Find Cheap Flights from Islip Long Island to San Francisco (ISP - SFO)

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FAQs for Booking Islip Long Island to San Francisco Flights

How long does a flight from Islip Long Island to San Francisco take?
An average nonstop flight takes 8h 22m, covering a distance of 2613 miles.
Which airlines provide the cheapest flights from Islip Long Island to San Francisco?
In the past 3 days, the cheapest round-trip tickets were found on Frontier ($227), Multiple Airlines ($233) and American Airlines ($254).
Do I need a passport to fly between Islip Long Island and San Francisco?
No.
What’s the cheapest day of the week to fly Islip Long Island to San Francisco?
For Islip Long Island to San Francisco, Wednesday is the cheapest day to fly on average and Sunday is the most expensive. Flying from San Francisco back to Islip Long Island, the best deals are generally found on Tuesday, with Monday being the most expensive.

Book cheap flights from Islip Long Island to San Francisco (round-trip)

Airports
Origin
Islip
$227
only
$227
Destination
San Francisco
$227
only
$227
Wed, Jan 31
ISP
SFO
11h 17m
Sun, Feb 4
SFO
ISP
41h 22m
Trip: 5 days
5.6OkayShow reviews
Overall 5.6 Okay
Based on 33009 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
PHX
CVG
Good 7.0

I liked that the staff was friendly and the tickets were affordable

I didn’t like that there was no complimentary food or beverage options.

PHL
PBI
Good 6.3

The plane was clean and we left on time with no delays or issues. The flight crew were very nice and there was also enough overhead space for everyone’s bags.

The lines are excessively long to check a bag, there was only 1 of 4 check in kiosks working, which created it’s own line. Also the carry on bag fee at the airport was incredibly steep.

PSP
DEN
Mediocre 3.3

My flight crew. Received call concerning my bag in Atlanta, although I was still in Denver.

Long line to check in, anxiety about missing flight Had to pay for my carry on Missed my connecting flight, announcements were not clear Was told I to pay a rebooking fee for a flight two days later Frontier does not offer stand by Spent $285 with another airline to get to Atlanta on time

MKE
LAS
Okay 5.6

The crew was most friendly and accommodating. Pilots very informative made a could be turbulent flight very smooth.

Seats are very uncomfortable had a bar straight across bottom of my back. Lack of food and beverages. The plane should always be stocked.

TPA
MKE
Good 6.3

The toilet was broken. Hour delay

Sat, Dec 16
ISP
SFO
8h 25m
Tue, Jan 30
SFO
ISP
16h 54m
Trip: 46 days
Overall 0.0 Poor
Based on 0 reviews
Sat, Jan 13
ISP
SFO
8h 29m
Sat, Jan 20
SFO
ISP
7h 57m
Trip: 8 days
7.2GoodShow reviews
Overall 7.2 Good
Based on 25376 reviews
Overall
7.3
Boarding
7.5
Comfort
7.1
Crew
7.8
Entertainment
6.7
Food
6.6
PBI
CLT
Mediocre 3.0

I know this isn’t Kayak’s issue but American Airlines literally forgot to put fuel into the plane. We were delayed for over an hour and luckily I made my connection in Charlotte but only because they held the flight and it was not full. Had it been full I would have lost my seat.

EWR
PHX
Okay 5.6

Got me to where I'm going safely. Crew was nice.

Flying is painful

LAX
DEN
Mediocre 2.0

Everything. Had to sleep overnight in airport and was late coming home.

GSP
PHL
Good 6.0

ON TIME AND VERY SMOOTH. EVEN EARLY! THANKS!

Very high decibel high pitched noise from engines as we taxied to gate in PHL. VERY annoying. Lasted over 5 minutes. ALSO, i didnt need to print out own boarding passes. You could fix your website check in px.

TPA
MIA
Okay 5.6

I liked the way the AA gate supervisor too charge of the problem and solved it, with great deal of personal imvolvement and follow up. Also check-in crew was very much the best. I would say that AA showed the best of passages care to me. Truly outstanding.

