BWI - SFO

$159 Find Cheap Flights from Baltimore to San Francisco - Compare and Save

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Everything you should know

Cheapest round-trip
$367
Typical prices: $405-$596
Frontier
Wed 12/19Fri 12/21
BWI - SFO • 1 stop
Cheapest non-stop
$371
Typical prices: $430-$624
Southwest
Sat 12/8Tue 12/11
BWI - SFO • Non-stop
Nonstop flights
You can fly direct with United Airlines and Southwest. Average duration is 6h 14m
Direct flights
+1
Direct flights
+1
When to book
in advance
Our data shows that travelers who book at least 8 weeks in advance save around 27% compared to booking last minute.
Insights
Insights
When to travel
Cheapest • 13% price drop
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Cheapest • Avg $232 (round-trip)
Shortest trip • 7h 28m (one-way)
Insights
Insights
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We hope you love your trip to San Francisco!
Flight Deals
Booking Insights
Expert advice
Flight Deals

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

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Baltimore to San Francisco

Sat, Dec 19 - Mon, Dec 21
Frontier Logo
1:19 pm - 11:05 pmBWI  Baltimore/Washington-SFO San Francisco
12h 46m1 stop Atlanta Hartsfield-Jackson
Frontier Logo
9:46 pm - 6:22 pmSFO  San Francisco-BWI Baltimore/Washington
17h 36m2 stops Las Vegas Harry Reid Intl Atlanta Hartsfield-Jackson
$367Frontier
Sun, Nov 22 - Sat, Dec 5
Frontier Logo
5:42 pm - 10:32 amBWI  Baltimore/Washington-SFO San Francisco
19h 50m2 stops Houston George Bush Intcntl Denver Intl
Frontier Logo
12:55 pm - 8:42 amSFO  San Francisco-BWI Baltimore/Washington
16h 47m2 stops Denver Intl Atlanta Hartsfield-Jackson
$367Frontier
Fri, Jan 15 - Tue, Jan 19
Multiple Airlines Logo
12:38 pm - 10:50 pmBWI  Baltimore/Washington-SFO San Francisco
13h 12m1 stop Atlanta Hartsfield-Jackson
Multiple Airlines Logo
10:27 am - 5:17 pmSFO  San Francisco-BWI Baltimore/Washington
27h 50m2 stops Los Angeles Seattle/Tacoma Intl
$369Multiple Airlines
Wed, Dec 2 - Wed, Dec 9
United Airlines Logo
8:00 am - 11:12 amBWI  Baltimore/Washington-SFO San Francisco
6h 12mnonstop
United Airlines Logo
9:10 am - 5:25 pmSFO  San Francisco-BWI Baltimore/Washington
5h 15mnonstop
$371United Airlines
Fri, Jan 15 - Tue, Jan 19
United Airlines Logo
8:00 am - 11:20 amBWI  Baltimore/Washington-SFO San Francisco
6h 20mnonstop
United Airlines Logo
9:00 am - 5:16 pmSFO  San Francisco-BWI Baltimore/Washington
5h 16mnonstop
$371United Airlines
Tue, Dec 8 - Fri, Dec 11
Southwest Logo
10:40 am - 1:50 pmBWI  Baltimore/Washington-SFO San Francisco
6h 10mnonstop
Southwest Logo
9:25 pm - 5:30 amSFO  San Francisco-BWI Baltimore/Washington
5h 05mnonstop
$371Southwest
Wed, Jan 13 - Wed, Jan 20
Southwest Logo
10:45 am - 2:00 pmBWI  Baltimore/Washington-SFO San Francisco
6h 15mnonstop
Southwest Logo
11:10 am - 7:15 pmSFO  San Francisco-BWI Baltimore/Washington
5h 05mnonstop
$371Southwest
Fri, Jan 29 - Thu, Feb 4
JetBlue Logo
4:44 pm - 11:57 pmBWI  Baltimore/Washington-SFO San Francisco
10h 13m1 stop Fort Lauderdale
JetBlue Logo
8:00 am - 9:27 pmSFO  San Francisco-BWI Baltimore/Washington
10h 27m1 stop Fort Lauderdale
$371JetBlue
Fri, Dec 4 - Fri, Dec 4
Alaska Airlines Logo
7:00 am - 3:47 pmBWI  Baltimore/Washington-SFO San Francisco
11h 47m1 stop Seattle/Tacoma Intl
Alaska Airlines Logo
5:50 pm - 5:37 amSFO  San Francisco-BWI Baltimore/Washington
8h 47m1 stop Seattle/Tacoma Intl
$385Alaska Airlines
Thu, Dec 10 - Wed, Dec 16
Alaska Airlines Logo
7:00 am - 3:47 pmBWI  Baltimore/Washington-SFO San Francisco
11h 47m1 stop Seattle/Tacoma Intl
Alaska Airlines Logo
6:00 am - 5:00 pmSFO  San Francisco-BWI Baltimore/Washington
8h 00m1 stop Seattle/Tacoma Intl
$391Alaska Airlines
Booking Insights

Price, demand and travel trends for Baltimore to San Francisco flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

How much is a round-trip flight from Baltimore to San Francisco?

