Colorado Springs to Seattle (COS–SEA) — Airlines, Schedules & Connections

COS Airport Page →
1,066 mi airlines 0/wk
On-time Some delays Frequent delays
Connecting Flight Schedule 38 1-stop flights Verified 1mo ago
Nonstop 1-Stop 2-Stop Hide separate tickets Hide overnight Hide codeshares
  Flight Airline AC Dep Arr Dur OTP Sched  
✈ Nonstop

No flights match your filters.

No nonstop flights on this route. connecting options below.

✦ 1-STOP More options, longer trips
✧ 2-STOP Loading... Reach the hardest destinations
Colorado Springs to Seattle
Connecting service available through multiple hubs.
1 Airlines 1,066 mi 1h 52m nonstop -1h behind 38 1-stop hubs

COS–SEA is served by 1 airline with nonstop service. SkyWest Airlines leads the route. The flight covers 1,066 miles in approximately 1h 52m. Beyond nonstop, 38 hubs offer 1-stop connections.

Also explore COS Routes SEA Routes COS Live Flights SEA Live Flights COS Delays SEA Delays
Carriers on this route

Airline Landscape

All carriers operating nonstop COS–SEA service, compared side by side.
Airline Freq/wk Aircraft Duration Dep OTP Alliance Codeshares
OO SkyWest Airlines 0 – – 100% – –
Alliance coverage
Unaffiliated: OO (0 flights/wk, 0%)
OTP based on airport-level delay snapshots. Duration ranges reflect seasonal/directional variation.
Connections

Connection Landscape

Beyond nonstop. 1-stop and 2-stop options for COS to SEA.
1-STOP
One-Stop Connections
38
Hubs
~3h
Fastest
~22h
Longest
Verified with published schedule alignment and minimum connection time.
2-STOP
Two-Stop Connections
960
Candidates
Two-stop connections loaded in the connections tab above.
Connections computed from published schedules with minimum connection time verification. Use the interactive explorer above the fold to filter by airline, tier, and layover time.
Alternatives

Other ways to reach Seattle from Colorado Springs

Nearby airports with service to Seattle–Tacoma International Airport.
Metric COS→SEA DEN→SEA ASE→SEA
Distance from COS – 73 mi 120 mi
Nonstop airlines 1 18 1
Weekly flights 0 304 –
Flight time 1h 52m 2h 16m 1h 4m
Departure OTP 100% – –
Denver (DEN) to Seattle flights · Aspen (ASE) to Seattle flights · Eagle (EGE) to Seattle flights
Airports within 200 miles of COS with service to Seattle–Tacoma International Airport.
Know before you go

Travel Essentials

Practical planning for this route.
Time Difference
-1h
Seattle is 1 hour behind Colorado Springs.
COS: MDT · SEA: PDT

When it's 6:00 PM in Colorado Springs, it's 5:00 PM in Seattle.
Distance & Flight Time
1,066 mi / 1,716 km
Nonstop flight time is approximately 1h 52m.
Getting from SEA

Link Light Rail from the airport station (inside the terminal) to downtown Seattle takes 38 minutes ($3.50). No transfers needed; trains run 5am to 1am daily.Taxis and ride-shares to downtown cost $35–55. For Bellevue and Eastside destinations (across Lake Washington), ride-share is faster than Link. Car rentals are in the consolidated rental facility; take the free shuttle from baggage claim. Sound Transit buses serve Tacoma, Renton, and Federal Way.

Seattle Climate

Marine west coast climate. Winters are mild but persistently grey and rainy (3–9°C). Snow is rare at sea level but can occur December through February, causing significant disruptions when it does. The airport sits between Seattle and Tacoma in an area that receives more fog and low cloud than downtown Seattle.

Summers are famously pleasant (18–25°C) with low humidity and mostly clear skies, one of the best flying climates in the US from June through September. The wettest months are November through January.

Check current weather forecasts before travel.
Facts

COS–SEA Quick Facts

Key statistics for the Colorado Springs to Seattle route.
Route details
Distance1,066 mi / 1,716 km
Flight time1h 52m
Time difference-1 hour
Airlines (nonstop)1
1-stop connections38 hubs
Origin: COS
Full nameCity of Colorado Springs Municipal Airport
IATA / ICAOCOS / KCOS
TimezoneAmerica/Denver
Passengers/yr2.5M
Elevation6,187 ft / 1,886 m
Destination: SEA
Full nameSeattle–Tacoma International Airport
IATA / ICAOSEA / KSEA
TimezoneAmerica/Los_Angeles
Passengers/yr52.6M
Elevation433 ft / 132 m
FAQ

Frequently Asked Questions

Common questions about COS to SEA flights.
Nonstop flights from City of Colorado Springs Municipal Airport to Seattle–Tacoma International Airport take approximately 1h 52m. The route covers 1,066 miles.
1 airline operates nonstop service: SkyWest Airlines.
Yes, 1-stop connections are available through ASE, CCR, AZA, JAC, BOI, EGE, BIL, ABQ, SJC, NUQ, ONT, TUS, SFO, OKC, TUL, BUR, HOU, LAX, BNA, CVG, AUS, CLE, IAD, BOS, JFK, CUN, SLC, ORD, DFW, DEN, PHX, LAS, ATL, SNA, HND, SAN, DAL and IAH. These options provide additional schedule flexibility.
Seattle is 1 hour behind Colorado Springs.
Nearby alternatives include DEN, ASE and EGE. See the Alternatives section for a full comparison.
Click the 'Search Flights' button to check availability and prices on Google Flights. You can also compare airlines and schedules on this page to find the best option.
See the On-Time Performance section for the latest delay data at both airports. This shows departure and arrival reliability to help you plan.
Route data is updated regularly from official airline schedules. On-time performance data comes from recent airport delay snapshots.

Flights from COS to SEA

City of Colorado Springs Municipal Airport (COS) and Seattle–Tacoma International Airport (SEA) are connected by nonstop service from SkyWest Airlines.

COS to SEA Flight Duration and Schedule

Nonstop flight time from COS to SEA ranges from 1 hours 52 minutes. The route covers a distance of 1,066 miles (1,716 km).

Connecting Options and Alternatives

38 one-stop connections are available, with the fastest taking approximately 3 hours via ASE. Two-stop connections are also available via intermediate hubs. Nearby alternative airports include Denver (DEN), Aspen (ASE) and Eagle (EGE).