Because of a mixup, though not of AA doing, I was literally forgotten at the gate. However, AA personnel showed the very best of can-do attitude and got me home for Thanksgiving. I am very proud of everyone working at AA at the TPA airport.

Tue, Dec 19
ISP
SFO
9h 31m
Tue, Jan 23
SFO
ISP
16h 54m
Trip: 36 days
Overall 0.0 Poor
Based on 0 reviews
Fri, Dec 8
ISP
SFO
22h 29m
Tue, Jan 23
SFO
ISP
16h 54m
Trip: 47 days
5.6OkayShow reviews
Overall 5.6 Okay
Based on 33009 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
MKE
LAS
Okay 5.6

The crew was most friendly and accommodating. Pilots very informative made a could be turbulent flight very smooth.

Seats are very uncomfortable had a bar straight across bottom of my back. Lack of food and beverages. The plane should always be stocked.

MCO
ATL
Okay 5.3

The poor way they handle things when the system goes down

TPA
MKE
Good 6.3

The toilet was broken. Hour delay

MSP
DEN
Mediocre 2.0

We didn't make it to Vegas and they barely compensated us.

PSP
DEN
Mediocre 3.3

My flight crew. Received call concerning my bag in Atlanta, although I was still in Denver.

Long line to check in, anxiety about missing flight Had to pay for my carry on Missed my connecting flight, announcements were not clear Was told I to pay a rebooking fee for a flight two days later Frontier does not offer stand by Spent $285 with another airline to get to Atlanta on time

Wed, Dec 6
ISP
SFO
8h 22m
Tue, Jan 23
SFO
ISP
7h 57m
Trip: 49 days
7.2GoodShow reviews
Overall 7.2 Good
Based on 25376 reviews
Overall
7.3
Boarding
7.5
Comfort
7.1
Crew
7.8
Entertainment
6.7
Food
6.6
GSP
PHL
Good 6.0

ON TIME AND VERY SMOOTH. EVEN EARLY! THANKS!

Very high decibel high pitched noise from engines as we taxied to gate in PHL. VERY annoying. Lasted over 5 minutes. ALSO, i didnt need to print out own boarding passes. You could fix your website check in px.

EWR
PHX
Okay 5.6

Got me to where I'm going safely. Crew was nice.

Flying is painful

CLT
BWI
Good 7.3

Crew was outstanding

Hurried beverage service since arriving early. R

DFW
HKG
Good 6.6

seat and seating was nice, boarding was efficient, movies okay

while the dinner was okay, the stromboli which came as a snack of sorts was terrible and caused me to be "on the run" for the next 12 hours. the last five hours of the flight and then at home were awful

LAX
DEN
Mediocre 2.0

Everything. Had to sleep overnight in airport and was late coming home.

Mon, Jan 8
ISP
SFO
29h 21m
Tue, Jan 16
SFO
ISP
16h 54m
Trip: 9 days
5.6OkayShow reviews
Overall 5.6 Okay
Based on 33009 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
PVD
MCO
Mediocre 2.0

Seats are hard and uncomfortable. Very small drink tray and lights are not adjustable.

MCO
ATL
Okay 5.3

The poor way they handle things when the system goes down

MSP
DEN
Mediocre 2.0

We didn't make it to Vegas and they barely compensated us.

PHX
CVG
Good 7.0

I liked that the staff was friendly and the tickets were affordable

I didn’t like that there was no complimentary food or beverage options.

PSP
DEN
Mediocre 3.3

My flight crew. Received call concerning my bag in Atlanta, although I was still in Denver.