Round-trip flights from Baltimore to San Francisco typically range from $405 to $596. The lowest price found in the past 5 days was $367, on Frontier.

What's the cheapest day of the week to fly from Baltimore to San Francisco?

Based on deals KAYAK users found in the last 12 months, Tuesday is the cheapest day of the week to fly from Baltimore to San Francisco. It’s 7% cheaper than the average day, while Monday is the most expensive, with prices 9% higher.

What’s the cheapest month to fly from Baltimore to San Francisco?

•August is the cheapest month to fly from Baltimore to San Francisco at $430 round-trip.
•March ($531) and December ($530) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 23% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

When are flights from Baltimore to San Francisco the cheapest?

Flights from Baltimore to San Francisco are cheapest 8 weeks before departure. Booking in this window typically costs about 27% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

Expert advice

Expert advice for your flight from Baltimore to San Francisco

 
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Stefanie Waldek

Stefanie Waldek

Expert on United Airlines

Stefanie Waldek is a freelance space, travel, and design writer based in Saratoga Springs, NY. Her words have appeared in Space.com, Travel + Leisure, Condé Nast Traveler, Architectural Digest, and House Beautiful, among other publications. An expert in aviation and expedition cruising, Stefanie is frequently up in the air or on the sea, likely en route to Antarctica or the Arctic.

Blane Bachelor

Blane Bachelor

Expert on Southwest and SFO

Blane Bachelor is a journalist and editor specializing in travel and aviation who writes regularly for top global outlets. Born and raised in Florida, Blane has worked and lived in four countries, including the Netherlands, where she’s currently based with her family. Her favorite way to get to know a new destination is by running or riding a bike around town – or hearing a spooky ghost story about local history. She will always choose the window seat.

Harriet Baskas

Harriet Baskas

Expert on BWI

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.

Key details for Baltimore to San Francisco flights

Low season

September

Cheapest flight

$159
Beat the crowds with an average 30% drop in travelers.
The most popular month to fly with an average 29% increase in travelers.
One-way flight from Baltimore to San Francisco

When to book flights from Baltimore to San Francisco

Are your dates flexible? Find out the best times to travel from Baltimore to San Francisco based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

Your Baltimore to San Francisco flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines and booking tips.

  • What are the earliest and latest flights from Baltimore to San Francisco?

    These are the earliest and latest flight times available from Baltimore to San Francisco:

    • Earliest: departs at 7:10 am and lands at 1:24 pm
    • Latest: departs at 6:35 pm and lands at 12:49 am.

    The flight takes about 6h 14m.

  • What cabin classes can I book on flights from Baltimore to San Francisco?

    Four cabin classes are available on flights from Baltimore to San Francisco:

    • Economy Class
    • Premium Economy Class
    • Business Class
    • First Class

    Prices vary by airline.

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

    A nonstop flight from Baltimore to San Francisco takes 6h 14m, covering 2,449 miles.

  • Do I need a passport to fly from Baltimore to San Francisco?

    No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID or another TSA-accepted form of identification.

  • How much should I expect to pay for a Baltimore to San Francisco flight?

    Round-trip flights from Baltimore to San Francisco range from $405 to $596, with an average of $493 over the past 12 months. Anything below $405 counts as a good deal.

  • How expensive are last-minute Baltimore to San Francisco flights?

    Last-minute fares on this route (booked within two weeks of departure) run 14% above the $493 route average. Book 8 weeks before departure for the lowest fares.

  • How much can I save by taking a layover when flying from Baltimore to San Francisco?

    On this route, layover flights are cheaper than nonstop options on average. Layover fares average $232 round-trip via Houston George Bush Intcntl (IAH), compared to $520 for nonstop.

  • What is the standard checked-bag allowance on flights from Baltimore to San Francisco?

    There is no standard. Checked-bag policies vary by airline on this route. Most carriers charge $40–$90 for the first checked bag in economy. Premium fares and elite-status bookings typically include a free checked bag.

