Find Cheap Flights from Islip Long Island to Portland (ISP - PDX)

Search hundreds of travel sites at once for deals on flights to Portland

Fri 2/23
Fri 3/2
Any month
Compare vs. KAYAK |

Top tips for Finding a Cheap Flight

Looking for a cheap flight? 25% of our users found flights on this route for $383 or less.

FAQs for Booking Islip Long Island to Portland Flights

How long does a flight from Islip Long Island to Portland take?
An average nonstop flight takes 11h 15m, covering a distance of 2475 miles.
Which airlines provide the cheapest flights from Islip Long Island to Portland?
In the past 3 days, the cheapest round-trip tickets were found on Multiple Airlines ($297) and American Airlines ($846)
Do I need a passport to fly between Islip Long Island and Portland?
No.
What’s the cheapest day of the week to fly Islip Long Island to Portland?
For Islip Long Island to Portland, Saturday is the cheapest day to fly on average and Thursday is the most expensive. Flying from Portland 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 Portland (round-trip)

Airports
Origin
Islip
$297
only
$297
Destination
Portland
$297
only
$297
Sat, Apr 14
ISP
PDX
17h 20m
Tue, Apr 17
PDX
ISP
19h 37m
Trip: 4 days
Overall 0.0 Poor
Based on 0 reviews
Wed, Apr 25
ISP
PDX
17h 20m
Mon, Apr 30
PDX
ISP
19h 04m
Trip: 6 days
Overall 0.0 Poor
Based on 0 reviews
Thu, Apr 26
ISP
PDX
17h 20m
Mon, Apr 30
PDX
ISP
19h 04m
Trip: 5 days
Overall 0.0 Poor
Based on 0 reviews
Fri, Aug 17
ISP
PDX
11h 15m
Mon, Aug 27
PDX
ISP
11h 05m
Trip: 11 days
7.2GoodShow reviews
Overall 7.2 Good
Based on 28416 reviews
Overall
7.4
Boarding
7.5
Comfort
7.1
Crew
7.8
Entertainment
6.7
Food
6.6
DFW
GRR
Excellent 9.0

Everything worked the way it was supposed to. Bag transfer through customs and transfer to domestic was easy.

Snacks and food in general on US operated airlines is generally sad. American Airlines should learn from Qantas about food quality and service.

BOS
DFW
Excellent 10.0

Everything is excellent!!

BWI
ORD
Excellent 8.6

Nothing special

BWI check-in crew is not friendly, not related to Japan Airline.

IND
LAX
Excellent 10.0

The staff

The snack selection and lack of entertainment

SYD
LAX
Excellent 9.0

Premium economy is the way to go for a long haul flight. We were comfortable and able to get some sleep.

The crew on the way to Sydney was a little more present. There was always someone milling in the galley between the business class and premium economy cabin. The crew returning came through the cabin often and were attentive if you asked for them but you had to seek them out.

Thu, Aug 2
ISP
PDX
17h 20m
Thu, Aug 9
PDX
ISP
19h 27m
Trip: 8 days
Overall 0.0 Poor
Based on 0 reviews
Sun, Aug 19
ISP
PDX
11h 15m
Mon, Aug 27
PDX
ISP
11h 05m
Trip: 9 days
7.2GoodShow reviews
Overall 7.2 Good
Based on 28416 reviews
Overall
7.4
Boarding
7.5
Comfort
7.1
Crew
7.8
Entertainment
6.7
Food
6.6
DFW
GRR
Excellent 9.0

Everything worked the way it was supposed to. Bag transfer through customs and transfer to domestic was easy.

Snacks and food in general on US operated airlines is generally sad. American Airlines should learn from Qantas about food quality and service.

BWI
ORD
Excellent 8.6

Nothing special

BWI check-in crew is not friendly, not related to Japan Airline.

LAX
ORD
Good 7.6

I liked having the built in screen on the a321. Americans streaming service has lots to offer but the built in screens have more choices. I get why they want to just offer the streaming but I appreciate all the choices! There was a group number enforcer at the gate to make boarding more organized! She was polite but told the mobs that try to use the premium line to wait their turn.

