OAJ - DEN

$421 Find Cheap Flights from Jacksonville to Denver - Compare and Save

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Jacksonville to Denver departing on 9/26. 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
41,299,237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest round-trip
$421
Typical prices: $296-$367
Delta
Sat 9/26Wed 9/30
OAJ - DEN • 1 stop
Cheapest one-way
$594
American Airlines
Sun 7/19
OAJ - DEN • 1 stop
Top airlines
Cheapest • from $421 (round-trip)
Best reviews • 7.8 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Jacksonville and Denver. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $528 (round-trip)
Shortest trip • 6h 41m (one-way)
Insights
Insights
Insights
Insights
When to travel
Cheapest • 100% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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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

Sat, Sep 26 - Wed, Sep 30
Delta Logo
4:02 pm - 9:07 pm
OAJ
-
DEN
7h 05m
1 stop
Delta Logo
12:10 pm - 10:22 pm
DEN
-
OAJ
8h 12m
1 stop
$421Delta
Sat, Sep 26 - Wed, Sep 30
American Airlines Logo
1:52 pm - 7:09 pm
OAJ
-
DEN
7h 17m
1 stop
American Airlines Logo
9:03 am - 10:40 pm
DEN
-
OAJ
11h 37m
2 stops
$488American Airlines
Fri, Jul 17 - Tue, Jul 21
Delta Logo
6:44 pm - 12:23 am
OAJ
-
DEN
7h 39m
1 stop
Delta Logo
5:45 am - 3:54 pm
DEN
-
OAJ
8h 09m
1 stop
$494Delta
Mon, Jul 27 - Mon, Aug 10
American Airlines Logo
6:11 pm - 11:09 pm
OAJ
-
DEN
6h 58m
1 stop
American Airlines Logo
11:59 pm - 9:53 am
DEN
-
OAJ
7h 54m
1 stop
$506American Airlines
Mon, Jul 27 - Tue, Jul 28
Delta Logo
12:05 pm - 5:56 pm
OAJ
-
DEN
7h 51m
1 stop
Delta Logo
2:10 pm - 10:29 pm
DEN
-
OAJ
6h 19m
1 stop
$519Delta
Fri, Jul 31 - Mon, Aug 3
American Airlines Logo
6:11 pm - 11:09 pm
OAJ
-
DEN
6h 58m
1 stop
American Airlines Logo
11:59 pm - 8:28 am
DEN
-
OAJ
6h 29m
1 stop
$527American Airlines
Sat, Sep 26 - Wed, Sep 30
American Airlines Logo
1:52 pm - 10:34 pm
OAJ
-
DEN
10h 42m
2 stops
American Airlines Logo
9:03 am - 10:40 pm
DEN
-
OAJ
11h 37m
2 stops
$555American Airlines
Mon, Jul 27 - Mon, Aug 10
American Airlines Logo
1:14 pm - 9:32 pm
OAJ
-
DEN
10h 18m
2 stops
American Airlines Logo
6:15 am - 3:06 pm
DEN
-
OAJ
6h 51m
1 stop
$600American Airlines
Fri, Jul 31 - Mon, Aug 3
American Airlines Logo
3:07 pm - 11:50 pm
OAJ
-
DEN
10h 43m
2 stops
American Airlines Logo
11:59 pm - 8:28 am
DEN
-
OAJ
6h 29m
1 stop
$621American Airlines
Fri, Jul 17 - Tue, Jul 21
American Airlines Logo
3:07 pm - 11:50 pm
OAJ
-
DEN
10h 43m
2 stops
American Airlines Logo
11:59 pm - 8:28 am
DEN
-
OAJ
6h 29m
1 stop
$658American 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 $0 (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 seasonSeptember
Cheapest flight$421
Best time to beat the crowds with an average 34% drop in price.
Most popular time to fly and prices are also 34% lower on average.
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 5 days, the lowest price for a flight from Jacksonville to Denver was $594 for a one-way ticket and $421 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 $432 and an overall rating of 7.8, 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 7.1.

