$65 Cheap Flights from San Diego (SAN) to Baltimore (BWI)

View $65 flight on Wed, Sep 17, 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 $65 for one-way flights and $163 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Spirit Airlines
Wed, Sep 17 - Tue, Sep 23
SAN
San Diego
BWI
Baltimore
$163 Roundtrip, just found
$163
Roundtrip
just found
Select Spirit Airlines flight, departing Wed, Sep 17 from San Diego to Baltimore, returning Tue, Sep 23, priced at $163 just found
Spirit Airlines
Wed, Sep 17 - Wed, Oct 1
SAN
San Diego
BWI
Baltimore
$164 Roundtrip, found 7 hours ago
$164
Roundtrip
found 7 hours ago
Select Spirit Airlines flight, departing Wed, Sep 17 from San Diego to Baltimore, returning Wed, Oct 1, priced at $164 found 7 hours ago
Spirit Airlines
Wed, Sep 17 - Tue, Sep 30
SAN
San Diego
BWI
Baltimore
$166 Roundtrip, found 6 hours ago
$166
Roundtrip
found 6 hours ago
Select Spirit Airlines flight, departing Wed, Sep 17 from San Diego to Baltimore, returning Tue, Sep 30, priced at $166 found 6 hours ago
Spirit Airlines
Wed, Sep 17 - Sun, Sep 28
SAN
San Diego
BWI
Baltimore
$174 Roundtrip, found 9 hours ago
$174
Roundtrip
found 9 hours ago
Select Spirit Airlines flight, departing Wed, Sep 17 from San Diego to Baltimore, returning Sun, Sep 28, priced at $174 found 9 hours ago
Spirit Airlines
Wed, Sep 17 - Sun, Oct 5
SAN
San Diego
BWI
Baltimore
$177 Roundtrip, found 6 days ago
$177
Roundtrip
found 6 days ago
Select Spirit Airlines flight, departing Wed, Sep 17 from San Diego to Baltimore, returning Sun, Oct 5, priced at $177 found 6 days ago
Spirit Airlines
Wed, Sep 17 - Fri, Sep 26
SAN
San Diego
BWI
Baltimore
$178 Roundtrip, found 1 day ago
$178
Roundtrip
found 1 day ago
Select Spirit Airlines flight, departing Wed, Sep 17 from San Diego to Baltimore, returning Fri, Sep 26, priced at $178 found 1 day ago
Southwest Airlines
Wed, Dec 3 - Sat, Dec 6
SAN
San Diego
BWI
Baltimore
$272 Roundtrip, found 13 hours ago
$272
Roundtrip
found 13 hours ago
Select Southwest Airlines flight, departing Wed, Dec 3 from San Diego to Baltimore, returning Sat, Dec 6, priced at $272 found 13 hours ago
United
Sat, Oct 25 - Wed, Oct 29
SAN
San Diego
BWI
Baltimore
$272 Roundtrip, found 17 hours ago
$272
Roundtrip
found 17 hours ago
Select United flight, departing Sat, Oct 25 from San Diego to Baltimore, returning Wed, Oct 29, priced at $272 found 17 hours ago
American Airlines
Wed, Sep 24 - Sat, Sep 27
SAN
San Diego
BWI
Baltimore
$277 Roundtrip, found 5 hours ago
$277
Roundtrip
found 5 hours ago
Select American Airlines flight, departing Wed, Sep 24 from San Diego to Baltimore, returning Sat, Sep 27, priced at $277 found 5 hours ago
Delta
Wed, Sep 17 - Tue, Sep 23
SAN
San Diego
BWI
Baltimore
$277 Roundtrip, just found
$277
Roundtrip
just found
Select Delta flight, departing Wed, Sep 17 from San Diego to Baltimore, returning Tue, Sep 23, priced at $277 just found

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

September is typically the cheapest month to fly

From $120 - $309 per traveler.

Graph displaying average flight prices per month

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 $257
DCA
Ronald Reagan Washington National
Cheapest
Average driving time to city center57 min
Flights from $257
Flights from San Diego (SAN) to Baltimore (BWI)
Origin airport
San Diego Intl.
Destination airport
Baltimore Washington Intl. Thurgood Marshall
Airlines serving
Alaska Airlines, American Airlines, Delta, Frontier Airlines, Southwest Airlines, Spirit Airlines, Sun Country Airlines, United
Roundtrip price
$163
Distance
2290 mi
Average flight time
8 hours 57 mins

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 September. 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 $65 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.

 

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 $65 or cheap return flight from $163 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 September 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.

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*Available to One Key members.