I asked for upgrades to and from Chicago. I’m a gold member and fly for leisure fairly often. There are so many people looking for an upgrade these days that you’re rarely getting the opportunity

BOS
DFW
Excellent 10.0

Everything is excellent!!

CLT
CLE
Okay 5.2

Plane was delayed 1.5 hours. Rental Car reservation was at a location 30 miles from the airport, not the airport rental location. Had to transfer reservations which cost an extra $30...

Tue, Aug 21
ISP
PDX
11h 15m
Sat, Aug 25
PDX
ISP
11h 05m
Trip: 5 days
7.2GoodShow reviews
Overall 7.2 Good
Based on 28416 reviews
Overall
7.4
Boarding
7.5
Comfort
7.1
Crew
7.8
Entertainment
6.7
Food
6.6
ORD
DFW
Excellent 8.6

The customer service/ticket agent skipped her lunch break to get us on the plane. She went way beyond the call of duty. We will be eternally grateful.

BWI
ORD
Excellent 8.6

Nothing special

BWI check-in crew is not friendly, not related to Japan Airline.

SYD
LAX
Excellent 9.0

Premium economy is the way to go for a long haul flight. We were comfortable and able to get some sleep.

The crew on the way to Sydney was a little more present. There was always someone milling in the galley between the business class and premium economy cabin. The crew returning came through the cabin often and were attentive if you asked for them but you had to seek them out.

LAX
AKL
Okay 4.0

American wins tge coach torture contest!

BOS
DFW
Excellent 10.0

Everything is excellent!!

Fri, Jul 6
ISP
PDX
13h 32m
Mon, Jul 9
PDX
ISP
12h 10m
Trip: 4 days
Overall 0.0 Poor
Based on 0 reviews
Wed, Aug 22
ISP
PDX
11h 15m
Sun, Aug 26
PDX
ISP
11h 05m
Trip: 5 days
7.2GoodShow reviews
Overall 7.2 Good
Based on 28416 reviews
Overall
7.4
Boarding
7.5
Comfort
7.1
Crew
7.8
Entertainment
6.7
Food
6.6
ORD
DFW
Excellent 8.6

The customer service/ticket agent skipped her lunch break to get us on the plane. She went way beyond the call of duty. We will be eternally grateful.

BOS
DFW
Excellent 10.0

Everything is excellent!!

IND
LAX
Excellent 10.0

The staff

The snack selection and lack of entertainment

ORD
LAX
Okay 4.0

Packed like sardines; the seats are getting narrower and the seat pockets are ridiculously small.

LAX
ORD
Good 7.6

I liked having the built in screen on the a321. Americans streaming service has lots to offer but the built in screens have more choices. I get why they want to just offer the streaming but I appreciate all the choices! There was a group number enforcer at the gate to make boarding more organized! She was polite but told the mobs that try to use the premium line to wait their turn.

I asked for upgrades to and from Chicago. I’m a gold member and fly for leisure fairly often. There are so many people looking for an upgrade these days that you’re rarely getting the opportunity

Thu, Aug 23
ISP
PDX
11h 15m
Mon, Aug 27
PDX
ISP
11h 05m
Trip: 5 days
7.2GoodShow reviews
Overall 7.2 Good
Based on 28416 reviews
Overall
7.4
Boarding
7.5
Comfort
7.1
Crew
7.8
Entertainment
6.7
Food
6.6
BWI
ORD
Excellent 8.6

Nothing special

BWI check-in crew is not friendly, not related to Japan Airline.

CLT
CLE
Okay 5.2

Plane was delayed 1.5 hours. Rental Car reservation was at a location 30 miles from the airport, not the airport rental location. Had to transfer reservations which cost an extra $30...

SYD
LAX
Excellent 9.0

Premium economy is the way to go for a long haul flight. We were comfortable and able to get some sleep.

The crew on the way to Sydney was a little more present. There was always someone milling in the galley between the business class and premium economy cabin. The crew returning came through the cabin often and were attentive if you asked for them but you had to seek them out.

