$97 Cheap Flights from Tucson (TUS) to San Diego (SAN)

View $97 flight on Thu, Oct 16, 2025Opens in a new window

Popular airlines from Tucson International Airport (TUS) to San Diego Intl. Airport (SAN)

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Cheap Flights from Tucson to San Diego (TUS-SAN)

Prices were available within the past 7 days and start at $97 for one-way flights and $194 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Thu, Sep 4 - Thu, Sep 11
TUS
Tucson
SAN
San Diego
$194 Roundtrip, found 6 days ago
$194
Roundtrip
found 6 days ago
Select Frontier Airlines flight, departing Thu, Sep 4 from Tucson to San Diego, returning Thu, Sep 11, priced at $194 found 6 days ago
Frontier Airlines
Thu, Jun 26 - Sat, Jun 28
TUS
Tucson
SAN
San Diego
$200 Roundtrip, just found
$200
Roundtrip
just found
Select Frontier Airlines flight, departing Thu, Jun 26 from Tucson to San Diego, returning Sat, Jun 28, priced at $200 just found
Southwest Airlines
Mon, Oct 6 - Thu, Oct 9
TUS
Tucson
SAN
San Diego
$209 Roundtrip, found 14 hours ago
$209
Roundtrip
found 14 hours ago
Select Southwest Airlines flight, departing Mon, Oct 6 from Tucson to San Diego, returning Thu, Oct 9, priced at $209 found 14 hours ago
Frontier Airlines
Thu, Jul 3 - Thu, Aug 7
TUS
Tucson
SAN
San Diego
$211 Roundtrip, found 1 day ago
$211
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Thu, Jul 3 from Tucson to San Diego, returning Thu, Aug 7, priced at $211 found 1 day ago
Southwest Airlines
Wed, Sep 24 - Wed, Oct 1
TUS
Tucson
SAN
San Diego
$214 Roundtrip, just found
$214
Roundtrip
just found
Select Southwest Airlines flight, departing Wed, Sep 24 from Tucson to San Diego, returning Wed, Oct 1, priced at $214 just found
Delta
Wed, Aug 13 - Tue, Aug 19
TUS
Tucson
SAN
San Diego
$215 Roundtrip, found 20 hours ago
$215
Roundtrip
found 20 hours ago
Select Delta flight, departing Wed, Aug 13 from Tucson to San Diego, returning Tue, Aug 19, priced at $215 found 20 hours ago
Southwest Airlines
Wed, Sep 24 - Wed, Oct 1
TUS
Tucson
SAN
San Diego
$217 Roundtrip, just found
$217
Roundtrip
just found
Select Southwest Airlines flight, departing Wed, Sep 24 from Tucson to San Diego, returning Wed, Oct 1, priced at $217 just found
Delta
Wed, Sep 24 - Wed, Oct 1
TUS
Tucson
SAN
San Diego
$219 Roundtrip, just found
$219
Roundtrip
just found
Select Delta flight, departing Wed, Sep 24 from Tucson to San Diego, returning Wed, Oct 1, priced at $219 just found
American Airlines
Wed, Aug 13 - Tue, Aug 19
TUS
Tucson
SAN
San Diego
$220 Roundtrip, found 20 hours ago
$220
Roundtrip
found 20 hours ago
Select American Airlines flight, departing Wed, Aug 13 from Tucson to San Diego, returning Tue, Aug 19, priced at $220 found 20 hours ago
Alaska Airlines
Tue, Oct 28 - Wed, Oct 29
TUS
Tucson
SAN
San Diego
$373 Roundtrip, found 2 days ago
$373
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Tue, Oct 28 from Tucson to San Diego, returning Wed, Oct 29, priced at $373 found 2 days ago

Alternative airports near San Diego

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to General Abelardo L. Rodriguez Intl. TIJ. Average driving time to city center is 26 minutes. Flights from $530
TIJ
General Abelardo L. Rodriguez Intl.
Average driving time to city center26 min
Flights from $530
Select flight to McClellan-Palomar CLD. Cheapest option available. Average driving time to city center is 38 minutes. Flights from $258
CLD
McClellan-Palomar
Cheapest
Average driving time to city center38 min
Flights from $258
Flights from Tucson (TUS) to San Diego (SAN)
Origin airport
Tucson Intl.
Destination airport
San Diego Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Frontier Airlines, Southwest Airlines, United
Roundtrip price
$194
Distance
367 mi
Average flight time
1 hour 20 mins

