Airlines and Airports Airline On-Time Statistics and Delay Causes Delay Cause Definition Understanding Delay Data Database Tables Flight Delays at a Glance The U.S. Department of Transportation's (DOT) Bureau of Transportation Statistics (BTS) tracks the on-time performance of domestic flights operated by large air carriers. Summary information on the number of on-time, delayed, canceled and diverted flights appears in DOT's monthly Air Travel Consumer Report, published about 30 days after the month's end, as well as in summary tables posted on this website. BTS began collecting details on the causes of flight delays in June 2003. Summary statistics and raw data are made available to the public at the time the Air Travel Consumer Report is released. Select a carrier: Select an airport: Period from: Period to: All ATA Airlines (TZ) AirTran Airways (FL) Alaska Airlines Inc. (AS) Allegiant Air (G4) Aloha Airlines Inc. (AQ) America West Airlines Inc. (HP) American Airlines Inc. (AA) American Eagle Airlines Inc. (MQ) Atlantic Coast Airlines (DH) Atlantic Southeast Airlines (EV) Comair Inc. (OH) Continental Airlines Inc. (CO) Delta Airlines Inc. (DL) Endeavor Air Inc. (9E) Envoy Air (MQ) ExpressJet Airlines Inc. (EV) ExpressJet Airlines Inc. (XE) ExpressJet Airlines LLC (EV) Frontier Airlines Inc. (F9) Hawaiian Airlines Inc. (HA) Independence Air (DH) JetBlue Airways (B6) Mesa Airlines Inc. (YV) Northwest Airlines Inc. (NW) PSA Airlines Inc. (OH) Pinnacle Airlines Inc. (9E) Republic Airline (YX) SkyWest Airlines Inc. (OO) Southwest Airlines Co. (WN) Spirit Airlines (NK) US Airways Inc. (US) United Airlines Inc. (UA) Virgin America (VX) All All Major Airports Atlanta, GA: Hartsfield-Jackson Atlanta International - ATL Baltimore, MD: Baltimore/Washington International Thurgood Marshall - BWI Boston, MA: Logan International - BOS Charlotte, NC: Charlotte Douglas International - CLT Chicago, IL: Chicago Midway International - MDW Chicago, IL: Chicago O'Hare International - ORD Dallas/Fort Worth, TX: Dallas/Fort Worth International - DFW Denver, CO: Denver International - DEN Detroit, MI: Detroit Metro Wayne County - DTW Fort Lauderdale, FL: Fort Lauderdale-Hollywood International - FLL Honolulu, HI: Daniel K Inouye International - HNL Houston, TX: George Bush Intercontinental/Houston - IAH Las Vegas, NV: McCarran International - LAS Los Angeles, CA: Los Angeles International - LAX Miami, FL: Miami International - MIA Minneapolis, MN: Minneapolis-St Paul International - MSP New York, NY: John F. Kennedy International - JFK New York, NY: LaGuardia - LGA Newark, NJ: Newark Liberty International - EWR Orlando, FL: Orlando International - MCO Philadelphia, PA: Philadelphia International - PHL Phoenix, AZ: Phoenix Sky Harbor International - PHX Portland, OR: Portland International - PDX Salt Lake City, UT: Salt Lake City International - SLC San Diego, CA: San Diego International - SAN San Francisco, CA: San Francisco International - SFO Seattle, WA: Seattle/Tacoma International - SEA Tampa, FL: Tampa International - TPA Washington, DC: Ronald Reagan Washington National - DCA Washington, DC: Washington Dulles International - IAD All Other Airports Aberdeen, SD: Aberdeen Regional - ABR Abilene, TX: Abilene Regional - ABI Adak Island, AK: Adak - ADK Aguadilla, PR: Rafael Hernandez - BQN Akron, OH: Akron-Canton Regional - CAK Albany, GA: Southwest Georgia Regional - ABY Albany, NY: Albany International - ALB Albuquerque, NM: Albuquerque International Sunport - ABQ Alexandria, LA: Alexandria International - AEX Allentown/Bethlehem/Easton, PA: Lehigh Valley International - ABE Alpena, MI: Alpena