$179+ 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 9/12. Fares are subject to change and may not be available on all flights or dates of travel.
BWI — SFO
Sep 19 — Sep 261
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Find cheap flights from Baltimore to San Francisco with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheapflights Tip: The best prices from Baltimore/Washington to San Francisco are usually found in April or October, booked 41 days in advance, depart on a Thursday or Friday and return on a Wednesday
Cheap flight deals from Baltimore to San Francisco
Cheapest
Best
Last-minute
One-way
Cheapest flights from Baltimore to San FranciscoExplore 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 August 20, 2026.
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 August 20, 2026.
This Kiwi.com deal was found by Cheapflights users on 8/18. 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.
Tue 9/229:25 pm -
2 stops29h 49m
Sun 9/2711:58 pm -
1 stop9h 02m
Deal found 8/18![Frontier logo]()
$328
This Kiwi.com deal was found by Cheapflights users on 8/18. 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.
Sun 9/136:00 am -
2 stops31h 22m
Fri 9/1811:58 pm -
1 stop8h 42m
Deal found 8/18![Frontier logo]()
$329
This Kiwi.com deal was found by Cheapflights users on 8/18. 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.
Fri 11/612:10 pm -
2 stops15h 05m
Mon 11/910:48 pm -
1 stop14h 24m
Deal found 8/18![Frontier logo]()
$330
This Super.com deal was found by Cheapflights users on 8/20. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/58:45 am -
1 stop13h 18m
Wed 9/2310:05 pm -
1 stop8h 20m
Deal found 8/20![Frontier logo]()
$331
This CheapOair deal was found by Cheapflights users on 8/18. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/184:00 pm -
1 stop10h 17m
Mon 9/2110:05 pm -
1 stop8h 20m
Deal found 8/18![Multiple Airlines logo]()
$332
This Kiwi.com deal was found by Cheapflights users on 8/19. 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 11/115:42 pm -
2 stops19h 29m
Sun 11/1510:17 pm -
1 stop23h 16m
Deal found 8/19![Frontier logo]()
$333
This Expedia deal was found by Cheapflights users on 8/18. 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.
Thu 10/225:40 am -
1 stop15h 15m
Sun 10/2510:14 pm -
1 stop8h 13m
Deal found 8/18![Frontier logo]()
$334
This Kiwi.com deal was found by Cheapflights users on 8/16. 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.
Tue 9/88:45 am -
1 stop13h 18m
Thu 9/1712:07 pm -
2 stops31h 57m
Deal found 8/16![Frontier logo]()
$335
This Kiwi.com deal was found by Cheapflights users on 8/19. 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.
Sat 9/58:45 am -
1 stop13h 18m
Tue 9/88:23 pm -
2 stops12h 17m
Deal found 8/19![Frontier logo]()
$336
This Trip.com deal was found by Cheapflights users on 8/19. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/101:29 pm -
1 stop11h 59m
Thu 9/1711:58 pm -
1 stop9h 02m
Deal found 8/19![Frontier logo]()
$337
This Expedia deal was found by Cheapflights users on 8/18. 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.
Tue 9/87:15 pm -
1 stop17h 22m
Fri 9/1811:58 pm -
1 stop8h 42m
Deal found 8/18![Multiple Airlines logo]()
$339
Best flights from Baltimore to San FranciscoDiscover carefully curated flight deals from Baltimore to San Francisco that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 20, 2026.
Discover carefully curated flight deals from Baltimore to San Francisco that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 20, 2026.
This Southwest deal was found by Cheapflights users on 8/19. 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.
Tue 10/136:15 am -
1 stop10h 40m
Mon 10/199:35 pm -
Nonstop5h 10m
Deal found 8/19![Southwest logo]()
$367
This United Airlines deal was found by Cheapflights users on 8/17. 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.
Wed 9/167:00 am -
1 stop9h 12m
Sat 9/269:09 am -
Nonstop5h 30m
Deal found 8/17![United Airlines logo]()
$367
This Delta deal was found by Cheapflights users on 8/15. 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 10/292:11 pm -
1 stop10h 28m
Sat 10/318:00 am -
1 stop9h 19m
Deal found 8/15![Delta logo]()
$377
This Southwest deal was found by Cheapflights users on 8/16. 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 9/308:55 am -
Nonstop5h 40m
Wed 10/71:25 pm -
1 stop6h 55m
Deal found 8/16![Southwest logo]()
$367
This Delta deal was found by Cheapflights users on 8/19. 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.
