Historical clue formulations

• Airport raced through in "Home Alone," in brief — 2026-06-09
• Number indicating position: Abbr. — 2026-01-28
• Chicago airport code — 2026-01-20
• Chicago airport code — 2025-09-26
• Chicago airport code — 2025-09-16
• Airport alternative to MDW — 2025-04-13
• O'Hare identifier — 2023-10-22
• Chicago airport code — 2023-08-21
• Airport at one end of the Kennedy Expwy. — 2023-03-31
• Windy City airport code — 2022-08-25
• Chi-Town airport code — 2022-05-28
• Chicago airport code — 2021-12-23
• Chicago airport code — 2020-03-05
• Chicago airport code — 2020-02-05
• Chicago airport code — 2019-10-08
• Airport code for O'Hare — 2019-03-17
• Onetime California fort — 2019-01-12
• America's busiest airport after ATL and LAX — 2018-12-28
• Chicago airport code — 2018-08-12
• Former fort named for a Union general — 2018-06-01
• Code on a bag to Chicago — 2018-05-06
• Chicago airport code — 2018-03-30
• Chicago terminal code — 2018-03-11
• Chicago airport code — 2018-01-21
• California's old Fort ___ — 2017-09-25
• Chicago airport code — 2015-03-30
• Former fort on Monterey Bay — 2014-05-20
• California's historic Fort ___ — 2012-08-05
• Fort named for a Civil War major general — 2010-07-23
• Municipal reg. — 2009-10-17
• California's Fort ___ — 2009-09-02
• JFK : New York :: ___ : Chicago — 2009-06-25
• Fort ___ on Monterey Bay — 2007-10-03
• Fort ___, former Army post on Monterey Bay — 2007-08-28
• Traffic reg., e.g. — 2007-03-20
• Kind of number: Abbr. — 2006-06-19
• Fort ___, Calif. — 2006-04-12
• City reg. — 2006-03-13
• California's Fort ___ — 2006-03-06
• Statute: Abbr. — 2005-07-17
• Run-of-the-mill: Abbr. — 2004-11-15
• Former California fort — 2004-06-27
• California's Fort ___ — 2004-03-28
• Chicago airport letters — 2003-05-18
• California's Fort ___ Dunes — 2002-04-14
• Former California fort — 2002-03-19
• La Guardia : LGA :: O'Hare : ___ — 2001-03-04
• Run-of-the-mill: Abbr. — 2001-01-22
• Run-of-the-mill: Abbr. — 2000-03-12
• First or second, e.g.: Abbr. — 1999-11-14