  • Which aircraft model is used most often on flights from Baltimore to San Francisco?

    The Boeing 737 MAX 8 family is used most often on this route, operated mainly by United Airlines and Southwest. Other aircraft seen on the route include Boeing 737 MAX 9 variants.

  • How are flight departures from Baltimore to San Francisco spread across the day?

    Morning is the busiest departure period on Baltimore to San Francisco flights, with 100% of flights leaving in that window. Afternoon departures account for 0%, evening flights for 0%, and night flights for 0%.

  • Have flight prices from Baltimore to San Francisco changed much recently?

    Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $367 to $2,038. That means the highest observed fare was about 6x higher than the lowest one.

  • Which airlines offer Wi-Fi on Baltimore to San Francisco flights?

    JetBlue is the only airline on the Baltimore to San Francisco route offering in-flight Wi-Fi. Pricing depends on fare class.

  • How are flight prices from Baltimore to San Francisco looking right now?

    One-way fares from Baltimore to San Francisco are currently lower than usual. Average one-way flight prices are about $181, which is 32% below the typical average for this route.

  • What car rental options are available at San Francisco Airport (SFO)?

    San Francisco Airport (SFO) hosts 5 major car rental companies, with daily rates averaging $63 for economy cars. Top options include:

    • Europcar
    • Thrifty
    • Dollar
    • Hertz
    • Fox

  • Which airports can I use when flying from Baltimore to San Francisco?

    Flights from Baltimore to San Francisco usually depart from Baltimore/Washington (BWI) and arrive at San Francisco (SFO).

  • Which airports do connecting flights from Baltimore to San Francisco pass through?

    One-stop flights from Baltimore to San Francisco most commonly connect through:

    • Atlanta Hartsfield-Jackson (ATL) - 37% of one-stop connections
    • Minneapolis St Paul (MSP) - 10% of one-stop connections
    • Charlotte Douglas (CLT) - 10% of one-stop connections
    • Dallas/Fort Worth (DFW) - 10% of one-stop connections

  • Can I save money by using flexible dates for flights from Baltimore to San Francisco?

    Yes. Flexible dates can save you up to 15% on flights from Baltimore to San Francisco. Tuesday is the cheapest departure day at $461 round-trip on average, while Monday is the most expensive at $538, a difference of $77.

    KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • What airlines fly from Baltimore to San Francisco?

    2 airlines operate flights between Baltimore and San Francisco. The airlines offering nonstop flights on this route include:

    • United Airlines
    • Southwest

  • How much time can I save by choosing a different layover airport from Baltimore to San Francisco?

    Flying via Detroit Metropolitan Wayne County (DTW) gives the shortest average 1-stop total travel time at 7h 28m, compared with 7h 34m via Lambert-St Louis (STL) and 7h 35m via Chicago Midway (MDW).

  • What is the time difference between Baltimore and San Francisco?

    San Francisco is 3 hours behind Baltimore (Pacific Time vs Eastern Time). Plan for the time shift when scheduling connections or first-day activities.

  • What popular places can I visit in San Francisco?

    Some of the most popular sights in San Francisco are Fisherman's Wharf, Union Square and Moscone Center. These are among the most viewed places in San Francisco on KAYAK.

  • Which airlines offer extra legroom and free seat selection on Baltimore to San Francisco flights?

    Among airlines operating Baltimore to San Francisco flights:

    • United Airlines: offers extra legroom; offers free seat selection
    • Southwest: offers free seat selection

    Extra legroom and free seat selection availability depends on fare class and route.

  • Which airlines include bags at no extra cost on Baltimore to San Francisco flights?

    Here are some options for this route, based on selected ticket types and cabin classes:

    • United Airlines: a cabin bag and a checked bag in Economy Class
    • Southwest: a cabin bag and a checked bag in Economy Class
    • JetBlue: a cabin bag in Economy Class class

    Bag allowance can vary by ticket type, cabin class, route and airline, so always check the fare details before booking.

  • Where can I sleep at San Francisco International Airport?

    If you’re looking for a place to nap, FreshenUp offers three nap rooms that are available for rent. The establishment is inside the International Terminal landside on level G in the main hall. The nap rooms have a bed, mirror, desk, and Wi-Fi. You can access shower facilities for an additional cost. If you’re looking for an overnight stay, book your place at the Grand Hyatt at SFO. The hotel offers day rooms and overnight stays and is connected to SFO via the AirTrain.

  • Does San Francisco International Airport offer accessible services?

