San Francisco

$145+ 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 9/18. Fares are subject to change and may not be available on all flights or dates of travel.
BWI — SFO
Jul 5 — Jul 121
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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 30, 2025.

Round-trip from

$286
(Kiwi.com)

One-way from

$145
(Frontier)

Popular in

December

Cheapest in

September

Average price

$486
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 30, 2025.

This Kiwi.com deal was found by Cheapflights users on 6/28. 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 7/912:31 pmBWI - SFO
1 stop11h 52mFrontier
Fri 7/188:53 pmSFO - BWI
1 stop9h 40mFrontier
Deal found 6/28$286
This Expedia deal was found by Cheapflights users on 6/27. 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.
Mon 9/86:27 pmBWI - SFO
1 stop8h 49mMultiple Airlines
Wed 9/104:52 pmSFO - BWI
1 stop9h 41mMultiple Airlines
Deal found 6/27$296
This United Airlines deal was found by Cheapflights users on 6/30. 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.
Thu 8/77:00 pmBWI - SFO
Nonstop5h 49mUnited Airlines
Mon 8/119:10 pmSFO - BWI
Nonstop5h 18mUnited Airlines
Deal found 6/30$297
This Cheapflightsfares deal was found by Cheapflights users on 6/28. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/1412:19 pmBWI - SFO
1 stop7h 37mSun Country Air
Sun 8/1711:59 pmSFO - BWI
1 stop8h 24mSun Country Air
Deal found 6/28$299
This Southwest deal was found by Cheapflights users on 6/30. 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.
Wed 8/276:50 amBWI - SFO
2 stops10h 50mSouthwest
Thu 9/49:05 pmSFO - BWI
Nonstop5h 10mSouthwest
Deal found 6/30$312
This Delta deal was found by Cheapflights users on 6/30. 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.
Thu 8/147:29 pmBWI - SFO
1 stop8h 06mDelta
Wed 8/2012:35 amSFO - BWI
1 stop7h 10mDelta
Deal found 6/30$317

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 30, 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

Wed 7/9

12:31 pm-9:23 pm

1 stop11h 52m

San Francisco

Fri 7/18

8:53 pm-9:33 am

1 stop9h 40m

$286

BaltimoreSan Francisco

BWI - SFO

BWISFO

Baltimore/Washington

Mon 9/8

6:27 pm-12:16 am

1 stop8h 49m

San Francisco

Wed 9/10

4:52 pm-5:33 am

1 stop9h 41m

$296

BaltimoreSan Francisco

BWI - SFO

BWISFO

Baltimore/Washington

Thu 8/7

7:00 pm-9:49 pm

Nonstop5h 49m

San Francisco

Mon 8/11

9:10 pm-5:28 am

Nonstop5h 18m

$297

BaltimoreSan Francisco

BWI - SFO

BWISFO

Baltimore/Washington

Thu 8/14

12:19 pm-4:56 pm

1 stop7h 37m

San Francisco

Sun 8/17

11:59 pm-11:23 am

1 stop8h 24m

$299

BaltimoreSan Francisco

BWI - SFO

BWISFO

Baltimore/Washington

Wed 8/27

6:50 am-2:40 pm

2 stops10h 50m

San Francisco

Thu 9/4

9:05 pm-5:15 am

Nonstop5h 10m

$312

BaltimoreSan Francisco

BWI - SFO

BWISFO

Baltimore/Washington

Thu 8/14

7:29 pm-12:35 am

1 stop8h 06m

San Francisco

Wed 8/20

12:35 am-10:45 am

1 stop7h 10m

$317

BaltimoreSan Francisco

BWI - SFO

BWISFO

Baltimore/Washington

Thu 9/18

6:25 am-11:02 pm

2 stops19h 37m

$145

BaltimoreSan Francisco

BWI - SFO

BWISFO

Baltimore/Washington

Fri 7/18

6:22 pm-7:44 pm

1 stop28h 22m

$148

BaltimoreSan Francisco

BWI - SFO

BWISFO

Baltimore/Washington

Thu 8/7

6:42 am-9:28 am

Nonstop5h 46m

$149

BaltimoreSan Francisco

BWI - SFO

BWISFO

Baltimore/Washington

Thu 8/14

12:19 pm-4:56 pm

1 stop7h 37m

$153

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/30

Showing 1-10 of 14 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 27, 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 $360). 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 30, 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 29, 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 30, 2025.

The most flights from BWI to SFO are scheduled on a Sunday (12 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (3 on average).

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 30, 2025.
Get a feel of what it's like to fly with Alaska Airlines, Southwest, and Delta 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.

Comfort

7.8

Boarding

8.1

Food

7.1

Crew

8.5

Entertainment

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Comfort

7.8

Boarding

8.1

Food

7.1

Crew

8.5

Entertainment

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Comfort

7.8

Boarding

8.1

Food

7.1

Crew

8.5

Entertainment

7.1

Overall

8.0

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

Comfort

7.8

Boarding

8.1

Food

7.1

Crew

8.5

Entertainment

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Comfort

7.8

Boarding

8.1

Food

7.1

Crew

8.5

Entertainment

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Comfort

7.8

Boarding

8.1

Food

7.1

Crew

8.5

Entertainment

7.1

Overall

8.0

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 40m for a nonstop flight. There are 6 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 $286, 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 United Airlines and Sun Country Air - these airlines can fly you to your destination from $297 and $299, respectively. Frontier is 34% 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 $145. However, be on the lookout for offers from United Airlines and Sun Country Air, 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 $175. While the most popular route (Baltimore/Washington - San Francisco) can be booked for $223 on average our data indicates $1,254 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 $44 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 $360). 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
Santa Cruz
Turlock
Manteca
Watsonville
Fairfield
Antioch
Hollister
Milpitas
Sunnyvale
Newark
Alameda
Hayward
Daly City
Campbell
Capitola
Foster City

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 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$101Average$228FlexibilityNo cancel feeOn-time65%
FrontierCheapest$119Average$280FlexibilityNo cancel feeOn-time62%
Sun Country AirCheapest$142Average$365FlexibilityNo cancel feeOn-time83%
American AirlinesCheapest$212Average$393FlexibilityNo cancel feeOn-time71%
DeltaCheapest$261Average$362FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$276Average$416FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$289Average$471FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$308Average$418FlexibilityNo cancel feeOn-time63%

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