The flight time from Seattle to Chicago is 3 hours, 51 minutes. See Data as Tables

Average Timeline

Leaves SEA Seattle, WA 3 minutes early.
17 minutes taxiing out
3 hours, 22 minutes in the air
10 minutes taxiing in
Arrives ORD Chicago, IL 9 minutes early.

Flight Reliability By Airline ?


Reverse Journey

Chicago to Seattle
4 hours, 27 minutes

Flight Time By Airline ?

3h 47m
3h 48m
3h 48m
3h 52m
3h 55m
3h 55m
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



1721 Miles

Flights By Month ?


Flights By Day of Week ?


Flights By Airline ?
(Per Week)


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 3 minutes early
Taxi Out Time 17 minutes
In the Air 202 minutes
Taxiing In 10 minutes
Arrives Chicago 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 10 minutes. For example, from Seattle to Chicago, Delta is 90% reliable, which means that Delta flights are on time 90% of the time, and cancelled or delayed the remaining time.

Airline Normal Flights Arrival Delayed* Flight Cancelled
Delta 90% 10% 0%
United 90% 10% 0%
American 88% 11% 1%
Alaska 88% 12% 0%
Southwest 86% 13% 1%
Spirit 76% 24% 0%

Flight Time By Airline Flight Time By Airline Chart

Each airline takes a different amount of time to fly between Seattle and Chicago, 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
Delta 16 200 10 227
United 17 200 10 228
Spirit 11 206 9 228
Southwest 17 208 5 232
American 17 202 14 235
Alaska 18 202 12 235

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
0am 1.57
5am 0.41
6am 1.67
7am 1.7
8am 0.19
9am 0.75
10am 1.97
11am 1.18
12pm 0.97
1pm 0.66
2pm 1.6
3pm 0.99
5pm 1.82
6pm 0.47
11pm 1.64

Flights By Month Flights By Month Chart

The quantity of flights from Seattle to Chicago 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 455
February 350
March 444
April 526
May 586
June 595
July 680
August 674
September 583
October 558
November 495
December 516

Flights By Day Of Week Flights By Day of Week Chart

The quantity of flights from Seattle to Chicago 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 18.4
Tuesday 18.1
Wednesday 18.1
Thursday 18.7
Friday 18.6
Saturday 15.7
Sunday 16.6

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 33
American 28
Alaska 27
Southwest 20
Delta 17
Spirit 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
0am 12 202 11 227
5am 14 209 5 228
6am 16 203 9 229
7am 17 203 14 236
8am 24 206 6 237
9am 19 204 13 238
10am 22 201 13 238
11am 16 204 11 231
12pm 25 205 15 246
1pm 21 202 14 239
2pm 17 202 14 236
3pm 16 204 6 228
5pm 16 202 7 227
6pm 18 197 7 223
11pm 14 199 6 221
* Delayed more than 10 minutes.
All data above is a median or mean as appropriate.