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Cheap flights from Missoula to New York from $394

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 8/1. 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
1 adult, Economy, 0 bags

Find the cheapest flights from Missoula to New York

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
4:16 pm - 12:30 pm
MSO
-
ISP
18h 14m
2 stops
Multiple Airlines Logo
7:31 am - 11:01 pm
ISP
-
MSO
17h 30m
2 stops
$1,356Multiple Airlines
Thu, Sep 3 - Thu, Sep 10

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momondo Fare Finder

 
Customize your flight search to find flights from Missoula to Islip, New York 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 July 14, 2026.
Use the filters below to find and compare flights from Missoula to Islip, New York that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

MissoulaIslip

MSO - ISP

MSOISP

Missoula Johnson-Bell Field

Thu 9/3

4:16 pm-12:30 pm

2 stops18h 14m

Islip Long Island

Thu 9/10

7:31 am-11:01 pm

2 stops17h 30m

$1,356
Cheapest one-way
Quickest one-way

MissoulaIslip

MSO - ISP

MSOISP

Missoula Johnson-Bell Field

Sat 8/1

10:40 am-9:53 am

2 stops45h 13m

$394

MissoulaIslip

MSO - ISP

MSOISP

Missoula Johnson-Bell Field

Sat 8/1

10:40 am-9:53 am

3 stops45h 13m

$412

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

See travel insights to New York from

How to get the cheapest flight ticket from Missoula to Islip, New York

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, New York?

United Airlines, Delta and Alaska Airlines are the top three most popular airlines that fly to Islip, New York from Missoula according to our data. United Airlines is the first choice among our users, with 50% of people opting to fly with this airline when traveling to Islip, New York. Keep in mind that there are 4 different airlines that fly to Islip, New York on a routine basis, so you have a few additional options to choose from.

When to book flights from Missoula to Islip, New York

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

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

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

Fastest flight time

18h 14m

Direct flights

None
The fastest flight from Missoula to Islip, New York takes 18h 14m
There are no direct flights from Missoula to Islip, New York. There are no popular flight routes from Missoula to Islip, New York.
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Frequently asked questions about flying from Missoula to Islip, New York

  • 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. In terms of flight time, this usually takes a little over 18h 14m.

  • 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
Southampton
Sag Harbor
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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