SFO - BWI

$155 Find Cheap Flights from San Francisco to Baltimore

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from San Francisco to Baltimore departing on 4/20. 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.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Baltimore

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from San Francisco to Baltimore.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from San Francisco to Baltimore.
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Everything you should know

Cheapest round-trip
$313
Overall average: $389
Frontier
Wed 4/15Wed 4/22
SFO - BWI • 1 stop
Cheapest non-stop
$329
Typical prices: $365-$524
Southwest
Tue 4/21Wed 4/22
SFO - BWI • Non-stop
Advice from real travelers
AI-powered summary based on content written by travel experts. AI can make mistakes.
United's Economy Plus offers extra legroom on this route.
BWI provides a free shuttle to the Amtrak/MARC station.
Expert advice
Expert advice
Expert advice
Expert advice
Top airlines
Cheapest • from $313 (round-trip)
Best reviews • 8.0 score
Airline reviews
Airline reviews
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Airline reviews
Airline reviews
+1
Nonstop flights
You can fly direct with Southwest and United Airlines. Average duration is 5h 23m
Direct flights
Direct flights
+1
+1
Direct flights
Direct flights
+1
Avoid delays
Most punctual • 90% on-time
Best time • Fewest delays
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $213 (round-trip)
Shortest trip • 7h 09m (one-way)
Insights
Insights
Insights
Insights
When to book
in advance
Our data shows that travelers who book at least 4 weeks in advance save around 19% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 19% price drop
Most popular
Good to know
Good to know
+1
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Flight Deals
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Expert advice
Flight Deals

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

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from San Francisco to Baltimore 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.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from San Francisco to Baltimore

Wed, Apr 15 - Wed, Apr 22
Frontier Logo
10:38 pm - 12:44 am
SFO
-
BWI
23h 06m
1 stop
Frontier Logo
6:00 am - 5:34 pm
BWI
-
SFO
14h 34m
1 stop
$313Frontier
Thu, Apr 23 - Tue, Apr 28
Frontier Logo
10:38 pm - 12:44 am
SFO
-
BWI
23h 06m
1 stop
Frontier Logo
6:00 am - 9:39 pm
BWI
-
SFO
18h 39m
2 stops
$314Frontier
Fri, Apr 24 - Wed, Apr 29
Frontier Logo
10:38 pm - 11:21 am
SFO
-
BWI
9h 43m
1 stop
Frontier Logo
12:17 pm - 9:13 am
BWI
-
SFO
23h 56m
2 stops
$315Frontier
Mon, Apr 20 - Sat, Apr 25
Frontier Logo
10:38 pm - 11:22 am
SFO
-
BWI
9h 44m
1 stop
Frontier Logo
6:53 am - 5:34 pm
BWI
-
SFO
13h 41m
1 stop
$316Frontier
Wed, Apr 29 - Wed, May 6
Frontier Logo
6:29 pm - 12:44 am
SFO
-
BWI
27h 15m
2 stops
Frontier Logo
9:25 pm - 7:34 pm
BWI
-
SFO
25h 09m
1 stop
$318Frontier
Tue, Apr 14 - Sat, Apr 18
Frontier Logo
7:40 pm - 11:19 am
SFO
-
BWI
12h 39m
2 stops
Frontier Logo
6:53 am - 5:34 pm
BWI
-
SFO
13h 41m
1 stop
$319Frontier
Wed, May 6 - Sat, May 9
Frontier Logo
8:48 pm - 11:37 am
SFO
-
BWI
11h 49m
2 stops
Frontier Logo
7:14 pm - 11:04 pm
BWI
-
SFO
30h 50m
1 stop
$320Frontier
Tue, Apr 14 - Wed, Apr 15
Frontier Logo
10:38 pm - 11:19 am
SFO
-
BWI
9h 41m
1 stop
Frontier Logo
3:06 pm - 8:23 am
BWI
-
SFO
20h 17m
2 stops
$321Frontier
Sun, Apr 12 - Wed, Apr 15
Frontier Logo
9:00 pm - 9:05 pm
SFO
-
BWI
21h 05m
2 stops
Frontier Logo
6:00 am - 5:34 pm
BWI
-
SFO
14h 34m
1 stop
$322Frontier
Sat, Apr 18 - Tue, Apr 21
Frontier Logo
6:00 am - 12:44 am
SFO
-
BWI
15h 44m
2 stops
Frontier Logo
5:49 pm - 5:34 pm
BWI
-
SFO
26h 45m
1 stop
$323Frontier
Booking Insights

