Submit feedbackComplete travel information for your September journey
In September, Seattle (All Airports) (SEAA) to Los Angeles (All Airports) (LAXA) travel benefits from lower summer crowds and consistent schedules. Airlines increase shuttle-like frequency between these Pacific Northwest and Southern California markets; expect several nonstop options daily. For travelers from Bellevue, Tacoma, Everett or Portland, connecting ground transport is straightforward—book earlier mornings for the best on-time performance. Use fare alerts and flexible-date search to capture midweek savings and consider early-bird or late-evening flights to take advantage of lower fares.
In September, travel to Seattle (All Airports) (SEAA) is generally smooth thanks to mild weather and lower summer crowds. Options include light rail to SeaTac (if using SEA proper), airport shuttles, rideshare services, and regional trains/buses from downtown Seattle, Bellevue, Tacoma and Everett. Book ground transport in advance for early morning flights to ensure timely arrivals.
September usually sees reduced peak-summer peaks so standard domestic check-in and security waits at Seattle (All Airports) (SEAA) average 20–45 minutes, but mornings (06:00–09:00) can be busier. Enroll in TSA PreCheck or arrive 90 minutes for domestic and 2–3 hours for international departures to be safe. Use the airport's real-time wait-time tools or airline notifications for the most accurate estimates.
Yes—major carriers operate frequent nonstop flights between Seattle (All Airports) (SEAA) and Los Angeles (All Airports) (LAXA) in September, with multiple daily departures. Nonstop flights are offered by carriers such as Alaska Airlines, Delta, Southwest, American and United; frequency increases on weekends and around Labor Day. Book early for the best seats and fares.
September in Seattle is typically mild and dry compared with summer, with average highs around the mid-60s to low-70s°F (18–22°C) and lower rainfall than the fall months. Visibility is generally good for flights, but occasional marine layer/fog can affect early-morning operations; check flight status before leaving for the airport. Pack a light jacket for airport and evening temperatures.
Yes—September is a shoulder season between summer travel and autumn business travel; fares often dip after Labor Day but can spike around holiday weekends. For the best deals on Seattle to Los Angeles flights in September, book 3–8 weeks in advance and monitor fare alerts for flash sales. Use flexible dates and sign up for airline newsletters to capture promotional fares.
Travelers departing Seattle (All Airports) (SEAA) often originate from nearby hubs like Bellevue, Tacoma, Everett and Vancouver (WA/BC) or connect from Portland for expanded schedules. These cities provide convenient ground connections and allow flexible routing to Los Angeles (All Airports) (LAXA) for leisure trips to Anaheim, Santa Monica, Long Beach and San Diego. Consider multi-city or open-jaw itineraries if visiting neighboring destinations.
September arrivals to Los Angeles (All Airports) (LAXA) typically enjoy warm, dry days and strong flight reliability after the summer peak. Use FlyAway buses, rideshare pick-up zones and on-site car rentals to reach Santa Monica, Hollywood, Anaheim or Long Beach quickly; consider pre-booking a shuttle for group travel. Keep an eye on event calendars—sports fixtures, concerts and conventions can increase ground transportation demand—and sign up for airline alerts to receive head-up notices of gate changes or delays.
Arriving at Los Angeles (All Airports) (LAXA) in September is often pleasant due to warm, dry weather and reduced summer congestion after Labor Day. Expect multiple arrival terminals depending on your carrier; major nearby destinations like Santa Monica, Long Beach, Anaheim (Disney), Hollywood and downtown LA are easily accessible via rideshare, shared shuttle, or car rental. Always check terminal maps and real-time arrival notifications to streamline pickup or onward travel.
Travel times vary: LAXA to downtown Los Angeles usually takes 25–45 minutes off-peak and 45–90 minutes during rush hours, while Santa Monica is typically 20–40 minutes depending on traffic. In September, late-summer traffic patterns can still be heavy during weekday mornings and evenings; consider off-peak arrival times or using FlyAway buses and rail connections where available for faster, predictable transfers. Plan extra time if you have tight connections or events in nearby Anaheim or Long Beach.
Seattle: Bumbershoot (Labor Day weekend) is one of the Pacific Northwest's largest music and arts festivals, drawing visitors who often fly into Seattle (All Airports) (SEAA). Seahawks home games (NFL season begins in September) can also increase demand for flights and hotels. Los Angeles: The LA County Fair often runs in September in Pomona and attracts families and international attendees; conventions and late-summer concerts in Hollywood and downtown LA add travel demand. If attending these events, book flights and accommodations 6–10 weeks in advance for the best choice and rates.
