The U.S. aircraft register, updated daily
Routes and flights · the DOT's airline reports, August 2025 to July 2026

St. Louis Lambert International ⇄ Sacramento International STL–SMF

Airlines flew 667 flights between St. Louis Lambert International STL in St Louis, MO and Sacramento International SMF in Sacramento, CA in the twelve months to July 2026, both directions together: 99,036 passengers in 113,458 seats, 87% of them filled, and 86,200 pounds of freight. 1,679 miles, about 227 minutes in the air, on 2 airlines: Southwest Airlines Co. (666), Delta Air Lines Inc. (1). Planning to fly it yourself? The weather and winds along this route right now.

667
flights, twelve months
STL-SMF: 334 · SMF-STL: 333
99,036
passengers
87% of seats filled
1,679
miles
about 227 minutes airborne
2
airlines
4 aircraft types

Flights by month both directions

0163249651/254/257/2510/251/264/26647/26
By month, as a table
flights
1/2520
2/2534
3/2559
4/2560
5/2562
6/2560
7/2565
8/2563
9/2561
10/2562
11/2558
12/2562
1/2620
2/2636
3/2658
4/2660
5/2662
6/2661
7/2664

Passengers by month

02,4764,9527,4289,9041/254/257/2510/251/264/269,9047/26
By month, as a table
passengers
1/252,657
2/254,360
3/257,446
4/257,371
5/257,964
6/258,563
7/259,288
8/259,002
9/258,962
10/259,156
11/258,568
12/258,929
1/262,880
2/264,997
3/268,416
4/268,886
5/269,646
6/269,690
7/269,904

The airlines twelve months, both directions

AirlineFlightsPassengersSeats filledService
Southwest Airlines Co. WN66698,96787%scheduled passenger service
Delta Air Lines Inc. DL16996%charter passenger service

The aircraft as the airlines report their types

AircraftFlightsSeats a flightPassengers
Boeing B737 Max 80037017556,799
Boeing 737-80020817531,073
Boeing 737-700/700LR/Max 78813911,095
Boeing 757-20017269

STL → SMF this direction alone · flown January 2025 to July 2026

334 flights of 331 scheduled, 49,011 passengers in 56,264 seats, 52,668 pounds of freight. Southwest Airlines Co. 334.

SMF → STL this direction alone · flown January 2025 to July 2026

333 flights of 331 scheduled, 50,025 passengers in 57,194 seats, 33,532 pounds of freight. Southwest Airlines Co. 332; Delta Air Lines Inc. 1.

Source: the Bureau of Transportation Statistics' T-100 Segment table (all carriers). A flight is one departure performed on this segment; seats and passengers are the airlines' own monthly reports; "seats filled" is passengers divided by seats. The miles are the DOT's great-circle distance. Both ends: St. Louis Lambert International STL and Sacramento International SMF; all routes.