Find Cheap Flights from San Diego to Islip Long Island (SAN - ISP)

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FAQs for Booking San Diego to Islip Long Island Flights

How long does a flight from San Diego to Islip Long Island take?
An average nonstop flight takes 7h 19m, covering a distance of 2476 miles.
Which airlines provide the cheapest flights from San Diego to Islip Long Island?
In the past 3 days, the cheapest round-trip tickets were found on Frontier ($318) and American Airlines ($500)
Do I need a passport to fly between San Diego and Islip Long Island?
No.
What’s the cheapest day of the week to fly San Diego to Islip Long Island?
For San Diego to Islip Long Island, Sunday is the cheapest day to fly on average and Friday is the most expensive. Flying from Islip Long Island back to San Diego, the best deals are generally found on Tuesday, with Saturday being the most expensive.

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

Airports
Origin
San Diego
$318
only
$318
Destination
Islip
$318
only
$318
Sun, Jan 7
SAN
ISP
25h 34m
Wed, Jan 10
ISP
SAN
20h 41m
Trip: 4 days
5.6OkayShow reviews
Overall 5.6 Okay
Based on 33276 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
MKE
TPA
Good 6.6

2nd row had plenty of leg room, nice new jet, Nice flight attendants, smooth flight, on time, made it to my destination safe. Successful flight! TSA Pre-chek was nice.

Idiot in front of me reclined his seat. Plane didn't get catered overnight. Water only.

MSY
MCO
Excellent 10.0

Great crew great flight

Nothing, everything was awesome. Crazy to believe this was a 19 dollar flight

SJU
ATL
Excellent 10.0

Fast luggage checking

No cash accepted for overweight baggage

MSY
PVD
Excellent 8.0

The price!

LAS
IAD
Good 6.3

The staff on the flight was awesome, very helpful and kind to my friend who is terrified to fly. We were even ahead of schedule.

To pay for a carry on item is just crazy to me... not to mention you have to pay for beverages and snacks. All you are given is water.

Wed, Jan 3
SAN
ISP
7h 19m
Tue, Jan 9
ISP
SAN
10h 55m
Trip: 7 days
7.2GoodShow reviews
Overall 7.2 Good
Based on 26083 reviews
Overall
7.3
Boarding
7.5
Comfort
7.1
Crew
7.8
Entertainment
6.7
Food
6.6
DFW
PBI
Okay 5.6

Free movies, and crew were helpful once we were in the air

Gate agent did not start forcing check in, which caused delay in boarding. Ground crew did not stock aircraft until 20 minutes after scheduled departure time. and DFW did the usual 20 minute taxi and then 15 minute hold prior to take off.

JFK
MXP
Mediocre 2.0

6hours delay and no reimbursement. It sucked! Thank you.

PHX
PDX
Excellent 9.0

I like how quick and efficient the boarding and check in process was.

I just wish that if I paid a little more for seats I should get more comfortable and roomier seats is all. Don’t make the seats sit so upright.

DFW
SCL
Excellent 9.6

The food is very tasty, but AA has not changed the menu in at least one year.

DFW
LHR
Good 7.0

Crew were very nice.

Poor food for vegetarians. Also the overhead space was not locked properly. Suddenly, it opened and my carry on fell out. Luckily, it didn’t hit my husband who had the aisle seat or anyone else. However, I am upset because my laptop was inside this and may be damaged now.

Tue, May 15
SAN
ISP
24h 31m
Wed, May 23
ISP
SAN
15h 36m
Trip: 9 days
5.6OkayShow reviews
Overall 5.6 Okay
Based on 33276 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
MKE
TPA
Good 6.6

2nd row had plenty of leg room, nice new jet, Nice flight attendants, smooth flight, on time, made it to my destination safe. Successful flight! TSA Pre-chek was nice.

Idiot in front of me reclined his seat. Plane didn't get catered overnight. Water only.

DEN
MCO
Excellent 8.0

The fact that my checked baggage is confusing when they charged me it was only for one way. I was billed and then noticed it was only one way, so I had to re enter my credit card info twice. Seems to me they should assume I will be bringing back my suitcase and contents rather than that I would be leaving it.

