Find Cheap Flights from Islip Long Island to San Antonio (ISP - SAT)

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Wed 11/22
Wed 11/29
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When looking for a cheap flight, consider that 25% of our users selected a flight on this route for $311 or less.

FAQs for Booking Islip Long Island to San Antonio Flights

How long does a flight from Islip Long Island to San Antonio take?
An average nonstop flight takes 7h 44m, covering a distance of 1622 miles.
Which airlines provide the cheapest flights from Islip Long Island to San Antonio?
In the past 3 days, the cheapest round-trip tickets were found on Frontier ($210) and American Airlines ($278)
Do I need a passport to fly between Islip Long Island and San Antonio?
No.
What’s the cheapest day of the week to fly Islip Long Island to San Antonio?
For Islip Long Island to San Antonio, Saturday is the cheapest day to fly on average and Friday is the most expensive. Flying from San Antonio back to Islip Long Island, the best deals are generally found on Thursday, with Sunday being the most expensive.

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

Airports
Origin
Islip
$210
only
$210
Destination
San Antonio
$210
only
$210
Sat, Jan 13
ISP
SAT
27h 21m
Tue, Jan 16
SAT
ISP
18h 54m
Trip: 4 days
5.6OkayShow reviews
Overall 5.6 Okay
Based on 32989 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
CVG
MCO
Okay 4.0

It got me where I needed to go, albeit with a little effort and stress. Crew was pleasant. Thank you.

6 people overbooked, who might not have gotten seats. I was one of them. I recognize there was nothing I could have done either way but it was unpleasant to hear I might not get a seat on a flight I bought a ticket to a month ago, regardless of the price. And the return flight was dismal. Had to wait an extra 3 hours for maintanence on the plane (fine, would rather it get fixed than have an issue in the air) but we were told there would be vouchers worth some amount sent to our email after we landed back in cincinnati. It's been 3 days and I have received no such vouchers. It also turns out I payed $45 for a personal bag that was I guess covered under a personal bag? I recognize this as being partly my fault, but when I went to get my ticket "personal bag" wasn't an option, so I didn't think I had one, or my single backpack actually was $45 to take with me. Was not a terrible experience. Just not a good one.

ATL
LAS
Excellent 8.5

The crew is really nice, attentive, and it's not hard to get their attention. They also don't bother you when you sleep and are overall quiet and courteous.

Not knowing how long until we land. A quick "1 hour till arrival . . . 30min..." would have been appreciated.

SFO
ATL
Okay 5.3

The price of the flight was great, but even with an upgraded seat I will not be flying Frontier again.

I upgraded my girlfriend and I to stretch seating for our 5 hour flights roundtrip from ATL to SFO. I did not realize by upgrading and selecting my seat in row 4 that my seats do not recline. This caused several issues with my bad back and with the fold down tray on the seat in front of me. I had my laptop on the tray, and when the person in front of me leaned his seat back all the way suddenly, it pinched the top of the screen between the tray and the back of his seat and cracked my laptop exterior. The main issue was not being able to "stretch" by not having a reclining seat and experienced major discomfort and back pain both flights.

DEN
SLC
Excellent 10.0

Great flight from start to finish. Had boarding passes, so easy, Quick luggage checkin, easy boarding, and easy, Quick luggage retrieval at end of flight.

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, Feb 28
ISP
SAT
7h 44m
Sat, Mar 3
SAT
ISP
6h 01m
Trip: 4 days
7.2GoodShow reviews
Overall 7.2 Good
Based on 25306 reviews
Overall
7.3
Boarding
7.5
Comfort
7.1
Crew
7.8
Entertainment
6.7
Food
6.6
CDG
ORD
Excellent 10.0

Flight attendants were helpful and friendly. Movies.

Food-gross, but expected for pre-fab food.

PHX
JFK
Excellent 10.0

On time slept the whole way

LAX
AUS
Excellent 10.0

Curteous. Prompt. On time.

BOS
JFK
Okay 5.0

The crew was really nice and caring

The music and entertainment collection was very limited

SAT
CLT
Excellent 10.0

The flight left on time, there wasn't a lot of fuss about overhead space and we arrived early.