LAX
AKL
Okay 4.0

American wins tge coach torture contest!

MKE
PHX
Okay 5.6

The crew was lovely. Really nice, and did a wonderful job with the cart service.

We ended up being deleyed about 30 minutes, in damp weather. It's not like it was snowing. Not sure why it took so long. B/c of baggage charges now everyone brings a carry on. This seems to slow the process of boarding as know passengers are asked multiple times to check baggage (for free, which is the one nice thing) before boarding b/c the overheads will be too full. Group 6 which I was in seemed like it was just the rest of the plane. Super busy, took me forever to get to my seat all the way in the back. Why don't airlines reverse board? People sitting in the back should board first. I feel like this would save so much time.

Mon, Aug 20
ISP
PDX
11h 15m
Sat, Aug 25
PDX
ISP
11h 05m
Trip: 6 days
7.2GoodShow reviews
Overall 7.2 Good
Based on 28416 reviews
Overall
7.4
Boarding
7.5
Comfort
7.1
Crew
7.8
Entertainment
6.7
Food
6.6
MKE
PHX
Okay 5.6

The crew was lovely. Really nice, and did a wonderful job with the cart service.

We ended up being deleyed about 30 minutes, in damp weather. It's not like it was snowing. Not sure why it took so long. B/c of baggage charges now everyone brings a carry on. This seems to slow the process of boarding as know passengers are asked multiple times to check baggage (for free, which is the one nice thing) before boarding b/c the overheads will be too full. Group 6 which I was in seemed like it was just the rest of the plane. Super busy, took me forever to get to my seat all the way in the back. Why don't airlines reverse board? People sitting in the back should board first. I feel like this would save so much time.

LAX
AKL
Okay 4.0

American wins tge coach torture contest!

SYD
LAX
Excellent 9.0

Premium economy is the way to go for a long haul flight. We were comfortable and able to get some sleep.

The crew on the way to Sydney was a little more present. There was always someone milling in the galley between the business class and premium economy cabin. The crew returning came through the cabin often and were attentive if you asked for them but you had to seek them out.

BOS
DFW
Excellent 10.0

Everything is excellent!!

BWI
ORD
Excellent 8.6

Nothing special

BWI check-in crew is not friendly, not related to Japan Airline.

Sun, Aug 19
ISP
PDX
11h 15m
Tue, Aug 21
PDX
ISP
11h 05m
Trip: 3 days
7.2GoodShow reviews
Overall 7.2 Good
Based on 28416 reviews
Overall
7.4
Boarding
7.5
Comfort
7.1
Crew
7.8
Entertainment
6.7
Food
6.6
DFW
GRR
Excellent 9.0

Everything worked the way it was supposed to. Bag transfer through customs and transfer to domestic was easy.

Snacks and food in general on US operated airlines is generally sad. American Airlines should learn from Qantas about food quality and service.

LAX
AKL
Okay 4.0

American wins tge coach torture contest!

ORD
DFW
Excellent 8.6

The customer service/ticket agent skipped her lunch break to get us on the plane. She went way beyond the call of duty. We will be eternally grateful.

ORD
LAX
Okay 4.0

Packed like sardines; the seats are getting narrower and the seat pockets are ridiculously small.

LAX
MIA
Okay 4.0

The low fare was the best part of the flight, but I later found that it came at a cost!!!!

First of all the Crew was rude and their lack of patience was obvious, the flight was delayed and was no fault of any of the passengers yet we were made to feel as if it was our ( passengers) fault. Secondly, the air was turned down, I guess to conserve fuel, and the plane was unbearably hot, And at no time was food offered for purchase or even a beverage service. I have flow AA for 20+ years and this was the FURST flight I have ever experienced. Sadly I believe it will be my last!!!!

