Flight deals from Portland to Islip
Find the cheapest flight options from Portland to Islip over the next three months. Book one-way tickets from MXN$2,806 and round-trip tickets from MXN$8,082.
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PWM 16:3518h 50m1 stopISP 11:25Portland - Islip | Wed, Dec 17 | Jetblue Airways
ISP 14:0425h 21m1 stopPWM 15:25Islip - Portland | Sun, Dec 21 | Frontier AirlinesMXN$8,082 MXN$8,98010% OFF10% OFFMXN$8,980 MXN$8,082 -
PWM 13:0017h 25m1 stopISP Invalid DatePortland - Islip | Sat, Dec 13 | Normal Airline
ISP 15:006hDirectPWM 16:00Islip - Portland | Mon, Dec 15 | Normal AirlineFind More FlightsFind More Flights
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PWM 16:2926h 45m1 stopISP 19:14Portland - Islip | Mon, Dec 15 | Jetblue AirwaysMXN$2,806 MXN$3,34616% OFF16% OFFMXN$3,346 MXN$2,806 -
PWM 15:4522h 54m1 stopISP 14:39Portland - Islip | Wed, Jan 7 | Jetblue AirwaysMXN$3,011 MXN$3,34610% OFF10% OFFMXN$3,346 MXN$3,011 -
PWM 13:0017h 25m1 stopISP Invalid DatePortland - Islip | Sat, Dec 13 | Normal AirlineFind More FlightsFind More Flights
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Displayed flight fares from Portland to Islip are based on average prices across airlines for the next 3 months, according to the latest Trip.com database.
Flight details for Portland to Islip
The distance between Portland and Islip is 391.5 km. Based on Trip.com's data, travel demand peaks in September. The off-season for travel is August.
| Cheapest one-way flight price | MXN$2,806 |
|---|---|
| Cheapest round-trip ticket price | MXN$8,082 |
| Off-season for travel | August |
| Peak season for travel | September |
| Flight distance | 391.5 km |
Find the best time to fly from Portland to Islip
The cheapest time for Portland to Islip flights: Jan 4 to Jan 11 — one way flight prices from MXN$2,314.
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Displayed fare trends are based on Trip.com's aggregated average of the lowest flight prices from Portland to Islip, calculated over the upcoming 10 weeks.
Flight FAQs
What are the cheapest flights from Portland to Islip (PWM-ISP)?
Based on Trip.com data, Jetblue Airways offers one-way fares as low as MXN$2,806 on Cheapest nonstop routes (e.g. PWM to ISP on Mon, Dec 15), while Jetblue Airways offers Cheapest nonstop round-trips from MXN$8,082 departing on Wed, Dec 17 and returning on Sun, Dec 21.When is the best time to book flights from Portland to Islip?
By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from Portland to Islip is around 40 days (6 weeks) in advance, and the best time to fly is usually on Tuesday, Wednesday, and Saturday. Tuesday typically offers the cheapest flights for departure, while Saturday offers the best return deals.How can I find the best deals on flights from Portland to Islip?
To find best deals on flights from Portland to Islip, you can use various tools on Trip.com:
· Be flexible with your travel dates to get the cheapest flight deal. Now the cheapest flight deal is on Mon, Dec 15, with one-way flights priced at just MXN$2,806.
· Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is Jetblue Airways.
· Set up price alerts to easily monitor ticket prices without having to check every day.
· Check Trip.com flight deals and promo codes frequently.
· Avoid peak season unless you book very early. It seems the peak season for Islip travel is around September.
· Get exclusive promo codes for Trip.com app users.When are flight tickets from Portland (PWM) to Islip (ISP) the cheapest?
The cheapest months to fly from Portland to Islip is August, when demand for travel is lower.Which upcoming date is cheapest to fly from Portland to Islip on?
After crunching the numbers on our December flight calendar, it's currently cheapest to fly from Portland to Islip on December 17, 2025 with Jetblue Airways, with prices starting at MXN8,082.Is there any time difference between Portland and Islip?
The time difference between Islip and Portland is 0h.How do I change or cancel my ticket from Portland to Islip?
Tickets can only be changed or canceled if permitted by airline policy. To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy. However, if the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.