St. Louis to Houston (STL-IAH): nonstop flights and who flies them

United Airlines flies nonstop between St. Louis (STL) and Houston (IAH), roughly 43 times a week. The timetable below shows the nonstop scheduled at 2h 12m to 2h 31m for the 668 miles.

Schedule last confirmed . Departure times come from 2LNR's schedule data; confirm with the airline before you book.

Updated .

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43
Flights a week, 4-week average
2h 12m to 2h 31m
Scheduled flight time
668 mi
Nonstop distance
Free
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St. Louis to Houston flight schedule

Scheduled nonstop departures for STL 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.

Schedule data dated .

Scheduled nonstop departures from St. Louis (STL) to Houston (IAH)
Date Flight Airline Departs STL Arrives IAH Duration Aircraft
UA 1371United Airlines06:1508:272h 12mBoeing 737 MAX 8
UA 4595United Airlines08:3510:522h 17mCR5
UA 6213United Airlines11:1013:252h 15mEmbraer E175
UA 652United Airlines15:1217:252h 13mBoeing 737-800
UA 1371United Airlines06:1508:272h 12mBoeing 737 MAX 8
UA 4595United Airlines08:3510:522h 17mCR5
UA 6213United Airlines11:1013:252h 15mEmbraer E175
UA 652United Airlines15:1217:252h 13mBoeing 737-800
UA 1371United Airlines06:1508:272h 12mBoeing 737 MAX 8
UA 4524United Airlines08:3511:012h 26mCR5
UA 4028United Airlines08:5011:082h 18mEmbraer E175
UA 6213United Airlines11:1013:252h 15mEmbraer E175
UA 4045United Airlines14:5617:252h 29mEmbraer E175
UA 1925United Airlines16:1718:352h 18mAirbus A319
UA 6225United Airlines17:5520:252h 30mEmbraer E175
UA 1371United Airlines06:1508:272h 12mBoeing 737 MAX 8
UA 4524United Airlines08:3511:012h 26mCR5
UA 4028United Airlines08:5011:082h 18mEmbraer E175
UA 6213United Airlines11:1013:252h 15mEmbraer E175
UA 5727United Airlines14:5517:192h 24mEmbraer E175
UA 4075United Airlines14:5617:252h 29mEmbraer E175
UA 4045United Airlines17:5520:252h 30mEmbraer E175
UA 1371United Airlines06:1508:352h 20mAirbus A319
UA 4524United Airlines08:3511:012h 26mCR5
UA 4028United Airlines08:5011:082h 18mEmbraer E175
UA 6213United Airlines11:1013:252h 15mEmbraer E175
UA 4075United Airlines14:5517:192h 24mEmbraer E175
UA 4045United Airlines14:5617:252h 29mEmbraer E175
UA 1371United Airlines06:1508:352h 20mAirbus A319
UA 4524United Airlines08:3011:012h 31mCR5
UA 4028United Airlines08:5011:082h 18mEmbraer E175
UA 6213United Airlines11:1013:252h 15mEmbraer E175
UA 4075United Airlines14:5517:192h 24mEmbraer E175
UA 4045United Airlines17:5520:252h 30mEmbraer E175
UA 1371United Airlines06:1508:352h 20mAirbus A319
UA 4524United Airlines08:3511:012h 26mCR5
UA 4028United Airlines08:5011:082h 18mEmbraer E175
UA 6213United Airlines11:1013:252h 15mEmbraer E175
UA 4075United Airlines14:5517:192h 24mEmbraer E175
UA 4045United Airlines17:5520:252h 30mEmbraer E175

Showing all 40 scheduled STL 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 STL to IAH date on the interactive map

Aircraft on the St. Louis to Houston nonstop

United Airlines flies the departures in the schedule table on this page with the Embraer E175, the Bombardier CRJ, the Boeing 737 MAX 8, the Airbus A319, and the Boeing 737-800. Each linked aircraft page shows where that airline schedules it. Airlines can swap aircraft up to departure.

The full STL to IAH nonstop schedule

This page carries the full STL 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 STL to IAH nonstop and how often it runs, from 2LNR's schedule data.

Plan on the map

See STL to IAH on the interactive route map, with schedules, connections, and route statistics.

Airlines flying St. Louis to Houston nonstop

Carriers operating STL to IAH nonstop in the current schedule.

See STL to IAH on the interactive map →

Frequently asked questions about STL to IAH

How long is the flight from St. Louis (STL) to Houston (IAH)?
Scheduled flight times from St. Louis (STL) to Houston (IAH) run from 2h 12m to 2h 31m across the departures in the schedule table on this page. The nonstop covers about 668 miles, and airlines adjust scheduled times by season, so confirm with the airline before you book.
Which airlines fly nonstop from STL to IAH?
United Airlines is currently the only airline flying STL to IAH nonstop. 2LNR doesn't show award or upgrade space for it on STL to IAH, so this page carries the schedule rather than a space claim.
How many flights a week are there from STL to IAH?
About 43 nonstop flights a week run between St. Louis (STL) 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 STL to IAH depart?
Scheduled STL to IAH nonstops in the next 7 days with service leave between 06:15 and 17:55, local time at St. Louis. The schedule table on this page lists every departure by date, with its arrival time and aircraft.
Which flights operate STL to IAH nonstop?
The schedule table on this page lists 11 flight numbers for STL to IAH nonstops, including UA 652, UA 1371, UA 4028, UA 4045, UA 4075, UA 4524, UA 4595, and UA 6213 on United Airlines. The table lists each departure by date with its times and aircraft.
Does 2LNR show upgrade or award space on STL to IAH?
Not on this route: 2LNR doesn't show award or upgrade space for United Airlines on STL to IAH. The page carries the full STL to IAH nonstop schedule and who flies each departure, and the reverse direction is linked below.

See the full STL 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.

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