Southwest Airlines flights from COS to PHX
Find comprehensive Southwest Airlines flight information, schedules, and booking details for direct flights from COS to PHX. Southwest Airlines operates 2-6 flights daily flights on this route.• Flight Duration: 1h 45m - 2h 10m (average flight time)• Distance: 554 miles (891 km) (air miles between airports)• Daily Flights: 2-6 flights (scheduled departures per day)
COS
PHX
FLIGHT TIME
1h 45m - 2h 10m
FLIGHT DISTANCE
554 miles (891 km)
1h 55m - 2h 5m
05:25
17:30
554 miles (891 km)
June
1 (Show)
23
Southwest Airlines Flight Schedule from COS to PHX
| Flight | Airline | Departure | Arrival | Aircraft |
|---|---|---|---|---|
WN2083 |  Southwest Airlines | 05:25 | 07:30:00 | Boeing 737MAX 8 Passenger |
WN2377 | Southwest Airlines | 13:10 | 15:05:00 | Boeing 737-700 (winglets) Passenger/BBJ1 |
WN2090 | Southwest Airlines | 17:30 | 19:25:00 | Boeing 737MAX 8 Passenger |
Southwest Airlines Monthly Flight Calendar
December 2025
Route Insights
Duration variability: Flight duration on this route can vary based on aircraft type, wind conditions, and airline scheduling. Average duration is 1h 45m - 2h 10m.
Pricing patterns: June typically offers lower prices due to reduced demand outside peak travel seasons.
Best departure times: Peak departure times are 5:00, 13:00, 17:00, offering more flight options and potentially better connections.
COS - PHX flight price statistics
$280
ApproximateThe numbers are average prices found based on user searches for direct flights between the airports. It's calculated from the cheapest prices found per month for a round-trip with 1 adult and can vary depending on the amount of data we have for this particular route.
$242
Jan$222
Feb$289
Mar$267
Apr$170
May$100
Jun$170
Jul$114
Aug$340
Sep$641
Oct$180
Nov$621
DecSouthwest Airlines Terminal Information
Terminal information for Southwest Airlines on this route is currently being updated. Please check back soon or contact the airports directly for terminal details.
Frequently Asked Questions about Southwest Airlines Flights
How many Southwest Airlines flights operate from COS to PHX?
Southwest Airlines operates 3 flights from COS to PHX.
What city does PHX airport serve?
PHX airport serves Phoenix.
How long is the Southwest Airlines flight from COS to PHX?
The flight duration is approximately 1h 45m - 2h 10m.
What is the distance from COS to PHX?
The distance is 554 miles (891 km).
What aircraft does Southwest Airlines use on this route?
Southwest Airlines uses Boeing 737MAX 8 Passenger, Boeing 737-700 (winglets) Passenger/BBJ1 on this route.
What are the earliest and latest Southwest Airlines flight departure times?
The earliest Southwest Airlines flight departs at 05:25 and the latest departs at 17:30.
What is the cheapest month to fly Southwest Airlines from COS to PHX?
June is typically the cheapest month to fly Southwest Airlines on this route.
What is the average price for a Southwest Airlines flight from COS to PHX?
The average price for a round-trip Southwest Airlines flight on this route is approximately $280. Prices can vary based on booking time and demand.
How many Southwest Airlines flights operate per week on this route?
Southwest Airlines operates approximately 23 flights per week from COS to PHX.