Seattle–Tacoma International Airport
Seattle, United StatesSEA / KSEA
International hub · 132 direct destinations · 3 runways · longest runway 11,900 ft
48 °F · Partly cloudySource: METAR observation via the NOAA Aviation Weather Center
Route
Seattle → Colorado Springs
SEA
SeattleSeattle–Tacoma International Airport
SeattleSeattle–Tacoma International AirportCOSColorado SpringsCity of Colorado Springs Municipal Airport
Colorado SpringsCity of Colorado Springs Municipal Airport- Distance
- 1,066 mi
- Estimated flight time
- ~2h 40m
Colorado Springs is currently 1 hour ahead of Seattle.
Observed nonstop
How often does this route fly?
Frequency
Daily at most
On average around 1 flights a day, observed from October 2025 to September 2026.
- 1
- flights per day
- 2
- busiest month · Aug
- 1
- quietest month · Dec
- 2 hr 44 min
- measured flight time
- 3 / 12
- months seen
Through the year
Per day, month by month
- –Jan2026
- –Feb
- –Mar
- –Apr
- –May
- –Jun
- –Jul
- 2Aug
- 1Sep
- –Oct2025
- –Nov
- 1Dec
Airlines
Who flies it
United Airlinesnow and then
Southwest Airlinesnow and then
Through the day
Departure times
Local time in Seattle. Most departures between 13:00 and 16:00.
- 00:00
- 01:00
- 02:00
- 03:00
- 04:00
- 05:00
- 06:00
- 07:00
- 08:00
- 09:00
- 10:00
- 11:00
- 12:00
- 13:00
- 14:00
- 15:00
- 16:00
- 17:00
- 18:00
- 19:00
- 20:00
- 21:00
- 22:00
- 23:00
Through the week
By weekday
- 0Mon
- 0Tue
- 0Wed
- 0Thu
- 0.1Fri
- 0.1Sat
- 0Sun
Fleet
Aircraft observed
- Airbus A321neoA21N27%
- Boeing 737-700B73718%
All the numbers in a table
| Month | Per day | Seen | Airlines |
|---|---|---|---|
| January 2026 | Not seen in this month. | ||
| February 2026 | Not seen in this month. | ||
| March 2026 | Not seen in this month. | ||
| April 2026 | Not seen in this month. | ||
| May 2026 | Not seen in this month. | ||
| June 2026 | Not seen in this month. | ||
| July 2026 | Not seen in this month. | ||
| August 2026 | 2 | 6 |
|
| September 2026 | 1 | 3 |
|
| October 2025 | Not seen in this month. | ||
| November 2025 | Not seen in this month. | ||
| December 2025 | 1 | 2 |
|
Airlines observed on this route
From observed callsign routes on SEA-COS - not a booking guarantee.
About this route
- Domestic route: both airports are in the same country.
- Direct destinations observed from Seattle: 132.
- Direct destinations observed from Colorado Springs: 37.
The airports on this route
City of Colorado Springs Municipal Airport
Colorado Springs, United StatesCOS / KCOS
Regional airport · 37 direct destinations · 3 runways · longest runway 13,501 ft
37 °F · ClearSource: METAR observation via the NOAA Aviation Weather Center
Alternative airports for this journey
Same journey, a different airport nearby - with an observed direct connection.
About the route from Seattle to Colorado Springs
The observed direct connection between Seattle–Tacoma International Airport (SEA) and City of Colorado Springs Municipal Airport (COS) covers approximately 1,066 mi. The estimated flight time is around 2h 40m. Southwest Airlines and United Airlines have been observed on this connection in the available route data.
Frequently asked questions about this route
- How far is Seattle from Colorado Springs by air?
- The great-circle distance between Seattle–Tacoma International Airport and City of Colorado Springs Municipal Airport is approximately 1,066 mi.
- How long is the flight from Seattle to Colorado Springs?
- Based on the distance, the estimated flight time is about 2h 40m. This is an estimate, not a schedule.
- Is there a direct connection from Seattle to Colorado Springs?
- Yes, a direct connection between SEA and COS has been observed in our route data.
- Which airlines have been observed on this route?
- In the available route data: Southwest Airlines and United Airlines.
- How often is there a flight from Seattle to Colorado Springs?
- On average around 1 flights a day, measured over twelve months (October 2025 to September 2026) in the flight archive, with 11 observed flights. Mainly United Airlines, Southwest Airlines. That is an observation, not a timetable.
- What is the current time difference between Seattle and Colorado Springs?
- Colorado Springs is currently 1 hour ahead of Seattle.
Where this data comes from
The route data comes from the flight archive (ADS-B, adsb.lol): which connections actually flew over the last twelve full months and who flew them, combined with our own airport, runway, and airline datasets. It is reference data about observed routes - not a current timetable and no claim about bookability.
The frequency and aircraft on this page come from the flight archive (ADS-B, 12 months, October 2025 to September 2026), summarized per route per month. We do not see every flight, so it is a floor, not a count.
Route data updated on October 11, 2026.