What's the busiest hour for departures at STL?

Departures from St Louis Lambert International Airport peak at 08:00 local time, averaging 19.4 flights per hour over the past 60 days.

What's the quietest hour to fly out of STL?

The quietest hour with regular service is 00:00 local time, averaging 1 flights per hour.

Which airline operates the most flights from STL?

Southwest Airlines (WN) is the largest operator at St Louis Lambert International Airport, with 719 observed departures in the past 60 days.

What's the most popular destination from STL?

Chicago (ORD) is the most-flown destination, with observed departures in the past 60 days.

🇺🇸

STL Airport - St Louis Lambert International Airport

St. Louis, United States. Departures peak at 08:00 local, averaging 19.4 flights per hour.

Window: last 60 days. Last refreshed: 2026-05-31. Schedule coverage: 14 days observed.

Peak departure hour

08:00

19.4 flights/hr

Quietest active hour

00:00

1 flights/hr

Traffic score

84/100

Relative volume

Departures by hour (local time)

Avg per day, last 60 days

Total: 209.8 avg departures per day.

Weekday vs weekend departure pattern

Weekday avg per hour

Weekend avg per hour

Arrivals by hour (local time)

Avg per day, last 60 days

Peak arrival hour: 20:00 local (16.4 flights/hr). Total: 208.3 avg arrivals/day.

Top airlines

1. Southwest Airlines (WN) 719
2. American Airlines (AA) 235
3. United Airlines, (UA) 174
4. Delta Air Lines, (DL) 158
5. Frontier Airlines, (F9) 43

Top destinations

1. 🇺🇸 Chicago (ORD) 121
2. 🇺🇸 Denver (DEN) 76
3. 🇺🇸 Atlanta (ATL) 74
4. 🇺🇸 New York (LGA) 70
5. 🇺🇸 Dallas-Fort Worth (DFW) 54

Frequently asked

What's the busiest hour for departures at STL?: Departures from St Louis Lambert International Airport peak at 08:00 local time, averaging 19.4 flights per hour over the past 60 days.
What's the quietest hour to fly out of STL?: The quietest hour with regular service is 00:00 local time, averaging 1 flights per hour.
Which airline operates the most flights from STL?: Southwest Airlines (WN) is the largest operator at St Louis Lambert International Airport, with 719 observed departures in the past 60 days.
What's the most popular destination from STL?: Chicago (ORD) is the most-flown destination, with observed departures in the past 60 days.

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