BWI - SFO

$87 Find Cheap Flights from Baltimore to San Francisco

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Baltimore to San Francisco departing on 5/28. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
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These are the airlines KAYAK users have selected most often from within our search results in flight searches from Baltimore to San Francisco.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Baltimore to San Francisco.
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Cheap Flights from Baltimore to San Francisco

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Baltimore to San Francisco that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

Recent round-trip flight deals from Baltimore to San Francisco

KAYAK's recommended round-trip deals from the most popular airlines that fly from Baltimore to San Francisco.
Discover the best prices for you by selecting your travel dates on KAYAK.
Choose your dates
Frontier Logo
10:56 am - 10:22 pmBWI-SFO
14h 26m1 stop
Frontier Logo
10:19 pm - 10:07 amSFO-BWI
8h 48m1 stop
$177Frontier
Find Deal
Sat, May 17 - Sat, May 24
Frontier Logo
10:56 am - 10:22 pmBWI-SFO
14h 26m1 stop
Frontier Logo
6:15 am - 4:53 pmSFO-BWI
7h 38m1 stop
$178Frontier
Find Deal
Sat, May 17 - Sat, May 24
American Airlines Logo
6:54 am - 11:32 amBWI-SFO
7h 38m1 stop
American Airlines Logo
11:41 pm - 10:16 amSFO-BWI
7h 35m1 stop
$306American Airlines
Find Deal
Fri, Aug 15 - Sun, Aug 24
American Airlines Logo
3:19 pm - 8:44 pmBWI-SFO
8h 25m1 stop
American Airlines Logo
11:25 pm - 9:44 amSFO-BWI
7h 19m1 stop
$307American Airlines
Find Deal
Wed, Jul 9 - Mon, Jul 14
Delta Logo
7:20 am - 12:29 pmBWI-SFO
8h 09m1 stop
Delta Logo
6:00 am - 3:52 pmSFO-BWI
6h 52m1 stop
$309Delta
Find Deal
Tue, Jul 29 - Sat, Aug 9
Delta Logo
4:39 pm - 10:41 pmBWI-SFO
9h 02m1 stop
Delta Logo
11:45 pm - 11:42 amSFO-BWI
8h 57m1 stop
$334Delta
Find Deal
Fri, Aug 1 - Sun, Aug 3
United Airlines Logo
6:35 am - 9:44 amBWI-SFO
6h 09mnonstop
United Airlines Logo
11:08 pm - 7:27 amSFO-BWI
5h 19mnonstop
$349United Airlines
Find Deal
Tue, May 20 - Wed, May 28
Southwest Logo
3:35 pm - 10:20 pmBWI-SFO
9h 45m2 stops
Southwest Logo
9:15 am - 7:40 pmSFO-BWI
7h 25m1 stop
$370Southwest
Find Deal
Sat, May 24 - Wed, May 28
United Airlines Logo
7:00 pm - 9:50 pmBWI-SFO
5h 50mnonstop
United Airlines Logo
9:16 pm - 5:34 amSFO-BWI
5h 18mnonstop
$372United Airlines
Find Deal
Sat, May 24 - Wed, May 28
Southwest Logo
3:35 pm - 10:20 pmBWI-SFO
9h 45m2 stops
Southwest Logo
6:35 am - 11:00 pmSFO-BWI
13h 25m2 stops
$385Southwest
Find Deal
Sat, May 24 - Wed, May 28

Expert advice for your flight from Baltimore to San Francisco

 
Snippets provided in this section are AI-generated based on a summarization of KAYAK-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.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Airports
BWI

BWI offers street pricing for dining, so prices match local rates. Arrive early to enjoy local specialties like Maryland blue crab and unique vendor products.

Read more about BWIby Harriet Baskas
SFO

For a budget-friendly ride to San Francisco, take BART from SFO. The station is in the International Terminal, a short walk from T1 and T3.

Read more about SFOby Blane Bachelor
Our travel experts
Harriet Baskas

Harriet Baskas

Expert on BWI

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
Blane Bachelor

Blane Bachelor

Expert on SFO

Blane Bachelor

Blane Bachelor

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.

Read more

KAYAK's insights & trends for Baltimore to San Francisco flights

Get data-powered insights and trends into flights from Baltimore to San Francisco to help you find the cheapest flights, the best time to fly and much more.
Find cheap flights to San Francisco
Find cheap flights to San Francisco

Planning a trip from Baltimore to San Francisco? KAYAK’s data-powered insights will help you find cheap flights. Learn the best time to fly, how early to book your ticket, and other tips to secure great prices.

