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$123+ Cheap flights from Jacksonville to Denver (JAX - 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 8/15. Fares are subject to change and may not be available on all flights or dates of travel.
JAX — DEN
Jul 2 — Jul 91
Thu 7/2
Thu 7/9
1 adult, Economy
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Find cheap flights from Jacksonville to Denver with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

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3. Compare prices and book

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Cheapflights Tip: The best prices from Jacksonville to Denver Intl are usually found in September or October, booked 76 days in advance, depart on a Wednesday or Tuesday and return on a Tuesday

Cheap flight deals from Jacksonville to Denver

Cheapest flights from Jacksonville to Denver
Explore the most affordable flight options available from Jacksonville to Denver. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 2, 2026.

This Frontier deal was found by Cheapflights users on 5/28. 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.
Mon 6/221:17 pm
JAX
-
DEN
1 stop11h 42m
Frontier
Wed 7/86:30 am
DEN
-
JAX
1 stop9h 04m
Frontier
Deal found 5/28$329
This Frontier deal was found by Cheapflights users on 5/28. 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 6/121:17 pm
JAX
-
DEN
1 stop11h 42m
Frontier
Tue 6/166:05 am
DEN
-
JAX
1 stop11h 11m
Frontier
Deal found 5/28$330
This Kiwi.com deal was found by Cheapflights users on 5/28. 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.
Thu 6/259:21 pm
JAX
-
DEN
1 stop20h 02m
Multiple Airlines
Sun 7/59:01 am
DEN
-
JAX
1 stop26h 59m
Multiple Airlines
Deal found 5/28$333
This Kiwi.com deal was found by Cheapflights users on 5/30. 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.
Sun 8/29:40 pm
JAX
-
DEN
2 stops36h 09m
Multiple Airlines
Tue 8/116:30 am
DEN
-
JAX
1 stop9h 04m
Multiple Airlines
Deal found 5/30$334
This Kiwi.com deal was found by Cheapflights users on 5/30. 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.
Tue 7/76:29 pm
JAX
-
DEN
1 stop29h 36m
Multiple Airlines
Wed 7/157:56 am
DEN
-
JAX
1 stop22h 37m
Multiple Airlines
Deal found 5/30$335
This Southwest deal was found by Cheapflights users on 5/29. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/56:15 am
JAX
-
DEN
1 stop5h 35m
Southwest
Sat 8/1511:15 am
DEN
-
JAX
Nonstop3h 15m
Southwest
Deal found 5/29$337
This Kiwi.com deal was found by Cheapflights users on 5/28. 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.
Tue 6/236:28 pm
JAX
-
DEN
2 stops22h 48m
Multiple Airlines
Sun 7/129:01 am
DEN
-
JAX
1 stop26h 59m
Multiple Airlines
Deal found 5/28$338
This Frontier deal was found by Cheapflights users on 5/30. 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 6/253:59 pm
JAX
-
DEN
1 stop9h 00m
Frontier
Wed 7/16:30 am
DEN
-
JAX
1 stop9h 03m
Frontier
Deal found 5/30$339
This Frontier deal was found by Cheapflights users on 5/31. 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.
Mon 6/89:45 pm
JAX
-
DEN
1 stop13h 39m
Frontier
Tue 6/236:30 am
DEN
-
JAX
1 stop9h 03m
Frontier
Deal found 5/31$340
This Delta deal was found by Cheapflights users on 5/29. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/1612:00 pm
JAX
-
DEN
1 stop7h 12m
Delta
Tue 9/226:00 am
DEN
-
JAX
1 stop8h 24m
Delta
Deal found 5/29$342
This Kiwi.com deal was found by Cheapflights users on 5/28. 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 6/266:28 pm
JAX
-
DEN
2 stops27h 07m
Multiple Airlines
Sun 7/129:01 am
DEN
-
JAX
1 stop26h 59m
Multiple Airlines
Deal found 5/28$343

Find flight deals from Jacksonville to Denver

Discover tips and strategies to find the most affordable flight options for your journey from Jacksonville (JAX) 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 June 2, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$329
(Frontier)

One-way from

$123
(Kiwi.com)

