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237 € Cheap Flights from Baltimore Washington International to San Francisco International

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      Travellers and cabin class, 1 Adult, Economy
      Southwest Airlines
      United
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      Air New Zealand
      ANA (All Nippon Airways)

      Compare Baltimore Washington International to San Francisco International flight deals

      Find the cheapest month or even day of the year to fly to San Francisco International

      Book the best San Francisco International fare with no extra fees

      Flight deals from Baltimore Washington International to San Francisco International

      Looking for a cheap last-minute deal or the best return flight from Baltimore Washington International Airport to San Francisco International Airport? If you want to travel next month, return fares start from 239 €. Find the lowest prices on one-way and return tickets right here.
      San Francisco.237 € per passenger.Departing Mon, 26 Oct, returning Mon, 2 Nov.Return flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Baltimore Washington International on Mon, 26 Oct, arriving in San Francisco International.Inbound indirect flight with Frontier Airlines, departs from San Francisco International on Mon, 2 Nov, arriving in Baltimore Washington International.Price includes taxes and charges.From 237 €, select.
      San Francisco.239 € per passenger.Departing Sat, 14 Nov, returning Sat, 14 Nov.Return flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Baltimore Washington International on Sat, 14 Nov, arriving in San Francisco International.Inbound indirect flight with Frontier Airlines, departs from San Francisco International on Sat, 14 Nov, arriving in Baltimore Washington International.Price includes taxes and charges.From 239 €, select.
      San Francisco.239 € per passenger.Departing Mon, 28 Sep, returning Wed, 30 Sep.Return flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Baltimore Washington International on Mon, 28 Sep, arriving in San Francisco International.Inbound indirect flight with Frontier Airlines, departs from San Francisco International on Wed, 30 Sep, arriving in Baltimore Washington International.Price includes taxes and charges.From 239 €, select.
      San Francisco.239 € per passenger.Departing Thu, 15 Oct, returning Thu, 15 Oct.Return flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Baltimore Washington International on Thu, 15 Oct, arriving in San Francisco International.Inbound indirect flight with Frontier Airlines, departs from San Francisco International on Thu, 15 Oct, arriving in Baltimore Washington International.Price includes taxes and charges.From 239 €, select.
      San Francisco.240 € per passenger.Departing Wed, 30 Sep, returning Sat, 3 Oct.Return flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Baltimore Washington International on Wed, 30 Sep, arriving in San Francisco International.Inbound indirect flight with Frontier Airlines, departs from San Francisco International on Sat, 3 Oct, arriving in Baltimore Washington International.Price includes taxes and charges.From 240 €, select.
      San Francisco.275 € per passenger.Departing Sat, 5 Dec, returning Tue, 15 Dec.Return flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Baltimore Washington International on Sat, 5 Dec, arriving in San Francisco International.Inbound indirect flight with Frontier Airlines, departs from San Francisco International on Tue, 15 Dec, arriving in Baltimore Washington International.Price includes taxes and charges.From 275 €, select.
      San Francisco.306 € per passenger.Departing Thu, 4 Feb, returning Mon, 8 Feb.Return flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from Baltimore Washington International on Thu, 4 Feb, arriving in San Francisco International.Inbound direct flight with Southwest Airlines departs from San Francisco International on Mon, 8 Feb, arriving in Baltimore Washington International.Price includes taxes and charges.From 306 €, select.
      San Francisco.306 € per passenger.Departing Thu, 3 Dec, returning Mon, 7 Dec.Return flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from Baltimore Washington International on Thu, 3 Dec, arriving in San Francisco International.Inbound direct flight with Southwest Airlines departs from San Francisco International on Mon, 7 Dec, arriving in Baltimore Washington International.Price includes taxes and charges.From 306 €, select.
      San Francisco.306 € per passenger.Departing Wed, 13 Jan, returning Wed, 20 Jan.Return flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from Baltimore Washington International on Wed, 13 Jan, arriving in San Francisco International.Inbound direct flight with Southwest Airlines departs from San Francisco International on Wed, 20 Jan, arriving in Baltimore Washington International.Price includes taxes and charges.From 306 €, select.
      San Francisco.307 € per passenger.Departing Sat, 26 Sep, returning Mon, 5 Oct.Return flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from Baltimore Washington International on Sat, 26 Sep, arriving in San Francisco International.Inbound direct flight with Southwest Airlines departs from San Francisco International on Mon, 5 Oct, arriving in Baltimore Washington International.Price includes taxes and charges.From 307 €, select.
      San Francisco.307 € per passenger.Departing Thu, 29 Oct, returning Wed, 4 Nov.Return flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from Baltimore Washington International on Thu, 29 Oct, arriving in San Francisco International.Inbound direct flight with Southwest Airlines departs from San Francisco International on Wed, 4 Nov, arriving in Baltimore Washington International.Price includes taxes and charges.From 307 €, select.
      San Francisco.307 € per passenger.Departing Thu, 5 Nov, returning Sat, 7 Nov.Return flight with United.Outbound direct flight with United departs from Baltimore Washington International on Thu, 5 Nov, arriving in San Francisco International.Inbound direct flight with United departs from San Francisco International on Sat, 7 Nov, arriving in Baltimore Washington International.Price includes taxes and charges.From 307 €, select.
      San Francisco.308 € per passenger.Departing Sat, 3 Oct, returning Mon, 5 Oct.Return flight with United.Outbound direct flight with United departs from Baltimore Washington International on Sat, 3 Oct, arriving in San Francisco International.Inbound direct flight with United departs from San Francisco International on Mon, 5 Oct, arriving in Baltimore Washington International.Price includes taxes and charges.From 308 €, select.
      San Francisco.308 € per passenger.Departing Tue, 29 Sep, returning Wed, 30 Sep.Return flight with United.Outbound direct flight with United departs from Baltimore Washington International on Tue, 29 Sep, arriving in San Francisco International.Inbound direct flight with United departs from San Francisco International on Wed, 30 Sep, arriving in Baltimore Washington International.Price includes taxes and charges.From 308 €, select.
      San Francisco.308 € per passenger.Departing Sat, 30 Jan, returning Sat, 6 Feb.Return flight with United.Outbound direct flight with United departs from Baltimore Washington International on Sat, 30 Jan, arriving in San Francisco International.Inbound direct flight with United departs from San Francisco International on Sat, 6 Feb, arriving in Baltimore Washington International.Price includes taxes and charges.From 308 €, select.
      San Francisco.316 € per passenger.Departing Thu, 26 Nov, returning Wed, 2 Dec.Return flight with Southwest Airlines.Outbound indirect flight with Southwest Airlines, departs from Baltimore Washington International on Thu, 26 Nov, arriving in San Francisco International.Inbound indirect flight with Southwest Airlines, departs from San Francisco International on Wed, 2 Dec, arriving in Baltimore Washington International.Price includes taxes and charges.From 316 €, select.

