List of the busiest airports in the United States
Rank ( 2018 ) Airports ( Medium Hubs ) IATA Code City Served State 2018 2017 2016 2015 2014
31 Dallas Love Field DAL Dallas TX 8,134,848 7,876,769 7,554,596 7,040,921 4,522,341
32 Nashville International Airport BNA Nashville TN 8,007,049 7,015,119 6,338,517 5,708,852 5,396,958
33 Austin-Bergstrom International Airport AUS Austin TX 7,921,797 6,973,115 6,095,545 5,797,547 5,219,982
34 St. Louis Lambert International Airport STL St. Louis MO 7,822,274 7,372,805 6,793,076 6,239,231 6,108,758
35 Norman Y. Mineta San José International Airport SJC San Jose CA 7,140,616 6,225,148 5,321,603 4,885,690 4,621,003
36 William P. Hobby Airport HOU Houston TX 6,937,061 6,741,870 6,285,181 5,937,944 5,800,726
37 Oakland International Airport OAK Oakland CA 6,798,321 6,530,308 5,934,639 5,506,672 5,069,257
38 Louis Armstrong New Orleans International Airport MSY New Orleans LA 6,565,482 6,005,527 5,569,705 5,329,696 4,870,569
39 Raleigh-Durham International Airport RDU Raleigh NC 6,416,822 5,851,004 5,401,714 4,954,717 4,673,869
40 Sacramento International Airport SMF Sacramento CA 6,031,630 5,460,526 4,969,366 4,816,440 4,384,616
41 Kansas City International Airport MCI Kansas City MO 5,935,131 5,744,918 5,391,557 5,135,127 4,982,722
42 John Wayne Airport SNA Orange County CA 5,317,149 5,195,047 5,217,242 4,945,175 4,584,147
43 San Antonio International Airport SAT San Antonio TX 5,028,785 4,521,611 4,179,994 4,091,389 4,046,856
44 Cleveland Hopkins International Airport CLE Cleveland OH 4,836,580 4,562,740 4,205,739 4,083,476 3,686,315
45 Southwest Florida International Airport RSW Fort Myers FL 4,719,468 4,461,304 4,277,214 4,159,212 3,942,387
46 Indianapolis International Airport IND Indianapolis IN 4,695,040 4,376,432 4,216,766 3,889,567 3,605,908
47 Pittsburgh International Airport PIT Pittsburgh PA 4,670,033 4,327,431 3,986,114 3,890,677 3,827,860
48 Luis Muñoz Marín International Airport SJU San Juan PR 4,163,587 4,343,354 4,218,785 4,150,828
49 Cincinnati/Northern Kentucky International Airport CVG Cincinnati OH/KY 3,926,158 3,269,979 3,036,697 2,874,684
50 John Glenn Columbus International Airport CMH Columbus OH 4,054,572 3,765,007 3,567,864 3,312,496 3,115,501
Busiest US airports by total passenger boardings
The FAA uses passenger boarding for a full calendar year to determine Airport Improvement Program ( AIP ) entitlements . [ 1 ] The term hub is used by the FAA to identify very busy commercial service airports . For instance , large hubs are those airports that each account for at least one percent of total US passenger enplanements . Medium hubs are defined as airports that each account for between 0.25 percent and one percent of the total passenger enplanements . The 30 large hubs move 70% of the passengers with a traffic increasing by 2.5% from 2016 to 2017 , while the 31 medium hubs grew by 5.2% and sixteen airports lost airline services between 2014 and 2018 , from 445 to 429 . Mainline carriers are up-gauging their fleet while scope clauses regional aircraft operations and turboprops and 50-seat regional jets are abandoned : aircraft with 50 seats or fewer represented 30% of domestic departures and 12% of seats offered in 2014 , falling to 19% in 2018 and 7% of seats . Accounting for 18% of passenger traffic , medium hubs stimulate point-to-point services like for Southwest Airlines , operating at 29 , carrying most mainline passengers at 24 and more than half at 10 . [ 2 ] Rank ( 2018 ) Airports ( Large hubs ) IATACode Major city served State 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 1 Hartsfield–Jackson Atlanta International Airport ATL Atlanta GA 51,866,464 50,251,964 50,501,858 49,340,732 46,604,273 45,308,407 45,798,809 44,414,121 43,130,585 42,280,868 2 Los Angeles International Airport LAX Los Angeles CA 42,626,783 41,232,432 39,636,042 36,351,226 34,314,197 32,425,892 31,326,268 30,528,737 28,857,755 27,439,897 3 O'Hare International Airport ORD Chicago IL 39,874,879 38,593,028 37,589,899 36,305,668 33,686,811 32,317,835 32,171,743 31,892,301 32,171,831 31,135,732 4 Dallas/Fort Worth International Airport DFW Dallas TX 32,800,721 31,816,933 31,283,579 31,589,832 30,766,940 29,038,128 28,022,877 27,518,358 27,100,656 26,663,984 5 Denver International