The flight time from Ontario to Seattle is 2 hours, 39 minutes. See Data as Tables

Average Timeline

Leaves ONT Ontario, CA 5 minutes early.
14 minutes taxiing out
2 hours, 13 minutes in the air
10 minutes taxiing in
Arrives SEA Seattle, WA 9 minutes early.

Flight Reliability By Airline ?

Alaska
89%
Delta
88%
Cancelled
Delayed*
Normal

Flight Summary

The flight time from Ontario to Seattle is 2 hours, 39 minutes. The time spent in the air is 2 hours, 13 minutes.

The flight distance from Ontario to Seattle is 956 Miles.

Reverse Journey

Seattle to Ontario
2 hours, 32 minutes

Flight Time By Airline ?

Alaska
2h 38m
Delta
2h 40m
Taxiing Out
Air Time
Taxiing In

Flight Time by Time of Day ?

12AM06AM12PM06PM 30m1h1h 30m2h2h 30m
Taxiing Out
Air Time
Taxiing In

Flights By Time of Day ?
(Average)

12AM06AM12PM06PM0.00.51.01.52.0

Flights Per Week

44

Distance

956 Miles

Flights By Month ?

JFMAMJJASOND050100150200

Flights By Day of Week ?
(Average)

MonTueWedThuFriSatSun0246

Flights By Airline ?
(Per Week)

Alaska
24
Delta
19

Frequently Asked Questions

How far is Ontario from Seattle by plane?

The distance from Ontario to Seattle by plane is 956 Miles. This is the air distance on the most direct route taken by the vast majority of flights.

How long is the flight from Ontario to Seattle?

The flight time from Ontario to Seattle is 2 hours, 39 minutes. The time spent in the air is 2 hours, 13 minutes. These numbers are averages. In reality, it varies by airline with Alaska being the fastest taking 2 hours, 38 minutes, and Delta the slowest taking 2 hours, 40 minutes.

What airlines fly from Ontario to Seattle?

Delta and Alaska are the airlines with direct flights from Ontario to Seattle.

Does Southwest fly from Ontario to Seattle?

Southwest does not fly from Ontario (ONT) to Seattle (SEA). Keep in mind that Southwest may fly to other nearby airports, as they will often fly into smaller airpors instead of larger ones. This is because the costs are often lower to fly into smaller airports, and they pass the savings on to you.

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 Ontario 5 minutes early
Taxi Out Time 14 minutes
In the Air 133 minutes
Taxiing In 10 minutes
Arrives Seattle 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 Ontario to Seattle, Alaska is 89% reliable, which means that Alaska flights are on time 89% of the time, and cancelled or delayed the remaining time.

Airline Normal Flights Arrival Delayed* Flight Cancelled
Alaska 89% 10% 1%
Delta 88% 11% 1%

Flight Time By Airline Flight Time By Airline Chart

Each airline takes a different amount of time to fly between Ontario 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)
Alaska 14 132 10 158
Delta 13 134 10 160

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
9pm 0.49
4pm 0.43
8pm 0.16
2pm 0.07
7pm 0.9
9am 0.19
11am 0.82
5pm 0.17
3pm 0.16
12pm 0.08
6pm 0.04
7am 0.07
5am 0.1
6am 1.8
10am 0.76

Flights By Month Flights By Month Chart

The quantity of flights from Ontario 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 164
February 148
March 186
April 196
May 204
June 206
July 216
August 212
September 210
October 204
November 192
December 167

Flights By Day Of Week Flights By Day of Week Chart

The quantity of flights from Ontario 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 6.58
Tuesday 5.96
Wednesday 6.08
Thursday 6.62
Friday 6.54
Saturday 5.96
Sunday 6.6

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
Alaska 0
Delta 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)
9pm 14 127 9 154
4pm 13 129 10 153
8pm 14 134 10 160
2pm 16 136 8 163
7pm 12 133 10 160
9am 14 136 11 160
11am 13 132 11 160
5pm 14 134 8 158
3pm 12 134 9 157
12pm 13 134 7 159
6pm 11 129 9 154
7am 12 134 12 159
5am 13 146 10 170
6am 15 134 11 162
10am 14 133 10 158
* Delayed more than 20 minutes.
All data above is a median or mean as appropriate.