They didn't offer any snacks...no pretzels or cookies.

Mon, Dec 4
ISP
SAT
24h 00m
Tue, Dec 12
SAT
ISP
10h 17m
Trip: 9 days
5.6OkayShow reviews
Overall 5.6 Okay
Based on 32989 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

MCO
ATL
Okay 5.3

The poor way they handle things when the system goes down

CVG
MCO
Okay 4.0

It got me where I needed to go, albeit with a little effort and stress. Crew was pleasant. Thank you.

6 people overbooked, who might not have gotten seats. I was one of them. I recognize there was nothing I could have done either way but it was unpleasant to hear I might not get a seat on a flight I bought a ticket to a month ago, regardless of the price. And the return flight was dismal. Had to wait an extra 3 hours for maintanence on the plane (fine, would rather it get fixed than have an issue in the air) but we were told there would be vouchers worth some amount sent to our email after we landed back in cincinnati. It's been 3 days and I have received no such vouchers. It also turns out I payed $45 for a personal bag that was I guess covered under a personal bag? I recognize this as being partly my fault, but when I went to get my ticket "personal bag" wasn't an option, so I didn't think I had one, or my single backpack actually was $45 to take with me. Was not a terrible experience. Just not a good one.

MIA
PVD
Mediocre 2.0

Complete disaster

Never again

DEN
SLC
Excellent 10.0

Great flight from start to finish. Had boarding passes, so easy, Quick luggage checkin, easy boarding, and easy, Quick luggage retrieval at end of flight.

Wed, Jan 24
ISP
SAT
27h 21m
Sun, Jan 28
SAT
ISP
18h 54m
Trip: 5 days
5.6OkayShow reviews
Overall 5.6 Okay
Based on 32989 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
DEN
SEA
Mediocre 3.3

They still pick up trash!!

New airbus has even LESS room!! Have to manhandle your personal bag out of the even smaller space under the seat! A soda is $3! There is Nothing to read anymore and the crew are overwhelmed with cranky people... making them cranky.

SFO
ATL
Okay 5.3

The price of the flight was great, but even with an upgraded seat I will not be flying Frontier again.

I upgraded my girlfriend and I to stretch seating for our 5 hour flights roundtrip from ATL to SFO. I did not realize by upgrading and selecting my seat in row 4 that my seats do not recline. This caused several issues with my bad back and with the fold down tray on the seat in front of me. I had my laptop on the tray, and when the person in front of me leaned his seat back all the way suddenly, it pinched the top of the screen between the tray and the back of his seat and cracked my laptop exterior. The main issue was not being able to "stretch" by not having a reclining seat and experienced major discomfort and back pain both flights.

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

CVG
MCO
Okay 4.0

It got me where I needed to go, albeit with a little effort and stress. Crew was pleasant. Thank you.

6 people overbooked, who might not have gotten seats. I was one of them. I recognize there was nothing I could have done either way but it was unpleasant to hear I might not get a seat on a flight I bought a ticket to a month ago, regardless of the price. And the return flight was dismal. Had to wait an extra 3 hours for maintanence on the plane (fine, would rather it get fixed than have an issue in the air) but we were told there would be vouchers worth some amount sent to our email after we landed back in cincinnati. It's been 3 days and I have received no such vouchers. It also turns out I payed $45 for a personal bag that was I guess covered under a personal bag? I recognize this as being partly my fault, but when I went to get my ticket "personal bag" wasn't an option, so I didn't think I had one, or my single backpack actually was $45 to take with me. Was not a terrible experience. Just not a good one.

Wed, Mar 28
ISP
SAT
27h 15m
Tue, Apr 3
SAT
ISP
18h 57m
Trip: 7 days
5.6OkayShow reviews
Overall 5.6 Okay
Based on 32989 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

MCO
ATL
Okay 5.3

The poor way they handle things when the system goes down

DEN
SLC
Excellent 10.0

Great flight from start to finish. Had boarding passes, so easy, Quick luggage checkin, easy boarding, and easy, Quick luggage retrieval at end of flight.

ATL
LAS
Excellent 8.5

The crew is really nice, attentive, and it's not hard to get their attention. They also don't bother you when you sleep and are overall quiet and courteous.

