City-level data - select up to 3 cities and click Submit button. Graphics scales may vary by city.

Spirit Airlines' data for the 6 quarters from the 4th quarter of 2007 to the 1st quarter of 2009 are not included in July 29, 2009 release because the airline is updating its reports. Atlantic City, NJ, is not included because Spirit operates more than 90 percent of the flights there. Atlantic City average fares in the July 23, 2008 press release were based on incorrect data. The data available on the BTS website for the 2nd and 3rd quarters of 2008 have been revised.

Average fares in cities in which Southwest Airlines has a large market share may not be comparable for the period before 1998. Before 1998, Southwest reported all passengers as one-way passengers with one-way fares. Beginning 3rd Quarter 1998, the Department of Transportation removed the reporting exemption and Southwest began reporting complete round-trip journeys. Southwest's reported fares roughly doubled after the reporting change.

BTS average fares are computed using domestic itinerary fares, round-trip or one-way for which no return is purchased. Fares are based on the total ticket value which consists of the price charged by the airlines plus any additional taxes and fees levied by an outside entity at the time of purchase. Fares include only the price paid at the time of the ticket purchase and do not include other fees paid at the airport or onboard the aircraft. Averages do not include frequent-flyer or "zero fares" or a few abnormally high reported fares.