MSY
MCO
Excellent 10.0

Great crew great flight

Nothing, everything was awesome. Crazy to believe this was a 19 dollar flight

PHL
MCO
Mediocre 2.3

Its a scam! They act like they are giving you a break by having you buy cheap flights but in reality it costs more than a bit more expensive flight. I had to pay $45.00 each bag no matter if it was checked or carry-on. In total round trip I paid $180.00 extra just for my husbands carry-on as well as mine. Must add that our flights together cost 286.00. We should of went with American Airlines. On top of that we couldn't select our own seat if so, we had to pay extra, so we had to sit separated from each other. It was ridiculous! Never Again with this company!!!!!

MSY
PVD
Excellent 8.0

The price!

Fri, Jan 5
SAN
ISP
25h 34m
Wed, Jan 10
ISP
SAN
20h 41m
Trip: 6 days
5.6OkayShow reviews
Overall 5.6 Okay
Based on 33276 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
SJU
ATL
Excellent 10.0

Fast luggage checking

No cash accepted for overweight baggage

TYS
MCO
Okay 5.0

Great people

The plane wasn’t very clean

DEN
MCO
Excellent 8.0

The fact that my checked baggage is confusing when they charged me it was only for one way. I was billed and then noticed it was only one way, so I had to re enter my credit card info twice. Seems to me they should assume I will be bringing back my suitcase and contents rather than that I would be leaving it.

MKE
TPA
Good 6.6

2nd row had plenty of leg room, nice new jet, Nice flight attendants, smooth flight, on time, made it to my destination safe. Successful flight! TSA Pre-chek was nice.

Idiot in front of me reclined his seat. Plane didn't get catered overnight. Water only.

PHL
MCO
Mediocre 2.3

Its a scam! They act like they are giving you a break by having you buy cheap flights but in reality it costs more than a bit more expensive flight. I had to pay $45.00 each bag no matter if it was checked or carry-on. In total round trip I paid $180.00 extra just for my husbands carry-on as well as mine. Must add that our flights together cost 286.00. We should of went with American Airlines. On top of that we couldn't select our own seat if so, we had to pay extra, so we had to sit separated from each other. It was ridiculous! Never Again with this company!!!!!

Thu, Apr 12
SAN
ISP
24h 29m
Tue, Apr 17
ISP
SAN
15h 08m
Trip: 6 days
5.6OkayShow reviews
Overall 5.6 Okay
Based on 33276 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
DEN
MCO
Excellent 8.0

The fact that my checked baggage is confusing when they charged me it was only for one way. I was billed and then noticed it was only one way, so I had to re enter my credit card info twice. Seems to me they should assume I will be bringing back my suitcase and contents rather than that I would be leaving it.

SJU
ATL
Excellent 10.0

Fast luggage checking

No cash accepted for overweight baggage

TYS
MCO
Okay 5.0

Great people

The plane wasn’t very clean

LAS
IAD
Good 6.3

The staff on the flight was awesome, very helpful and kind to my friend who is terrified to fly. We were even ahead of schedule.

To pay for a carry on item is just crazy to me... not to mention you have to pay for beverages and snacks. All you are given is water.

MSY
PVD
Excellent 8.0

The price!

Thu, Apr 19
SAN
ISP
24h 29m
Wed, Apr 25
ISP
SAN
16h 08m
Trip: 7 days
5.6OkayShow reviews
Overall 5.6 Okay
Based on 33276 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
AUS
LAS
Excellent 8.0

Efficient

N/a

PHL
MCO
Mediocre 2.3

Its a scam! They act like they are giving you a break by having you buy cheap flights but in reality it costs more than a bit more expensive flight. I had to pay $45.00 each bag no matter if it was checked or carry-on. In total round trip I paid $180.00 extra just for my husbands carry-on as well as mine. Must add that our flights together cost 286.00. We should of went with American Airlines. On top of that we couldn't select our own seat if so, we had to pay extra, so we had to sit separated from each other. It was ridiculous! Never Again with this company!!!!!

DEN
MKE
Good 6.6

Direct flight from Denver to Milwaukee. Didn't have to wait on tarmac so that was a plus.

Have to pay for every little thring down to the peanuts

MSY
MCO
Excellent 10.0

Great crew great flight

Nothing, everything was awesome. Crazy to believe this was a 19 dollar flight

DEN
MCO
Excellent 8.0

The fact that my checked baggage is confusing when they charged me it was only for one way. I was billed and then noticed it was only one way, so I had to re enter my credit card info twice. Seems to me they should assume I will be bringing back my suitcase and contents rather than that I would be leaving it.

Wed, May 9
SAN
ISP
24h 54m
Sun, May 13
ISP
SAN
15h 16m
Trip: 5 days
5.6OkayShow reviews
Overall 5.6 Okay
Based on 33276 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
LAS
IAD
Good 6.3

The staff on the flight was awesome, very helpful and kind to my friend who is terrified to fly. We were even ahead of schedule.

