--- title: "Chicago (ORD) to Billings (BIL) flights: who flies it" description: "American Airlines and United Airlines fly nonstop from ORD to BIL, about 7 flights a week. See confirmed upgrade and award space by date on 2LNR, the next 14 days free." canonical: "https://2lnr.com/routes/ord-bil" url: "https://2lnr.com/routes/ord-bil.md" date_modified: "2026-10-18T05:10:47Z" --- # Chicago to Billings (ORD-BIL): nonstop upgrade & award space American Airlines and United Airlines fly the ORD to BIL nonstop about 7 times a week. The timetable below shows the nonstop scheduled at 3h 23m 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 ORD to BIL on the interactive map [Get started free](https://2lnr.com/login) 7 Flights a week, 4-week average 3h 23m Scheduled flight time 1,058 mi Nonstop distance Free To get started ## Chicago to Billings flight schedule Scheduled nonstop departures for ORD to BIL 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 Chicago (ORD) to Billings (BIL) | Date | Flight | Airline | Departs ORD | Arrives BIL | Duration | Aircraft | | :--- | :--- | :--- | :--- | :--- | :--- | :--- | | Thu, May 27 | AA 3428 | American Airlines | 09:45 | 12:08 | 3h 23m | [Embraer E175](https://2lnr.com/seatmaps/aa/e175.md) | | Fri, May 28 | AA 3428 | American Airlines | 09:45 | 12:08 | 3h 23m | Embraer E175 | | Sat, May 29 | AA 3428 | American Airlines | 09:45 | 12:08 | 3h 23m | Embraer E175 | | Sun, May 30 | AA 3428 | American Airlines | 09:45 | 12:08 | 3h 23m | Embraer E175 | | Mon, May 31 | AA 3428 | American Airlines | 09:45 | 12:08 | 3h 23m | Embraer E175 | | Tue, Jun 1 | AA 3428 | American Airlines | 09:45 | 12:08 | 3h 23m | Embraer E175 | | Wed, Jun 2 | AA 3428 | American Airlines | 09:45 | 12:08 | 3h 23m | Embraer E175 | Showing all 7 scheduled ORD to BIL 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 ORD to BIL date on the interactive map ## Aircraft on the Chicago to Billings 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 ORD to BIL departures 2LNR tracks confirmed upgrade and award space on American Airlines, segment by segment and date by date. Open the calendar for Chicago to Billings 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 ORD to BIL 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 ORD to BIL on the interactive route map, with schedules, connections, and route statistics. ## Airlines flying Chicago to Billings nonstop Carriers operating ORD to BIL 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) - [United Airlines (UA) route map](https://2lnr.com/routes/airlines/ua.md)\ [The aircraft UA flies](https://2lnr.com/seatmaps/ua.md) See ORD to BIL on the interactive map → ## Frequently asked questions about ORD to BIL **How long is the flight from Chicago (ORD) to Billings (BIL)?** AA 3428 is scheduled at 3h 23m from Chicago (ORD) to Billings (BIL) 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 ORD to BIL?** American Airlines and United Airlines fly ORD to BIL nonstop. 2LNR tracks confirmed upgrade and award space on American Airlines. **How many flights a week are there from ORD to BIL?** About 7 nonstop flights a week run between Chicago (ORD) and Billings (BIL) in the current schedule, operated by American Airlines and United Airlines. Frequency shifts by season, and the schedule table on this page shows what is scheduled next. **What time do flights from ORD to BIL depart?** In the next 7 days with service, every scheduled ORD to BIL nonstop leaves at 09:45 local time at Chicago. The schedule table on this page lists each departure by date. **Which flights operate ORD to BIL nonstop?** American Airlines flies AA 3428 nonstop from Chicago (ORD) to Billings (BIL), 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 ORD to BIL?** Open the ORD to BIL 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 [BIL to ORD upgrade and award space](https://2lnr.com/routes/bil-ord.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 Chicago (ORD)](https://2lnr.com/routes/ord.md), or [every route from Billings (BIL)](https://2lnr.com/routes/bil.md). Nonstops from Chicago (ORD) to other airports within 150 miles of Billings (BIL): - [Chicago (ORD) to Cody (COD)](https://2lnr.com/routes/ord-cod.md), 92 miles from BIL - [Chicago (ORD) to Bozeman (BZN)](https://2lnr.com/routes/ord-bzn.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 ORD to BIL 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)