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$170+ Cheap flights from Baltimore to San Francisco (BWI - SFO)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/9. Fares are subject to change and may not be available on all flights or dates of travel.
BWI — SFO
Dec 6 — Dec 131
Sat 12/6
Sat 12/13
1 adult, Economy
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Find cheap flights from Baltimore to San Francisco with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

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3. Compare prices and book

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Cheapflights Tip: The best prices from Baltimore/Washington to San Francisco are usually found in February or May, booked 31 days in advance, depart on a Thursday or Friday and return on a Tuesday

Cheap flight deals from Baltimore to San Francisco

Discover tips and strategies to find the most affordable flight options for your journey from Baltimore (BWI) to San Francisco (SFO). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated November 6, 2025.

Most accurate provider

Justfly.com
3 stars

Most trusted provider

Justfly.com
3 stars

Round-trip from

$244
(Kiwi.com)

One-way from

$170
(Cheapflightsfares)

Popular in

November

Cheapest in

February

Average price

$503
Provider with most accurate pricing for Baltimore/Washington-San Francisco flight deals.
Search Deals
Provider most trusted by Cheapflights users for Baltimore/Washington-San Francisco flights.
Search Deals
From Baltimore/Washington to San Francisco
Search Deals
One-way flight from Baltimore/Washington to San Francisco
Search Deals
Highest demand for flights based on searches. 8% potential increase in price ($43 potential increase over avg. RT price).
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Cheapest flight prices on average. 0% potential price decrease ($5 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
Search Deals

Find flight deals from Baltimore to San Francisco

Cheapest flights from Baltimore to San Francisco
Explore the most affordable flight options available from Baltimore to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 6, 2025.

This Kiwi.com deal was found by Cheapflights users on 11/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/225:30 amBWI - SFO
1 stop10h 43mFrontier
Fri 1/98:44 amSFO - BWI
1 stop9h 21mFrontier
Deal found 11/6$244
This Kiwi.com deal was found by Cheapflights users on 11/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/27:30 amBWI - SFO
2 stops36h 21mMultiple Airlines
Thu 12/411:33 pmSFO - BWI
1 stop8h 22mMultiple Airlines
Deal found 11/6$245
This Kiwi.com deal was found by Cheapflights users on 11/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/17:10 amBWI - SFO
2 stops36h 41mFrontier
Sat 12/611:33 pmSFO - BWI
1 stop8h 32mFrontier
Deal found 11/6$246
This Kiwi.com deal was found by Cheapflights users on 11/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/311:16 amBWI - SFO
2 stops23h 37mFrontier
Thu 12/411:33 pmSFO - BWI
1 stop8h 22mFrontier
Deal found 11/6$248
This Kiwi.com deal was found by Cheapflights users on 11/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/55:45 amBWI - SFO
1 stop10h 33mFrontier
Tue 12/236:00 amSFO - BWI
2 stops39h 29mFrontier
Deal found 11/5$249
This Kiwi.com deal was found by Cheapflights users on 11/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/45:45 amBWI - SFO
1 stop10h 33mFrontier
Sun 12/216:00 amSFO - BWI
2 stops35h 35mFrontier
Deal found 11/5$250
This Kiwi.com deal was found by Cheapflights users on 11/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/55:45 amBWI - SFO
1 stop10h 33mMultiple Airlines
Tue 12/96:20 pmSFO - BWI
1 stop8h 20mMultiple Airlines
Deal found 11/5$251
This Expedia deal was found by Cheapflights users on 11/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/107:00 amBWI - SFO
1 stop14h 03mMultiple Airlines
Sun 1/118:44 amSFO - BWI
1 stop9h 21mMultiple Airlines
Deal found 11/6$255
This Kiwi.com deal was found by Cheapflights users on 11/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/35:45 amBWI - SFO
1 stop14h 06mMultiple Airlines
Sun 12/711:33 pmSFO - BWI
1 stop8h 22mMultiple Airlines
Deal found 11/5$256
This Kiwi.com deal was found by Cheapflights users on 11/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/18:45 pmBWI - SFO
2 stops23h 06mFrontier
Sun 12/711:33 pmSFO - BWI
1 stop8h 22mFrontier
Deal found 11/6$258
This Kiwi.com deal was found by Cheapflights users on 11/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/55:45 amBWI - SFO
1 stop10h 33mMultiple Airlines
Thu 12/256:00 amSFO - BWI
2 stops32h 12mMultiple Airlines
Deal found 11/5$259

Cheapflights Fare Finder

 
Customize your flight search to find flights from Baltimore to San Francisco that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated November 6, 2025.
Use the filters below to find and compare flights from Baltimore to San Francisco that are best for you.

