Submit feedbackComplete travel information for your September journey
September is a prime shoulder-season month to fly from Salt Lake City International Airport (SLC) to Seattle-Tacoma International Airport (SEA). With average nonstop flight times around 1 hour 55 minutes and daily frequencies on major carriers, travelers enjoy milder fares and pleasant Seattle weather ideal for outdoor activities. To secure the best September deals from Salt Lake City to Seattle, set fare alerts, compare Delta Air Lines, Alaska Airlines, and Southwest flights, and consider midweek departures. If you’re connecting to Park City, Provo, or Ogden after departing SLC, pre-book ground transfers or a rental car to save time. For quick access to downtown Seattle from SEA, use the Link light rail, rideshares, or rental cars—plan for slightly busier traffic on Seattle-area event weekends. Book now to lock in shoulder-season prices and enjoy fewer crowds in both cities.
A nonstop flight from Salt Lake City International Airport (SLC) to Seattle-Tacoma International Airport (SEA) typically takes about 1 hour 55 minutes to 2 hours. Flight time can vary slightly by wind conditions and chosen flight path, but most carriers schedule this route as a two-hour segment—perfect for quick business trips or weekend getaways in September. Check real-time flight status before departure for accurate arrival estimates.
September is a shoulder season for travel between Salt Lake City International Airport (SLC) and Seattle-Tacoma International Airport (SEA), often offering lower airfares than summer—especially midweek. To find cheap flights in September, book 3–8 weeks in advance, use fare alerts, and be flexible with departure days; early-morning and late-evening departures frequently show the best prices. Compare carriers like Delta Air Lines, Alaska Airlines, and Southwest for competitive fares and watch for flash sales.
Salt Lake City International Airport (SLC) offers multiple ground-transport options including shuttle services, rideshares (Uber/Lyft), taxis, TRAX light rail connections via S Line and local shuttles, and rental cars. For Park City, many travelers prefer pre-booked shuttles or rental cars because public transit routes take longer; Provo and Ogden are also easily accessible by car. September traffic is generally moderate, but allow extra time on holiday weekends like Labor Day.
Yes—multiple carriers operate nonstop flights between Salt Lake City International Airport (SLC) and Seattle-Tacoma International Airport (SEA) in September, with several daily frequencies. Major carriers such as Delta Air Lines and Alaska Airlines typically offer nonstop options; Southwest often provides competitive nonstop flights as well. Always confirm schedules during booking since frequency may vary by day of the week and airline.
At Salt Lake City International Airport (SLC) in September, aim to arrive at least 90 minutes before domestic departures and 2 hours for busier periods like holiday weekends. TSA wait times are typically moderate in early September but can spike around Labor Day or major conferences in town. Use TSA PreCheck if eligible to save time, check your airline’s mobile check-in, and factor in additional time for checked baggage drop if traveling with larger luggage.
Yes—September is an excellent month to fly from Salt Lake City International Airport (SLC) to Seattle-Tacoma International Airport (SEA) for outdoor activities. Seattle enjoys mild, often sunny early-fall weather—ideal for hiking in the Cascades, visiting Olympic National Park, or enjoying waterfront activities. Salt Lake City travelers can also use SLC as a gateway to fall events and outdoor recreation in both Utah and Washington.
Arriving at Seattle-Tacoma International Airport (SEA) in September is convenient thanks to reliable Link light rail service and abundant rideshare options. The month offers mild, often sunny weather and fewer tourists than summer, making it ideal for exploring nearby destinations like Bellevue, Tacoma, Everett, Mount Rainier, and ferry access to Bainbridge Island. For faster airport-to-city travel, use the Link light rail or pre-arrange a shuttle if heading to suburbs; rideshares are plentiful but may surge during event weekends. Whether you’re visiting for University of Washington football, a music festival, or a Pacific Northwest getaway, book accommodations early for popular weekends and pack layers for changing coastal and mountain conditions.
Seattle-Tacoma International Airport (SEA) is connected to downtown Seattle by the Link light rail, which runs frequently and offers a cost-effective 30–40 minute trip to areas like University District and Westlake Center. Rideshares, taxis, shuttles, and rental cars are also widely available; rideshare pickup zones are clearly marked outside the terminal. September generally has mild weather, so ground transfers are convenient, but allow extra time during special events and Seahawks or University of Washington home games.
September in Seattle tends to be mild and one of the driest months of the year, with average daytime highs in the mid-60s to low 70s Fahrenheit (18–22°C) and cooler evenings. Showers are less frequent than in winter, but carry a light rain jacket and layers for early mornings or coastal winds. This comfortable weather makes September ideal for outdoor sightseeing, hiking in the Cascades, or waterfront walks after flying into Seattle-Tacoma International Airport (SEA).
From Seattle-Tacoma International Airport (SEA) you can quickly reach downtown Seattle, Bellevue, Tacoma, Everett, Snoqualmie, and Ferries to Bainbridge Island. Seattle is also a gateway to Vancouver, B.C., Portland (via short flights or drive), and outdoor areas like Mount Rainier and Olympic National Park. Many visitors combine a trip to Seattle with nearby wine regions, Whidbey Island, or the San Juan Islands—September is great for milder weather and fewer summer crowds.
