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Cheap Flights from San Francisco to COS
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Flight Time from San Francisco to COS
Here's a quick look at the key details for your journey from San Francisco to COS. These estimates are based on typical commercial jet speeds and great‑circle routing.
- Distance: 1,547 km
- Typical Flight Time: 2h 35m
- Route Type: Medium‑haul
These figures are based on direct, great‑circle routing, the shortest path between two points on the globe. Actual flight times may vary depending on winds, aircraft type, and air‑traffic conditions, but this gives you a reliable benchmark for planning your trip.
Flights from San Francisco to COS
Looking for cheap flights from San Francisco to COS? You're in the right place. Timms Travel compares hundreds of airlines and booking options to find you the best prices on flights from San Francisco, USA to COS with no hidden fees and no price mark-ups.
Whether you're travelling for a weekend break, a long-haul adventure, or a business trip, our search pulls together real-time fares so you can compare and book in minutes. We search all trusted partners to bring you flexible ticket options including one-way, return, and multi-city routes on this popular flight corridor.
Prices on the San Francisco to COS route vary throughout the year. To find the best deal, try adjusting your travel dates by a day or two — even small changes can significantly lower the fare. Use the search above to explore all available options.
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Travel Tips for This Route
Make the most of your San Francisco to COS flight
Book early for best prices
Flights typically get cheaper 6–8 weeks before departure. For peak summer routes, book 3–4 months ahead.
Check baggage allowances
Budget airlines often charge extra for hold luggage. Always check what's included before you book.
Set a price alert
Prices fluctuate daily. Search regularly to find when fares drop on this route.
Check visa requirements
Entry rules vary by nationality. Always verify requirements with your destination country's embassy.
About This Route
Typical flight time
Varies by airline & route
Cabin classes
Economy · Business · First
Booking partner
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Trip types
One-way · Return · Multi-city
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· Prices updated in real time · No hidden fees · Powered by Timms Travel