--- title: "Colorado Springs to Houston flights: who flies COS-IAH" description: "United Airlines flies nonstop from COS to IAH, about 21 flights a week, scheduled at 2h 17m to 2h 35m. See the full timetable and who flies it on 2LNR." canonical: "https://2lnr.com/routes/cos-iah" url: "https://2lnr.com/routes/cos-iah.md" date_modified: "2026-10-18T05:10:47Z" --- # Colorado Springs to Houston (COS-IAH): nonstop flights and who flies them United Airlines flies nonstop between Colorado Springs (COS) and Houston (IAH), roughly 21 times a week. The timetable below shows the nonstop scheduled at 2h 17m to 2h 35m for the 809 miles. 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 COS to IAH on the interactive map [Get started free](https://2lnr.com/login) 21 Flights a week, 4-week average 2h 17m to 2h 35m Scheduled flight time 809 mi Nonstop distance Free To get started ## Colorado Springs to Houston flight schedule Scheduled nonstop departures for COS to IAH starting October 23, 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 Colorado Springs (COS) to Houston (IAH) | Date | Flight | Airline | Departs COS | Arrives IAH | Duration | Aircraft | | :--- | :--- | :--- | :--- | :--- | :--- | :--- | | Fri, Oct 23 | UA 5325 | United Airlines | 07:40 | 11:12 | 2h 32m | [Embraer E175](https://2lnr.com/seatmaps/ua/e175.md) | | Fri, Oct 23 | UA 3993 | United Airlines | 12:15 | 15:35 | 2h 20m | Embraer E175 | | Sat, Oct 24 | UA 5325 | United Airlines | 07:40 | 11:12 | 2h 32m | Embraer E175 | | Sat, Oct 24 | UA 3993 | United Airlines | 12:15 | 15:35 | 2h 20m | Embraer E175 | | Sun, Oct 25 | UA 5325 | United Airlines | 07:40 | 11:15 | 2h 35m | Embraer E175 | | Sun, Oct 25 | UA 4785 | United Airlines | 11:55 | 15:12 | 2h 17m | Embraer E175 | | Sun, Oct 25 | UA 3999 | United Airlines | 12:05 | 15:28 | 2h 23m | Embraer E175 | | Mon, Oct 26 | UA 5325 | United Airlines | 07:35 | 11:10 | 2h 35m | Embraer E175 | | Mon, Oct 26 | UA 4785 | United Airlines | 11:55 | 15:12 | 2h 17m | Embraer E175 | | Mon, Oct 26 | UA 3999 | United Airlines | 12:05 | 15:28 | 2h 23m | Embraer E175 | | Tue, Oct 27 | UA 5325 | United Airlines | 07:35 | 11:10 | 2h 35m | Embraer E175 | | Tue, Oct 27 | UA 4785 | United Airlines | 11:55 | 15:12 | 2h 17m | Embraer E175 | | Tue, Oct 27 | UA 3999 | United Airlines | 12:05 | 15:28 | 2h 23m | Embraer E175 | | Wed, Oct 28 | UA 5325 | United Airlines | 07:35 | 11:10 | 2h 35m | Embraer E175 | | Wed, Oct 28 | UA 4785 | United Airlines | 11:55 | 15:12 | 2h 17m | Embraer E175 | | Wed, Oct 28 | UA 3999 | United Airlines | 12:05 | 15:28 | 2h 23m | Embraer E175 | | Thu, Oct 29 | UA 5325 | United Airlines | 07:35 | 11:10 | 2h 35m | Embraer E175 | | Thu, Oct 29 | UA 4785 | United Airlines | 11:55 | 15:12 | 2h 17m | Embraer E175 | | Thu, Oct 29 | UA 3999 | United Airlines | 12:05 | 15:28 | 2h 23m | Embraer E175 | Showing all 19 scheduled COS to IAH departures across 7 days with service, starting October 23, 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 COS to IAH date on the interactive map ## Aircraft on the Colorado Springs to Houston nonstop United Airlines flies the [Embraer E175](https://2lnr.com/seatmaps/ua/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. ## The full COS to IAH nonstop schedule This page carries the full COS to IAH nonstop schedule, who operates each departure and how often it runs; the reverse direction is linked below. ### See the schedule Who operates each COS to IAH nonstop and how often it runs, from 2LNR's schedule data. ### Plan on the map See COS to IAH on the interactive route map, with schedules, connections, and route statistics. ## Airlines flying Colorado Springs to Houston nonstop Carriers operating COS to IAH nonstop in the current schedule. - [United Airlines (UA) route map](https://2lnr.com/routes/airlines/ua.md)\ [The aircraft UA flies](https://2lnr.com/seatmaps/ua.md) See COS to IAH on the interactive map → ## Frequently asked questions about COS to IAH **How long is the flight from Colorado Springs (COS) to Houston (IAH)?** Scheduled flight times from Colorado Springs (COS) to Houston (IAH) run from 2h 17m to 2h 35m across the departures in the schedule table on this page. The nonstop covers about 809 miles, and airlines adjust scheduled times by season, so confirm with the airline before you book. **Which airlines fly nonstop from COS to IAH?** United Airlines is currently the only airline flying COS to IAH nonstop. 2LNR doesn't show award or upgrade space for it on COS to IAH, so this page carries the schedule rather than a space claim. **How many flights a week are there from COS to IAH?** About 21 nonstop flights a week run between Colorado Springs (COS) and Houston (IAH) in the current schedule, operated by United Airlines. Frequency shifts by season, and the schedule table on this page shows what is scheduled next. **What time do flights from COS to IAH depart?** Scheduled COS to IAH nonstops in the next 7 days with service leave between 07:35 and 12:15, local time at Colorado Springs. The schedule table on this page lists every departure by date, with its arrival time and aircraft. **Which flights operate COS to IAH nonstop?** In the schedule table on this page, COS to IAH nonstops fly as UA 3993, UA 3999, UA 4785, and UA 5325 on United Airlines. The table lists each departure by date with its times and aircraft. **Does 2LNR show upgrade or award space on COS to IAH?** Not on this route: 2LNR doesn't show award or upgrade space for United Airlines on COS to IAH. The page carries the full COS to IAH nonstop schedule and who flies each departure, and the reverse direction is linked below. Flying the other way? See [IAH to COS nonstop flights](https://2lnr.com/routes/iah-cos.md). Award seats rather than schedules? See [award availability by airline](https://2lnr.com/awards.md). Looking beyond this route? See [every route from Colorado Springs (COS)](https://2lnr.com/routes/cos.md), or [every route from Houston (IAH)](https://2lnr.com/routes/iah.md). Nonstops to Houston (IAH) from other airports within 150 miles of Colorado Springs (COS): - [Denver (DEN) to Houston (IAH)](https://2lnr.com/routes/den-iah.md), 73 miles from COS - [Aspen (ASE) to Houston (IAH)](https://2lnr.com/routes/ase-iah.md), 120 miles from COS - [Gunnison (GUC) to Houston (IAH)](https://2lnr.com/routes/guc-iah.md), 122 miles from COS - [Eagle (EGE) to Houston (IAH)](https://2lnr.com/routes/ege-iah.md), 132 miles from COS Distances are great-circle between the airports, not driving distance. - [How to plan an upgrade by route](https://2lnr.com/guides/upgrade-strategy.md) ## See the full COS to IAH nonstop schedule Every scheduled departure on this route, with who flies it. 2LNR shows upgrade and award space by date on the carriers it tracks, the next 14 days free on every product and the full horizon on Pro. [Get started free](https://2lnr.com/login)