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

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

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

The average price of all round-trip flights from San Francisco to Baltimore clicked on KAYAK for each day over the last 12 months.

If your flying dates are flexible, you should consider flying to Baltimore on a Wednesday, as we generally find the cheapest rates on that day for this route. On the other hand, Sunday is the most expensive day to fly from San Francisco to Baltimore. For your return ticket, we recommend flying on a Thursday and avoiding Mondays for the best deals.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from San Francisco to Baltimore, 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 San Francisco to Baltimore is April, where tickets cost $389 (return) on average. On the other hand, the most expensive months are November and December, where the average cost of round-trip tickets is $635 and $541 respectively.

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

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 $523 on average.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from San Francisco to Baltimore, 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 San Francisco to Baltimore, you should book around 4 weeks before departure, which saves you about 19% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 26 weeks before departure.

Expert advice

Expert advice for your flight from San Francisco to Baltimore

 
AI-powered summary based on content written by travel experts. AI can make mistakes.
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.

Good to know

Low seasonJanuary
Cheapest flight$155
Best time to beat the crowds but there is an average 10% increase in price.
Most popular time to fly and prices are also 7% lower on average.
Flight from San Francisco to Baltimore

When to book flights from San Francisco to Baltimore

Are your dates flexible? Find out the best times to travel from San Francisco to Baltimore 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 San Francisco to Baltimore

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

    In the last 3 days, the lowest price for a flight from San Francisco to Baltimore was $155 for a one-way ticket and $313 for a round-trip.

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

    A passport is not required to fly from San Francisco to Baltimore.

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

    All the following airlines offer inflight Wi-Fi service on the San Francisco to Baltimore flight route: Alaska Airlines, JetBlue, Hawaiian Airlines, Delta, American Airlines, and Air Canada.

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

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

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

    oneworld, SkyTeam, and Star Alliance are the airline alliances operating flights between San Francisco and Baltimore, with oneworld being the most commonly used for this route.

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

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

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

    The two airlines most popular with KAYAK users for flights from San Francisco to Baltimore are Southwest and Delta. With an average price for the route of $449 and an overall rating of 8.0, Southwest is the most popular choice. Delta is also a great choice for the route, with an average price of $443 and an overall rating of 7.9.

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

    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 San Francisco to Baltimore.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Baltimore from San Francisco 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 San Francisco to Baltimore?

    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 Baltimore with an airline and back to San Francisco with another airline. Booking your flights between San Francisco and BWI 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 San Francisco to Baltimore?

    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 Baltimore from San Francisco up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

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

  • Looking for a cheap flight? 25% of our users found flights on this route for $215 or less one-way and $409 or less round-trip.

Prefer to fly direct from San Francisco to Baltimore?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from San Francisco to Baltimore/Washington.
Find which airlines fly direct from San Francisco Airport to Baltimore/Washington Airport, which days they fly and book direct flights.

Direct departures

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

Direct returns

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

Reviews of the top 5 airlines serving from San Francisco to Baltimore

 
See real verified KAYAK customer reviews for airlines flying from San Francisco to Baltimore. 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 San Francisco to Baltimore? 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 4324 reviews
8.0Comfort
7.0Food
8.6Crew
7.5Entertainment
8.1Boarding
Airline reviews

Southwest was greaat! The most expensive but the least upsetting for those we were flying to see.