To pay for a carry on item is just crazy to me... not to mention you have to pay for beverages and snacks. All you are given is water.

MSY
PVD
Excellent 8.0

The price!

DEN
SFO
Mediocre 2.0

Website would not let me check in the day before or the morning or my flight. There was an error every time and I almost got to the end once. I could not change the time of my transportation and arrived 10 minutes past the check in deadline (an hour prior to the flight taking off). I was refused access to the flight and offered a flight 5 hours later. The staff was rude and not helpful. I had heard negative things about Frontier and now I know why.

LAX
DEN
Excellent 8.0

Good beer selection

Air conditioning Weak flow Warm temperatures Non reclining seats

MSY
MCO
Excellent 10.0

Great crew great flight

Nothing, everything was awesome. Crazy to believe this was a 19 dollar flight

Thu, Jun 7
SAN
ISP
24h 31m
Wed, Jun 13
ISP
SAN
15h 36m
Trip: 7 days
5.6OkayShow reviews
Overall 5.6 Okay
Based on 33276 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
MKE
TPA
Good 6.6

2nd row had plenty of leg room, nice new jet, Nice flight attendants, smooth flight, on time, made it to my destination safe. Successful flight! TSA Pre-chek was nice.

Idiot in front of me reclined his seat. Plane didn't get catered overnight. Water only.

AUS
LAS
Excellent 8.0

Efficient

N/a

MSY
PVD
Excellent 8.0

The price!

DEN
SFO
Mediocre 2.0

Website would not let me check in the day before or the morning or my flight. There was an error every time and I almost got to the end once. I could not change the time of my transportation and arrived 10 minutes past the check in deadline (an hour prior to the flight taking off). I was refused access to the flight and offered a flight 5 hours later. The staff was rude and not helpful. I had heard negative things about Frontier and now I know why.

SJU
ATL
Excellent 10.0

Fast luggage checking

No cash accepted for overweight baggage

Fri, Mar 9
SAN
ISP
9h 45m
Tue, Mar 13
ISP
SAN
17h 36m
Trip: 4 days
5.6OkayShow reviews
Overall 5.6 Okay
Based on 33276 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
SJU
ATL
Excellent 10.0

Fast luggage checking

No cash accepted for overweight baggage

MSY
PVD
Excellent 8.0

The price!

LAS
IAD
Good 6.3

The staff on the flight was awesome, very helpful and kind to my friend who is terrified to fly. We were even ahead of schedule.

To pay for a carry on item is just crazy to me... not to mention you have to pay for beverages and snacks. All you are given is water.

DEN
MCO
Excellent 8.0

The fact that my checked baggage is confusing when they charged me it was only for one way. I was billed and then noticed it was only one way, so I had to re enter my credit card info twice. Seems to me they should assume I will be bringing back my suitcase and contents rather than that I would be leaving it.

PHL
MCO
Mediocre 2.3

Its a scam! They act like they are giving you a break by having you buy cheap flights but in reality it costs more than a bit more expensive flight. I had to pay $45.00 each bag no matter if it was checked or carry-on. In total round trip I paid $180.00 extra just for my husbands carry-on as well as mine. Must add that our flights together cost 286.00. We should of went with American Airlines. On top of that we couldn't select our own seat if so, we had to pay extra, so we had to sit separated from each other. It was ridiculous! Never Again with this company!!!!!

Sun, May 20
SAN
ISP
24h 31m
Fri, May 25
ISP
SAN
15h 36m
Trip: 6 days
5.6OkayShow reviews
Overall 5.6 Okay
Based on 33276 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
LAS
IAD
Good 6.3

The staff on the flight was awesome, very helpful and kind to my friend who is terrified to fly. We were even ahead of schedule.

To pay for a carry on item is just crazy to me... not to mention you have to pay for beverages and snacks. All you are given is water.

PHL
MCO
Mediocre 2.3

Its a scam! They act like they are giving you a break by having you buy cheap flights but in reality it costs more than a bit more expensive flight. I had to pay $45.00 each bag no matter if it was checked or carry-on. In total round trip I paid $180.00 extra just for my husbands carry-on as well as mine. Must add that our flights together cost 286.00. We should of went with American Airlines. On top of that we couldn't select our own seat if so, we had to pay extra, so we had to sit separated from each other. It was ridiculous! Never Again with this company!!!!!