County Regional - APN Amarillo, TX: Rick Husband Amarillo International - AMA Anchorage, AK: Ted Stevens Anchorage International - ANC Appleton, WI: Appleton International - ATW Arcata/Eureka, CA: California Redwood Coast Humboldt County - ACV Asheville, NC: Asheville Regional - AVL Ashland, WV: Tri-State/Milton J. Ferguson Field - HTS Aspen, CO: Aspen Pitkin County Sardy Field - ASE Atlantic City, NJ: Atlantic City International - ACY Augusta, GA: Augusta Regional at Bush Field - AGS Austin, TX: Austin - Bergstrom International - AUS Bakersfield, CA: Meadows Field - BFL Bangor, ME: Bangor International - BGR Barrow, AK: Wiley Post/Will Rogers Memorial - BRW Baton Rouge, LA: Baton Rouge Metropolitan/Ryan Field - BTR Beaumont/Port Arthur, TX: Jack Brooks Regional - BPT Belleville, IL: Scott AFB/MidAmerica - BLV Bellingham, WA: Bellingham International - BLI Bemidji, MN: Bemidji Regional - BJI Bend/Redmond, OR: Roberts Field - RDM Bethel, AK: Bethel Airport - BET Billings, MT: Billings Logan International - BIL Binghamton, NY: Greater Binghamton/Edwin A. Link Field - BGM Birmingham, AL: Birmingham-Shuttlesworth International - BHM Bismarck/Mandan, ND: Bismarck Municipal - BIS Bloomington/Normal, IL: Central Il Regional Airport at Bloomington - BMI Boise, ID: Boise Air Terminal - BOI Bozeman, MT: Bozeman Yellowstone International - BZN Brainerd, MN: Brainerd Lakes Regional - BRD Branson, MO: Branson Airport - BKG Bristol/Johnson City/Kingsport, TN: Tri Cities - TRI Brownsville, TX: Brownsville South Padre Island International - BRO Brunswick, GA: Brunswick Golden Isles - BQK Buffalo, NY: Buffalo Niagara International - BUF Bullhead City, AZ: Laughlin/Bullhead International - IFP Burbank, CA: Bob Hope - BUR Burlington, VT: Burlington International - BTV Butte, MT: Bert Mooney - BTM Cape Girardeau, MO: Cape Girardeau Regional - CGI Carlsbad, CA: McClellan-Palomar - CLD Casper, WY: Casper/Natrona County International - CPR Cedar City, UT: Cedar City Regional - CDC Cedar Rapids/Iowa City, IA: The Eastern Iowa - CID Champaign/Urbana, IL: University of Illinois/Willard - CMI Charleston, SC: Charleston AFB/International - CHS Charleston/Dunbar, WV: Yeager - CRW Charlotte Amalie, VI: Cyril E King - STT Charlottesville, VA: Charlottesville Albemarle - CHO Chattanooga, TN: Lovell Field - CHA Cheyenne, WY: Cheyenne Regional/Jerry Olson Field - CYS Chico, CA: Chico Municipal - CIC Christiansted, VI: Henry E. Rohlsen - STX Cincinnati, OH: Cincinnati/Northern Kentucky International - CVG Clarksburg/Fairmont, WV: North Central West Virginia - CKB Cleveland, OH: Cleveland-Hopkins International - CLE Cody, WY: Yellowstone Regional - COD Cold Bay, AK: Cold Bay Airport - CDB College Station/Bryan, TX: Easterwood Field - CLL Colorado Springs, CO: City of Colorado Springs Municipal - COS Columbia, MO: Columbia Regional - COU Columbia, SC: Columbia Metropolitan - CAE Columbus, GA: Columbus Airport - CSG Columbus, MS: Columbus AFB - CBM Columbus, MS: Golden Triangle Regional - GTR Columbus, OH: John Glenn Columbus International - CMH Columbus, OH: Rickenbacker International - LCK Concord, NC: Concord Padgett Regional - USA Cordova, AK: Merle K Mudhole Smith - CDV Corpus Christi, TX: Corpus Christi International - CRP Crescent City, CA: Jack McNamara Field - CEC Dallas, TX: Dallas Love Field - DAL Dayton, OH: James M Cox/Dayton International - DAY Daytona Beach, FL: Daytona Beach International - DAB Deadhorse, AK: Deadhorse Airport - SCC Decatur, IL: Decatur Airport - DEC Del Rio, TX: Del Rio International - DRT Des Moines, IA: Des Moines International - DSM Devils Lake, ND: Devils Lake Regional - DVL