10.0 ExcellentMartie, Mar 2026
LGB - BNA
Read more Southwest reviews

Southwest was greaat! The most expensive but the least upsetting for those we were flying to see.

Boarding was easy. The seats are small and fairly uncomfortable

We had a 5 hour delay on the tarmac in Baltimore

Long layover between flights to Long Island from BWI - need better coordination between flights

The problem with the seat assignments is that there were a lot of rows in the front that were empty but my row at the back was full. Just not so pleasant.

Good but I prefer choose your own seat. With the new assigned seats they should board from the back I see no advantage to this new boarding. Just like every other airline

Flight boarded late after announcing on time boarding. Flight arrived only a little late despite late departure. Had trouble connecting to WiFi

The last 3 flights between BWI and BDL canceled the beverage service mid- way. Just say up front that the fight is too short. Thanks!

The Southwest experience has definitely taken a dive from its early days. You can no longer deferentiate from other airlines. Air travel is too expensive. Southwest is no longer budget friendly. They have lost me as a loyal customer.

The charges were ridiculous for an hour flight and the turbulence was very scary.

My recent experience was excellent on Delta! I flew with Delta Comfort and I was really comfortable in my seat. I enjoyed the in-flight service. The flight attendants were so friendly and hospitable. I love the snack on the flight as well. This was my first time flying on Delta and I will definitely consider flying with them again.

My flight was canceled on Sunday. Rebooking took three hours. Had to pay for accommodations another night. New flight was delayed for 5 hours, all that was sent was a 12 dollar food voucher, which doesn’t tell you how to use it. Then when we landed we had to sit on the plane for an hour before we could get off.

I was in first class and literally the men behind me were so aggressively loud I moved myself to economy. This has become so common on Delta - people using audio without headphones, and men on 12am / late night flights drinking and yelling to talk to each other which prevents anyone around them from resting. Pretty crazy to have to move from first to economy (poorer service, less comfort...). Wild wild. Looking into other airlines.

Flight was delayed by 3-hours and their fix was… complimentary pretzels.

The crew, and fellow passengers, were super gracious and kind. There seemed to be plenty of bin space even though the plane was full. It’s nice to get a glass of wine with dinner in Premiere seating, and there was a lot of food.

Everything I mentioned earlier - the airbus was more comfortable indeed and the experience was further enhanced.

The plane was an older model, so it wasn’t as comfortable as others. The flight attendants were not helpful during onboarding. It was a full flight so there was chaos finding space for baggage.

Awesome! On time flight, early arrival, and a complimentary upgrade!

Delta One is extraordinary. I fly business when somebody hires me. I just wonder why there is such a chasm between business class and the insanely inhumane and nonsensical coach. The seats are not large enough to fit even my tiny wife. We fly 10% of what we did because we don’t want to pay 5-10 k but for $400 it’s unbearable. It seems like the accountants took over and made stupid decisions. Screw in 20 extra seats and make it so unbearable that people fly 90% less. Just put the damn price up and put some proper chairs in. But business, yay.

Delta’s staff is unmatched. From the gate agents, to the pilots, to the flight attendants… all top of the industry.

Seats are uncomfortable. This has been a trend in the industry for decades. Trying to fit more seats on each plane to increase profits at the expense of the passenger.

Staff were good. My seat was in need of repair, but for a short flight was not problematic. Usual basic snack and drink setup that you'll find on any US carrier. Over, a decent, basic flight.

Flight delayed for more than 16 hrs and no effort was spent to provide an alternate

it was a very short flight so my expectations were low.

Very disappointing given gate agent behavior. Filed a formal complaint with United.

Terrible. No customer service, no food, no drinks on a 6 hour premier economy booking.

Not being stranded in Chicago for her airport to 11:30 tomorrow morning the 3rd

The flight crew where really good. Better then the crew from BNE to SFO

left on time, reasonable boarding process arrived early luggage came out quickly

Pushed back only to get deplaned due to a tire damaged by ground crew. They did at least go pretty fast. The bathrooms should be banned under the Geneva convention. No room to even sit straight on the toilet. The under-seat entertainment units block what little leg room there is.

