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£148 Cheap Flights from Denver (DEN) to Jacksonville (JAX)

View £148 flight on Tue, 1 Sept 2026Opens in a new window

Popular airlines from Denver International Airport (DEN) to Jacksonville International Airport (JAX)

Cheap Flights from Denver (DEN) to Jacksonville (JAX)

Prices were available within the past 7 days and start at £148 for one-way flights and £412 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

JetBlue Airways
Mon, 31 Aug - Sun, 6 Sept
DEN
Denver
JAX
Jacksonville
£412 Return, found 4 days ago
£412
Return
found 4 days ago
Select JetBlue Airways flight, departing Mon, 31 Aug from Denver to Jacksonville, returning Sun, 6 Sept, priced at £412 found 4 days ago
JetBlue Airways
Mon, 31 Aug - Sun, 6 Sept
DEN
Denver
JAX
Jacksonville
£417 Return, found 4 days ago
£417
Return
found 4 days ago
Select JetBlue Airways flight, departing Mon, 31 Aug from Denver to Jacksonville, returning Sun, 6 Sept, priced at £417 found 4 days ago
JetBlue Airways
Mon, 31 Aug - Sun, 6 Sept
DEN
Denver
JAX
Jacksonville
£511 Return, found 4 days ago
£511
Return
found 4 days ago
Select JetBlue Airways flight, departing Mon, 31 Aug from Denver to Jacksonville, returning Sun, 6 Sept, priced at £511 found 4 days ago
JetBlue Airways
Mon, 31 Aug - Sun, 6 Sept
DEN
Denver
JAX
Jacksonville
£515 Return, found 4 days ago
£515
Return
found 4 days ago
Select JetBlue Airways flight, departing Mon, 31 Aug from Denver to Jacksonville, returning Sun, 6 Sept, priced at £515 found 4 days ago
JetBlue Airways
Mon, 31 Aug - Sun, 6 Sept
DEN
Denver
JAX
Jacksonville
£628 Return, found 4 days ago
£628
Return
found 4 days ago
Select JetBlue Airways flight, departing Mon, 31 Aug from Denver to Jacksonville, returning Sun, 6 Sept, priced at £628 found 4 days ago
JetBlue Airways
Fri, 14 Aug - Tue, 25 Aug
DEN
Denver
JAX
Jacksonville
£629 Return, found 1 day ago
£629
Return
found 1 day ago
Select JetBlue Airways flight, departing Fri, 14 Aug from Denver to Jacksonville, returning Tue, 25 Aug, priced at £629 found 1 day ago
JetBlue Airways
Mon, 31 Aug - Sun, 6 Sept
DEN
Denver
JAX
Jacksonville
£632 Return, found 4 days ago
£632
Return
found 4 days ago
Select JetBlue Airways flight, departing Mon, 31 Aug from Denver to Jacksonville, returning Sun, 6 Sept, priced at £632 found 4 days ago
JetBlue Airways
Fri, 14 Aug - Tue, 25 Aug
DEN
Denver
JAX
Jacksonville
£650 Return, found 1 day ago
£650
Return
found 1 day ago
Select JetBlue Airways flight, departing Fri, 14 Aug from Denver to Jacksonville, returning Tue, 25 Aug, priced at £650 found 1 day ago
JetBlue Airways
Mon, 31 Aug - Sun, 6 Sept
DEN
Denver
JAX
Jacksonville
£694 Return, found 4 days ago
£694
Return
found 4 days ago
Select JetBlue Airways flight, departing Mon, 31 Aug from Denver to Jacksonville, returning Sun, 6 Sept, priced at £694 found 4 days ago
JetBlue Airways
Mon, 31 Aug - Sun, 6 Sept
DEN
Denver
JAX
Jacksonville
£700 Return, found 4 days ago
£700
Return
found 4 days ago
Select JetBlue Airways flight, departing Mon, 31 Aug from Denver to Jacksonville, returning Sun, 6 Sept, priced at £700 found 4 days ago
JetBlue Airways
Mon, 31 Aug - Sun, 6 Sept
DEN
Denver
JAX
Jacksonville
£716 Return, found 4 days ago
£716
Return
found 4 days ago
Select JetBlue Airways flight, departing Mon, 31 Aug from Denver to Jacksonville, returning Sun, 6 Sept, priced at £716 found 4 days ago
JetBlue Airways
Mon, 31 Aug - Sun, 6 Sept
DEN
Denver
JAX
Jacksonville
£721 Return, found 4 days ago
£721
Return
found 4 days ago
Select JetBlue Airways flight, departing Mon, 31 Aug from Denver to Jacksonville, returning Sun, 6 Sept, priced at £721 found 4 days ago

Find the cheapest month to fly from Denver (DEN) to Jacksonville (JAX)

October is typically the cheapest month to fly

From £162 - £229 per traveller.

