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$92+ 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 9/21. Fares are subject to change and may not be available on all flights or dates of travel.
JAX — DEN
Jul 26 — Aug 21
Sun 7/26
Sun 8/2
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”

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Cheapflights Tip: The best prices from Jacksonville to Denver Intl are usually found in October or September, 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 26, 2026.

This Kiwi.com deal was found by Cheapflights users on 6/21. 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.
Sat 7/116:29 pm
JAX
-
DEN
2 stops16h 25m
Frontier
Thu 7/166:30 am
DEN
-
JAX
1 stop9h 04m
Frontier
Deal found 6/21$332
This Kiwi.com deal was found by Cheapflights users on 6/21. 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.
Sat 7/186:29 pm
JAX
-
DEN
1 stop16h 34m
Multiple Airlines
Fri 7/249:06 pm
DEN
-
JAX
2 stops16h 58m
Multiple Airlines
Deal found 6/21$334
This Kiwi.com deal was found by Cheapflights users on 6/21. 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.
Sat 7/119:38 pm
JAX
-
DEN
2 stops35h 35m
Multiple Airlines
Sun 7/196:30 am
DEN
-
JAX
1 stop9h 04m
Multiple Airlines
Deal found 6/21$335
This Kiwi.com deal was found by Cheapflights users on 6/21. 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 stop16h 34m
Frontier
Mon 7/136:30 am
DEN
-
JAX
1 stop9h 04m
Frontier
Deal found 6/21$338
This Kiwi.com deal was found by Cheapflights users on 6/21. 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.
Mon 7/66:29 pm
JAX
-
DEN
1 stop16h 34m
Frontier
Mon 7/139:58 am
DEN
-
JAX
1 stop5h 36m
Frontier
Deal found 6/21$339
This Kiwi.com deal was found by Cheapflights users on 6/21. 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 stop16h 34m
Frontier
Fri 7/179:58 am
DEN
-
JAX
1 stop5h 36m
Frontier
Deal found 6/21$340
This Kiwi.com deal was found by Cheapflights users on 6/21. 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.
Mon 7/66:29 pm
JAX
-
DEN
1 stop16h 34m
Frontier
Fri 7/179:58 am
DEN
-
JAX
1 stop5h 36m
Frontier
Deal found 6/21$341
This Kiwi.com deal was found by Cheapflights users on 6/21. 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 stop16h 34m
Frontier
Sun 7/126:30 am
DEN
-
JAX
1 stop9h 04m
Frontier
Deal found 6/21$342
This Kiwi.com deal was found by Cheapflights users on 6/21. 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 7/99:32 pm
JAX
-
DEN
1 stop19h 51m
Multiple Airlines
Thu 7/169:58 am
DEN
-
JAX
1 stop5h 36m
Multiple Airlines
Deal found 6/21$343
This Kiwi.com deal was found by Cheapflights users on 6/21. 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
2 stops15h 45m
Frontier
Sat 7/116:30 am
DEN
-
JAX
1 stop9h 04m
Frontier
Deal found 6/21$344
This Southwest deal was found by Cheapflights users on 6/25. 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.
Mon 7/205:20 pm
JAX
-
DEN
Nonstop3h 30m
Southwest
Mon 7/276:35 am
DEN
-
JAX
1 stop5h 35m
Southwest
Deal found 6/25$347

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 26, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$332
(Kiwi.com)

One-way from

$92
(Kiwi.com)

Popular in

December

Cheapest in

October

Average price

$512

Good round-trip deal

$414 or less

Good one-way deal

$240 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. 3% potential increase in price ($15 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($6 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 26, 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

