Book Frontier Airlines Flights to Phoenix

Phoenix is a major Frontier destination with nonstop service from Denver, Las Vegas, Atlanta, San Diego, and Detroit. Summer is actually the cheapest time to fly here because triple-digit heat keeps tourists away. If you can handle the warmth, you'll find fares well below $50 one-way from nearby cities. Mundo Trip helps you lock in the best price.

Frontier Airlines Flight Details and Travel Information for Flights to Phoenix

Flight Time: 1 to 5 hours (Nonstop); varies by departure city

Cheapest Months: June, July, August

Departure Airports: Denver (DEN), Las Vegas (LAS), Atlanta (ATL), San Diego (SAN), Detroit (DTW)

Cabin Options: Economy, Stretch, UpFront Plus, First (on select aircraft)

Time Zone: Mountain Standard Time (MST), UTC-7 year-round (Arizona does not observe DST)

US Departure Airports for Frontier Airlines Flights to Phoenix

<p><span style="font-size:11pt; font-variant:normal; white-space:pre-wrap"><span style="font-family:Lexend,sans-serif"><span style="color:#000000"><span style="font-weight:700"><span style="font-style:normal"><span style="text-decoration:none">Denver International Airport (DEN)</span></span></span></span></span></span></p>

Denver International Airport (DEN)

About 2 hours 15 minutes. One of Frontier's most-flown routes, with daily nonstop service. Great fares available year-round.

Harry Reid International Airport (LAS)

Around 1 hour 15 minutes. A short hop that Frontier runs frequently. Popular for quick weekend trips between the two desert cities.

Hartsfield-Jackson Atlanta International Airport (ATL)

Close to 3 hours 45 minutes. Frontier offers nonstop service connecting Atlanta to Phoenix, giving East Coast travelers an affordable route to the Southwest.

San Diego International Airport (SAN)

About 1 hour 10 minutes. One of the shortest nonstop routes in Frontier's network. Quick and cheap.

Detroit Metropolitan Wayne County Airport (DTW)

Around 4 hours. Frontier connects Detroit to Phoenix nonstop, especially popular during winter months when Michigan travelers head for warmer weather.

Phoenix Airport Arrival Guide for Frontier Airlines Flights from the USA

All Frontier flights to Phoenix arrive at Phoenix Sky Harbor International Airport (PHX), located about 4 miles east of downtown Phoenix. It's one of the most conveniently located major airports in the country. PHX handles around 50 million passengers per year across three terminals.

Phoenix Sky Harbor recently completed renovations to Terminal 3 and continues upgrades across the facility. The PHX Sky Train connects terminals to the Valley Metro light rail system at the 44th Street station. Free Wi-Fi is available throughout.

Terminals: Frontier operates from Terminal 1
Transport Options: Valley Metro Rail (PHX Sky Train connects to the light rail), rideshares, taxis, rental cars, and hotel shuttles
Transfer Time to Downtown: About 10 to 15 minutes by car. The Sky Train plus Valley Metro light rail gets you downtown in about 25 minutes
Climate Note: Summer temperatures regularly exceed 110 degrees F. Stay hydrated if you're arriving between June and September

No visa or special documents needed for US citizens traveling domestically.

Best Time to Book Frontier Airlines Flights to Phoenix

Cheapest Months to Travel

June, July, and August are surprisingly the cheapest time to fly to Phoenix because extreme heat reduces tourist demand. Peak season is October through April when the weather is comfortable and snowbirds flock to Arizona.

Peak Travel Seasons to Avoid

October through April is peak season when temperatures are comfortable (70s-80s). January through March is especially busy with baseball spring training, golf tournaments, and snowbird migration.

Best Time to Book

For the cheapest Frontier fares, book 3 to 6 weeks ahead. For peak winter season travel, 2 to 3 months in advance is recommended. Summer flights can often be booked last-minute at low prices.

Midweek Advantage

Tuesday and Wednesday flights to Phoenix are cheapest. Weekend travel (Friday and Sunday) costs more year-round, but the gap widens during peak winter months.

Time Difference to Keep in Mind

Phoenix is on Mountain Standard Time (MST) year-round because Arizona does not observe Daylight Saving Time. This means Phoenix matches Pacific Daylight Time in summer and Mountain Time in winter. Double-check your arrival time if connecting from a DST state.

What Cabin Classes Are Available on Frontier Airlines Flights to Phoenix?

Frontier's standard Economy seats are arranged in a 3x3 configuration on Airbus A320neo and A321neo aircraft. Seat pitch is around 28 to 30 inches, which is tight but typical for ultra-low-cost carriers. No in-flight entertainment screens, no free snacks, and no free drinks. You get one free personal item that fits under the seat. Carry-on bags and checked luggage cost extra. Snacks, drinks, and Wi-Fi (where available) are all buy-on-board.

Stretch seats offer extra legroom, typically around 34 to 36 inches of seat pitch. They're located in exit rows and just behind the UpFront Plus section. These seats also offer a traditional recline function, which standard Economy seats don't have (those are pre-reclined). Stretch seats cost an additional fee, usually $15 to $49 depending on the route. A solid middle ground if you want more room without paying for the premium options.

UpFront Plus puts you in the first two rows of the aircraft, with the middle seat blocked so you get extra elbow room and personal space. You also get priority boarding (Zone 1) and are the first to deplane. The seat itself is the same as standard Economy, but the blocked middle and front-of-cabin position make a noticeable difference. Pricing is dynamic, typically $49 to $99. Frontier Miles Elite Gold members can upgrade for free at check-in if seats are available.

Frontier is rolling out its new First seating in 2026 on select A321neo aircraft. These seats feature a 2x2 configuration in the first two rows, replacing the 3x3 layout. The seats are wider with more shoulder room, made by Italian manufacturer Geven. They're pre-reclined (no adjustable recline) but offer significantly more personal space than any other option on the plane. No lie-flat option, no gourmet meals included, but it's a genuine step up from Economy. Frontier Miles Elite members can get complimentary upgrades based on status level.

Frontier Airlines Flights to Phoenix

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Frontier Airlines Flight Details and Travel Information for Flights to Phoenix

US Departure Airports for Frontier Airlines Flights to Phoenix

Denver International Airport (DEN)

Harry Reid International Airport (LAS)

Hartsfield-Jackson Atlanta International Airport (ATL)

San Diego International Airport (SAN)

Detroit Metropolitan Wayne County Airport (DTW)

Phoenix Airport Arrival Guide for Frontier Airlines Flights from the USA

Book Frontier Airlines Flights to Phoenix

Best Time to Book Frontier Airlines Flights to Phoenix

What Cabin Classes Are Available on Frontier Airlines Flights to Phoenix?

Frequently Asked Questions

Does Frontier fly nonstop to Phoenix?

When are Frontier flights to Phoenix cheapest?

Does Arizona observe Daylight Saving Time?

How long is the Frontier flight to Phoenix?

What cabin options does Frontier have to Phoenix?

How do I get from Phoenix Airport to Scottsdale?