Green Airlines

Rankings / Routes / Atlanta to Las Vegas

2025 flights

Atlanta to Las Vegas

Between Atlanta and Las Vegas, 1.6 million passengers flew nonstop in 2025, on 10 thousand flights of about 1,747 miles and 3.6 hours in the air. The average passenger accounted for about 229 kg of CO2 from the fuel burned, from 167 kg on Frontier Airlines to 245 kg on Delta Air Lines.

  • 229 kgCO2 per passenger, average
  • 1,747 milesabout 3.6 hours in the air
  • 1.6 millionpassengers in 2025
  • 86%of seats filled

CO2 per passenger, airline by airline

CO2 per passenger by airline, Atlanta to Las VegasBar chart of kilograms of CO2 per passenger on each airline between Atlanta and Las Vegas in 2025.0100200Frontier Airlines167 kgSpirit Airlines189 kgSouthwest Airlines210 kgDelta Air Lines245 kg
CO2 per passenger by airline, Atlanta to Las VegasBar chart of kilograms of CO2 per passenger on each airline between Atlanta and Las Vegas in 2025.0100200Frontier Airlines167 kgSpirit Airlines189 kgSouthwest Airlines210 kgDelta Air Lines245 kg
Kilograms of CO2 per passenger, one way, 2025. Fuel burned only. Less is better.
Atlanta to Las Vegas by airline, 2025
AirlineShare of passengersFlights (thousands)Main aircraftSeats per flightSeats filledkg CO2 per passenger
Delta Air Lines70%6.7Airbus A321, Boeing 757-20019886%245
Southwest Airlines13%1.4Boeing 737 MAX 8, Boeing 737-80016985%210
Frontier Airlines10%0.9Airbus A320neo, Airbus A321neo20688%167
Spirit Airlines7%0.7Airbus A320neo, Airbus A321neo19582%189

What explains the differences

It's number 98 of the 100 busiest city pairs by passengers, and number 14 for the lowest CO2 per mile flown (0.13 kg per passenger-mile, number 1 being the lowest). A typical route of 1,747 miles in this set comes out at about 243 kg, so this one is 5.9% below it.

The airlines on this route differ by 47% per passenger. Frontier Airlines burned 3,092 gallons per flight and 181 passengers on each, and Delta Air Lines 4,273 gallons and 170 passengers. Fuel burned per flight explains about 84% of the gap and the number of passengers on each flight the other 16%. Frontier Airlines flew 88% full here against 86% for Delta Air Lines, flying mostly Airbus A320neo against Airbus A321.

For comparison, the EPA default factor for a flight of this length (0.129 kg per passenger-mile) would give 225 kg. The EPA figure is a national average for flights of that length. The measured figure for this route is 1.6% higher.

2019 compared with 2025

In 2019 the route carried 1.6 million passengers on 9 thousand flights. In 2025 it carried 1.6 million, up 2%, on 10 thousand flights, up 4%. The average flight had 185 seats then and 194 now, and 91% of them were filled against 86%.

CO2 per passenger was 216 kg in 2019 and 229 kg in 2025, up 6.2%. Fuel burned per flight was up 5.1% (3,714 gallons to 3,902) and passengers per flight were down 1.0% (168 to 166). The distance flown was about the same (1,747 miles then, 1,747 now).

Delta Air Lines led in both years, with 65% of passengers in 2019 and 70% in 2025. Southwest Airlines lost the most, 17% to 13%.

Airline by airline, Spirit Airlines went from 223 kg to 189 kg per passenger (159 seats per flight to 195, main aircraft Airbus A319 then and Airbus A320neo now); Delta Air Lines went from 220 kg to 245 kg per passenger (196 seats per flight to 198, main aircraft Airbus A321 in both years).

