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U.S. Airlines Improve On-Time Performance in June, Up 4 Percent From Last Year

An average of 78 percent of flights on major U.S. airlines arrived on time during the month of June, according to statistics released by the Transportation Department on Wednesday.

The on-time statistic is up from 74.8 percent in June 2015, but down from 83 percent this past May. The government counts a flight on time if it arrives within 14 minutes of schedule.

Fliers also filed 1,492 airline complaints to the department in June, down significantly from the 2,048 filed a year ago, but up from the 1,134 received in May, according to a press release.

HAWAIIAN AIRLINES, SEATTLE-TACOMA INTERNATIONAL AIRPORT, SEATC
Hawaiian Airlines aircraft are on the tarmac at Seattle-Tacoma International Airport in Seattle Tuesday, Sept. 12, 2006. Rich Kareckas / AP

Late-arriving aircraft caused the majority of delays during the month of June, accounting for almost 8 percent of all delays. Other significant delaying factors included aviation system issues and maintenance or crew problems. Extreme weather accounted for less than 1 percent of delays.

Hawaiian Airlines and Alaska Airlines had the best on-time ratings, while American Airlines had the worst. The airlines were ranked as follows:

  1. Hawaiian Airlines, 91.1 percent on-time
  2. Alaska Airlines, 86.4 percent
  3. SkyWest, 84.6 percent
  4. Delta Air Lines, 83.4 percent
  5. United Airlines, 79.2 percent
  6. Express Jet, 78.1 percent
  7. Frontier Airlines, 75.6 percent
  8. JetBlue Airways, 74.4 percent
  9. Southwest Airlines, 74.3 percent
  10. Spirit Airlines, 73.0 percent
  11. Virgin America, 72.6 percent
  12. American Airlines, 72.4 percent

The statistics come before this month's computer outage at Delta that caused more than 1,500 flight cancellations and delays while stranding tens of thousands of passengers.