$57 Cheap Spirit Airlines flights Baltimore (BWI) to San Diego (SAN)

View $57 flight on Sat, Sep 13, 2025Opens in a new window

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$57 Cheap Spirit Airlines flights Baltimore (BWI) to San Diego (SAN)

Prices were available within the past 7 days and start at $57 for one-way flights and $113 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Spirit Airlines
Sat, Sep 6 - Tue, Sep 9
BWI
Baltimore
SAN
San Diego
$113 Roundtrip, just found
$113
Roundtrip
just found
Select Spirit Airlines flight, departing Sat, Sep 6 from Baltimore to San Diego, returning Tue, Sep 9, priced at $113 just found
Spirit Airlines
Wed, Sep 10 - Tue, Sep 16
BWI
Baltimore
SAN
San Diego
$115 Roundtrip, found 8 hours ago
$115
Roundtrip
found 8 hours ago
Select Spirit Airlines flight, departing Wed, Sep 10 from Baltimore to San Diego, returning Tue, Sep 16, priced at $115 found 8 hours ago
Spirit Airlines
Tue, Sep 9 - Tue, Sep 16
BWI
Baltimore
SAN
San Diego
$118 Roundtrip, found 3 hours ago
$118
Roundtrip
found 3 hours ago
Select Spirit Airlines flight, departing Tue, Sep 9 from Baltimore to San Diego, returning Tue, Sep 16, priced at $118 found 3 hours ago
Spirit Airlines
Tue, Sep 9 - Tue, Sep 16
BWI
Baltimore
SAN
San Diego
$132 Roundtrip, found 3 hours ago
$132
Roundtrip
found 3 hours ago
Select Spirit Airlines flight, departing Tue, Sep 9 from Baltimore to San Diego, returning Tue, Sep 16, priced at $132 found 3 hours ago
Spirit Airlines
Wed, Sep 17 - Mon, Sep 29
BWI
Baltimore
SAN
San Diego
$141 Roundtrip, found 1 day ago
$141
Roundtrip
found 1 day ago
Select Spirit Airlines flight, departing Wed, Sep 17 from Baltimore to San Diego, returning Mon, Sep 29, priced at $141 found 1 day ago
Spirit Airlines
Thu, Sep 4 - Tue, Sep 9
BWI
Baltimore
SAN
San Diego
$145 Roundtrip, found 1 hour ago
$145
Roundtrip
found 1 hour ago
Select Spirit Airlines flight, departing Thu, Sep 4 from Baltimore to San Diego, returning Tue, Sep 9, priced at $145 found 1 hour ago
Flights from Baltimore (BWI) to San Diego (SAN)
Origin airport
Baltimore Washington Intl. Thurgood Marshall
Destination airport
San Diego Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Frontier Airlines, Southwest Airlines, Spirit Airlines, Sun Country Airlines, United
Popular airline
Spirit Airlines
Distance
2290 mi
Average flight time
3 hours 41 mins

Frequently asked questions

How much is a Spirit Airlines flight from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to San Diego Intl. Airport (SAN)?
Finding cheap one-way Spirit Airlines flights from BWI to SAN from $57 on Expedia is a cinch — just filter by "Price (lowest to highest)." Or check out our budget-friendly round-trip fares from $113 for your next exciting vacation.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
What is the cheapest month to fly from BWI to SAN with Spirit Airlines?
Look for one-way or round-trip flights to San Diego in January or November. You could find cheaper fares with Spirit Airlines during these quieter months.
What is the cheapest time to book flights from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to San Diego Intl. Airport (SAN) with Spirit Airlines?
For cheap Spirit Airlines fares from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to San Diego Intl. Airport (SAN), start searching one to three months before your intended departure. Reserving domestic flights 34 to 86 days in advance could save you 25% compared to booking just 6 to 12 days ahead. The day you book can also affect how much you pay. Sunday is usually the most affordable, while Monday is often the most expensive for domestic flights. You can save 6% on average by booking your trip on a Sunday.**Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC's global airline sales database.
Does Spirit Airlines fly nonstop from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to San Diego Intl. Airport (SAN)?
Simply enter your dates, hit search and check the "Nonstop" filter on Expedia to browse any direct flights from BWI to SAN with Spirit Airlines or other carriers.
What is the earliest Spirit Airlines flight from BWI to SAN?
Browse Spirit Airlines's earliest flights from BWI to SAN by selecting our "Morning" and "Early Morning" filters. Not only will you arrive at your destination sooner, early departures also experience 20% fewer cancellations.**Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports does Spirit Airlines fly into in San Diego?
Jump on a Spirit Airlines flight from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to San Diego, and you'll probably land at San Diego Intl. Airport (SAN). This is the airline's main hub here.
Why fly with Spirit Airlines from BWI to SAN?
Travel from BWI to SAN with Spirit Airlines and you can look forward to a range of benefits including a rewarding loyalty program. When booking through Expedia as a Free Spirit and One Key™ member, you could also earn OneKeyCash™* to spend on select future travel purchases.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.
Can I change or cancel my Spirit Airlines flight from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to San Diego Intl. Airport (SAN)?
Depending on the ticket type you purchased, a fee typically applies if you cancel or change your booking more than 24 hours after confirmation. To find tickets with more flexibility, select our "No cancel fee" or "Changes included" filter when you search for flights. For more information on changing or canceling your reservation, head to "Trips," select your flight and click on "Manage Booking."

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*Available to One Key members.