Find the most on-time flight between two airports or check how late your flight is on average, in good weather and bad, before you leave.

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Data on this site is derived from:

The Bureau of Transportation Statistics via

The Federal Aviation Administration

The National Oceanic and Atmospheric Administration

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Example route: BOS to LGA is 66% on-time and 5 min. early on average

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March 12, 2011. Mentioned in The New York Times.

March 14, 2010. Mentioned on National Public Radio.

July 21, 2009. Mentioned in The Washington Post.

June 24, 2009. Mentioned in The Politico.