Ontario to Denver Flight Distance
Ontario International Airport (ONT) to Denver International Airport (DEN)
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 819 miles, this short-haul flight will take approximately 2h 3m. This is a relatively quick flight where you may not even need entertainment.
Time Adjustment: Denver is 1 hour ahead of Ontario. You should experience minimal jet lag.
Environmental Impact: An economy class seat produces approximately 336 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) | 819 mi | Primary frequent flyer unit |
| Distance (Kilometers) | 1,317 km | International standard |
| Distance (Nautical Miles) | 711 nm | Aviation standard |
| Flight Time | 2h 3m | Based on 850 km/h cruise + ground time |
| Route Classification | SHORT HAUL | Short-haul flight (under 1,500 km) |
| Flight Direction | 57° ENE | East-Northeast |
| Cruising Altitude | 33,000 ft | FL330 (10,058 m) |
| Time Difference | +1h | Jet lag: none |
| CO2 (Economy) | 336 kg | DEFRA 2024 factors |
| CO2 (Business) | 974 kg | 2.9x economy |
| CO2 (First Class) | 1343 kg | 4x economy |
| Trees to Offset | 31 | Economy class, per passenger |
| Fuel per Passenger | 40 L | ~7,200 L total (180 pax) |
| Operating Airlines | 3 | Direct flights available |
Tips for This Route
Ontario International Airport
Ontario, United States
Denver International Airport
Denver, United States
Airlines Flying This Route
3 airlines operate flights between Ontario and Denver.
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 | 819 mi |
| Kilometers | 1,317 km |
| Nautical Miles | 711 nm |
| Meters | 1,317,000 m |
| Feet | 4,324,320 ft |
| Flight Time (850 km/h) | 2h 3m |
| Driving Time (80 km/h avg) | 16 hours |
Travel Speed Comparison
How long would it take to cover the 1,317 km between Ontario and Denver at different speeds?
| Mode | Speed | Time |
|---|---|---|
| Commercial Jet | 850 km/h | 2h 3m |
| Turboprop Aircraft | 500 km/h | 2h 38m |
| Bullet Train | 320 km/h | 4h 7m |
| Car (highway) | 100 km/h | 13h 10m |
| Walking | 5 km/h | 263h (11 days) |
| Speed of Sound | 1,235 km/h | 1h 4m |
Round Trip Summary
Quick Facts
Frequently Asked Questions
How far is Ontario from Denver?
The flight distance from Ontario International Airport (ONT) to Denver International Airport (DEN) is 819 miles (1,317 km). This is the great circle distance calculated using the Vincenty formula.
How long is the flight?
A direct flight takes approximately 2h 3m. This is a short-haul flight typically cruising at 33,000 feet (FL330).
What is the time difference?
Denver is 1 hour ahead of Ontario.
What airlines fly this route?
3 airlines operate this route: AirTran Airways, Southwest Airlines, United Airlines.
What is the carbon footprint?
Economy class: 336 kg CO2 per passenger. Business class: 974 kg. First class: 1343 kg. Offset with ~31 trees.
Which seat side is best?
For this East-Northeast flight, the left side offers the best views away from sun glare.
Can I drive from Ontario to Denver instead of flying?
While driving is technically possible at 1,317 km, it would take approximately 16 hours of non-stop driving. Flying saves you significant time, reducing travel to just 2h 3m.
What aircraft typically fly this route?
This short-haul route is typically served by Airbus A320, Boeing 737, Embraer E190 aircraft. These are narrow-body aircraft designed for efficient short-distance travel.
How can I offset the carbon from this flight?
An economy class seat on this route produces 336 kg CO2. You can offset this by planting approximately 31 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.