OAJ - DEN

$289 Find Cheap Flights from Jacksonville to Denver

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Jacksonville to Denver departing on 7/29. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Denver

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Jacksonville to Denver, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Jacksonville to Denver, as well as popular online travel agencies
Travelers love KAYAK
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Everything you should know

Cheapest round-trip
$454
Overall average: $313
Delta
Fri 4/17Mon 4/20
OAJ - DEN • 1 stop
Cheapest one-way
$289
Delta
Wed 7/29
OAJ - DEN • 1 stop
Top airlines
Delta
Cheapest • from $454 (round-trip)
Delta
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to travel
January
Cheapest • 55% price drop
July
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Denver!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Jacksonville to Denver (OAJ-DEN)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Jacksonville to Denver that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Jacksonville to Denver

Fri, Apr 17 - Mon, Apr 20
Delta Logo
6:49 pm - 12:33 am
OAJ
-
DEN
7h 44m
1 stop
Delta Logo
6:00 am - 1:40 pm
DEN
-
OAJ
5h 40m
1 stop
$454Delta
Fri, Apr 17 - Mon, Apr 20
American Airlines Logo
5:10 am - 1:49 pm
OAJ
-
DEN
10h 39m
2 stops
American Airlines Logo
11:59 pm - 9:49 am
DEN
-
OAJ
7h 50m
1 stop
$459American Airlines
Thu, May 14 - Sun, May 17
Delta Logo
6:47 pm - 11:51 pm
OAJ
-
DEN
7h 04m
1 stop
Delta Logo
12:59 am - 11:06 am
DEN
-
OAJ
8h 07m
1 stop
$468Delta
Wed, Feb 25 - Sun, Mar 1
Delta Logo
4:00 pm - 9:14 pm
OAJ
-
DEN
7h 14m
1 stop
Delta Logo
12:59 am - 11:07 am
DEN
-
OAJ
8h 08m
1 stop
$494Delta
Wed, Feb 25 - Mon, Mar 2
American Airlines Logo
2:03 pm - 10:40 pm
OAJ
-
DEN
10h 37m
2 stops
American Airlines Logo
4:03 pm - 11:55 pm
DEN
-
OAJ
5h 52m
1 stop
$499American Airlines
Fri, Jul 17 - Fri, Jul 24
Delta Logo
6:25 pm - 11:45 pm
OAJ
-
DEN
7h 20m
1 stop
Delta Logo
12:59 am - 11:14 am
DEN
-
OAJ
8h 15m
1 stop
$509Delta
Fri, Feb 20 - Tue, Feb 24
Delta Logo
2:15 pm - 9:14 pm
OAJ
-
DEN
8h 59m
1 stop
Delta Logo
6:00 am - 2:47 pm
DEN
-
OAJ
6h 47m
1 stop
$525Delta
Fri, Apr 17 - Mon, Apr 20
American Airlines Logo
5:10 am - 1:49 pm
OAJ
-
DEN
10h 39m
2 stops
American Airlines Logo
9:18 am - 11:57 pm
DEN
-
OAJ
12h 39m
2 stops
$530American Airlines
Fri, Apr 17 - Mon, Apr 20
American Airlines Logo
1:27 pm - 9:59 pm
OAJ
-
DEN
10h 32m
2 stops
American Airlines Logo
10:28 am - 11:57 pm
DEN
-
OAJ
11h 29m
2 stops
$535American Airlines
Wed, Feb 25 - Mon, Mar 2
American Airlines Logo
2:03 pm - 10:40 pm
OAJ
-
DEN
10h 37m
2 stops
American Airlines Logo
10:20 am - 11:55 pm
DEN
-
OAJ
11h 35m
2 stops
$547American Airlines
Booking Insights

KAYAK's insights & trends for Jacksonville to Denver flights

Get data-powered insights and trends into flights from Jacksonville to Denver to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from Jacksonville to Denver?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Jacksonville to Denver, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Jacksonville to Denver is January, where tickets cost $223 (return) on average. On the other hand, the most expensive months are November and February, where the average cost of round-trip tickets is $836 and $727 respectively.

Good to know

Low seasonJanuary
Cheapest flight$289
Best time to beat the crowds with an average 56% drop in price.
Most popular time to fly with an average 16% increase in price.
Flight from Jacksonville to Denver

When to book flights from Jacksonville to Denver

Are your dates flexible? Find out the best times to travel from Jacksonville to Denver based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Jacksonville to Denver

  • What is the cheapest flight from Jacksonville to Denver?

    In the last 3 days, the lowest price for a flight from Jacksonville to Denver was $289 for a one-way ticket and $454 for a round-trip.

  • Do I need a passport to fly between Jacksonville and Denver?

    No

  • Which airports will I be using when flying from Jacksonville to Denver?

    On your way to Denver, you’ll fly out from Jacksonville Albert J Ellis. You’ll be landing at Denver Intl.

  • Which aircraft models fly most regularly from Jacksonville to Denver?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Jacksonville to Denver?

