$159 Cheap United flights Denver (DEN) to Jacksonville (JAX)

View $159 flight on Wed, Jul 16, 2025Opens in a new window

  • Plan, book, fly with confidence

  • trending down icon
    Be in the know
    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon
    Book smarter
    Save up to 30% on select hotels after you book a flight*
  • one key icon
    Earn twice
    Earn your airline miles on top of our OneKeyCash
    Learn about One Key

$159 Cheap United flights Denver (DEN) to Jacksonville (JAX)

Prices were available within the past 7 days and start at $159 for one-way flights and $317 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Tue, Jul 22 - Sat, Jul 26
DEN
Denver
JAX
Jacksonville
$317 Roundtrip, found 1 hour ago
$317
Roundtrip
found 1 hour ago
Select United flight, departing Tue, Jul 22 from Denver to Jacksonville, returning Sat, Jul 26, priced at $317 found 1 hour ago
Flights from Denver (DEN) to Jacksonville (JAX)
Origin airport
Denver Intl.
Destination airport
Jacksonville Intl.
Airlines serving
American Airlines, Delta, Frontier Airlines, JetBlue Airways, Southwest Airlines, United
Popular airline
American Airlines
Distance
1444 mi
Average flight time
6 hours 40 mins

Frequently asked questions

How much is a United Airlines flight from Denver Intl. Airport (DEN) to Jacksonville Intl. Airport (JAX)?
You can discover cheap return United Airlines flights from $317 from DEN to JAX by organizing your results from "Price (lowest to highest)" on Expedia. Or search for bargains from $159 for a one-way trip.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
What is the cheapest month to fly from DEN to JAX with United Airlines?
January is one of the most affordable months to travel to Jacksonville with United Airlines. You could also find great prices on one-way and return fares in November.
What is the cheapest time to book flights from Denver Intl. Airport (DEN) to Jacksonville Intl. Airport (JAX) with United Airlines?
Begin your search one to three months ahead of your departure date to score cheaper fares on United Airlines flights from Denver Intl. Airport (DEN) to Jacksonville Intl. Airport (JAX). You can save 25% by booking your domestic flight 34 to 86 days in advance compared to last-minute reservations made 6 to 12 days out. You could also cut costs by buying your fare on a Sunday, as it's 6% cheaper on average than a Monday, the most expensive day to book.* Nail your timing, and you can enjoy significant savings on domestic flights.*Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC's global airline sales database.
Does United Airlines fly nonstop from Denver Intl. Airport (DEN) to Jacksonville Intl. Airport (JAX)?
Skip the layovers and fly from Denver Intl. Airport (DEN) to Jacksonville Intl. Airport (JAX) on one of United Airlines's 7 direct weekly flights. Use our "Nonstop" and "Airline" filters to find the United Airlines flight that'll land at JAX at a time that suits you.
How long does it take to fly from DEN to JAX with United Airlines?
On average, it takes 3h 23m to travel nonstop from Denver Intl. Airport (DEN) to Jacksonville Intl. Airport (JAX) with United Airlines.
What is the earliest United Airlines flight from DEN to JAX?
Leaving DEN at 9:47AM UTC-7, the earliest United Airlines flight to JAX lands at 3:10PM UTC-5. Flying early means you're less likely to experience delays.* After something later? The last United Airlines flight from DEN to JAX departs at 9:47AM UTC-7 and touches down at 3:10PM UTC-5.*Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports does United Airlines fly into in Jacksonville?
Take a United Airlines flight from Denver Intl. Airport (DEN) to Jacksonville, and you're most likely to touch down at Jacksonville Intl. Airport (JAX). This is the airline's primary hub here.
Why fly with United Airlines from DEN to JAX?
Offering a rewarding loyalty program, United Airlines is a popular choice for many travelers departing from DEN to JAX. Plus, if you're a United Mileage Plus and One Key™ member booking through Expedia, you could earn OneKeyCash™* on eligible flights along with your airline miles.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.
What type of plane does United Airlines fly from Denver Intl. Airport (DEN) to Jacksonville Intl. Airport (JAX)?
United Airlines usually flies Boeing 737-800 planes for flights from Denver Intl. Airport (DEN) to Jacksonville Intl. Airport (JAX). This airline also operates the Boeing 737 MAX 8 on this route. Bear in mind that aircraft type can vary depending on operational reasons, so the plane you catch could be different when you leave.
Can I change or cancel my United Airlines flight from Denver Intl. Airport (DEN) to Jacksonville Intl. Airport (JAX)?
Depending on the type of ticket you purchased, a fee typically applies if you cancel or reschedule your flight more than 24 hours after it's been confirmed. To secure plane tickets with more flexibility, select our "Changes included" and "No cancel fee" boxes while looking for flights. For more details on modifying or canceling your reservation, head to "Trips," select your flight and click on "Manage Booking."

Explore a world of travel with Expedia

*Available to One Key members.