Chicago (ORD) to San Antonio (SAT)
Flight time
≈ 2h 53m
Bearing
218° SW
Chicago (ORD) to San Antonio (SAT) is 1,042 miles (1,677 km) as the crow flies — the great-circle baseline most distance-based mileage programs credit.
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What actually flies ORD–SAT
Filed traffic dataIn May 2026, United Airlines operated the most departures, one of 6 carriers flying nonstop ORD–SAT; the Embraer E175 was the most common aircraft at 45% of departures; flights ran 82% full.
Departures
357
May 2026
Seats
42,327
both directions
Passengers
34,905
both directions
Load factor
82.5%
RPM ÷ ASM
Who flies ORD–SAT?
United Airlines operated the most nonstop ORD–SAT departures in May 2026 (155), one of 6 carriers on the route.
- UA
155 departures · 24,789 seats
Share of departures43.4%79.8%
Load
- MQ
139 departures · 10,564 seats
Share of departures38.9%88.1%
Load
- AA
40 departures · 5,128 seats
Share of departures11.2%86.1%
Load
- OO
20 departures · 1,508 seats
Share of departures5.6%72.5%
Load
- YX
2 departures · 152 seats
Share of departures0.6%90.8%
Load
- VB
Viva
1 departures · 186 seats
Share of departures0.3%98.9%
Load
What plane flies ORD–SAT?
In May 2026, the Embraer E175 flew 45% of ORD–SAT departures — more than any other aircraft type.
- Embraer E175
161 departures · 86.2% load
45.1% - Boeing 737 MAX 9
44 departures · 72.0% load
12.3% - Airbus A319
43 departures · 85.9% load
12.0% - Airbus A320
37 departures · 84.0% load
10.4% - Boeing 737-800
35 departures · 84.5% load
9.8% - Boeing 737-700
24 departures · 84.2% load
6.7% - Boeing 737-900ER
11 departures · 76.1% load
3.1% - Boeing 737 MAX 8
2 departures · 94.3% load
0.6%
How has ORD–SAT traffic changed?
Nonstop ORD–SAT departures rose from 331 in June 2025 to 357 in May 2026.
Monthly nonstop ORD–SAT traffic, trailing 12 months through May 2026. Bars scale to the busiest month; months with no filed service show as zero.
June 2025
331 departures · 39,608 passengers
80.0%
Load
July 2025
323 departures · 36,842 passengers
80.4%
Load
August 2025
297 departures · 29,919 passengers
77.7%
Load
September 2025
300 departures · 28,793 passengers
79.1%
Load
October 2025
358 departures · 37,899 passengers
78.7%
Load
November 2025
306 departures · 30,367 passengers
74.4%
Load
December 2025
316 departures · 29,292 passengers
74.5%
Load
January 2026
277 departures · 24,645 passengers
73.6%
Load
February 2026
288 departures · 24,911 passengers
81.6%
Load
March 2026
347 departures · 30,734 passengers
86.3%
Load
April 2026
339 departures · 32,497 passengers
84.2%
Load
May 2026
357 departures · 34,905 passengers
82.5%
Load
By direction
Each direction is filed separately — they rarely match.
ORD → SAT
81.1% full
179 departures · 17,155 passengers
SAT → ORD
83.8% full
178 departures · 17,750 passengers
Nonstop ORD–SAT traffic has been filed since 2025.
Source: US DOT BTS Form 41 T-100 Segment (All Carriers). Data through May 2026; filings from 2025. Public domain (US Government work).
The airports
Frequently asked
How far is Chicago (ORD) from San Antonio (SAT)?
ORD to SAT is 1,042 miles (1,677 km / 906 nautical miles) measured great-circle — the shortest path over the surface of the Earth.
How long is the flight from ORD to SAT?
A nonstop covers the 1,042-mile great-circle distance in roughly 2h 53m of block time, before winds. Actual schedules vary a few percent by direction and aircraft.
What plane flies ORD–SAT?
In May 2026, the Embraer E175 flew the largest share of departures (45.1%), followed by the Boeing 737 MAX 9 (12.3%).
What mileage do I earn flying ORD–SAT?
Distance-based programs credit off the 1,042-mile great-circle figure, then apply your fare-class earning rate. Revenue-based programs credit off the fare instead.
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