Dallas-Fort Worth to Las Vegas

Between Dallas-Fort Worth and Las Vegas, 2.5 million passengers flew nonstop in 2025, on 17 thousand flights of about 1,059 miles and 2.3 hours in the air. The average passenger accounted for about 148 kg of CO2 from the fuel burned, from 116 kg on Frontier Airlines to 155 kg on American Airlines.

148 kgCO2 per passenger, average
1,059 milesabout 2.3 hours in the air
2.5 millionpassengers in 2025
80%of seats filled

CO2 per passenger, airline by airline

Kilograms of CO2 per passenger, one way, 2025. Fuel burned only. Less is better.

Dallas-Fort Worth to Las Vegas by airline, 2025

Airline	Share of passengers	Flights (thousands)	Main aircraft	Seats per flight	Seats filled	kg CO2 per passenger
American Airlines	50%	8.0	Airbus A321, Airbus A321neo	189	82%	155
Southwest Airlines	30%	5.8	Boeing 737 MAX 8, Boeing 737-800	169	74%	155
Frontier Airlines	10%	1.5	Airbus A321neo, Airbus A320neo	216	78%	116
Spirit Airlines	10%	1.4	Airbus A320neo, Airbus A320-200	195	85%	119

What explains the differences

It's number 45 of the 100 busiest city pairs by passengers, and number 28 for the lowest CO2 per mile flown (0.14 kg per passenger-mile, number 1 being the lowest). A typical route of 1,059 miles in this set comes out at about 159 kg, so this one is 7.0% below it.

The flights use more than one pair of airports: DFW to LAS (70%), DAL to LAS (30%). The figures here cover all of them.

The airlines on this route differ by 33% per passenger. Frontier Airlines burned 2,012 gallons per flight and 169 passengers on each, and American Airlines 2,481 gallons and 156 passengers. Fuel burned per flight explains about 73% of the gap and the number of passengers on each flight the other 27%. Frontier Airlines flew 78% full here against 82% for American Airlines, flying mostly Airbus A321neo against Airbus A321.

For comparison, the EPA default factor for a flight of this length (0.129 kg per passenger-mile) would give 137 kg. The EPA figure is a national average for flights of that length. The measured figure for this route is 8.0% higher.

2019 compared with 2025

In 2019 the route carried 2.2 million passengers on 14 thousand flights. In 2025 it carried 2.5 million, up 12%, on 17 thousand flights, up 19%. The average flight had 175 seats then and 185 now, and 89% of them were filled against 80%.

CO2 per passenger was 144 kg in 2019 and 148 kg in 2025, up 2.3%. Fuel burned per flight was down 3.5% (2,312 gallons to 2,231) and passengers per flight were down 5.7% (156 to 147). The distance flown was about the same (1,058 miles then, 1,059 now).

American Airlines led in both years, with 52% of passengers in 2019 and 50% in 2025. Frontier Airlines gained the most share, 2% to 10%. Spirit Airlines lost the most, 20% to 10%. Sun Country Airlines no longer reaches 1% of passengers, having had 4% in 2019.

Airline by airline, Spirit Airlines went from 131 kg to 119 kg per passenger (189 seats per flight to 195, main aircraft Airbus A320-200 then and Airbus A320neo now); Southwest Airlines went from 143 kg to 155 kg per passenger (159 seats per flight to 169, main aircraft Boeing 737-700 then and Boeing 737 MAX 8 now).

The airports changed too: DFW to LAS handled 78% of the passengers in 2019 and 70% in 2025.

Dallas-Fort Worth to Las Vegas, 2019 and 2025

Measure	2019	2025
Passengers (thousands)	2,190	2,464
Flights (thousands)	14.0	16.7
Seats filled	89%	80%
Gallons of fuel per flight	2,312	2,231
kg CO2 per passenger	144	148

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.

Dallas-Fort Worth to Las Vegas and back: time in the air

Flights from Dallas-Fort Worth to Las Vegas spent 148 minutes in the air on average in 2025, against 131 minutes from Las Vegas to Dallas-Fort Worth: 16 minutes longer, 12% 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 960 gallons per flight hour, those extra minutes cost about 261 gallons per flight, which is about 1.8 gallons or 17 kg of CO2 for each passenger on the slower direction. The route figure above averages both directions.

Time in the air by direction, 2025

Direction	Average minutes in the air	Flights
Dallas-Fort Worth to Las Vegas	147.6	8,366
Las Vegas to Dallas-Fort Worth	131.3	8,348

Fly or drive

Driving is about 1,239 miles by road, which we estimate as 1.17 times the straight-line distance. An average car emits about 368 kg of CO2 on the trip, at the EPA figure of 0.297 kg per vehicle-mile. Alone, that's 149% more than the 148 kg for a passenger on the flight.

With 3 people in the car, driving comes out lower per person than the flight (123 kg each, and 92 kg each for four). A larger SUV or pickup (0.394 kg per mile) would emit about 488 kg per vehicle.

CO2 per person, Dallas-Fort Worth 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

Los Angeles to Las Vegas53 kg CO2 per passenger over 227 miles Los Angeles to Dallas-Fort Worth171 kg CO2 per passenger over 1,222 miles San Francisco to Las Vegas71 kg CO2 per passenger over 404 miles New York to Dallas-Fort Worth203 kg CO2 per passenger over 1,384 miles Chicago to Orlando137 kg CO2 per passenger over 1,000 miles Orlando to Houston117 kg CO2 per passenger over 852 miles New York to Houston197 kg CO2 per passenger over 1,412 miles

Airports on this route: Dallas/Fort Worth International Airport, Harry Reid International Airport, Dallas Love Field.

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.