Frequently asked questions

How much does a flight from Denver, CO (DEN-Denver Intl.) to Jacksonville, FL (JAX-Jacksonville Intl.) cost?
You can find one-way and return flights from DEN to JAX with Expedia. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see our cheapest fares first, and use the Price Tracking tool to receive alerts when DEN to JAX ticket fares go up or down.
What is the cheapest month to fly from Denver, CO (DEN-Denver Intl.) to Jacksonville, FL (JAX-Jacksonville Intl.)?
The cheapest months to fly from DEN to JAX are typically during off-peak season when demand is low. Traveling in off-peak or shoulder months is usually a good way to secure cheap tickets, just remember to avoid flying during holidays if you are able to. Use the calendar view in your search to see which months have low fares on this route.
Which airlines fly direct from Denver, CO (DEN-Denver Intl.) to Jacksonville, FL (JAX-Jacksonville Intl.)?
There are 2 airlines offering direct flights from Denver, CO (DEN-Denver Intl.) to Jacksonville, FL (JAX-Jacksonville Intl.). Here are the carriers:
  • United operates 14 direct flights from Denver, CO (DEN-Denver Intl.) to Jacksonville, FL (JAX-Jacksonville Intl.) every week.
  • Southwest Airlines operates 7 direct flights from Denver, CO (DEN-Denver Intl.) to Jacksonville, FL (JAX-Jacksonville Intl.) every week.
How do I find cheap flights from Denver, CO (DEN-Denver Intl.) to Jacksonville, FL (JAX-Jacksonville Intl.)?
To find a cheap flight from Denver, CO (DEN-Denver Intl.) to Jacksonville, FL (JAX-Jacksonville Intl.), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best airline to fly with from Denver, CO (DEN-Denver Intl.) to Jacksonville, FL (JAX-Jacksonville Intl.)?
The best airline to fly with from Denver, CO (DEN-Denver Intl.) to Jacksonville, FL (JAX-Jacksonville Intl.) will differ from traveler to traveler. If you like to fly early, United offers early morning flights. If price is the most important factor, United typically offers the lowest fares. Southwest Airlines offers the most daily flights from Denver, CO (DEN-Denver Intl.) to Jacksonville, FL (JAX-Jacksonville Intl.), which is great if flexibility is what you value most. The best carrier for this journey could also be the one you have a loyalty membership with, as flying with that airline or another airline within the same alliance could help you collect points or enjoy lounge access.
What is the best time to fly from Denver, CO (DEN-Denver Intl.) to Jacksonville, FL (JAX-Jacksonville Intl.)?
The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience.
How many flights per day from Denver, CO (DEN-Denver Intl.) to Jacksonville, FL (JAX-Jacksonville Intl.)?
You'll find around 3 nonstop flights per day from Denver Intl. (DEN) to Jacksonville Intl. (JAX). For even more choices, look at flights that include layovers, as there are approximately 128 connecting flights per day. Some common connection points include Hartsfield-Jackson Atlanta Intl. (ATL), O'Hare Intl. (ORD), and Dallas-Fort Worth Intl. (DFW).
What is the earliest flight from Denver, CO (DEN-Denver Intl.) to Jacksonville, FL (JAX-Jacksonville Intl.)?
The earliest flight from Denver International Airport (DEN) to Jacksonville International Airport (JAX) typically departs around 12:00 AM local time, operated by Frontier Airlines. This is a seasonal service, active only in July. An early departure like this can help you make the most of your time at your destination. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What day of the week has the most flights from Denver, CO (DEN-Denver Intl.) to Jacksonville, FL (JAX-Jacksonville Intl.)?
You'll typically find the most flights from Denver International Airport (DEN) to Jacksonville International Airport (JAX) on a Friday, with around 76 flights available. This gives you plenty of options for your travel plans. Major airlines on this route include Southwest Airlines, United, and American Airlines. Flight schedules are fairly consistent throughout the week, with Fridays having only slightly more flights than other days.
What are the most popular departure times for flights from Denver, CO (DEN-Denver Intl.) to Jacksonville, FL (JAX-Jacksonville Intl.)?
The most popular departure times for flights from Denver, CO (DEN-Denver Intl.) to Jacksonville, FL (JAX-Jacksonville Intl.) are between 9am and 12pm. Many major carriers, including American Airlines, United and Southwest Airlines, offer flights during this window. Many travellers prefer these times as they allow for a relaxed start to the day while still arriving at their destination with plenty of time left.
How long does it take to fly from Denver, CO (DEN-Denver Intl.) to Jacksonville, FL (JAX-Jacksonville Intl.)?
A direct flight from Denver, CO (DEN-Denver Intl.) to Jacksonville, FL (JAX-Jacksonville Intl.) typically takes around 3 hours 30 minutes. This journey covers a distance of approximately 2,326 kilometres. If you opt for a flight with one stop, your travel time will be longer, usually around 8 hours 30 minutes. Flights with two or more stops generally take about 9 hours 30 minutes. Keep in mind that actual flight times can vary due to factors like routing, weather, and wind patterns.
Can you fly business or first class from Denver, CO (DEN-Denver Intl.) to Jacksonville, FL (JAX-Jacksonville Intl.)?
Yes, you can fly business class or first class between DEN and JAX.Airlines that offer business class service on this route include:
  • Frontier Airlines
  • Delta
First class cabins are available on:
  • United
  • Delta
  • American Airlines
How do I earn miles on a Denver, CO (DEN-Denver Intl.) to Jacksonville, FL (JAX-Jacksonville Intl.) flight with Expedia?
It's easy to earn miles on a Denver, CO (DEN-Denver Intl.) to Jacksonville, FL (JAX-Jacksonville Intl.) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Jacksonville, FL (JAX) from Denver, CO (DEN)?
If you're planning to travel to Jacksonville from Denver Intl. (DEN), you can fly directly into Jacksonville Intl. (JAX). Some flights may connect through major hubs like Eppley Field (OMA), Tulsa Intl. (TUL), or Wichita Dwight D. Eisenhower National (ICT) before reaching Jacksonville. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Denver, CO (DEN-Denver Intl.) to Jacksonville, FL (JAX-Jacksonville Intl.) at the last minute?
Typically, booking a last minute flight from Denver, CO (DEN-Denver Intl.) to Jacksonville, FL (JAX-Jacksonville Intl.) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Denver, CO (DEN-Denver Intl.) to Jacksonville, FL (JAX-Jacksonville Intl.) flight and hotel package?
Securing a Denver, CO (DEN-Denver Intl.) to Jacksonville, FL (JAX-Jacksonville Intl.) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Denver, CO (DEN-Denver Intl.) to Jacksonville, FL (JAX-Jacksonville Intl.)?
If you booked your Denver, CO (DEN-Denver Intl.) to Jacksonville, FL (JAX-Jacksonville Intl.) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Denver Intl.
Destination airport
Jacksonville Intl.
Airlines serving
JetBlue Airways
Return price
£411
Distance
2311 km
Average flight time
5 hours 22 mins

