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Denver

$63+ Cheap flights from the United States to Denver (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 11/7. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — DEN
Aug 21 — Aug 281
Thu 8/21
Thu 8/28
1 adult, Economy
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Cheap flight deals from USA to Denver

Keep the following information in mind while searching for USA to Denver flight deals. Data was last updated August 16, 2025.

Round-trip from

$98
(Frontier)

One-way from

$63
(Cheapflightsfares)

Popular in

December

Cheapest in

September

Average price

$318

Good round-trip deal

$115 or less

Good one-way deal

$46 or less
From USA to Denver Intl
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One-way flight from USA to Denver Intl
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High demand for flights, 1% potential price rise
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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 August 2025
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Price to beat on a round-trip flight from USA to Denver Intl.
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Price to beat on a one-way flight from USA to Denver Intl.
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Find flight deals from USA to Denver

Cheapest flights from USA to Denver
Explore the most affordable flight options available from USA to Denver. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 16, 2025.

This Frontier deal was found by Cheapflights users on 8/15. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/1210:25 pmDFW - DEN
Nonstop2h 17mFrontier
Sun 9/146:10 amDEN - DFW
Nonstop2h 06mFrontier
Deal found 8/15$98
This CheapOair deal was found by Cheapflights users on 8/14. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/82:22 pmDFW - DEN
Nonstop2h 19mFrontier
Sun 10/126:15 amDEN - DFW
Nonstop2h 08mFrontier
Deal found 8/14$99
This Frontier deal was found by Cheapflights users on 8/14. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/72:22 pmDFW - DEN
Nonstop2h 19mFrontier
Sat 10/1110:01 amDEN - DFW
Nonstop2h 11mFrontier
Deal found 8/14$100
This Cheapflightsfares deal was found by Cheapflights users on 8/16. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1112:31 pmDFW - DEN
Nonstop2h 21mFrontier
Sun 9/146:10 amDEN - DFW
Nonstop2h 06mFrontier
Deal found 8/16$101
This Frontier deal was found by Cheapflights users on 8/16. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/512:31 pmDFW - DEN
Nonstop2h 21mFrontier
Sun 9/76:10 amDEN - DFW
Nonstop2h 06mFrontier
Deal found 8/16$102
This Frontier deal was found by Cheapflights users on 8/15. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/412:31 pmDFW - DEN
Nonstop2h 21mFrontier
Sun 9/76:10 amDEN - DFW
Nonstop2h 06mFrontier
Deal found 8/15$103
This Cheapflightsfares deal was found by Cheapflights users on 8/16. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/286:00 amDFW - DEN
Nonstop2h 16mFrontier
Tue 9/308:00 amDEN - DFW
Nonstop2h 15mFrontier
Deal found 8/16$104
This Cheapflightsfares deal was found by Cheapflights users on 8/16. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/3010:25 pmDFW - DEN
Nonstop2h 24mFrontier
Wed 9/36:15 amDEN - DFW
Nonstop2h 05mFrontier
Deal found 8/16$105
This CheapOair deal was found by Cheapflights users on 8/15. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/38:00 amDFW - DEN
Nonstop2h 24mFrontier
Sun 9/76:10 amDEN - DFW
Nonstop2h 06mFrontier
Deal found 8/15$106
This Mytrip deal was found by Cheapflights users on 8/16. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/38:00 amDFW - DEN
Nonstop2h 24mFrontier
Fri 9/512:59 amDEN - DFW
1 stop7h 33mFrontier
Deal found 8/16$107
This Frontier deal was found by Cheapflights users on 8/14. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/46:00 amDFW - DEN
Nonstop2h 16mFrontier
Thu 9/118:11 amDEN - DFW
Nonstop2h 15mFrontier
Deal found 8/14$108
This Cheapflightsfares deal was found by Cheapflights users on 8/15. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/315:10 amDFW - DEN
Nonstop2h 14mFrontier
Wed 9/35:00 pmDEN - DFW
Nonstop2h 16mFrontier
Deal found 8/15$109

Cheapflights Fare Finder

 
Customize your flight search to find flights from USA 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 August 16, 2025.
Use the filters below to find and compare flights from the United States to Denver that are best for you.