Long line to check in, anxiety about missing flight Had to pay for my carry on Missed my connecting flight, announcements were not clear Was told I to pay a rebooking fee for a flight two days later Frontier does not offer stand by Spent $285 with another airline to get to Atlanta on time

Fri, Jan 19
ISP
SFO
11h 17m
Tue, Jan 23
SFO
ISP
10h 58m
Trip: 5 days
5.6OkayShow reviews
Overall 5.6 Okay
Based on 33009 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
MSP
DEN
Mediocre 2.0

We didn't make it to Vegas and they barely compensated us.

MSY
DEN
Excellent 8.0

Flight was delayed

PSP
DEN
Mediocre 3.3

My flight crew. Received call concerning my bag in Atlanta, although I was still in Denver.

Long line to check in, anxiety about missing flight Had to pay for my carry on Missed my connecting flight, announcements were not clear Was told I to pay a rebooking fee for a flight two days later Frontier does not offer stand by Spent $285 with another airline to get to Atlanta on time

MCO
ATL
Okay 5.3

The poor way they handle things when the system goes down

PHX
CVG
Good 7.0

I liked that the staff was friendly and the tickets were affordable

I didn’t like that there was no complimentary food or beverage options.

Wed, Dec 6
ISP
SFO
8h 22m
Wed, Dec 13
SFO
ISP
7h 43m
Trip: 8 days
7.2GoodShow reviews
Overall 7.2 Good
Based on 25376 reviews
Overall
7.3
Boarding
7.5
Comfort
7.1
Crew
7.8
Entertainment
6.7
Food
6.6
TPA
MIA
Okay 5.6

I liked the way the AA gate supervisor too charge of the problem and solved it, with great deal of personal imvolvement and follow up. Also check-in crew was very much the best. I would say that AA showed the best of passages care to me. Truly outstanding.

Because of a mixup, though not of AA doing, I was literally forgotten at the gate. However, AA personnel showed the very best of can-do attitude and got me home for Thanksgiving. I am very proud of everyone working at AA at the TPA airport.

NRT
DFW
Mediocre 3.0

The calmness and assurance from the cockpit was promising

Flight attendants were not pleasant at all. They had know clue what to do during the flight emergency.

LAX
OGG
Okay 5.3

First Class seating was of course better than economy.

Flight to Maui had no Mai Tai drinks available, no heated towels, no dessert, barely any service from the flight attendant(s).

FAT
LAX
Excellent 8.0

YYC is a nice airport. I have found I like Canadian's more then Americans when it come to air travel.

LAX is not a convenient airport at all.

GSP
PHL
Good 6.0

ON TIME AND VERY SMOOTH. EVEN EARLY! THANKS!

Very high decibel high pitched noise from engines as we taxied to gate in PHL. VERY annoying. Lasted over 5 minutes. ALSO, i didnt need to print out own boarding passes. You could fix your website check in px.

Sat, Dec 9
ISP
SFO
9h 03m
Wed, Dec 13
SFO
ISP
7h 43m
Trip: 5 days
7.2GoodShow reviews
Overall 7.2 Good
Based on 25376 reviews
Overall
7.3
Boarding
7.5
Comfort
7.1
Crew
7.8
Entertainment
6.7
Food
6.6
TPA
MIA
Okay 5.6

I liked the way the AA gate supervisor too charge of the problem and solved it, with great deal of personal imvolvement and follow up. Also check-in crew was very much the best. I would say that AA showed the best of passages care to me. Truly outstanding.

Because of a mixup, though not of AA doing, I was literally forgotten at the gate. However, AA personnel showed the very best of can-do attitude and got me home for Thanksgiving. I am very proud of everyone working at AA at the TPA airport.

CLT
BWI
Good 7.3

Crew was outstanding

Hurried beverage service since arriving early. R

EWR
PHX
Okay 5.6

Got me to where I'm going safely. Crew was nice.

Flying is painful

LAX
OGG
Okay 5.3

First Class seating was of course better than economy.

Flight to Maui had no Mai Tai drinks available, no heated towels, no dessert, barely any service from the flight attendant(s).