Airport DEN Denver CO 31,363,573 29,809,097 28,267,394 26,280,043 26,000,591 25,496,885 25,799,832 25,667,499 25,241,962 24,013,669 6 John F. Kennedy International Airport JFK New York NY 30,541,459 29,533,154 29,239,151 27,782,369 26,244,928 25,036,358 24,520,943 23,664,830 22,934,047 22,710,272 7 San Francisco International Airport SFO San Francisco CA 27,794,154 26,900,048 25,707,101 24,190,549 22,756,008 21,704,626 21,284,224 20,038,679 19,359,003 18,467,908 8 Seattle–Tacoma International Airport SEA Seattle WA 24,894,338 22,639,124 21,887,110 21,231,781 18,781,489 17,450,425 16,625,787 16,425,732 15,406,243 15,273,092 9 McCarran International Airport LAS Las Vegas NV 23,655,285 23,364,393 22,833,267 21,824,231 20,551,016 19,946,179 19,941,173 19,854,759 18,996,738 19,445,952 10 Orlando International Airport MCO Orlando FL 23,184,634 21,565,448 20,283,541 18,759,938 17,278,608 16,884,524 17,159,425 17,250,415 17,017,491 16,371,016 11 Newark Liberty International Airport EWR Newark/New York NJ 22,798,354 21,571,198 19,923,009 18,684,818 17,680,826 17,546,506 17,035,098 16,814,092 16,571,754 16,659,441 12 Charlotte Douglas International Airport CLT Charlotte NC 22,283,574 22,011,251 21,511,880 21,913,166 21,542,277 21,346,601 20,032,426 19,022,535 18,629,181 18,165,476 13 Phoenix Sky Harbor International Airport PHX Phoenix AZ 21,623,842 21,185,458 20,896,265 21,351,445 20,344,867 19,525,109 19,556,189 19,750,306 18,907,171 18,559,647 14 George Bush Intercontinental Airport IAH Houston TX 21,157,948 19,603,731 20,062,072 20,595,874 19,772,054 18,952,840 19,038,958 19,306,660 19,528,631 19,290,239 15 Miami International Airport MIA Miami FL 21,025,210 20,709,225 20,875,813 20,986,341 19,468,523 19,420,089 18,987,488 18,342,158 17,017,654 16,187,768 16 Logan International Airport BOS Boston MA 20,010,262 18,759,742 17,749,202 16,290,362 15,425,869 14,810,153 14,293,675 14,171,476 13,561,814 12,566,797 17 Minneapolis–Saint Paul International Airport MSP Minneapolis MN 18,363,493 18,409,704 18,123,844 17,634,252 16,972,678 16,280,835 15,943,751 15,895,653 15,512,487 15,551,206 18 Fort Lauderdale–Hollywood International Airport FLL Fort Lauderdale FL 17,613,957 15,817,043 14,263,270 13,061,607 11,987,607 11,538,140 11,445,101 11,332,466 10,829,810 10,258,118 19 Detroit Metropolitan Airport DTW Detroit MI 17,437,716 17,036,092 16,826,287 16,255,520 15,775,941 15,683,523 15,599,877 15,716,865 15,643,890 15,211,402 20 Philadelphia International Airport PHL Philadelphia PA 15,285,948 14,271,243 14,564,419 15,101,318 14,747,112 14,727,945 14,587,631 14,883,180 14,951,254 15,002,961 21 LaGuardia Airport LGA New York NY 15,059,648 14,614,802 14,706,123 14,762,593 13,415,797 13,372,269 12,818,717 11,989,227 12,001,501 11,084,300 22 Baltimore–Washington International Airport BWI Baltimore/Washington , D.C. MD 13,373,773 12,976,554 12,340,972 11,738,828 11,022,200 11,132,731 11,183,965 11,067,317 10,848,633 10,338,950 23 Salt Lake City International Airport SLC Salt Lake City UT 12,228,677 11,615,954 11,143,738 10,634,519 10,139,065 9,668,048 9,579,836 9,701,756 9,910,493 9,903,821 24 San Diego International Airport SAN San Diego CA 12,176,303 11,139,933 10,340,164 9,985,739 9,333,152 8,878,772 8,686,592 8,465,683 8,430,509 8,453,854 25 Dulles International Airport IAD Washington , D.C. VA 11,628,309 11,024,306 10,596,942 10,363,918 10,415,948 10,570,993 10,785,683 11,043,829 11,276,481 11,132,098 26 Reagan National Airport DCA Washington , D.C. VA 11,367,176 11,506,310 11,470,854 11,242,375 10,057,794 9,838,034 9,462,206 9,053,004 8,736,804 8,490,288 27 Midway International Airport MDW Chicago IL 10,685,565 10,912,074 11,044,353 11,044,387 10,318,311 9,915,646 9,431,796 9,134,576 8,518,957 8,253,620 28 Tampa International Airport TPA Tampa FL 10,369,622 9,548,580 9,194,994 9,150,414 8,531,561 8,267,752 8,216,153 8,174,194 8,137,222 8,263,294 29 Portland International Airport PDX Portland OR 9,805,535 9,435,473 9,071,154 8,340,234 7,878,760 7,452,603 7,142,620 6,808,486 6,582,227 6,430,119 30 Daniel K. Inouye International Airport HNL Honolulu HI 9,578,505 9,743,989 9,656,340 9,656,340 9,463,000 9,466,995 9,210,270 8,643,494 8,740,077 8,739,389
These are lists of the busiest airports in the United States, based on various ranking criteria.