For domestic flights arriving at Seattle-Tacoma International Airport (SEA) from Salt Lake City International Airport (SLC), standard domestic baggage claim procedures apply—no customs is required. If you have a connecting international leg or checked baggage to an international destination, confirm with your airline at check-in. SEA has multiple baggage carousels and baggage services desks for lost or delayed luggage; report missing items promptly to the airline.
During September, Seattle-Tacoma International Airport (SEA) can see increased passenger volume around Labor Day, local festivals like Bumbershoot (if scheduled), and University of Washington football weekends. Expect slightly longer wait times for ground transportation and popular car rental counters during big event weekends. Plan extra time for transfers, use online check-in where possible, and consider off-peak arrival times to avoid crowds.
To save on taxis and rideshares from Seattle-Tacoma International Airport (SEA), compare Link light rail fares (the most economical), pre-book airport shuttles, or split rides with fellow travelers. Use rideshare apps off-peak for lower surge pricing and check for airport ride discounts or promo codes. If traveling to Bellevue or suburban destinations, consider car rentals if you plan multiple day trips—sometimes renting is cheaper than repeated rideshares.
September in Seattle often features cultural and music events, university football games, and outdoor weekend festivals that draw visitors via Seattle-Tacoma International Airport (SEA). Bumbershoot (when scheduled around Labor Day), live music at the Seattle Center, and University of Washington Huskies home games can increase local demand—plan for higher hotel rates and busier ground transportation on event weekends. The milder early-fall weather is also ideal for outdoor markets and coastal activities. Check event dates before booking your SLC→SEA September trip and reserve airport transfers early for busy weekends.
The best time to fly from Salt Lake City International Airport (SLC) to Seattle-Tacoma International Airport (SEA) is during the September shoulder season: fewer crowds, pleasant weather in Seattle, and competitive airfares. For optimal pricing and reliability, book midweek departures (Tuesday–Thursday) and choose early-morning flights to reduce delay risk. If your itinerary includes weekend activities or major events, secure fares several weeks in advance to avoid spikes. Use flexible-date search tools to spot the cheapest travel windows in September.
For most travelers, nonstop flights from Salt Lake City International Airport (SLC) to Seattle-Tacoma International Airport (SEA) are preferable due to the short distance (about two hours) and convenience—nonstops minimize travel time and reduce the risk of missing connections. Connecting itineraries may be cheaper on some dates but usually add several hours and increase the chance of delays. In September, prioritize nonstop options on Delta Air Lines or Alaska Airlines for the fastest door-to-door time; choose connecting flights only when significant savings justify the longer travel time. CTA: Compare nonstop schedules now to find the quickest SLC → SEA options for September.
Delta Air Lines: Strengths include hub connectivity at Salt Lake City International Airport (SLC), frequent nonstop schedules to Seattle-Tacoma International Airport (SEA), and solid loyalty benefits for SkyMiles members. Alaska Airlines: Great West Coast network with strong service into SEA, competitive fares, and Mileage Plan perks; often preferred for Seattle-area routes. Southwest Airlines: Known for flexible change policies and free checked bags; check nonstop availability as it varies seasonally. Choose Delta or Alaska for best flight frequency and on-time performance in September; choose Southwest if you prioritize baggage flexibility and refundable fare structures. Compare current fares across these carriers to find the best balance of price and convenience.
Pack layers: Seattle in September can be sunny by day and cool at night—bring a light rain jacket, breathable layers, and comfortable walking shoes for city exploration. Airport timing: arrive 90 minutes before domestic departures at Salt Lake City International Airport (SLC) and account for possible event-related queues at Seattle-Tacoma International Airport (SEA) on big weekends. Luggage and logistics: take advantage of Southwest’s free checked-bag policy if traveling with gear for outdoor trips, or use TSA PreCheck for faster security at SLC. Book ground transport ahead for event weekends in Seattle and consider off-peak travel times to avoid rush-hour traffic on the I-5 corridor. CTA: Pack smart and book transfers early to enjoy a stress-free September trip from SLC to SEA.
Nonstop flights between Salt Lake City International Airport (SLC) and Seattle-Tacoma International Airport (SEA) typically last about 1 hour 55 minutes to 2 hours. Schedules in September generally include multiple departures throughout the day—early morning flights around 6–8 AM, midday options, and evening services—offered by Delta Air Lines, Alaska Airlines, and Southwest Airlines. For the most reliable travel, choose early-morning departures to minimize potential delays and connecting risks; if you prefer later flights for flexibility, watch for increased prices during holiday weekends. Always verify your flight's exact schedule with the airline prior to travel.
To find cheap flights from Salt Lake City International Airport (SLC) to Seattle-Tacoma International Airport (SEA) in September, search 3–8 weeks ahead and monitor midweek departures (Tuesdays/Wednesdays). Set fare alerts on Google Flights or Kayak, compare nonstop options on Delta Air Lines, Alaska Airlines, and Southwest, and check low-cost carriers’ sale pages directly. Use flexible-date tools, clear cookies or use incognito browsing when comparing fares, and redeem frequent-flier miles or credit-card rewards for the best value. For immediate bookings, consider early-morning flights which often have lower demand and fares. Bookable CTA: Sign up for fare alerts now to capture the best September deals on SLC → SEA flights.