Mon, Aug 20
ISP
PDX
11h 15m
Wed, Aug 22
PDX
ISP
11h 05m
Trip: 3 days
7.2GoodShow reviews
Overall 7.2 Good
Based on 28416 reviews
Overall
7.4
Boarding
7.5
Comfort
7.1
Crew
7.8
Entertainment
6.7
Food
6.6
MKE
PHX
Okay 5.6

The crew was lovely. Really nice, and did a wonderful job with the cart service.

We ended up being deleyed about 30 minutes, in damp weather. It's not like it was snowing. Not sure why it took so long. B/c of baggage charges now everyone brings a carry on. This seems to slow the process of boarding as know passengers are asked multiple times to check baggage (for free, which is the one nice thing) before boarding b/c the overheads will be too full. Group 6 which I was in seemed like it was just the rest of the plane. Super busy, took me forever to get to my seat all the way in the back. Why don't airlines reverse board? People sitting in the back should board first. I feel like this would save so much time.

DFW
GRR
Excellent 9.0

Everything worked the way it was supposed to. Bag transfer through customs and transfer to domestic was easy.

Snacks and food in general on US operated airlines is generally sad. American Airlines should learn from Qantas about food quality and service.

ORD
LAX
Okay 4.0

Packed like sardines; the seats are getting narrower and the seat pockets are ridiculously small.

LAX
ORD
Good 7.6

I liked having the built in screen on the a321. Americans streaming service has lots to offer but the built in screens have more choices. I get why they want to just offer the streaming but I appreciate all the choices! There was a group number enforcer at the gate to make boarding more organized! She was polite but told the mobs that try to use the premium line to wait their turn.

I asked for upgrades to and from Chicago. I’m a gold member and fly for leisure fairly often. There are so many people looking for an upgrade these days that you’re rarely getting the opportunity

SYD
LAX
Excellent 9.0

Premium economy is the way to go for a long haul flight. We were comfortable and able to get some sleep.

The crew on the way to Sydney was a little more present. There was always someone milling in the galley between the business class and premium economy cabin. The crew returning came through the cabin often and were attentive if you asked for them but you had to seek them out.

Tue, Mar 13
ISP
PDX
18h 11m
Sat, Mar 17
PDX
ISP
9h 49m
$1219
Trip: 5 days
Overall 0.0 Poor
Based on 0 reviews
Tue, Aug 21
ISP
PDX
11h 15m
Thu, Aug 23
PDX
ISP
11h 05m
Trip: 3 days
7.2GoodShow reviews
Overall 7.2 Good
Based on 28416 reviews
Overall
7.4
Boarding
7.5
Comfort
7.1
Crew
7.8
Entertainment
6.7
Food
6.6
LAX
AKL
Okay 4.0

American wins tge coach torture contest!

BWI
ORD
Excellent 8.6

Nothing special

BWI check-in crew is not friendly, not related to Japan Airline.

DFW
GRR
Excellent 9.0

Everything worked the way it was supposed to. Bag transfer through customs and transfer to domestic was easy.

Snacks and food in general on US operated airlines is generally sad. American Airlines should learn from Qantas about food quality and service.

CLT
CLE
Okay 5.2

Plane was delayed 1.5 hours. Rental Car reservation was at a location 30 miles from the airport, not the airport rental location. Had to transfer reservations which cost an extra $30...

MKE
PHX
Okay 5.6

The crew was lovely. Really nice, and did a wonderful job with the cart service.

We ended up being deleyed about 30 minutes, in damp weather. It's not like it was snowing. Not sure why it took so long. B/c of baggage charges now everyone brings a carry on. This seems to slow the process of boarding as know passengers are asked multiple times to check baggage (for free, which is the one nice thing) before boarding b/c the overheads will be too full. Group 6 which I was in seemed like it was just the rest of the plane. Super busy, took me forever to get to my seat all the way in the back. Why don't airlines reverse board? People sitting in the back should board first. I feel like this would save so much time.

Wed, Aug 22
ISP
PDX
11h 15m
Fri, Aug 24
PDX
ISP
11h 05m
Trip: 3 days
7.2GoodShow reviews
Overall 7.2 Good
Based on 28416 reviews
Overall
7.4
Boarding
7.5
Comfort
7.1
Crew
7.8
Entertainment
6.7
Food
6.6
ORD
LAX
Okay 4.0

Packed like sardines; the seats are getting narrower and the seat pockets are ridiculously small.

