✈️ Flight Guide: Syracuse (SYR) → Seattle (SEA)

Events such as CES (January in Las Vegas), major trade shows, music festivals, and sports events significantly affect flight demand to Harry Reid International Airport (LAS) from Seattle-Tacoma International Airport (SEA). CES typically drives January demand for select weekends, while conventions and residency shows can create short-term fare spikes. In Seattle, events like Seafair (summer) affect departure traffic and local ground transportation. Always cross-check event calendars and book well in advance if your trip overlaps major conventions.

The best time to fly from Seattle-Tacoma International Airport (SEA) to Harry Reid International Airport (LAS) for lower fares and milder crowds is typically September, October (early), and January–February. Midweek flights and off-peak hours (early morning or late evening) often yield the lowest prices. Avoid peak summer months (June–August) and major holidays unless you book well in advance. For event-driven travel, check Las Vegas convention calendars to avoid rate spikes.

For Seattle-Tacoma International Airport (SEA) to Harry Reid International Airport (LAS), nonstop flights are common and typically preferred due to short flight time (~2h45m–3h). Connecting itineraries can be cheaper occasionally, but add layover time and potential delay risk. Choose nonstop flights for fastest travel and fewer disruptions; opt for one-stop itineraries only if savings justify longer total travel time. Consider baggage transfer rules and minimum connection times when booking connecting flights.

Alaska Airlines frequently offers competitive nonstop schedules and strong West Coast connectivity from Seattle-Tacoma International Airport (SEA) to Harry Reid International Airport (LAS), with full-service amenities and loyalty benefits. Southwest often provides low base fares and free checked bags, making it attractive for budget travelers. Delta, American, and United offer multiple daily flights with differing loyalty perks and connection options. Compare fare classes, baggage allowances, and reroute policies when selecting the best airline for your priorities.

Winter: Expect rain and occasional snow impacts departing Seattle-Tacoma International Airport (SEA); allow extra time and opt for refundable fares during holiday periods. Spring: Take advantage of shoulder-season savings and milder Las Vegas weather for outdoor activities. Summer: Beat the heat at Harry Reid International Airport (LAS) with early flights and pre-booked air-conditioned transfers; expect higher fares and book early. Fall: Ideal window for lower fares and moderate weather—September and October are often the best value months. Always check carry-on and checked baggage rules across carriers and pack layers to accommodate Seattle’s damp climate and Las Vegas’ wide temperature swings.

Nonstop flight time between Seattle-Tacoma International Airport (SEA) and Harry Reid International Airport (LAS) averages about 2 hours 45 minutes to 3 hours, though winds and routing can affect duration. Multiple daily nonstop flights operate across carriers, with peak frequency in mornings and late afternoons. Red-eye and evening options are available for travelers wanting to maximize daytime hours in Las Vegas. Check airline timetables and real-time flight trackers for schedule updates and seasonal frequency changes.

To find cheap flights from Seattle-Tacoma International Airport (SEA) to Harry Reid International Airport (LAS), use flexible date searches, set fare alerts, and compare low-cost carriers like Southwest, Frontier, and basic-economy fares on major airlines. Midweek departures (Tuesday–Thursday) and early-morning flights typically deliver the lowest prices. Consider bundling flights with hotels or using points and miles for added savings. Rotating search terms like 'budget flights Seattle to Las Vegas' and 'discount airfare SEA LAS' helps capture varied deals.