Chicago O'Hare International ⇄ George Bush Intcntl/Houston ORD–IAH
Airlines flew 12,119 flights between Chicago O'Hare International ORD in Chicago, IL and George Bush Intcntl/Houston IAH in Houston, TX in the twelve months to July 2026, both directions together: 1,710,878 passengers in 2,074,741 seats, 82% of them filled, and 3,801,717 pounds of freight. 925 miles, about 130 minutes in the air, on 14 airlines: United Air Lines Inc. (8,027), American Airlines Inc. (1,564), Republic Airline (706), Envoy Air (694) and 10 more. Planning to fly it yourself? The weather and winds along this route right now.
Flights by month both directions
By month, as a table
| flights | |
|---|---|
| 1/25 | 885 |
| 2/25 | 782 |
| 3/25 | 922 |
| 4/25 | 871 |
| 5/25 | 1,007 |
| 6/25 | 1,003 |
| 7/25 | 1,013 |
| 8/25 | 1,051 |
| 9/25 | 1,071 |
| 10/25 | 1,045 |
| 11/25 | 912 |
| 12/25 | 1,019 |
| 1/26 | 931 |
| 2/26 | 871 |
| 3/26 | 987 |
| 4/26 | 1,023 |
| 5/26 | 1,086 |
| 6/26 | 1,038 |
| 7/26 | 1,085 |
Passengers by month
By month, as a table
| passengers | |
|---|---|
| 1/25 | 121,954 |
| 2/25 | 111,169 |
| 3/25 | 139,361 |
| 4/25 | 132,037 |
| 5/25 | 151,401 |
| 6/25 | 147,071 |
| 7/25 | 149,625 |
| 8/25 | 146,606 |
| 9/25 | 143,007 |
| 10/25 | 146,828 |
| 11/25 | 123,684 |
| 12/25 | 145,664 |
| 1/26 | 121,089 |
| 2/26 | 117,335 |
| 3/26 | 145,289 |
| 4/26 | 139,221 |
| 5/26 | 157,453 |
| 6/26 | 160,212 |
| 7/26 | 164,490 |
The airlines twelve months, both directions
| Airline | Flights | Passengers | Seats filled | Service |
|---|---|---|---|---|
| United Air Lines Inc. UA | 8,027 | 1,248,897 | 82% | charter cargo service, scheduled passenger service |
| American Airlines Inc. AA | 1,564 | 175,854 | 78% | scheduled passenger service |
| Republic Airline YX | 706 | 48,086 | 90% | scheduled passenger service |
| Envoy Air MQ | 694 | 44,698 | 86% | scheduled passenger service |
| Spirit Air Lines NK | 525 | 95,873 | 87% | scheduled passenger service |
| Frontier Airlines Inc. F9 | 504 | 96,424 | 87% | scheduled passenger service |
| SkyWest Airlines Inc. OO | 35 | 345 | 16% | scheduled passenger service |
| Turk Hava Yollari A.O. TK | 34 | 0 | scheduled cargo service | |
| Atlas Air Inc. 5Y | 13 | 0 | charter cargo service | |
| PSA Airlines Inc. OH | 8 | 574 | 94% | scheduled passenger service |
| CommuteAir LLC dba CommuteAir C5 | 4 | 8 | 3% | charter passenger service, scheduled passenger service |
| National Air Cargo Group Inc d/ba National Airlines N8 | 3 | 0 | charter cargo service | |
| Jet Aviation Flight Services, Inc. 27Q | 1 | 2 | 12% | charter passenger service |
| Aeromexico AM | 1 | 117 | 73% | scheduled passenger service |
The aircraft as the airlines report their types
| Aircraft | Flights | Seats a flight | Passengers |
|---|---|---|---|
| Airbus Industrie A321-200n | 4,190 | 204 | 705,644 |
| Boeing 737-900ER | 2,341 | 179 | 352,094 |
| Boeing B737 Max 900 | 1,779 | 179 | 256,957 |
| Embraer ERJ-175 | 1,341 | 76 | 88,474 |
| Airbus Industrie A319 | 999 | 128 | 103,504 |
| Boeing 737-800 | 522 | 172 | 67,353 |
| Airbus Industrie A321Neoxlr | 268 | 221 | 50,489 |
| Airbus Industrie A320-200n | 185 | 184 | 29,035 |
| Airbus Industrie A320-100/200 | 153 | 175 | 23,116 |
| Boeing 757-300 | 90 | 234 | 16,256 |
| Embraer-Emb-170 | 78 | 65 | 4,413 |
| Boeing B737 Max 800 | 39 | 171 | 5,260 |
| Boeing 757-200 | 37 | 176 | 5,287 |
| Boeing B777-F | 33 | 0 | 0 |
| Boeing 747-400 | 16 | 0 | 0 |
| Canadair RJ-200ER /RJ-440 | 13 | 50 | 0 |
| Canadair CRJ 900 | 8 | 76 | 574 |
| Boeing 737-900 | 6 | 179 | 980 |
| Boeing 767-300/300ER | 5 | 81 | 152 |
| Boeing 737-700/700LR/Max 7 | 4 | 126 | 373 |
| Canadair RJ-700 | 4 | 65 | 242 |
| Boeing 777-200ER/200LR/233LR | 3 | 363 | 665 |
| Bombardier CRJ550 | 2 | 50 | 0 |
| Embraer-145 | 1 | 50 | 8 |
| Airbus Industrie A330-200 | 1 | 0 | 0 |
| Gulfstream Aerospace G-III/G-IV | 1 | 16 | 2 |
ORD → IAH this direction alone · flown January 2025 to July 2026
6,099 flights of 6,116 scheduled, 866,026 passengers in 1,038,186 seats, 2,708,216 pounds of freight, 270,469 pounds of mail. United Air Lines Inc. 4,017; American Airlines Inc. 785; Republic Airline 357; Envoy Air 346; Spirit Air Lines 265; Frontier Airlines Inc. 253; Turk Hava Yollari A.O. 34; SkyWest Airlines Inc. 23; Atlas Air Inc. 13; PSA Airlines Inc. 4; CommuteAir LLC dba CommuteAir 2.
IAH → ORD this direction alone · flown January 2025 to July 2026
6,020 flights of 6,097 scheduled, 844,852 passengers in 1,036,555 seats, 1,093,501 pounds of freight, 352,483 pounds of mail. United Air Lines Inc. 4,010; American Airlines Inc. 779; Republic Airline 349; Envoy Air 348; Spirit Air Lines 260; Frontier Airlines Inc. 251; SkyWest Airlines Inc. 12; PSA Airlines Inc. 4; National Air Cargo Group Inc d/ba National Airlines 3; CommuteAir LLC dba CommuteAir 2; Jet Aviation Flight Services, Inc. 1; Aeromexico 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: Chicago O'Hare International ORD and George Bush Intcntl/Houston IAH; all routes.