EAU
Chippewa Valley Regional Airport
Chippewa Valley Regional Airport (IATA: EAU, ICAO: KEAU) is a medium airport in Eau Claire, Wisconsin, United States. It opened in Nov 1944. It has 2 runways; the longest is 8,101 ft (2,469 m). In 2025 it handled 53 thousand passengers.
Timeline
1 event · 1944–1944NOV 1944
OpenedChippewa Valley Regional Airport opens.
From Wikidata · FAAEvery airfield, 1903–2026
Runways & airfield
Schematic · N · © OpenStreetMap · FAA diagram PDF04/22045° / 225° · LIT
LENGTH8,101 ft2,469 mWIDTH150 ft46 mSURFACEConcrete
14/32139° / 319° · LIT
LENGTH5,000 ft1,524 mWIDTH100 ft31 mSURFACEConcrete
Passengers per year
2015–202539K
43K
47K
47K
48K
21K
40K
35K
52K
46K
53K
1516171819202122232425
Routes
1 destinations · 1 countryStraight lines are great circles; rings mark true distance from EAU. From the Wikipedia article “Chippewa Valley Regional Airport” (revision of 15 Sep 2026), CC BY-SA 4.0.
Records & rankings
Ranked among 48,011 open airports · world · region · countryScale: share of airports ranked below, best on the right · ties shown as = and a band · passengers are each airport’s latest year on record
Radio frequencies
4 channelsA/DMINNEAPOLIS APP/DEP125.300
ASOSASOS119.675
RDOGREEN BAY RDO122.650
UNICCTAF/UNICOM123.000