The best time to fly between Seattle (All Airports) (SEAA) and Los Angeles (All Airports) (LAXA) in September is midweek (Tuesday–Thursday) and outside morning/evening rush hours to reduce delays and save on fares. Book about 3–8 weeks ahead for domestic sales; last-minute deals sometimes appear but are riskier. For on-time performance, flights departing mid-morning or late evening often experience fewer air-traffic delays than peak business-commute departures.
Nonstop flights between Seattle (All Airports) (SEAA) and Los Angeles (All Airports) (LAXA) save time and are often competitively priced in September due to high route frequency. Connecting flights can be cheaper during off-peak days or offer more flexible schedules if you need specific timing, but they add layover risk and longer total travel time. If speed and convenience are priorities—especially for short business trips—choose nonstop; if saving money or earning status points is the goal, a well-timed connecting itinerary may be worthwhile.
Alaska Airlines: Strong West Coast network with multiple daily nonstop flights between Seattle (All Airports) (SEAA) and Los Angeles (All Airports) (LAXA). Known for good on-time performance, free checked-bag policy for some fares and competitive loyalty benefits in September. Delta Air Lines: Reliable schedule options and premium cabin upgrades; often offers early- and late-day departures. Southwest Airlines: Value-focused fares with two free checked bags and frequent promotions—good for budget travelers and families. American and United: Offer competitive service and connections via their hubs; useful if you need mileage credit or specific alliance benefits. Compare total price (fare + baggage) and schedule convenience when selecting.
Pack layers—Seattle mornings can be cool while Los Angeles remains warm into the evening. Monitor regional air-quality alerts in late summer, as wildfire smoke can occasionally affect visibility and comfort; consider N95 masks if air quality drops. Allow extra transfer time for arrivals around major events and check rideshare and FlyAway bus schedules in advance. For smoother travel, enroll in TSA PreCheck, confirm carry-on and checked-bag rules for your carrier, and download airline apps for mobile boarding and real-time updates.
Nonstop flight time from Seattle (All Airports) (SEAA) to Los Angeles (All Airports) (LAXA) typically ranges from 2 hours 30 minutes to 3 hours, depending on winds and routing. In September, expect early morning waves (06:00–09:00), mid-day service (11:00–14:00) and evening flights (17:00–21:00) to accommodate business and leisure travelers. Carriers often operate multiple daily frequencies; check airline timetables for specific departure windows, and consider off-peak midweek options for shorter security lines and fewer delays.
To find cheap flights from Seattle (All Airports) (SEAA) to Los Angeles (All Airports) (LAXA) in September, search 3–8 weeks ahead and prioritize midweek departures (Tuesday–Thursday) for lower fares. Use fare comparison tools and set price alerts for SEAA→LAXA routes; consider low-cost carriers like Southwest and the economy fares of legacy carriers. Be flexible with nearby airports (e.g., Long Beach or Burbank when flying into the LA region) and try early-morning or red-eye options for the best savings. Leverage rewards points or companion fares, and check for seasonal promo codes or flash sales around late-August and early-September.
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Book your economy class flight from Seattle (Any) to Los Angeles (Any)and save money on your travel. Compare all flight options to find the best deal for your september trip.
Starting from $144
Book your economy class flight from Seattle (Any) to Los Angeles (Any)and save money on your travel. Compare all flight options to find the best deal for your september trip.
Starting from $144
Book your economy class flight from Seattle (Any) to Los Angeles (Any)and save money on your travel. Compare all flight options to find the best deal for your september trip.
Starting from $144
Book your economy class flight from Seattle (Any) to Los Angeles (Any)and save money on your travel. Compare all flight options to find the best deal for your september trip.
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Book your economy class flight from Seattle (Any) to Los Angeles (Any)and save money on your travel. Compare all flight options to find the best deal for your september trip.
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September can bring lingering summer traffic and occasional regional events that increase demand for flights and ground transport, but weather is generally stable and favorable for travel. Wildfire smoke in California some years can cause visibility or air-quality advisories; monitor local news and airline alerts for any operational impacts. For the smoothest arrival, check arrival terminal, baggage claim updates, and pre-book ground transportation.
From Los Angeles (All Airports) (LAXA), travelers commonly continue to Anaheim (Disney/Convention Center), Santa Monica, Hollywood, Long Beach, San Diego and Palm Springs. These cities are major leisure and business destinations, reachable by shuttle, rail, rideshare or rental car. Use regional transit passes or multi-stop itineraries to maximize time and savings when visiting multiple Southern California spots in September.
Aim for mid-morning (09:00–11:30) or early afternoon (13:00–15:30) arrivals to avoid peak road congestion and morning operational rush; evenings can also be convenient if you prefer nighttime city access. If connecting to other flights, leave at least 90 minutes for domestic-to-domestic transfers and 2–3 hours for international connections because terminals and security lanes vary. Use airline connection guarantees and check terminal-to-terminal transfer times ahead of travel.