The flight time from Seattle to Dallas is 3 hours, 50 minutes. See Data as Tables

Average Timeline

Leaves SEA Seattle, WA 1 minute early.
16 minutes taxiing out
3 hours, 27 minutes in the air
4 minutes taxiing in
Arrives DAL Dallas, TX 9 minutes early.

Flight Reliability By Airline ?


Flight Summary

The flight time from Seattle to Dallas is 3 hours, 50 minutes. The time spent in the air is 3 hours, 27 minutes.

The flight distance from Seattle to Dallas is 1670 Miles.

Reverse Journey

Dallas to Seattle
4 hours, 22 minutes

Flight Time By Airline ?

3h 45m
3h 53m
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



1670 Miles

Flights By Month ?


Flights By Day of Week ?


Flights By Airline ?
(Per Week)


Frequently Asked Questions

How far is Seattle from Dallas by plane?

The distance from Seattle to Dallas by plane is 1670 Miles. This is the air distance on the most direct route taken by the vast majority of flights.

How long is the flight from Seattle to Dallas?

The flight time from Seattle to Dallas is 3 hours, 50 minutes. The time spent in the air is 3 hours, 27 minutes. These numbers are averages. In reality, it varies by airline with Southwest being the fastest taking 3 hours, 45 minutes, and Alaska the slowest taking 3 hours, 53 minutes.

What airlines fly from Seattle to Dallas?

Alaska and Southwest are the airlines with direct flights from Seattle to Dallas.

Does Southwest fly from Seattle to Dallas?

Yes! Southwest does fly from Seattle (SEA) to Dallas (DAL). On average, they have 6 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 Seattle 1 minute early
Taxi Out Time 16 minutes
In the Air 207 minutes
Taxiing In 4 minutes
Arrives Dallas 9 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 Seattle to Dallas, 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
Alaska 88% 11% 1%
Southwest 82% 17% 1%

Flight Time By Airline Flight Time By Airline Chart

Each airline takes a different amount of time to fly between Seattle and Dallas, 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
Southwest 17 202 4 225
Alaska 16 208 4 233

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
2pm 0.55
6am 0.1
4pm 0.19
5pm 0.24
11am 0.07
9am 0.28
3pm 0.37
7am 0.9
8am 0.2
10am 0.03
12pm 0.24
1pm 0.26

Flights By Month Flights By Month Chart

The quantity of flights from Seattle to Dallas 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 92
February 83
March 92
April 89
May 92
June 88
July 93
August 96
September 120
October 122
November 141
December 153

Flights By Day Of Week Flights By Day of Week Chart

The quantity of flights from Seattle to Dallas 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 3.46
Tuesday 3.58
Wednesday 3.48
Thursday 3.42
Friday 3.44
Saturday 3.42
Sunday 3.44

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
Alaska 0
Southwest 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
In the Air
Taxi In
2pm 14 207 4 227
6am 16 215 5 236
4pm 13 206 6 232
5pm 14 203 10 232
11am 13 204 3 225
9am 18 208 4 237
3pm 19 212 4 238
7am 15 207 4 228
8am 17 209 5 234
10am 18 203 3 222
12pm 24 206 4 236
1pm 17 200 4 226
* Delayed more than 20 minutes.
All data above is a median or mean as appropriate.