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Cheap Flights from San Juan (SJUA) to San Francisco (SFO)

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      Travellers and cabin class, 1 Adult, Economy

      Compare San Juan 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 San Juan to San Francisco International

      Looking for a cheap last-minute deal or the best return flight from San Juan to San Francisco International Airport? If you want to travel next month, return fares start from $495. Find the lowest prices on one-way and return tickets right here.
      San Francisco.$495 per passenger.Departing Wed, 7 Oct, returning Tue, 13 Oct.Return flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from San Juan Luis Munoz Marin on Wed, 7 Oct, arriving in San Francisco International.Inbound indirect flight with Frontier Airlines, departs from San Francisco International on Tue, 13 Oct, arriving in San Juan Luis Munoz Marin.Price includes taxes and charges.From $495, select.
      San Francisco.$623 per passenger.Departing Fri, 25 Sep, returning Tue, 29 Sep.Return flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from San Juan Luis Munoz Marin on Fri, 25 Sep, arriving in San Francisco International.Inbound indirect flight with Frontier Airlines, departs from San Francisco International on Tue, 29 Sep, arriving in San Juan Luis Munoz Marin.Price includes taxes and charges.From $623, select.
      San Francisco.$736 per passenger.Departing Tue, 22 Dec, returning Tue, 5 Jan.Return flight with Delta.Outbound indirect flight with Delta, departs from San Juan Luis Munoz Marin on Tue, 22 Dec, arriving in San Francisco International.Inbound indirect flight with Delta, departs from San Francisco International on Tue, 5 Jan, arriving in San Juan Luis Munoz Marin.Price includes taxes and charges.From $736, select.
      San Francisco.$736 per passenger.Departing Fri, 6 Nov, returning Sun, 15 Nov.Return flight with Delta.Outbound indirect flight with Delta, departs from San Juan Luis Munoz Marin on Fri, 6 Nov, arriving in San Francisco International.Inbound indirect flight with Delta, departs from San Francisco International on Sun, 15 Nov, arriving in San Juan Luis Munoz Marin.Price includes taxes and charges.From $736, select.
      San Francisco.$740 per passenger.Departing Fri, 4 Dec, returning Sun, 6 Dec.Return flight with Southwest Airlines.Outbound indirect flight with Southwest Airlines, departs from San Juan Luis Munoz Marin on Fri, 4 Dec, arriving in San Francisco International.Inbound indirect flight with Southwest Airlines, departs from San Francisco International on Sun, 6 Dec, arriving in San Juan Luis Munoz Marin.Price includes taxes and charges.From $740, select.
      San Francisco.$766 per passenger.Departing Fri, 22 Jan, returning Sun, 24 Jan.Return flight with Delta.Outbound indirect flight with Delta, departs from San Juan Luis Munoz Marin on Fri, 22 Jan, arriving in San Francisco International.Inbound indirect flight with Delta, departs from San Francisco International on Sun, 24 Jan, arriving in San Juan Luis Munoz Marin.Price includes taxes and charges.From $766, select.
      San Francisco.$767 per passenger.Departing Mon, 2 Nov, returning Sat, 5 Dec.Return flight with Delta.Outbound indirect flight with Delta, departs from San Juan Luis Munoz Marin on Mon, 2 Nov, arriving in San Francisco International.Inbound indirect flight with Delta, departs from San Francisco International on Sat, 5 Dec, arriving in San Juan Luis Munoz Marin.Price includes taxes and charges.From $767, select.
      San Francisco.$767 per passenger.Departing Tue, 27 Oct, returning Mon, 7 Dec.Return flight with Delta.Outbound indirect flight with Delta, departs from San Juan Luis Munoz Marin on Tue, 27 Oct, arriving in San Francisco International.Inbound indirect flight with Delta, departs from San Francisco International on Mon, 7 Dec, arriving in San Juan Luis Munoz Marin.Price includes taxes and charges.From $767, select.
      San Francisco.$841 per passenger.Departing Mon, 21 Sep, returning Tue, 20 Oct.Return flight with Southwest Airlines.Outbound indirect flight with Southwest Airlines, departs from San Juan Luis Munoz Marin on Mon, 21 Sep, arriving in San Francisco International.Inbound indirect flight with Southwest Airlines, departs from San Francisco International on Tue, 20 Oct, arriving in San Juan Luis Munoz Marin.Price includes taxes and charges.From $841, select.
      San Francisco.$863 per passenger.Departing Fri, 23 Oct, returning Fri, 6 Nov.Return flight with United.Outbound indirect flight with United, departs from San Juan Luis Munoz Marin on Fri, 23 Oct, arriving in San Francisco International.Inbound indirect flight with United, departs from San Francisco International on Fri, 6 Nov, arriving in San Juan Luis Munoz Marin.Price includes taxes and charges.From $863, select.
      San Francisco.$893 per passenger.Departing Tue, 9 Mar, returning Tue, 23 Mar.Return flight with United.Outbound indirect flight with United, departs from San Juan Luis Munoz Marin on Tue, 9 Mar, arriving in San Francisco International.Inbound indirect flight with United, departs from San Francisco International on Tue, 23 Mar, arriving in San Juan Luis Munoz Marin.Price includes taxes and charges.From $893, select.
      San Francisco.$893 per passenger.Departing Tue, 20 Apr, returning Tue, 4 May.Return flight with United.Outbound indirect flight with United, departs from San Juan Luis Munoz Marin on Tue, 20 Apr, arriving in San Francisco International.Inbound indirect flight with United, departs from San Francisco International on Tue, 4 May, arriving in San Juan Luis Munoz Marin.Price includes taxes and charges.From $893, select.
      San Francisco.$900 per passenger.Departing Thu, 8 Apr, returning Tue, 13 Apr.Return flight with United.Outbound indirect flight with United, departs from San Juan Luis Munoz Marin on Thu, 8 Apr, arriving in San Francisco International.Inbound indirect flight with United, departs from San Francisco International on Tue, 13 Apr, arriving in San Juan Luis Munoz Marin.Price includes taxes and charges.From $900, select.
      San Francisco.$908 per passenger.Departing Thu, 10 Jun, returning Sun, 13 Jun.Return flight with United.Outbound indirect flight with United, departs from San Juan Luis Munoz Marin on Thu, 10 Jun, arriving in San Francisco International.Inbound indirect flight with United, departs from San Francisco International on Sun, 13 Jun, arriving in San Juan Luis Munoz Marin.Price includes taxes and charges.From $908, select.
      How did we find these deals? The deals you see here are the lowest prices for flight tickets from San Juan to San Francisco International found in the last 4 days, and are subject to change and availability.