Fly from

Baltimore

Fly to

San Francisco

Route

Depart

Return

Price

BaltimoreSan Francisco

BWI - SFO

BWISFO

Baltimore/Washington

Fri 12/5

7:15 am-3:57 pm

2 stops11h 42m

San Francisco

Sun 12/7

7:37 pm-10:02 am

2 stops11h 25m

$294

BaltimoreSan Francisco

BWI - SFO

BWISFO

Baltimore/Washington

Thu 12/4

7:15 am-3:57 pm

2 stops11h 42m

San Francisco

Sat 12/6

10:30 am-12:21 am

2 stops10h 51m

$294

BaltimoreSan Francisco

BWI - SFO

BWISFO

Baltimore/Washington

Fri 12/5

7:15 am-3:57 pm

2 stops11h 42m

San Francisco

Fri 12/12

7:37 pm-10:02 am

2 stops11h 25m

$324

BaltimoreSan Francisco

BWI - SFO

BWISFO

Baltimore/Washington

Wed 1/28

7:14 pm-5:59 pm

1 stop25h 45m

San Francisco

Mon 2/2

4:46 pm-6:14 pm

1 stop22h 28m

$342

BaltimoreSan Francisco

BWI - SFO

BWISFO

Baltimore/Washington

Sat 12/6

7:00 am-3:46 pm

1 stop11h 46m

San Francisco

Sat 12/13

8:31 pm-6:16 pm

1 stop18h 45m

$372

BaltimoreSan Francisco

BWI - SFO

BWISFO

Baltimore/Washington

Wed 12/17

6:00 am-3:57 pm

2 stops12h 57m

San Francisco

Thu 12/18

7:00 pm-6:00 am

1 stop8h 00m

$372

BaltimoreSan Francisco

BWI - SFO

BWISFO

Baltimore/Washington

Sun 11/16

9:13 am-9:11 pm

1 stop14h 58m

San Francisco

Wed 11/19

8:55 pm-11:28 am

2 stops35h 33m

$383

BaltimoreSan Francisco

BWI - SFO

BWISFO

Baltimore/Washington

Sat 12/6

5:00 pm-8:05 pm

Nonstop6h 05m

San Francisco

Sat 12/13

5:00 am-7:20 pm

2 stops11h 20m

$446

BaltimoreSan Francisco

BWI - SFO

BWISFO

Baltimore/Washington

Wed 12/10

10:10 am-1:20 pm

Nonstop6h 10m

San Francisco

Sun 12/14

9:25 pm-5:30 am

Nonstop5h 05m

$459

BaltimoreSan Francisco

BWI - SFO

BWISFO

Baltimore/Washington

Mon 12/22

6:30 am-9:42 am

Nonstop6h 12m

San Francisco

Thu 1/1

5:00 am-4:58 pm

1 stop8h 58m

$478

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/6

Showing 1-10 of 20 results
1
2

Compare providers for flights from Baltimore to San Francisco

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Baltimore to San Francisco in November.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
Justfly.comPrice Accuracy3 starsTrust Score*3 stars
CheapOairPrice Accuracy3 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy3 starsTrust Score*2 stars
PricelinePrice Accuracy1 starTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Baltimore-San Francisco flights, users find the pricing of Justfly.com to be most consistent on Cheapflights vs. Justfly.com Users can find the same prices on Baltimore-San Francisco flight deals on Cheapflights vs. Justfly.com >95% of the time. Price accuracy is based on data collected from Baltimore-San Francisco flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Baltimore-San Francisco flights, Cheapflights users trust Justfly.com the most. Justfly.com has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Baltimore-San Francisco flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Baltimore to San Francisco

Have a flexible travel schedule? Discover the best time to fly to San Francisco from Baltimore with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Baltimore to San Francisco

How far ahead should I book a flight from Baltimore to San Francisco?

Use this chart to determine the optimal time to book a round-trip flight from Baltimore to San Francisco. Price data was last updated on October 31, 2025.

The best time to book flights from Baltimore to San Francisco is 31 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from Baltimore to San Francisco?

Currently, March is the cheapest month in which you can book a flight from Baltimore to San Francisco (average of $102). Flying from Baltimore to San Francisco in September is currently the most expensive (average of $188). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from BWI to SFO?

Find hourly flight availability from Baltimore to San Francisco. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 6, 2025.

One of the essential ways to save on airfare from Baltimore to San Francisco is to remain as flexible as possible. Flights that are in the evening tend to be the most expensive. A flight at noon could potentially save you up to 55% on airfare.

What is the cheapest day to fly from Baltimore to San Francisco?

Use this chart to determine the cheapest time to fly round-trip from Baltimore to San Francisco. Price data was last updated on November 2, 2025.

Travelers seeking maximum savings on their Baltimore to San Francisco flight should consider departing on Saturday at noon when fares are most often at their lowest. Tuesday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

The best insider tips for Baltimore to San Francisco flights

Snippets provided in this section are AI-generated based on a summarization of Cheapflights-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
Cheapflights partnered with top experts to bring you the best recommendations for your Baltimore to San Francisco trip
Airports
BWI

For early morning flights, arrive 20-30 minutes early to navigate busy security lines efficiently.

Read more about BWIby Emily Zemler
SFO

Use BART for a cost-effective trip from SFO to downtown San Francisco, taking about 40 minutes.