Not knowing how long until we land. A quick "1 hour till arrival . . . 30min..." would have been appreciated.

DEN
OKC
Mediocre 2.0

Nothing

I signed up for special services for meet and assist and no one helped me.

Fri, Feb 16
ISP
SAT
7h 44m
Mon, Feb 19
SAT
ISP
6h 01m
Trip: 4 days
7.2GoodShow reviews
Overall 7.2 Good
Based on 25306 reviews
Overall
7.3
Boarding
7.5
Comfort
7.1
Crew
7.8
Entertainment
6.7
Food
6.6
BOS
JFK
Okay 5.0

The crew was really nice and caring

The music and entertainment collection was very limited

EZE
LIM
Excellent 10.0

The food was fabulous!

BCN
JFK
Mediocre 2.0

I was booted off my flight and then got rerouted on 4 different planes...IAD to London, to Geneva to Zurich to Barcelona. Got to Barcelona and my bag was missing. It was a nightmare.

CDG
ORD
Excellent 10.0

Flight attendants were helpful and friendly. Movies.

Food-gross, but expected for pre-fab food.

LAX
DFW
Okay 4.0

American Airlines lost one of my bags They also lost one of Dsrnell Wilson's bags as well

Wed, Nov 29
ISP
SAT
21h 40m
Sun, Dec 3
SAT
ISP
24h 35m
Trip: 5 days
5.6OkayShow reviews
Overall 5.6 Okay
Based on 32989 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
DEN
OKC
Mediocre 2.0

Nothing

I signed up for special services for meet and assist and no one helped me.

MCO
ATL
Okay 5.3

The poor way they handle things when the system goes down

DEN
SEA
Mediocre 3.3

They still pick up trash!!

New airbus has even LESS room!! Have to manhandle your personal bag out of the even smaller space under the seat! A soda is $3! There is Nothing to read anymore and the crew are overwhelmed with cranky people... making them cranky.

MIA
PVD
Mediocre 2.0

Complete disaster

Never again

CVG
MCO
Okay 4.0

It got me where I needed to go, albeit with a little effort and stress. Crew was pleasant. Thank you.

6 people overbooked, who might not have gotten seats. I was one of them. I recognize there was nothing I could have done either way but it was unpleasant to hear I might not get a seat on a flight I bought a ticket to a month ago, regardless of the price. And the return flight was dismal. Had to wait an extra 3 hours for maintanence on the plane (fine, would rather it get fixed than have an issue in the air) but we were told there would be vouchers worth some amount sent to our email after we landed back in cincinnati. It's been 3 days and I have received no such vouchers. It also turns out I payed $45 for a personal bag that was I guess covered under a personal bag? I recognize this as being partly my fault, but when I went to get my ticket "personal bag" wasn't an option, so I didn't think I had one, or my single backpack actually was $45 to take with me. Was not a terrible experience. Just not a good one.

Wed, Dec 20
ISP
SAT
24h 05m
Tue, Dec 26
SAT
ISP
9h 21m
Trip: 7 days
5.6OkayShow reviews
Overall 5.6 Okay
Based on 32989 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.

DEN
ATL
Mediocre 2.0

I did not make the flight due to unclear announcements.

MIA
PVD
Mediocre 2.0

Complete disaster

Never again

SFO
ATL
Okay 5.3

The price of the flight was great, but even with an upgraded seat I will not be flying Frontier again.

I upgraded my girlfriend and I to stretch seating for our 5 hour flights roundtrip from ATL to SFO. I did not realize by upgrading and selecting my seat in row 4 that my seats do not recline. This caused several issues with my bad back and with the fold down tray on the seat in front of me. I had my laptop on the tray, and when the person in front of me leaned his seat back all the way suddenly, it pinched the top of the screen between the tray and the back of his seat and cracked my laptop exterior. The main issue was not being able to "stretch" by not having a reclining seat and experienced major discomfort and back pain both flights.

DEN
SLC
Excellent 10.0

Great flight from start to finish. Had boarding passes, so easy, Quick luggage checkin, easy boarding, and easy, Quick luggage retrieval at end of flight.

*
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