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

The average price of all round-trip flights from Baltimore to San Francisco clicked on KAYAK for each day over the last 12 months.
If your flying dates are flexible, you should consider flying to San Francisco on a Thursday, as we generally find the cheapest rates on that day for this route. On the other hand, Monday is the most expensive day to fly from Baltimore to San Francisco. For your return ticket, we recommend flying on a Wednesday and avoiding Sundays for the best deals.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Baltimore to San Francisco, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.
The cheapest month for flights from Baltimore to San Francisco is September, where tickets cost $379 (return) on average. On the other hand, the most expensive months are December and June, where the average cost of round-trip tickets is $497 and $483 respectively.

Can I save money by flying with a layover from Baltimore to San Francisco?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.
Yes, flying with a layover may cost you more time, but you can also save money on the route, with a 1 stop layover the cheapest option at $716 on average.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Baltimore to San Francisco, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.
To get a below average price on the flight from Baltimore to San Francisco, you should book around 4 weeks before departure. For the absolute cheapest price, our data suggests you should book 18 weeks before departure.

Good to know

Low season

January

High season

May

Cheapest flight

$87
Best time to beat the crowds with an average 7% drop in price.
Most popular time to fly and prices are also 8% lower on average.
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
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Baltimore to San Francisco

  • 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.

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

    In the last 3 days, the lowest price for a flight from Baltimore to San Francisco was $87 for a one-way ticket and $177 for a round-trip.

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

    No, a passport isn't needed to fly from Baltimore to San Francisco. However, local authorities might ask for an official ID.

  • Which airports will I be using when flying from Baltimore to San Francisco?

    Baltimore and San Francisco are both served by 1 main airport. You will leave Baltimore from Baltimore/Washington and will be arriving at San Francisco.

  • Which airlines offer Wi-Fi service onboard planes from Baltimore to San Francisco?

    Hawaiian Airlines, Alaska Airlines, and American Airlines offer inflight Wi-Fi service on the Baltimore to San Francisco flight route.

  • Which aircraft models fly most regularly from Baltimore to San Francisco?

    The Boeing 737 MAX 8 is the aircraft model that flies most regularly on the Baltimore to San Francisco flight route.

  • Which airline alliances offer flights from Baltimore to San Francisco?

    Star Alliance is the only airline alliance operating flights between Baltimore and San Francisco.

  • On which days can I fly direct from Baltimore to San Francisco?

    There are nonstop flights from Baltimore to San Francisco on a daily basis.

  • Which is the best airline for flights from Baltimore to San Francisco, Delta or Southwest?

    The two airlines most popular with KAYAK users for flights from Baltimore to San Francisco are Delta and Southwest. With an average price for the route of $357 and an overall rating of 8.0, Delta is the most popular choice. Southwest is also a great choice for the route, with an average price of $395 and an overall rating of 8.0.

  • How does KAYAK find such low prices on flights from Baltimore to San Francisco?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Baltimore to San Francisco.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Baltimore to San Francisco?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to San Francisco from Baltimore is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Baltimore to San Francisco?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to San Francisco with an airline and back to Baltimore with another airline. Booking your flights between Baltimore and SFO can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Baltimore to San Francisco?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to San Francisco from Baltimore up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

KAYAK’s top tips for finding a cheap flight from Baltimore to San Francisco

  • Looking for a cheap flight? 25% of our users found flights on this route for $194 or less one-way and $400 or less round-trip.
  • 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.
See more tips

