$133 Cheap Flights from San Francisco (SFO) to Baltimore (BWI)

View $133 flight on Tue, Nov 4, 2025Opens in a new window

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

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

Prices were available within the past 7 days and start at $133 for one-way flights and $268 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Tue, Aug 12 - Wed, Aug 13
SFO
San Francisco
BWI
Baltimore
$268 Roundtrip, found 1 hour ago
$268
Roundtrip
found 1 hour ago
Select Frontier Airlines flight, departing Tue, Aug 12 from San Francisco to Baltimore, returning Wed, Aug 13, priced at $268 found 1 hour ago
Southwest Airlines
Tue, Nov 4 - Tue, Nov 11
SFO
San Francisco
BWI
Baltimore
$286 Roundtrip, found 7 hours ago
$286
Roundtrip
found 7 hours ago
Select Southwest Airlines flight, departing Tue, Nov 4 from San Francisco to Baltimore, returning Tue, Nov 11, priced at $286 found 7 hours ago
Frontier Airlines
Sat, Aug 16 - Sun, Aug 17
SFO
San Francisco
BWI
Baltimore
$288 Roundtrip, just found
$288
Roundtrip
just found
Select Frontier Airlines flight, departing Sat, Aug 16 from San Francisco to Baltimore, returning Sun, Aug 17, priced at $288 just found
Southwest Airlines
Tue, Nov 4 - Tue, Nov 11
SFO
San Francisco
BWI
Baltimore
$292 Roundtrip, found 7 hours ago
$292
Roundtrip
found 7 hours ago
Select Southwest Airlines flight, departing Tue, Nov 4 from San Francisco to Baltimore, returning Tue, Nov 11, priced at $292 found 7 hours ago
Frontier Airlines
Sat, Oct 25 - Tue, Nov 4
SFO
San Francisco
BWI
Baltimore
$293 Roundtrip, found 6 hours ago
$293
Roundtrip
found 6 hours ago
Select Frontier Airlines flight, departing Sat, Oct 25 from San Francisco to Baltimore, returning Tue, Nov 4, priced at $293 found 6 hours ago
Frontier Airlines
Sat, Sep 27 - Tue, Oct 7
SFO
San Francisco
BWI
Baltimore
$295 Roundtrip, found 6 hours ago
$295
Roundtrip
found 6 hours ago
Select Frontier Airlines flight, departing Sat, Sep 27 from San Francisco to Baltimore, returning Tue, Oct 7, priced at $295 found 6 hours ago
Frontier Airlines
Wed, Aug 13 - Sat, Aug 23
SFO
San Francisco
BWI
Baltimore
$295 Roundtrip, found 6 hours ago
$295
Roundtrip
found 6 hours ago
Select Frontier Airlines flight, departing Wed, Aug 13 from San Francisco to Baltimore, returning Sat, Aug 23, priced at $295 found 6 hours ago
Delta
Sat, Oct 11 - Mon, Oct 13
SFO
San Francisco
BWI
Baltimore
$316 Roundtrip, found 2 hours ago
$316
Roundtrip
found 2 hours ago
Select Delta flight, departing Sat, Oct 11 from San Francisco to Baltimore, returning Mon, Oct 13, priced at $316 found 2 hours ago
United
Tue, Oct 21 - Wed, Oct 22
SFO
San Francisco
BWI
Baltimore
$317 Roundtrip, found 1 hour ago
$317
Roundtrip
found 1 hour ago
Select United flight, departing Tue, Oct 21 from San Francisco to Baltimore, returning Wed, Oct 22, priced at $317 found 1 hour ago
Alaska Airlines
Tue, Oct 21 - Wed, Oct 22
SFO
San Francisco
BWI
Baltimore
$331 Roundtrip, found 1 hour ago
$331
Roundtrip
found 1 hour ago
Select Alaska Airlines flight, departing Tue, Oct 21 from San Francisco to Baltimore, returning Wed, Oct 22, priced at $331 found 1 hour ago

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

November is typically the cheapest month to fly

From $138 - $541 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. Average driving time to city center is 57 minutes. Flights from $328
DCA
Ronald Reagan Washington National
Average driving time to city center57 min
Flights from $328
Flights from San Francisco (SFO) to Baltimore (BWI)
Origin airport
San Francisco Intl.
Destination airport
Baltimore Washington Intl. Thurgood Marshall
Airlines serving
Alaska Airlines, American Airlines, Delta, Frontier Airlines, Southwest Airlines, Sun Country Airlines, United
Roundtrip price
$262
Distance
2451 mi
Average flight time
8 hours 13 mins

