
Book Cheap United flight from Phoenix (PHX) to San Diego (SAN) from CA $214
Find The Best Day to Book a Cheap United Flights From Phoenix to San Diego
Cheapest United Flights from Phoenix (PHX) to San Diego (SAN)
The cheapest flights to San Diego Intl. found within the past 7 days were CA $455 round trip and CA $214 one way. Prices and availability subject to change. Additional terms may apply.
Frequently asked questions
Grab a great United flight from PHX to SAN
To find a great deal on United flights with Travelocity, simply enter your origin and destination airports, pick your travel dates, and hit search. From here, you can sort by price, flight duration, and arrival/departure time. You can also filter to find nonstop flights.
Flying United Phoenix to San Diego gives you fights to choose from. With that direct flight time of , you’ll be touching down before you know it.
Find cheap flights with United between Phoenix and San Diego
United has a range of great fares on stacks of flights, and to find the most affordable for you, there are a few tricks you can try. Booking in advance, for example, is a great way to grab a fantastic deal. Also, choose the cheapest month, if you can. One-way flights from Phoenix to San Diego with United are June.
The more flexible you are, the more affordable flights you’re likely to find. Consider one-way flights and connecting flights, as well as standard roundtrip and direct options. Even if you’re flying today, cheap last-minute flights are easy to find by entering your travel dates and hitting search.
Reasons to book your United flights with Travelocity
Travelocity makes it easy to book a seat, anywhere in the world. The vast inventory, fast search, and advanced filters put some of the best deals on the planet in one place. Whether you’re traveling on business, with friends, family, or on your own, take your pick from some fantastic options. And with free cancellation and pay later options, you can travel more and worry less.
Airport code | Country | Airport name | Number of flights |
|---|---|---|---|
| ORD | USA | O'Hare Intl. | 227 |
| DEN | USA | Denver Intl. | 226 |
| IAH | USA | George Bush Intercontinental | 136 |
| IAD | USA | Washington Dulles Intl. | 100 |
| SFO | USA | San Francisco Intl. | 64 |
| LAX | USA | Los Angeles Intl. | 23 |
| EWR | USA | Liberty Intl. | 20 |
| FRA | DEU | Frankfurt Intl. | 19 |
| NRT | JPN | Narita Intl. | 19 |
| PEK | CHN | Capital Intl. | 16 |
Travelers ❤️ these 🏨 after their flight to San Diego

Sheraton San Diego Resort
The gym is top notch with a smith press, squat rack, free weights, yoga, and a lot of cardio machines. The staff are excellent. Rooms updated. Breakfast buffet is rather sparse and not worth it, go a la carte if you must eat there. Views, locations, pools, gym, store, and restaurants are all great. ...
Reviewed on Mar 28, 2026

Wyndham San Diego Bayside
Room was nice. Staff was not rude, but not friendly either. Was a great simple place to stay in San Diego. The Vacation Club Presentation was not great and over promised on how gifts work.
Reviewed on Mar 28, 2026

Homewood Suites by Hilton San Diego Airport/Liberty Station
We loved the hotel very cozy everyone so kind would recommend.
Reviewed on Mar 28, 2026
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