Popular in

December

Cheapest in

September

Average price

$503

Good round-trip deal

$459 or less

Good one-way deal

$238 or less
Provider with most accurate pricing for Jacksonville-Denver Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Jacksonville-Denver Intl flights.
Search Deals
From Jacksonville to Denver Intl
Search Deals
One-way flight from Jacksonville to Denver Intl
Search Deals
Highest demand for flights based on searches. 4% potential increase in price ($19 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($7 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 2026
Search Deals
Price to beat on a round-trip flight from Jacksonville to Denver Intl.
Search Deals
Price to beat on a one-way flight from Jacksonville to Denver Intl.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Jacksonville 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 June 2, 2026.
Use the filters below to find and compare flights from Jacksonville to Denver that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

JacksonvilleDenver

JAX - DEN

JAXDEN

Jacksonville

Tue 7/21

8:09 am-9:55 am

Nonstop3h 46m

Denver Intl

Mon 7/27

11:59 pm-10:50 am

1 stop8h 51m

$347
Quickest round-trip

JacksonvilleDenver

JAX - DEN

JAXDEN

Jacksonville

Tue 8/11

8:15 am-10:05 am

Nonstop3h 50m

Denver Intl

Wed 8/12

4:20 pm-9:46 pm

Nonstop3h 26m

$359

JacksonvilleDenver

JAX - DEN

JAXDEN

Jacksonville

Mon 7/13

8:09 am-9:55 am

Nonstop3h 46m

Denver Intl

Fri 7/17

3:35 pm-11:22 pm

1 stop5h 47m

$366

JacksonvilleDenver

JAX - DEN

JAXDEN

Jacksonville

Thu 9/10

8:15 am-10:05 am

Nonstop3h 50m

Denver Intl

Mon 9/14

4:20 pm-9:46 pm

Nonstop3h 26m

$388

JacksonvilleDenver

JAX - DEN

JAXDEN

Jacksonville

Sun 9/27

7:00 am-11:45 am

1 stop6h 45m

Denver Intl

Mon 9/28

5:15 am-1:25 pm

1 stop6h 10m

$410

JacksonvilleDenver

JAX - DEN

JAXDEN

Jacksonville

Fri 9/18

2:00 pm-7:55 pm

1 stop7h 55m

Denver Intl

Mon 9/21

5:15 am-1:25 pm

1 stop6h 10m

$428

JacksonvilleDenver

JAX - DEN

JAXDEN

Jacksonville

Fri 7/10

3:23 pm-5:07 pm

Nonstop3h 44m

Denver Intl

Mon 7/13

4:07 pm-9:40 pm

Nonstop3h 33m

$437

JacksonvilleDenver

JAX - DEN

JAXDEN

Jacksonville

Tue 7/7

4:48 pm-11:28 pm

1 stop8h 40m

Denver Intl

Wed 7/15

4:07 pm-9:40 pm

Nonstop3h 33m

$437

JacksonvilleDenver

JAX - DEN

JAXDEN

Jacksonville

Tue 7/14

4:55 pm-11:48 pm

1 stop8h 53m

Denver Intl

Wed 7/15

11:59 pm-10:42 am

1 stop8h 43m

$447

JacksonvilleDenver

JAX - DEN

JAXDEN

Jacksonville

Wed 8/12

8:15 am-10:05 am

Nonstop3h 50m

Denver Intl

Wed 8/19

6:00 am-6:02 pm

1 stop10h 02m

$459

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/1

Showing 1-10 of 22 resultsSorted by cheapest first
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3

Compare providers for flights from Jacksonville 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 Jacksonville to Denver in June.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
JustAirTicketPrice Accuracy-Trust Score*1 star
eDreamsPrice Accuracy2 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 Jacksonville-Denver flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Jacksonville-Denver flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Jacksonville-Denver flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Jacksonville-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 Jacksonville-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 Jacksonville to Denver

Have a flexible travel schedule? Discover the best time to fly to Denver from Jacksonville 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 Jacksonville to Denver

How far ahead should I book a flight from Jacksonville to Denver?

To ensure you get the cheapest price possible for a flight from Jacksonville to Denver, you should look to book at least 75 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Currently, September is the cheapest month in which you can book a flight from Jacksonville to Denver (average of $387). Flying from Jacksonville to Denver in December is currently the most expensive (average of $526). 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 JAX to DEN?

Find hourly flight availability from Jacksonville 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 June 2, 2026.