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

ANA, Air New Zealand, United Airlines, +2 more

ANA, Air New Zealand, +3 more

Tuesday

ANA, Air New Zealand, United Airlines, +2 more

ANA, Air New Zealand, +3 more

Wednesday

ANA, Air New Zealand, United Airlines, +2 more

ANA, Air New Zealand, +3 more

Thursday

ANA, Air New Zealand, United Airlines, +2 more

ANA, Air New Zealand, +3 more

Friday

ANA, Air New Zealand, United Airlines, +2 more

ANA, Air New Zealand, +3 more

Saturday

ANA, Air New Zealand, United Airlines, +2 more

ANA, Air New Zealand, +3 more

Sunday

ANA, Air New Zealand, United Airlines, +2 more

ANA, Air New Zealand, +3 more

See more direct flights

Direct returns

San Francisco to Baltimore/Washington

Monday

Air New Zealand, United Airlines, Virgin Australia, +1 more

Air New Zealand, United Airlines, +2 more

Tuesday

Air New Zealand, United Airlines, Virgin Australia, +1 more

Air New Zealand, United Airlines, +2 more

Wednesday

Air New Zealand, United Airlines, Virgin Australia, +1 more

Air New Zealand, United Airlines, +2 more

Thursday

Air New Zealand, United Airlines, Virgin Australia, +1 more

Air New Zealand, United Airlines, +2 more

Friday

Air New Zealand, United Airlines, Virgin Australia, +1 more

Air New Zealand, United Airlines, +2 more

Saturday

Air New Zealand, United Airlines, Virgin Australia, +1 more

Air New Zealand, United Airlines, +2 more

Sunday

Air New Zealand, United Airlines, Virgin Australia, +1 more

Air New Zealand, United Airlines, +2 more

See more direct flights
See more direct flights

Top 5 airlines serving from Baltimore to San Francisco

 
See real verified KAYAK customer reviews for airlines flying from Baltimore to San Francisco. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Baltimore to San Francisco? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
SouthwestOverall score based on 4286 reviews
8.2Boarding
7.6Entertainment
8.6Crew
8.0Comfort
7.1Food
Airline reviews

The seats were a bit cramped and worn, but otherwise okay.

6.0 GoodDonald, Apr 2025BWI - SDF
Read more Southwest reviews

The seats were a bit cramped and worn, but otherwise okay.

It was a perfect flight in all aspects! Both legs!

Boarding process, crew were good. But the seats were so uncomfortable that was all I could focus on. I literally had to sit forward so that all 3 of us could fit in row. I will try to avoid Southwest in the future for any flights over 60 minutes.

Great flight, 47 passengers on a 180 seat plane. Stewardess was pleasant and cheerful.

Short flight with plenty of open seats. Drinks and snacks were still provided even on such a short flight. <1 hr

Great experience flying Southwest. The crew was really kind and helpful, and very friendly with our toddler.

Plane late from DC to Austin 30 minutes. Crew made up much of the time enroute to San Diego.

Fine, but how to board on SW versus othrr airlines, is just lame. Goood staff though and all was solid otherwise.

Was as expected. Crowed planes. Too many carryons delaying takeoff. But the ride only took an hour and saved me a lot of time SFO is a not a great airport.

Was as expected. Crowed planes. Too many carryons delaying takeoff. But the ride only took an hour and saved me a lot of time SFO is a hell hole of an airport. It is the new LaGuardia. Everything Cobbled together. Security gates closed. Terri directional signage

This had nothing to do with Delta… The flights were on time and flawless. The service was excellent. We purchased seats in (aisle/middle) comfort plus since this was a cross country flight. Unfortunately, the woman seated at the window was 300+ pounds and, as might be expected, covered up about a third of the middle seat also. there was absolutely nothing that Delta could have done about that… I just don’t know what the answer should be. If you purchase a seat, you should should be able to use the entire seat and not just the portion that someone else is not sitting/oozing in. Disappointing…there should be something that could be done….I'm just not sure what solution could be.

Seats are much much more comfortable than United, which is what I usually fly

If I pay extra for "comfort+" I expect leg room where I can stretch my legs. I was seated with an attendant's seat blocking my feet. Knee space was fine but my feet had less room than the non-"comfort+" seats. Also, don't go cheap on food when you have flights of 3+ hours. It's insulting.

Delta was really good about being transparent with why we were delayed it’s just that’s the plane was really old and outdated and a lot of the comfort and amenities we know Delta to have did not shine through

Only one side of the heafphone jack work. Crew was friendly and helpful.

Great. Flight departed early and arrived early. Deplaning and baggage claim ww were quick.

They separated our seats and moved us to the back of the plane. Hundreds of dollars and thousands of miles used and this was my platinum member experience.

AC barely worked on a 50 minute flight. It was very warm the whole flight. Flight was very bumpy and hard landing.

Got on the plane and then needed to deboard the plane because they didn’t have any pilots?

The flight was canceled two hours before departure, it took over five hours to rebook us on another flight.

The gate was too far away for the connecting flight

Generally good. The aisles have gotten narrower which can slow down boarding. Flight crew was great! Healthier complimentary snacks would be appreciated. Due to earthquake in San Francisco we had to circle in air space for a bit but then had a smooth landing. I laud the flight crew for their patience ;)

headphone jack didnt work for the first flight and not much variety

The agents was very rude and they charged me $50 for a carry-on bag saying that it was too big and then I saw someone going on a plane with the same size bag as me

For the most part united was a good experience, how ever when they came by with the snacks and water, they completely passed by my wife and I. As we were in separate rows. On a 5 hr flight we were not offered water

Fantastic crew. Flight was delayed at last minute but we were given updates every 20 minutes and the crew was so friendly and considerate. I miss the touch screens on the back of the seats, wish they would bring that back though.