      Find the cheapest month to fly from Baltimore Washington International to San Francisco International

      We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Baltimore Washington International to San Francisco International flights are currently cheapest in September.
      Sep
      from 239 €
      Oct
      from 239 €
      Nov
      from 239 €
      Dec
      from 275 €
      Jan
      from 306 €
      Feb
      from 306 €
      Mar
      from 379 €
      Apr
      from 411 €
      May
      from 436 €
      Jun
      from 432 €
      Jul
      from 453 €
      Aug
      Find prices

      Direct flights from Baltimore Washington International to San Francisco International

      Air New Zealand
      ANA (All Nippon Airways)
      Southwest Airlines
      United
      Virgin Australia

      Baltimore Washington International to San Francisco International: Alternative routes

      Compare routes from Baltimore Washington International to San Francisco below. You may find an airport to fly into that's cheaper, faster, or easier than San Francisco International.

      San Francisco International

      18km from central San Francisco
      ClosestCheapest
      from 237 €
      Search flights

      Oakland Metropolitan Oak

      19km from central San Francisco
      from 277 €
      Search flights

      Concord

      40km from central San Francisco
      Search flights

      San Jose International

      63km from central San Francisco
      from 258 €
      Search flights

      San Jose Reid-Hillview

      72km from central San Francisco
      Search flights

      Santa Rosa

      88km from central San Francisco
      from 347 €
      Search flights

      Washington D.C. to San Francisco: Flight information

      The things to know before you go.
      Cheapest flight found237 €
      Cheapest month to flyOctober
      Average flight time6 hrs, 1 min
      Most popular airlineSouthwest Airlines
      Average flights per week56

      Finding cheap flights from Baltimore Washington International to San Francisco International: Frequently asked questions

      The best price we found for a return flight from Baltimore Washington International to San Francisco International is 237 €. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
      6 hours and 1 minute is the average flight time from Baltimore Washington International to San Francisco International.
      Southwest Airlines, United and Virgin Australia fly direct from Baltimore Washington International to San Francisco International.
      As of September 2026, there are 56 flights per week flying from Baltimore Washington International to San Francisco International.
      The cheapest month to fly from Baltimore Washington International to San Francisco International is usually October.
      After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Baltimore Washington International Airport to San Francisco International Airport on Monday, 26 October 2026.
      Yes – the average flight time is 6 hours and 1 minute.
      We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to San Francisco International but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.

      We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to San Francisco is around 40 days in advance, so don’t leave your flight to the last minute.

      Currently, Frontier Airlines and Southwest Airlines offer the cheapest flight tickets to San Francisco International.