ORD
DFW
Excellent 8.6

The customer service/ticket agent skipped her lunch break to get us on the plane. She went way beyond the call of duty. We will be eternally grateful.

CLT
CLE
Okay 5.2

Plane was delayed 1.5 hours. Rental Car reservation was at a location 30 miles from the airport, not the airport rental location. Had to transfer reservations which cost an extra $30...

LAX
MIA
Okay 4.0

The low fare was the best part of the flight, but I later found that it came at a cost!!!!

First of all the Crew was rude and their lack of patience was obvious, the flight was delayed and was no fault of any of the passengers yet we were made to feel as if it was our ( passengers) fault. Secondly, the air was turned down, I guess to conserve fuel, and the plane was unbearably hot, And at no time was food offered for purchase or even a beverage service. I have flow AA for 20+ years and this was the FURST flight I have ever experienced. Sadly I believe it will be my last!!!!

LAX
AKL
Okay 4.0

American wins tge coach torture contest!

Thu, Mar 29
ISP
PDX
13h 16m
Mon, Apr 2
PDX
ISP
11h 26m
$1343
Trip: 5 days
Overall 0.0 Poor
Based on 0 reviews
Thu, Aug 23
ISP
PDX
11h 15m
Fri, Aug 24
PDX
ISP
11h 05m
Trip: 2 days
7.2GoodShow reviews
Overall 7.2 Good
Based on 28416 reviews
Overall
7.4
Boarding
7.5
Comfort
7.1
Crew
7.8
Entertainment
6.7
Food
6.6
DFW
GRR
Excellent 9.0

Everything worked the way it was supposed to. Bag transfer through customs and transfer to domestic was easy.

Snacks and food in general on US operated airlines is generally sad. American Airlines should learn from Qantas about food quality and service.

IND
LAX
Excellent 10.0

The staff

The snack selection and lack of entertainment

MKE
PHX
Okay 5.6

The crew was lovely. Really nice, and did a wonderful job with the cart service.

We ended up being deleyed about 30 minutes, in damp weather. It's not like it was snowing. Not sure why it took so long. B/c of baggage charges now everyone brings a carry on. This seems to slow the process of boarding as know passengers are asked multiple times to check baggage (for free, which is the one nice thing) before boarding b/c the overheads will be too full. Group 6 which I was in seemed like it was just the rest of the plane. Super busy, took me forever to get to my seat all the way in the back. Why don't airlines reverse board? People sitting in the back should board first. I feel like this would save so much time.

LAX
ORD
Good 7.6

I liked having the built in screen on the a321. Americans streaming service has lots to offer but the built in screens have more choices. I get why they want to just offer the streaming but I appreciate all the choices! There was a group number enforcer at the gate to make boarding more organized! She was polite but told the mobs that try to use the premium line to wait their turn.

I asked for upgrades to and from Chicago. I’m a gold member and fly for leisure fairly often. There are so many people looking for an upgrade these days that you’re rarely getting the opportunity

ORD
DFW
Excellent 8.6

The customer service/ticket agent skipped her lunch break to get us on the plane. She went way beyond the call of duty. We will be eternally grateful.

Fri, Mar 30
ISP
PDX
19h 54m
Thu, Apr 5
PDX
ISP
14h 33m
Trip: 7 days
7.2GoodShow reviews
Overall 7.2 Good
Based on 28416 reviews
Overall
7.4
Boarding
7.5
Comfort
7.1
Crew
7.8
Entertainment
6.7
Food
6.6
SYD
LAX
Excellent 9.0

Premium economy is the way to go for a long haul flight. We were comfortable and able to get some sleep.

The crew on the way to Sydney was a little more present. There was always someone milling in the galley between the business class and premium economy cabin. The crew returning came through the cabin often and were attentive if you asked for them but you had to seek them out.