Beijing PEK to SFO. I had an economy seat on this flight. The seat comfort was acceptable. My main complaint is with the FA’s lack of personality and absence from servicing the plane, specifically restroom care (I wish I could share a pic of the restroom that I captured) and care of travelers—drink cart/availability of drinks. I'm amazed at the level of service on other International travel where a passenger is most often appreciated.

Awful. Worst airline I have ever been on. Crew were among the rudest people I have ever dealt with. United staff members were rude and disrespectful. My flight was delayed, causing me to miss a connecting flight. I understand things happen, but when staff start lying about what actually happened, that is when I have an issue. Just be honest, really it isn’t that hard. I’m being very honest with this review and I don’t find this difficult what so ever. In fact, because of United Airlines, my Christmas holiday was off to a really rocky start. As someone who has traveled across the world, it has only been United that I have had a truly awful experience.

Good flight. On time. Boarding and seating was easy. Crew were really friendly, yet professional. Bathroom (by cockpit) was small but serviceable. Some the seats were showing some notable wear & tear, but were comfy. Very happy UA customer. TY! 🤛🏽💗

We were delayed 3x and because I didn’t purchase my tickets directly from United Airlines I was told I Have to take care of it myself so I called Underpricer and they helped me but before I changed my flights I took the risk of sticking by what my tickets were and was lucky to have gotten on the original all flight with only 15 mins before take off. not sure if I will do this again

One bottle of water and a package of cookies for comfort plus. We had to literally beg a flight attendant for an extra bottle of water later in the flight due to feeling dehydrated.

Flight boarded from Gate 39 at OGG, the farthest gate in the terminal. There were no Hawaiian themed amenities for the flight. The first class service was mediocre at best; I received not special welcome or recognition as an executive platinum member of American Advantage program. The flight attendants were more concerned with their cell phones than saying "thank you" to the passengers as we disembarked. Fortunately, the flight arrived at LAX a few minutes early.

Bigger seats. Board back to front! Disembark front to back!

Extraordinary service in business class, and very good breakfast and snacks. A really lovely flight.

This flight didn’t happen because AA agents didn’t let us board the flight

Kayak boarding information contained inaccuracies that would have not existed if booked directly with American. Paid for preferential boarding, was last to board.

Plane was pretty clean, staff was friendly and helpful, flight left about on time arrived early. Took a long time to board and get off the plane - carry on items didn't have enough room so people had to move all around to find places.

The service and food needs to improve to catch up with other international flights

Would have been good to have a meal since it was a 5.5 hour flight

We boarded after several delays due to mechanical failure and a gate change. The seat cushion in the exit row was very compressed and offered no cushion, making the four-hour journey reasonably uncomfortable. The WiFi worked for a few people, but for most, it did not, and you cannot get entertainment unless you can connect—American Airlines flights do not have seatback screens, and you must use your mobile phone.

Not very good. Paid in excess of $400 for assigned seating for my family and that was not provided. I want that money back.

The seats were hard molded plastic covered in plastic vinyl. And the scam to charge people extra to sit together. Don’t they know we can just ask someone to trade seats. And watching the staff separate young children from parents… super classy. We had to guilt them into offering up our seats. This companies policies suck. Don’t give them your money.

The seats were awful, hard plastic covered in sheet vinyl. The airline tries to scam you into paying extra to get seat together when the flight wasn’t full. They were going to separate a family with young children but my wife who had a row to herself gave up her seat so the young mom could be with her young boys. I’m never giving this airline my money again.

It was a short flight so no food or entertainment….

Seats are uncomfortable but price is good. Guess I can put up with misery for four hours.

I’ve never traveled on Frontier before. If you want basic, no frills, friendly service at great prices then give them a fly!

Cancelled and declined to find alternatives Earlier flight is 2 days later Sent the cancellation notification very late, wish I knew earlier would have stayed to watch the Miami open final game Very disappointing service

The worst flight of my life. Never will I fly frontier again

Landing in terminal 2, but my luggage is terminal 3. We (and others) were looking for it in terminal 1. We probably missed the crew broadcast, but the communication could have been clearer for non native (or elderly) passengers.

I chose the seats when booked the flight and paid for them. However after checking in I found we were assigned different seats!

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

Information on your arrival and departure airports

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