Orlando to Boston

Between Orlando and Boston, 2.1 million passengers flew nonstop in 2025, on 15 thousand flights of about 1,111 miles and 2.6 hours in the air. The average passenger accounted for about 163 kg of CO2 from the fuel burned, from 137 kg on Frontier Airlines to 176 kg on JetBlue.

163 kgCO2 per passenger, average
1,111 milesabout 2.6 hours in the air
2.1 millionpassengers in 2025
83%of seats filled

CO2 per passenger, airline by airline

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

Orlando to Boston by airline, 2025

Airline	Share of passengers	Flights (thousands)	Main aircraft	Seats per flight	Seats filled	kg CO2 per passenger
JetBlue	44%	6.9	Airbus A320-200, Airbus A321	166	82%	176
Southwest Airlines	19%	3.0	Boeing 737-700, Boeing 737-800	162	84%	154
Delta Air Lines	19%	2.5	Airbus A321, Airbus A321neo	190	85%	164
Spirit Airlines	11%	1.4	Airbus A320neo, Airbus A320-200	184	85%	138
Breeze Airways	5%	0.9	Airbus A220-300	137	82%	159
Frontier Airlines	3%	0.4	Airbus A320neo, Airbus A321neo	207	77%	137

What explains the differences

It's number 60 of the 100 busiest city pairs by passengers, and number 42 for the lowest CO2 per mile flown (0.15 kg per passenger-mile, number 1 being the lowest). A typical route of 1,111 miles in this set comes out at about 165 kg, so this one is close to that.

The flights use more than one pair of airports: BOS to MCO (64%), PVD to MCO (25%), MHT to MCO (12%). The figures here cover all of them.

The airlines on this route differ by 28% per passenger. Frontier Airlines burned 2,236 gallons per flight and 159 passengers on each, and JetBlue 2,453 gallons and 136 passengers. Fuel burned per flight explains about 37% of the gap and the number of passengers on each flight the other 63%. Frontier Airlines flew 77% full here against 82% for JetBlue, flying mostly Airbus A320neo against Airbus A320-200.

For comparison, the EPA default factor for a flight of this length (0.129 kg per passenger-mile) would give 143 kg. The EPA figure is a national average for flights of that length. The measured figure for this route is 14% higher.

2019 compared with 2025

In 2019 the route carried 2.0 million passengers on 14 thousand flights. In 2025 it carried 2.1 million, up 6%, on 15 thousand flights, up 9%. The average flight had 172 seats then and 170 now, and 85% of them were filled against 83%.

CO2 per passenger was 158 kg in 2019 and 163 kg in 2025, up 3.2%. Fuel burned per flight was down 0.3% (2,378 gallons to 2,371) and passengers per flight were down 3.4% (146 to 141). The distance flown was about the same (1,109 miles then, 1,111 now).

JetBlue led in both years, with 41% of passengers in 2019 and 44% in 2025. Delta Air Lines gained the most share, 14% to 19%. Frontier Airlines lost the most, 9% to 3%. Breeze Airways didn't have 1% of the passengers in 2019 and now carries 5%.

Airline by airline, Delta Air Lines went from 177 kg to 164 kg per passenger (166 seats per flight to 190, main aircraft Airbus A320-200 then and Airbus A321 now); JetBlue went from 163 kg to 176 kg per passenger (175 seats per flight to 166, main aircraft Airbus A320-200 in both years).

Orlando to Boston, 2019 and 2025

Measure	2019	2025
Passengers (thousands)	2,032	2,147
Flights (thousands)	13.9	15.2
Seats filled	85%	83%
Gallons of fuel per flight	2,378	2,371
kg CO2 per passenger	158	163

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.

Orlando to Boston and back: time in the air

Flights from Boston to Orlando spent 162 minutes in the air on average in 2025, against 146 minutes from Orlando to Boston: 16 minutes longer, 11% 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 925 gallons per flight hour, those extra minutes cost about 250 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
Boston to Orlando	161.9	7,574
Orlando to Boston	145.7	7,607

Fly or drive

Driving is about 1,300 miles by road, which we estimate as 1.17 times the straight-line distance. An average car emits about 386 kg of CO2 on the trip, at the EPA figure of 0.297 kg per vehicle-mile. Alone, that's 136% more than the 163 kg for a passenger on the flight.

With 3 people in the car, driving comes out lower per person than the flight (129 kg each, and 97 kg each for four). A larger SUV or pickup (0.394 kg per mile) would emit about 512 kg per vehicle.

CO2 per person, Orlando to Boston. 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

Airports on this route: Orlando 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.