Rankings / Airlines

Every airline

13 airlines flew scheduled passenger service in 2025 with enough volume to rank. Each page has the full history back to its first year in the data.

Flying in 2025

Frontier Airlines 83.0 passenger-miles per gallon. In the data since 2000. Alaska Airlines 78.5 passenger-miles per gallon (with regional partners). In the data since 2000. Spirit Airlines 76.5 passenger-miles per gallon. In the data since 2000. Hawaiian Airlines 73.2 passenger-miles per gallon. In the data since 2000. Allegiant Air 70.3 passenger-miles per gallon. In the data since 2005. American Airlines 68.6 passenger-miles per gallon (with regional partners). In the data since 2000. Delta Air Lines 66.6 passenger-miles per gallon (with regional partners). In the data since 2000. United Airlines 65.5 passenger-miles per gallon (with regional partners). In the data since 2000. JetBlue 64.9 passenger-miles per gallon. In the data since 2000. Southwest Airlines 64.3 passenger-miles per gallon. In the data since 2000. Avelo Airlines 62.3 passenger-miles per gallon. In the data since 2023. Breeze Airways 62.1 passenger-miles per gallon. In the data since 2022. Sun Country Airlines 53.0 passenger-miles per gallon. In the data since 2000.

No longer in the data

These airlines stopped flying, merged into another filer or fell below the size cutoff. Their history stays here.

AirTran Airways 2000 to 2011. Last figure 52.0 passenger-miles per gallon. Aloha Airlines 2000 to 2007. Last figure 37.6 passenger-miles per gallon. America West Airlines 2000 to 2007. Last figure 54.6 passenger-miles per gallon. ATA Airlines 2000 to 2007. Last figure 68.9 passenger-miles per gallon. Continental Airlines 2000 to 2011. Last figure 60.9 passenger-miles per gallon. Midway Airlines 2000 to 2001. Last figure 42.3 passenger-miles per gallon. Midwest Airline 2000 to 2009. Last figure 47.0 passenger-miles per gallon. National Airlines 2000 to 2002. Last figure 46.7 passenger-miles per gallon. Northwest Airlines 2000 to 2009. Last figure 52.2 passenger-miles per gallon. Trans World Airlines 2000 to 2001. Last figure 38.7 passenger-miles per gallon. US Airways 2000 to 2015. Last figure 57.3 passenger-miles per gallon. USA 3000 Airlines 2004 to 2010. Last figure 58.8 passenger-miles per gallon. Vanguard Airlines 2000 to 2002. Last figure 33.6 passenger-miles per gallon. Virgin America 2008 to 2017. Last figure 63.0 passenger-miles per gallon.