Wed 9/16

8:15 am-10:05 am

Nonstop3h 50m

Denver Intl

Mon 9/21

6:00 am-6:02 pm

1 stop10h 02m

$359

JacksonvilleDenver

JAX - DEN

JAXDEN

Jacksonville

Wed 8/12

4:45 pm-11:53 pm

1 stop9h 08m

Denver Intl

Fri 8/21

10:05 am-3:33 pm

Nonstop3h 28m

$361

JacksonvilleDenver

JAX - DEN

JAXDEN

Jacksonville

Thu 7/30

5:20 pm-6:50 pm

Nonstop3h 30m

Denver Intl

Wed 8/5

6:00 am-12:55 pm

1 stop4h 55m

$373

JacksonvilleDenver

JAX - DEN

JAXDEN

Jacksonville

Sun 8/16

1:45 pm-3:20 pm

Nonstop3h 35m

Denver Intl

Thu 8/20

8:05 am-5:05 pm

1 stop7h 00m

$377

JacksonvilleDenver

JAX - DEN

JAXDEN

Jacksonville

Wed 7/22

8:09 am-9:55 am

Nonstop3h 46m

Denver Intl

Thu 7/23

1:30 pm-11:20 pm

1 stop7h 50m

$378

JacksonvilleDenver

JAX - DEN

JAXDEN

Jacksonville

Sat 7/18

7:15 pm-11:10 pm

1 stop5h 55m

Denver Intl

Sat 7/25

6:25 pm-11:55 pm

Nonstop3h 30m

$386

JacksonvilleDenver

JAX - DEN

JAXDEN

Jacksonville

Mon 8/10

3:23 pm-5:07 pm

Nonstop3h 44m

Denver Intl

Wed 8/12

6:00 am-8:54 pm

2 stops12h 54m

$410

JacksonvilleDenver

JAX - DEN

JAXDEN

Jacksonville

Fri 7/31

3:23 pm-5:07 pm

Nonstop3h 44m

Denver Intl

Tue 8/4

11:59 pm-10:50 am

1 stop8h 51m

$413

JacksonvilleDenver

JAX - DEN

JAXDEN

Jacksonville

Wed 8/19

5:00 pm-10:15 pm

1 stop7h 15m

Denver Intl

Mon 8/24

6:00 am-8:54 pm

2 stops12h 54m

$420

JacksonvilleDenver

JAX - DEN

JAXDEN

Jacksonville

Sat 8/8

4:55 pm-11:49 pm

1 stop8h 54m

Denver Intl

Thu 8/20

6:00 am-2:04 pm

1 stop6h 04m

$431

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/22

Showing 1-10 of 21 resultsSorted by cheapest first
1
2
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, October is the cheapest month in which you can book a flight from Jacksonville to Denver (average of $391). Flying from Jacksonville to Denver in December is currently the most expensive (average of $520). 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 26, 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 26, 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
7.9
Good
4,245 reviews

Comfort

8.0

Overall

7.9

Food

7.0

Entertainment

7.5

Boarding

8.1

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
Southwest
7.9
Good
4,245 reviews
Southwest
7.9
Good
4,245 reviews

Comfort

8.0

Overall

7.9

Food

7.0

Entertainment

7.5

Boarding

8.1

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
Delta
7.8
Good
8,453 reviews
Southwest
7.9
Good
4,245 reviews

Comfort

8.0

Overall

7.9

Food

7.0

Entertainment

7.5

Boarding

8.1

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
United Airlines
7.4
Good
9,893 reviews
Southwest
7.9
Good
4,245 reviews

Comfort

8.0

Overall

7.9

Food

7.0

Entertainment

7.5

Boarding

8.1

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
American Airlines
7.1
Good
11,768 reviews
Southwest
7.9
Good
4,245 reviews

Comfort

8.0

Overall

7.9

Food

7.0

Entertainment

7.5

Boarding

8.1

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
Frontier
5.6
Fair
2,864 reviews
Southwest
7.9
Good
4,245 reviews

Comfort

8.0

Overall

7.9

Food

7.0

Entertainment

7.5

Boarding

8.1

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

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 50 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 30m. The time it takes to get you to your destination is usually consistent. There are 1444 mi between Jacksonville and Denver. Generally, flights for this route are nonstop.

  • 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 American Airlines and United Airlines, with prices starting from $91 and $121, respectively.

  • What are the cheapest flights from Jacksonville to Denver?

    The cheapest flight price from Jacksonville to Denver is $200. On average you can expect to pay $1,027. The most popular route, (Jacksonville - Denver Intl), can usually be booked for $226.

  • 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, October is the cheapest month in which you can book a flight from Jacksonville to Denver (average of $391). Flying from Jacksonville to Denver in December is currently the most expensive (average of $520). 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
Centennial
Lakewood
Broomfield
Golden
Greeley
Lone Tree
Wheat Ridge
Silverthorne
Central City
Fort Morgan
Cripple Creek
Winter Park
Manitou Springs
Frisco
Englewood
Glendale
Evergreen

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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 26, 2026.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest$122Average$446FlexibilityNo cancel feeOn-time62%
FrontierCheapest$138Average$268FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$200Average$399FlexibilityNo cancel feeOn-time71%
DeltaCheapest$216Average$384FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$287Average$473FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$295Average$492FlexibilityNo cancel feeOn-time69%

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