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$44+ Cheap flights from Denver (DEN) to the United States

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 11/13. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — LAX
Oct 15 — Oct 221
Wed 10/15
Wed 10/22
1 adult, Economy
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Cheap flight deals from Denver to USA

Keep the following information in mind while searching for Denver to USA flight deals. Data was last updated September 15, 2025.

Round-trip from

$87
(Cheapflightsfares)

One-way from

$44
(Kiwi.com)

Popular in

March

Cheapest in

October

Average price

$257

Good round-trip deal

$94 or less

Good one-way deal

$53 or less
From Denver Intl to USA
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One-way flight from Denver Intl to USA
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Highest demand for flights based on searches. 5% potential increase in price ($16 potential increase over avg. RT price).
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Cheapest flight prices on average. 0% potential price decrease ($2 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Price to beat on a round-trip flight from Denver Intl to USA.
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Price to beat on a one-way flight from Denver Intl to USA.
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Find flight deals from Denver to USA

Cheapest flights from Denver to USA
Explore the most affordable flight options available from Denver to USA. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 15, 2025.

This Frontier deal was found by Cheapflights users on 9/15. 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.
Wed 10/158:55 pmDEN - PHX
Nonstop2h 00mFrontier
Wed 10/227:30 pmPHX - DEN
Nonstop1h 56mFrontier
Deal found 9/15$86
This Frontier deal was found by Cheapflights users on 9/15. 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.
Wed 10/228:55 pmDEN - PHX
Nonstop2h 00mFrontier
Fri 10/249:59 pmPHX - DEN
Nonstop1h 57mFrontier
Deal found 9/15$87
This Frontier deal was found by Cheapflights users on 9/14. 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.
Fri 10/36:30 amDEN - PHX
Nonstop2h 02mFrontier
Sun 10/56:00 amPHX - DEN
Nonstop1h 58mFrontier
Deal found 9/14$88
This Frontier deal was found by Cheapflights users on 9/14. 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.
Sat 9/273:00 pmDEN - PHX
Nonstop2h 02mFrontier
Sat 10/45:07 pmPHX - DEN
Nonstop1h 56mFrontier
Deal found 9/14$89
This Frontier deal was found by Cheapflights users on 9/14. 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.
Fri 10/179:19 pmDEN - PHX
Nonstop1h 57mFrontier
Wed 10/2212:14 pmPHX - DEN
Nonstop2h 01mFrontier
Deal found 9/14$90
This Cheapflightsfares deal was found by Cheapflights users on 9/13. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/216:30 amDEN - PHX
Nonstop2h 02mFrontier
Sat 9/275:07 pmPHX - DEN
Nonstop1h 56mFrontier
Deal found 9/13$91
This Cheapflightsfares deal was found by Cheapflights users on 9/15. 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.
Thu 12/49:05 pmDEN - DFW
Nonstop2h 04mFrontier
Sun 12/76:00 amDFW - DEN
Nonstop2h 15mFrontier
Deal found 9/15$91
This Frontier deal was found by Cheapflights users on 9/14. 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.
Wed 10/18:55 pmDEN - PHX
Nonstop1h 58mFrontier
Mon 10/67:00 amPHX - DEN
Nonstop1h 59mFrontier
Deal found 9/14$92
This Kiwi.com deal was found by Cheapflights users on 9/12. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/39:58 pmDEN - PHX
Nonstop1h 56mFrontier
Sat 10/114:14 pmPHX - DEN
Nonstop1h 56mFrontier
Deal found 9/12$93
This Cheapflightsfares deal was found by Cheapflights users on 9/12. 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 10/24:14 pmDEN - PHX
Nonstop1h 59mFrontier
Tue 10/74:14 pmPHX - DEN
Nonstop1h 56mFrontier
Deal found 9/12$94
This Cheapflightsfares deal was found by Cheapflights users on 9/15. 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.
Sat 12/139:05 pmDEN - DFW
Nonstop2h 04mFrontier
Wed 1/78:55 amDFW - DEN
Nonstop2h 25mFrontier
Deal found 9/15$94
This eDestinos deal was found by Cheapflights users on 9/12. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/312:04 amDEN - LAS
1 stop16h 35mFrontier
Wed 10/812:59 amLAS - DEN
Nonstop2h 00mFrontier
Deal found 9/12$95

Cheapflights Fare Finder

 
Customize your flight search to find flights from Denver to USA 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 15, 2025.
Use the filters below to find and compare flights from Denver to the United States that are best for you.

