A sample of one-way prices for one traveler from Roame’s fare cache. Points, fees, and seats describe the same observation. Availability can change; confirm with the loyalty program before transferring points.
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Did you mean Flights from St Louis to Calgary?
Calgary
CanadaYYC
Calgary International Airport
St Louis
United StatesSTL
Lambert St Louis International Airport
Calgary International Airport (YYC) serves Calgary; Lambert St Louis International Airport (STL) serves St Louis.
The airports are 1,428 miles apart by great-circle distance.
Roame's current schedule feed lists service with stops from YYC to STL, but no nonstop service.
Marketing airlines listed in the current schedule, including codeshare sellers, are United Airlines (UA). This list does not identify the operating airline for each flight; check the flight details before booking.
Published schedule dates span Nov 28 – 29, 2026.
These are marketing airlines, including codeshare sellers. This list does not identify the operating airline for each flight; check the flight details before booking.
Airline alliance affiliations represented: Star Alliance
Calgary International Airport (YYC) is the origin airport and Lambert St Louis International Airport (STL) is the destination airport.
YYC and STL are approximately 1,428 miles apart by great-circle distance.
No. Roame's current schedule feed lists service with stops from YYC to STL, but no nonstop service.
Marketing airlines listed in the current schedule, including codeshare sellers, are United Airlines (UA). This list does not identify the operating airline for each flight; check the flight details before booking.
Aircraft listed in the current schedule include Boeing 737-800 (738).