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Cheap flights from San Francisco to New York from $149

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from San Francisco to New York departing on 2/4. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from San Francisco to New York

Cheap round-trip flights

Frontier Logo
3:09 pm - 10:37 amSFO-ISP
16h 28m2 stops
Frontier Logo
9:47 pm - 4:00 pmISP-SFO
21h 13m2 stops
$267Frontier
Find Deal
Thu, Oct 23 - Sun, Oct 26
Frontier Logo
7:07 pm - 9:04 amSFO-ISP
10h 57m2 stops
Frontier Logo
5:05 pm - 8:15 amISP-SFO
18h 10m2 stops
$285Frontier
Find Deal
Thu, Oct 2 - Sat, Oct 4
JetBlue Logo
9:44 pm - 1:02 pmSFO-ISP
12h 18m1 stop
JetBlue Logo
1:57 pm - 11:31 pmISP-SFO
12h 34m1 stop
$297JetBlue
Find Deal
Wed, Oct 29 - Tue, Nov 4
JetBlue Logo
9:44 pm - 1:02 pmSFO-ISP
12h 18m1 stop
JetBlue Logo
4:25 pm - 11:31 pmISP-SFO
10h 06m1 stop
$352JetBlue
Find Deal
Fri, Oct 31 - Wed, Nov 5
Multiple Airlines Logo
7:00 am - 8:42 pmSFO-ISP
10h 42m1 stop
Multiple Airlines Logo
9:37 pm - 10:53 pmISP-SFO
28h 16m1 stop
$384Multiple Airlines
Find Deal
Tue, Oct 14 - Tue, Oct 21
Southwest Logo
9:05 pm - 12:25 pmSFO-ISP
12h 20m1 stop
Southwest Logo
11:40 am - 8:25 pmISP-SFO
11h 45m2 stops
$403Southwest
Find Deal
Tue, Oct 14 - Tue, Oct 21
Southwest Logo
9:25 pm - 12:50 pmSFO-ISP
12h 25m1 stop
Southwest Logo
6:00 am - 1:25 pmISP-SFO
10h 25m1 stop
$428Southwest
Find Deal
Sun, Jan 4 - Thu, Jan 8
Breeze Airways Logo
12:50 pm - 8:07 pmSFO-ISP
28h 17m2 stops
Breeze Airways Logo
8:47 pm - 12:05 pmISP-SFO
18h 18m2 stops
$653Breeze Airways
Find Deal
Thu, Oct 30 - Mon, Nov 3
Breeze Airways Logo
12:50 pm - 8:07 pmSFO-ISP
28h 17m2 stops
Breeze Airways Logo
7:36 pm - 12:02 pmISP-SFO
19h 26m3 stops
$659Breeze Airways
Find Deal
Thu, Oct 30 - Sun, Nov 2
Multiple Airlines Logo
11:05 pm - 7:45 pmSFO-ISP
17h 40m2 stops
Multiple Airlines Logo
9:59 am - 1:34 pmISP-SFO
30h 35m3 stops
$921Multiple Airlines
Find Deal
Sun, Jan 4 - Thu, Jan 8

Frontier flights from San Francisco to Islip

Our best Frontier deals on San Francisco to Islip flight tickets
Frontier
Oct 23
SFO3:09 pmSan Francisco
16h 28m
2 stops
ISP10:37 amIslip Long Island
Oct 26
ISP9:47 pmIslip Long Island
21h 13m
2 stops
SFO4:00 pmSan Francisco
$267
Find similar
Frontier
Oct 2
SFO7:07 pmSan Francisco
10h 57m
2 stops
ISP9:04 amIslip Long Island
Oct 4
ISP5:05 pmIslip Long Island
18h 10m
2 stops
SFO8:15 amSan Francisco
$285
Find similar
Frontier
Sep 29
SFO7:07 pmSan Francisco
12h 33m
2 stops
ISP10:40 amIslip Long Island
Oct 2
ISP11:40 amIslip Long Island
14h 22m
2 stops
SFO11:02 pmSan Francisco
$290
Find similar

JetBlue flights from San Francisco to Islip

Our best JetBlue deals on San Francisco to Islip flight tickets
JetBlue
Oct 29
SFO9:44 pmSan Francisco
12h 18m
1 stop
ISP1:02 pmIslip Long Island
Nov 4
ISP1:57 pmIslip Long Island
12h 34m
1 stop
SFO11:31 pmSan Francisco
$297
Find similar
JetBlue
Oct 31
SFO9:44 pmSan Francisco
12h 18m
1 stop
ISP1:02 pmIslip Long Island
Nov 5
ISP4:25 pmIslip Long Island
10h 06m
1 stop
SFO11:31 pmSan Francisco
$352
Find similar
JetBlue
Oct 30
SFO9:44 pmSan Francisco
12h 27m
1 stop
ISP1:11 pmIslip Long Island
Nov 5
ISP4:25 pmIslip Long Island
10h 06m
1 stop
SFO11:31 pmSan Francisco
$400
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from San Francisco to Islip 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, momondo users made 832,500 searches. Data last updated September 17, 2025.
Use the filters below to find and compare flights from San Francisco to Islip that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

