Route guide · 2,451 miles
Cheap Flights from Baltimore to San Francisco
BWI → SFO · Nonstop 5h 29m · Live round-trip fares
Flying from Baltimore to San Francisco doesn't have to drain your wallet. This 2,451-mile hop takes about 5h 29m nonstop, and fares swing a lot depending on the week you pick. Travelers who book roughly 4–8 weeks out usually come out ahead — set a free alert and let the deals come to you.
Live fares for BWI → SFO are updating. Use the search below for real-time prices.
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Updated daily
Flight time
5h 29m
Nonstop, typical
Distance
2,451 mi
BWI → SFO
Book ahead
4–8 weeks
Best window, typically
Nonstop airlines
1
United Airlines
Nonstop flights from Baltimore to San Francisco
Want to skip the layover? Nonstops from Baltimore to San Francisco are flown by United Airlines, getting you there in about 5h 29m. For the lowest fares, book around 4–8 weeks before departure — last-minute nonstops on this route rarely come cheap.
Booking insights: Baltimore → San Francisco
- Distance: 2,451 miles · nonstop flight time: 5h 29m.
- Cheapest upcoming week in the live data starts around Oct 15, with fares from $268.
- Rule of thumb for this route: the sweet spot is usually 4–8 weeks before departure.
- Midweek departures (Tue–Thu) are consistently cheaper than weekend flights.
- Set a free Airfare Deal alert instead of checking daily — the best fares can sell out in hours.
Cheapest month · Baltimore → San Francisco
October 2026
Every date's recent round-trip fare, at a glance.
Fares from
$268
Cheapest: Mon, Oct 19 — $268 · Priciest: Oct 16 — $289
Get this fare →Recent fares found for specific dates in October 2026. Blank days had no recent fare in our data — ask our team and we'll check them for you.
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Flying from Baltimore to San Francisco: what you need to know
The flight
Baltimore to San Francisco is a transcontinental trip — 2,451 miles, roughly 5h 29m nonstop. Eastbound flights benefit from tailwinds and run shorter; westbound trips home fight headwinds and take longer, so pad your plans accordingly. Red-eyes are popular eastbound: you trade a short night of sleep for a full first day at your destination.
Airlines on this route
United Airlines flies this route nonstop. That matters more than it sounds: the cheapest fare on one carrier is rarely the same product as the cheapest on another. Checked-bag fees, free seat selection and change rules all differ, so compare the full trip cost before you pick a winner. See our airline guides for exactly what each carrier charges — then send an enquiry and we'll confirm the all-in price for your dates.
Leaving from Baltimore (BWI)
Plan to be at the airport two hours before a domestic departure — ninety minutes can work at smaller airports outside peak times, but security lines are the one variable you can't control. If you're checking a bag, add time rather than cutting it close. Our Baltimore airport guide covers terminals, parking and ground transport so you can plan the trip to the airport, not just the flight.
Arriving in San Francisco (SFO)
Before you land, know how you're getting from the airport to where you're staying — it's the part of the trip people forget to plan. The San Francisco airport guide lays out your ground options, from transit and shuttles to rideshares and rental cars. Flying back the other way? Check San Francisco to Baltimore fares — prices on the return direction often move on a different rhythm.
When to book
For a trip of 2,451 miles, booking 4–8 weeks ahead typically lands you in the sweet spot. Leave it to the final two weeks and prices usually climb as the cheapest seats sell out. If your dates are flexible, midweek departures are where the lower fares hide on most domestic routes.
Good to know before you go
- Nonstop time on this route is about 5h 29m — a one-stop itinerary needs to be a lot cheaper to be worth the extra hours.
- Tuesday and Wednesday departures are typically the cheapest days on domestic routes.
- Screenshot your fare before you enquire — prices move, and a saved fare helps our team match or beat it.
- Flexible dates? Search a few days either side — one day can change the fare a lot.
- Morning flights are delayed less often than evening ones — earlier departures have the best on-time record.
Baltimore to San Francisco flight FAQs
How long is the flight from BWI to SFO?
Plan on about 5h 29m in the air for a nonstop from Baltimore to San Francisco — the route runs roughly 2,451 miles. Connecting flights typically add 2–4 hours.
Are there nonstop flights from Baltimore to San Francisco?
Yes — look for United Airlines on this route. Nonstop seats are usually priced best 4–8 weeks before departure.
What is the cheapest month to fly from Baltimore to San Francisco?
Fares from Baltimore to San Francisco tend to ease outside the peak summer and holiday rush — the late-summer and early-fall shoulder weeks are usually kinder on the wallet. Set a free Airfare Deal alert and we'll flag the dips for your dates.
How much are last minute flights from BWI to SFO?
Last-minute flights from BWI to SFO (booked within 7 days of departure) typically cost noticeably more than fares booked 4–8 weeks out. Booking early is the smarter move.
What is a good round-trip deal from Baltimore to San Francisco?
A good deal is anything at or below the recent fares shown above. Set a free Airfare Deal alert and we'll ping you the moment fares drop.
Which airlines fly from Baltimore to San Francisco?
The main carriers on this route are United Airlines. Comparing all of them on the live search below usually surfaces the lowest fare for your dates.
How early should I get to Baltimore airport for this flight?
Plan on two hours before departure for a domestic flight — ninety minutes can work at smaller airports outside peak times. If you're checking a bag, earlier is better; the bag-drop line, not the flight, is what runs late.
Do the cheapest fares on this route include a checked bag?
Usually not. Basic economy fares on most airlines include a carry-on but charge extra for checked bags, and seat selection can cost more too. Add up the real total before comparing — a slightly higher regular fare sometimes works out cheaper. Our team confirms the full breakdown with you before you pay.
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