Book with confidence

Compare flights from Denver to Jacksonville easily and book with confidence

For travelling on business or for pleasure, Expedia makes it easy to book your flights from Denver to Jacksonville. Operating between them flights per day, 20 airlines cover the route. And fly direct, getting you to Jacksonville Intl. in just hours. If you have a preferred carrier, use our advanced search tool to find the right flight from Denver Intl. to Jacksonville Intl..  

To make things even better, in the advanced search, you can also choose to fly economy, premium economy, business or first class, select your maximum number of stops, and pick your preferred departure and arrival time. You can also opt for refundable and direct flights. 

Grab a great deal on your flight from Denver Intl. (DEN) to Jacksonville Intl. (JAX)

The easiest way to view the best deals on flights from Denver to Jacksonville today is to enter your travel dates and hit search. From here, you can sort your results by price to see the cheapest flights first. Right now, return flights from Denver Intl. to Jacksonville Intl. start at just £412 and range up to £8,482.  

To find an even better deal, try  

  • being flexible on your dates – midweek flights can be cheaper
  • looking for other airports near Denver and Jacksonville
  • booking your flight during August, the cheapest month on this route
  • varying your flight times – early morning and late at night are sometimes cheaper 

Why you should book your Denver to Jacksonville flight with Expedia!

We cater for all flight types, cabin classes and airlines. So whether you’re booking flights from Denver Intl. to Jacksonville Intl. for a budget break or a business trip with a bit of pleasure thrown in, we make it easy to secure the seat that’s right for you.  

Thanks to our supersized inventory that offers great choice all in one place, you know you’ll get a great deal with Expedia. Especially if you bundle your flight together with your hotel, you will unlock amazing savings. For added peace of mind, you can choose flexible bookings or filter to find refundable options, so you won’t pay a fee to change your flight.  

Compare flights from Denver to Jacksonville easily and book with confidence

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*Available to Expedia members.