Which airlines fly from Denver to St Louis?

This route is served by 1 airlines: Frontier Airlines.

Are there direct flights from Denver to St Louis?

Yes, there are direct flights on this route. Check the calendar above — prices for direct flights are highlighted.

Cheap flights Denver — St Louis | Prices from 119 $

Q: How long is the flight from Denver to St Louis?

Approximate flight time — 2 h 0 min. This is an average for a direct flight. With connections, the time may be longer.

Q: What is the distance from Denver to St Louis?

The straight-line distance — 1 279 km. This is the "as-the-crow-flies" distance; the actual route may be longer.

Q: How much do flights from Denver to St Louis cost?

The minimum price over 6 months — from 119 $ on 24.11.2026. Prices depend on the season, day of the week and how far in advance you book.

Q: What is the time difference between Denver and St Louis?

The time difference — +1 h. Keep this in mind when planning your flight and connections.

Q: When is the best time to buy tickets Denver — St Louis?

Optimal — 1–3 months before departure. The cheapest days — Tuesday, Wednesday, Saturday. Check the calendar above — it shows the best dates.

St Louis

St. Louis is a city on the Mississippi River, famous for its giant Gateway Arch, symbolizing the westward expansion of the United States. Here you can visit the zoo, art museum, and botanical garden, and enjoy the Midwest atmosphere. St. Louis is also known for its brewing tradition and scenic river...

More about St Louis

Trip cost calculator for St Louis

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Route characteristics

Distance

1 279 km

Flight time

2 h 0 min

Time difference

+1 h

Minimum price

from 119 $ (24.11.2026)

Departure airports

2 pcs.

Arrival airports

2 pcs.

Airlines on the route

1 pcs.

Who flies this route 1 pcs.

Frontier Airlines

Low-cost 2 flights

Where to buy tickets 2 pcs.

Farehutz

1 ticket

Trip.com

1 ticket

Airports

From — Denver

APA Centennial Airport
DEN Denver International Airport

To — St Louis

STL Lambert-St. Louis International Airport
SUS Spirit of St. Louis Airport

Frequently asked questions about the route Denver — St Louis

How long is the flight from Denver to St Louis?

Approximate flight time — 2 h 0 min. This is an average for a direct flight. With connections, the time may be longer. You will see the exact time when searching for tickets.

What is the distance from Denver to St Louis?

The straight-line distance — 1 279 km. This is the "as-the-crow-flies" distance; the actual route may be longer.

How much do flights from Denver to St Louis cost?

The minimum price over 6 months — from 119 $ on 24.11.2026. Prices depend on the season, day of the week and how far in advance you book. Usually cheaper 1–3 months before departure.

What is the time difference?

The difference — +1 h. Keep this in mind when planning your flight and connections.

From which airports does Denver operate flights?

From Denver: APA (Centennial Airport), DEN (Denver International Airport). Choose the most convenient airport.

To which airports in St Louis do flights arrive?

To St Louis: STL (Lambert-St. Louis International Airport), SUS (Spirit of St. Louis Airport). Check which airport your flight arrives at.

Which airlines fly this route?

This route is served by 1 airline: Frontier Airlines.

When is the best time to buy tickets?

Optimal — 1–3 months before departure. The cheapest days — Tuesday, Wednesday, Saturday. Check the calendar above — it shows the best dates.

How do I book tickets?

Choose a date, passengers and click "Find tickets" — a search will open comparing prices from 800+ airlines. Booking is made directly with the airline or agency.

About the route Denver — St Louis

Flights Denver — St Louis is a popular route. The straight-line distance is 1 279 km. Flight time 2 h 0 min. Time difference +1 h.

From Denver (DEN) flights depart from 2 airports. To St Louis (STL) — 2 arrival airports.

1 airline operate on this route: Frontier Airlines. Compare prices, baggage allowance and departure times.

The minimum price for the next 6 months — from 119 $ (24.11.2026). The cheapest dates are highlighted in the calendar above.

Other destinations from Denver