FAT
LAX
Excellent 8.0

YYC is a nice airport. I have found I like Canadian's more then Americans when it come to air travel.

LAX is not a convenient airport at all.

Mon, Jan 22
ISP
SFO
41h 46m
Fri, Jan 26
SFO
ISP
10h 58m
Trip: 5 days
5.6OkayShow reviews
Overall 5.6 Okay
Based on 33009 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
MSP
DEN
Mediocre 2.0

We didn't make it to Vegas and they barely compensated us.

PSP
DEN
Mediocre 3.3

My flight crew. Received call concerning my bag in Atlanta, although I was still in Denver.

Long line to check in, anxiety about missing flight Had to pay for my carry on Missed my connecting flight, announcements were not clear Was told I to pay a rebooking fee for a flight two days later Frontier does not offer stand by Spent $285 with another airline to get to Atlanta on time

MSY
DEN
Excellent 8.0

Flight was delayed

PVD
MCO
Mediocre 2.0

Seats are hard and uncomfortable. Very small drink tray and lights are not adjustable.

AUS
IAD
Mediocre 2.0

2.5 hours delay is what I didn’t like

Wed, Jan 10
ISP
SFO
11h 17m
Tue, Jan 16
SFO
ISP
10h 58m
Trip: 7 days
5.6OkayShow reviews
Overall 5.6 Okay
Based on 33009 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
PHL
PBI
Good 6.3

The plane was clean and we left on time with no delays or issues. The flight crew were very nice and there was also enough overhead space for everyone’s bags.

The lines are excessively long to check a bag, there was only 1 of 4 check in kiosks working, which created it’s own line. Also the carry on bag fee at the airport was incredibly steep.

MSP
DEN
Mediocre 2.0

We didn't make it to Vegas and they barely compensated us.

PSP
DEN
Mediocre 3.3

My flight crew. Received call concerning my bag in Atlanta, although I was still in Denver.

Long line to check in, anxiety about missing flight Had to pay for my carry on Missed my connecting flight, announcements were not clear Was told I to pay a rebooking fee for a flight two days later Frontier does not offer stand by Spent $285 with another airline to get to Atlanta on time

TPA
MKE
Good 6.3

The toilet was broken. Hour delay

MKE
LAS
Okay 5.6

The crew was most friendly and accommodating. Pilots very informative made a could be turbulent flight very smooth.

Seats are very uncomfortable had a bar straight across bottom of my back. Lack of food and beverages. The plane should always be stocked.

Wed, Feb 14
ISP
SFO
8h 29m
Tue, Feb 20
SFO
ISP
7h 57m
Trip: 7 days
7.2GoodShow reviews
Overall 7.2 Good
Based on 25376 reviews
Overall
7.3
Boarding
7.5
Comfort
7.1
Crew
7.8
Entertainment
6.7
Food
6.6
DFW
HKG
Good 6.6

seat and seating was nice, boarding was efficient, movies okay

while the dinner was okay, the stromboli which came as a snack of sorts was terrible and caused me to be "on the run" for the next 12 hours. the last five hours of the flight and then at home were awful

MEM
DFW
Mediocre 2.0

Absolutely nothing

Everything about the flight was awful. Food pathetic, my monitor didn’t work, smooshed between 2 overweight passengers. Flight crew lacked simple etiquette.

FAT
LAX
Excellent 8.0

YYC is a nice airport. I have found I like Canadian's more then Americans when it come to air travel.

LAX is not a convenient airport at all.

DFW
HKG
Okay 5.3

Boarding was simple and efficient Seat was better than usual

Dinner was okay, the mid-flight snack was awful and made my wife sick, breakfast was better. Entertainment console crashed four times, first crew member didn’t seem to care (aloof for most of the flight), other attendants seemed marginally more interested. No one checked back to see if the problem was resolved. Flight attendants seem to be in “check the box” mode doing only what was necessary.

LAX
DEN
Mediocre 2.0

Everything. Had to sleep overnight in airport and was late coming home.

