The flight time from St. Louis to Philadelphia is 2 hours, 4 minutes. See Data as Tables

Average Timeline

Leaves STL St. Louis, MO 2 minutes early.
11 minutes taxiing out
1 hour, 45 minutes in the air
6 minutes taxiing in
Arrives PHL Philadelphia, PA 5 minutes early.

Flight Reliability By Airline ?

Southwest
85%
American
83%
Frontier
43%
Cancelled
Delayed*
Normal

Flight Summary

The flight time from St. Louis to Philadelphia is 2 hours, 4 minutes. The time spent in the air is 1 hour, 45 minutes.

The flight distance from St. Louis to Philadelphia is 814 Miles.

Reverse Journey

Philadelphia to St. Louis
2 hours, 23 minutes

Flight Time By Airline ?

Southwest
2h
American
2h 9m
Frontier
2h 12m
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)

12AM06AM12PM06PM0.00.20.40.60.81.0

Flights Per Week

31

Distance

814 Miles

Flights By Month ?

JFMAMJJASOND050100150200

Flights By Day of Week ?
(Average)

MonTueWedThuFriSatSun012345

Flights By Airline ?
(Per Week)

American
16
Southwest
14
Frontier
0

Frequently Asked Questions

How far is St. Louis from Philadelphia by plane?

The distance from St. Louis to Philadelphia by plane is 814 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 Philadelphia?

The flight time from St. Louis to Philadelphia is 2 hours, 4 minutes. The time spent in the air is 1 hour, 45 minutes. These numbers are averages. In reality, it varies by airline with Southwest being the fastest taking 2 hours, and Frontier the slowest taking 2 hours, 12 minutes.

What airlines fly from St. Louis to Philadelphia?

Frontier, Southwest, and American are the airlines with direct flights from St. Louis to Philadelphia.

Does Southwest fly from St. Louis to Philadelphia?

Yes! Southwest does fly from St. Louis (STL) to Philadelphia (PHL). On average, they have 14 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 2 minutes early
Taxi Out Time 11 minutes
In the Air 105 minutes
Taxiing In 6 minutes
Arrives Philadelphia 5 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 Philadelphia, Southwest is 85% reliable, which means that Southwest flights are on time 85% of the time, and cancelled or delayed the remaining time.

Airline Normal Flights Arrival Delayed* Flight Cancelled
Southwest 85% 15% 0%
American 83% 15% 2%
Frontier 43% 38% 19%

Flight Time By Airline Flight Time By Airline Chart

Each airline takes a different amount of time to fly between St. Louis and Philadelphia, 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 11 103 5 120
American 12 107 7 129
Frontier 14 103 12 132

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
11am 0.13
6pm 0.13
12pm 0.34
3pm 0.07
7pm 0.26
6am 0.94
9am 0.4
4pm 0.33
5pm 0.01
7am 0.15
8am 0.64
2pm 0.21
5am 0
8pm 0.25
9pm 0.13
1pm 0.34
10pm 0.02

Flights By Month Flights By Month Chart

The quantity of flights from St. Louis to Philadelphia 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 72
February 62
March 80
April 86
May 120
June 185
July 196
August 200
September 172
October 187
November 129
December 133

Flights By Day Of Week Flights By Day of Week Chart

The quantity of flights from St. Louis to Philadelphia 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 4.96
Tuesday 4.27
Wednesday 4.38
Thursday 4.52
Friday 4.9
Saturday 3.6
Sunday 4.56

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
American 0
Southwest 0
Frontier 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)
11am 11 104 5 121
6pm 9 102 5 117
12pm 11 106 7 127
3pm 11 105 7 123
7pm 11 103 5 120
6am 12 107 6 128
9am 12 107 7 127
4pm 12 109 10 135
5pm 17 100 9 130
7am 12 105 5 121
8am 11 103 5 121
2pm 12 105 6 127
5am 10 104 6 120
8pm 10 102 6 119
9pm 11 102 7 121
1pm 11 106 6 125
10pm 13 102 12 128
* Delayed more than 20 minutes.
All data above is a median or mean as appropriate.