Cheap flights from Islip, NY to Kalispell, MT
Choose between Frontier Airlines, Alaska Airlines, or Spirit Airlines to find the best price
Make your travel wishlist, we'll do the rest
Hidden deals
Kiwi-Code uncovers prices airlines don't want you to see.
Effortless booking
Use our flexible filters to tailor your search.
Travel hacking
Look out for the travel hack star icon for even cheaper fares.
Tips to know when travelling to Kalispell
Most popular airline | Frontier Airlines |
---|
Sorry, we couldn't find any results
Sorry, we couldn't find any results
Receive exclusive deals by email
By subscribing you agree to receive offers according to the conditions described in our Privacy Policy.
The most popular airlines for this route are Frontier Airlines, Alaska Airlines, Spirit Airlines, Allegiant Air, and JetBlue Airways. Islip and Kalispell have 32 direct flights per week.
Check-in for a flight from Islip to Kalispell
Name | Carrier code | IATA Code | Passport needed during booking | Online check-in available |
---|---|---|---|---|
Frontier Airlines | FFT | F9 | No | Opens 24 days before flight Closes 1 hours before flight |
Alaska Airlines | ASA | AS | No | Opens 24 days before flight Closes 1 hours before flight |
Spirit Airlines | NKS | NK | No | Opens 24 days before flight Closes 1 hours before flight |
Allegiant Air | AAY | G4 | No | Opens 24 days before flight Closes 1 hours before flight |
JetBlue Airways | JBU | B6 | No | Opens 24 days before flight Closes 2 hours before flight |
Weather in Kalispell
Average Weather
Month | Average monthly max temperature | Average monthly min temperature |
January | -3°C | -10°C |
February | -2°C | -10°C |
March | 3°C | -5°C |
April | 9°C | -1°C |
May | 16°C | 3°C |
June | 20°C | 7°C |
July | 27°C | 10°C |
August | 26°C | 10°C |
September | 20°C | 6°C |
October | 10°C | 0°C |
November | 1°C | -4°C |
December | -3°C | -9°C |
14 day forecast
Frequently asked questions
Planning a trip? Thanks to our Virtual Interlining algorithm, we offer billions of route combinations between any A and any B in the world by plane, train, and bus. Find the cheapest routes and best deals for you, as well as the best dates on which to travel.
Explore alternative trips
Flights from Islip
- Flights from Islip to Atlanta
- Flights from Islip to West Palm Beach
- Flights from Islip to Orlando
- Flights from Islip to Denver
- Flights from Islip to New York
- Flights from Islip to Las Vegas
- Flights from Islip to Chicago
- Flights from Islip to Miami
- Flights from Islip to Los Angeles
- Flights from Islip to Mexico City
- Flights from Islip to Bogotá
- Flights from Islip to Dallas
- Flights from Islip to Phoenix
- Flights from Islip to Philadelphia
- Flights from Islip to San Francisco
- Flights from Islip to Cancún
- Flights from Islip to Houston
- Flights from Islip to San Juan
- Flights from Islip to Washington, D.C.
- Flights from Islip to Dhaka
Flights to Kalispell
- Flights from Vilnius to Kalispell
- Flights from London to Kalispell
- Flights from Las Vegas to Kalispell
- Flights from Los Angeles to Kalispell
- Flights from Washington, D.C. to Kalispell
- Flights from Lviv to Kalispell
- Flights from Dallas to Kalispell
- Flights from Philadelphia to Kalispell
- Flights from Phoenix to Kalispell
- Flights from San Diego to Kalispell
- Flights from Oakland to Kalispell
- Flights from New York to Kalispell
- Flights from Orlando to Kalispell
- Flights from Denver to Kalispell
- Flights from Chicago to Kalispell
- Flights from Miami to Kalispell
- Flights from Atlanta to Kalispell
- Flights from Mexico City to Kalispell
- Flights from Bogotá to Kalispell
- Flights from San Francisco to Kalispell
Popular routes
- Flights from Trujillo to Cozumel
- Flights from Matamoros to Jessore
- Flights from Medford to Maputo
- Flights from Juba to Mykonos
- Flights from Stuttgart to Rochester
- Flights from Montreal to Oradea
- Flights from Westchester County to Pune
- Flights from London to Lisbon
- Flights from Fortaleza to Boise
- Flights from Luanda to Freeport
- Flights from Stuttgart to Dushanbe
- Flights from London to Larnaca
- Flights from Tumbes to Corfu