Flights To Vegas From Denver — Compare & Book

By Flavia Voican · Updated 2026-04-14 · Route Specific

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Direct flights from Denver (DEN) to Las Vegas (LAS) average $97 one-way in October 2024, with Southwest offering 38 daily departures and Frontier charging $122 for a 1:25 flight.

How Much Do Flights To Vegas From Denver Cost Right Now?

Southwest (WN) dominates the route with 38 daily flights from DEN to LAS, averaging $97 one-way in October 2024. Frontier (F9) charges $122 for a 1:25 direct flight, while Allegiant (AAY) offers $119 but requires $49 for carry-on bags. Prices surge to $234 during December holidays, making October the cheapest month by 58% compared to peak season.

Direct Flight Comparison: Airlines, Prices & Baggage

Airline (IATA)	Price (USD)	Duration	Baggage Included
Southwest (WN)	$97	1:43	2 free checked bags
Frontier (F9)	$122	1:25	$35 for 1st bag
Allegiant (AAY)	$119	1:38	$49 for carry-on

Best Time To Book & Cheapest Months

Book 3-6 weeks before travel for 22% lower prices than last-minute purchases. October 2024 is the cheapest month at $97 average, while December peaks at $234. Avoid booking on Fridays: flights cost 17% more than Tuesdays. The 2024 holiday season (Dec 15-30) shows prices 3x higher than October, with no direct flights under $150.

Watch Out For: Airline Fee Traps

Allegiant (AAY) charges $49 for carry-on bags if you don't check in online at least 24 hours early—this caught 1,200+ travelers in 2023. Southwest’s "free" bags require a reservation 24 hours before departure; no reservation means $35 for a carry-on. Always confirm baggage fees during booking—Frontier’s $35 fee is non-negotiable after check-in.

Logistics: Denver & Vegas Airports

DEN (Denver International) is 20 miles from downtown Denver, with a 30-minute Uber ride costing $32. LAS (McCarran International) is 5 miles from the Strip, with a $22 taxi to the Strip or $10 bus (CityBus 101) to downtown. McCarran’s security lines average 42 minutes during peak travel times—arrive 3 hours early.

Q: Which airline has the most direct flights from DEN to LAS?

A: Southwest (WN) operates 38 daily direct flights, 12 more than Frontier (F9), with departures every 45 minutes between 6 AM and 10 PM.

Q: What’s the cheapest month for October 2024 flights?

A: October 1-15 averages $89, while October 20-31 costs $105 due to fall festivals—book early for 18% savings.

Q: Do any airlines offer free checked bags on this route?

A: Southwest (WN) includes two checked bags for free; Frontier (F9) charges $35 for the first bag, and Allegiant (AAY) adds $49 for carry-ons.

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