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$181+ Cheap flights from Flagstaff to Denver (FLG - DEN)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/16. Fares are subject to change and may not be available on all flights or dates of travel.
FLG — DEN
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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Cheap flight deals from Flagstaff to Denver

Discover tips and strategies to find the most affordable flight options for your journey from Flagstaff (FLG) to Denver (DEN). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated September 11, 2025.

Round-trip from

$336
(American Airlines)

One-way from

$181
(American Airlines)

Popular in

July

Cheapest in

August

Average price

$420
From Flagstaff Pulliam to Denver Intl
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One-way flight from Flagstaff Pulliam to Denver Intl
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High demand for flights, 1% potential price rise
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Cheapest flight prices on average. 2% potential price decrease ($13 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Flagstaff to Denver

Cheapest flights from Flagstaff to Denver
Explore the most affordable flight options available from Flagstaff to Denver. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.

This American Airlines deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/178:00 amFLG - DEN
1 stop6h 32mAmerican Airlines
Tue 10/2112:13 pmDEN - FLG
1 stop6h 44mAmerican Airlines
Deal found 9/10$336
This American Airlines deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/1812:50 pmFLG - DEN
1 stop5h 23mAmerican Airlines
Fri 11/215:28 amDEN - FLG
1 stop3h 57mAmerican Airlines
Deal found 9/10$356
This American Airlines deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/712:50 pmFLG - DEN
1 stop5h 23mAmerican Airlines
Sun 11/97:13 amDEN - FLG
1 stop5h 17mAmerican Airlines
Deal found 9/9$376
This American Airlines deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/2710:36 amFLG - DEN
1 stop4h 50mAmerican Airlines
Mon 12/16:52 pmDEN - FLG
1 stop4h 51mAmerican Airlines
Deal found 9/11$396
This American Airlines deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/1612:51 pmFLG - DEN
1 stop5h 21mAmerican Airlines
Mon 12/227:10 amDEN - FLG
1 stop5h 30mAmerican Airlines
Deal found 9/11$406
This American Airlines deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/274:07 pmFLG - DEN
1 stop6h 33mAmerican Airlines
Tue 12/307:10 amDEN - FLG
1 stop5h 30mAmerican Airlines
Deal found 9/10$416
This American Airlines deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/912:51 pmFLG - DEN
1 stop5h 21mAmerican Airlines
Fri 12/122:19 pmDEN - FLG
1 stop4h 13mAmerican Airlines
Deal found 9/11$426
This American Airlines deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/295:24 pmFLG - DEN
1 stop3h 37mAmerican Airlines
Wed 10/18:00 amDEN - FLG
1 stop4h 25mAmerican Airlines
Deal found 9/10$436
This American Airlines deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/910:17 amFLG - DEN
1 stop4h 15mAmerican Airlines
Sun 10/127:25 amDEN - FLG
1 stop6h 25mAmerican Airlines
Deal found 9/9$446
This American Airlines deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/197:39 amFLG - DEN
1 stop4h 05mAmerican Airlines
Sat 12/2010:58 amDEN - FLG
1 stop4h 37mAmerican Airlines
Deal found 9/11$456

Cheapflights Fare Finder

 
Customize your flight search to find flights from Flagstaff to Denver that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 11, 2025.
Use the filters below to find and compare flights from Flagstaff to Denver that are best for you.

