$161 Cheap Alaska Airlines flights Baltimore (BWI) to San Francisco (SFO)

View $161 flight on Tue, Sep 23, 2025Opens in a new window

$161 Cheap Alaska Airlines flights Baltimore (BWI) to San Francisco (SFO)

Prices were available within the past 7 days and start at $161 for one-way flights and $271 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Tue, Sep 23 - Fri, Sep 26
BWI
Baltimore
SFO
San Francisco
$271 Roundtrip, found 13 hours ago
$271
Roundtrip
found 13 hours ago
Select Alaska Airlines flight, departing Tue, Sep 23 from Baltimore to San Francisco, returning Fri, Sep 26, priced at $271 found 13 hours ago
Alaska Airlines
Wed, Sep 24 - Fri, Oct 3
BWI
Baltimore
SFO
San Francisco
$302 Roundtrip, just found
$302
Roundtrip
just found
Select Alaska Airlines flight, departing Wed, Sep 24 from Baltimore to San Francisco, returning Fri, Oct 3, priced at $302 just found
Alaska Airlines
Wed, Dec 10 - Tue, Dec 16
BWI
Baltimore
SFO
San Francisco
$402 Roundtrip, found 1 hour ago
$402
Roundtrip
found 1 hour ago
Select Alaska Airlines flight, departing Wed, Dec 10 from Baltimore to San Francisco, returning Tue, Dec 16, priced at $402 found 1 hour ago
Flights from Baltimore (BWI) to San Francisco (SFO)
Origin airport
Baltimore Washington Intl. Thurgood Marshall
Destination airport
San Francisco Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Frontier Airlines, Southwest Airlines, Sun Country Airlines, United
Popular airline
Southwest Airlines
Distance
2451 mi
Average flight time
3 hours 28 mins

Frequently asked questions

How much is an Alaska Airlines flight from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to San Francisco Intl. Airport (SFO)?
You'll discover budget-friendly return Alaska Airlines flights from $271 from BWI to SFO by sorting your results from "Price (lowest to highest)" on Expedia. Or look for bargains from $161 for a one-way trip.**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 SFO with Alaska Airlines?
Look for one-way or round-trip flights to San Francisco in February or April. You could find an affordable fare with Alaska Airlines during these off-peak travel months.
What is the cheapest time to book flights from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to San Francisco Intl. Airport (SFO) with Alaska Airlines?
Search for cheap Alaska Airlines flights from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to San Francisco Intl. Airport (SFO) one to three months ahead of your departure day. Travelers who book domestic flights 34 to 86 days in advance can save 25% compared to those who book just 6 to 12 days ahead. No matter the fare class and journey, the ideal day to book a domestic flight is usually Sunday and the most expensive tends to be Monday. Passengers who book on a Sunday can save 6% on average compared to those who book on a Monday.**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 Alaska Airlines fly nonstop from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to San Francisco Intl. Airport (SFO)?
Fill in your dates, hit search and select the "Nonstop" filter on Expedia to browse any direct flights from BWI to SFO with Alaska Airlines or another airline.
What is the earliest Alaska Airlines flight from BWI to SFO?
To find the earliest departure from BWI to SFO with Alaska Airlines, filter your results by "Early Morning" and "Morning." Booking an early flight usually means cancellations are less likely.**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 Alaska Airlines fly into in San Francisco?
Alaska Airlines flights from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to San Francisco arrive at San Francisco Intl. Airport (SFO). This is the main entry point here.
Why fly with Alaska Airlines from BWI to SFO?
Alaska Airlines makes flying from BWI to SFO more enjoyable with an excellent in-flight experience and a rewarding loyalty program. You could even start earning points with Mileage Plan. Be sure to join our free One Key™ rewards program to earn OneKeyCash™*, which can be redeemed on future travel.*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 Alaska Airlines flight from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to San Francisco Intl. Airport (SFO)?
You can usually cancel or modify your flight, although additional fees may apply if your booking was made over 24 hours ago. Prefer to keep your options open? Use our "No cancel fee" or "Changes included" filter to find flights that won't penalize you if you have to alter your plans. To modify your itinerary, go to "Trips," select your flight and click on "Manage Booking" for more information.

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*Available to One Key members.