Dickinson, ND: Dickinson - Theodore Roosevelt Regional - DIK Dillingham, AK: Dillingham Airport - DLG Dodge City, KS: Dodge City Regional - DDC Dothan, AL: Dothan Regional - DHN Dubuque, IA: Dubuque Regional - DBQ Duluth, MN: Duluth International - DLH Durango, CO: Durango La Plata County - DRO Eagle, CO: Eagle County Regional - EGE Eau Claire, WI: Chippewa Valley Regional - EAU El Centro, CA: Imperial County - IPL El Paso, TX: El Paso International - ELP Elko, NV: Elko Regional - EKO Elmira/Corning, NY: Elmira/Corning Regional - ELM Erie, PA: Erie International/Tom Ridge Field - ERI Escanaba, MI: Delta County - ESC Eugene, OR: Mahlon Sweet Field - EUG Evansville, IN: Evansville Regional - EVV Everett, WA: Snohomish County - PAE Fairbanks, AK: Fairbanks International - FAI Fargo, ND: Hector International - FAR Farmington, NM: Four Corners Regional - FMN Fayetteville, AR: Northwest Arkansas Regional - XNA Fayetteville, NC: Fayetteville Regional/Grannis Field - FAY Flagstaff, AZ: Flagstaff Pulliam - FLG Flint, MI: Bishop International - FNT Florence, SC: Florence Regional - FLO Fort Collins/Loveland, CO: Northern Colorado Regional - FNL Fort Myers, FL: Southwest Florida International - RSW Fort Smith, AR: Fort Smith Regional - FSM Fort Wayne, IN: Fort Wayne International - FWA Fresno, CA: Fresno Yosemite International - FAT Gainesville, FL: Gainesville Regional - GNV Garden City, KS: Garden City Regional - GCK Gillette, WY: Gillette Campbell County - GCC Grand Forks, ND: Grand Forks International - GFK Grand Island, NE: Central Nebraska Regional - GRI Grand Junction, CO: Grand Junction Regional - GJT Grand Rapids, MI: Gerald R. Ford International - GRR Great Falls, MT: Great Falls International - GTF Green Bay, WI: Green Bay Austin Straubel International - GRB Greensboro/High Point, NC: Piedmont Triad International - GSO Greenville, MS: Greenville Mid Delta - GLH Greenville, NC: Pitt Greenville - PGV Greer, SC: Greenville-Spartanburg International - GSP Guam, TT: Guam International - GUM Gulfport/Biloxi, MS: Gulfport-Biloxi International - GPT Gunnison, CO: Gunnison-Crested Butte Regional - GUC Gustavus, AK: Gustavus Airport - GST Hagerstown, MD: Hagerstown Regional-Richard A. Henson Field - HGR Hancock/Houghton, MI: Houghton County Memorial - CMX Harlingen/San Benito, TX: Valley International - HRL Harrisburg, PA: Harrisburg International - MDT Hartford, CT: Bradley International - BDL Hattiesburg/Laurel, MS: Hattiesburg-Laurel Regional - PIB Hayden, CO: Yampa Valley - HDN Hays, KS: Hays Regional - HYS Helena, MT: Helena Regional - HLN Hibbing, MN: Range Regional - HIB Hickory, NC: Hickory Regional - HKY Hilo, HI: Hilo International - ITO Hilton Head, SC: Hilton Head Airport - HHH Hobbs, NM: Lea County Regional - HOB Hoolehua, HI: Molokai - MKK Houston, TX: Ellington - EFD Houston, TX: William P Hobby - HOU Huntsville, AL: Huntsville International-Carl T Jones Field - HSV Hyannis, MA: Barnstable Municipal-Boardman/Polando Field - HYA Idaho Falls, ID: Idaho Falls Regional - IDA Indianapolis, IN: Indianapolis International - IND International Falls, MN: Falls International Einarson Field - INL Inyokern, CA: Inyokern Airport - IYK Iron Mountain/Kingsfd, MI: Ford - IMT Islip, NY: Long Island MacArthur - ISP Ithaca/Cortland, NY: Ithaca Tompkins Regional - ITH Jackson, WY: Jackson Hole - JAC Jackson/Vicksburg, MS: Jackson Medgar Wiley Evers International - JAN Jacksonville, FL: Jacksonville International - JAX Jacksonville/Camp Lejeune, NC: Albert J Ellis - OAJ Jamestown, ND: Jamestown Regional - JMS Joplin, MO: Joplin Regional - JLN Juneau, AK: Juneau International - JNU Kahului, HI: