The flight time from St. Louis to Washington is 1 hour, 53 minutes. See Data as Tables

Average Timeline

Leaves STL St. Louis, MO 1 minute early.
11 minutes taxiing out
1 hour, 34 minutes in the air
5 minutes taxiing in
Arrives DCA Washington, DC 4 minutes early.

Flight Reliability By Airline ?

American
86%
Southwest
82%
Cancelled
Delayed*
Normal

Flight Summary

The flight time from St. Louis to Washington is 1 hour, 53 minutes. The time spent in the air is 1 hour, 34 minutes.

The flight distance from St. Louis to Washington is 719 Miles.

Reverse Journey

Washington to St. Louis
2 hours, 14 minutes

Flight Time By Airline ?

Southwest
1h 49m
American
1h 59m
Taxiing Out
Air Time
Taxiing In

Flight Time by Time of Day ?

12AM06AM12PM06PM 30m1h1h 30m2h
Taxiing Out
Air Time
Taxiing In

Flights By Time of Day ?
(Average)

12AM06AM12PM06PM0.00.51.01.52.0

Flights Per Week

45

Distance

719 Miles

Flights By Month ?

JFMAMJJASOND050100150200

Flights By Day of Week ?
(Average)

MonTueWedThuFriSatSun0246

Flights By Airline ?
(Per Week)

Southwest
26
American
18

Frequently Asked Questions

How far is St. Louis from Washington by plane?

The distance from St. Louis to Washington by plane is 719 Miles. This is the air distance on the most direct route taken by the vast majority of flights.

How long is the flight from St. Louis to Washington?

The flight time from St. Louis to Washington is 1 hour, 53 minutes. The time spent in the air is 1 hour, 34 minutes. These numbers are averages. In reality, it varies by airline with Southwest being the fastest taking 1 hour, 49 minutes, and American the slowest taking 1 hour, 59 minutes.

What airlines fly from St. Louis to Washington?

Southwest and American are the airlines with direct flights from St. Louis to Washington.

Does Southwest fly from St. Louis to Washington?

Yes! Southwest does fly from St. Louis (STL) to Washington (DCA). On average, they have 26 flights per week on this route. This may vary seasonally, please check the chart above for more details.

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 St. Louis 1 minute early
Taxi Out Time 11 minutes
In the Air 94 minutes
Taxiing In 5 minutes
Arrives Washington 4 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 St. Louis to Washington, Southwest is 82% reliable, which means that Southwest flights are on time 82% of the time, and cancelled or delayed the remaining time.

Airline Normal Flights Arrival Delayed* Flight Cancelled
American 86% 13% 1%
Southwest 82% 18% 0%

Flight Time By Airline Flight Time By Airline Chart

Each airline takes a different amount of time to fly between St. Louis and Washington, 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
(minutes)
In the Air
(minutes)
Taxiing In
(minutes)
Total
(minutes)
Southwest 10 92 4 109
American 13 98 5 119

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
3pm 0.74
11am 0.01
1pm 0.9
5pm 0.29
6am 0.85
7am 0.03
10am 0.11
5am 0.02
2pm 0.02
9am 0.64
8pm 0.3
8am 1.13
9pm 0
4pm 0.4
7pm 0.55
6pm 0.41

Flights By Month Flights By Month Chart

The quantity of flights from St. Louis to Washington 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 202
February 184
March 209
April 191
May 205
June 186
July 188
August 201
September 190
October 204
November 190
December 198

Flights By Day Of Week Flights By Day of Week Chart

The quantity of flights from St. Louis to Washington 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 6.94
Tuesday 6.9
Wednesday 6.98
Thursday 6.9
Friday 6.94
Saturday 4.65
Sunday 5.83

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
Southwest 1
American 0

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
(minutes)
In the Air
(minutes)
Taxi In
(minutes)
Total
(minutes)
3pm 10 94 4 110
11am 15 94 12 122
1pm 10 95 4 111
5pm 12 93 5 112
6am 13 102 6 125
7am 16 93 8 133
10am 13 95 6 117
5am 16 93 5 116
2pm 14 92 5 110
9am 12 96 5 115
8pm 10 87 5 102
8am 11 93 4 109
9pm 8 86 8 102
4pm 11 97 5 115
7pm 10 93 5 111
6pm 11 95 5 114
* Delayed more than 20 minutes.
All data above is a median or mean as appropriate.