San Francisco to Baltimore Flights

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

 

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

Sunday is one of the best days to book for cheap flights from San Francisco 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 Francisco 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 Francisco to Baltimore in 2025. You can also book with separate airlines for your outbound and return journeys, from $133 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 Francisco 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 Francisco 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 Francisco Intl. Airport (SFO) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI) cost?
Find cheap return fares from San Francisco Intl. Airport (SFO) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI) starting from $297. Reserve your seat and be on your way. This information is based on the cheapest price found on Expedia for this return journey departing within the next three months. This airfare is for a United flight leaving SFO on August 16 2025 and touching down at BWI. The price was last updated on July 23 2025 and has not changed since.
What is the cheapest month to fly from SFO to BWI?
The cheapest flights from SFO to BWI are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
Which airlines fly direct from San Francisco Intl. Airport (SFO) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI)?
When flying out of San Francisco Intl. Airport (SFO), you can jump on a direct flight to Baltimore Washington Intl. Thurgood Marshall Airport (BWI) with United Airlines.
What is the cheapest airline that flies from SFO to BWI?
Fly from SFO to BWI with Southwest Airlines. This carrier currently has the cheapest one-way ticket on this route, starting from $169. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from SFO on October 11 2025. Prices were last updated on July 23 2025 and have not changed since.
How many flights per day from San Francisco Intl. Airport (SFO) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI)?
On average, just 1 direct flight departs each day from San Francisco Intl. Airport (SFO) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI). Need other options? Use Expedia's filters to find flights with layovers and add an extra destination to your journey.
What are the most popular departure times for flights from San Francisco Intl. Airport (SFO) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI)?
The 10 PM departures from SFO to BWI see the highest demand. These flights can come with a higher price due to their popularity. If you want to save money, choose a less crowded time to fly.
What day of the week has the most flights from SFO to BWI?
Saturday offers the most flights from San Francisco Intl. Airport (SFO) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI). Consider taking off on this day and you'll have the best chance of finding a departure that fits your schedule.
What is the earliest flight from San Francisco Intl. Airport (SFO) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI)?
San Francisco Intl. Airport (SFO)'s first flight to Baltimore Washington Intl. Thurgood Marshall Airport (BWI) departs at approximately 10:47PM UTC-8. With a flight time of 5h 15m, you'll touch down at around 7:02AM UTC-5.
How long does it take to fly from San Francisco Intl. Airport (SFO) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI)?
The average flight time from SFO to BWI is 5 hours and 15 minutes, covering a distance of 2,500 mi.
What airline has the least delays from SFO to BWI?
United Airlines has the best performance for on-time direct flights from San Francisco Intl. Airport (SFO) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI), with an on-time rating of 80%. Use the Expedia App to look up your flight schedule before you jet off and receive notifications about any trip changes.
What is the best time to fly from San Francisco Intl. Airport (SFO) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI)?
To avoid possible delays on the San Francisco Intl. Airport (SFO) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI) route, travel before 3 PM. Departures after this hour have a 22% higher chance of being 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 Francisco Intl. Airport (SFO)?
Board a direct flight from San Francisco Intl. Airport (SFO) to Baltimore and you'll land at one of these hubs:

  • Ronald Reagan Washington National Airport (DCA)
  • Washington Dulles Intl. Airport (IAD)
  • Baltimore Washington Intl. Thurgood Marshall Airport (BWI)

Is it cheaper to buy a plane ticket from San Francisco Intl. Airport (SFO) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI) last-minute?
Last-minute bookings from SFO to BWI are typically more expensive. To lock in the lowest rates, start looking for flights as early as possible. That being said, if you can play around with your travel dates, you may land a cheap ticket just before your departure.
Is it cheaper to book a SFO to BWI flight and hotel package?
Compared with arranging flights and hotels separately, booking a SFO to BWI flight and hotel package with Expedia could lead to significant savings. What's more, having everything in one easy place will take the stress out of planning your trip. Just pick your flights and select from our wide range of hotels, then tailor your trip with other add-ons like tours and car rentals.
Can I cancel or change the date of my flight from San Francisco Intl. Airport (SFO) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI)?
If you reserved your SFO to BWI 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, visit our Customer Service portal for further details.

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