Cheap flights from St. Louis to Calgary from $117
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to Calgary departing on 10/5. 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 St. Louis to Calgary
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 typical price of a round-trip flight between St. Louis and Calgary?
What is the cheapest month to fly to Calgary?
The month of January is, on average, the cheapest month to fly to Calgary from St. Louis, with most prices found around $361. If you aren’t able to travel during the month of January, then book flights to Calgary from St. Louis during April instead. Flights to Calgary in April, while not as cheap as those in January, still average around $443.
What is the cheapest day to depart on your flight to Calgary?
The cheapest day to depart on your flight to Calgary is on a Tuesday when prices can be found for as low as $456. This is often the case because there is less demand to fly during this day of the week. Flights from St. Louis to Calgary on a Sunday will generally be more expensive and average around $617. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.
What is the cheapest time of day to depart on your flight to Calgary?
The cheapest time of day to fly to Calgary is at noon when flights can be purchased for as low as $499. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are $628 on average. Flights to Calgary from St. Louis in the morning are generally more expensive because this time of day is more convenient for travelers’ schedules.
How far in advance should I book a flight to Calgary?
You are more likely to see cheaper flights to Calgary from St. Louis when booking 9 weeks ahead of your departure date. In general, you can expect to find flights to Calgary for around $557 when searching 9 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Calgary from St. Louis for as low as $421 on momondo.
What is the cheapest airline that flies from Lambert-St Louis to Calgary?
American Airlines, Air Canada, and Delta are the most popular carriers operating from Lambert-St Louis to Calgary
What airlines fly to Calgary?
WestJet, United Airlines and American Airlines are the top three most popular airlines that fly to Calgary from St. Louis according to our data. WestJet is the first choice among our users, with 39% of people opting to fly with this airline when traveling to Calgary. Keep in mind that there are 5 different airlines that fly to Calgary on a routine basis, so you have a few additional options to choose from.
When to book flights from St. Louis to Calgary
Cheap St. Louis to Calgary (STL to YYC) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from St. Louis to Calgary
How far is Lambert-St Louis to Calgary by plane?
Calgary is 1438.9 mi away from Lambert-St Louis. Flights usually cover this in 5h 47m, depending on flying conditions and air traffic around both airports.
When did momondo last update prices for flights from Lambert-St Louis Airport to Calgary Airport?
Prices for flights from Lambert-St Louis Airport to Calgary Airport are updated daily.
How many operators does momondo search for flights from Lambert-St Louis Airport to Calgary Airport?
As of June 2025, there are 5 operators available to choose from for flights from Lambert-St Louis Airport to Calgary Airport.
How old do you have to be to fly from Lambert-St Louis Airport to Calgary Airport?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Lambert-St Louis Airport to Calgary Airport.
What documentation or ID do you need to fly to Calgary Airport?
The required travel and health documents for your Calgary Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Calgary Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular airline from St. Louis to Calgary?
Based on momondo bookings for flights between St. Louis and Calgary, the leading airline is WestJet, making up 36% of the total bookings. Other popular airlines include United Airlines with 21%, American Airlines with 19%, and Air Canada with 17%.
Best airlines flying from St. Louis to Calgary
Compare and see reviews for airlines that fly from St. Louis to Calgary with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $190 | Free Cancellation | Rating 8.0 7,965 reviews | |||
| PriceFrom $213 | Free Cancellation | Rating 7.1 9,568 reviews | |||
| PriceFrom $343 | Free Cancellation | Rating 7.4 8,809 reviews | |||
| PriceFrom $383 | Free Cancellation | Rating 7.2 10,000 reviews | |||
| PriceFrom $448 | Free Cancellation | Rating 7.2 2,876 reviews |
Traveling to a place near Calgary?
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Why should I use momondo to find a flight deal from St. Louis to Calgary?
momondo collates all your flight options in one place and lets you filter them to find the perfect flight from St. Louis to Calgary. momondo saves you time and could save you money on your trip.
Can I find flights from St. Louis to Calgary with flexible booking policies on momondo?
momondo does allow users to show only those flights to Calgary from St. Louis which offer a flexible booking policy as well as other useful filters and features.
How can momondo help me find flights from St. Louis to Calgary?
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 St. Louis to Calgary.
I’m not ready to book a flight from St. Louis to Calgary right now. Can momondo alert me if prices change?
Yes momondo offers price alerts on flights to Calgary from St. Louis. 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.