Fly from

USA

Fly to

Denver

Route

Depart

Return

Price

DallasDenver

DFW - DEN

DFWDEN

Dallas/Fort Worth

Wed 9/24

7:45 am-9:01 am

Nonstop2h 16m

Denver Intl

Sun 9/28

6:00 am-12:29 pm

1 stop5h 29m

$99

DallasDenver

DFW - DEN

DFWDEN

Dallas/Fort Worth

Sat 9/20

8:05 pm-9:22 pm

Nonstop2h 17m

Denver Intl

Tue 9/23

10:30 am-6:45 pm

1 stop7h 15m

$99

DallasDenver

DFW - DEN

DFWDEN

Dallas/Fort Worth

Thu 9/11

12:31 pm-1:52 pm

Nonstop2h 21m

Denver Intl

Sun 9/14

6:10 am-9:16 am

Nonstop2h 06m

$101

DallasDenver

DFW - DEN

DFWDEN

Dallas/Fort Worth

Thu 9/4

10:25 pm-11:42 pm

Nonstop2h 17m

Denver Intl

Sun 9/7

6:10 am-9:16 am

Nonstop2h 06m

$101

DallasDenver

DFW - DEN

DFWDEN

Dallas/Fort Worth

Fri 9/5

10:25 pm-11:42 pm

Nonstop2h 17m

Denver Intl

Sun 9/7

6:10 am-9:16 am

Nonstop2h 06m

$102

DallasDenver

DFW - DEN

DFWDEN

Dallas/Fort Worth

Wed 9/3

6:30 pm-7:54 pm

Nonstop2h 24m

Denver Intl

Fri 9/5

6:10 am-9:16 am

Nonstop2h 06m

$102

DallasDenver

DFW - DEN

DFWDEN

Dallas/Fort Worth

Thu 9/18

6:00 am-7:16 am

Nonstop2h 16m

Denver Intl

Mon 9/22

6:10 am-9:16 am

Nonstop2h 06m

$103

DallasDenver

DFW - DEN

DFWDEN

Dallas/Fort Worth

Fri 9/12

1:53 pm-8:47 pm

1 stop7h 54m

Denver Intl

Tue 9/16

8:00 am-11:15 am

Nonstop2h 15m

$103

DallasDenver

DFW - DEN

DFWDEN

Dallas/Fort Worth

Fri 10/10

9:36 pm-10:59 pm

Nonstop2h 23m

Denver Intl

Sun 10/12

6:15 am-9:23 am

Nonstop2h 08m

$104

DallasDenver

DFW - DEN

DFWDEN

Dallas/Fort Worth

Fri 10/17

9:36 pm-10:59 pm

Nonstop2h 23m

Denver Intl

Mon 10/20

9:19 pm-12:24 am

Nonstop2h 05m

$104

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/14

Showing 1-10 of 60 results
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The best insider tips for theUnited States to Denver flights

Snippets provided in this section are AI-generated based on a summarization of Cheapflights-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
Cheapflights partnered with top experts to bring you the best recommendations for your theUnited States to Denver trip
Airlines
Frontier

Frontier’s UpFront Plus guarantees an empty middle seat for extra comfort.


Frontier offers no in-flight entertainment or Wi-Fi; bring a book or pre-load devices.

Read more about Frontierby Marisa Garcia
United Airlines

United’s Economy Plus offers extra legroom and is available for free to Premier members.


Basic Economy has no carry-on allowance, except for Premier members or select routes.

Read more about United Airlinesby Harriet Baskas
Delta

Delta offers free Wi-Fi on most domestic flights for SkyMiles members.


Delta’s Comfort Plus offers extra legroom, early boarding, and upgraded snacks.

Read more about Deltaby Harriet Baskas
American Airlines

Main Cabin Extra offers more legroom with seats set 34”-35” apart.


Flagship Business class includes lie-flat seats and a chef-curated menu.

Read more about American Airlinesby Marisa Garcia
JetBlue

JetBlue offers free onboard Wifi and screens at every seat with movies and live TV.


Blue Basic fares now include one free carry-on, but changes and seat selection incur fees.

Read more about JetBlueby Blane Bachelor
Alaska Airlines

Alaska’s Premium Class offers extra legroom and free cocktails, but snacks must be purchased.


Saver Fare includes a free carry-on, but seat selection and changes are restricted.

Read more about Alaska Airlinesby Robert Schrader
Airports
DEN

Use the A Line train for a quick 37-minute ride from DEN to Union Station, running every 15 minutes.

Read more about DENby Emily Zemler
Our travel experts
Marisa Garcia

Marisa Garcia

Expert on Frontier and American Airlines

Marisa Garcia

Marisa Garcia

Marisa knows planes inside and out, spending 16 years working on aircraft in hangars at airports around the world. She is an aviation industry expert, specialized in airline interiors and regulations. Ten years ago, she pivoted to journalism. She shares her insights in leading aviation, travel, and business publications and on her site FlightChic.

Read more
Harriet Baskas

Harriet Baskas

Expert on United Airlines and Delta

Harriet Baskas

Harriet Baskas

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, USA TODAY, The Points Guy and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

Read more
Blane Bachelor

Blane Bachelor

Expert on JetBlue

Blane Bachelor

Blane Bachelor

Blane Bachelor is a journalist and editor specializing in travel and aviation who writes regularly for top global outlets. Born and raised in Florida, Blane has worked and lived in four countries, including the Netherlands, where she’s currently based with her family. Her favorite way to get to know a new destination is by running or riding a bike around town – or hearing a spooky ghost story about local history. She will always choose the window seat.