      Travelling from Baltimore Washington International Airport (BWI) to San Francisco International Airport (SFO): what you need to know

      • The average duration of a direct flight from Baltimore Washington International Airport to San Francisco International Airport is 5 hours 50 minutes.

      • San Francisco's timezone is UTC-8, which makes San Francisco three hours behind Washington DC.

      • Flights from BWI to SFO start at 06:15 — the first with United Airlines. The last departure is at 20:10 with Southwest Airlines. In total, you can choose from 18 weekly Baltimore Washington International Airport to San Francisco International Airport flights.

      • Your BWI to SFO flight won't wait if you're late, so be at the airport on time. Arrive up to one hour in advance for domestic flights and two hours ahead for international travel.

      • Travelling during a peak month such as July? School holidays and other popular seasons can result in longer queues and delays at check-in and security. Be extra cautious and get there up to four hours ahead of international flights and two hours before domestic departures.

      • United offers direct flights from Baltimore Washington International Airport to San Francisco International Airport. Book with this popular airline, then get ready to tick off the sights in San Francisco — and maybe even more of the United States if your schedule allows.

      • United is the top choice for travellers on this route.

      • United ranks as the top on-time carrier for BWI to SFO flights, with 86.24% of services landing as scheduled.

      • If you want to split up your journey, just deselect 'Direct flights only' when searching for your ticket from Baltimore Washington International Airport to San Francisco International Airport. Here are the top stopovers between BWI and SFO:

        • Denver International Airport

        • Minneapolis St Paul Airport

        • Harry Reid International Airport

      How to find the cheapest flights from Baltimore Washington International Airport (BWI) to San Francisco International Airport (SFO)

      • The cheapest price we've found for a one-way Baltimore Washington International Airport to San Francisco International Airport flight is 117 €. A return ticket is currently 237 €. Depending on the availability and when you book, these fares may change.

      • It's usually smart to book ahead of time if you want to get cheap tickets from BWI to SFO. That's because flight prices are based on demand, which tends to increase closer to departure.

      • May is the cheapest month for flights from Baltimore Washington International Airport to San Francisco International Airport. If you're looking to travel at a different time of year, the 'Whole month' tool will show you the lowest prices across every month.

      • Picking up cheap flights from BWI to SFO is a piece of cake with Price Alerts. Simply set up one of these automatic alerts and we'll notify you as soon as fares go down.

      • Lock in the right flight for you by using the filters. To see the 'Cheapest,' 'Best' or 'Fastest' flights from Baltimore Washington International Airport to San Francisco International Airport, use the 'Sort by' function. You can also filter by airline, arrival and departure times, and number of stops.

      Handy information about Baltimore Washington International Airport (BWI)

      • Of all flights leaving Baltimore Washington International Airport, 77% land on schedule at their destination.

      • To get to Baltimore Washington International Airport from central Washington DC, it takes about 40 minutes if you're going by car. Of course, this depends on traffic conditions. It's approximately 48 kilometres from the airport to the city centre.

      • The trip on public transport will take about 50 minutes.

      • Get your break off to a stress-free start by staying near BWI. Whether you're catching an early flight from Baltimore Washington International Airport to San Francisco International Airport or want to avoid feeling rushed, these stays are ideal:

      Arriving at San Francisco International Airport (SFO)

      Getting from San Francisco International Airport (SFO) to central San Francisco

      • From San Francisco International Airport, San Francisco is approximately 21 kilometres away. It takes around 25 minutes to get to the centre driving.

      • Travelling to the centre by public transport takes roughly 35 minutes.

      When to fly to San Francisco International Airport (SFO)

      • July is the most popular month for flights from Baltimore Washington International Airport to San Francisco International Airport. To avoid the crowds, visit San Francisco in March.

      • The warmest month in San Francisco is September, with temperatures ranging between 12ºC (54ºF) and 24ºC (75ºF). Lock in your flights from Baltimore Washington International Airport to San Francisco International Airport in this month if this is the kind of weather you like.

      • If you want to travel in cooler conditions, search for a cheap ticket from BWI to SFO in January. Temperatures average between 5ºC (41ºF) and 16ºC (61ºF) then.

      Explore more of the United States

      • San Francisco has plenty to offer, but there are so many other parts of the United States just waiting to be discovered. Around 64 kilometres south-east of San Francisco, a visit to San Jose will keep your itinerary packed. Start with attractions like Winchester Mystery House, The Tech Interactive and Santa Clara Valley.

      • Fresno is another essential stop in the United States and is around 257 kilometres south-east of San Francisco. No journey is complete without a visit to Forestiere Underground Gardens, Shinzen Japanese Garden and Fresno Chaffee Zoo.

      More travel options

      Prices shown on this page are estimated lowest prices only. Found in the last 12 days.