✈️ Flight Guide: St Louis (STL) → Las Vegas (LAS)

Major events in Las Vegas—such as CES in January, Electric Daisy Carnival (EDC) in May/June, big conventions in October, and New Year's celebrations—drive up demand and economy fares at Harry Reid International Airport (LAS). Arrival cities also host festivals and sporting events that affect pricing; for example, music festivals in Los Angeles and major sports playoffs can create fare surges. Check event calendars for both departure and arrival cities when planning travel to avoid inflated ticket prices.

The best time to fly from Harry Reid International Airport (LAS) for cheap economy fares is typically during shoulder seasons—January through February and September through November. Midweek travel (Tuesdays and Wednesdays) and early-morning or late-night departures usually offer lower economy fares. Avoid major Las Vegas event dates and holiday weekends when fares spike. Use flexible-date searches and fare alerts to capitalize on seasonal dips.

Direct flights from Harry Reid International Airport (LAS) offer convenience and shorter total travel time but can be pricier; connecting flights often save money in economy class but increase risk of delays and missed connections. For short domestic hops (e.g., to Los Angeles or Phoenix), nonstop flights are usually affordable; for more distant or competitive markets, a one-stop itinerary can reduce the fare. If booking connecting flights, leave adequate layover time and verify minimum connection times at the transfer airport.

Budget carriers like Spirit, Frontier and Allegiant often offer the lowest base fares from Harry Reid International Airport (LAS) but include ancillary charges for baggage, seat selection and carry-on. Southwest provides competitive economy pricing with two free checked bags and flexible change policies, making it a strong value for many travelers. Legacy carriers (American, Delta, United) provide broader networks and loyalty benefits but may cost more upfront. Compare total trip cost including baggage and seat fees to find the best overall economy value.

Winter (Dec–Feb): Book early for holiday travel; January is often cheapest. Spring (Mar–May): Avoid peak spring-break weeks and target midweek travel. Summer (Jun–Aug): Expect peak fares—book months in advance and consider redeyes or alternate airports. Fall (Sep–Nov): Shoulder season offers the best economy bargains; travel midweek for lowest fares. Across seasons, pack light to avoid baggage fees, enroll in airline loyalty or credit card programs for baggage benefits, and use TSA PreCheck or CLEAR at Harry Reid International Airport (LAS) to shorten security wait times.

Typical flight durations from Harry Reid International Airport (LAS) to common economical destinations: Los Angeles ~1 hour, Phoenix ~1 hour 10 minutes, San Diego ~1 hour 15 minutes, Salt Lake City ~1 hour 30 minutes, Denver ~2 hours 10 minutes. Many routes feature multiple daily departures, with higher frequency on the West Coast and fewer flights on smaller markets. For cheapest economy fares, target off-peak departures (early morning or late evening) and midweek schedules. CTA: compare schedules across carriers and pick off-peak flights to save on economy fares.

To find cheap economy flights from Harry Reid International Airport (LAS), combine fare alerts, flexible-date searches, and comparison across legacy and low-cost carriers like Southwest, Spirit, Frontier, and Allegiant. Use city-pair flexibility (Los Angeles, Phoenix, San Diego, San Francisco), set price thresholds, and consider alternate airports to maximize savings. Booking 3–8 weeks in advance for domestic routes and 6–12 weeks for longer hauls often yields optimal economy fares. CTA: set a price alert today to capture the next LAS economy fare sale.