Southwest AirlinesDepart20:05
Sat, Nov 21COS → SEA
5h 10m · 1 stop
$163one way, per person
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- Cheapest fare
- $163
- Cheapest month
- November
- Direct flights
- Not recently
- Quickest trip
- 4h 28m
Southwest Airlines · Sat, Nov 21
from $163
Usually 1+ stop
1,720 km
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Cheapest month to fly from Colorado Springs to Seattle
Lowest one-way fare per person in each month. Choose a month to see every date.
Cheapest dates in November 2026
The lowest fares we've seen for each day, cheapest first.
Southwest Airlines
United AirlinesDepart18:25
Fri, Nov 20COS → SEA
4h 28m · 1 stop
$234one way, per person
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About flights from Colorado Springs to Seattle
Colorado Springs (COS) and Seattle (SEA) are about 1,720 km apart. We haven't seen direct fares on this route recently, so expect at least one stop; the quickest journey we've seen takes about 4h 28m. Over the next few months, one-way fares start from $163, and November 2026 is currently the cheapest month to fly.
These prices come from searches travellers made in the last 48 hours, so they move quickly. If you see a good fare, it's worth booking soon. FlightsExp is free to use: you book directly with our travel partner.
Frequently asked questions
How much is a flight from Colorado Springs to Seattle?
The cheapest one-way fare we've seen recently is $163 with Southwest Airlines, departing Saturday, November 21, 2026.
What is the cheapest month to fly from Colorado Springs to Seattle?
November 2026 currently has the lowest fares, from $163 one way.
Are there direct flights from Colorado Springs to Seattle?
We haven't seen direct fares recently, so most journeys include at least one stop.
How long is the flight from Colorado Springs to Seattle?
The quickest journey we've seen takes about 4h 28m. Colorado Springs and Seattle are around 1,720 km apart.
Which airlines fly from Colorado Springs to Seattle?
Recent fares on this route were with Southwest Airlines and United Airlines.
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