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Cheap flights from Baltimore to San Francisco from £135

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 18/9. Fares are subject to change and may not be available on all flights or dates of travel.
BWI — SFO
13 Sep — 20 Sep1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Baltimore to San Francisco

Enter your travel dates to find the best prices.

Cheapest flights from Baltimore to San Francisco
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 14 August 2026.

Tue 1/908:55 -
Nonstop5h 40m
Wed 30/922:30 -
Nonstop5h 05m
Deal found 10/8£239
Wed 11/1117:50 -
1 stop9h 05m
Mon 16/1106:00 -
2 stops8h 35m
Deal found 10/8£240
Sat 5/915:05 -
1 stop9h 25m
Tue 8/923:05 -
1 stop9h 30m
Deal found 10/8£241
Sat 5/915:05 -
1 stop9h 25m
Fri 11/922:30 -
Nonstop5h 05m
Deal found 11/8£242
Wed 2/910:50 -
2 stops9h 30m
Sat 12/905:00 -
2 stops12h 25m
Deal found 10/8£243
Thu 12/1116:00 -
2 stops10h 20m
Mon 16/1111:35 -
1 stop7h 10m
Deal found 10/8£245
Thu 12/1115:10 -
2 stops11h 10m
Sat 14/1110:05 -
2 stops10h 30m
Deal found 11/8£248
Sun 6/909:50 -
1 stop11h 30m
Wed 9/906:35 -
2 stops10h 50m
Deal found 9/8£249

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 14 August 2026.

Round-trip from

£239

One-way from

£135

Popular in

May

Cheapest in

April

Average price

£351
Southwest
  • Southwest
  • 1/9-30/9
  • Nonstop
  • 10h 45m total
  • Baltimore to San Francisco
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Frontier
  • Frontier
  • 18/9
  • 2 total stops
  • 23h 59m total
  • Baltimore to San Francisco
Search Deals
Highest demand for flights based on searches. 0% potential increase in price (£0 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 0% potential price decrease (£3 potential savings vs. average return price).
Search Deals
Average for round-trip flights in August 2026
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Cheapflights Fare Finder

 
Customise 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 858,174 searches. Data last updated 14 August 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

Cheapest return flight

BaltimoreSan Francisco

BWI Baltimore/Washington - SFO San Francisco

BWISFO

Baltimore/Washington

Wed 23/12

16:40-23:30

1 stop9h 50m

San Francisco

Tue 5/1

21:25-05:30

Nonstop5h 05m

£296

BaltimoreSan Francisco

BWI Baltimore/Washington - SFO San Francisco

BWISFO

Baltimore/Washington

Mon 23/11

08:00-11:10

Nonstop6h 10m

San Francisco

Tue 24/11

21:30-05:43

Nonstop5h 13m

£304

BaltimoreSan Francisco

BWI Baltimore/Washington - SFO San Francisco

BWISFO

Baltimore/Washington

Wed 28/10

08:00-11:10

Nonstop6h 10m

San Francisco

Tue 3/11

00:45-11:40

1 stop7h 55m

£305

BaltimoreSan Francisco

BWI Baltimore/Washington - SFO San Francisco

BWISFO

Baltimore/Washington

Wed 7/10

08:05-10:56

Nonstop5h 51m

San Francisco

Mon 12/10

23:30-10:30

1 stop8h 00m

£309

BaltimoreSan Francisco

BWI Baltimore/Washington - SFO San Francisco

BWISFO

Baltimore/Washington

Tue 6/10

17:05-23:35

2 stops9h 30m

San Francisco

Mon 12/10

12:05-00:50

2 stops9h 45m

£311
Fastest return journey

BaltimoreSan Francisco

BWI Baltimore/Washington - SFO San Francisco

BWISFO

Baltimore/Washington

Thu 24/9

10:20-13:00

Nonstop5h 40m

San Francisco

Mon 28/9

22:30-06:35

Nonstop5h 05m

£334

BaltimoreSan Francisco

BWI Baltimore/Washington - SFO San Francisco

BWISFO

Baltimore/Washington

Thu 10/9

16:10-21:55

2 stops8h 45m

San Francisco

Sun 13/9

10:05-23:50

2 stops10h 45m

£344

BaltimoreSan Francisco

BWI Baltimore/Washington - SFO San Francisco

BWISFO

Baltimore/Washington

Fri 2/10

18:50-21:41

Nonstop5h 51m

San Francisco

Sat 3/10

09:09-17:34

Nonstop5h 25m

£345

BaltimoreSan Francisco

BWI Baltimore/Washington - SFO San Francisco

BWISFO

Baltimore/Washington

Fri 25/9

17:40-21:55

1 stop7h 15m

San Francisco

Sun 27/9

22:30-06:35

Nonstop5h 05m

£354

BaltimoreSan Francisco

BWI Baltimore/Washington - SFO San Francisco

BWISFO

Baltimore/Washington

Mon 23/11

10:35-13:45

Nonstop6h 10m

San Francisco

Mon 23/11

21:25-05:30

Nonstop5h 05m

£361

Flights are sorted by cheapest return flights first.

Deals found on 14/8

Showing 1-10 of 22 resultsSorted by cheapest first
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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.
Estimated return 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?

To ensure you get the cheapest price possible for a flight from Baltimore to San Francisco, you should look to book at least 40 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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 £320). Flying from Baltimore to San Francisco in May is currently the most expensive (average of £398). 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 14 August 2026.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Baltimore to San Francisco as you normally would.

How much does it cost for a return flight from Baltimore to San Francisco?

Airfare is below average for this route at the moment.

Baltimore to San Francisco flights typically cost between £278 and £444 in September.
The cheapest return price found within the last 5 days was £239 on Southwest (1 Sept–30 Sept).

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.

  • How popular is this Baltimore to San Francisco flight route?

    Within the past month, 4 users have taken a look at flights from Baltimore/Washington to San Francisco.

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

    For as low as £252, Southwest can have you in San Francisco from Baltimore in 5h 45m. Baltimore and San Francisco are separated by a distance of 2449 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • What are the most reliable airlines from Baltimore to San Francisco?

    The top 3 most reliable airlines when flying from Baltimore to San Francisco are ANA (89%), Southwest (56%) and Virgin Australia (54%).

  • Can I find deals for flights from Baltimore to San Francisco that include hotel bookings?

    Yes. In addition to deals on Baltimore to San Francisco flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Baltimore to San Francisco?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Baltimore to San Francisco.

  • Can I find deals for business class flights from Baltimore to San Francisco?

    Yes. Cheapflights offers flight deals from Baltimore to San Francisco by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • 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 £320). Flying from Baltimore to San Francisco in May is currently the most expensive (average of £398). 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.

See more FAQs

Travelling to a place near San Francisco?

Book flights to San Francisco if you plan to visit one of these locations
Santa Cruz
San Bruno
Roseville
Newark
Bodega Bay
Sunnyvale
South San Francisco

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How does Cheapflights help users find flights from Baltimore to San Francisco?

Cheapflights helps you search for flights from Baltimore to San Francisco via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Why should you use Cheapflights to find cheap flight tickets from Baltimore to San Francisco?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Baltimore to San Francisco.

Can Cheapflights find flights from Baltimore to San Francisco with no change fees?

Yes! Cheapflights helps users easily find flights from Baltimore to San Francisco with no change fees.

Can Cheapflights notify me if prices for flights from Baltimore to San Francisco become cheaper?

Not ready to book yet? You can track prices for flights from Baltimore to San Francisco on Cheapflights with our Price Alert feature and get notified when better prices are available.

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