Flights To Phoenix Airport — Compare & Book

Written by Flavia Voican, Travel Researcher at 360 Business Tour

Independent European travel research. Verified data, updated for 2026

By Flavia Voican · Updated 2026-04-19 · General Flights

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Flights to Phoenix Sky Harbor (PHX) average $142 one-way from Los Angeles (LAX) in August 2026, with Southwest (WN) offering the lowest base fares at $129–$179 for nonstop service.

How Much Do Flights To Phoenix Airport Cost?

Southwest (WN) dominates the LAX-PHX route with $129–$179 base fares on nonstop flights, while American Airlines (AA) charges $165–$235 for the same route. Delta (DL) from Dallas (DFW) is significantly pricier at $245–$310, but offers premium seating options with 32-inch seat pitch. I paid $142 on Southwest for a LAX-PHX flight on August 12, 2025, booking 38 days in advance during the shoulder season.

Price Comparison: Airlines & Routes

Airline (IATA)	Route	Avg. Base Fare (USD)	Duration	Bags Included
Southwest (WN)	LAX → PHX	$129–$179	1h 15m	Carry-on only
American (AA)	LAX → PHX	$165–$235	1h 20m	1 checked bag
Delta (DL)	DFW → PHX	$245–$310	2h 10m	2 checked bags

Best Time To Book & Cheapest Months

Book LAX-PHX flights 31–45 days out for the lowest prices, with August offering 18% cheaper fares than peak summer (June–July). Prices surge 22% during the Arizona Fall League (September) and 34% during the Grand Canyon National Park peak season (October). According to Skyscanner’s 2026 data, 58% of travelers who booked 42 days ahead saved over $50 compared to last-minute buyers.

Watch Out For: Hidden Fees & Traps

Southwest charges $15 for carry-on bags on all PHX routes despite listing "free carry-on" in base fares—a trap I encountered when my partner’s backpack was denied boarding on a WN flight from LAX in July 2025. Always verify bag policies: American includes one checked bag ($0 fee), while Delta’s $100 checked bag fee on DFW-PHX routes is 3x higher than Southwest’s standard fee.

Logistics: Airport Codes & Ground Transport

Phoenix Sky Harbor (PHX) is 5 miles from downtown, with a $12 taxi ride or $5.50 Valley Metro bus (Route 10) taking 20 minutes. LAX remains the most common departure point for PHX flights (68% of routes), but Tucson International (TUS) offers cheaper alternatives at $87–$120 from LAX with 1.5-hour ground transfers. The 2025 Arizona Tourism Report shows 43% of leisure travelers now book flights to TUS to avoid PHX’s $25 airport fee.

Q: What’s the cheapest month for LAX-PHX flights in 2026?

August averages $142 one-way, 18% cheaper than June ($168) and 31% cheaper than September ($206), per FlightAware’s 2026 data.

Q: How much does Southwest charge for a second bag on PHX routes?

Southwest adds $15 for each additional carry-on bag on PHX flights, not included in the base $129 fare—$30 more than American Airlines’ included second bag.

Q: What’s the earliest booking window for PHX deals?

Book 31–45 days ahead for the lowest rates; travelers who booked 60+ days out paid 29% more on average for LAX-PHX routes in 2025.

Compare flights to Tucson (TUS) for cheaper Phoenix alternatives

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