San Antonio to Chicago Flight Distance
San Antonio International Airport (SAT) to Chicago O'Hare International Airport (ORD)
Primary sources · 6
- [1] Vincenty (1975) — Direct and Inverse Solutions of Geodesics on the Ellipsoid — the iterative formula used for distance · Survey Review XXIII (176), pp. 88–93 · April 1975 https://www.ngs.noaa.gov/PUBS_LIB/inverse.pdf
- [2] NGA.STND.0036_1.0.0_WGS84 — WGS-84 reference ellipsoid (a = 6,378,137 m, 1/f = 298.257223563) · NGA Standard · July 2014 https://earth-info.nga.mil/index.php?dir=wgs84&action=wgs84
- [3] DESNZ 2024 conversion factors — Per-km kg CO₂e factors for the three distance bands and four cabin classes · UK Department for Energy Security and Net Zero · June 2024 https://www.gov.uk/government/publications/greenhouse-gas-reporting-conversion-factors-2024
- [4] Lee et al. (2021) — Effective radiative forcing of aviation — the science behind the 1.9 × CO₂ → CO₂e uplift · Atmospheric Environment 244, 117834 · January 2021 https://doi.org/10.1016/j.atmosenv.2020.117834
- [5] OpenFlights — Airport coordinates and IATA codes · openflights.org/data.php · Community-maintained https://openflights.org/data.php
- [6] Sack (2010) — Jet-lag review — clinical chronobiology and asymmetric recovery rates · New England Journal of Medicine 362:440 · February 2010 https://www.nejm.org/doi/full/10.1056/NEJMcp0909838
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Your Route Summary
What This Means For Your Trip
Flight Duration: At 1,042 miles, this medium-haul flight will take approximately 2h 38m. Consider bringing a book or downloading entertainment for the journey.
Time Adjustment: Chicago is 0 hours ahead of San Antonio. You should experience minimal jet lag.
Environmental Impact: An economy class seat produces approximately 261 kg of CO2. Consider carbon offset programs if environmental impact is a concern.
Flight Options: 3 airlines serve this route, giving you options for schedule and price comparison.
Complete Flight Analysis
| Metric | Value | Category / Reference |
|---|---|---|
| Distance (Miles) | 1,042 mi | Primary frequent flyer unit |
| Distance (Kilometers) | 1,676 km | International standard |
| Distance (Nautical Miles) | 905 nm | Aviation standard |
| Flight Time | 2h 38m | Based on 850 km/h cruise + ground time |
| Route Classification | MEDIUM HAUL | Medium-haul flight (1,500 - 4,000 km) |
| Flight Direction | 32° NNE | North-Northeast |
| Cruising Altitude | 37,000 ft | FL370 (11,278 m) |
| Time Difference | +0h | Jet lag: none |
| CO2 (Economy) | 261 kg | DEFRA 2024 factors |
| CO2 (Business) | 758 kg | 2.9x economy |
| CO2 (First Class) | 1046 kg | 4x economy |
| Trees to Offset | 24 | Economy class, per passenger |
| Fuel per Passenger | 50 L | ~9,000 L total (180 pax) |
| Operating Airlines | 3 | Direct flights available |
Tips for This Route
San Antonio International Airport
San Antonio, United States
Chicago O'Hare International Airport
Chicago, United States
Airlines Flying This Route
3 airlines operate flights between San Antonio and Chicago.
Flight Details
Flight Midpoint
The geographic midpoint of this flight is located at:
Carbon Emissions by Cabin Class
CO2 emissions vary by cabin class due to seat space allocation. Based on DEFRA 2024 emission factors.
Jet Lag & Travel Tips
- Minimal time difference - jet lag unlikely
Seat Recommendations
Distance in Perspective
Distance & Speed Reference
| Measurement | Value |
|---|---|
| Statute Miles | 1,042 mi |
| Kilometers | 1,676 km |
| Nautical Miles | 905 nm |
| Meters | 1,676,000 m |
| Feet | 5,501,760 ft |
| Flight Time (850 km/h) | 2h 38m |
| Driving Time (80 km/h avg) | 21 hours |
Travel Speed Comparison
How long would it take to cover the 1,676 km between San Antonio and Chicago at different speeds?
| Mode | Speed | Time |
|---|---|---|
| Commercial Jet | 850 km/h | 2h 38m |
| Turboprop Aircraft | 500 km/h | 3h 21m |
| Bullet Train | 320 km/h | 5h 14m |
| Car (highway) | 100 km/h | 16h 46m |
| Walking | 5 km/h | 335h (14 days) |
| Speed of Sound | 1,235 km/h | 1h 21m |
Round Trip Summary
Quick Facts
Routes from SAT
View all routesFrequently Asked Questions
How far is San Antonio from Chicago?
The flight distance from San Antonio International Airport (SAT) to Chicago O'Hare International Airport (ORD) is 1,042 miles (1,676 km). This is the great circle distance calculated using the Vincenty formula.
How long is the flight?
A direct flight takes approximately 2h 38m. This is a medium-haul flight typically cruising at 37,000 feet (FL370).
What is the time difference?
Chicago is 0 hours ahead of San Antonio.
What airlines fly this route?
3 airlines operate this route: American Airlines, US Airways, United Airlines.
What is the carbon footprint?
Economy class: 261 kg CO2 per passenger. Business class: 758 kg. First class: 1046 kg. Offset with ~24 trees.
Which seat side is best?
For this North-Northeast flight, the right side offers the best views away from sun glare.
Can I drive from San Antonio to Chicago instead of flying?
While driving is technically possible at 1,676 km, it would take approximately 21 hours of non-stop driving. Flying saves you significant time, reducing travel to just 2h 38m.
What aircraft typically fly this route?
This medium-haul route is typically served by Airbus A321, Boeing 737 MAX, Airbus A320neo aircraft. A mix of narrow-body and wide-body aircraft may operate this route depending on demand.
How can I offset the carbon from this flight?
An economy class seat on this route produces 261 kg CO2. You can offset this by planting approximately 24 trees, purchasing verified carbon credits through programs like Gold Standard or Verra, or supporting renewable energy projects. Many airlines also offer built-in carbon offset options during booking.
External Resources & References
Learn more about the airports, aviation data, and carbon emissions methodology used in this calculation.