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Federal Aviation Administration

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Recent Regulations and Guidelines

View all Airworthiness Directives

Look Up N-Numbers

N-number format

An N-number can be in any of these formats

  • One to five digits (N12345)
  • One to four digits followed by one letter (N1234Z)
  • One to three digits followed by two letters (N123AZ)

N-numbers do not have

  • A zero (0) as the first number
  • The letters "I" or "O"

Drones/​Unmanned Aircraft Systems (UAS)

Check Airport Status and Delays

Browse Delays

  • IAH

    RWY-TAXI / CONSTRUCTION

    Average delay 3 hours and 41 minutes

  • LGA

    RWY-TAXI / CONSTRUCTION

    Average delay 49 minutes

  • SEA

    WEATHER / FOG

    Average delay 51 minutes

  • SFO

    RWY-TAXI / CONSTRUCTION

    Average delay 2 hours

Browse Delays

There are no airport closures at this time.

Browse Delays

  • IAH

    RWY-TAXI / CONSTRUCTION

    Ending 10:15 am CDT.

  • LGA

    RWY-TAXI / CONSTRUCTION

    Ending 11:15 am EDT.

Browse Delays

  • DFW

    VOL:​Multi-taxi

    16 minutes — 30 minutes

  • HOU

    WX:​Thunderstorms

    31 minutes — 45 minutes

  • IAH

    WX:​Thunderstorms

    15 minutes — 29 minutes

  • LGA

    RWY:​Construction

    31 minutes — 45 minutes

View all flight delay information

Featured Topics and Events

This page was originally published at: https://www.faa.gov/?regulations_?policies/?rulemaking/?sbre_?act/