Terrible planning. And even worse gate agents. Absolutely rude behavior.

Flight was scheduled at 11:26am but they keep Delaying until midnight. They waited at airport restless.

Rough flight No beverage service due to turbulence Bottom Seat cushion was non existent

Not good. One of my luggage is missing. And until now they can’t find it

My 9:50AM flight was delayed to 3:40PM "due to incoming aircraft delay". No aircraft is "delayed" that long. Found out once we did board (after several changes in times) that the aircraft had a maintenance issue and we had to wait for another aircraft. Just tell us that. The aircraft we did get was old and the seats need to be updated. I have been traveling for several weeks with AA and you should refresh your entertainment content as frequent flyers have gone through most of your new content. I have Celiac and a shellfish allergy and continue to have struggles with meals on business and first class flights. Please keep this in mind. Sorry - was a long travel day yesterday and a bit cranky this morning with my experience comments. Still an AA fan.

Delay after delay with little communication then AA lost my luggage and at airport would not assist just said scan this QR code to track your luggage and submit a claim. However QR code provided did not work so have to go back to airport

Dloght delayed by 2.5 hrs . Common theme in my last four american floghts

They are rarely on time! Very hard to plan your travels when flights or connections keep getting delayed.

My seat was assigned last row behind restrooms No legroom’s I’m very Pettit Still was not comfortable Food choice was excellent

The worst Airline ever. They centered my second flight and leave me in NY. They don’t have any representatives at the airport and they don’t respond to calls. Basically I got stuck. I will never purchase through there again.

Remind customers of the need to have passport or new ID for boarding.

The flight never took off and we spent 7 hours at the airport

It was ok. It was expensive to check 2 bags ($75.00 per bag), and then it took a long time to wait for shuttle to take us from one terminal to the terminal where the plane was taking off at LAX. And all of this for a flight where we had to pay for any food or drink that was not water.

When I wanted to check in 3 hours prior to boarding time, the employees mentioned “a little over an hour delay” so I waited for an hour then I went to go look for food in the terminal and most people from that flight were in the same area looking for food. Finally I decided after food to check to see if it’s anytime closer and now it’s 2 mins until boarding closes?! What are you kidding me? I didn’t receive anything via sms about boarding now nor via email or on the intercom. I luckily made it through, barely, and then there’s no room for my carry on mind you I’m in the very first row so I had to place my purse in one further row back and my carry on sections down. Not sure who pays for better seats to get your stuff placed all over the plane but that was the worst experience I’ve ever had flying with anyone.

Inbound plane was on time and flight departed on time with no issues while boarding.

This airline sucks. They offer low rates then charge you for everything, the app does not work well, the seats are the most uncomfortable. Maintenance issues on the flight, and you still have to sit through their credit card commercials. People are nice enough but does not make up for overall poor experience.

After boarding and un-boarding twice over 6+hours, the flight was canceled.

Cancelled flight after I arrived at airport after 75 min drive and parking. Next flight was 4 days in the future. Had to scramble and buy a much more expensive flight on another carrier.

The Boarding process in Denver was chaotic, and since the line was so long, we were lined up very far from the gate. If there were any announcements from the gate staff, we didn't hear them. The flight attendants were spectacular. The only negative part of the flight was sitting by a 2 1/2 year old who was unruly and unfortunately had parents that matched his behaviors. Also, the restaurants in Denver on the E concourse, they didn't have food (passengers could only order 1 item on the entire menu) or the restaurants had 12-14 people waiting for orders to be prepared and another 6 people waiting to order. If you have a layover in Denver and need to grab food, be prepared to visit the shops with pre-packaged sandwiches, or you can visit another concourse but it may take a while to transit throughout the airport.

I liked the turn-style feature at gate 209B at LAX. Very efficient process. The gate staff also made several, clearly directed announcements so I felt very informed.

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

Information on your arrival and departure airports