$158 Cheap Frontier Airlines flights Denver (DEN) to Jacksonville (JAX)

View $158 flight on Wed, Aug 27, 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

$158 Cheap Frontier Airlines flights Denver (DEN) to Jacksonville (JAX)

Prices were available within the past 7 days and start at $158 for one-way flights and $267 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Thu, Sep 18 - Sun, Sep 21
DEN
Denver
JAX
Jacksonville
$267 Roundtrip, found 9 hours ago
$267
Roundtrip
found 9 hours ago
Select Frontier Airlines flight, departing Thu, Sep 18 from Denver to Jacksonville, returning Sun, Sep 21, priced at $267 found 9 hours ago
Frontier Airlines
Wed, Sep 3 - Sun, Sep 7
DEN
Denver
JAX
Jacksonville
$275 Roundtrip, found 14 hours ago
$275
Roundtrip
found 14 hours ago
Select Frontier Airlines flight, departing Wed, Sep 3 from Denver to Jacksonville, returning Sun, Sep 7, priced at $275 found 14 hours ago
Frontier Airlines
Sun, Sep 21 - Thu, Oct 9
DEN
Denver
JAX
Jacksonville
$287 Roundtrip, found 14 hours ago
$287
Roundtrip
found 14 hours ago
Select Frontier Airlines flight, departing Sun, Sep 21 from Denver to Jacksonville, returning Thu, Oct 9, priced at $287 found 14 hours ago
Frontier Airlines
Fri, Aug 15 - Thu, Aug 21
DEN
Denver
JAX
Jacksonville
$297 Roundtrip, found 9 hours ago
$297
Roundtrip
found 9 hours ago
Select Frontier Airlines flight, departing Fri, Aug 15 from Denver to Jacksonville, returning Thu, Aug 21, priced at $297 found 9 hours ago
Frontier Airlines
Wed, Sep 3 - Mon, Sep 8
DEN
Denver
JAX
Jacksonville
$302 Roundtrip, found 12 hours ago
$302
Roundtrip
found 12 hours ago
Select Frontier Airlines flight, departing Wed, Sep 3 from Denver to Jacksonville, returning Mon, Sep 8, priced at $302 found 12 hours ago
Frontier Airlines
Mon, Aug 18 - Fri, Aug 22
DEN
Denver
JAX
Jacksonville
$306 Roundtrip, found 14 hours ago
$306
Roundtrip
found 14 hours ago
Select Frontier Airlines flight, departing Mon, Aug 18 from Denver to Jacksonville, returning Fri, Aug 22, priced at $306 found 14 hours ago
Frontier Airlines
Wed, Sep 3 - Thu, Sep 11
DEN
Denver
JAX
Jacksonville
$315 Roundtrip, found 5 hours ago
$315
Roundtrip
found 5 hours ago
Select Frontier Airlines flight, departing Wed, Sep 3 from Denver to Jacksonville, returning Thu, Sep 11, priced at $315 found 5 hours ago
Frontier Airlines
Fri, Jul 25 - Mon, Jul 28
DEN
Denver
JAX
Jacksonville
$318 Roundtrip, found 14 hours ago
$318
Roundtrip
found 14 hours ago
Select Frontier Airlines flight, departing Fri, Jul 25 from Denver to Jacksonville, returning Mon, Jul 28, priced at $318 found 14 hours 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 Frontier Airlines flight from Denver Intl. Airport (DEN) to Jacksonville Intl. Airport (JAX)?
Make use of the "Price (lowest to highest)" filter on Expedia to look for cheap Frontier Airlines return flights from $267 from DEN to JAX. Affordable one-way tickets from $158 are available too.**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 Frontier Airlines?
January is one of the cheapest months to fly to Jacksonville with Frontier Airlines. You could also find fantastic deals on one-way and return tickets in November.
What is the cheapest time to book flights from Denver Intl. Airport (DEN) to Jacksonville Intl. Airport (JAX) with Frontier Airlines?
Begin your search one to three months ahead of your departure date to score cheap fares on Frontier 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 versus last-minute reservations made 6 to 12 days out. You could also reduce costs by buying your fare on a Sunday, as it's 6% cheaper on average than a Monday, the most expensive day to book.* Get your timing spot on, 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 Frontier Airlines fly nonstop from Denver Intl. Airport (DEN) to Jacksonville Intl. Airport (JAX)?
Click on the "Nonstop" filter when searching for direct Frontier Airlines flights from DEN to JAX. It's also an easy way to compare other airlines offering the same nonstop trip.
What is the earliest Frontier Airlines flight from DEN to JAX?
To find the earliest departure from DEN to JAX with Frontier Airlines, filter your results by "Early Morning" and "Morning." Booking an early flight generally means you'll experience fewer cancellations.**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 Frontier Airlines fly into in Jacksonville?
Jump on a Frontier Airlines flight from Denver Intl. Airport (DEN) to Jacksonville, and you'll likely arrive at Jacksonville Intl. Airport (JAX). This is the airline's main hub here.
Why fly with Frontier Airlines from DEN to JAX?
A rewarding loyalty program and the ability to collect points through Frontier Miles are the start of the reasons to leave from DEN to JAX with Frontier Airlines. Plus, by joining Expedia's free One Key™ program, you can earn OneKeyCash™* alongside any airline loyalty program earnings. It's yours to spend on your next adventure.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.
Can I change or cancel my Frontier Airlines flight from Denver Intl. Airport (DEN) to Jacksonville Intl. Airport (JAX)?
Changes are usually free within 24 hours of booking, but your airline may add a charge after that time. For further information about altering your flights, head to your "Trips," select your flight and click on "Manage Booking." If you'd like the freedom to make changes without additional charges, check the "Changes included" and "No cancel fee" filters when organizing your next getaway.

Explore a world of travel with Expedia

*Available to One Key members.