The flight time from Washington to Houston is 3 hours, 12 minutes. See Data as Tables

Average Timeline

Leaves IAD Washington, DC 1 minute early.
15 minutes taxiing out
2 hours, 46 minutes in the air
7 minutes taxiing in
Arrives IAH Houston, TX 8 minutes early.

Flight Reliability By Airline ?


Flight Summary

The flight time from Washington to Houston is 3 hours, 12 minutes. The time spent in the air is 2 hours, 46 minutes.

The flight distance from Washington to Houston is 1190 Miles.

Reverse Journey

Houston to Washington
2 hours, 53 minutes

Flight Time By Airline ?

3h 12m
Taxiing Out
Air Time
Taxiing In

Flight Time by Time of Day ?

Taxiing Out
Air Time
Taxiing In

Flights By Time of Day ?


Flights Per Week



1190 Miles

Flights By Month ?


Flights By Day of Week ?


Flights By Airline ?
(Per Week)


Frequently Asked Questions

How far is Washington from Houston by plane?

The distance from Washington to Houston by plane is 1190 Miles. This is the air distance on the most direct route taken by the vast majority of flights.

How long is the flight from Washington to Houston?

The flight time from Washington to Houston is 3 hours, 12 minutes. The time spent in the air is 2 hours, 46 minutes. These numbers are averages.

What airlines fly from Washington to Houston?

United is the only airline with direct flights from Washington to Houston.

Does Southwest fly from Washington to Houston?

Southwest does not fly from Washington (IAD) to Houston (IAH). Keep in mind that Southwest may fly to other nearby airports, as they will often fly into smaller airpors instead of larger ones. This is because the costs are often lower to fly into smaller airports, and they pass the savings on to you.

Tables and Explanations

Data Source

Our information is computed from the latest available data from the US Department of Transportation.

Average Timeline Timeline Chart

The average timeline contains the median time a flight spends in 3 stages. The first of these three stages is taxiing out which includes the time from the flight leaving the gate to taking off. The second stage is in the air, which includes the time spent from the flight leaving the ground to touching back down at the end of it's journey. The last stage is taxiing in, which is from when the flight touches down to the flight arriving at it's gate.

The average timeline also estimates on average of when the flight will leave and arrive relative to it's stated departure time.

Leaves Washington 1 minute early
Taxi Out Time 15 minutes
In the Air 166 minutes
Taxiing In 7 minutes
Arrives Houston 8 minutes early

Flight Reliability Reliability Chart

The reliability of an airline measures how often the airline's flights on this route are cancelled or delayed more than 20 minutes. For example, from Washington to Houston, United is 85% reliable, which means that United flights are on time 85% of the time, and cancelled or delayed the remaining time.

Airline Normal Flights Arrival Delayed* Flight Cancelled
United 85% 13% 2%

Flight Time By Airline Flight Time By Airline Chart

Each airline takes a different amount of time to fly between Washington and Houston, this is due to different operational factors on the ground, as well as scheduling of planes. Each airline's flight time is split into three stages which are described above in the "Average Timeline" section. There are also miscellaneous operational issues which are included in the below total but are not accounted for in one of the three stages.

Airline Taxiing Out
In the Air
Taxiing In
United 15 166 7 192

Flights By Time of Day Flight Time By Day Chart

This one is pretty self explanatory, it represents the number of flights that leave the gate in a given hour of the day. The tricky thing here is that this is normally not a whole number since it is an average over 52 weeks. Partial numbers may indicate that a flight may be seasonal or may take off at different times due to different operational factors.

Time Count
10am 0.12
8am 0.39
6pm 0.39
6am 0.95
12pm 0.17
2pm 0.26
1pm 0.07
4pm 0.26
11am 0.66
10pm 0.44
5pm 0.6
3pm 0.36
9am 0.01

Flights By Month Flights By Month Chart

The quantity of flights from Washington to Houston that take off in a given month of the year. This number changes because some flights are seasonal, and almost all flights have uneven demand througout the year.

Month Count
January 126
February 112
March 124
April 120
May 124
June 120
July 215
August 214
September 180
October 154
November 122
December 137

Flights By Day Of Week Flights By Day of Week Chart

The quantity of flights from Washington to Houston that take off on a given day of the week. Some routes only have enough demand to sustain a few trips a week, while others have many flights a day. This number is also an average across the year, and hence may not be a whole number.

Day Count
Monday 4.92
Tuesday 4.81
Wednesday 4.81
Thursday 4.88
Friday 4.83
Saturday 4.62
Sunday 4.75

Flight per Airline (per Week) Flights By Airline Chart

How many times an airline flies this route in a week. Different factors play into how often a carrier chooses to fly a given route including it's need to connect disparate routes, and demand.

Airline Flights per Week
United 1

Flight Time By Time of Day Flight Time by Time of Day Chart

The total flight time varies by each hour of the day due to factors such as airport traffic. More flights leaving an airport may cause higher taxi in or taxi out times. See the description of the average timeline above for a deeper discussion of each of these times.

Time Taxi Out
In the Air
Taxi In
10am 15 172 7 197
8am 14 164 8 188
6pm 18 159 6 186
6am 12 167 7 187
12pm 14 171 7 195
2pm 14 162 9 186
1pm 14 166 7 188
4pm 16 167 11 198
11am 17 166 7 194
10pm 15 158 6 181
5pm 17 170 8 199
3pm 14 178 9 201
9am 12 157 9 179
* Delayed more than 20 minutes.
All data above is a median or mean as appropriate.