Sat, Jan 13
ISP
SFO
29h 21m
Tue, Jan 23
SFO
ISP
16h 54m
Trip: 11 days
5.6OkayShow reviews
Overall 5.6 Okay
Based on 33009 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
AUS
IAD
Mediocre 2.0

2.5 hours delay is what I didn’t like

MCO
ATL
Okay 5.3

The poor way they handle things when the system goes down

PHX
CVG
Good 7.0

I liked that the staff was friendly and the tickets were affordable

I didn’t like that there was no complimentary food or beverage options.

MSP
DEN
Mediocre 2.0

We didn't make it to Vegas and they barely compensated us.

MSY
DEN
Excellent 8.0

Flight was delayed

Wed, Dec 13
ISP
SFO
9h 03m
Sat, Dec 16
SFO
ISP
7h 51m
Trip: 4 days
7.2GoodShow reviews
Overall 7.2 Good
Based on 25376 reviews
Overall
7.3
Boarding
7.5
Comfort
7.1
Crew
7.8
Entertainment
6.7
Food
6.6
NRT
DFW
Mediocre 3.0

The calmness and assurance from the cockpit was promising

Flight attendants were not pleasant at all. They had know clue what to do during the flight emergency.

DFW
HKG
Good 6.6

seat and seating was nice, boarding was efficient, movies okay

while the dinner was okay, the stromboli which came as a snack of sorts was terrible and caused me to be "on the run" for the next 12 hours. the last five hours of the flight and then at home were awful

MEM
DFW
Mediocre 2.0

Absolutely nothing

Everything about the flight was awful. Food pathetic, my monitor didn’t work, smooshed between 2 overweight passengers. Flight crew lacked simple etiquette.

EWR
PHX
Okay 5.6

Got me to where I'm going safely. Crew was nice.

Flying is painful

PBI
CLT
Mediocre 3.0

I know this isn’t Kayak’s issue but American Airlines literally forgot to put fuel into the plane. We were delayed for over an hour and luckily I made my connection in Charlotte but only because they held the flight and it was not full. Had it been full I would have lost my seat.

Sat, Jan 20
ISP
SFO
29h 21m
Tue, Jan 30
SFO
ISP
16h 54m
Trip: 11 days
5.6OkayShow reviews
Overall 5.6 Okay
Based on 33009 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
PSP
DEN
Mediocre 3.3

My flight crew. Received call concerning my bag in Atlanta, although I was still in Denver.

Long line to check in, anxiety about missing flight Had to pay for my carry on Missed my connecting flight, announcements were not clear Was told I to pay a rebooking fee for a flight two days later Frontier does not offer stand by Spent $285 with another airline to get to Atlanta on time

MSY
DEN
Excellent 8.0

Flight was delayed

MSP
DEN
Mediocre 2.0

We didn't make it to Vegas and they barely compensated us.

TPA
MKE
Good 6.3

The toilet was broken. Hour delay

PHX
CVG
Good 7.0

I liked that the staff was friendly and the tickets were affordable

I didn’t like that there was no complimentary food or beverage options.

Thu, Nov 30
ISP
SFO
41h 29m
Mon, Dec 4
SFO
ISP
43h 55m
Trip: 5 days
5.6OkayShow reviews
Overall 5.6 Okay
Based on 33009 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
PSP
DEN
Mediocre 3.3

My flight crew. Received call concerning my bag in Atlanta, although I was still in Denver.

Long line to check in, anxiety about missing flight Had to pay for my carry on Missed my connecting flight, announcements were not clear Was told I to pay a rebooking fee for a flight two days later Frontier does not offer stand by Spent $285 with another airline to get to Atlanta on time

AUS
IAD
Mediocre 2.0

2.5 hours delay is what I didn’t like

PHX
CVG
Good 7.0

I liked that the staff was friendly and the tickets were affordable

I didn’t like that there was no complimentary food or beverage options.