Tucson to San Diego Flights

The cheapest times to fly from Tucson to San Diego

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Tucson to San Diego are during the month of September. You can find some of the cheapest flights from Tucson to San Diego with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Tucson to San Diego

Sunday is one of the best days to book for cheap flights from Tucson to San Diego: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Tucson to San Diego

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Tucson to San Diego in 2025. You can also book with separate airlines for your outbound and return journeys, from $97 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Tucson to San Diego flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Tucson to San Diego airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Tucson Intl. Airport (TUS) to San Diego Intl. Airport (SAN) cost?
Cheap round-trip fares from Tucson Intl. Airport (TUS) to San Diego Intl. Airport (SAN) start at $209. This information is based on the cheapest price found on Expedia for this return journey departing within the next three months. This airfare is for a Southwest Airlines flight leaving TUS on July 12 2025 and touching down at SAN. The price was last updated on June 15 2025 and has not changed since.
What is the cheapest month to fly from TUS to SAN?
The cheapest flights from TUS to SAN are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
Which airlines fly direct from Tucson Intl. Airport (TUS) to San Diego Intl. Airport (SAN)?
You can fly straight from Tucson Intl. Airport (TUS) to San Diego Intl. Airport (SAN) on a Southwest Airlines flight.
What is the cheapest airline that flies from TUS to SAN?
Right now, the cheapest airline offering one-way flights from TUS to SAN is Southwest Airlines. You can take off on this route from $113. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from TUS on August 23 2025. Prices were last updated on June 15 2025 and have not changed since.
How many flights per day from Tucson Intl. Airport (TUS) to San Diego Intl. Airport (SAN)?
On average, just 1 nonstop flight departs daily from Tucson Intl. Airport (TUS) to San Diego Intl. Airport (SAN). Looking for more options? Use Expedia’s filter tool to discover flights with layovers and explore a new city along the way.
What are the most popular departure times for flights from Tucson Intl. Airport (TUS) to San Diego Intl. Airport (SAN)?
The 8 AM departures from TUS to SAN are the most sought after. Greater demand means you’ll likely pay more for these departures. If you want to save on your fare, choose a less crowded time to fly.
What day of the week has the most flights from TUS to SAN?
If you depart on a Sunday, you’ll get the biggest range of choices for flights from Tucson Intl. Airport (TUS) to San Diego Intl. Airport (SAN).
What is the earliest flight from Tucson Intl. Airport (TUS) to San Diego Intl. Airport (SAN)?
Tucson Intl. Airport (TUS)’s first flight to San Diego Intl. Airport (SAN) departs at approximately 7:25AM UTC-7. With a total journey time of 1h 20m, you’ll arrive at around 7:45AM UTC-8.
How long does it take to fly from Tucson Intl. Airport (TUS) to San Diego Intl. Airport (SAN)?
It usually takes 1 hour and 22 minutes to fly the 370 mi from TUS to SAN.
What is the best time to fly from Tucson Intl. Airport (TUS) to San Diego Intl. Airport (SAN)?
Select a flight from Tucson Intl. Airport (TUS) to San Diego Intl. Airport (SAN) that takes off before 3 PM to reduce the likelihood of delays. Departures later than this have a 22% higher chance of being canceled, on average.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG’s global flight data platform.
What airports do you fly into for San Diego from Tucson Intl. Airport (TUS)?
San Diego Intl. Airport (SAN) is the only airport in San Diego with direct flights from Tucson Intl. Airport (TUS). Explore the options and discover affordable fares on Expedia.
Is it cheaper to buy a plane ticket from Tucson Intl. Airport (TUS) to San Diego Intl. Airport (SAN) last-minute?
Booking your ticket from TUS to SAN right before your trip is typically more expensive. However, if you’re flexible with your travel times and dates, you could bag a cheap last-minute fare.
Is it cheaper to book a TUS to SAN flight and hotel package?
You’ll typically save money by booking a TUS to SAN flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it’s simple to manage everything in one place. After selecting your ideal flights and accommodations, you can add extras like car rentals, tours and activities.
Can I cancel or change the date of my flight from Tucson Intl. Airport (TUS) to San Diego Intl. Airport (SAN)?
If you booked your TUS to SAN flight in the last 24 hours, you may be able to cancel or modify it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you’d like more information.

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*Available to One Key members.