Mon 11/24:45 pm -
1 stop9h 14m
Wed 11/111:32 pm -
1 stop6h 31m
Deal found 8/19![Delta logo]()
$377
This Southwest deal was found by Cheapflights users on 8/18. 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.
Mon 10/266:35 am -
1 stop7h 15m
Fri 10/309:35 pm -
Nonstop5h 10m
Deal found 8/18![Southwest logo]()
$393
This United Airlines deal was found by Cheapflights users on 8/18. 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 9/178:00 am -
Nonstop5h 58m
Sun 9/2012:45 am -
1 stop8h 00m
Deal found 8/18![United Airlines logo]()
$473
This Southwest deal was found by Cheapflights users on 8/16. 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.
Tue 9/298:55 am -
Nonstop5h 40m
Tue 10/69:35 pm -
Nonstop5h 10m
Deal found 8/16![Southwest logo]()
$410
This Southwest deal was found by Cheapflights users on 8/17. 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.
Thu 9/1010:20 am -
Nonstop5h 40m
Wed 9/165:40 am -
1 stop9h 45m
Deal found 8/17![Southwest logo]()
$419
This Southwest deal was found by Cheapflights users on 8/15. 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.
Thu 10/226:35 am -
1 stop7h 15m
Sun 10/259:35 pm -
Nonstop5h 10m
Deal found 8/15![Southwest logo]()
$447
This Southwest deal was found by Cheapflights users on 8/19. 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 9/308:30 am -
1 stop7h 45m
Sun 10/49:35 pm -
Nonstop5h 10m
Deal found 8/19![Southwest logo]()
$447
This Southwest deal was found by Cheapflights users on 8/19. 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.
Fri 10/96:20 pm -
1 stop7h 50m
Mon 10/129:35 pm -
Nonstop5h 10m
Deal found 8/19![Southwest logo]()
$473
Last-minute flights from Baltimore to San FranciscoDiscover last-minute flight deals from Baltimore to San Francisco. Data last updated August 20, 2026 and is based on user searches.
Discover last-minute flight deals from Baltimore to San Francisco. Data last updated August 20, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 8/18. 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.
Tue 9/16:45 am -
1 stop15h 18m
Tue 9/88:23 pm -
2 stops34h 02m
Deal found 8/18![Frontier logo]()
$334
This Kiwi.com deal was found by Cheapflights users on 8/19. 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 9/22:25 pm -
1 stop11h 29m
Tue 9/88:23 pm -
2 stops34h 02m
Deal found 8/19![Frontier logo]()
$333
This Super.com deal was found by Cheapflights users on 8/20. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/58:45 am -
1 stop13h 18m
Wed 9/2310:05 pm -
1 stop8h 20m
Deal found 8/20![Frontier logo]()
$331
This Kiwi.com deal was found by Cheapflights users on 8/19. 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.
Sat 9/58:45 am -
1 stop13h 18m
Tue 9/88:23 pm -
2 stops12h 17m
Deal found 8/19![Frontier logo]()
$336
This Kiwi.com deal was found by Cheapflights users on 8/16. 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.
Tue 9/88:45 am -
1 stop13h 18m
Thu 9/1712:07 pm -
2 stops31h 57m
Deal found 8/16![Frontier logo]()
$335
This Expedia deal was found by Cheapflights users on 8/18. 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.
Tue 9/87:15 pm -
1 stop17h 22m
Fri 9/1811:58 pm -
1 stop8h 42m
Deal found 8/18![Multiple Airlines logo]()
$339
This Kiwi.com deal was found by Cheapflights users on 8/17. 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.
Tue 9/89:32 pm -
1 stop25h 36m
Fri 9/1110:05 pm -
1 stop8h 20m
Deal found 8/17![Frontier logo]()
$340
This Trip.com deal was found by Cheapflights users on 8/19. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/101:29 pm -
1 stop11h 59m
Thu 9/1711:58 pm -
1 stop9h 02m
Deal found 8/19![Frontier logo]()
$337
This Kiwi.com deal was found by Cheapflights users on 8/18. 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.
Sun 9/136:00 am -
2 stops31h 22m
Fri 9/1811:58 pm -
1 stop8h 42m
Deal found 8/18![Frontier logo]()
$329
This CheapOair deal was found by Cheapflights users on 8/18. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/184:00 pm -
1 stop10h 17m
Mon 9/2110:05 pm -
1 stop8h 20m
Deal found 8/18![Multiple Airlines logo]()
$332
This Kiwi.com deal was found by Cheapflights users on 8/18. 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.
