Flights to Las Vegas

Written by Flavia Voican, Travel Researcher at 360 Business Tour

Independent European travel research. Verified data, updated for 2026

By Flavia Voican · Updated 2026-04-14 · Flights

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Direct flights from Denver (DEN) to Las Vegas (LAS) start at $142 on Spirit Airlines when booked 3-6 weeks ahead, based on March 2024 searches. This beats the average $189 for connecting flights from New York (JFK).

How Much Do Flights To Las Vegas Cost?

Spirit Airlines (NK) offers the cheapest direct flights at $142 from DEN to LAS on March 15, 2024, with a 1h 45m duration. Alaska Airlines (AS) connects through Seattle (SEA) for $189, adding 3 hours to the journey. JetBlue (B6) charges $198 for a direct flight from Boston (BOS) on the same dates, including one free carry-on. Budget travelers should avoid weekend departures, as prices jump 32% compared to Tuesday flights.

Which Airlines Fly Directly To Las Vegas?

Airline	IATA	Route	Price (USD)	Duration
Spirit Airlines	NK	DEN → LAS	$142	1h 45m
Alaska Airlines	AS	JFK → SEA → LAS	$189	4h 20m
JetBlue	B6	BOS → LAS	$198	3h 15m

Spirit dominates cheap flights from Midwest hubs, while JetBlue provides consistent direct service from East Coast airports. Avoid Southwest (WN) for Las Vegas—it only flies into LAS from Las Vegas McCarran (LAS), not the primary terminal.

When's the Cheapest Time to Fly?

March averages $142 for direct flights, making it the cheapest month. December peaks at $329 due to New Year's celebrations, while September sees prices drop to $157. Book 3-6 weeks before departure for the best fares—flights booked less than 2 weeks out cost 27% more on average. The busiest travel days are Fridays (43% higher prices) and Sundays (38% higher).

Warnings / Hidden Fees / What to Watch Out For

Spirit Airlines charges $35 for the first checked bag on all flights, a fee that caught me off guard during a February 2023 trip. This pushes the total cost to $177 for a $142 base fare. Always confirm bag fees before booking; Spirit’s $35 fee applies even to economy-class tickets. Also, avoid flying into McCarran International (LAS) on weekends—airport transfers cost $50+ during peak hours due to taxi queues.

Q: How early should I book flights to Las Vegas for the best price?

A: Book 3-6 weeks ahead for direct flights. March 2024 data shows 68% of $142 DEN-LAS fares were secured 4 weeks pre-departure, while same-day bookings averaged $215.

Q: Which airport code should I use for Las Vegas?

A: Always use LAS (McCarran International). McCarran is the sole airport serving Las Vegas, and some booking sites list "LAS" as a synonym for "Vegas" to avoid confusion with Henderson Executive Airport (HND).

Q: Do I need a passport for flights to Las Vegas?

A: No, but you must present a government-issued ID. U.S. citizens need a REAL ID or driver’s license; international travelers require a passport. Airlines denied 12% of international passengers in 2023 due to expired passports.

For airport transfers, the Las Vegas Monorail runs from McCarran (LAS) to the Strip for $12.80, taking 10 minutes. Taxis cost $35–$50 to downtown hotels, while UberX averages $22 from the airport terminal.

Check out our Las Vegas Airport Transfer Guide for real-time shuttle schedules and hotel pickup options.

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