99 public-use fields

Illinois Airport Density Altitude

Illinois has 99 public-use airports, and none of them typically exceed 5,000 ft of density altitude even on a summer afternoon — heat still trims performance, but the climate keeps typical density altitudes low.

Every field, worst typical afternoon first

Field elevation from FAA NASR · worst typical afternoon of each field's hottest month from NOAA 1991–2020 normals at the nearest station · standard pressure, dry air
Airport	City	Field elev	Worst typical afternoon DA	Month
KBMI — Central Il Regional/Bloomington-Normal	Bloomington/Normal	871 ft	2,803 ft	July
C55 — Ogle County	Mount Morris	929 ft	2,782 ft	July
06C — Schaumburg Regional	Chicago/Schaumburg	801 ft	2,773 ft	July
3LF — Litchfield Municipal	Litchfield	691 ft	2,750 ft	July
KTIP — Rantoul Ntl Avn Cntr-Frank Elliott Field	Rantoul	738 ft	2,733 ft	July
0C0 — Dacy	Harvard	913 ft	2,701 ft	July
3CK — Lake In The Hills	Chicago/Lake In The Hills	887 ft	2,700 ft	July
KPPQ — Pittsfield Penstone Municipal	Pittsfield	710 ft	2,699 ft	July
3MY — Mount Hawley Auxiliary	Peoria	793 ft	2,684 ft	July
KUIN — Quincy Regional-Baldwin Field	Quincy	769 ft	2,679 ft	July
KDKB — De Kalb Taylor Municipal	De Kalb	913 ft	2,676 ft	July
KEZI — Kewanee Municipal	Kewanee	858 ft	2,671 ft	July
I63 — Mount Sterling Municipal	Mount Sterling	734 ft	2,667 ft	July
1H8 — Casey Municipal	Casey	655 ft	2,645 ft	July
C77 — Poplar Grove	Poplar Grove	857 ft	2,632 ft	July
1H2 — Effingham County Regional	Effingham	585 ft	2,608 ft	July
KCMI — University Of Illinois/Willard	Champaign/Urbana	755 ft	2,601 ft	July
KMTO — Coles County Meml	Mattoon/Charleston	722 ft	2,597 ft	July
C16 — Frasca Field	Urbana	735 ft	2,588 ft	July
KMQB — Macomb Municipal	Macomb	706 ft	2,584 ft	July
C56 — Bult Field	Monee	790 ft	2,575 ft	July
1C1 — Paxton	Paxton	779 ft	2,574 ft	July
2T2 — Percival Springs	Watson	552 ft	2,568 ft	July
KFEP — Albertus	Freeport	859 ft	2,567 ft	July
KPIA — General Downing - Peoria International	Peoria	661 ft	2,566 ft	July
C00 — Mercer County	Aledo	740 ft	2,564 ft	July
5K1 — Zelmer Meml Airpark Inc	Palmyra	663 ft	2,562 ft	July
KDEC — Decatur	Decatur	682 ft	2,561 ft	July
KBLV — Scott AFB/Midamerica St Louis	Belleville	459 ft	2,559 ft	July
KCTK — Ingersoll	Canton	684 ft	2,557 ft	July
10C — Galt Field	Greenwood/Wonder Lake	875 ft	2,555 ft	July
KDNV — Vermilion Regional	Danville	697 ft	2,554 ft	July
KSLO — Salem-Leckrone	Salem	573 ft	2,551 ft	July
KGBG — Harrel W Timmons Galesburg Regional	Galesburg	764 ft	2,550 ft	July
KDPA — Dupage	Chicago/West Chicago	759 ft	2,544 ft	July
C66 — Monmouth Municipal	Monmouth	753 ft	2,543 ft	July
KGRE — Greenville	Greenville	541 ft	2,542 ft	July
H07 — Highland-Winet	Highland	537 ft	2,538 ft	July
KIJX — Jacksonville Municipal	Jacksonville	624 ft	2,533 ft	July
KTAZ — Taylorville Municipal	Taylorville	622 ft	2,525 ft	July
KSPI — Abraham Lincoln Capital	Springfield	598 ft	2,520 ft	July
KRFD — Chicago/Rockford International	Chicago/Rockford	742 ft	2,517 ft	July
1C8 — Cottonwood	Rockford	741 ft	2,516 ft	July
C75 — Marshall County	Lacon	585 ft	2,516 ft	July
KARR — Aurora Municipal	Chicago/Aurora	712 ft	2,511 ft	July
3G8 — Gen-Airpark	Geneseo	645 ft	2,510 ft	July
KFOA — Flora Municipal	Flora	473 ft	2,502 ft	July
KSAR — Sparta Community-Hunter Field	Sparta	538 ft	2,502 ft	July
2H0 — Shelby County	Shelbyville	619 ft	2,496 ft	July
C73 — Dixon Municipal-Charles R Walgreen Field	Dixon	785 ft	2,495 ft	July