San FranciscoIslip

SFO - ISP

SFOISP

San Francisco

Thu 10/23

3:09 pm-10:37 am

2 stops16h 28m

Islip Long Island

Sun 10/26

9:47 pm-4:00 pm

2 stops21h 13m

$267

San FranciscoIslip

SFO - ISP

SFOISP

San Francisco

Thu 10/2

7:07 pm-9:04 am

2 stops10h 57m

Islip Long Island

Sat 10/4

5:05 pm-8:15 am

2 stops18h 10m

$285

San FranciscoIslip

SFO - ISP

SFOISP

San Francisco

Wed 10/29

9:44 pm-1:02 pm

1 stop12h 18m

Islip Long Island

Tue 11/4

1:57 pm-11:31 pm

1 stop12h 34m

$297

San FranciscoIslip

SFO - ISP

SFOISP

San Francisco

Fri 10/31

9:44 pm-1:02 pm

1 stop12h 18m

Islip Long Island

Wed 11/5

4:25 pm-11:31 pm

1 stop10h 06m

$352

San FranciscoIslip

SFO - ISP

SFOISP

San Francisco

Tue 10/14

7:00 am-8:42 pm

1 stop10h 42m

Islip Long Island

Tue 10/21

9:37 pm-10:53 pm

1 stop28h 16m

$384

San FranciscoIslip

SFO - ISP

SFOISP

San Francisco

Tue 10/14

9:05 pm-12:25 pm

1 stop12h 20m

Islip Long Island

Tue 10/21

11:40 am-8:25 pm

2 stops11h 45m

$403

San FranciscoIslip

SFO - ISP

SFOISP

San Francisco

Sun 1/4

9:25 pm-12:50 pm

1 stop12h 25m

Islip Long Island

Thu 1/8

6:00 am-1:25 pm

1 stop10h 25m

$428

San FranciscoIslip

SFO - ISP

SFOISP

San Francisco

Thu 10/30

12:50 pm-8:07 pm

2 stops28h 17m

Islip Long Island

Mon 11/3

8:47 pm-12:05 pm

2 stops18h 18m

$653

San FranciscoIslip

SFO - ISP

SFOISP

San Francisco

Thu 10/30

12:50 pm-8:07 pm

2 stops28h 17m

Islip Long Island

Sun 11/2

7:36 pm-12:02 pm

3 stops19h 26m

$659

San FranciscoIslip

SFO - ISP

SFOISP

San Francisco

Sun 1/4

11:05 pm-7:45 pm

2 stops17h 40m

Islip Long Island

Thu 1/8

9:59 am-1:34 pm

3 stops30h 35m

$921

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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How to get the cheapest flight ticket from San Francisco to Islip

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest day to depart on your flight to Islip?

On average, the least expensive day to fly to Islip from San Francisco is on a Thursday. momondo users have found tickets for Thursday departures for as low as $276. However, this price may fluctuate depending on the airline, the season, and holidays. Flights from San Francisco to Islip on a Wednesday will generally be more expensive and average around $398. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Islip?

Flying to Islip from San Francisco at noon is the least expensive time of day to depart. momondo users have found prices as low as $321 when looking at flights departing at noon. Flights in the evening are often more expensive with an average ticket price of $488.

When to book flights from San Francisco to Islip

Are you open to changing your travel dates? Check out the ideal times to fly from San Francisco to Islip according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap San Francisco to Islip (SFO to ISP) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from San Francisco to Islip

Direct flights

None
There are no direct flights from San Francisco to Islip. There are no popular flight routes from San Francisco to Islip.
Search flight deals

  • How far is San Francisco to Islip Long Island by plane?

    The distance between San Francisco and Islip Long Island is about 2603.7 mi. 9h 45m is a normal flight duration for this route.

  • When did momondo last update prices for flights from San Francisco Airport to Islip Long Island Airport?

    Prices for flights from San Francisco Airport to Islip Long Island Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from San Francisco Airport to Islip Long Island Airport?

  • How old do you have to be to fly from San Francisco Airport to Islip Long Island Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from San Francisco Airport to Islip Long Island Airport.

  • What documentation or ID do you need to fly to Islip Long Island Airport?

    The travel and health documents required for your trip to Islip Long Island Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Islip Long Island Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular airline from San Francisco to Islip?

Best airlines flying from San Francisco to Islip

Compare and see reviews for airlines that fly from San Francisco to Islip with momondo
Airline
Rating
Free Cancellation
Price
SouthwestPriceFrom $318Free CancellationRating
8.0
4,242 reviews
Search Southwest flights

Traveling to a place near New York?

Book flights to New York if you plan to visit one of these locations
Montauk
Riverhead
Sag Harbor
Southampton
Amagansett

Why use momondo?

Why should I use momondo to find a flight deal from San Francisco to Islip?

It is quick and easy to find San Francisco to Islip flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Islip that suits you.

Can I find flights from San Francisco to Islip with flexible booking policies on momondo?

momondo does allow users to show only those flights to Islip from San Francisco which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from San Francisco to Islip?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Islip from San Francisco.

I’m not ready to book a flight from San Francisco to Islip right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Islip from San Francisco. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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