      Find the cheapest month to fly from San Juan to San Francisco International

      We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like San Juan to San Francisco International flights are currently cheapest in October.
      Sep
      from $623
      Oct
      from $495
      Nov
      from $736
      Dec
      from $740
      Jan
      from $766
      Feb
      Find prices
      Mar
      from $893
      Apr
      from $900
      May
      Find prices
      Jun
      from $908
      Jul
      Find prices
      Aug
      Find prices

      San Juan to San Francisco International: Alternative routes

      Compare routes from San Juan 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 $495
      Search flights

      Oakland Metropolitan Oak

      19km from central San Francisco
      from $738
      Search flights

      Concord

      40km from central San Francisco
      Search flights

      San Jose International

      63km from central San Francisco
      from $662
      Search flights

      San Jose Reid-Hillview

      72km from central San Francisco
      Search flights

      Santa Rosa

      88km from central San Francisco
      Search flights

      San Juan to San Francisco: Flight information

      The things to know before you go.
      Cheapest flight found$495
      Cheapest month to flyOctober

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

      The best price we found for a return flight from San Juan to San Francisco International is $495. 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.
      Currently, there are no airlines that fly direct from San Juan to San Francisco International. But we found flights with one stop from $495.
      As of September 2026, there are no flights flying from San Juan to San Francisco International.
      The cheapest month to fly from San Juan to San Francisco International is usually October.
      After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from San Juan to San Francisco International Airport on Wednesday, 7 October 2026.
      No airlines currently offer direct flights between San Juan and San Francisco International Airport. Most routes have one or more stops.
      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.

