$76 Cheap Flights from Baltimore (BWI) to San Francisco (SFO)

View $76 flight on Thu, Nov 13, 2025Opens in a new window

Popular airlines from Baltimore Washington Intl. Airport (BWI) to San Francisco Intl. Airport (SFO)

Cheap Flights from Baltimore to San Francisco (BWI-SFO)

Prices were available within the past 7 days and start at $76 for one-way flights and $180 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Thu, Dec 4 - Sat, Dec 6
BWI
Baltimore
SFO
San Francisco
$180 Roundtrip, found 9 hours ago
$180
Roundtrip
found 9 hours ago
Select Frontier Airlines flight, departing Thu, Dec 4 from Baltimore to San Francisco, returning Sat, Dec 6, priced at $180 found 9 hours ago
Frontier Airlines
Mon, Dec 8 - Sat, Dec 13
BWI
Baltimore
SFO
San Francisco
$206 Roundtrip, found 3 hours ago
$206
Roundtrip
found 3 hours ago
Select Frontier Airlines flight, departing Mon, Dec 8 from Baltimore to San Francisco, returning Sat, Dec 13, priced at $206 found 3 hours ago
Frontier Airlines
Thu, Nov 13 - Wed, Nov 19
BWI
Baltimore
SFO
San Francisco
$228 Roundtrip, just found
$228
Roundtrip
just found
Select Frontier Airlines flight, departing Thu, Nov 13 from Baltimore to San Francisco, returning Wed, Nov 19, priced at $228 just found
Frontier Airlines
Thu, Dec 11 - Tue, Dec 16
BWI
Baltimore
SFO
San Francisco
$232 Roundtrip, found 3 hours ago
$232
Roundtrip
found 3 hours ago
Select Frontier Airlines flight, departing Thu, Dec 11 from Baltimore to San Francisco, returning Tue, Dec 16, priced at $232 found 3 hours ago
Delta
Fri, Dec 12 - Tue, Jan 6
BWI
Baltimore
SFO
San Francisco
$234 Roundtrip, found 6 days ago
$234
Roundtrip
found 6 days ago
Select Delta flight, departing Fri, Dec 12 from Baltimore to San Francisco, returning Tue, Jan 6, priced at $234 found 6 days ago
Frontier Airlines
Thu, Dec 11 - Wed, Dec 17
BWI
Baltimore
SFO
San Francisco
$237 Roundtrip, just found
$237
Roundtrip
just found
Select Frontier Airlines flight, departing Thu, Dec 11 from Baltimore to San Francisco, returning Wed, Dec 17, priced at $237 just found
Frontier Airlines
Mon, Dec 8 - Sun, Dec 14
BWI
Baltimore
SFO
San Francisco
$242 Roundtrip, just found
$242
Roundtrip
just found
Select Frontier Airlines flight, departing Mon, Dec 8 from Baltimore to San Francisco, returning Sun, Dec 14, priced at $242 just found
Alaska Airlines
Tue, Dec 9 - Sat, Dec 13
BWI
Baltimore
SFO
San Francisco
$280 Roundtrip, found 5 hours ago
$280
Roundtrip
found 5 hours ago
Select Alaska Airlines flight, departing Tue, Dec 9 from Baltimore to San Francisco, returning Sat, Dec 13, priced at $280 found 5 hours ago
Southwest Airlines
Tue, Jan 27 - Mon, Feb 2
BWI
Baltimore
SFO
San Francisco
$303 Roundtrip, just found
$303
Roundtrip
just found
Select Southwest Airlines flight, departing Tue, Jan 27 from Baltimore to San Francisco, returning Mon, Feb 2, priced at $303 just found
American Airlines
Mon, Feb 2 - Tue, Feb 3
BWI
Baltimore
SFO
San Francisco
$323 Roundtrip, found 10 hours ago
$323
Roundtrip
found 10 hours ago
Select American Airlines flight, departing Mon, Feb 2 from Baltimore to San Francisco, returning Tue, Feb 3, priced at $323 found 10 hours ago

Find the cheapest month to fly from Baltimore (BWI) to San Francisco (SFO)

April is typically the cheapest month to fly

From $140 - $506 per traveler.

