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$220+ 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 7/10. Fares are subject to change and may not be available on all flights or dates of travel.
FLG — DEN
Apr 12 — Apr 191
Sun 4/12
Sun 4/19
1 adult, Economy
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Cheap 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 March 13, 2026.

This American Airlines deal was found by Cheapflights users on 3/9. 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.
Wed 4/85:01 pm
FLG
-
DEN
1 stop3h 37m
American Airlines
Wed 4/1512:08 pm
DEN
-
FLG
1 stop5h 23m
American Airlines
Deal found 3/9$400
This American Airlines deal was found by Cheapflights users on 3/11. 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 6/21:40 pm
FLG
-
DEN
1 stop3h 36m
American Airlines
Sat 6/68:04 am
DEN
-
FLG
1 stop4h 09m
American Airlines
Deal found 3/11$420
This American Airlines deal was found by Cheapflights users on 3/8. 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 8/2210:30 am
FLG
-
DEN
1 stop6h 48m
American Airlines
Mon 8/247:10 am
DEN
-
FLG
1 stop3h 47m
American Airlines
Deal found 3/8$422
This American Airlines deal was found by Cheapflights users on 3/8. 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 3/2412:21 pm
FLG
-
DEN
1 stop4h 54m
American Airlines
Sat 4/112:13 pm
DEN
-
FLG
1 stop5h 29m
American Airlines
Deal found 3/8$433
This American Airlines deal was found by Cheapflights users on 3/9. 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 4/105:01 pm
FLG
-
DEN
1 stop3h 37m
American Airlines
Sun 4/122:13 pm
DEN
-
FLG
1 stop5h 29m
American Airlines
Deal found 3/9$444
This American Airlines deal was found by Cheapflights users on 3/9. 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.
Sat 10/310:20 am
FLG
-
DEN
1 stop6h 41m
American Airlines
Sat 10/1012:13 pm
DEN
-
FLG
1 stop6h 19m
American Airlines
Deal found 3/9$463
This American Airlines deal was found by Cheapflights users on 3/13. 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 5/811:41 am
FLG
-
DEN
1 stop5h 42m
American Airlines
Mon 5/112:13 pm
DEN
-
FLG
1 stop5h 29m
American Airlines
Deal found 3/13$464
This American Airlines deal was found by Cheapflights users on 3/8. 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.
Sun 4/54:50 pm
FLG
-
DEN
1 stop5h 03m
American Airlines
Sun 4/122:13 pm
DEN
-
FLG
1 stop5h 29m
American Airlines
Deal found 3/8$483
This American Airlines deal was found by Cheapflights users on 3/11. 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.
Sat 4/1111:41 am
FLG
-
DEN
1 stop5h 24m
American Airlines
Tue 4/211:58 pm
DEN
-
FLG
1 stop5h 46m
American Airlines
Deal found 3/11$490
This American Airlines deal was found by Cheapflights users on 3/8. 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 3/264:50 pm
FLG
-
DEN
1 stop5h 03m
American Airlines
Sat 3/286:45 pm
DEN
-
FLG
1 stop5h 22m
American Airlines
Deal found 3/8$494
This American Airlines deal was found by Cheapflights users on 3/11. 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.
Wed 7/156:50 am
FLG
-
DEN
1 stop3h 37m
American Airlines
Sun 7/197:13 am
DEN
-
FLG
1 stop5h 01m
American Airlines
Deal found 3/11$495

Find 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 March 13, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$400
(American Airlines)

One-way from

$198
(American Airlines)

Popular in

July

Cheapest in

October

Average price

$385
Provider with most accurate pricing for Flagstaff Pulliam-Denver Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Flagstaff Pulliam-Denver Intl flights.
Search Deals
From Flagstaff Pulliam to Denver Intl
Search Deals
One-way flight from Flagstaff Pulliam to Denver Intl
Search Deals
Highest demand for flights based on searches. 17% potential increase in price ($88 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($23 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
Search Deals

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 March 13, 2026.
Use the filters below to find and compare flights from Flagstaff to Denver that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