KFWC — Fairfield Municipal	Fairfield	434 ft	2,492 ft	July
KLOT — Lewis University	Chicago/Romeoville	679 ft	2,489 ft	July
K96 — Tuscola	Tuscola	665 ft	2,485 ft	July
KALN — St Louis Regional	Alton/St Louis	544 ft	2,485 ft	July
KENL — Centralia Municipal	Centralia	534 ft	2,485 ft	July
1C5 — Bolingbrook'S Clow International	Bolingbrook	675 ft	2,484 ft	July
KORD — Chicago O'Hare International	Chicago	680 ft	2,478 ft	July
C82 — Bresson	Compton	769 ft	2,469 ft	July
KMLI — Quad Cities International	Moline	590 ft	2,467 ft	July
9I0 — Havana Regional	Havana	488 ft	2,466 ft	July
C81 — Campbell	Grayslake	788 ft	2,462 ft	July
5K4 — Schuy-Rush	Rushville	665 ft	2,460 ft	July
KRPJ — Rochelle Municipal/Koritz Field	Rochelle	781 ft	2,459 ft	July
0C8 — Cushing Field Ltd	Newark	640 ft	2,454 ft	July
KPNT — Pontiac Municipal	Pontiac	666 ft	2,449 ft	July
KMWA — Veterans Airport Of Southern Illinois	Marion	472 ft	2,446 ft	July
KVLA — Vandalia Municipal	Vandalia	537 ft	2,446 ft	July
KPRG — Edgar County	Paris	654 ft	2,440 ft	July
KIKK — Greater Kankakee	Kankakee	630 ft	2,436 ft	July
KMDW — Chicago Midway International	Chicago	620 ft	2,436 ft	July
KAAA — Logan County	Lincoln	594 ft	2,435 ft	July
3KK — Kankakee	Kankakee	625 ft	2,430 ft	July
KCPS — St Louis Downtown	Cahokia/St Louis	413 ft	2,429 ft	July
KSFY — Tri-Township	Savanna	616 ft	2,425 ft	July
H96 — Benton Municipal	Benton	444 ft	2,418 ft	July
KHSB — Harrisburg-Raleigh	Harrisburg	398 ft	2,417 ft	July
KVYS — Illinois Valley Regional-Walter A Duncan Field	Peru	654 ft	2,416 ft	July
C15 — Pekin Municipal	Pekin	530 ft	2,406 ft	July
KAJG — Mount Carmel Municipal	Mount Carmel	429 ft	2,406 ft	July
KPWK — Chicago Exec	Chicago/Prospect Heights/Wheeling	645 ft	2,405 ft	July
2C6 — Tri-County	Yates City	661 ft	2,399 ft	July
0C2 — Hinckley	Hinckley	760 ft	2,390 ft	July
KMDH — Southern Illinois	Carbondale/Murphysboro	411 ft	2,390 ft	July
C09 — Morris Municipal/James R Washburn Field	Morris	585 ft	2,387 ft	July
KOLY — Olney-Noble	Olney-Noble	482 ft	2,378 ft	July
M30 — Metropolis Municipal	Metropolis	384 ft	2,370 ft	July
8N2 — Skydive Chicago	Ottawa	616 ft	2,369 ft	July
KIGQ — Lansing Municipal	Chicago	620 ft	2,368 ft	July
KLWV — Lawrenceville-Vincennes International	Lawrenceville	430 ft	2,364 ft	July
KDTG — Dwight	Dwight	632 ft	2,358 ft	July
KUGN — Waukegan Ntl	Chicago/Waukegan	728 ft	2,339 ft	July
KRSV — Crawford County	Robinson	461 ft	2,334 ft	July
KSQI — Whiteside County/Jos H Bittorf Field	Sterling/Rockfalls	648 ft	2,328 ft	July
KCUL — Carmi Municipal	Carmi	388 ft	2,313 ft	July
KMVN — Mount Vernon	Mount Vernon	480 ft	2,308 ft	July
KJOT — Joliet Regional	Joliet	582 ft	2,303 ft	July
KPJY — Pinckneyville/Du Quoin	Pinckneyville	400 ft	2,303 ft	July
KCIR — Cairo Regional	Cairo	322 ft	2,300 ft	July
K06 — Greater Beardstown	Beardstown	465 ft	2,216 ft	July

▲ above 5,000 ft · ⚠ above 8,000 ft on a typical afternoon of the airport's hottest month. Open any field for its monthly table and a pre-filled calculator.

Frequently asked questions

Which Illinois airport has the highest density altitude in summer?

Central Il Regional/Bloomington-Normal (KBMI) tops the list: from 871 ft of field elevation, a typical summer afternoon reaches about 2,803 ft of density altitude. Each airport's page carries its full monthly table.

What is the highest airport in Illinois?

Ogle County (C55) at 929 ft MSL, per the FAA airport record. Elevation is the biggest single term in density altitude — the summer heat gets added on top of it.