Read more about SFOby Harriet Baskas
Our travel experts
Emily Zemler

Emily Zemler

Expert on BWI

Emily Zemler

Emily Zemler

Emily is a freelance writer and book author based in London covering entertainment and travel. Her work has appeared in Los Angeles Times, Observer, and Conde Nast Traveler She has ventured to more than 40 countries and all seven continents, always in search of a great art museum. She has written extensively about hotels, luxury travel, and aviation.

Read more
Harriet Baskas

Harriet Baskas

Expert on SFO

Harriet Baskas

Harriet Baskas

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, USA TODAY, The Points Guy and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

Read more

Reviews of airlines servicing San Francisco

Get insights into the airlines that provide service to San Francisco. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to San Francisco. Reviews last updated November 6, 2025.
Get a feel of what it's like to fly with Southwest, Delta, and United Airlines from Baltimore to San Francisco by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,241 reviews

Entertainment

7.5

Comfort

8.0

Food

7.0

Overall

8.0

Crew

8.6

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Southwest
8.0
Very good
4,241 reviews
Southwest
8.0
Very good
4,241 reviews

Entertainment

7.5

Comfort

8.0

Food

7.0

Overall

8.0

Crew

8.6

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Delta
7.9
Good
8,001 reviews
Southwest
8.0
Very good
4,241 reviews

Entertainment

7.5

Comfort

8.0

Food

7.0

Overall

8.0

Crew

8.6

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
United Airlines
7.4
Good
9,007 reviews
Southwest
8.0
Very good
4,241 reviews

Entertainment

7.5

Comfort

8.0

Food

7.0

Overall

8.0

Crew

8.6

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
American Airlines
7.2
Good
11,040 reviews
Southwest
8.0
Very good
4,241 reviews

Entertainment

7.5

Comfort

8.0

Food

7.0

Overall

8.0

Crew

8.6

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Frontier
5.8
Fair
3,115 reviews
Southwest
8.0
Very good
4,241 reviews

Entertainment

7.5

Comfort

8.0

Food

7.0

Overall

8.0

Crew

8.6

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.

Related info for your journey

Find useful and relevant information for your journey from Baltimore to San Francisco. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airports do I use to fly from Baltimore to San Francisco?

    If you book a flight from Baltimore to San Francisco, you will be flying from Baltimore/Washington to San Francisco. Flights to San Francisco (SFO) from Baltimore/Washington (BWI) take 5h 45m for a nonstop flight. There are 3 flights from Baltimore/Washington to San Francisco per day from 8 airlines.

  • How popular is this Baltimore to San Francisco flight route?

    Within the past month, 42 users have taken a look at flights from Baltimore/Washington to San Francisco.

  • How long is the flight from Baltimore to San Francisco?

    Departing from Baltimore to San Francisco will take you 11h 42m. The distance between Baltimore and San Francisco is about 2449 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines flying from Baltimore to San Francisco round-trip?

    Currently priced at $123, Frontier will fly you from Baltimore to San Francisco and back. In addition to Frontier, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Spirit Airlines and Sun Country Air - these airlines can fly you to your destination from $134 and $162, respectively. Frontier is 72% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the most reliable airlines from Baltimore to San Francisco?

    Consider ANA (96%), Virgin Australia (93%) or United Airlines (92%) when booking your flight. These represent the most reliable airlines when flying from Baltimore to San Francisco.

  • What are the cheapest flights from Baltimore to San Francisco?

    Looking at all options, your cheapest flight can be booked for $178. While the most popular route (Baltimore/Washington - San Francisco) can be booked for $138 on average, our data indicates $1,072 when flying from Baltimore to San Francisco.

  • Can I find deals for flights from Baltimore to San Francisco that include hotel bookings?

    Yes. In addition to deals on Baltimore to San Francisco flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Baltimore to San Francisco?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Baltimore to San Francisco.

  • Can I find deals for business class flights from Baltimore to San Francisco?

    Yes. Cheapflights offers flight deals from Baltimore to San Francisco by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Baltimore to San Francisco?

    Currently, March is the cheapest month in which you can book a flight from Baltimore to San Francisco (average of $102). Flying from Baltimore to San Francisco in September is currently the most expensive (average of $188). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near San Francisco?

Book flights to San Francisco if you plan to visit one of these locations
Roseville
South San Francisco
Santa Cruz
Livermore
Turlock
Manteca
Watsonville
Sunnyvale
Santa Clara
Vallejo
Hollister
San Bruno
Foster City
Redwood City
Union City
Burlingame
Lodi
San Mateo
Vacaville
Lathrop

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Baltimore to San Francisco

See prices for flight routes from nearby airports that may be better suited for you.
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Top 8 airlines flying from Baltimore to San Francisco

Discover the top 8 airlines that operate flights from Baltimore to San Francisco. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated November 6, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$123Average$285FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$134Average$292FlexibilityNo cancel feeOn-time65%
Sun Country AirCheapest$162Average$365FlexibilityNo cancel feeOn-time83%
DeltaCheapest$286Average$398FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$289Average$484FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$298Average$430FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$308Average$475FlexibilityNo cancel feeOn-time71%
Alaska AirlinesCheapest$308Average$427FlexibilityNo cancel feeOn-time75%

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