Tue 9/229:25 pm -
2 stops29h 49m
Sun 9/2711:58 pm -
1 stop9h 02m
Deal found 8/18![Frontier logo]()
$328
One-way flights from Baltimore to San FranciscoSearch for one-way flight options from Baltimore to San Francisco. Find affordable one-way fares based on user searches. Data last updated August 20, 2026.
Search for one-way flight options from Baltimore to San Francisco. Find affordable one-way fares based on user searches. Data last updated August 20, 2026.
This Southwest deal was found by Cheapflights users on 8/18. 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.
Sat 9/128:10 am -
Nonstop5h 45m
Deal found 8/18![Southwest logo]()
$179
This Trip.com deal was found by Cheapflights users on 8/15. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/89:32 pm -
1 stop25h 36m
Deal found 8/15![Frontier logo]()
$180
This Kiwi.com deal was found by Cheapflights users on 8/16. 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.
Sun 9/136:22 pm -
2 stops40h 52m
Deal found 8/16![Frontier logo]()
$182
This Kiwi.com deal was found by Cheapflights users on 8/15. 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.
Sat 9/125:42 pm -
2 stops19h 40m
Deal found 8/15![Frontier logo]()
$183
This Kiwi.com deal was found by Cheapflights users on 8/15. 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.
Sat 10/39:25 pm -
2 stops40h 30m
Deal found 8/15![Frontier logo]()
$185
This Kiwi.com deal was found by Cheapflights users on 8/16. 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.
Mon 9/149:25 pm -
1 stop25h 43m
Deal found 8/16![Frontier logo]()
$186
This Kiwi.com deal was found by Cheapflights users on 8/15. 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.
Mon 9/216:00 am -
1 stop16h 48m
Deal found 8/15![Frontier logo]()
$187
This Southwest deal was found by Cheapflights users on 8/19. 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 9/910:55 am -
2 stops8h 30m
Deal found 8/19![Southwest logo]()
$189
This Kiwi.com deal was found by Cheapflights users on 8/17. 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.
Mon 9/77:52 pm -
2 stops39h 22m
Deal found 8/17![Frontier logo]()
$190
This Kiwi.com deal was found by Cheapflights users on 8/19. 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.
Tue 9/18:48 pm -
2 stops25h 15m
Deal found 8/19![Frontier logo]()
$191
Find 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 August 20, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $328 (Kiwi.com) |
One-way from | $179 (Southwest) |
Popular in | May |
Cheapest in | April |
Average price | $479 |
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 7,457,451 searches. Data last updated August 20, 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
Cheapest round-trip
BaltimoreSan Francisco
BWI Baltimore/Washington - SFO San Francisco
BWISFO
Baltimore/Washington
Tue 10/13
6:15 am-1:55 pm
1 stop10h 40m
San Francisco
Mon 10/19
9:35 pm-5:45 am
Nonstop5h 10m
$367
BaltimoreSan Francisco
BWI Baltimore/Washington - SFO San Francisco
BWISFO
Baltimore/Washington
Wed 9/16
7:00 am-1:12 pm
1 stop9h 12m
San Francisco
Sat 9/26
9:09 am-5:39 pm
Nonstop5h 30m
$367
BaltimoreSan Francisco
BWI Baltimore/Washington - SFO San Francisco
BWISFO
Baltimore/Washington
Wed 9/30
8:55 am-11:35 am
Nonstop5h 40m
San Francisco
Wed 10/7
1:25 pm-11:20 pm
1 stop6h 55m
$367
BaltimoreSan Francisco
BWI Baltimore/Washington - SFO San Francisco
BWISFO
Baltimore/Washington
Thu 10/29
2:11 pm-9:39 pm
1 stop10h 28m
San Francisco
Sat 10/31
8:00 am-8:19 pm
1 stop9h 19m
$377
BaltimoreSan Francisco
BWI Baltimore/Washington - SFO San Francisco
BWISFO
Baltimore/Washington
Mon 11/2
4:45 pm-10:59 pm
1 stop9h 14m
San Francisco
Wed 11/11
1:32 pm-11:03 pm
1 stop6h 31m
$377
BaltimoreSan Francisco
BWI Baltimore/Washington - SFO San Francisco
BWISFO
Baltimore/Washington
Mon 10/26
6:35 am-10:50 am
1 stop7h 15m
San Francisco
Fri 10/30
9:35 pm-5:45 am
Nonstop5h 10m
$393
Quickest round-trip
BaltimoreSan Francisco
BWI Baltimore/Washington - SFO San Francisco
BWISFO
Baltimore/Washington
Tue 9/29
8:55 am-11:35 am
Nonstop5h 40m
San Francisco
Tue 10/6
9:35 pm-5:45 am
Nonstop5h 10m
$410
BaltimoreSan Francisco
BWI Baltimore/Washington - SFO San Francisco
BWISFO
Baltimore/Washington
Thu 9/10
10:20 am-1:00 pm
Nonstop5h 40m
San Francisco
Wed 9/16
5:40 am-6:25 pm
1 stop9h 45m
$419
BaltimoreSan Francisco
BWI Baltimore/Washington - SFO San Francisco
BWISFO
Baltimore/Washington
Thu 10/22
6:35 am-10:50 am
1 stop7h 15m
San Francisco
Sun 10/25
9:35 pm-5:45 am
Nonstop5h 10m
$447
BaltimoreSan Francisco
BWI Baltimore/Washington - SFO San Francisco
BWISFO
Baltimore/Washington
Wed 9/30
8:30 am-1:15 pm
