Washington to Houston (IAD-IAH): nonstop flights and who flies them

United Airlines flies nonstop between Washington (IAD) and Houston (IAH), roughly 46 times a week. The timetable below shows the nonstop scheduled at 3h 20m to 3h 38m for the 1,189 miles.

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

Updated .

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46
Flights a week, 4-week average
3h 20m to 3h 38m
Scheduled flight time
1,189 mi
Nonstop distance
Free
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Washington to Houston flight schedule

Scheduled nonstop departures for IAD to IAH starting October 30, 2026, last checked against our schedule feed on October 25, 2026. Airlines retime and cancel flights, so confirm with the airline before you book.

Schedule data dated .

Scheduled nonstop departures from Washington (IAD) to Houston (IAH)
Date Flight Airline Departs IAD Arrives IAH Duration Aircraft
UA 2655United Airlines06:0008:373h 37mBoeing 737 MAX 9
UA 1524United Airlines08:3411:103h 36mBoeing 767-300
UA 1535United Airlines12:5215:133h 21mBoeing 737-900
UA 1381United Airlines14:3817:153h 37mBoeing 737-800
UA 1317United Airlines17:5420:323h 38mAirbus A319
UA 694United Airlines22:2500:583h 33mBoeing 737-800
UA 2346United Airlines06:0008:363h 36mBoeing 737 MAX 8
UA 2655United Airlines06:0008:373h 37mBoeing 737 MAX 8
UA 1524United Airlines08:3411:103h 36mBoeing 767-300
UA 1535United Airlines12:5715:173h 20mBoeing 737-900
UA 1381United Airlines14:3817:153h 37mBoeing 737-800
UA 1317United Airlines17:5420:303h 36mBoeing 737-900
UA 1079United Airlines22:2500:583h 33mBoeing 737-800
UA 2655United Airlines06:0008:373h 37mBoeing 737 MAX 8
UA 1524United Airlines08:3411:103h 36mBoeing 767-300
UA 1535United Airlines12:5215:133h 21mBoeing 737-900
UA 1381United Airlines14:3817:153h 37mBoeing 737-800
UA 1317United Airlines17:5420:303h 36mBoeing 737-800
UA 2730United Airlines17:5420:303h 36mBoeing 737-900
UA 2720United Airlines22:2500:583h 33mBoeing 737-800
UA 2655United Airlines06:0008:373h 37mBoeing 737 MAX 8
UA 1524United Airlines08:3411:103h 36mBoeing 767-300
UA 1535United Airlines12:5215:133h 21mBoeing 737-900
UA 1381United Airlines14:3817:153h 37mBoeing 737-800
UA 1317United Airlines17:5420:303h 36mBoeing 737-900
UA 2720United Airlines22:2500:583h 33mBoeing 737-800
UA 2655United Airlines06:0008:373h 37mBoeing 737 MAX 8
UA 1524United Airlines08:3411:103h 36mBoeing 767-300
UA 1535United Airlines12:5215:133h 21mBoeing 737-900
UA 1381United Airlines14:3817:153h 37mBoeing 737-800
UA 1317United Airlines17:5420:303h 36mBoeing 737-900
UA 2730United Airlines17:5420:303h 36mBoeing 737-900
UA 2720United Airlines22:2500:583h 33mBoeing 737-800
UA 2655United Airlines06:0008:373h 37mBoeing 737-800
UA 1524United Airlines08:3411:103h 36mBoeing 767-300
UA 1535United Airlines12:5215:133h 21mBoeing 737-900
UA 1381United Airlines14:3817:153h 37mBoeing 737-800
UA 1317United Airlines17:5420:303h 36mBoeing 737-800
UA 2730United Airlines17:5420:303h 36mBoeing 737-900
UA 2720United Airlines22:2500:583h 33mBoeing 737-800

Showing the first 40 of 47 scheduled IAD to IAH departures across 7 days with service, starting October 30, 2026. Every remaining date is 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 IAD to IAH date on the interactive map

Aircraft on the Washington to Houston nonstop

United Airlines flies the departures in the schedule table on this page with the Boeing 737-800, the Boeing 737-900, the Boeing 767-300, the Boeing 737 MAX 8, the Boeing 737 MAX 9, and the Airbus A319. Each linked aircraft page shows where that airline schedules it. Airlines can swap aircraft up to departure.

The full IAD to IAH nonstop schedule

The timetable above is the full IAD to IAH nonstop schedule, with who operates each departure; the reverse direction is linked below.

See the schedule

Who operates each IAD to IAH nonstop and how often it runs, from 2LNR's schedule data.

Plan on the map

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

Airlines flying Washington to Houston nonstop

Carriers operating IAD to IAH nonstop in the current schedule.

See IAD to IAH on the interactive map →

Frequently asked questions about IAD to IAH

How long is the flight from Washington (IAD) to Houston (IAH)?
Scheduled flight times from Washington (IAD) to Houston (IAH) run from 3h 20m to 3h 38m across the departures in the schedule table on this page. The nonstop covers about 1,189 miles, and airlines adjust scheduled times by season, so confirm with the airline before you book.
Which airlines fly nonstop from IAD to IAH?
United Airlines is currently the only airline flying IAD to IAH nonstop. 2LNR doesn't show award or upgrade space for it on IAD to IAH, so this page carries the schedule rather than a space claim.
How many flights a week are there from IAD to IAH?
About 46 nonstop flights a week run between Washington (IAD) 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 IAD to IAH depart?
Scheduled IAD to IAH nonstops in the next 7 days with service leave between 06:00 and 22:25, local time at Washington. The schedule table on this page lists every departure by date, with its arrival time and aircraft.
Which flights operate IAD to IAH nonstop?
The schedule table on this page lists 10 flight numbers for IAD to IAH nonstops, including UA 694, UA 1317, UA 1381, UA 1524, UA 1535, UA 2655, UA 2720, and UA 2730 on United Airlines. The table lists each departure by date with its times and aircraft.
Does 2LNR show upgrade or award space on IAD to IAH?
Not on this route: 2LNR doesn't show award or upgrade space for United Airlines on IAD to IAH. The page carries the full IAD to IAH nonstop schedule and who flies each departure, and the reverse direction is linked below.

See the full IAD 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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