Kahului Airport - OGG Kalamazoo, MI: Kalamazoo/Battle Creek International - AZO Kalispell, MT: Glacier Park International - FCA Kansas City, MO: Charles B. Wheeler Downtown - MKC Kansas City, MO: Kansas City International - MCI Kearney, NE: Kearney Regional - EAR Ketchikan, AK: Ketchikan International - KTN Key West, FL: Key West International - EYW Killeen, TX: Robert Gray AAF - GRK Killeen, TX: Skylark Field - ILE King Salmon, AK: King Salmon Airport - AKN Kinston, NC: Kinston Regional Jetport at Stallings Field - ISO Klamath Falls, OR: Crater Lake Klamath Regional - LMT Knoxville, TN: McGhee Tyson - TYS Kodiak, AK: Kodiak Airport - ADQ Kona, HI: Ellison Onizuka Kona International at Keahole - KOA Kotzebue, AK: Ralph Wien Memorial - OTZ La Crosse, WI: La Crosse Regional - LSE Lafayette, LA: Lafayette Regional Paul Fournet Field - LFT Lake Charles, LA: Lake Charles Regional - LCH Lanai, HI: Lanai Airport - LNY Lansing, MI: Capital Region International - LAN Laramie, WY: Laramie Regional - LAR Laredo, TX: Laredo International - LRD Latrobe, PA: Arnold Palmer Regional - LBE Lawton/Fort Sill, OK: Lawton-Fort Sill Regional - LAW Lewisburg, WV: Greenbrier Valley - LWB Lewiston, ID: Lewiston Nez Perce County - LWS Lexington, KY: Blue Grass - LEX Liberal, KS: Liberal Mid-America Regional - LBL Lihue, HI: Lihue Airport - LIH Lincoln, NE: Lincoln Airport - LNK Little Rock, AR: Bill and Hillary Clinton Nat Adams Field - LIT Long Beach, CA: Long Beach Airport - LGB Longview, TX: East Texas Regional - GGG Louisville, KY: Louisville Muhammad Ali International - SDF Lubbock, TX: Lubbock Preston Smith International - LBB Lynchburg, VA: Lynchburg Regional/Preston Glenn Field - LYH Macon, GA: Middle Georgia Regional - MCN Madison, WI: Dane County Regional-Truax Field - MSN Mammoth Lakes, CA: Mammoth Lakes Airport - MMH Manchester, NH: Manchester-Boston Regional - MHT Manhattan/Ft. Riley, KS: Manhattan Regional - MHK Marathon, FL: The Florida Keys Marathon International - MTH Marquette, MI: Sawyer International - MQT Martha's Vineyard, MA: Martha's Vineyard Airport - MVY Medford, OR: Rogue Valley International - Medford - MFR Melbourne, FL: Melbourne International - MLB Memphis, TN: Memphis International - MEM Meridian, MS: Key Field - MEI Midland/Odessa, TX: Midland International Air and Space Port - MAF Milwaukee, WI: General Mitchell International - MKE Minot, ND: Minot International - MOT Mission/McAllen/Edinburg, TX: McAllen Miller International - MFE Missoula, MT: Missoula International - MSO Moab, UT: Canyonlands Field - CNY Mobile, AL: Mobile Downtown - BFM Mobile, AL: Mobile Regional - MOB Modesto, CA: Modesto City-County-Harry Sham Field - MOD Moline, IL: Quad City International - MLI Monroe, LA: Monroe Regional - MLU Monterey, CA: Monterey Regional - MRY Montgomery, AL: Montgomery Regional - MGM Montrose/Delta, CO: Montrose Regional - MTJ Moses Lake, WA: Grant County International - MWH Mosinee, WI: Central Wisconsin - CWA Muskegon, MI: Muskegon County - MKG Myrtle Beach, SC: Myrtle Beach International - MYR Nantucket, MA: Nantucket Memorial - ACK Naples, FL: Naples Municipal - APF Nashville, TN: Nashville International - BNA New Bern/Morehead/Beaufort, NC: Coastal Carolina Regional - EWN New Haven, CT: Tweed New Haven - HVN New Orleans, LA: Louis Armstrong New Orleans International - MSY Newburgh/Poughkeepsie, NY: New York Stewart International - SWF Newport News/Williamsburg, VA: Newport News/Williamsburg International - PHF Niagara Falls, NY: Niagara Falls International - IAG Nome, AK: Nome Airport - OME Norfolk, VA: Norfolk International - ORF North Bend/Coos Bay, OR: Southwest