MCO
DEN
Good 6.0

It was cheap

MSP
DEN
Mediocre 2.0

We didn't make it to Vegas and they barely compensated us.

Sun, Dec 17
ISP
SFO
8h 24m
Wed, Jan 31
SFO
ISP
7h 57m
Trip: 46 days
7.2GoodShow reviews
Overall 7.2 Good
Based on 25376 reviews
Overall
7.3
Boarding
7.5
Comfort
7.1
Crew
7.8
Entertainment
6.7
Food
6.6
FAT
LAX
Excellent 8.0

YYC is a nice airport. I have found I like Canadian's more then Americans when it come to air travel.

LAX is not a convenient airport at all.

LAX
OGG
Okay 5.3

First Class seating was of course better than economy.

Flight to Maui had no Mai Tai drinks available, no heated towels, no dessert, barely any service from the flight attendant(s).

CLT
BWI
Good 7.3

Crew was outstanding

Hurried beverage service since arriving early. R

TPA
MIA
Okay 5.6

I liked the way the AA gate supervisor too charge of the problem and solved it, with great deal of personal imvolvement and follow up. Also check-in crew was very much the best. I would say that AA showed the best of passages care to me. Truly outstanding.

Because of a mixup, though not of AA doing, I was literally forgotten at the gate. However, AA personnel showed the very best of can-do attitude and got me home for Thanksgiving. I am very proud of everyone working at AA at the TPA airport.

MEM
DFW
Mediocre 2.0

Absolutely nothing

Everything about the flight was awful. Food pathetic, my monitor didn’t work, smooshed between 2 overweight passengers. Flight crew lacked simple etiquette.

Mon, Dec 11
ISP
SFO
29h 19m
Sun, Dec 17
SFO
ISP
10h 43m
Trip: 7 days
5.6OkayShow reviews
Overall 5.6 Okay
Based on 33009 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
PVD
MCO
Mediocre 2.0

Seats are hard and uncomfortable. Very small drink tray and lights are not adjustable.

TPA
MKE
Good 6.3

The toilet was broken. Hour delay

PHL
PBI
Good 6.3

The plane was clean and we left on time with no delays or issues. The flight crew were very nice and there was also enough overhead space for everyone’s bags.

The lines are excessively long to check a bag, there was only 1 of 4 check in kiosks working, which created it’s own line. Also the carry on bag fee at the airport was incredibly steep.

MSY
DEN
Excellent 8.0

Flight was delayed

MCO
DEN
Good 6.0

It was cheap

Sun, Feb 4
ISP
SFO
8h 29m
Sat, Feb 10
SFO
ISP
7h 57m
Trip: 7 days
7.2GoodShow reviews
Overall 7.2 Good
Based on 25376 reviews
Overall
7.3
Boarding
7.5
Comfort
7.1
Crew
7.8
Entertainment
6.7
Food
6.6
NRT
DFW
Mediocre 3.0

The calmness and assurance from the cockpit was promising

Flight attendants were not pleasant at all. They had know clue what to do during the flight emergency.

FAT
LAX
Excellent 8.0

YYC is a nice airport. I have found I like Canadian's more then Americans when it come to air travel.

LAX is not a convenient airport at all.

EWR
PHX
Okay 5.6

Got me to where I'm going safely. Crew was nice.

Flying is painful

LAX
OGG
Okay 5.3

First Class seating was of course better than economy.

Flight to Maui had no Mai Tai drinks available, no heated towels, no dessert, barely any service from the flight attendant(s).

CLT
BWI
Good 7.3

Crew was outstanding

Hurried beverage service since arriving early. R

*
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The fares displayed include all taxes and fees for economy class travel and were found by the provider in the last 72 hours. Seats are limited and may not be available on all flights and days. Fares are subject to change and may not be available on all flights or dates of travel. Some carriers charge additional fees for extra checked bags. Please check the carriers' sites.