Cheap flights from Jacksonville to Denver

One-way fares from $131 · JAX → DEN · prices found by travellers in the last 48 hours

Compare all dates Denver → Jacksonville
Cheapest fare
$131

Frontier Airlines · Mon, Dec 21

Cheapest month
December

from $131

Direct flights
Not recently

Usually 1+ stop

Quickest trip
4h 56m

2,360 km

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Cheapest month to fly from Jacksonville to Denver

Lowest one-way fare per person in each month. Choose a month to see every date.

  1. November 2026 $201
  2. December 2026 Cheapest $131

Cheapest dates in December 2026

The lowest fares we've seen for each day, cheapest first.

Frontier Airlines
Depart20:36 Mon, Dec 21JAX → DEN 4h 56m · 1 stop
$131one way, per person
View deal
Allegiant Air
Depart09:09 Sun, Dec 20JAX → DEN 9h 12m · 2 stops
$234one way, per person
View deal
See every date in December 2026 →

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Where to stay, what to do and getting around, from our travel partners.

Where to stay

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Things to do

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Getting around

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About flights from Jacksonville to Denver

Jacksonville (JAX) and Denver (DEN) are about 2,360 km apart. We haven't seen direct fares on this route recently, so expect at least one stop; the quickest journey we've seen takes about 4h 56m. Over the next few months, one-way fares start from $131, and December 2026 is currently the cheapest month to fly.

These prices come from searches travellers made in the last 48 hours, so they move quickly. If you see a good fare, it's worth booking soon. FlightsExp is free to use: you book directly with our travel partner.

Frequently asked questions

How much is a flight from Jacksonville to Denver?

The cheapest one-way fare we've seen recently is $131 with Frontier Airlines, departing Monday, December 21, 2026. Over the coming months, the lowest fare in each month ranges from $131 to $201.

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

December 2026 currently has the lowest fares, from $131 one way.

Are there direct flights from Jacksonville to Denver?

We haven't seen direct fares recently, so most journeys include at least one stop.

How long is the flight from Jacksonville to Denver?

The quickest journey we've seen takes about 4h 56m. Jacksonville and Denver are around 2,360 km apart.

Which airlines fly from Jacksonville to Denver?

Recent fares on this route were with Frontier Airlines and Allegiant Air.

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