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Cheap flights from Colorado Springs (COS) to Phoenix

COS — PHX
Nov 21 — Nov 281
Sat 11/21
Sat 11/28
1 adult, Economy
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Cheapflights Tip: The best prices from Colorado Springs to Phoenix are usually found in September or February, booked 83 days in advance, depart on a Wednesday or Tuesday and return on a Wednesday

Find flight deals from Colorado Springs to Phoenix

Popular in

December

Cheapest in

September

Average price

$355
Highest demand for flights based on searches. 5% potential increase in price ($20 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($6 potential savings vs. average RT price).
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Average for round-trip flights in October 2026
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Best time to book a flight from Colorado Springs to Phoenix

Have a flexible travel schedule? Discover the best time to fly to Phoenix from Colorado Springs with our price prediction graph.
Estimated round-trip price

Cheapflights Insights

Everything you need to know about your flight from Colorado Springs to Phoenix

How far ahead should I book a flight from Colorado Springs to Phoenix?

The price you pay for your flight from Colorado Springs to Phoenix may vary depending on when you book. For the best chance of a lower fare, look to book 78 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from Colorado Springs to Phoenix?

Currently, September is the cheapest month in which you can book a flight from Colorado Springs to Phoenix (average of $300). Flying from Colorado Springs to Phoenix in December is currently the most expensive (average of $417). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from COS to PHX?

One of the essential ways to save on airfare from Colorado Springs to Phoenix is to remain as flexible as possible. Flights that are in the evening tend to be the most expensive. A flight at noon could potentially save you up to 32% on airfare.

What is the cheapest day to fly from Colorado Springs to Phoenix?

Travelers seeking maximum savings on their Colorado Springs to Phoenix flight should consider departing on Wednesday at noon when fares are most often at their lowest. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing Phoenix

Get a feel of what it's like to fly with Southwest,United Airlines, andAllegiant Air from Colorado Springs to Phoenix by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
7.9
Good
4,209 reviews

Comfort

8.0

Boarding

8.1

Food

7.0

Entertainment

7.4

Crew

8.6

Overall

7.9

Reviews

1 / 20
10.0
Excellent

Courtney,Sep 2026

DEN - STL

I still think the aircraft should load from the back and window seats first for all passengers. It's so much easier and efficient to board when you do not have to worry about hitting Anyone already seated.
Southwest
7.9
Good
4,209 reviews
Southwest
7.9
Good
4,209 reviews

Comfort

8.0

Boarding

8.1

Food

7.0

Entertainment

7.4

Crew

8.6

Overall

7.9

Reviews

1 / 20
10.0
Excellent

Courtney,Sep 2026

DEN - STL

I still think the aircraft should load from the back and window seats first for all passengers. It's so much easier and efficient to board when you do not have to worry about hitting Anyone already seated.
United Airlines
7.3
Good
10,401 reviews
Southwest
7.9
Good
4,209 reviews

Comfort

8.0

Boarding

8.1

Food

7.0

Entertainment

7.4

Crew

8.6

Overall

7.9

Reviews

1 / 20
10.0
Excellent

Courtney,Sep 2026

DEN - STL

I still think the aircraft should load from the back and window seats first for all passengers. It's so much easier and efficient to board when you do not have to worry about hitting Anyone already seated.
Allegiant Air
7.3
Good
677 reviews
Southwest
7.9
Good
4,209 reviews

Comfort

8.0

Boarding

8.1

Food

7.0

Entertainment

7.4

Crew

8.6

Overall

7.9

Reviews

1 / 20
10.0
Excellent

Courtney,Sep 2026

DEN - STL

I still think the aircraft should load from the back and window seats first for all passengers. It's so much easier and efficient to board when you do not have to worry about hitting Anyone already seated.
American Airlines
7.0
Good
12,186 reviews
Southwest
7.9
Good
4,209 reviews

Comfort

8.0

Boarding

8.1

Food

7.0

Entertainment

7.4

Crew

8.6

Overall

7.9

Reviews

1 / 20
10.0
Excellent

Courtney,Sep 2026

DEN - STL

I still think the aircraft should load from the back and window seats first for all passengers. It's so much easier and efficient to board when you do not have to worry about hitting Anyone already seated.

Related info for your journey

  • What airport do you fly from for flights from Colorado Springs to Phoenix?

    Colorado Springs (COS), located 6.7 mi from the city center, is the airport you fly out of when you book flights from Colorado Springs to Phoenix. 4 airlines have flights from Colorado Springs to Phoenix on a regular basis. Booking flights from Colorado Springs to Phoenix should not be difficult; the airport handles an average of 0 outbound flights to Phoenix per day.

  • What are the cheapest airlines flying from Colorado Springs to Phoenix round-trip?

    According to our current data, Allegiant Air ($89), United Airlines ($179), and Southwest ($249) offers the cheapest pricing from Colorado Springs to Phoenix. Allegiant Air is 75% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the cheapest airlines to fly from Colorado Springs to Phoenix one-way?

    For one-way options, check prices for Allegiant Air. According to our data, you can fly for as low as $55. Users have also found prices from $118 and $121 on United Airlines and Southwest, respectively.

  • What are the cheapest flights from Colorado Springs to Phoenix?

    The cheapest flight price from Colorado Springs to Phoenix is $158. On average you can expect to pay $318. The most popular route, (Colorado Springs - Phoenix Sky Harbor Intl), can usually be booked for $223.

  • Can I find deals for flights from Colorado Springs to Phoenix that include hotel bookings?

    Yes. In addition to deals on Colorado Springs to Phoenix flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Colorado Springs to Phoenix?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Colorado Springs to Phoenix.

  • Can I find deals for business class flights from Colorado Springs to Phoenix?

    Yes. Cheapflights offers flight deals from Colorado Springs to Phoenix by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Colorado Springs to Phoenix?

    Currently, September is the cheapest month in which you can book a flight from Colorado Springs to Phoenix (average of $300). Flying from Colorado Springs to Phoenix in December is currently the most expensive (average of $417). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Top 4 airlines flying from Colorado Springs to Phoenix

AirlineCheapestAverageFlexibilityOn-time
Allegiant AirCheapest$89Average$142FlexibilityNo cancel feeOn-time88%
United AirlinesCheapest$179Average$385FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$249Average$350FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$350Average$382FlexibilityNo cancel feeOn-time71%

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