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Cheap flights from Baltimore to San Francisco from $170

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Baltimore to San Francisco departing on 3/12. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
8:39 pm - 9:55 pm
BWI
-
SFO
28h 16m
1 stop
Frontier Logo
8:58 am - 10:02 am
SFO
-
BWI
22h 04m
2 stops
$320Frontier
Fri, Feb 13 - Sat, Feb 21
Frontier Logo
1:05 pm - 7:14 pm
BWI
-
SFO
9h 09m
1 stop
Frontier Logo
11:16 pm - 10:13 am
SFO
-
BWI
7h 57m
1 stop
$321Frontier
Sat, Apr 11 - Sun, Apr 19
Multiple Airlines Logo
9:43 pm - 6:37 pm
BWI
-
SFO
23h 54m
2 stops
Multiple Airlines Logo
10:03 pm - 2:23 pm
SFO
-
BWI
13h 20m
1 stop
$322Multiple Airlines
Mon, Mar 30 - Tue, Apr 7
Frontier Logo
9:26 pm - 7:14 pm
BWI
-
SFO
24h 48m
1 stop
Frontier Logo
5:47 pm - 8:20 am
SFO
-
BWI
35h 33m
2 stops
$323Frontier
Thu, Apr 9 - Wed, Apr 29
Frontier Logo
6:00 am - 9:39 pm
BWI
-
SFO
18h 39m
1 stop
Frontier Logo
10:28 am - 12:31 am
SFO
-
BWI
11h 03m
2 stops
$324Frontier
Sun, Feb 22 - Fri, Feb 27
Frontier Logo
6:05 am - 7:14 pm
BWI
-
SFO
16h 09m
1 stop
Frontier Logo
5:47 pm - 8:20 am
SFO
-
BWI
35h 33m
2 stops
$325Frontier
Thu, Apr 9 - Wed, Apr 15
Frontier Logo
6:00 am - 5:58 pm
BWI
-
SFO
14h 58m
2 stops
Frontier Logo
10:58 pm - 5:47 pm
SFO
-
BWI
15h 49m
1 stop
$326Frontier
Sat, Feb 21 - Tue, Feb 24
Southwest Logo
8:10 am - 1:45 pm
BWI
-
SFO
8h 35m
1 stop
Southwest Logo
10:55 pm - 9:20 am
SFO
-
BWI
7h 25m
1 stop
$328Southwest
Wed, Mar 25 - Sat, Mar 28
Frontier Logo
6:00 pm - 4:54 pm
BWI
-
SFO
25h 54m
1 stop
Frontier Logo
11:16 pm - 8:12 am
SFO
-
BWI
29h 56m
2 stops
$329Frontier
Tue, Apr 21 - Fri, May 1
Frontier Logo
9:07 am - 4:54 pm
BWI
-
SFO
10h 47m
1 stop
Frontier Logo
9:33 pm - 11:31 am
SFO
-
BWI
34h 58m
2 stops
$330Frontier
Thu, Apr 16 - Sun, Apr 19

United Airlines flights from Baltimore to San Francisco

Our best United Airlines deals on Baltimore to San Francisco flight tickets
United Airlines
May 2
BWI6:00 amBaltimore/Washington
6h 10m
SFO9:10 amSan Francisco
May 11
SFO10:46 pmSan Francisco
5h 34m
BWI7:20 amBaltimore/Washington
$346
United Airlines
Feb 28
BWI6:26 pmBaltimore/Washington
6h 24m
SFO9:50 pmSan Francisco
Mar 6
SFO11:05 pmSan Francisco
5h 14m
BWI7:19 amBaltimore/Washington
$354
United Airlines
Apr 9
BWI5:50 pmBaltimore/Washington
9h 09m
1 stop
SFO11:59 pmSan Francisco
Apr 10
SFO12:45 amSan Francisco
7h 52m
1 stop
BWI11:37 amBaltimore/Washington
$361

Frontier flights from Baltimore to San Francisco

Our best Frontier deals on Baltimore to San Francisco flight tickets
Frontier
Feb 13
BWI8:39 pmBaltimore/Washington
28h 16m
1 stop
SFO9:55 pmSan Francisco
Feb 21
SFO8:58 amSan Francisco
22h 04m
2 stops
BWI10:02 amBaltimore/Washington
$320
Frontier
Apr 11
BWI1:05 pmBaltimore/Washington
9h 09m
1 stop
SFO7:14 pmSan Francisco
Apr 19
SFO11:16 pmSan Francisco
7h 57m
1 stop
BWI10:13 amBaltimore/Washington
$321
Frontier
Apr 9
BWI9:26 pmBaltimore/Washington
24h 48m
1 stop
SFO7:14 pmSan Francisco
Apr 29
SFO5:47 pmSan Francisco
35h 33m
2 stops
BWI8:20 amBaltimore/Washington
$323

momondo 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, momondo users made 832,500 searches. Data last updated February 3, 2026.
Use the filters below to find and compare flights from Baltimore to San Francisco that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