FlagstaffDenver

FLG - DEN

FLGDEN

Flagstaff Pulliam

Tue 6/2

1:40 pm-6:16 pm

1 stop3h 36m

Denver Intl

Sat 6/6

8:04 am-11:13 am

1 stop4h 09m

$400

FlagstaffDenver

FLG - DEN

FLGDEN

Flagstaff Pulliam

Wed 4/8

5:01 pm-9:38 pm

1 stop3h 37m

Denver Intl

Wed 4/15

12:08 pm-4:31 pm

1 stop5h 23m

$400

FlagstaffDenver

FLG - DEN

FLGDEN

Flagstaff Pulliam

Sat 8/22

10:30 am-6:18 pm

1 stop6h 48m

Denver Intl

Mon 8/24

7:10 am-9:57 am

1 stop3h 47m

$422

FlagstaffDenver

FLG - DEN

FLGDEN

Flagstaff Pulliam

Fri 4/10

5:01 pm-9:38 pm

1 stop3h 37m

Denver Intl

Sun 4/12

2:13 pm-6:42 pm

1 stop5h 29m

$444

FlagstaffDenver

FLG - DEN

FLGDEN

Flagstaff Pulliam

Fri 5/8

11:41 am-6:23 pm

1 stop5h 42m

Denver Intl

Mon 5/11

2:13 pm-6:42 pm

1 stop5h 29m

$464

FlagstaffDenver

FLG - DEN

FLGDEN

Flagstaff Pulliam

Wed 7/15

6:50 am-11:27 am

1 stop3h 37m

Denver Intl

Sun 7/19

7:13 am-11:14 am

1 stop5h 01m

$495

FlagstaffDenver

FLG - DEN

FLGDEN

Flagstaff Pulliam

Thu 4/16

5:01 pm-9:38 pm

1 stop3h 37m

Denver Intl

Mon 4/20

12:08 pm-4:31 pm

1 stop5h 23m

$534

FlagstaffDenver

FLG - DEN

FLGDEN

Flagstaff Pulliam

Thu 3/26

4:50 pm-10:53 pm

1 stop5h 03m

Denver Intl

Mon 3/30

12:26 pm-4:19 pm

1 stop4h 53m

$542

FlagstaffDenver

FLG - DEN

FLGDEN

Flagstaff Pulliam

Mon 3/23

4:50 pm-10:53 pm

1 stop5h 03m

Denver Intl

Sat 3/28

7:52 am-11:11 am

1 stop4h 19m

$554

FlagstaffDenver

FLG - DEN

FLGDEN

Flagstaff Pulliam

Tue 3/31

4:50 pm-10:53 pm

1 stop5h 03m

Denver Intl

Sun 4/5

6:45 pm-11:07 pm

1 stop5h 22m

$563

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/9

Showing 1-10 of 18 resultsSorted by cheapest first
1
2

Compare providers for flights from Flagstaff to Denver

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Flagstaff to Denver in March.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Flagstaff-Denver flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Flagstaff-Denver flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Flagstaff-Denver flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Flagstaff-Denver flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Flagstaff-Denver flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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, May is the cheapest month in which you can book a flight from Flagstaff to Denver (average of $261). Flying from Flagstaff to Denver in September is currently the most expensive (average of $345). 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.

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 March 13, 2026.
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
7.1
Good
11,432 reviews

Food

6.4

Boarding

7.5

Crew

7.9

Comfort

7.2

Entertainment

6.9

Overall

7.1

Reviews

1 / 20
2.0
Mediocre

Anonymous,Mar 2026

MIA - SFO

Horrible. When they power flights for other airlines there is nothing they can do to change or accommodate any changes
American Airlines
7.1
Good
11,432 reviews
American Airlines
7.1
Good
11,432 reviews

Food

6.4

Boarding

7.5

Crew

7.9

Comfort

7.2

Entertainment

6.9

Overall

7.1

Reviews

1 / 20
2.0
Mediocre

Anonymous,Mar 2026

MIA - SFO

Horrible. When they power flights for other airlines there is nothing they can do to change or accommodate any changes

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 3h 37m. American Airlines provides one of the quickest options available for as low as $400. 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 28% 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, May is the cheapest month in which you can book a flight from Flagstaff to Denver (average of $261). Flying from Flagstaff to Denver in September is currently the most expensive (average of $345). 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
Thornton
Black Hawk
Lakewood
Broomfield
Westminster
Golden
Centennial
Greeley
Lone Tree
Wheat Ridge
Silverthorne
Central City
Cripple Creek
Winter Park
Glendale
Manitou Springs
Frisco
Fort Morgan
Brighton
Evergreen

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 March 13, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$305Average$399FlexibilityNo cancel feeOn-time71%

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