San Francisco

$141+ 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 8/15. Fares are subject to change and may not be available on all flights or dates of travel.
BWI — SFO
Jun 22 — Jun 291
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Cheapflights Tip: The best prices from Baltimore/Washington to San Francisco are usually found in September or February, booked 31 days in advance, depart on a Friday or Thursday 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 June 17, 2025.

Round-trip from

$289
(CheapOair)

One-way from

$141
(Trip.com)

Popular in

December

Cheapest in

September

Average price

$488
From Baltimore/Washington to San Francisco
One-way flight from Baltimore/Washington to San Francisco
Highest demand for flights based on searches. 3% potential increase in price ($17 potential increase over avg. RT price).
Cheapest flight prices on average. 1% potential price decrease ($6 potential savings vs. average RT price).
Average for round-trip flights in June 2025

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 June 17, 2025.

This CheapOair deal was found by Cheapflights users on 6/16. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/82:59 pmBWI - SFO
1 stop22h 26mMultiple Airlines
Thu 7/1011:59 pmSFO - BWI
1 stop8h 30mMultiple Airlines
Deal found 6/16$289
This CheapOair deal was found by Cheapflights users on 6/16. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/82:59 pmBWI - SFO
1 stop22h 26mFrontier
Sat 7/196:37 amSFO - BWI
1 stop6h 54mFrontier
Deal found 6/16$290
This Sun Country Air deal was found by Cheapflights users on 6/16. 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 Sun Country Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/1412:19 pmBWI - SFO
1 stop13h 37mSun Country Air
Sun 8/247:15 amSFO - BWI
1 stop25h 12mSun Country Air
Deal found 6/16$315
This Alaska Airlines deal was found by Cheapflights users on 6/17. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/167:00 amBWI - SFO
2 stops12h 57mAlaska Airlines
Tue 9/2311:12 amSFO - BWI
2 stops15h 21mAlaska Airlines
Deal found 6/17$329
This American Airlines deal was found by Cheapflights users on 6/17. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/3011:24 amBWI - SFO
1 stop15h 09mAmerican Airlines
Sun 10/511:25 pmSFO - BWI
1 stop14h 25mAmerican Airlines
Deal found 6/17$353
This United Airlines deal was found by Cheapflights users on 6/16. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/56:42 amBWI - SFO
Nonstop5h 46mUnited Airlines
Mon 8/257:00 amSFO - BWI
1 stop7h 29mUnited Airlines
Deal found 6/16$401
This Southwest deal was found by Cheapflights users on 6/16. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/43:05 pmBWI - SFO
1 stop7h 35mSouthwest
Tue 8/129:05 pmSFO - BWI
Nonstop5h 10mSouthwest
Deal found 6/16$405
This Delta deal was found by Cheapflights users on 6/16. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/41:52 pmBWI - SFO
1 stop7h 54mDelta
Mon 8/1112:40 amSFO - BWI
1 stop7h 03mDelta
Deal found 6/16$415

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 June 17, 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

Tue 7/8

2:59 pm-10:25 am

1 stop22h 26m

San Francisco

Thu 7/10

11:59 pm-11:29 am

1 stop8h 30m

$289

BaltimoreSan Francisco

BWI - SFO

BWISFO

Baltimore/Washington

Tue 7/8

2:59 pm-10:25 am

1 stop22h 26m

San Francisco

Sat 7/19

6:37 am-4:31 pm

1 stop6h 54m

$290

BaltimoreSan Francisco

BWI - SFO

BWISFO

Baltimore/Washington

Thu 8/14

12:19 pm-10:56 pm

1 stop13h 37m

San Francisco

Sun 8/24

7:15 am-11:27 am

1 stop25h 12m

$315

BaltimoreSan Francisco

BWI - SFO

BWISFO

Baltimore/Washington

Fri 9/5

7:22 pm-4:57 pm

2 stops24h 35m

San Francisco

Sat 9/20

4:52 pm-5:33 am

1 stop9h 41m

$372

BaltimoreSan Francisco

BWI - SFO

BWISFO

Baltimore/Washington

Tue 8/5

6:42 am-9:28 am

Nonstop5h 46m

San Francisco

Mon 8/25

7:00 am-5:29 pm

1 stop7h 29m

$401

BaltimoreSan Francisco

BWI - SFO

BWISFO

Baltimore/Washington

Mon 8/4

3:05 pm-7:40 pm

1 stop7h 35m

San Francisco

Tue 8/12

9:05 pm-5:15 am

Nonstop5h 10m

$405

BaltimoreSan Francisco

BWI - SFO

BWISFO

Baltimore/Washington

Thu 8/14

7:00 am-6:12 pm

1 stop14h 12m

San Francisco

Sat 8/23

12:45 am-12:43 pm

1 stop8h 58m

$413

BaltimoreSan Francisco

BWI - SFO

BWISFO

Baltimore/Washington

Mon 8/4

1:52 pm-6:46 pm

1 stop7h 54m

San Francisco

Mon 8/11

12:40 am-10:43 am

1 stop7h 03m

$415

BaltimoreSan Francisco

BWI - SFO

BWISFO

Baltimore/Washington

Fri 8/15

5:45 am-11:14 pm

1 stop20h 29m

$142

BaltimoreSan Francisco

BWI - SFO

BWISFO

Baltimore/Washington

Fri 8/15

5:26 pm-12:19 am

1 stop9h 53m

$148

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/16

Showing 1-10 of 16 results
1
2

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 June 13, 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, January is the cheapest month in which you can book a flight from Baltimore to San Francisco (average of $276). Flying from Baltimore to San Francisco in June is currently the most expensive (average of $362). 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 June 17, 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 59% 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 June 15, 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. Sunday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Baltimore to San Francisco

Explore weekly flight availability from Baltimore to San Francisco. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated June 17, 2025.

