$198 Cheap United flights San Francisco (SFO) to Baltimore (BWI)

Scoring cheap one-way United Airlines flights from SFO to BWI from $198 on Expedia is easy — just filter by “Price (lowest to highest).” Alternatively, check out our affordable return fares from $349 for your next getaway.**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.

Browse for one-way or round-trip flights to Baltimore in January or February. You could find a cheap fare with United Airlines during these off-peak times.

For cheap United Airlines fares from San Francisco Intl. Airport (SFO) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI), start searching one to three months before your planned 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 impact the cost. Sunday is typically the most affordable, while Monday is often the most expensive for domestic flights. You can save 6% on average by booking your flight 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.

Jet off on one of United Airlines’s 7 weekly direct flights from San Francisco Intl. Airport (SFO) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI). To see your choices, enter your destination, origin and dates and hit search. Then use the “Nonstop” and “Airline” filters.

From wheels-up to touchdown, a nonstop United Airlines flight from San Francisco Intl. Airport (SFO) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI) takes approximately 5h 15m.

The first flight from SFO to BWI with United Airlines leaves at 10:47PM UTC-8. You’ll land at 7:02AM UTC-5. The final United Airlines flight of the day takes off at 10:47PM UTC-8 and arrives at 7:02AM UTC-5. With approximately 20% fewer cancellations for morning and mid-morning flights, starting your travel day early is usually the smartest choice.**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.

United Airlines flights from San Francisco Intl. Airport (SFO) to Baltimore come in to Baltimore Washington Intl. Thurgood Marshall Airport (BWI), Ronald Reagan Washington National Airport (DCA) and Washington Dulles Intl. Airport (IAD). The main Baltimore hub served by this airline is BWI. It’s always worth looking into flights landing at other nearby airports on Expedia as they may offer cheaper prices.

Journey from SFO to BWI with United Airlines and you can look forward to a range of perks starting with a rewarding loyalty program. When you book through Expedia as a United Mileage Plus and One Key™ member, you may also earn OneKeyCash™* to use on select future travel purchases.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.

United Airlines typically flies Boeing 737 MAX 9 planes for flights from San Francisco Intl. Airport (SFO) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI). This airline also operates the Boeing 737-900 on this route. Bear in mind that aircraft type can change depending on operational reasons, so the plane you catch could be different on the day.

Changes are usually free within 24 hours of making your booking, but your airline may add a charge after that time. For more information about altering your flights, head to your “Trips,” select your flight and click on “Manage Booking.” If you’d like the flexibility to change your plans without being charged, check the “Changes included” and “No cancel fee” filters when planning your next break.