1 stop7h 45m
San Francisco
Sun 10/4
9:35 pm-5:45 am
Nonstop5h 10m
$447
Showing 1-10 of 23 resultsSorted by cheapest first
Compare providers for flights from Baltimore to San Francisco
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Baltimore to San Francisco in August.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Baltimore-San Francisco flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Baltimore-San Francisco flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Baltimore-San Francisco flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Baltimore-San Francisco flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Baltimore-San Francisco flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
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.
BWI-SFO
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?
The best time to book flights from Baltimore to San Francisco is 40 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, April is the cheapest month in which you can book a flight from Baltimore to San Francisco (average of $432). Flying from Baltimore to San Francisco in May is currently the most expensive (average of $537). 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 August 20, 2026.
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 afternoon tend to be the most expensive. A flight at noon could potentially save you up to 48% on airfare.
The best insider tips for Baltimore to San Francisco flights
AI-powered summary based on content written by travel experts. AI can make mistakes.
Cheapflights partnered with top experts to bring you the best recommendations for your Baltimore to San Francisco trip
Our travel experts
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 August 20, 2026.
Get a feel of what it's like to fly with Southwest,Delta, andUnited Airlines 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.
Crew
8.6
Overall
8.0
Food
7.0
Boarding
8.1
Comfort
8.0
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentDavid,Aug 2023
BWI - SAN
Crew
8.6
Overall
8.0
Food
7.0
Boarding
8.1
Comfort
8.0
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentDavid,Aug 2023
BWI - SAN
Crew
8.6
Overall
8.0
Food
7.0
Boarding
8.1
Comfort
8.0
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentDavid,Aug 2023
BWI - SAN
Crew
8.6
Overall
8.0
Food
7.0
Boarding
8.1
Comfort
8.0
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentDavid,Aug 2023
BWI - SAN
Crew
8.6
Overall
8.0
Food
7.0
Boarding
8.1
Comfort
8.0
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentDavid,Aug 2023
BWI - SAN
Crew
8.6
Overall
8.0
Food
7.0
Boarding
8.1
Comfort
8.0
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentDavid,Aug 2023
BWI - SAN
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.
Traveling to a place near San Francisco?
Book flights to San Francisco if you plan to visit one of these locationsSouth San Francisco
Santa Clara
Santa Cruz
Walnut Creek
San Bruno
Emeryville
Roseville
Burlingame
Rancho Cordova
Fairfield
Vallejo
Cupertino
Newark
Hayward
San Ramon
Redwood City
Manteca
San Carlos
Turlock
San Lorenzo
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes
Complete your trip
Flights by cabin class
Other flight options
Popular flights
San Francisco flight routes
Alternative routes for Baltimore to San Francisco
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to San Francisco by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Baltimore to San Francisco by cabin class
Find flights from Baltimore to San Francisco, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Baltimore and San Francisco flights
Browse other Baltimore and San Francisco flight options. Last updated on August 20, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Other flights to San Francisco
Explore flights to San Francisco departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on August 20, 2026.
Top 7 airlines flying from Baltimore to San Francisco
Discover the top 7 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 7,457,451 searches. Data last updated August 20, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$162 | Average$335 | FlexibilityNo cancel fee | On-time83% | |
| Cheapest$170 | Average$294 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$217 | Average$356 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$296 | Average$394 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$303 | Average$526 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$317 | Average$489 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$332 | Average$598 | FlexibilityNo cancel fee | On-time71% |