Oregon Regional - OTH North Platte, NE: North Platte Regional Airport Lee Bird Field - LBF Oakland, CA: Metropolitan Oakland International - OAK Ogden, UT: Ogden-Hinckley - OGD Ogdensburg, NY: Ogdensburg International - OGS Oklahoma City, OK: Will Rogers World - OKC Omaha, NE: Eppley Airfield - OMA Ontario, CA: Ontario International - ONT Owensboro, KY: Owensboro Daviess County Regional - OWB Oxnard/Ventura, CA: Oxnard - OXR Paducah, KY: Barkley Regional - PAH Pago Pago, TT: Pago Pago International - PPG Palm Springs, CA: Palm Springs International - PSP Palmdale, CA: Palmdale USAF Plant 42 - PMD Panama City, FL: Bay County - PFN Panama City, FL: Northwest Florida Beaches International - ECP Pasco/Kennewick/Richland, WA: Tri Cities - PSC Pellston, MI: Pellston Regional Airport of Emmet County - PLN Pensacola, FL: Pensacola International - PNS Peoria, IL: General Downing - Peoria International - PIA Petersburg, AK: Petersburg James A Johnson - PSG Phoenix, AZ: Phoenix - Mesa Gateway - AZA Pierre, SD: Pierre Regional - PIR Pinehurst/Southern Pines, NC: Moore County - SOP Pittsburgh, PA: Pittsburgh International - PIT Plattsburgh, NY: Plattsburgh International - PBG Pocatello, ID: Pocatello Regional - PIH Ponce, PR: Mercedita - PSE Portland, ME: Portland International Jetport - PWM Portsmouth, NH: Portsmouth International at Pease - PSM Prescott, AZ: Prescott Regional Ernest A Love Field - PRC Providence, RI: Theodore Francis Green State - PVD Provo, UT: Provo Municipal - PVU Pueblo, CO: Pueblo Memorial - PUB Punta Gorda, FL: Punta Gorda Airport - PGD Quincy, IL: Quincy Regional-Baldwin Field - UIN Raleigh/Durham, NC: Raleigh-Durham International - RDU Rapid City, SD: Ellsworth AFB - RCA Rapid City, SD: Rapid City Regional - RAP Redding, CA: Redding Municipal - RDD Reno, NV: Reno/Tahoe International - RNO Rhinelander, WI: Rhinelander/Oneida County - RHI Richmond, VA: Richmond International - RIC Riverton/Lander, WY: Riverton Regional - RIW Roanoke, VA: Roanoke Blacksburg Regional Woodrum Field - ROA Rochester, MN: Rochester International - RST Rochester, NY: Greater Rochester International - ROC Rock Springs, WY: Southwest Wyoming Regional - RKS Rockford, IL: Chicago/Rockford International - RFD Roswell, NM: Roswell International Air Center - ROW Sacramento, CA: Sacramento International - SMF Saginaw/Bay City/Midland, MI: MBS International - MBS Saipan, TT: Francisco C. Ada Saipan International - SPN Salem, OR: McNary Field - SLE Salina, KS: Salina Regional - SLN San Angelo, TX: San Angelo Regional/Mathis Field - SJT San Antonio, TX: San Antonio International - SAT San Jose, CA: Norman Y. Mineta San Jose International - SJC San Juan, PR: Luis Munoz Marin International - SJU San Luis Obispo, CA: San Luis County Regional - SBP Sanford, FL: Orlando Sanford International - SFB Santa Ana, CA: John Wayne Airport-Orange County - SNA Santa Barbara, CA: Santa Barbara Municipal - SBA Santa Fe, NM: Santa Fe Municipal - SAF Santa Maria, CA: Santa Maria Public/Capt. G. Allan Hancock Field - SMX Santa Rosa, CA: Charles M. Schulz - Sonoma County - STS Sarasota/Bradenton, FL: Sarasota/Bradenton International - SRQ Sault Ste. Marie, MI: Chippewa County International - CIU Savannah, GA: Savannah/Hilton Head International - SAV Scottsbluff, NE: Western Neb. Regional/William B. Heilig Field - BFF Scranton/Wilkes-Barre, PA: Wilkes Barre Scranton International - AVP Sheridan, WY: Sheridan County - SHR Shreveport, LA: Shreveport Regional - SHV Sioux City, IA: Sioux Gateway Brig Gen Bud Day Field - SUX Sioux Falls, SD: Joe Foss Field - FSD Sitka, AK: Sitka Rocky Gutierrez - SIT South Bend, IN: South