Read more
Robert Schrader

Robert Schrader

Expert on Alaska Airlines

Robert Schrader

Robert Schrader

One of the web's original travel bloggers, Robert launched his first site Leave Your Daily Hell in 2009. Since then, he's expanded into destination niche sites (one each for Japan, Thailand and Taiwan), in addition to having written for the inflight magazines of Singapore Airlines and Korean Air. Overall, he's visited nearly 100 countries, and flies business as often as possible.

Read more
Emily Zemler

Emily Zemler

Expert on DEN

Emily Zemler

Emily Zemler

Emily is a freelance writer and book author based in London covering entertainment and travel. Her work has appeared in Los Angeles Times, Observer, and Conde Nast Traveler She has ventured to more than 40 countries and all seven continents, always in search of a great art museum. She has written extensively about hotels, luxury travel, and aviation.

Read more

Best time to book a flight from USA to Denver

Have a flexible travel schedule? Discover the best time to fly to Denver from USA 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 the United States to Denver

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

Currently, October is the cheapest month in which you can book a flight from USA to Denver (average of $197). Flying from USA 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 US to DEN?

Find hourly flight availability from USA 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 August 16, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from USA to Denver as you normally would.

Weekly flight availability from USA to Denver

Explore weekly flight availability from USA to Denver. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated August 16, 2025.

The most flights from US0 to DEN are scheduled on a Friday (92 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (24 on average).

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 August 16, 2025.
See what other customers who have flown with Southwest, Delta, and United Airlines from the United States to Denver have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,246 reviews

Food

7.0

Crew

8.6

Overall

8.0

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Southwest
8.0
Very good
4,246 reviews
Southwest
8.0
Very good
4,246 reviews

Food

7.0

Crew

8.6

Overall

8.0

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Delta
8.0
Very good
7,985 reviews
Southwest
8.0
Very good
4,246 reviews

Food

7.0

Crew

8.6

Overall

8.0

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
United Airlines
7.4
Good
8,916 reviews
Southwest
8.0
Very good
4,246 reviews

Food

7.0

Crew

8.6

Overall

8.0

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,246 reviews

Food

7.0

Crew

8.6

Overall

8.0

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Frontier
5.8
Fair
3,211 reviews
Southwest
8.0
Very good
4,246 reviews

Food

7.0

Crew

8.6

Overall

8.0

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.

Related info for your journey

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

  • What airport do you fly into for flights to Denver from United States?

    Most people fly into Denver Intl (DEN) if they book a flight to Denver from United States. Denver Intl is conveniently located just 18.5 mi from Denver’s city center.

  • How popular is this USA to Denver flight route?

    The United States to Denver Intl flight path was viewed by 393 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • What are the cheapest airlines to fly from USA to Denver one-way?

    The cheapest airline one-way is Frontier, with whom users have recently found tickets for as low as $63. However, be on the lookout for offers from Southwest and American Airlines, as they are both options that can get you from USA to Denver for a low price.

  • What are the most popular routes from USA to Denver?

    The most popular flight routes from USA to Denver are New York John F Kennedy Intl - Denver Intl, Dallas/Fort Worth - Denver Intl and New York LaGuardia - Denver Intl.

  • What are the most reliable airlines from USA to Denver?

    Consider Air France (86%), EL AL (85%) or Frontier (83%) when booking your flight. These represent the most reliable airlines when flying from USA to Denver.

  • What are the cheapest flights from USA to Denver?

    While on average a flight from USA to Denver is generally $650, our data shows the cheapest flight currently is $77. When looking at the most popular route, (New York John F Kennedy Intl - Denver Intl), you can expect to pay $173 for that flight.

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

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

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

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

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

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

    Currently, October is the cheapest month in which you can book a flight from USA to Denver (average of $197). Flying from USA 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
Greeley
Lone Tree
Lakewood
Cripple Creek
Silverthorne
Thornton
Broomfield
Frisco
Manitou Springs
Grand Lake
Fort Morgan
Glendale
Copper Mountain
Wheat Ridge
Brighton
Longmont

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for USA to Denver

See prices for flight routes from nearby airports that may be better suited for you.
John F Kennedy Intl to Denver flights
Dallas/Fort Worth to Denver flights
LaGuardia to Denver flights
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Top 9 airlines flying from USA to Denver

Discover the top 9 airlines that operate flights from USA 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 August 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$56Average$187FlexibilityNo cancel feeOn-time62%
Allegiant AirCheapest$88Average$100FlexibilityNo cancel feeOn-time88%
DeltaCheapest$110Average$317FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$116Average$326FlexibilityNo cancel feeOn-time75%
JetBlueCheapest$118Average$301FlexibilityNo cancel feeOn-time62%
Sun Country AirCheapest$130Average$307FlexibilityNo cancel feeOn-time83%
United AirlinesCheapest$136Average$354FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$137Average$286FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$147Average$306FlexibilityNo cancel feeOn-time71%

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