Cheap flights from Kalispell to St. Louis from $114
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Kalispell to St. Louis departing on 7/3. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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How to get the cheapest flight ticket from Kalispell to St. Louis
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 is the cheapest month to fly to St. Louis?
In general, December is the cheapest month to fly from Kalispell to St. Louis. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $362. The month of March is another great option to travel to St. Louis, with average flight prices from Kalispell averaging around $373.
What is the cheapest day to depart on your flight to St. Louis?
The cheapest day to depart on your flight to St. Louis is on a Friday when prices can be found for as low as $386. This is often the case because there is less demand to fly during this day of the week. If your travel schedule is flexible, try to avoid departing on a Monday because tickets tend to average around $736. These prices are subject to change though, so be sure to set up a Price Alert for flights to St. Louis.
What is the cheapest airline that flies from Kalispell Glacier Park to Lambert-St Louis?
American Airlines, United Airlines, and Delta are the most popular carriers operating from Kalispell Glacier Park to Lambert-St Louis
What airlines fly to St. Louis?
United Airlines, Delta and Alaska Airlines are the top three most popular airlines that fly to St. Louis from Kalispell according to our data. United Airlines is the first choice among our users, with 61% of people opting to fly with this airline when traveling to St. Louis. Keep in mind that there are 3 different airlines that fly to St. Louis on a routine basis, so you have a few additional options to choose from.
When to book flights from Kalispell to St. Louis
Cheap Kalispell to St. Louis (FCA to STL) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Kalispell to St. Louis
How far is Kalispell Glacier Park to Lambert-St Louis by plane?
Lambert-St Louis is 1369.9 mi away from Kalispell Glacier Park. In terms of flight time, this usually takes a little over 5h 27m.
When did momondo last update prices for flights from Kalispell Glacier Park Airport to Lambert-St Louis Airport?
Prices for flights from Kalispell Glacier Park Airport to Lambert-St Louis Airport refresh daily.
How many operators does momondo search for flights from Kalispell Glacier Park Airport to Lambert-St Louis Airport?
The number of operators available for flights from Kalispell Glacier Park Airport to Lambert-St Louis Airport is 2 as of June 2025.
How old do you have to be to fly from Kalispell Glacier Park Airport to Lambert-St Louis Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Kalispell Glacier Park Airport to Lambert-St Louis Airport.
What documentation or ID do you need to fly to Lambert-St Louis Airport?
The travel and health documents you'll need for your trip to Lambert-St Louis Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Lambert-St Louis Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular airline from Kalispell to St. Louis?
momondo data reveals that the most frequently booked airline on the route from Kalispell to St. Louis is United Airlines, representing 66% of all bookings. The subsequent popular airline is Delta at 34%.
Best airlines flying from Kalispell to St. Louis
Compare and see reviews for airlines that fly from Kalispell to St. Louis with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $298 | Free Cancellation | Rating 8.0 7,946 reviews | |||
| PriceFrom $337 | Free Cancellation | Rating 7.4 8,790 reviews |
Traveling to a place near St. Louis?
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Why should I use momondo to find a flight deal from Kalispell to St. Louis?
It is quick and easy to find Kalispell to St. Louis 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 St. Louis that suits you.
Can I find flights from Kalispell to St. Louis with flexible booking policies on momondo?
Yes. All flights to St. Louis from Kalispell on momondo can be compared and filtered by various policies on offer, including flexible booking.
How can momondo help me find flights from Kalispell to St. Louis?
Once you have performed a search for Kalispell to St. Louis flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.
I’m not ready to book a flight from Kalispell to St. Louis right now. Can momondo alert me if prices change?
Yes momondo offers price alerts on flights to St. Louis from Kalispell. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.