The flight time from Denver to Seattle is 2 hours, 51 minutes. See Data as Tables

Average Timeline

Leaves DEN Denver, CO 1 minute late.
15 minutes taxiing out
2 hours, 23 minutes in the air
9 minutes taxiing in
Arrives SEA Seattle, WA 5 minutes early.

Flight Reliability By Airline ?

Delta
84%
United
81%
Alaska
80%
Southwest
75%
Frontier
70%
Cancelled
Delayed*
Normal

Flight Summary

The flight time from Denver to Seattle is 2 hours, 51 minutes. The time spent in the air is 2 hours, 23 minutes.

The flight distance from Denver to Seattle is 1024 Miles.

Reverse Journey

Seattle to Denver
2 hours, 36 minutes

Flight Time By Airline ?

Southwest
2h 46m
Delta
2h 50m
United
2h 51m
Alaska
2h 54m
Frontier
2h 54m
Taxiing Out
Air Time
Taxiing In

Flight Time by Time of Day ?

12AM06AM12PM06PM1h2h
Taxiing Out
Air Time
Taxiing In

Flights By Time of Day ?
(Average)

12AM06AM12PM06PM0123

Flights Per Week

127

Distance

1024 Miles

Flights By Month ?

JFMAMJJASOND0200400600

Flights By Day of Week ?
(Average)

MonTueWedThuFriSatSun051015

Flights By Airline ?
(Per Week)

United
39
Southwest
30
Alaska
30
Delta
20
Frontier
7

Frequently Asked Questions

How far is Denver from Seattle by plane?

The distance from Denver to Seattle by plane is 1024 Miles. This is the air distance on the most direct route taken by the vast majority of flights.

How long is the flight from Denver to Seattle?

The flight time from Denver to Seattle is 2 hours, 51 minutes. The time spent in the air is 2 hours, 23 minutes. These numbers are averages. In reality, it varies by airline with Southwest being the fastest taking 2 hours, 46 minutes, and Alaska the slowest taking 2 hours, 54 minutes.

What airlines fly from Denver to Seattle?

Frontier, Delta, United, Alaska, and Southwest are the airlines with direct flights from Denver to Seattle.

Does Southwest fly from Denver to Seattle?

Yes! Southwest does fly from Denver (DEN) to Seattle (SEA). On average, they have 30 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 Denver 1 minute late
Taxi Out Time 15 minutes
In the Air 143 minutes
Taxiing In 9 minutes
Arrives Seattle 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 Denver to Seattle, Delta is 84% reliable, which means that Delta flights are on time 84% of the time, and cancelled or delayed the remaining time.

Airline Normal Flights Arrival Delayed* Flight Cancelled
Delta 84% 15% 1%
United 81% 18% 1%
Alaska 80% 19% 1%
Southwest 75% 24% 1%
Frontier 70% 30% 0%

Flight Time By Airline Flight Time By Airline Chart

Each airline takes a different amount of time to fly between Denver and Seattle, 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 13 143 8 166
Delta 14 143 10 170
United 15 143 10 171
Alaska 18 144 9 174
Frontier 15 145 12 174

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
1pm 0.39
7pm 1.48
3pm 1.52
5pm 0.62
5am 0.23
10am 0.49
6am 2.56
8pm 1.21
6pm 1.44
10pm 0.81
11am 1.91
4pm 0.81
7am 0.32
12pm 1.22
9pm 0.93
8am 1.39
9am 0.28
2pm 0.48

Flights By Month Flights By Month Chart

The quantity of flights from Denver to Seattle 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 473
February 423
March 495
April 498
May 577
June 628
July 653
August 650
September 612
October 589
November 519
December 530

Flights By Day Of Week Flights By Day of Week Chart

The quantity of flights from Denver to Seattle 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 18.85
Tuesday 17.98
Wednesday 18.12
Thursday 18.94
Friday 18.87
Saturday 16.85
Sunday 18.23

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
Southwest 1
Alaska 1
Delta 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)
1pm 15 141 9 167
7pm 17 144 9 174
3pm 16 144 8 171
5pm 18 142 9 171
5am 13 143 7 164
10am 17 147 10 175
6am 16 143 11 172
8pm 16 143 10 172
6pm 13 145 9 170
10pm 13 142 6 163
11am 16 143 9 171
4pm 16 144 9 171
7am 14 143 8 169
12pm 13 142 11 169
9pm 15 142 10 171
8am 14 144 10 170
9am 13 146 11 171
2pm 13 142 9 165
* Delayed more than 20 minutes.
All data above is a median or mean as appropriate.