IAH → DCAHouston to Washington

live

Direct flights from Houston (IAH) to Washington (DCA): 14 nonstop departures observed each week across 2 airlines. 82% of the last 55 operated flights arrived within 15 minutes of schedule. The median arrival is 14 minutes early. 2 of the 55 tracked flights were cancelled. The nonstop covers 1,942 km, an estimated 2 hours 59 minutes in the air. Measured by Pro Flight Search from live flight boards at Houston and Washington. Updated 17 August 2026 at 06:40 UTC.

IAH Houston busy · +28
DCA Washington disrupted · +121
1,942 km · ~2h 59m est.
dep bank 07:00–19:5014x weekly
Runs reliable · 2 airlines · 14x weekly · nonstop
82% on time

of the last 55 operated IAH → DCA flights arrived within 15 minutes

Median arrival delay is −14 min. 2 of 55 tracked legs cancelled in the sample. Will a delayed flight be cancelled? →

Search live fares for this route →
Median arrival−14 minacross the last 55 operated legs
Flight time~2h 59mestimated from route distance
Weekly departures14x2 direct airlines on the leg
Cancelled3.6%recent route rate · 2 of 55

Current nonstop fares

IAH → DCA · one way · economy · 1 adult

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TodayChecking…Direct airline fares
TomorrowChecking…Direct airline fares
In one weekChecking…Direct airline fares

The week

scheduled departures · origin local time
06121824
Mon
Tue
Wed
Thu
Fri
Sat
Sun
American AirlinesUnited Airlines

Each mark is a scheduled departure at its origin-local time, observed operating in the last 7 days. Today is highlighted.

Who flies it

observed on the boards · 7 days
American AirlinesAA73% on time

Flights AA5081 07:00 daily · AA5055 11:14 Mo Tu We Th Fr · AA5026 16:50 Tu We Th Fr Su

United AirlinesUA85% on time

Flights UA512 07:45 daily · UA2047 07:46 daily · UA6170 09:43 Mo Tu We Th Fr Su · UA2670 09:47 Mo Tu We Th Fr Su

History

operated legs · board outcomes
08-16AA5026cancelledCNX
08-16AA5081dep +0 → arr−5
08-16UA1350dep +101 → arr+77
08-16UA1627dep +161 → arr+123
08-16UA2224dep +99 → arr+77
08-16UA512dep +14 → arr−16
08-16UA6170dep +0 → arr−5
08-16UA625dep +77 → arr+52
08-16UA654dep +23 → arr−21
08-15AA5081dep −8 → arr−19
08-15UA1350dep +86 → arr+46
08-15UA1627dep +16 → arr−22
08-15UA2224dep +19 → arr−21
08-15UA512dep +14 → arr−16
08-15UA654dep +6 → arr−31
08-14AA5026dep +10 → arr+15
08-14AA5055dep +65 → arr−42
08-14AA5081dep −7 → arr−8
08-14UA1350dep +12 → arr−17
08-14UA1627dep +25 → arr−3
08-14UA2224dep +53 → arr+12
08-14UA512dep +10 → arr−15
08-14UA6170dep +22 → arr−3
08-14UA625dep +12 → arr−17
08-14UA654dep +7 → arr−19
08-13AA5026dep +356 → arr+316
08-13AA5055dep −5 → arr−8
08-13AA5081dep −4 → arr−13
08-13UA1350dep +7 → arr−29
08-13UA1627dep +21 → arr−13
08-13UA2224dep −1 → arr−38
08-13UA512dep +15 → arr−18
08-13UA6170dep +13 → arr−18
08-13UA625dep +8 → arr−22
08-13UA654dep +14 → arr−6
08-12AA5026dep −11 → arr−26
08-12AA5055dep −8 → arr−19
08-12AA5081cancelledCNX
08-12UA1350dep +7 → arr−17
08-12UA1627dep +31 → arr−1

Actual board outcomes rather than schedules, paired departure and arrival per flight and day.

Full board history, day by day →

Airports right now

live boards
IAHHouston +28 min busy 🌤 clear · S 5 kt Full IAH delay board →
DCAWashington +121 min disrupted 🌤 mostly cloudy · SSW 7 kt Full DCA delay board →

Weather lens

Current conditions put the pressure at DCA: 42% odds of a 15+ minute delay and around +15 min expected when it bites, measured from this route's own weather-matched delay history. See live delays → · Weather risk by airport →

How the Houston to Washington route actually runs

Pro Flight Search tracks every published board update for nonstop IAH to DCA flights: schedules, estimates, gate pushes and actual departures. The verdict above comes from operated flights, so it reflects what this route does rather than what the timetable promises. Fares link straight to the operating airline with no markups.

Planning around a delay? Live airport delays · Weather delay risk map · Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure

Cite this data

Journalists, bloggers, and researchers may cite this page with attribution and a link to Pro Flight Search.

Suggested citation

Pro Flight Search — Houston (IAH) to Washington (DCA) route reliability, measured from operated flights on official airport boards.

Canonical URL
https://proflightsearch.com/search-flights/IAH-DCA
How we measure this →

IAH to DCA questions

Is IAH–DCA running on time right now?

High disruption likely. The arrival side at DCA is the weaker end, route health score 31/100. The airports section above carries the live status and delay window at both ends.

Morning or evening flight on IAH–DCA?

Operators schedule morning departures around 07:00 and evening departures around 18:05 from IAH. Earlier flights typically land before destination-airport delays accumulate later in the day; check the DCA delay card to confirm conditions when you'd arrive.

How long is the flight from IAH to DCA?

Great-circle distance is 1,942 km. With typical jet cruise speed plus taxi, climb and descent, expect roughly 167–196 min gate-to-gate on this route.

How often does IAH–DCA fly?

2 carriers operate this route, around 83 flights a week between them. Compare carrier days and times in the airline list above.