BaltimoreSan Francisco

BWI - SFO

BWISFO

Baltimore/Washington

Fri 2/13

8:39 pm-9:55 pm

1 stop28h 16m

San Francisco

Sat 2/21

8:58 am-10:02 am

2 stops22h 04m

$320

BaltimoreSan Francisco

BWI - SFO

BWISFO

Baltimore/Washington

Sat 4/11

1:05 pm-7:14 pm

1 stop9h 09m

San Francisco

Sun 4/19

11:16 pm-10:13 am

1 stop7h 57m

$321

BaltimoreSan Francisco

BWI - SFO

BWISFO

Baltimore/Washington

Mon 3/30

9:43 pm-6:37 pm

2 stops23h 54m

San Francisco

Tue 4/7

10:03 pm-2:23 pm

1 stop13h 20m

$322

BaltimoreSan Francisco

BWI - SFO

BWISFO

Baltimore/Washington

Thu 4/9

9:26 pm-7:14 pm

1 stop24h 48m

San Francisco

Wed 4/29

5:47 pm-8:20 am

2 stops35h 33m

$323

BaltimoreSan Francisco

BWI - SFO

BWISFO

Baltimore/Washington

Sun 2/22

6:00 am-9:39 pm

1 stop18h 39m

San Francisco

Fri 2/27

10:28 am-12:31 am

2 stops11h 03m

$324

BaltimoreSan Francisco

BWI - SFO

BWISFO

Baltimore/Washington

Thu 4/9

6:05 am-7:14 pm

1 stop16h 09m

San Francisco

Wed 4/15

5:47 pm-8:20 am

2 stops35h 33m

$325

BaltimoreSan Francisco

BWI - SFO

BWISFO

Baltimore/Washington

Sat 2/21

6:00 am-5:58 pm

2 stops14h 58m

San Francisco

Tue 2/24

10:58 pm-5:47 pm

1 stop15h 49m

$326

BaltimoreSan Francisco

BWI - SFO

BWISFO

Baltimore/Washington

Wed 3/25

8:10 am-1:45 pm

1 stop8h 35m

San Francisco

Sat 3/28

10:55 pm-9:20 am

1 stop7h 25m

$328

BaltimoreSan Francisco

BWI - SFO

BWISFO

Baltimore/Washington

Tue 4/21

6:00 pm-4:54 pm

1 stop25h 54m

San Francisco

Fri 5/1

11:16 pm-8:12 am

2 stops29h 56m

$329

BaltimoreSan Francisco

BWI - SFO

BWISFO

Baltimore/Washington

Thu 4/16

9:07 am-4:54 pm

1 stop10h 47m

San Francisco

Sun 4/19

9:33 pm-11:31 am

2 stops34h 58m

$330

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
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See travel insights to San Francisco from

How to get the cheapest flight ticket from Baltimore to San Francisco

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to San Francisco?

If you aren’t able to travel to San Francisco during the month of May, then flying in September is also cheap. Prices for this month can be found on momondo for an average of $417.

What is the cheapest day to depart on your flight to San Francisco?

The cheapest day to depart from Baltimore to San Francisco is on a Thursday when prices can be found for as low as $493. The most expensive day to fly to San Francisco is Sunday, with ticket prices averaging around $696.

What is the cheapest time of day to depart on your flight to San Francisco?

Our data shows that the cheapest Baltimore to San Francisco flights are usually those with departure times at noon. Our users have found flights to San Francisco at noon for as low as $488. Flights in the afternoon are often more expensive with an average ticket price of $612.

What is the cheapest Baltimore/Washington to San Francisco flight route?

Fly from Baltimore/Washington to San Francisco for the best Baltimore/Washington - San Francisco flight prices

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

You are more likely to see cheaper flights to San Francisco from Baltimore when booking weeks ahead of your departure date. In general, you can expect to find flights to San Francisco for around $464 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Francisco from Baltimore for as low as $352 on momondo.

What cabin class options are available on Baltimore/Washington to San Francisco flights?