ORD
LAX
Okay 4.0

Packed like sardines; the seats are getting narrower and the seat pockets are ridiculously small.

IND
LAX
Excellent 10.0

The staff

The snack selection and lack of entertainment

LAX
ORD
Good 7.6

I liked having the built in screen on the a321. Americans streaming service has lots to offer but the built in screens have more choices. I get why they want to just offer the streaming but I appreciate all the choices! There was a group number enforcer at the gate to make boarding more organized! She was polite but told the mobs that try to use the premium line to wait their turn.

I asked for upgrades to and from Chicago. I’m a gold member and fly for leisure fairly often. There are so many people looking for an upgrade these days that you’re rarely getting the opportunity

LAX
MIA
Okay 4.0

The low fare was the best part of the flight, but I later found that it came at a cost!!!!

First of all the Crew was rude and their lack of patience was obvious, the flight was delayed and was no fault of any of the passengers yet we were made to feel as if it was our ( passengers) fault. Secondly, the air was turned down, I guess to conserve fuel, and the plane was unbearably hot, And at no time was food offered for purchase or even a beverage service. I have flow AA for 20+ years and this was the FURST flight I have ever experienced. Sadly I believe it will be my last!!!!

Mon, Aug 20
ISP
PDX
11h 15m
Tue, Aug 21
PDX
ISP
11h 05m
$1126
Trip: 2 days
7.2GoodShow reviews
Overall 7.2 Good
Based on 28416 reviews
Overall
7.4
Boarding
7.5
Comfort
7.1
Crew
7.8
Entertainment
6.7
Food
6.6
IND
LAX
Excellent 10.0

The staff

The snack selection and lack of entertainment

MKE
PHX
Okay 5.6

The crew was lovely. Really nice, and did a wonderful job with the cart service.

We ended up being deleyed about 30 minutes, in damp weather. It's not like it was snowing. Not sure why it took so long. B/c of baggage charges now everyone brings a carry on. This seems to slow the process of boarding as know passengers are asked multiple times to check baggage (for free, which is the one nice thing) before boarding b/c the overheads will be too full. Group 6 which I was in seemed like it was just the rest of the plane. Super busy, took me forever to get to my seat all the way in the back. Why don't airlines reverse board? People sitting in the back should board first. I feel like this would save so much time.

BWI
ORD
Excellent 8.6

Nothing special

BWI check-in crew is not friendly, not related to Japan Airline.

LAX
ORD
Good 7.6

I liked having the built in screen on the a321. Americans streaming service has lots to offer but the built in screens have more choices. I get why they want to just offer the streaming but I appreciate all the choices! There was a group number enforcer at the gate to make boarding more organized! She was polite but told the mobs that try to use the premium line to wait their turn.

I asked for upgrades to and from Chicago. I’m a gold member and fly for leisure fairly often. There are so many people looking for an upgrade these days that you’re rarely getting the opportunity

ORD
DFW
Excellent 8.6

The customer service/ticket agent skipped her lunch break to get us on the plane. She went way beyond the call of duty. We will be eternally grateful.

Islip Long Island to Portland Flight Information

Flights Arrive in Portland
Flights Depart from Islip Long Island
Flight Price $297
Distance 2475 miles
Airlines American Airlines
*
Prices are per person and are for e–tickets and include all taxes & fees in USD.

We attempt to get accurate prices, however, prices are not guaranteed.

Here's why:

We’re not the seller.
At KAYAK we don’t set the prices, so it’s not possible for us to guarantee what other companies are selling.

We compile tonnes of data for you
Our service lets you quickly and easily compare results from hundreds of travel sites at once. In this sense, KAYAK is a search engine and we can't guarantee prices we find.

Why aren’t prices accurate 100% of the time?
Prices on airline seats, hotel rooms and car rentals can change frequently. Several people may also be trying to buy the same travel option simultaneously. As a result, you may find, on occasion, that certain prices are no longer available.

If you have more questions or if you have a bad price to report to us,
please send us an and someone from our team will get back to you promptly.

^
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.