Best Flights starting from $3,944
from$3,944business
Seattle (Any)
Thu, Sep 3
Roundtrip
Seoul (Any)
Thu, Sep 10
from$4,418business
Seattle (Any)
Tue, Sep 1
Roundtrip
Seoul (Any)
Tue, Sep 8
from$4,830business
Seattle (Any)
Wed, Sep 2
Roundtrip
Seoul (Any)
Wed, Sep 9
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Other Options for This Route
Other Destinations
Seattle (Any) to Las Vegas (Any) in September from $49
From $49
Seattle (Any) to New York (Any) in September from $150
From $150
Seattle (Any) to New York (JFK) in September from $159
From $159
Seattle (Any) to Honolulu (HNL) in September from $199
From $199
Seattle (Any) to Kalispell (FCA) in September from $232
From $232
Seattle (Any) to San Jose Cabo (SJD) in September from $234
From $234
Flights from Other Cities
Calgary (YYC) to Seoul (Any) in September from $371
From $371
Chicago (Any) to Seoul (Any) in September from $880
From $880
Boston (BOS) to Seoul (Any) in September from $1,004
From $1,004
Ottawa (YOW) to Seoul (Any) in September from $1,239
From $1,239
Nashville (BNA) to Seoul (Any) in September from $1,556
From $1,556
Los Angeles (Any) to Seoul (Any) in September from $3,263
From $3,263
✈️ Flight Guide: Seattle (Any) → Seoul (Any)
Complete travel information for your September journey
September is an excellent month to fly from Seattle (All Airports) (SEAA) to Seoul (All Airports) (SELA) due to generally stable fall schedules and fewer peak-summer travelers. Look for midweek departures for lower fares and monitor sales from carriers operating transpacific routes. Use primary keywords like 'Seattle to Seoul flights September' when searching, and consider nearby hubs—Vancouver, Portland, San Francisco, Los Angeles—to compare connecting fares. For best results, set fare alerts, book 3–8 weeks ahead, and confirm baggage and change policies. CTA: Search cheap flights from Seattle (All Airports) (SEAA) to Seoul (All Airports) (SELA) now and lock in September savings.
Departing from Seattle (Any) FAQs
Seattle (All Airports) (SEAA) refers to the full set of Seattle-area airports commonly used for commercial travel—principally Seattle–Tacoma International (SEA) and nearby regional airports when a search platform groups 'All Airports'. In September, travelers should check schedules for Seattle–Tacoma International (SEA) and nearby connections to ensure optimal departure times and transfer windows. Compare options on Google Flights or the airlines' sites for the best September departure choices.
To find cheap flights from Seattle (All Airports) (SEAA) to Seoul (All Airports) (SELA) for September travel, search at least 3–8 weeks in advance, set fare alerts on Google Flights and Skyscanner, and be flexible on midweek departures. Use combination of primary keywords like 'cheap Seattle to Seoul flights September' and secondary keywords such as 'budget airfare SEAA to SELA' in searches; consider one-stop itineraries and nearby alternate dates to reduce cost. Book when you see a fare drop and confirm baggage rules before purchase.
Direct nonstop flights from Seattle (All Airports) (SEAA) to Seoul (All Airports) (SELA) generally take about 10 to 11 hours, depending on wind and routing; one-stop itineraries with common layovers (e.g., Tokyo, San Francisco, Vancouver) can range from 13 to 18+ hours total. In September, seasonal winds and schedule adjustments may slightly change block times, so check the airline’s published flight time before booking.
Yes—major carriers typically operate direct flights between Seattle (All Airports) (SEAA) and Seoul (All Airports) (SELA) year-round, with frequent services increasing during peak travel seasons. In September, you can often find nonstop options on flag carriers and select international airlines; verify schedules and book early as availability can change with seasonal demand.
For trips from Seattle (All Airports) (SEAA) to Seoul (All Airports) (SELA), evening departures help you sleep on the plane and align more quickly with Seoul time; arriving in the morning or afternoon in Seoul eases jet lag recovery. In September, choose late-afternoon or evening flights when possible, and adjust sleep and light exposure before travel to minimize symptoms.
From Seattle (All Airports) (SEAA) you can easily access Vancouver, Portland, San Francisco, Los Angeles, and Anchorage for international connections or multi-city itineraries when traveling to Seoul (All Airports) (SELA). In September, these hubs often provide additional one-stop options and discounted connecting fares—check hub-specific sales and open-jaw itineraries for flexible routing.
September arrival to Seoul (All Airports) (SELA) is generally smooth with pleasant weather and full transport options. Prioritize arrivals at Incheon (ICN) for long-haul flights from Seattle (All Airports) (SEAA) to access fast AREX trains and efficient customs processing. For onward travel to Busan, Jeju, or Tokyo connections, compare domestic flights and KTX rail fares—book early for the best prices. CTA: Check real-time arrival schedules to Seoul (All Airports) (SELA) for September and plan transfers now.
Arriving at Seoul (Any) FAQs
Seoul (All Airports) (SELA) typically refers to the city’s main international gateways, primarily Incheon International Airport (ICN) and Gimpo International Airport (GMP); some searches also surface nearby regional options. For September arrivals, Incheon handles most long-haul flights and offers abundant ground transportation into central Seoul and other top destinations like Busan and Jeju. Choose arrival airport based on onward transit convenience and airline schedules.
