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Published January 27, 2026 by

Nonstop Flights: Phoenix to/from San Diego or Las Vegas $97-$107 round-trip [February-May] – American / Southwest

[01/27/2026 @ 10:48 AM CT] Deal time-stamp.
[2026-02-02 08:13:00] This fare IS NO LONGER BEING MONITORED because the deal has expired, been removed, or became too old. If it goes back online we will send out another notification.

Deals are usually valid 24 to 72 hours after posting, but can expire at any time (see time-stamp).

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To book: Use our updated link list.

Or book with these sites: Priceline, Skyscanner, Expedia, Travelocity, Tripadvisor, Orbitz, CheapTickets, Kayak.

American and Southwest has round-trip flights from Phoenix (PHX) to San Diego or Las Vegas (SAN, LAS) for $97-$107, NONSTOP. Flights February to May. Cheapest flights are on Tuesdays, Wednesdays, and Saturdays. Origin/Destination reversible.

  • Frontier has “cheaper” fares, but the total cost after adding in their bag/seat fees is comparable to these.
  • Southwest now charges a seat fee and has assigned seating.

Use a card like the Southwest Rapid Rewards® Plus Credit Card to earn points towards a Companion Pass®. Companion Pass is the benefit that allows you to choose one person to fly with you, free of airline charges* every time you purchase or redeem points for a flight. *Companion Pass doesn’t cover taxes and fees.

It is common to find Southwest gift-cards for sale at a discount of about -$70 to -$20 off the redeemable value at Costco and Sam’s Club. Before you finalize your booking you should check to see if you can save more money by using a gift card.

You can usually save more money by booking your flight+hotel together as a package instead of separately.

We post new flight deals often! You can check out our other deals by returning to the Front Page of our website: escape.flights (linked).

Here are some other offers that we think are worth mentioning. List updated 04/21/2026.

We now track coupon codes, discount codes, gift card discounts, and credit card offers that have a better value than their historical averages.

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Use the example date links on our website to pull up the fare.

San Diego fares: [2026-02-02 08:13:00] This fare IS NO LONGER BEING MONITORED because the deal has expired, been removed, or became too old. If it goes back online we will send out another notification.

Las Vegas fares: [2026-02-24 08:33:00] This fare IS NO LONGER BEING MONITORED because the deal has expired, been removed, or became too old. If it goes back online we will send out another notification.

When you are ready to book your flight or hotel, please use the links on our site to begin your booking process so we receive credit for the referral.

  • Tips: Different booking websites will often have differing routes, prices, and availability. Before you finalize your purchase, do a quick check on Expedia, Skyscanner, and Kayak to see if any other site or airline is offering a better deal.


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Other Useful Links:

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Ren P. Artemio

Ren P. Artemio

Ren is the Chief Director of Nap Times at Escape Houston, Escape ATX, Cheap DFW, and Escape Flights. He really likes researching airfare and the travel industry, especially when it means getting a cheap flight to anywhere (he's not picky).

Airfare Deals Flights from Phoenix San Diego Southwest