$269 Find Cheap Flights from Boston to Kalispell - Compare and Save

Two cabin classes are available on flights from Boston to Kalispell:

• Economy Class
• First Class

A nonstop flight from Boston to Kalispell takes 00m, covering 2,110 miles.

No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID or another TSA-accepted form of identification.

Round-trip flights from Boston to Kalispell range from $443 to $747, with an average of $582 over the past 12 months. Anything below $443 counts as a good deal.

Last-minute fares on this route (booked within two weeks of departure) run 38% above the $582 route average. Book 24 weeks before departure for the lowest fares.

Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $399 to $2,517. That means the highest observed fare was about 6x higher than the lowest one.

One-way fares from Boston to Kalispell are currently higher than usual. Average one-way flight prices are about $390, which is 32% above the typical average for this route.

Kalispell Glacier Park Airport (FCA) hosts 5 major car rental companies, with daily rates starting from around $21 for economy cars. Top options include:

• Avis
• Budget
• Enterprise Rent-A-Car
• Payless
• Thrifty

Flights from Boston to Kalispell usually depart from Boston Logan Intl (BOS) and arrive at Kalispell Glacier Park (FCA).

One-stop flights from Boston to Kalispell most commonly connect through:

• Chicago O'Hare Intl (ORD) - 36% of one-stop connections
• Minneapolis St Paul (MSP) - 35% of one-stop connections
• Denver Intl (DEN) - 14% of one-stop connections
• Seattle/Tacoma Intl (SEA) - 8% of one-stop connections

Yes. Flexible dates can save you up to 28% on flights from Boston to Kalispell. Tuesday is the cheapest departure day at $527 round-trip on average, while Monday is the most expensive at $729, a difference of $202.

KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

Flying via Denver Intl (DEN) gives the shortest average 1-stop total travel time at 7h 56m, compared with 7h 57m via Chicago O'Hare Intl (ORD) and 7h 57m via Minneapolis St Paul (MSP).

Kalispell is 2 hours behind Boston (Mountain Time vs Eastern Time). Plan for the time shift when scheduling connections or first-day activities.

All domestic flights within the US have a 24-hour window from the time of original booking. During this time, you can change or cancel the flight with no penalty. After this 24-hour period, additional fees may apply for itinerary changes. Delta gives a refundable ticket option for each of their cabins, which includes free changes and is refundable. United Airlines also offers their Economy Flex fare for free changes.

Baggage fees are determined by the airline and will also depend on the ticket type you choose. On Delta flights, all passengers can bring a personal item (that can fit under the seas) and a carry-on free of charge. Fees will be charged for any checked baggage unless you decide to upgrade to the First-Class cabin, which includes two checked bags. The Basic Economy fare on United does not include a carry-on bag and must be paid for along with any checked bags. Pay online for checked bags to get a discount and make the check-in process easier.

Kids aged 5 to 14 can travel alone on United and Delta Air Lines through their Unaccompanied Minor programs. With this service, they will receive an escort through the airport upon arrival, as well as special snacks and entertainment during the flight. Parents are given a special pass that permits them to take their child up to the boarding gate. They will even be given a barcoded wristband which allows parents to track their journey.

Kalispell Airport is the nearest one to the West Entrance of Glacier National Park. From the airport, you can take a shuttle to the Whitefish Amtrak Station. Glacier Park operates these shuttles, and they leave every 15 minutes. Once at the station, take the train to West Glacier, where the park entrance is located. Car rental companies like Avis and Hertz are available at the airport to give you the most flexibility during your trip. Check KAYAK for some of the best rental rates.