Bend International - SBN Spokane, WA: Fairchild AFB - SKA Spokane, WA: Spokane International - GEG Springfield, IL: Abraham Lincoln Capital - SPI Springfield, MO: Springfield-Branson National - SGF St. Augustine, FL: Northeast Florida Regional - UST St. Cloud, MN: St. Cloud Regional - STC St. George, UT: St George Regional - SGU St. Louis, MO: St Louis Lambert International - STL St. Petersburg, FL: St Pete Clearwater International - PIE State College, PA: University Park - SCE Staunton, VA: Shenandoah Valley Regional - SHD Stillwater, OK: Stillwater Regional - SWO Stockton, CA: Stockton Metropolitan - SCK Sun Valley/Hailey/Ketchum, ID: Friedman Memorial - SUN Syracuse, NY: Syracuse Hancock International - SYR Tallahassee, FL: Tallahassee International - TLH Telluride, CO: Telluride Regional - TEX Texarkana, AR: Texarkana Regional-Webb Field - TXK Tokeen, AK: Tokeen Airport - TKI Toledo, OH: Toledo Express - TOL Topeka, KS: Topeka Regional - FOE Traverse City, MI: Cherry Capital - TVC Trenton, NJ: Trenton Mercer - TTN Tucson, AZ: Tucson International - TUS Tulsa, OK: Tulsa International - TUL Tunica, MS: Tunica Municipal - UTM Tupelo, MS: Tupelo Regional - TUP Twin Falls, ID: Joslin Field - Magic Valley Regional - TWF Tyler, TX: Tyler Pounds Regional - TYR Unalaska, AK: Unalaska Airport - DUT Valdosta, GA: Valdosta Regional - VLD Valparaiso, FL: Eglin AFB Destin Fort Walton Beach - VPS Vernal, UT: Vernal Regional - VEL Victoria, TX: Victoria Regional - VCT Visalia, CA: Visalia Municipal - VIS Waco, TX: Waco Regional - ACT Waterloo, IA: Waterloo Regional - ALO Watertown, NY: Watertown International - ART Watertown, SD: Watertown Regional - ATY Wendover, UT: Wendover Airport - ENV West Palm Beach/Palm Beach, FL: Palm Beach International - PBI West Yellowstone, MT: Yellowstone - WYS White Plains, NY: Westchester County - HPN Wichita Falls, TX: Sheppard AFB/Wichita Falls Municipal - SPS Wichita, KS: Wichita Dwight D Eisenhower National - ICT Williston, ND: Sloulin Field International - ISN Williston, ND: Williston Basin International - XWA Wilmington, DE: New Castle - ILG Wilmington, NC: Wilmington International - ILM Worcester, MA: Worcester Regional - ORH Wrangell, AK: Wrangell Airport - WRG Yakima, WA: Yakima Air Terminal/McAllister Field - YKM Yakutat, AK: Yakutat Airport - YAK Youngstown/Warren, OH: Youngstown-Warren Regional - YNG Yuma, AZ: Yuma MCAS/Yuma International - YUM June, 2020 May, 2020 April, 2020 March, 2020 February, 2020 January, 2020 December, 2019 November, 2019 October, 2019 September, 2019 August, 2019 July, 2019 June, 2019 May, 2019 April, 2019 March, 2019 February, 2019 January, 2019 December, 2018 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National (June, 2020) Most Recent Month Year to Date View Tabular Version Download Raw Data On Time: 92.80 Air Carrier Delay: 2.96 Weather Delay: 0.53 National Aviation System Delay: 1.85 Security Delay: 0.03 Aircraft Arriving Late: 1.32 Cancelled: 0.36 Diverted: 0.16 More Topics: Flight Delays by Cause

Weather's Share of Delayed Flights

Weather's Share of National Aviation System (NAS) Delays

National Aviation System (NAS) Delay by Cause A flight is considered delayed when it arrived 15 or more minutes than the schedule (see definitions in Frequently Asked Questions). Delayed minutes are calculated for delayed flights only.

When multiple causes are assigned to one delayed flight, each cause is prorated based on delayed minutes it is responsible for. The displayed numbers are rounded and may not add up to the total.



SOURCE: Bureau of Transportation Statistics, Airline Service Quality Performance 234