Cheap Flights from Islip (ISP) to Missoula (MSO)

Popular airlines from MacArthur Airport (ISP) to Missoula Intl. Airport (MSO)

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Frequently asked questions

How much does a flight from MacArthur Airport (ISP) to Missoula Intl. Airport (MSO) cost?
Get a cheap one-way flight or cheap return flight from MacArthur Airport (ISP) to Missoula Intl. Airport (MSO) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from MacArthur Airport (ISP) to Missoula Intl. Airport (MSO)?
The cheapest month to fly from ISP to MSO is , when demand is low. Off-peak months are generally when airlines offer better prices between these airports.
What is the cheapest airline that flies from MacArthur Airport (ISP) to Missoula Intl. Airport (MSO)?
To find the cheapest airline flying from ISP to MSO, use Expedia's filter tool. Customize your search based on what matters most to you, such as preferred carriers and number of stops. You can then sort your results by "Price (lowest to highest)" to see the most affordable options first.
How many flights per day from MacArthur Airport (ISP) to Missoula Intl. Airport (MSO)?
Nonstop flights from MacArthur Airport (ISP) to Missoula Intl. Airport (MSO) aren't available daily, so you'll have to take a flight with a layover. Explore your options with Expedia's filter tool. Enter your dates and choose either "1 Stop" or "2+ Stops."
What day of the week has the most flights from ISP to MSO?
Generally you'll find the greatest selection of flight options on a Friday. Tuesdays are often the quietest.* However, this can change based on the time of year, carrier and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from MacArthur Airport (ISP) to Missoula Intl. Airport (MSO)?
To reach Missoula Intl. Airport (MSO) on time, book a flight that leaves from MacArthur Airport (ISP) before 3 PM. The chance of cancellations is 22% higher, on average, for departures after this hour.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from MacArthur Airport (ISP) to Missoula Intl. Airport (MSO) last-minute?
Booking your flight from ISP to MSO shortly before your journey is usually more expensive. But if you're flexible with your departure dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book an ISP to MSO flight and hotel package?
You'll generally save money by booking an ISP to MSO flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it's easy to manage it all in one place. Once you've selected your ideal flights and accommodations, you can add extras like tours, activities and car rentals.
Can I cancel or change the date of my flight from MacArthur Airport (ISP) to Missoula Intl. Airport (MSO)?
It's usually possible to cancel or reschedule your ISP to MSO flight. However, if it's been more than 24 hours since booking, additional fees may apply. Refer to your airline's policies in your itinerary to see what changes are allowed and if any costs are involved. You'll also find more information on our Customer Service portal.

Travel information

Origin airport
MacArthur
Destination airport
Missoula Intl.
Distance
2060 mi

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Islip to Missoula Flights

The cheapest times to fly from Islip to Missoula

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Islip to Missoula are during the month of . You can find some of the cheapest flights from Islip to Missoula with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Islip to Missoula

Sunday is one of the best days to book for cheap flights from Islip to Missoula: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Islip to Missoula

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Islip to Missoula in 2026. You can also book with separate airlines for your outbound and return journeys, from one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Islip to Missoula flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Islip to Missoula airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Islip to Missoula Flights

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