$172 Cheap United flights San Diego (SAN) to Jacksonville (JAX)

View $172 flight on Wed, Dec 3, 2025Opens in a new window

$172 Cheap United flights San Diego (SAN) to Jacksonville (JAX)

Prices were available within the past 7 days and start at $172 for one-way flights and $308 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Wed, Dec 3 - Tue, Dec 9
SAN
San Diego
JAX
Jacksonville
$308 Roundtrip, found 1 day ago
$308
Roundtrip
found 1 day ago
Select United flight, departing Wed, Dec 3 from San Diego to Jacksonville, returning Tue, Dec 9, priced at $308 found 1 day ago
United
Wed, Dec 3 - Tue, Dec 9
SAN
San Diego
JAX
Jacksonville
$336 Roundtrip, found 1 day ago
$336
Roundtrip
found 1 day ago
Select United flight, departing Wed, Dec 3 from San Diego to Jacksonville, returning Tue, Dec 9, priced at $336 found 1 day ago
United
Thu, Feb 5 - Sun, Feb 8
SAN
San Diego
JAX
Jacksonville
$342 Roundtrip, found 1 hour ago
$342
Roundtrip
found 1 hour ago
Select United flight, departing Thu, Feb 5 from San Diego to Jacksonville, returning Sun, Feb 8, priced at $342 found 1 hour ago
United
Thu, Feb 5 - Sun, Feb 8
SAN
San Diego
JAX
Jacksonville
$344 Roundtrip, found 1 hour ago
$344
Roundtrip
found 1 hour ago
Select United flight, departing Thu, Feb 5 from San Diego to Jacksonville, returning Sun, Feb 8, priced at $344 found 1 hour ago
United
Tue, Nov 18 - Wed, Nov 19
SAN
San Diego
JAX
Jacksonville
$348 Roundtrip, found 4 hours ago
$348
Roundtrip
found 4 hours ago
Select United flight, departing Tue, Nov 18 from San Diego to Jacksonville, returning Wed, Nov 19, priced at $348 found 4 hours ago
United
Sat, Feb 14 - Sat, Feb 21
SAN
San Diego
JAX
Jacksonville
$407 Roundtrip, found 3 hours ago
$407
Roundtrip
found 3 hours ago
Select United flight, departing Sat, Feb 14 from San Diego to Jacksonville, returning Sat, Feb 21, priced at $407 found 3 hours ago
Flights from San Diego (SAN) to Jacksonville (JAX)
Origin airport
San Diego Intl.
Destination airport
Jacksonville Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Frontier Airlines, JetBlue Airways, Southwest Airlines, Sun Country Airlines, United
Popular airline
JetBlue Airways
Distance
2085 mi

Frequently asked questions

How much is a United Airlines flight from San Diego Intl. Airport (SAN) to Jacksonville Intl. Airport (JAX)?
You'll find affordable return United Airlines flights from $308 from SAN to JAX by sorting your results from "Price (lowest to highest)" on Expedia. Or search for deals from $172 for a one-way journey.**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 SAN to JAX with United Airlines?
Look for round-trip or one-way flights to Jacksonville in January or November. You could find a cheap fare with United Airlines during these off-peak times.
What is the cheapest time to book flights from San Diego Intl. Airport (SAN) to Jacksonville Intl. Airport (JAX) with United Airlines?
Search for affordable United Airlines flights from San Diego Intl. Airport (SAN) to Jacksonville Intl. Airport (JAX) one to three months before your departure date. Travelers who book domestic flights 34 to 86 days in advance can save 25% compared to those who book just 6 to 12 days ahead. Regardless of fare class and itinerary, the best day of the week to book a domestic flight is generally Sunday and the most expensive is typically Monday. Passengers who book on a Sunday can save 6% on average compared to those who book on a Monday.**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 San Diego Intl. Airport (SAN) to Jacksonville Intl. Airport (JAX)?
Enter your dates, hit search and tick the "Nonstop" filter on Expedia to browse any direct flights from SAN to JAX with United Airlines or another airline.
What is the earliest United Airlines flight from SAN to JAX?
To find the earliest departures from SAN to JAX with United Airlines, filter your results by "Early Morning" and "Morning." Choosing an early flight usually means you're less likely to experience 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 United Airlines fly into in Jacksonville?
Get on a United Airlines flight from San Diego Intl. Airport (SAN) to Jacksonville, and you're most likely to land at Jacksonville Intl. Airport (JAX). This is the airline's primary hub here.
Why fly with United Airlines from SAN to JAX?
A rewarding loyalty program and the ability to rack up points through United Mileage Plus are the start of the reasons to jet off from SAN to JAX with United Airlines. Plus, when you join Expedia's free One Key™ program, you can earn OneKeyCash™* in addition to any airline loyalty program earnings. It's yours to spend on future bookings.*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 United Airlines flight from San Diego Intl. Airport (SAN) to Jacksonville Intl. Airport (JAX)?
In most cases, you can cancel or change your flight, although there may be additional charges if you made your booking more than 24 hours ago. Need flexible options? Apply the "Changes included" or "No cancel fee" filter to find flights that won't charge you extra if you need to adjust your plans. To modify your booking, visit "Trips," select your flight and click on "Manage Booking" for more details.

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*Available to One Key members.