AUS
LAS
Excellent 8.0

Efficient

N/a

TYS
MCO
Okay 5.0

Great people

The plane wasn’t very clean

MSY
MCO
Excellent 10.0

Great crew great flight

Nothing, everything was awesome. Crazy to believe this was a 19 dollar flight

Thu, Feb 15
SAN
ISP
25h 36m
Wed, Feb 21
ISP
SAN
20h 39m
Trip: 7 days
5.6OkayShow reviews
Overall 5.6 Okay
Based on 33276 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
SJU
ATL
Excellent 10.0

Fast luggage checking

No cash accepted for overweight baggage

MKE
TPA
Good 6.6

2nd row had plenty of leg room, nice new jet, Nice flight attendants, smooth flight, on time, made it to my destination safe. Successful flight! TSA Pre-chek was nice.

Idiot in front of me reclined his seat. Plane didn't get catered overnight. Water only.

AUS
LAS
Excellent 8.0

Efficient

N/a

PHL
MCO
Mediocre 2.3

Its a scam! They act like they are giving you a break by having you buy cheap flights but in reality it costs more than a bit more expensive flight. I had to pay $45.00 each bag no matter if it was checked or carry-on. In total round trip I paid $180.00 extra just for my husbands carry-on as well as mine. Must add that our flights together cost 286.00. We should of went with American Airlines. On top of that we couldn't select our own seat if so, we had to pay extra, so we had to sit separated from each other. It was ridiculous! Never Again with this company!!!!!

DEN
MKE
Good 6.6

Direct flight from Denver to Milwaukee. Didn't have to wait on tarmac so that was a plus.

Have to pay for every little thring down to the peanuts

Sun, Dec 24
SAN
ISP
24h 59m
Wed, Dec 27
ISP
SAN
21h 09m
Trip: 4 days
5.6OkayShow reviews
Overall 5.6 Okay
Based on 33276 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
DEN
SFO
Mediocre 2.0

Website would not let me check in the day before or the morning or my flight. There was an error every time and I almost got to the end once. I could not change the time of my transportation and arrived 10 minutes past the check in deadline (an hour prior to the flight taking off). I was refused access to the flight and offered a flight 5 hours later. The staff was rude and not helpful. I had heard negative things about Frontier and now I know why.

PHL
MCO
Mediocre 2.3

Its a scam! They act like they are giving you a break by having you buy cheap flights but in reality it costs more than a bit more expensive flight. I had to pay $45.00 each bag no matter if it was checked or carry-on. In total round trip I paid $180.00 extra just for my husbands carry-on as well as mine. Must add that our flights together cost 286.00. We should of went with American Airlines. On top of that we couldn't select our own seat if so, we had to pay extra, so we had to sit separated from each other. It was ridiculous! Never Again with this company!!!!!

MKE
TPA
Good 6.6

2nd row had plenty of leg room, nice new jet, Nice flight attendants, smooth flight, on time, made it to my destination safe. Successful flight! TSA Pre-chek was nice.

Idiot in front of me reclined his seat. Plane didn't get catered overnight. Water only.

AUS
LAS
Excellent 8.0

Efficient

N/a

DEN
MKE
Good 6.6

Direct flight from Denver to Milwaukee. Didn't have to wait on tarmac so that was a plus.

Have to pay for every little thring down to the peanuts

Fri, Feb 9
SAN
ISP
25h 36m
Mon, Feb 12
ISP
SAN
20h 39m
Trip: 4 days
5.6OkayShow reviews
Overall 5.6 Okay
Based on 33276 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
PHL
MCO
Mediocre 2.3

Its a scam! They act like they are giving you a break by having you buy cheap flights but in reality it costs more than a bit more expensive flight. I had to pay $45.00 each bag no matter if it was checked or carry-on. In total round trip I paid $180.00 extra just for my husbands carry-on as well as mine. Must add that our flights together cost 286.00. We should of went with American Airlines. On top of that we couldn't select our own seat if so, we had to pay extra, so we had to sit separated from each other. It was ridiculous! Never Again with this company!!!!!

DEN
MCO
Excellent 8.0

The fact that my checked baggage is confusing when they charged me it was only for one way. I was billed and then noticed it was only one way, so I had to re enter my credit card info twice. Seems to me they should assume I will be bringing back my suitcase and contents rather than that I would be leaving it.

SJU
ATL
Excellent 10.0

Fast luggage checking

No cash accepted for overweight baggage

MSY
PVD
Excellent 8.0

The price!

