Cheap flights from Jacksonville to Philadelphia from $122 JAX → PHL
Jacksonville International Airport (JAX) → Philadelphia International Airport (PHL)
The cheapest return found recently is $337 with Frontier Airlines, 20 Nov – 23 Nov, found 5 days ago. The cheapest one-way found recently is $122 with Allegiant Air, 17 Dec, found 2 days ago.
- Cheapest one-way found recently
- $122, found 2 days ago
- Cheapest return found recently
- $337, 20 Nov to 23 Nov
- Cheapest month to fly
- December 2026, one-way fares from $122 found in the last 7 days
Return
Not enough comparable prices yet for a usual return price.
Cheapest return found recently
$337
20 Nov – 23 Nov · Frontier Airlines
Jacksonville International Airport (JAX) → Philadelphia International Airport (PHL)
Leaves 7:14 p.m. · Return leaves 9:50 a.m. · 18 h 47 min of travel, both ways together
out 1 stop, back 1 stop
found 5 days ago
Cheapest nonstop return
None seen yet.
Found recently, and the cheapest we hold
$337 20 Nov – 23 Novfound 5 days agoSee prices for these dates
It is also the cheapest return we hold, of any age.
What have prices looked like?
Over 34 days, 24 Sept to 11 Nov, the cheapest return we saw each day was $155 to $349.
Those were the prices on those days, not today's.
Is this a good return price?
Not enough comparable prices yet: we hold return fares on 1 departure date and need at least 3 to say what is usual.
Could nearby dates be cheaper?
We hold no other 3-night return fares leaving within 3 days of 20 Nov to compare.
Every date we hold
1 fares on 1 departure dates
See every date as a table
| Dates | From | Airline | Airports | Stops | Found | |
|---|---|---|---|---|---|---|
| 20 Nov – 23 Nov | $337 | Frontier Airlines | Jacksonville International Airport (JAX) → Philadelphia International Airport (PHL) | out 1 stop, back 1 stop | found 5 days ago | See prices for these dates |
Airlines on the cheapest dates: Frontier Airlines.
One-way
The cheapest one-way fare on each of 3 departure dates is usually $137 to $179.
Cheapest one-way found recently
$122
17 Dec · Allegiant Air
Jacksonville International Airport (JAX) → Philadelphia International Airport (PHL)
Leaves 4:22 p.m. · 24 h 1 min trip
1 stop
found 2 days ago
Cheapest nonstop one-way
None seen yet.
Found recently, and the cheapest we hold
$122 17 Decfound 2 days agoOpen this trip
It is also the cheapest one-way we hold, of any age.
What have prices looked like?
Over 43 days, 24 Sept to 11 Nov, the cheapest one-way we saw each day was $53 to $376.
Those were the prices on those days, not today's.
Is this a good one-way price?
Compared with the cheapest one-way fare on each of 3 departure dates from 29 Nov to 17 Dec, found by travelers' searches in the last 7 days (economy, the price the seller showed on Aviasales). The usual range is the middle half of those prices.
Could nearby dates be cheaper?
We hold no other one-way fares leaving within 3 days of 17 Dec to compare.
Every date we hold
3 fares on 3 departure dates
See the chart as a table
| Dates | From | Airline | Airports | Stops | Found | |
|---|---|---|---|---|---|---|
| 29 Nov | $205 | jetBlue | Jacksonville International Airport (JAX) → Philadelphia International Airport (PHL) | 1 stop | found 6 days ago | Open this trip |
| 30 Nov | $152 | Frontier Airlines | Jacksonville International Airport (JAX) → Philadelphia International Airport (PHL) | 1 stop | found 6 days ago | Open this trip |
| 17 Dec | $122 | Allegiant Air | Jacksonville International Airport (JAX) → Philadelphia International Airport (PHL) | 1 stop | found 2 days ago | Open this trip |
Which month looks cheapest?
December 2026 is the cheapest month — from $122.
Airlines on the cheapest dates: jetBlue, Frontier Airlines, Allegiant Air.
Premium cabin fares from Jacksonville to Philadelphia
We hold no premium economy, business or first-class fares for this route: we collect them for the busiest routes, and this one is not among them yet.
