--- title: "Billings (BIL) to Chicago (ORD) flights: who flies it" description: "American Airlines flies nonstop from BIL to ORD, about 7 flights a week, scheduled at 3h 2m. See confirmed upgrade and award space by date on 2LNR, the next 14 days free." canonical: "https://2lnr.com/routes/bil-ord" url: "https://2lnr.com/routes/bil-ord.md" date_modified: "2026-10-18T05:10:47Z" --- # Billings to Chicago (BIL-ORD): nonstop upgrade & award space American Airlines flies the BIL to ORD nonstop about 7 times a week. In the timetable below it flies as AA 3617, scheduled at 3h 2m for the 1,058 miles. 2LNR checks confirmed upgrade and award space on American Airlines flights on this route, so you can see which departures have space before you book. Schedule last confirmed October 18, 2026. Departure times come from 2LNR's schedule data; confirm with the airline before you book. Updated October 23, 2026. See BIL to ORD on the interactive map [Get started free](https://2lnr.com/login) 7 Flights a week, 4-week average 3h 2m Scheduled flight time 1,058 mi Nonstop distance Free To get started ## Billings to Chicago flight schedule Scheduled nonstop departures for BIL to ORD starting October 22, 2026, last checked against our schedule feed on October 18, 2026. Airlines retime and cancel flights, so confirm with the airline before you book. Scheduled nonstop departures from Billings (BIL) to Chicago (ORD) | Date | Flight | Airline | Departs BIL | Arrives ORD | Duration | Aircraft | | :--- | :--- | :--- | :--- | :--- | :--- | :--- | | Thu, May 6 | AA 3617 | American Airlines | 12:42 | 16:44 | 3h 2m | [Embraer E175](https://2lnr.com/seatmaps/aa/e175.md) | | Fri, May 7 | AA 3617 | American Airlines | 12:42 | 16:44 | 3h 2m | Embraer E175 | | Sat, May 8 | AA 3617 | American Airlines | 12:42 | 16:44 | 3h 2m | Embraer E175 | | Sun, May 9 | AA 3617 | American Airlines | 12:42 | 16:44 | 3h 2m | Embraer E175 | | Mon, May 10 | AA 3617 | American Airlines | 12:42 | 16:44 | 3h 2m | Embraer E175 | | Tue, May 11 | AA 3617 | American Airlines | 12:42 | 16:44 | 3h 2m | Embraer E175 | | Wed, May 12 | AA 3617 | American Airlines | 12:42 | 16:44 | 3h 2m | Embraer E175 | Showing all 7 scheduled BIL to ORD departures across 7 days with service, starting October 22, 2026. Later dates are on the interactive map. Departure and arrival times are local at their own airport, so an arrival can fall on a different local date than the departure; the duration column is the true elapsed flying time. A dash means the airline hasn't filed that value in the schedule data we hold. Aircraft are the equipment the airline filed, named where the code pins down one type and shown as the family or the bare code where it doesn't. Swaps can happen up to departure. See every BIL to ORD date on the interactive map ## Aircraft on the Billings to Chicago nonstop American Airlines flies the [Embraer E175](https://2lnr.com/seatmaps/aa/e175.md) on every departure in the schedule table on this page. Each linked aircraft page shows where that airline schedules it. Airlines can swap aircraft up to departure. ## Confirmed upgrade & award space on BIL to ORD departures 2LNR tracks confirmed upgrade and award space on American Airlines, segment by segment and date by date. Open the calendar for Billings to Chicago to see which departures have space, the next 14 days free on every product and the full horizon on Pro. ### See real availability Confirmed upgrade or award seats by date on the BIL to ORD departures 2LNR tracks, checked against live inventory so you know what's open before you book. ### Set an alert Premium inventory turns over fast. Watch this route on Pro and 2LNR notifies you when space appears on a date you're tracking. ### Plan on the map See BIL to ORD on the interactive route map, with schedules, connections, and route statistics. ## Airlines flying Billings to Chicago nonstop Carriers operating BIL to ORD nonstop in the current schedule. Where 2LNR tracks the carrier, its departures show confirmed upgrade or award space by date. - [American Airlines (AA) route map](https://2lnr.com/routes/airlines/aa.md)\ [The aircraft AA flies](https://2lnr.com/seatmaps/aa.md) See BIL to ORD on the interactive map → ## Frequently asked questions about BIL to ORD **How long is the flight from Billings (BIL) to Chicago (ORD)?** AA 3617 is scheduled at 3h 2m from Billings (BIL) to Chicago (ORD) on every departure in the schedule table on this page. The nonstop covers about 1,058 miles, and airlines adjust scheduled times by season, so confirm with the airline before you book. **Which airlines fly nonstop from BIL to ORD?** American Airlines is currently the only airline flying BIL to ORD nonstop. 2LNR tracks confirmed upgrade and award space on American Airlines. **How many flights a week are there from BIL to ORD?** About 7 nonstop flights a week run between Billings (BIL) and Chicago (ORD) in the current schedule, operated by American Airlines. Frequency shifts by season, and the schedule table on this page shows what is scheduled next. **What time do flights from BIL to ORD depart?** In the next 7 days with service, every scheduled BIL to ORD nonstop leaves at 12:42 local time at Billings. The schedule table on this page lists each departure by date. **Which flights operate BIL to ORD nonstop?** American Airlines flies AA 3617 nonstop from Billings (BIL) to Chicago (ORD), the only flight number in the schedule table on this page. The table lists each date with its departure and arrival times and aircraft. **How do I check upgrade or award availability on BIL to ORD?** Open the BIL to ORD route on the interactive map or the matrix to see confirmed upgrade and award space by date on American Airlines, the next 14 days free and the full horizon on Pro. On Pro you can also set an alert on the route and 2LNR notifies you when space opens. Flying the other way? See [ORD to BIL upgrade and award space](https://2lnr.com/routes/ord-bil.md). Award seats rather than schedules? See [American Airlines award availability](https://2lnr.com/awards/aa.md). Looking beyond this route? See [every route from Billings (BIL)](https://2lnr.com/routes/bil.md), or [every route from Chicago (ORD)](https://2lnr.com/routes/ord.md). Nonstops to Chicago (ORD) from other airports within 150 miles of Billings (BIL): - [Bozeman (BZN) to Chicago (ORD)](https://2lnr.com/routes/bzn-ord.md), 126 miles from BIL Distances are great-circle between the airports, not driving distance. - [How American upgrades clear](https://2lnr.com/about/aa/upgrades.md) - [How to read award availability by date](https://2lnr.com/guides/award-availability.md) ## Never miss BIL to ORD upgrade or award space See what's open by date on this route, the next 14 days free on every product and the full horizon on Pro. [Get started free](https://2lnr.com/login)