Rankings / Routes / Atlanta to Orlando
2025 flightsAtlanta to Orlando
Between Atlanta and Orlando, 2.7 million passengers flew nonstop in 2025, on 16 thousand flights of about 404 miles and 1.1 hours in the air. The average passenger accounted for about 71 kg of CO2 from the fuel burned, from 55 kg on Frontier Airlines to 78 kg on Southwest Airlines.
- 71 kgCO2 per passenger, average
- 404 milesabout 1.1 hours in the air
- 2.7 millionpassengers in 2025
- 84%of seats filled
CO2 per passenger, airline by airline
Atlanta to Orlando by airline, 2025
| Airline | Share of passengers | Flights (thousands) | Main aircraft | Seats per flight | Seats filled | kg CO2 per passenger |
|---|---|---|---|---|---|---|
| Delta Air Lines | 71% | 10.7 | Boeing 757-200, Boeing 757-300 | 205 | 87% | 74 |
| Frontier Airlines | 12% | 2.0 | Airbus A320neo, Airbus A321neo | 208 | 80% | 55 |
| Southwest Airlines | 10% | 2.4 | Boeing 737-700, Boeing 737-800 | 159 | 71% | 78 |
| Spirit Airlines | 7% | 1.1 | Airbus A321neo, Airbus A320neo | 201 | 81% | 56 |
What explains the differences
It's number 31 of the 100 busiest city pairs by passengers, and number 74 for the lowest CO2 per mile flown (0.18 kg per passenger-mile, number 1 being the lowest). A typical route of 404 miles in this set comes out at about 78 kg, so this one is 9.3% below it.
The airlines on this route differ by 42% per passenger. Frontier Airlines burned 940 gallons per flight and 166 passengers on each, and Southwest Airlines 908 gallons and 113 passengers. The gap comes from how many passengers share each flight, not from fuel burned per flight. Frontier Airlines flew 80% full here against 71% for Southwest Airlines, flying mostly Airbus A320neo against Boeing 737-700.
For comparison, the EPA default factor for a flight of this length (0.129 kg per passenger-mile) would give 52 kg. The EPA figure is a national average for flights of that length. The measured figure for this route is 36% higher.
2019 compared with 2025
In 2019 the route carried 3.1 million passengers on 19 thousand flights. In 2025 it carried 2.7 million, down 12%, on 16 thousand flights, down 13%. The average flight had 186 seats then and 198 now, and 89% of them were filled against 84%.
CO2 per passenger was 67 kg in 2019 and 71 kg in 2025, up 5.4%. Fuel burned per flight was up 6.4% (1,141 gallons to 1,214) and passengers per flight were up 1.0% (165 to 167). The distance flown was about the same (404 miles then, 404 now).
Delta Air Lines led in both years, with 70% of passengers in 2019 and 71% in 2025. Frontier Airlines gained the most share, 5% to 12%. Southwest Airlines lost the most, 15% to 10%. JetBlue no longer reaches 1% of passengers, having had 3% in 2019.
Airline by airline, Spirit Airlines went from 58 kg to 56 kg per passenger (172 seats per flight to 201, main aircraft Airbus A320-200 then and Airbus A321neo now); Southwest Airlines went from 72 kg to 78 kg per passenger (149 seats per flight to 159, main aircraft Boeing 737-700 in both years).
Atlanta to Orlando, 2019 and 2025
| Measure | 2019 | 2025 |
|---|---|---|
| Passengers (thousands) | 3,078 | 2,697 |
| Flights (thousands) | 18.6 | 16.2 |
| Seats filled | 89% | 84% |
| Gallons of fuel per flight | 1,141 | 1,214 |
| kg CO2 per passenger | 67 | 71 |
Atlanta to Orlando and back: time in the air
The time in the air is almost the same each way: 62 minutes on average from Atlanta to Orlando and 65 minutes back. A difference of 3 minutes is within what routing and congestion alone produce.
Time in the air by direction, 2025
| Direction | Average minutes in the air | Flights |
|---|---|---|
| Orlando to Atlanta | 64.8 | 8,077 |
| Atlanta to Orlando | 62.0 | 8,080 |
Fly or drive
Driving is about 473 miles by road, which we estimate as 1.17 times the straight-line distance. An average car emits about 140 kg of CO2 on the trip, at the EPA figure of 0.297 kg per vehicle-mile. Alone, that's 98% more than the 71 kg for a passenger on the flight.
With 2 people in the car, driving comes out lower per person than the flight (70 kg each, and 35 kg each for four). A larger SUV or pickup (0.394 kg per mile) would emit about 186 kg per vehicle.
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
Airports on this route: Hartsfield-Jackson Atlanta International Airport, Orlando International Airport.
Airport and airline references
- Wikipedia: Hartsfield-Jackson Atlanta International Airport
- Wikipedia: Orlando International Airport
- Wikipedia: Delta Air Lines
- Official site: Delta Air Lines
- Wikipedia: Frontier Airlines
- Official site: Frontier Airlines
- Wikipedia: Southwest Airlines
- Official site: Southwest Airlines
- Wikipedia: Spirit Airlines
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.