There are 4 cabin classes available to choose from on Baltimore/Washington to San Francisco flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Baltimore to San Francisco flights?

You could potentially save up to 8% on your flight if you consider stops on a Baltimore to San Francisco flight.

How have Baltimore to San Francisco flight prices changed over time?

As of February 2026, prices for Baltimore to San Francisco flights are approximately 3% more expensive when compared to flights at the same time last year.

When to book flights from Baltimore to San Francisco

Are you open to changing your travel dates? Check out the ideal times to fly from Baltimore to San Francisco according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Baltimore to San Francisco (BWI to SFO) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Baltimore to San Francisco

Best Price Found

$243

Fastest flight time

5h 50m

Direct flights

Every day

Airports in San Francisco

1 airport
The best one-way flight to San Francisco from Baltimore in the past 72 hours is $243. The best round-trip flight deal from Baltimore to San Francisco found on momondo in the last 72 hours is $525.
The fastest flight from Baltimore to San Francisco takes 5h 50m
Direct flights go from Baltimore to San Francisco every day.
There is 1 airport in San Francisco. From Baltimore there are direct flights to San Francisco (SFO).
Search flight deals

  • How far is Baltimore/Washington to San Francisco by plane?

    The distance between Baltimore/Washington and San Francisco is about 2448.9 mi. A reasonable flight in good conditions will take 5h 50m.

  • When did momondo last update prices for flights from Baltimore/Washington Airport to San Francisco Airport?

    Prices for flights from Baltimore/Washington Airport to San Francisco Airport refresh daily.

  • How many operators does momondo search for flights from Baltimore/Washington Airport to San Francisco Airport?

  • How old do you have to be to fly from Baltimore/Washington Airport to San Francisco Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Baltimore/Washington Airport to San Francisco Airport.

  • What documentation or ID do you need to fly to San Francisco Airport?

    The required travel and health documents for your San Francisco Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at San Francisco Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular plane model from Baltimore to San Francisco?

  • What is the most popular airline from Baltimore to San Francisco?

Best airlines flying from Baltimore to San Francisco

Compare and see reviews for airlines that fly from Baltimore to San Francisco with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $105Free CancellationRating
5.7
3,051 reviews
Search Frontier flights
Sun Country AirPriceFrom $142Free CancellationRating
6.9
342 reviews
Search Sun Country Air flights
DeltaPriceFrom $253Free CancellationRating
7.9
8,139 reviews
Search Delta flights
United AirlinesPriceFrom $287Free CancellationRating
7.4
9,236 reviews
Search United Airlines flights
SouthwestPriceFrom $299Free CancellationRating
8.0
4,273 reviews
Search Southwest flights
American AirlinesPriceFrom $308Free CancellationRating
7.2
11,218 reviews
Search American Airlines flights
Alaska AirlinesPriceFrom $316Free CancellationRating
8.0
11,835 reviews
Search Alaska Airlines flights

  • Southwest Flights From Baltimore to San Francisco

    Southwest is one of the most popular airlines flying from Baltimore to San Francisco, operating 4 flights/week on average for this route. A good Southwest flight deal for Baltimore to San Francisco starts from $299 round-trip, up to an average price of $466. Our users have rated Southwest at 8.0/10.

  • United Airlines Flights From Baltimore to San Francisco

    $287 is the best United Airlines flight deal from Baltimore to San Francisco found on momondo over the last 72 hours. The average United Airlines ticket price found was closer to $495, however, with flight time and availability significantly affecting the price. United Airlines (7.4/10 from 9,235 user reviews) flies into San Francisco from Baltimore 2 times in an average week so prices can vary.

Traveling to a place near San Francisco?

Book flights to San Francisco if you plan to visit one of these locations
Santa Cruz
Carmel-by-the-Sea
Modesto
Sonoma
Bodega Bay
Roseville
Hayward
Calistoga
Santa Clara
Walnut Creek
Berkeley
Big Sur
Fremont
Half Moon Bay
Daly City
Salinas
Vallejo
Sunnyvale
Livermore
Turlock

Why use momondo?

Why should I use momondo to find a flight deal from Baltimore to San Francisco?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Baltimore to San Francisco. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Baltimore to San Francisco with flexible booking policies on momondo?

momondo does allow users to show only those flights to San Francisco from Baltimore which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Baltimore to San Francisco?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to San Francisco from Baltimore.

I’m not ready to book a flight from Baltimore to San Francisco right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Baltimore to San Francisco now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to San Francisco and let you know when they change.

An easier way to manage your San Francisco trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
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