Alternative airports near San Francisco

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

Select flight to Norman Y. Mineta San Jose Intl. SJC. Average driving time to city center is 50 minutes. Flights from $613
SJC
Norman Y. Mineta San Jose Intl.
Average driving time to city center50 min
Flights from $613
Select flight to Oakland Intl. OAK. Average driving time to city center is 26 minutes. Flights from $510
OAK
Oakland Intl.
Average driving time to city center26 min
Flights from $510

Frequently asked questions

How much does a flight from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to San Francisco Intl. Airport (SFO) cost?
Lock in a cheap one-way flight from $76 or cheap return flight from $180 from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to San Francisco Intl. Airport (SFO) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to San Francisco Intl. Airport (SFO)?
The cheapest month to fly from BWI to SFO is December, when demand is low. Off-peak months are typically when airlines offer lower prices between these airports.
Which airlines fly direct from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to San Francisco Intl. Airport (SFO)?
When departing from Baltimore Washington Intl. Thurgood Marshall Airport (BWI), you can take a nonstop flight to San Francisco Intl. Airport (SFO) with United Airlines.
What is the cheapest airline that flies from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to San Francisco Intl. Airport (SFO)?
While prices can vary depending on your travel dates, budget airlines like ANA and Virgin Australia are often the cheapest options for flights between Baltimore Washington Intl. Thurgood Marshall Airport (BWI) and San Francisco Intl. Airport (SFO). Use Expedia's search tool to compare carriers and find the one that offers the best deal for your BWI to SFO flight.
How many flights per day from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to San Francisco Intl. Airport (SFO)?
On average, you'll only find 1 nonstop flight departing from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to San Francisco Intl. Airport (SFO) per day. If this doesn't work for you, check out flights with a layover. Just filter your search on Expedia to include one stop or more to find the next best option.
What are the most popular departure times for flights from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to San Francisco Intl. Airport (SFO)?
The 6 AM departures from BWI to SFO are typically the busiest. These flights can come with a higher price due to their popularity. If you're hoping to save money, choose a less crowded time to fly.
What day of the week has the most flights from BWI to SFO?
Friday has the most flights from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to San Francisco Intl. Airport (SFO). Consider traveling on this day and you'll have a greater chance of finding a departure that fits your plans.
What is the earliest flight from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to San Francisco Intl. Airport (SFO)?
Hop on the earliest flight at around 6:05AM UTC-5, leaving from Baltimore Washington Intl. Thurgood Marshall Airport (BWI). You'll be traveling for about 6h 24m, coming in to land at San Francisco Intl. Airport (SFO) at approximately 9:29AM UTC-8.
How long does it take to fly from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to San Francisco Intl. Airport (SFO)?
The average flight duration from BWI to SFO is 6 hours and 24 minutes, covering a distance of 2,500 mi.
What airline has the least delays from BWI to SFO?
United Airlines has the best track record for on-time direct flights from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to San Francisco Intl. Airport (SFO), with an on-time rating of 82%. Use the Expedia App to check your journey status before you leave and get real-time alerts about any trip changes.
What is the best time to fly from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to San Francisco Intl. Airport (SFO)?
Select a flight from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to San Francisco Intl. Airport (SFO) that leaves before 3 PM to reduce the risk of 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 San Francisco from Baltimore Washington Intl. Thurgood Marshall Airport (BWI)?
If you're on a direct flight from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to San Francisco, San Francisco Intl. Airport (SFO) is the only airport you can land at.
Is it cheaper to buy a plane ticket from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to San Francisco Intl. Airport (SFO) last-minute?
Last-minute bookings from BWI to SFO are typically more expensive. To secure the cheapest rates, start searching for flights ahead of time. That being said, if you can play around with your travel dates, you may land a cheap fare just before your departure.
Is it cheaper to book a BWI to SFO flight and hotel package?
Securing a BWI to SFO flight and hotel package is generally cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your trip all in one place. Pick from our impressive range of accommodations and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to San Francisco Intl. Airport (SFO)?
If you reserved your BWI to SFO flight in the last 24 hours, you may be able to modify or cancel it at no cost. Depending on the airline and the type of fare you have, additional charges may apply for changes after that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal for further details.

Travel information

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
Roundtrip price
$180
Distance
2451 mi
Average flight time
3 hours 5 mins

Book with confidence

Baltimore to San Francisco Flights

The cheapest times to fly from Baltimore to San Francisco

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 Baltimore to San Francisco are during the month of December. You can find some of the cheapest flights from Baltimore to San Francisco with Expedia's search tool and vast selection of airlines.

 

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

Sunday is one of the best days to book for cheap flights from Baltimore to San Francisco: 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 Baltimore to San Francisco

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 Baltimore to San Francisco in 2025. You can also book with separate airlines for your outbound and return journeys, from $76 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 Baltimore to San Francisco 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 Baltimore to San Francisco 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.

 

Baltimore to San Francisco Flights

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*Available to One Key members.