    Passengers with reduced mobility will have ramps and elevators to access the terminals easily. There are also reserved parking spots, dedicated seating, wheelchair assistance, and accessible restrooms at SFO. Low-vision passengers are welcome to bring service animals to the airport. The airport has braille signage and tactile guide paths, and Aira services are also available at SFO. For hard-of-hearing passengers, SFO has video phones, TTY phones, and visual paging services.

  • What are the transport options from San Francisco International Airport?

    SFO is served by the San Francisco BART, which offers easy connections to downtown, and other train services. Using the SFO BART, you can get to CalTrain trains which travel to cities neighboring San Francisco. SFO is also served by SamTrans buses which are available in Terminals 2, 3, and the International Terminal. You can also take shared-ride shuttles, but reservations are required for these services. Taxis are available outside baggage claim in all terminals and most charge between $47-$67 for a trip downtown.

  • Does San Francisco International Airport offer family services?

    Nursing rooms are provided for those traveling with infants. They are mostly airside in all terminals, except for Terminal 2, where they’re both airside and landside. If you’re looking for baby changing facilities, they are in the family washrooms around SFO. The airport also has strollers, car seats, and other baby facilities at Cloud of Good. The establishment has three kiosks at SFO, and you can rent these facilities online and pick them up at any of their three kiosks. For the older kids, SFO has play areas around Gates 22, 54A, 58B, 87A, 62, and Boarding Area F.

Your guide to booking Baltimore to San Francisco flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates are flexible, aim for a Tuesday departure and avoid flying on Monday. On this route, Tuesday flights average $461, about $77 less than Monday fares (14% savings) based on the last 12 months.
  • For the best chance at a low fare, aim to book around 8 weeks before you fly. On this route, that window historically saves about 27% versus last-minute pricing (KAYAK booking data, last 12 months).
  • If you can choose when to travel, plan your Baltimore to San Francisco trip for August. Fares historically average $430 round-trip in that month - typically $101 less than the most expensive month, which is March (based on the last 12 months).
  • If you have the time, taking a 1-stop flight through Houston George Bush Intcntl Airport (IAH) can be cheaper than flying direct. The cheapest layover option averages $232 round-trip on this route - about $288 less than direct flights (based on the last 12 months).
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to San Francisco Airport.

    • Grand Hyatt At Sfo
  • San Francisco International Airport (SFO) has four terminals, and the airport has provided an AirTrain that runs every 4min around the airport complex.
  • Pets are welcome to travel through Baltimore/Washington International Thurgood Marshall Airport (BWI). You’ll find pet relief areas around Concourses C and E and outside Door 19.
  • The Club BWI and USO Lounge are the only lounges available to passengers at BWI. The Club BWI is on Concourse D around Gate D10, and you can pay at the door to access lounge services. The USO Lounge is open to active US military members and is on the lower level beside baggage claim 14.
  • Around 1,046 kg of carbon is emitted on flights from Baltimore-Washington to San Francisco. You can fly more sustainably with JetBlue, which offers the eco-friendliest flight, emitting 32% less carbon per passenger.
  • M&T Bank runs a full-service bank at BWI. The bank offers banking and currency exchange services and is located landside near Concourse A.

Prefer to fly direct from Baltimore to San Francisco?

 
Find which airlines fly direct from Baltimore/Washington Airport to San Francisco Airport, which days they fly and book direct flights.

Direct departures

Baltimore/Washington to San Francisco

Monday

Southwest,United Airlines

Southwest,United Airlines

Tuesday

Southwest,United Airlines

Southwest,United Airlines

Wednesday

Southwest,United Airlines

Southwest,United Airlines

Thursday

Southwest,United Airlines

Southwest,United Airlines

Friday

Southwest,United Airlines

Southwest,United Airlines

Saturday

Southwest,United Airlines

Southwest,United Airlines

Sunday

Southwest,United Airlines

Southwest,United Airlines

See more direct flights

Direct returns

San Francisco to Baltimore/Washington

Monday

Southwest,United Airlines

Southwest,United Airlines

Tuesday

Southwest,United Airlines

Southwest,United Airlines

Wednesday

Southwest,United Airlines

Southwest,United Airlines

Thursday

Southwest,United Airlines

Southwest,United Airlines

Friday

Southwest,United Airlines

Southwest,United Airlines

Saturday

Southwest,United Airlines

Southwest,United Airlines

Sunday

Southwest,United Airlines

Southwest,United Airlines

See more direct flights

More options for your flight from Baltimore to San Francisco

Complete your trip to San Francisco with a hotel stay or car rental