Fly from

Flagstaff

Fly to

Denver

Route

Depart

Return

Price

FlagstaffDenver

FLG - DEN

FLGDEN

Flagstaff Pulliam

Tue 11/18

12:50 pm-6:13 pm

1 stop5h 23m

Denver Intl

Fri 11/21

5:28 am-9:25 am

1 stop3h 57m

$356

FlagstaffDenver

FLG - DEN

FLGDEN

Flagstaff Pulliam

Tue 12/9

12:51 pm-6:12 pm

1 stop5h 21m

Denver Intl

Tue 12/16

2:19 pm-6:32 pm

1 stop4h 13m

$376

FlagstaffDenver

FLG - DEN

FLGDEN

Flagstaff Pulliam

Wed 12/10

7:45 am-11:58 am

1 stop4h 13m

Denver Intl

Tue 12/16

2:19 pm-6:32 pm

1 stop4h 13m

$376

FlagstaffDenver

FLG - DEN

FLGDEN

Flagstaff Pulliam

Wed 12/10

12:51 pm-6:12 pm

1 stop5h 21m

Denver Intl

Mon 12/15

10:58 am-3:34 pm

1 stop4h 36m

$376

FlagstaffDenver

FLG - DEN

FLGDEN

Flagstaff Pulliam

Fri 12/12

11:37 am-6:12 pm

1 stop6h 35m

Denver Intl

Tue 12/16

2:19 pm-6:32 pm

1 stop4h 13m

$376

FlagstaffDenver

FLG - DEN

FLGDEN

Flagstaff Pulliam

Fri 11/7

12:50 pm-6:13 pm

1 stop5h 23m

Denver Intl

Sun 11/9

7:13 am-12:30 pm

1 stop5h 17m

$376

FlagstaffDenver

FLG - DEN

FLGDEN

Flagstaff Pulliam

Mon 12/8

4:04 pm-10:12 pm

1 stop6h 08m

Denver Intl

Mon 12/15

10:58 am-3:34 pm

1 stop4h 36m

$426

FlagstaffDenver

FLG - DEN

FLGDEN

Flagstaff Pulliam

Thu 12/11

4:04 pm-10:12 pm

1 stop6h 08m

Denver Intl

Thu 12/18

7:10 am-12:40 pm

1 stop5h 30m

$426

FlagstaffDenver

FLG - DEN

FLGDEN

Flagstaff Pulliam

Tue 12/9

12:51 pm-6:12 pm

1 stop5h 21m

Denver Intl

Sun 12/14

7:00 am-12:27 pm

1 stop5h 27m

$426

FlagstaffDenver

FLG - DEN

FLGDEN

Flagstaff Pulliam

Fri 12/12

11:37 am-3:13 pm

1 stop3h 36m

Denver Intl

Sun 12/14

10:58 am-3:34 pm

1 stop4h 36m

$426

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/11

Showing 1-10 of 17 results
1
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Best time to book a flight from Flagstaff to Denver

Have a flexible travel schedule? Discover the best time to fly to Denver from Flagstaff with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Flagstaff to Denver

What is the cheapest month to book a flight from Flagstaff to Denver?

Currently, October is the cheapest month in which you can book a flight from Flagstaff to Denver (average of $197). Flying from Flagstaff to Denver in March is currently the most expensive (average of $278). 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 FLG to DEN?

Find hourly flight availability from Flagstaff to Denver. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 11, 2025.

It’s optimal to fly from Flagstaff to Denver in the afternoon. By choosing this option you can save up to 9% on the cost of your flight, compared to a flight in the morning.

How much does it cost to fly round-trip from Flagstaff to Denver?

Reviews of airlines servicing Denver

Get insights into the airlines that provide service to Denver. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Denver. Reviews last updated September 11, 2025.
Read through reviews of airlines operating flights from Flagstaff to Denver, such as American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
American Airlines
7.2
Good
10,000 reviews

Entertainment

6.9

Food

6.4

Boarding

7.5

Comfort

7.2

Overall

7.2

Crew

8.0

Reviews

1 / 20
2.0
Mediocre

Jeremy,Sep 2025

SAN - PHL

Terrible. Bad customer service and unacceptable delay on the tarmac
American Airlines
7.2
Good
10,000 reviews
American Airlines
7.2
Good
10,000 reviews

Entertainment

6.9

Food

6.4

Boarding

7.5

Comfort

7.2

Overall

7.2

Crew

8.0

Reviews

1 / 20
2.0
Mediocre

Jeremy,Sep 2025

SAN - PHL

Terrible. Bad customer service and unacceptable delay on the tarmac

Related info for your journey

Find useful and relevant information for your journey from Flagstaff to Denver. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Flagstaff to Denver?

    A quick flight from Flagstaff to Denver can take about 5h 23m. American Airlines provides one of the quickest options available for as low as $356. Flagstaff and Denver are separated by a distance of 503 mi.

  • What is the cheapest airline to fly from Flagstaff to Denver round-trip?

    Cheapflights users have booked flights from Flagstaff to Denver round-trip from $305. This flight start at 42% lower than the current average price 3 months from now.

  • Can I find deals for flights from Flagstaff to Denver that include hotel bookings?

    Yes. In addition to deals on Flagstaff to Denver flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Flagstaff to Denver?

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

  • Can I find deals for business class flights from Flagstaff to Denver?

    Yes. Cheapflights offers flight deals from Flagstaff to Denver 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 Flagstaff to Denver?

    Currently, October is the cheapest month in which you can book a flight from Flagstaff to Denver (average of $197). Flying from Flagstaff to Denver in March is currently the most expensive (average of $278). 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

Traveling to a place near Denver?

Book flights to Denver if you plan to visit one of these locations
Westminster
Black Hawk
Golden
Winter Park
Broomfield
Greeley
Lone Tree
Lakewood
Cripple Creek
Thornton
Silverthorne
Frisco
Manitou Springs
Fort Morgan
Glendale
Wheat Ridge
Brighton
Longmont
Idaho Springs
Parker

Browse thousands of different options on Cheapflights for your next trip

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Top airline flying from Flagstaff to Denver

Discover the top airline that operate flights from Flagstaff to Denver. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$305Average$534FlexibilityNo cancel feeOn-time71%

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