Save money when you book flights with momondo
Big names and deals
Big names and deals
Search 100s of travel sites to compare prices.Filter for what you want
Filter for what you want
Free Wi-Fi? Stopover? Instantly customize your results.Trusted and free
Trusted and free
We’re completely free to use - no hidden charges or fees.Price Alerts
Price Alerts
Not ready to book? to track prices.Find the cheapest flights from Islip, New York to Portland
Cheap round-trip flights
Cheap one-way flights
Cheap last minute flights
Southwest flights from Islip, New York to Portland, Maine
Our best Southwest deals on Islip, New York to Portland, Maine flight tickets
Breeze Airways flights from Islip, New York to Portland, Maine
Our best Breeze Airways deals on Islip, New York to Portland, Maine flight tickets
See travel insights to Portland from
How to get the cheapest flight ticket from Islip, New York to Portland, Maine
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the cheapest month to fly to Portland, Maine?
The cheapest month to fly to Portland, Maine from Islip, New York is in June. Flight prices, which tend to average around $95, are often lower during this time because this is during the off-season. If you aren’t able to travel to Portland, Maine during the month of June, then flying in July is also cheap. Prices for this month can be found on momondo for an average of $126.
What is the cheapest day to depart on your flight to Portland, Maine?
On average, the least expensive day to fly to Portland, Maine from Islip, New York is on a Tuesday. momondo users have found tickets for Tuesday departures for as low as $199. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Friday is the most expensive day to depart from Islip, New York because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $274.
What is the cheapest time of day to depart on your flight to Portland, Maine?
In the afternoon is the cheapest time of day to fly from Islip, New York to Portland, Maine when you can find flight prices for as low as $204. Flying to Portland, Maine in the afternoon is an ideal time because this is during off-peak travel hours. Try not to purchase tickets at noon because they tend to be around $273. Of course, these prices can vary depending on the time of year and what airport you fly to.
What is the cheapest Islip Long Island to Portland flight route?
Fly from Islip Long Island to Portland for the best Islip Long Island - Portland flight prices
What is the cheapest airline that flies from Islip Long Island to Portland?
Southwest and Breeze Airways are the most popular carriers operating from Islip Long Island to Portland
What airlines fly to Portland, Maine?
United Airlines, JetBlue and Delta are the top three most popular airlines that fly to Portland, Maine from Islip, New York according to our data. United Airlines is the first choice among our users, with 40% of people opting to fly with this airline when traveling to Portland, Maine. Keep in mind that there are 7 different airlines that fly to Portland, Maine on a routine basis, so you have a few additional options to choose from.
When to book flights from Islip, New York to Portland, Maine
Cheap Islip, New York to Portland, Maine (ISP to PWM) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Islip, New York to Portland, Maine
How far is Islip Long Island to Portland by plane?
There are 252.6 mi between Islip Long Island and Portland. A reasonable flight in good conditions will take 3h 45m.
When did momondo last update prices for flights from Islip Long Island Airport to Portland Airport?
Prices for flights from Islip Long Island Airport to Portland Airport were last updated today.
How many operators does momondo search for flights from Islip Long Island Airport to Portland Airport?
As of April 2025, there are 2 operators available to choose from for flights from Islip Long Island Airport to Portland Airport.
How old do you have to be to fly from Islip Long Island Airport to Portland Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Islip Long Island Airport to Portland Airport.
What documentation or ID do you need to fly to Portland Airport?
The required travel and health documents for your Portland Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Portland Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular plane model from Islip, New York to Portland, Maine?
Based on momondo bookings for flights between Islip, New York and Portland, Maine, the leading plane model is Embraer 190, making up 24.00% of the total bookings. Other popular models include Embraer 175 with 24.00%, Embraer 175 (Enhanced Winglets) with 12.00%, and Airbus A220-300 with 12.00%.
What is the most popular airline from Islip, New York to Portland, Maine?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Islip, New York to Portland, Maine is Breeze Airways (72% of total bookings). The next most popular airline is Southwest (28%).
Best airlines flying from Islip, New York to Portland, Maine
Compare and see reviews for airlines that fly from Islip, New York to Portland, Maine with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $95 | Free Cancellation | Rating 8.1 160 reviews | |||
| PriceFrom $254 | Free Cancellation | Rating 8.0 4,294 reviews |
Traveling to a place near Portland?
Book flights to Portland if you plan to visit one of these locationsWhy use momondo?
Why should I use momondo to find a flight deal from Islip to Portland?
We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Islip to Portland for you.
Can I find flights from Islip to Portland with flexible booking policies on momondo?
Flights from Islip to Portland with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.
How can momondo help me find flights from Islip to Portland?
Once you have performed a search for Islip to Portland flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.
I’m not ready to book a flight from Islip to Portland right now. Can momondo alert me if prices change?
If you are not ready to book a flight from Islip to Portland now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Portland and let you know when they change.