      The cheapest airline that flies to San Francisco International is Frontier Airlines .

      Travelling from San Juan to San Francisco International Airport (SFO): What you need to know

      • San Francisco is four hours behind San Juan. San Francisco International Airport is located in San Francisco, which is in the UTC-8 timezone.

      • Get to the airport on time so you don't miss your flight from San Juan to SFO. Be there at least two hours ahead for international flights and an hour early for domestic departures to prevent a last-minute sprint to your gate.

      • Flying during a popular month like March? Public holidays and other popular seasons can lead to longer queues and delays at security. Play things extra safe and arrive up to four hours before an international flight and two hours before domestic departures.

      Airports in San Juan

      Luis Munoz Marin International Airport (SJU)

      • A stopover is the ideal opportunity to take a travel break and perhaps even explore another city. When browsing cheap flights from San Juan to SFO departing from Luis Munoz Marin International Airport (SJU), uncheck the 'Direct flights only' box to find out where you can stop along the way. Your journey might pause in:

        • Denver International Airport (DEN)

        • Houston George Bush Intercontinental Airport (IAH)

        • Orlando International Airport (MCO)

      • Travelling from central San Juan to SJU takes around 1 hour by public transport. If you ride-share, drive or grab a taxi, you'll cover the 11 kilometres in 20 minutes or so, depending on traffic.

      • Catching an early flight from San Juan to San Francisco International Airport? Avoid the last-minute rush to the terminal (and catch some extra z's) by picking one of these stays near Luis Munoz Marin International Airport:

      • Luis Munoz Marin International Airport has a strong on-time performance, so flight disruptions are less likely. Departures from SJU arrive on schedule 81% of the time.

      About San Francisco International Airport (SFO)

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

      • Central San Francisco is around 21 kilometres from San Francisco International Airport and takes about 25 minutes to reach by car. See what your options are for getting into town, whether that's with a taxi, car hire or ride-share.

      • It typically takes 35 minutes to get there using public transport.

      How to find the cheapest flights from San Juan to San Francisco International Airport (SFO)

      • The lowest price we've found for a one-way ticket from San Juan to San Francisco International Airport is $248. For a return flight on this route, the best price is $495. Depending on the availability when you book, these fares may change.

      • To pick up cheap flights from San Juan to SFO, book ahead. Airlines usually offer lower fares when flights are first released.

      • If you can be flexible with your travel dates, try using the 'Whole month' tool. It'll give you the lowest price in every month when searching for your San Juan to San Francisco International Airport ticket.

      • There's no need to search every day to find out if prices have dropped when you set up a Price Alert. We'll notify you the moment a better deal comes up on plane tickets from San Juan to SFO.

      • Filters make it easier to dig up a deal for your flight from San Juan to San Francisco International Airport. Pick the departure times, airlines and number of stops that look good to you. Then sort the results by 'Cheapest' to find the most affordable option fast.

      The best time to fly from San Juan to San Francisco International Airport (SFO)

      • Think about the kind of holiday you want when picking your flight dates. December is the quietest month to go to San Francisco. July is when most people book flights from San Juan to San Francisco International Airport (SFO), which may be ideal if you'd rather travel when it's busy.

      • The warmest month in San Francisco is September, with temperatures ranging between 12ºC (54ºF) and 24ºC (75ºF). Lock in your San Juan to SFO plane ticket then if that's your idea of comfortable weather.

      • For cooler conditions, look for a cheap ticket from San Juan to San Francisco International Airport in January when temperatures are between 5ºC (41ºF) and 16ºC (61ºF).

      More about San Francisco

      Explore more of the United States

      • San Francisco has plenty going for it, but there are so many other parts of the United States just waiting to be discovered. Around 257 kilometres east of San Francisco, a visit to Fresno will keep you on the move. Start with leading sights like Forestiere Underground Gardens, Shinzen Japanese Garden and Fresno Chaffee Zoo.

      • Sacramento is another favourite destination in the United States and is around 129 kilometres northeast of San Francisco. No trip is complete without dropping by California State Railroad Museum, Old Sacramento State Historic Park and Crocker Art Museum.

      Plan smart, explore more

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