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

Chicago O'Hare International ⇄ Abraham Lincoln Capital ORD–SPI

Airlines flew 1,372 flights between Chicago O'Hare International ORD in Chicago, IL and Abraham Lincoln Capital SPI in Springfield, IL in the twelve months to July 2026, both directions together: 44,201 passengers in 90,791 seats, 49% of them filled, and 430 pounds of freight. 174 miles, about 34 minutes in the air, on 4 airlines: Envoy Air (1,249), SkyWest Airlines Inc. (120), United Air Lines Inc. (2), Sun Country Airlines d/b/a MN Airlines (1). Planning to fly it yourself? The weather and winds along this route right now.

1,372
flights, twelve months
ORD-SPI: 685 · SPI-ORD: 687
44,201
passengers
49% of seats filled
174
miles
about 34 minutes airborne
4
airlines
6 aircraft types

Flights by month both directions

03162931241/254/257/2510/251/264/261207/26
By month, as a table
flights
1/2598
2/25100
3/25120
4/25108
5/25121
6/25100
7/2587
8/25116
9/25113
10/25123
11/25111
12/25111
1/26116
2/26104
3/26103
4/26112
5/26124
6/26119
7/26120

Passengers by month

01,0522,1053,1584,2101/254/257/2510/251/264/264,1947/26
By month, as a table
passengers
1/252,559
2/252,420
3/253,130
4/253,124
5/253,900
6/253,359
7/253,013
8/253,739
9/253,342
10/254,056
11/253,205
12/253,748
1/263,212
2/263,265
3/263,375
4/263,706
5/264,210
6/264,149
7/264,194

The airlines twelve months, both directions

AirlineFlightsPassengersSeats filledService
Envoy Air MQ1,24940,83450%scheduled passenger service
SkyWest Airlines Inc. OO1203,14840%scheduled passenger service
United Air Lines Inc. UA221963%scheduled passenger service
Sun Country Airlines d/b/a MN Airlines SY100%charter passenger service

The aircraft as the airlines report their types

AircraftFlightsSeats a flightPassengers
Embraer-Emb-1701,1326537,080
Canadair RJ-700120653,148
Embraer ERJ-175117763,754
Boeing 737-80011860
Boeing B737 Max 8001166141
Boeing 737-900ER117978

ORD → SPI this direction alone · flown January 2025 to July 2026

685 flights of 705 scheduled, 21,898 passengers in 45,261 seats, 180 pounds of freight. Envoy Air 623; SkyWest Airlines Inc. 61; Sun Country Airlines d/b/a MN Airlines 1.

SPI → ORD this direction alone · flown January 2025 to July 2026

687 flights of 706 scheduled, 22,303 passengers in 45,530 seats, 250 pounds of freight. Envoy Air 626; SkyWest Airlines Inc. 59; United Air Lines Inc. 2.

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: Chicago O'Hare International ORD and Abraham Lincoln Capital SPI; all routes.