ISP - SFO

$170 Find Cheap Flights from Islip to San Francisco - Compare and Save

1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$389
Typical prices: $482-$673
Southwest
Sun 12/9Sun 12/16
ISP - SFO • 1 stop
Cheapest one-way
$170
Typical prices: $255-$727
Southwest
Sun 12/16
ISP - SFO • 2 stops
Nonstop flights
Not available
There are currently no direct flights between Islip and San Francisco. You'll need to take a connecting flight to reach the destination.
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Cheap Flights from Islip to San Francisco (ISP-SFO)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Islip to San Francisco

Wed, Dec 9 - Wed, Dec 16
Southwest Logo
6:05 am - 1:50 pmISP  Islip Long Island-SFO San Francisco
10h 45m1 stop Baltimore/Washington
Southwest Logo
7:00 am - 9:45 pmSFO  San Francisco-ISP Islip Long Island
11h 45m2 stops Las Vegas Harry Reid Intl Baltimore/Washington
$389Southwest
Wed, Jan 20 - Wed, Jan 27
Southwest Logo
5:45 am - 2:00 pmISP  Islip Long Island-SFO San Francisco
11h 15m1 stop Baltimore/Washington
Southwest Logo
11:10 am - 9:30 pmSFO  San Francisco-ISP Islip Long Island
7h 20m1 stop Baltimore/Washington
$399Southwest
Wed, Jan 20 - Wed, Jan 27
Southwest Logo
5:45 am - 2:00 pmISP  Islip Long Island-SFO San Francisco
11h 15m1 stop Baltimore/Washington
Southwest Logo
6:20 am - 9:30 pmSFO  San Francisco-ISP Islip Long Island
12h 10m2 stops Chicago Midway Baltimore/Washington
$404Southwest
Wed, Jan 20 - Wed, Jan 27
Southwest Logo
5:45 am - 2:10 pmISP  Islip Long Island-SFO San Francisco
11h 25m2 stops Baltimore/Washington Los Angeles
Southwest Logo
8:40 am - 9:30 pmSFO  San Francisco-ISP Islip Long Island
9h 50m2 stops Los Angeles Baltimore/Washington
$409Southwest
Sun, Jan 10 - Fri, Jan 15
Southwest Logo
5:45 am - 2:15 pmISP  Islip Long Island-SFO San Francisco
11h 30m2 stops Baltimore/Washington Denver Intl
Southwest Logo
10:00 am - 11:40 pmSFO  San Francisco-ISP Islip Long Island
10h 40m2 stops Los Angeles Baltimore/Washington
$446Southwest
Sun, Jan 10 - Fri, Jan 15
Southwest Logo
5:45 am - 2:15 pmISP  Islip Long Island-SFO San Francisco
11h 30m2 stops Baltimore/Washington Denver Intl
Southwest Logo
9:15 pm - 12:00 pmSFO  San Francisco-ISP Islip Long Island
11h 45m1 stop Baltimore/Washington
$447Southwest
Fri, Dec 4 - Mon, Dec 7
Southwest Logo
12:30 pm - 9:25 pmISP  Islip Long Island-SFO San Francisco
11h 55m2 stops Baltimore/Washington Las Vegas Harry Reid Intl
Southwest Logo
9:25 pm - 11:45 amSFO  San Francisco-ISP Islip Long Island
11h 20m1 stop Baltimore/Washington
$476Southwest
Fri, Dec 4 - Mon, Dec 7
Southwest Logo
6:05 am - 1:50 pmISP  Islip Long Island-SFO San Francisco
10h 45m1 stop Baltimore/Washington
Southwest Logo
9:25 pm - 11:45 amSFO  San Francisco-ISP Islip Long Island
11h 20m1 stop Baltimore/Washington
$484Southwest
Sun, Jan 10 - Fri, Jan 15
Southwest Logo
5:45 am - 2:00 pmISP  Islip Long Island-SFO San Francisco
11h 15m1 stop Baltimore/Washington
Southwest Logo
9:15 pm - 12:00 pmSFO  San Francisco-ISP Islip Long Island
11h 45m1 stop Baltimore/Washington
$499Southwest
Fri, Dec 4 - Mon, Dec 7
Southwest Logo
12:30 pm - 9:25 pmISP  Islip Long Island-SFO San Francisco
11h 55m2 stops Baltimore/Washington Las Vegas Harry Reid Intl
Southwest Logo
8:00 am - 9:45 pmSFO  San Francisco-ISP Islip Long Island
10h 45m2 stops Denver Intl Baltimore/Washington
$505Southwest
Booking Insights

Price, demand and travel trends for Islip to San Francisco flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

How much is a round-trip flight from Islip to San Francisco?

Round-trip flights from Islip to San Francisco typically range from $482 to $673. The lowest price found in the past 5 days was $389, on Southwest.

Find deals

Key details for Islip to San Francisco flights

Cheapest flight

$170
One-way flight from Islip to San Francisco

When to book flights from Islip to San Francisco

Are your dates flexible? Find out the best times to travel from Islip to San Francisco based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

Your Islip to San Francisco flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines and booking tips.

  • What cabin classes can I book on flights from Islip to San Francisco?

    Only Economy Class is available on flights from Islip to San Francisco.

  • How long is a flight from Islip to San Francisco?

    A nonstop flight from Islip to San Francisco takes 00m, covering 2,611 miles.

  • Do I need a passport to fly from Islip to San Francisco?

    No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID or another TSA-accepted form of identification.

  • Have flight prices from Islip to San Francisco changed much recently?

    Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $389 to $1,766. That means the highest observed fare was about 5x higher than the lowest one.

  • How are flight prices from Islip to San Francisco looking right now?

    One-way fares from Islip to San Francisco are currently lower than usual. Average one-way flight prices are about $265, which is 44% below the typical average for this route.

  • What car rental options are available at San Francisco Airport (SFO)?

    San Francisco Airport (SFO) hosts 5 major car rental companies, with daily rates averaging $63 for economy cars. Top options include:

    • Europcar
    • Thrifty
    • Dollar
    • Hertz
    • Fox

  • Which airports can I use when flying from Islip to San Francisco?

    Flights from Islip to San Francisco usually depart from Islip Long Island (ISP) and arrive at San Francisco (SFO).

  • Which airports do connecting flights from Islip to San Francisco pass through?

    Most connecting flights from Islip to San Francisco pass through Baltimore/Washington (BWI), which handles 100% of one-stop traffic on this route.

  • Can I save money by using flexible dates for flights from Islip to San Francisco?

    Yes. Flexible dates can save you up to 55% on flights from Islip to San Francisco. Friday is the cheapest departure day at $482 round-trip on average, while Tuesday is the most expensive at $1,066, a difference of $584.

    KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • What is the time difference between Islip and San Francisco?

    San Francisco is 3 hours behind Islip (Pacific Time vs Eastern Time). Plan for the time shift when scheduling connections or first-day activities.

  • What popular places can I visit in San Francisco?

    Some of the most popular sights in San Francisco are Fisherman's Wharf, Union Square and Moscone Center. These are among the most viewed places in San Francisco on KAYAK.

Your guide to booking Islip to San Francisco flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates are flexible, aim for a Friday departure and avoid flying on Tuesday. On this route, Friday flights average $482, about $584 less than Tuesday fares (55% savings) based on the last 12 months.
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to San Francisco Airport.

    • Grand Hyatt At Sfo

More options for your flight from Islip to San Francisco

Complete your trip to San Francisco with a hotel stay or car rental

Car rentals in San Francisco
Hotels in San Francisco
Vacations in San Francisco