When flying from Jacksonville to Denver, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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

The best insider tips for Jacksonville to Denver flights

AI-powered summary based on content written by travel experts. AI can make mistakes.
Cheapflights partnered with top experts to bring you the best recommendations for your Jacksonville to Denver trip
Our travel experts
Matt Meltzer

Matt Meltzer

Expert on JAX

Matt Meltzer has been a travel writer for over a decade, covering U.S. domestic locations and hotels for Thrillist, Fifty Grande, Matador Network, Conde Nast Traveler, and other top publications. He's won multiple travel journalism awards from the Society of American Travel Writers and North American Travel Journalists Association, and currently resides in South Florida.

Read more
Emily Zemler

Emily Zemler

Expert on DEN

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

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 June 2, 2026.
See what other customers who have flown with Southwest,Delta, andUnited Airlines from Jacksonville 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
4,256 reviews

Boarding

8.1

Overall

8.0

Comfort

8.0

Crew

8.6

Entertainment

7.5

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
Southwest
8.0
Very good
4,256 reviews
Southwest
8.0
Very good
4,256 reviews

Boarding

8.1

Overall

8.0

Comfort

8.0

Crew

8.6

Entertainment

7.5

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
Delta
7.9
Good
8,397 reviews
Southwest
8.0
Very good
4,256 reviews

Boarding

8.1

Overall

8.0

Comfort

8.0

Crew

8.6

Entertainment

7.5

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
United Airlines
7.4
Good
9,778 reviews
Southwest
8.0
Very good
4,256 reviews

Boarding

8.1

Overall

8.0

Comfort

8.0

Crew

8.6

Entertainment

7.5

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
American Airlines
7.1
Good
11,639 reviews
Southwest
8.0
Very good
4,256 reviews

Boarding

8.1

Overall

8.0

Comfort

8.0

Crew

8.6

Entertainment

7.5

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
Frontier
5.6
Fair
2,922 reviews
Southwest
8.0
Very good
4,256 reviews

Boarding

8.1

Overall

8.0

Comfort

8.0

Crew

8.6

Entertainment

7.5

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.

Related info for your journey

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

  • What airports do I use to fly from Jacksonville to Denver?

    If you book a flight from Jacksonville to Denver, you will be flying from Jacksonville to Denver Intl. Flights to Denver Intl (DEN) from Jacksonville (JAX) take 3h 35m for a nonstop flight. There is 1 flight from Jacksonville to Denver per day from 6 airlines.

  • How popular is this Jacksonville to Denver flight route?

    This flight path from Jacksonville to Denver Intl was viewed by 49 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • How long is the flight from Jacksonville to Denver?

    Airlines like United Airlines and Southwest fly from Jacksonville to Denver in about 3h 46m. The time it takes to get you to your destination can typically vary by up to 2h 59m. There are 1444 mi between Jacksonville and Denver. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines flying from Jacksonville to Denver round-trip?

    Our cheapest airline available from Jacksonville to Denver is JetBlue. Our recent data shows that you can find tickets from as low as $122 on this airline. Additional options worth looking into are Frontier and American Airlines, starting at $138 and $200 round-trip. JetBlue is currently priced 73% below the average price you’ll pay for this route.

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

    $88 is the cheapest one-way deal found within the past few days, from Frontier. You may also be able to find cheap deals on United Airlines and American Airlines, with prices starting from $118 and $148, respectively.

  • What are the cheapest flights from Jacksonville to Denver?

    The cheapest flight price from Jacksonville to Denver is $205. On average you can expect to pay $734. The most popular route, (Jacksonville - Denver Intl), can usually be booked for $247.

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

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

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

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

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

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

    Currently, September is the cheapest month in which you can book a flight from Jacksonville to Denver (average of $387). Flying from Jacksonville to Denver in December is currently the most expensive (average of $526). 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
Westminster
Lakewood
Broomfield
Centennial
Golden
Greeley
Lone Tree
Wheat Ridge
Silverthorne
Central City
Cripple Creek
Winter Park
Manitou Springs
Frisco
Englewood
Fort Morgan
Glendale
Evergreen

Browse thousands of different options on Cheapflights for your next trip

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Top 6 airlines flying from Jacksonville to Denver

Discover the top 6 airlines that operate flights from Jacksonville 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 June 2, 2026.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest$122Average$368FlexibilityNo cancel feeOn-time62%
FrontierCheapest$138Average$259FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$200Average$400FlexibilityNo cancel feeOn-time71%
DeltaCheapest$216Average$384FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$285Average$494FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$287Average$473FlexibilityNo cancel feeOn-time63%

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