  • 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.
7.8
DeltaOverall score based on 8451 reviews
8.1Boarding
8.5Crew
7.8Entertainment
7.2Food
7.8Comfort
Airline reviews

Gate agent showed up 20 minutes before boarding and was not at all friendly. Had to take this flight due to the one on the day before being cancelled and any later options were already full with long standby lists. Despite having paid for Delta Comfort seats, Delta did not allow me (or anyone) to choose their seat. The agent assigned them for everyone just prior to boarding. Self seat selection was allowed on the original flight. Flight staff was great - very friendly.

2.0 MediocreAnonymous, Jun 2026
RDU - LGA
Read more Delta reviews

Gate agent showed up 20 minutes before boarding and was not at all friendly. Had to take this flight due to the one on the day before being cancelled and any later options were already full with long standby lists. Despite having paid for Delta Comfort seats, Delta did not allow me (or anyone) to choose their seat. The agent assigned them for everyone just prior to boarding. Self seat selection was allowed on the original flight. Flight staff was great - very friendly.

Two delays on two separate planes with parts they could not easily find and replace.

Smooth flight. Left on time, and got in 15 minutes early. Onboard video was great

Flight was canceled, and no effort was made to help with rebooking, no hotel vouchers, no car transportation and minimal food voucher and most places for food were closed by the time the voucher was given. Waited for 3 hours for bags. Simply the worst travel experience I have ever had

My flight was 6 pm 6/6. Every hour they delayed it again - air condition issues then no pilot then the crew had worked too many hours and cancelled the flight at 11 pm. Sent customers to NJ a 45 minutes uber ride to a hotel. Had to be back by 5 am for a 7 am flight and again no pilot etc with another three hours of delays.

Delta flight was on time, seats were comfortable, and crew was nice.

Airline lost my luggage and set me back a day worth of travel due to having to stay in Denver to wait on my luggage

I'm a larger, athletic guy (6'2", 260lbs powerlifter) and I found the seats incredibly uncomfortable with minimal leg room, especially in a window seat. Now, I full understand that being smaller may change my view but even if I was 80lbs less, my legs would be the same size and I was sandwiched between my seat and the seat in front of me.

The helpful attitude of the staff, and being a wheelchair passenger everyone was helpful and understanding. The trip was made comfortable by the upgraded seat which was given without my request, that was a great surprise. Thank you Delta.

The flight attendants were friendly and seemed to like their jobs. I am not a high maintenance person, but they seemed to respond to people's needs and requests in a timely fashion with a smile.. I appreciate the benefits of complimentary snacks and beverages, as well as the relatively inexpensive checked baggage fee. (Although I would like it better if it were free! :) ) The only improvement that could be made to make the boarding process more efficient is to board the plane from the back. The alternative would be to board people with only a personal item first. This would reduce the wait time while others are stowing their baggage.

Everything was delayed and the staff sent me to the wrong gate, causing me to miss one of my flights. I arrived at my destination 6 hours later than I was supposed to.

On the return flight, arriving in Denver we sat on the tarmac in Denver for over 20 minutes.

The flight was fine. It's the satellite terminal that supports American eagle flights is what sucks. There is only one food option and everything there is way overpriced. I mean I know it's airport pricing, but it's even crazier than that. I bought a sandwich in a plastic container for $18.

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.

Our bags took a long time to get unloaded once we landed.

Terrible. The flight was delayed two hours due to weather. Then when we got on the plane, the first pilot ended up timing out and we had to wait for a second pilot. Second pile came on board and we tax it out. Had to return back to the gate because of an unruly passenger. Then the copilot timed out. Had to wait for new copilot. Also had to wait for maintenance to check for fuel. Then found out the second pilot timed out and we had to wait for a third pilot. Was ready to go and then needed maintenance again for another issue. In the end, it was 2 o’clock in the morning when they announced that the flight couldn’t go because the third pilot and the second copilot had timed out.

One of the best flights I’ve had. So smooth.

Because I can’t stand very long in one place, I was allowed to reword.

Flight to Phoenix was delayed 1 hour and was not weather related. Flight Denver was delayed 2.5 hours and again was not weather related as the plane came from San Francisco.

Flight was late because our pilots were late. Also the air vents above our seat didn't work.

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

Information on your arrival and departure airports