From Seoul (All Airports) (SELA), travelers can reach central Seoul via AREX express train, airport limousine buses, taxis, and ride-hailing services; for longer trips, domestic flights and high-speed trains connect to Busan, Jeju, and Daegu. In September, schedules for trains and ferries operate normally with pleasant weather for onward travel—book KTX seats and domestic flights early to secure preferred times.
September in Seoul brings mild autumn weather with decreasing rainfall and comfortable daytime temperatures, making it ideal for sightseeing after arrival at Seoul (All Airports) (SELA). Travelers should still monitor typhoon advisories early in the month and expect slightly busier weekends during local festivals. Pack layers and check local transport notices for any schedule changes.
International arrivals at Seoul (All Airports) (SELA) should have passports valid beyond their stay and any required visas prepared in advance; expect standard immigration checks and automated eGates for eligible passport holders. During September, peak arrival times may slightly lengthen processing, so if traveling during busy festival weekends, allow extra time for arrivals and baggage pickup.
For affordable transfers from Seoul (All Airports) (SELA) to Busan or Jeju in September, compare low-cost domestic flights from Gimpo and Incheon with high-speed KTX train services to Busan. Booking domestic carriers and KTX tickets 2–4 weeks in advance typically yields lower fares; also check budget airlines and ferry schedules for Jeju to secure the best prices.
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Events & Festivals in September — Seoul (All Airports) (SELA) Arrivals and Seattle (All Airports) (SEAA) Departures
September in Seoul often features cultural events and the national holiday Chuseok (movable; sometimes in September), which can increase demand for flights arriving at Seoul (All Airports) (SELA). Travelers from Seattle (All Airports) (SEAA) should check festival dates and avoid peak domestic travel days or book early. Similarly, Seattle hosts fall events that can affect airport traffic and parking. CTA: Review event calendars for September and adjust SEAA–SELA travel plans to avoid busy travel days.
Best Time to Fly — Seattle (All Airports) (SEAA) to Seoul (All Airports) (SELA)
For September travel from Seattle (All Airports) (SEAA) to Seoul (All Airports) (SELA), the best time to fly for cost savings is midweek (Tuesday–Thursday) and during off-peak hours. For comfort and reduced jet lag, evening departures that arrive in Seoul in the morning are ideal. Booking 3–8 weeks ahead often secures the best fares and seat selection. CTA: Compare midweek September flights now to capture lower fares and optimal arrival times.
Direct vs. Connecting Flights — SEAA to SELA in September
Nonstop flights from Seattle (All Airports) (SEAA) to Seoul (All Airports) (SELA) save time—typically 10–11 hours—and reduce transfer risk, but they can be pricier than one-stop itineraries. Connecting flights via hubs like Vancouver, Tokyo or San Francisco may lower fares and expand schedule options but add layover time. In September, evaluate total travel time, price difference, and luggage transfer policies to choose the best option. CTA: Compare nonstop and one-stop September itineraries now to decide which suits your schedule and budget.
Airline Comparison — Carriers Serving Seattle (All Airports) (SEAA) to Seoul (All Airports) (SELA)
Major carriers on the Seattle (All Airports) (SEAA) to Seoul (All Airports) (SELA) route typically include full-service international airlines offering nonstop flights with premium cabins and included checked baggage, while budget carriers may offer competitive connecting fares but charge extra for bags. In September, compare total cost (fare + extras), on-board amenities, and schedule convenience. Loyalty program members should check award availability and upgrade options. CTA: Compare airline fares and policies for SEAA to SELA in September to find the best balance of value and comfort.
Seasonal Travel Tips for September — SEAA to SELA
In September, pack layers for Seoul (All Airports) (SELA) as temperatures shift to autumn and evenings cool. Monitor typhoon updates early in the month and confirm flexible booking or travel protection if schedules might be affected. For departures from Seattle (All Airports) (SEAA), expect mild weather but check traffic and airport parking availability. Book refundable or changeable fares if you anticipate date changes due to festivals or weather. CTA: Prepare your September itinerary now—check weather forecasts and secure flexible fares for SEAA to SELA travel.
Flight Time & Schedules — Seattle (All Airports) (SEAA) to Seoul (All Airports) (SELA)
Typical nonstop flight time from Seattle (All Airports) (SEAA) to Seoul (All Airports) (SELA) is approximately 10–11 hours, with one-stop itineraries ranging from 13 to 18+ hours depending on the connection. In September, airlines often maintain stable schedules after the summer peak; expect multiple daily options including overnight departures that help with time-zone adjustment. Check flight status and published timetables before travel to confirm gate and departure times. CTA: View current September schedules for SEAA to SELA and select flights that align with your itinerary.
Cheap Flights — Seattle (All Airports) (SEAA) to Seoul (All Airports) (SELA) in September
To find cheap flights from Seattle (All Airports) (SEAA) to Seoul (All Airports) (SELA) in September, use flexible-date searches and set alerts for price dips. Consider one-stop itineraries through Vancouver, Tokyo, or San Francisco to lower fares; midweek departures often yield the best savings. Use synonyms like 'budget airfare' and 'low-cost tickets' when searching, and always check full price (fare + baggage) before booking. CTA: Start a fare alert for SEAA to SELA September travel and compare options across carriers.