Cheap flights from Missoula to New York from $645

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Missoula to New York departing on 9/8. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Missoula to New York (MSO-ISP)

Cheap round-trip flights

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MSO-ISP
2060 mimulti-stop
Multiple Airlines Logo
ISP-MSO
2060 mimulti-stop
Multiple Airlines
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momondo Fare Finder

 
Customize your flight search to find flights from Missoula to Islip that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated August 26, 2025.
Use the filters below to find and compare flights from Missoula to Islip that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

MissoulaIslip

MSO - ISP

MSOISP

Missoula Johnson-Bell Field

Mon 9/8

2:14 pm-10:58 am

2 stops18h 44m

$645

MissoulaIslip

MSO - ISP

MSOISP

Missoula Johnson-Bell Field

Mon 9/8

2:14 pm-10:58 am

2 stops18h 44m

$724

MissoulaIslip

MSO - ISP

MSOISP

Missoula Johnson-Bell Field

Tue 9/9

2:14 pm-1:24 pm

2 stops21h 10m

$810

MissoulaIslip

MSO - ISP

MSOISP

Missoula Johnson-Bell Field

Sun 9/7

6:40 pm-10:58 am

2 stops14h 18m

$1,022

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

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How to get the cheapest flight ticket from Missoula to Islip

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 airlines fly to Islip?

Delta, American Airlines and United Airlines are the top three most popular airlines that fly to Islip from Missoula according to our data. Delta is the first choice among our users, with 30% of people opting to fly with this airline when traveling to Islip. Keep in mind that there are 4 different airlines that fly to Islip on a routine basis, so you have a few additional options to choose from.

When to book flights from Missoula to Islip

Are you open to changing your travel dates? Check out the ideal times to fly from Missoula to Islip according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Missoula to Islip (MSO to ISP) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Missoula to Islip

Direct flights

None
There are no direct flights from Missoula to Islip. There are no popular flight routes from Missoula to Islip.
  • How far is Missoula Johnson-Bell Field to Islip Long Island by plane?

    Missoula Johnson-Bell Field and Islip Long Island are 2052.0 mi apart from one another.

  • When did momondo last update prices for flights from Missoula Johnson-Bell Field Airport to Islip Long Island Airport?

    Prices for flights from Missoula Johnson-Bell Field Airport to Islip Long Island Airport refresh daily.

  • How old do you have to be to fly from Missoula Johnson-Bell Field Airport to Islip Long Island Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Missoula Johnson-Bell Field Airport to Islip Long Island Airport.

  • What documentation or ID do you need to fly to Islip Long Island Airport?

    The travel and health documents required for your trip to Islip Long Island Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Islip Long Island Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Traveling to a place near New York?

Book flights to New York if you plan to visit one of these locations
Montauk
Riverhead
Sag Harbor
Southampton
Amagansett

Why use momondo?

Why should I use momondo to find a flight deal from Missoula to Islip?

It is quick and easy to find Missoula to Islip flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Islip that suits you.

Can I find flights from Missoula to Islip with flexible booking policies on momondo?

Yes. All flights to Islip from Missoula on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Missoula to Islip?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Missoula to Islip.

I’m not ready to book a flight from Missoula to Islip right now. Can momondo alert me if prices change?

Price alerts on flights to Islip from Missoula are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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1 adult
Sun 8/31
Sun 9/7

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