    SkyTeam, and oneworld are the airline alliances operating flights between Jacksonville and Denver, with SkyTeam being the most commonly used for this route.

  • Which is the best airline for flights from Jacksonville to Denver, Delta or American Airlines?

    The two airlines most popular with KAYAK users for flights from Jacksonville to Denver are Delta and American Airlines. With an average price for the route of $434 and an overall rating of 7.9, Delta is the most popular choice. American Airlines is also a great choice for the route, with an average price of $484 and an overall rating of 7.2.

  • How does KAYAK find such low prices on flights from Jacksonville to Denver?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Jacksonville to Denver.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Jacksonville to Denver?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Denver from Jacksonville is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Jacksonville to Denver?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Denver with an airline and back to Jacksonville with another airline. Booking your flights between Jacksonville and DEN can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Jacksonville to Denver?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Denver from Jacksonville up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airlines flying from Jacksonville to Denver

 
See real verified KAYAK customer reviews for airlines flying from Jacksonville to Denver. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Jacksonville to Denver? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.9
DeltaOverall score based on 8162 reviews
8.5Crew
7.9Comfort
7.8Entertainment
7.2Food
8.1Boarding
Airline reviews

First class and monitors weren’t working for mine & my husbands. Eventually fixed, but quite annoyed as we bought first class. Also, No foot rests.

6.0 GoodAnonymous, Feb 2026
SEA - OGG
Read more Delta reviews

First class and monitors weren’t working for mine & my husbands. Eventually fixed, but quite annoyed as we bought first class. Also, No foot rests.

Prior to takeoff, the pilot told us there was a possibility of not being able to land and going to Portland. Well that happened, we took off and then did 8 loops around Spokane before the pilot told us we ran out of fuel and had to go to Portland. So for a 35 minute flight we have now been on the plane for 3 hours (boarded at 6:50 am and landed in Portland at 10:30). Then, we just sat in Portland's airport with no updates of when we can start heading back. All of a sudden, our pilots and crew just left, leaving us stranded in a different city and state. We continued to sit in Portland until we finally got a new crew assigned and boarded the plane (This was from 10:30-2). We then sat on the plane for an additional hour before take off because they had to count us multiple times. We finally landed in Spokane at 3:55 PM. So a flight that should have taken at max an hour took us 10 hours and we missed the majority of the recruiting event we went for.

It was delayed but other than that it was great.

Got on the plane and sat there for an hour before departure.

Second flight in a row where the entertainment system is broken. 5 hour long flight with no entertainment and flight attendants did not seem interested in resolving the matter. Very shocked to be treated this poorly considering I paid for a first class experience and have Diamond Medallion status.

They double booked seats, the gate staff changed my ticket as I was boarding she went over to the computer and changed it without telling me. She messed up an entire three row section for me and others. Other travelers were outraged but the gate staff were so rude, so condescending saying it wasn't their problem to solve. I would rate this a zero if I could. Will not fly Delta again I'll stick with United and American.

Comfort seating was on the tight side. Maybe it was a smaller plane(?)

I didn't take this flight. I changed the flight. Why am I getting surveys and notifications on flights that I change. Seems like a defect with Kayak.

Delta One is extraordinary. I fly business when somebody hires me. I just wonder why there is such a chasm between business class and the insanely inhumane and nonsensical coach. The seats are not large enough to fit even my tiny wife. We fly 10% of what we did because we don’t want to pay 5-10 k but for $400 it’s unbearable. It seems like the accountants took over and made stupid decisions. Screw in 20 extra seats and make it so unbearable that people fly 90% less. Just put the damn price up and put some proper chairs in. But business, yay.

Timing, quality of service, promptness and courtesy of the staff

Flight was smooth, quick and felt safe. The 2 delays not happening would have been better but I guess that happens in the airline industry

Don't change gate multiple times make people run across the airport. Announce delays in a timely manner. Have maintenance crew ready. Don't delay and keep passengers on the plane for 3 hrs. on tarmac.

The flight attendant use 1.5 hours to answer my call. My dirty food tray was unattended.

2 hour delay due to equipment failure. No updates via the app and airport screens (which continued to show a departure time in the past). AA eventually switched planes and the new plane was not catered or cleaned correctly.

Could we please end the loud announcements about credit card offers on your flights? We are trying to sleep, work, watch videos, etc. and if we need a credit card, we will ask for one. Flying is already not what it used to be.

My seat tv didn’t work the whole trip. And the seat space is too small despite being seated at the front.

Bags took over and hour to come out. Delays due to wind caused rebooking.

Lower WiFi prices; allow us to see our flight on a map; more variety of drink choices.

Flight was on time is the only good thing. Person loading the plane called 1-6 to board at the same time, made it chaotic. Plane was too small for even putting backpacks in overhead. Seat for normal sized people were too small. The WIFI didn't work. When we landed had to wait because not enough ground crew.

Did not understand a single word the attendant said on the pa system. I was glad it was not an emergency.

Everything you need to know for your flight from Jacksonville to Denver

Information on your arrival and departure airports