Today's prices for 20 Nov – 23 Nov in another cabin: Premium economy · Business · First
Today's prices for 17 Dec in another cabin: Premium economy · Business · First
How far ahead were prices cheapest for Jacksonville to Philadelphia?
Return
The cheapest fares were 7 to 13 days before departure.
From the cheapest return each day between 24 Sept and 11 Nov (34 days), grouped by how many days ahead the flight left; one adult in economy.
Each range covers different departure dates, so this compares typical fares, not the same trip priced twice.
Prices reflect recent searches — current fares may differ.
See these ranges as a table
| Booked ahead by | Typical fare | Cheapest day | Above the cheapest | Days of prices |
|---|---|---|---|---|
| 7–13 days | $188 | $184 | Cheapest seen | 14 |
| 14–29 days | $188 | $155 | +0% | 11 |
| 90–179 days | $241 | $241 | +28% | 7 |
One-way
Fares 7 to 13 days before departure were typically 10% lower than 0 to 6 days before departure.
From the cheapest one-way each day between 24 Sept and 11 Nov (43 days), grouped by how many days ahead the flight left; one adult in economy.
Each range covers different departure dates, so this compares typical fares, not the same trip priced twice.
Prices reflect recent searches — current fares may differ.
See these ranges as a table
| Booked ahead by | Typical fare | Cheapest day | Above the cheapest | Days of prices |
|---|---|---|---|---|
| 0–6 days | $121 | $53 | +11% | 20 |
| 7–13 days | $109 | $107 | Cheapest seen | 10 |
| 14–29 days | $109 | $88 | +0% | 16 |
| 30–59 days | $132 | $122 | +21% | 10 |
| 60–89 days | $186 | $156 | +70% | 8 |
| 90–179 days | $172 | $172 | +58% | 8 |
Could a nearby airport be cheaper?
A different airport at either end can change the fare — sometimes a lot.
Return
Jacksonville → Baltimore
145 km from Philadelphia
$166
$171 less than flying to Philadelphia
5 Feb 2027 – 8 Feb 2027 · JAX → BWI · out 1 stop, back 1 stop
found 3 days ago
Jacksonville → New York
130 km from Philadelphia
$213
$124 less than flying to Philadelphia
13 Nov – 15 Nov · JAX → JFK · out nonstop, back nonstop
found 5 days ago
Cheapest recent price on each route — round trip, per traveler in Economy. Distances are in a straight line.
One-way
Jacksonville → New York
130 km from Philadelphia
$229
$107 more than flying to Philadelphia
22 Nov · JAX → JFK · nonstop
found 4 days ago
Cheapest recent price on each route — one way, per traveler in Economy. Distances are in a straight line.
Live price for these dates
The cheapest return found recently is for 20 Nov – 23 Nov. A live search on this page shows what those dates cost now, for one adult in economy.
Questions about this trip
How much is a return flight from Jacksonville to Philadelphia?
The cheapest return found recently is $337 with Frontier Airlines, 20 Nov to 23 Nov, found 5 days ago.
How much is a one-way flight from Jacksonville to Philadelphia?
The cheapest one-way found recently is $122 with Allegiant Air, 17 Dec, found 2 days ago. The cheapest one-way fare on each of 3 departure dates is usually $137 to $179.
What is the cheapest month to fly from Jacksonville to Philadelphia?
December 2026 is the cheapest month for a one-way, from $122, 17 Dec, found 2 days ago.
How far ahead should I book a flight from Jacksonville to Philadelphia?
In 34 days of prices between 24 Sept and 11 Nov, return fares were cheapest 7 to 13 days before departure. In 43 days of prices between 24 Sept and 11 Nov, one-way fares 7 to 13 days before departure were typically 10% lower than 0 to 6 days before departure.
How long is the flight from Jacksonville to Philadelphia?
The cheapest one-way found recently, with Allegiant Air on 17 Dec, takes 24 h 1 min with 1 stop.
Which airlines have the cheapest flights from Jacksonville to Philadelphia?
Between 29 Nov and 17 Dec, jetBlue has the cheapest one-way on 1 of the 3 departure dates we hold, Frontier Airlines on 1 and Allegiant Air on 1.
Prices are what travelers' searches on Aviasales found in the last 7 days, in US dollars: the price the seller showed on Aviasales; bags may cost extra. Fares change, so check today's price before you book. How our prices work