The most flights from BWI to SFO are scheduled on a Monday (11 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (7 on average).

Rainfall in San Francisco by month

Plan your trip to San Francisco by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in San Francisco ranges from 0.0 - 4.4 inches per month. January is typically the wettest month, when rainfall can reach 4.4 in. July is typically the driest time to visit San Francisco when rainfall is around 0.0 in.

Temperature in San Francisco by month

Plan your trip to San Francisco by taking into account the average temperature totals by month.

If weather is an important factor for your trip to San Francisco, use this chart to help with planning. For those seeking warmer temperatures, September is the ideal time of year to visit, when temperatures reach an average of 62.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 51.8 F).

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 June 17, 2025.
Read through reviews of airlines operating flights from Baltimore to San Francisco, such as Alaska Airlines, Southwest and Delta. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Boarding

8.1

Overall

8.0

Food

7.1

Comfort

7.8

Crew

8.5

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Boarding

8.1

Overall

8.0

Food

7.1

Comfort

7.8

Crew

8.5

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Boarding

8.1

Overall

8.0

Food

7.1

Comfort

7.8

Crew

8.5

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
8.0
Very good

Boarding

8.1

Overall

8.0

Food

7.1

Comfort

7.8

Crew

8.5

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Boarding

8.1

Overall

8.0

Food

7.1

Comfort

7.8

Crew

8.5

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Boarding

8.1

Overall

8.0

Food

7.1

Comfort

7.8

Crew

8.5

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

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 9 flights from Baltimore/Washington to San Francisco per day from 8 airlines.

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

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

    Currently priced at $290, 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 Sun Country Air and Alaska Airlines - these airlines can fly you to your destination from $315 and $372, respectively. Frontier is 33% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the cheapest airlines to fly from Baltimore to San Francisco one-way?

    The cheapest airline one-way is Frontier, with whom users have recently found tickets for as low as $148. However, be on the lookout for offers from Sun Country Air and Alaska Airlines, as they are both options that can get you from Baltimore to San Francisco for a low price.

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

    Consider ANA (90%), Southwest (90%) or Virgin Australia (87%) 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 $160. While the most popular route (Baltimore/Washington - San Francisco) can be booked for $251 on average our data indicates $1,214 when flying from Baltimore to San Francisco.

  • Where are the most common layover locations when flying from Baltimore to San Francisco?

  • What are some popular things to do or see while on a layover in Charlotte?

    The majority of Charlotte visitors spend their time at Carowind, Mint Museum Uptown, and NASCAR Hall of Fame. Carowind, Mint Museum Uptown, and NASCAR Hall of Fame are located about 8.2 mi, 5.4 mi, and 5.7 mi, respectively from Charlotte Douglas. Travelers in need of a car in Charlotte can rent one for about $47 per day.

  • What are some popular points of interest to see during a layover in Atlanta?

    If you're on a layover in Atlanta and looking for things to do, consider visiting Georgia Aquarium, World of Coca-Cola, or Fox Theatre. Those on a layover in Atlanta interested in visiting Georgia Aquarium, World of Coca-Cola, or Fox Theatre can do so by traveling 8.6 mi, 8.6 mi, and 9.3 mi, respectively from Atlanta Hartsfield-Jackson. Those looking to explore during their layover in Atlanta can rent a car from Atlanta Hartsfield-Jackson for about $50 per day.

  • Where are the least popular layover locations for Baltimore to San Francisco flights?

  • 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, January is the cheapest month in which you can book a flight from Baltimore to San Francisco (average of $276). Flying from Baltimore to San Francisco in June is currently the most expensive (average of $362). 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 Baltimore?

Book flights to Baltimore if you plan to visit one of these locations
Roseville
Mountain View
South San Francisco
Livermore
Turlock
Santa Cruz
Manteca
Fairfield
Watsonville
Antioch
Hollister
Milpitas
Newark
Hayward
Alameda
Sunnyvale
Daly City
Union City
Campbell
Capitola

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.

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 June 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$101Average$228FlexibilityNo cancel feeOn-time65%
FrontierCheapest$134Average$280FlexibilityNo cancel feeOn-time62%
Sun Country AirCheapest$142Average$380FlexibilityNo cancel feeOn-time83%
American AirlinesCheapest$198Average$392FlexibilityNo cancel feeOn-time71%
DeltaCheapest$258Average$363FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$276Average$416FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$289Average$469FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$308Average$409FlexibilityNo cancel feeOn-time63%

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