Fly from

Denver

Fly to

USA

Route

Depart

Return

Price

DenverPhoenix

DEN - PHX

DENPHX

Denver Intl

Tue 10/14

7:25 am-8:25 am

Nonstop2h 00m

Phoenix Sky Harbor Intl

Tue 10/21

2:40 pm-5:25 pm

Nonstop1h 45m

$137

DenverLas Vegas

DEN - LAS

DENLAS

Denver Intl

Sat 11/8

7:40 pm-8:46 pm

Nonstop2h 06m

Las Vegas Harry Reid Intl

Mon 11/10

7:23 am-10:22 am

Nonstop1h 59m

$142

DenverLas Vegas

DEN - LAS

DENLAS

Denver Intl

Sat 11/8

10:45 am-11:45 am

Nonstop2h 00m

Las Vegas Harry Reid Intl

Mon 11/10

9:00 pm-11:50 pm

Nonstop1h 50m

$142

DenverSeattle

DEN - SEA

DENSEA

Denver Intl

Mon 3/2

11:30 am-3:39 pm

1 stop5h 09m

Seattle/Tacoma Intl

Tue 3/3

12:40 pm-4:24 pm

Nonstop2h 44m

$153

DenverNew York

DEN - LGA

DENLGA

Denver Intl

Sat 9/27

4:14 pm-10:11 pm

Nonstop3h 57m

New York LaGuardia

Mon 9/29

12:56 pm-11:13 pm

1 stop12h 17m

$153

DenverSeattle

DEN - SEA

DENSEA

Denver Intl

Sat 2/28

7:00 am-9:00 am

Nonstop3h 00m

Seattle/Tacoma Intl

Mon 3/2

5:30 am-10:32 am

1 stop4h 02m

$153

DenverLas Vegas

DEN - LAS

DENLAS

Denver Intl

Sat 12/6

6:59 pm-10:27 pm

1 stop4h 28m

Las Vegas Harry Reid Intl

Tue 12/9

7:25 am-7:24 pm

1 stop10h 59m

$156

DenverChicago

DEN - ORD

DENORD

Denver Intl

Wed 12/3

6:00 am-9:40 am

Nonstop2h 40m

Chicago O'Hare Intl

Mon 12/8

8:07 pm-9:56 pm

Nonstop2h 49m

$157

DenverChicago

DEN - ORD

DENORD

Denver Intl

Thu 10/16

4:45 pm-8:25 pm

Nonstop2h 40m

Chicago O'Hare Intl

Mon 10/20

9:44 pm-11:30 pm

Nonstop2h 46m

$157

DenverNew York

DEN - LGA

DENLGA

Denver Intl

Thu 9/25

8:11 am-8:59 pm

1 stop10h 48m

New York LaGuardia

Mon 9/29

10:56 pm-1:04 am

Nonstop4h 08m

$158

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/13

Showing 1-10 of 60 results
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Best time to book a flight from Denver to USA

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

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

Currently, January is the cheapest month in which you can book a flight from Denver to USA (average of $246). Flying from Denver to USA in March is currently the most expensive (average of $325). 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 DEN to US?

Find hourly flight availability from Denver to USA. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 15, 2025.

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

Weekly flight availability from Denver to USA

Explore weekly flight availability from Denver to USA. 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 September 15, 2025.

The most flights from DEN to US0 are scheduled on a Monday (102 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (50 on average).

Reviews of airlines servicing USA

Get insights into the airlines that provide service to USA. 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 USA. Reviews last updated September 15, 2025.
Read reviews from past customers who have flown Southwest, Delta, and United Airlines from Denver to the United States. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,242 reviews

Crew

8.6

Overall

8.0

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Southwest
8.0
Very good
4,242 reviews
Southwest
8.0
Very good
4,242 reviews

Crew

8.6

Overall

8.0

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Delta
8.0
Very good
7,954 reviews
Southwest
8.0
Very good
4,242 reviews

Crew

8.6

Overall

8.0

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
United Airlines
7.4
Good
8,929 reviews
Southwest
8.0
Very good
4,242 reviews

Crew

8.6

Overall

8.0

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,242 reviews

Crew

8.6

Overall

8.0

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Frontier
5.8
Fair
3,172 reviews
Southwest
8.0
Very good
4,242 reviews

Crew

8.6

Overall

8.0

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

Related info for your journey

Find useful and relevant information for your journey from Denver to USA. 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 from for flights from Denver to United States?

    For a flight from Denver to United States, you will be flying from Denver Intl. Denver Intl (DEN) is just 18.5 mi from the center of the city.

  • How popular is this Denver to USA flight route?

    Flights from Denver Intl to United States have been viewed 363 times in the past calendar month.

  • How long is the flight from Denver to USA?

    A quick flight from Denver to USA can take about 2h. Southwest provides one of the quickest options available for as low as $137. The distance between Denver and USA is about 601 mi. This flight may include one or multiple stops.

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

    The cheapest airlines for a one-way flight from Denver to USA are Alaska Airlines ($68), Southwest ($69), and United Airlines ($69).

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

    The most popular route from Denver to USA is Denver Intl - Las Vegas Harry Reid Intl. You may also consider Denver Intl - Seattle/Tacoma Intl or Denver Intl - New York LaGuardia.

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

    The top 3 most reliable airlines when flying from Denver to USA are WestJet (95%), Qatar Airways (94%) and Avianca (88%).

  • What are the cheapest flights from Denver to USA?

    Looking for the cheapest flight from Denver to USA? While on average our users pay $734, our data indicates the cheapest price to be $59. The most popular route (Denver Intl - Las Vegas Harry Reid Intl), is priced around $103.

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from Denver to USA (average of $246). Flying from Denver to USA in March is currently the most expensive (average of $325). 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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Alternative routes for Denver to USA

See prices for flight routes from nearby airports that may be better suited for you.
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Denver to Seattle flights
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Top 8 airlines flying from Denver to USA

Discover the top 8 airlines that operate flights from Denver to USA. 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 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$58Average$200FlexibilityNo cancel feeOn-time62%
DeltaCheapest$88Average$300FlexibilityNo cancel feeOn-timeN/A
JetBlueCheapest$127Average$299FlexibilityNo cancel feeOn-time62%
SouthwestCheapest$138Average$311FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$140Average$356FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$144Average$282FlexibilityNo cancel feeOn-time71%
Sun Country AirCheapest$168Average$320FlexibilityNo cancel feeOn-time83%
Alaska AirlinesCheapest$229Average$566FlexibilityNo cancel feeOn-time75%

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