$207 Cheap United flights Jacksonville (JAX) to San Diego (SAN)

View $207 flight on Wed, Aug 20, 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

$207 Cheap United flights Jacksonville (JAX) to San Diego (SAN)

Prices were available within the past 7 days and start at $207 for one-way flights and $408 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Wed, Nov 12 - Tue, Nov 18
JAX
Jacksonville
SAN
San Diego
$408 Roundtrip, just found
$408
Roundtrip
just found
Select United flight, departing Wed, Nov 12 from Jacksonville to San Diego, returning Tue, Nov 18, priced at $408 just found
Flights from Jacksonville (JAX) to San Diego (SAN)
Origin airport
Jacksonville Intl.
Destination airport
San Diego Intl.
Airlines serving
Alaska Airlines, American Airlines, Breeze Airways, Delta, Frontier Airlines, JetBlue Airways, Southwest Airlines, United
Popular airline
Alaska Airlines
Distance
2085 mi
Average flight time
5 hours 5 mins

Frequently asked questions

How much is a United Airlines flight from Jacksonville Intl. Airport (JAX) to San Diego Intl. Airport (SAN)?
Finding cheap one-way United Airlines flights from JAX to SAN from $207 on Expedia is a cinch --- just filter by "Price (lowest to highest)." Or check out our budget-friendly return fares from $408 for your next exciting getaway.**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 JAX to SAN with United Airlines?
January is one of the cheapest months to travel to San Diego with United Airlines. You could also find fantastic deals on one-way and round-trip tickets in November.
What is the cheapest time to book flights from Jacksonville Intl. Airport (JAX) to San Diego Intl. Airport (SAN) with United Airlines?
Look for affordable United Airlines flights from Jacksonville Intl. Airport (JAX) to San Diego Intl. Airport (SAN) one to three months ahead of 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 type and journey, the best day to book a domestic flight is generally Sunday and the most expensive day tends to be Monday. Passengers who book on a Sunday can save 6% on average compared to those who book their travel 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 Jacksonville Intl. Airport (JAX) to San Diego Intl. Airport (SAN)?
Simply enter your dates, hit search and check the "Nonstop" filter on Expedia to find any direct flights from JAX to SAN with United Airlines or another carrier.
What is the earliest United Airlines flight from JAX to SAN?
To find the earliest departure from JAX to SAN with United Airlines, filter your results by "Morning" and "Early 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 United Airlines fly into in San Diego?
Board a United Airlines flight from Jacksonville Intl. Airport (JAX) to San Diego, and you'll likely arrive at San Diego Intl. Airport (SAN). This is the airline's main hub here.
Why fly with United Airlines from JAX to SAN?
With a rewarding loyalty program, United Airlines is a top pick for many passengers heading from JAX to SAN. Plus, as 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.
Can I change or cancel my United Airlines flight from Jacksonville Intl. Airport (JAX) to San Diego Intl. Airport (SAN)?
It's usually possible to cancel or change your flight, although there may be additional fees if you booked more than 24 hours ago. Need flexible options? Use our "Changes included" or "No cancel fee" filter to find flights that won't penalize you if you need to revise your plans. To make modifications, visit "Trips," select your flight and click on "Manage Booking" for more information.

Explore a world of travel with Expedia

*Available to One Key members.