DEN
MKE
Good 6.6

Direct flight from Denver to Milwaukee. Didn't have to wait on tarmac so that was a plus.

Have to pay for every little thring down to the peanuts

Fri, Dec 22
SAN
ISP
24h 59m
Mon, Jan 8
ISP
SAN
20h 41m
Trip: 18 days
5.6OkayShow reviews
Overall 5.6 Okay
Based on 33276 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
MKE
TPA
Good 6.6

2nd row had plenty of leg room, nice new jet, Nice flight attendants, smooth flight, on time, made it to my destination safe. Successful flight! TSA Pre-chek was nice.

Idiot in front of me reclined his seat. Plane didn't get catered overnight. Water only.

SJU
ATL
Excellent 10.0

Fast luggage checking

No cash accepted for overweight baggage

DEN
SFO
Mediocre 2.0

Website would not let me check in the day before or the morning or my flight. There was an error every time and I almost got to the end once. I could not change the time of my transportation and arrived 10 minutes past the check in deadline (an hour prior to the flight taking off). I was refused access to the flight and offered a flight 5 hours later. The staff was rude and not helpful. I had heard negative things about Frontier and now I know why.

TYS
MCO
Okay 5.0

Great people

The plane wasn’t very clean

MSY
MCO
Excellent 10.0

Great crew great flight

Nothing, everything was awesome. Crazy to believe this was a 19 dollar flight

Fri, Dec 22
SAN
ISP
24h 59m
Fri, Jan 5
ISP
SAN
20h 41m
Trip: 15 days
5.6OkayShow reviews
Overall 5.6 Okay
Based on 33276 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
DEN
SFO
Mediocre 2.0

Website would not let me check in the day before or the morning or my flight. There was an error every time and I almost got to the end once. I could not change the time of my transportation and arrived 10 minutes past the check in deadline (an hour prior to the flight taking off). I was refused access to the flight and offered a flight 5 hours later. The staff was rude and not helpful. I had heard negative things about Frontier and now I know why.

SJU
ATL
Excellent 10.0

Fast luggage checking

No cash accepted for overweight baggage

LAS
IAD
Good 6.3

The staff on the flight was awesome, very helpful and kind to my friend who is terrified to fly. We were even ahead of schedule.

To pay for a carry on item is just crazy to me... not to mention you have to pay for beverages and snacks. All you are given is water.

PHL
MCO
Mediocre 2.3

Its a scam! They act like they are giving you a break by having you buy cheap flights but in reality it costs more than a bit more expensive flight. I had to pay $45.00 each bag no matter if it was checked or carry-on. In total round trip I paid $180.00 extra just for my husbands carry-on as well as mine. Must add that our flights together cost 286.00. We should of went with American Airlines. On top of that we couldn't select our own seat if so, we had to pay extra, so we had to sit separated from each other. It was ridiculous! Never Again with this company!!!!!

MSY
MCO
Excellent 10.0

Great crew great flight

Nothing, everything was awesome. Crazy to believe this was a 19 dollar flight

Fri, Dec 29
SAN
ISP
24h 59m
Mon, Jan 1
ISP
SAN
21h 09m
$1145
Trip: 4 days
5.6OkayShow reviews
Overall 5.6 Okay
Based on 33276 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
DEN
SFO
Mediocre 2.0

Website would not let me check in the day before or the morning or my flight. There was an error every time and I almost got to the end once. I could not change the time of my transportation and arrived 10 minutes past the check in deadline (an hour prior to the flight taking off). I was refused access to the flight and offered a flight 5 hours later. The staff was rude and not helpful. I had heard negative things about Frontier and now I know why.

MKE
TPA
Good 6.6

2nd row had plenty of leg room, nice new jet, Nice flight attendants, smooth flight, on time, made it to my destination safe. Successful flight! TSA Pre-chek was nice.

Idiot in front of me reclined his seat. Plane didn't get catered overnight. Water only.

DEN
MKE
Good 6.6

Direct flight from Denver to Milwaukee. Didn't have to wait on tarmac so that was a plus.

Have to pay for every little thring down to the peanuts

LAS
IAD
Good 6.3

The staff on the flight was awesome, very helpful and kind to my friend who is terrified to fly. We were even ahead of schedule.

To pay for a carry on item is just crazy to me... not to mention you have to pay for beverages and snacks. All you are given is water.

MSY
PVD
Excellent 8.0

The price!

*
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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.