Atlanta to Las Vegas, 2019 and 2025
Measure20192025
Passengers (thousands)1,5791,618
Flights (thousands)9.49.7
Seats filled91%86%
Gallons of fuel per flight3,7143,902
kg CO2 per passenger216229
CO2 per passenger by airline, 2019 and 2025, Atlanta to Las VegasBar chart of kilograms of CO2 per passenger on Atlanta to Las Vegas for each major airline in 2019 and in 2025.0100200Delta Air Lines 2019220 kgDelta Air Lines 2025245 kgSouthwest Airlines 2019215 kgSouthwest Airlines 2025210 kgFrontier Airlines 2019176 kgFrontier Airlines 2025167 kgSpirit Airlines 2019223 kgSpirit Airlines 2025189 kg
CO2 per passenger by airline, 2019 and 2025, Atlanta to Las VegasBar chart of kilograms of CO2 per passenger on Atlanta to Las Vegas for each major airline in 2019 and in 2025.0100200Delta Air Lines 2019220 kgDelta Air Lines 2025245 kgSouthwest Airlines 2019215 kgSouthwest Airlines 2025210 kgFrontier Airlines 2019176 kgFrontier Airlines 2025167 kgSpirit Airlines 2019223 kgSpirit Airlines 2025189 kg
Kilograms of CO2 per passenger on the airlines that flew the route in both years. 2019 figures use that year's filings and estimated aircraft fuel rates, with type-average replacements for missing or outlying filings as described in the methodology. Less is better.

Atlanta to Las Vegas and back: time in the air

Flights from Atlanta to Las Vegas spent 235 minutes in the air on average in 2025, against 201 minutes from Las Vegas to Atlanta: 34 minutes longer, 17% more. That's the westbound direction, into the prevailing west-to-east winds, which at flight levels often blow at well over 50 miles an hour.

At this route's average burn of about 1,073 gallons per flight hour, those extra minutes cost about 608 gallons per flight, which is about 3.7 gallons or 36 kg of CO2 for each passenger on the slower direction. The route figure above averages both directions.

Time in the air by direction, 2025
DirectionAverage minutes in the airFlights
Atlanta to Las Vegas235.14,877
Las Vegas to Atlanta201.14,860

Fly or drive

Driving is about 2,044 miles by road, which we estimate as 1.17 times the straight-line distance. An average car emits about 607 kg of CO2 on the trip, at the EPA figure of 0.297 kg per vehicle-mile. Alone, that's 165% more than the 229 kg for a passenger on the flight.

With 3 people in the car, driving comes out lower per person than the flight (202 kg each, and 152 kg each for four). A larger SUV or pickup (0.394 kg per mile) would emit about 805 kg per vehicle.

CO2 per person by way of travel, Atlanta to Las VegasBar chart of kilograms of CO2 per person flying, driving or taking the train between Atlanta and Las Vegas.0200400600Flight, average229 kgCar, driver alone607 kgCar, 2 people304 kgCar, 4 people152 kg
CO2 per person by way of travel, Atlanta to Las VegasBar chart of kilograms of CO2 per person flying, driving or taking the train between Atlanta and Las Vegas.0200400600Flight, average229 kgCar, driver alone607 kgCar, 2 people304 kgCar, 4 people152 kg
CO2 per person, Atlanta to Las Vegas. Driving figures divide one car's emissions between the people in it. See flying vs driving for other trip lengths.

Flights are listed under the airline that operates them, so regional flying appears under the regional. How the CO2 and drive figures are worked out is in the methodology.

Routes with shared cities or nearby CO2 per mile

New York to Atlanta124 kg CO2 per passenger over 758 milesLos Angeles to Las Vegas53 kg CO2 per passenger over 227 milesAtlanta to Miami96 kg CO2 per passenger over 587 milesAtlanta to Washington, DC104 kg CO2 per passenger over 554 milesLos Angeles to Chicago225 kg CO2 per passenger over 1,739 milesDenver to Washington, DC192 kg CO2 per passenger over 1,471 milesChicago to Phoenix190 kg CO2 per passenger over 1,441 milesDenver to Seattle135 kg CO2 per passenger over 1,024 miles

Airports on this route: Hartsfield-Jackson Atlanta International Airport, Harry Reid International Airport.

Airport and airline references

Source: US Bureau of Transportation Statistics (BTS), T-100 traffic and Schedule T-2 fuel filings; US EPA transport emission factors. See the methodology.

See all routes, or how the airlines compare overall on the airline pages.