airport (SAN) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI) last-minute?
Holding off until right before your break to book a flight from SAN to BWI often results in higher prices. Although you may find some last-minute deals, they aren't always guaranteed. Keep your travel schedule open for a better chance of landing a bargain.
Is it cheaper to book a SAN to BWI flight and hotel package?
You'll typically save money by booking a SAN to BWI flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it's simple to manage it all in one convenient place. Once you've selected your preferred accommodations and flights, you can add extras like car rentals, tours and activities.
Can I cancel or change the date of my flight from San Diego Intl. Airport (SAN) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI)?
Generally, it's possible to cancel or reschedule your SAN to BWI flight. However, if it's been more than 24 hours since booking, additional charges may apply. Check your airline's policies in your itinerary to see what changes are allowed and if any costs are involved. You'll also find further details on our Customer Service portal.

Travel information

Origin airport
San Diego Intl.
Destination airport
Baltimore Washington Intl. Thurgood Marshall
Airlines serving
Alaska Airlines, American Airlines, Delta, Frontier Airlines, Southwest Airlines, Sun Country Airlines, United
Roundtrip price
$194
Distance
2290 mi
Average flight time
8 hours 1 min

Book with confidence

San Diego to Baltimore Flights

The cheapest times to fly from San Diego to Baltimore

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from San Diego to Baltimore are during the month of January. You can find some of the cheapest flights from San Diego to Baltimore with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from San Diego to Baltimore

Sunday is one of the best days to book for cheap flights from San Diego to Baltimore: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from San Diego to Baltimore

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from San Diego to Baltimore in 2025. You can also book with separate airlines for your outbound and return journeys, from $72 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap San Diego to Baltimore flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your San Diego to Baltimore airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

San Diego to Baltimore Flights

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*Available to One Key members.