Best Flights starting from $1,054
from$1,054economy
Seattle (Any)
Tue, Sep 1
Roundtrip
Seoul (Any)
Tue, Sep 8
from$1,113economy
Seattle (Any)
Wed, Sep 2
Roundtrip
Seoul (Any)
Wed, Sep 9
from$1,123economy
Seattle (Any)
Thu, Sep 3
Roundtrip
Seoul (Any)
Thu, Sep 10
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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 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
Seattle (Any) to Orlando (MCO) in September from $254
From $254
Seattle (Any) to Nashville (BNA) in September from $255
From $255
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 depart from Seattle (All Airports) (SEAA) for Seoul (All Airports) (SELA) thanks to shoulder-season fares and comfortable weather. Use fare alerts and flexible date searches to capture lower prices after Labor Day, and compare nonstop options to minimize travel time. For departures from the broader Seattle area—Bellevue, Tacoma, Everett, Portland—factor in transit times to SEAA terminals and check Link Light Rail schedules. Book early-morning or late-evening flights to take advantage of lower demand and smoother airport processing, and subscribe to airline newsletters for targeted 'Seattle to Seoul September flight deals' and promo codes.
Departing from Seattle (Any) FAQs
To find cheap flights from Seattle (All Airports) (SEAA) to Seoul (All Airports) (SELA) in September, search multiple fare comparison sites, set price alerts, and be flexible with midweek departures. September sees shoulder-season demand—book 4–8 weeks in advance for the best balance of price and availability, and consider nearby departure airports like Portland or Vancouver if fares from SEAA are high. Use primary keywords such as 'cheap flights Seattle to Seoul September' and compare airlines directly to capture promotional fares.
Nonstop flight time between Seattle (All Airports) (SEAA) and Seoul (All Airports) (SELA) averages about 10 to 11 hours eastbound, depending on winds and routing. Flights with one connection usually take 14–18 hours door-to-door, including layover time; common connection hubs include Tokyo (NRT/HND), Vancouver (YVR), and San Francisco (SFO). Check schedules and flight duration when booking to match your travel preferences and to optimize for 'flight time Seattle to Seoul'.
Yes — several carriers operate nonstop seasonal or year-round services between Seattle (All Airports) (SEAA) and Seoul (All Airports) (SELA), though schedules can vary in September. Airlines sometimes adjust frequency after summer; always confirm current nonstop options and times on official carrier sites. For the best results, search for 'direct flights Seattle to Seoul September' and compare times and fares across airlines.
From Seattle (All Airports) (SEAA), travelers can use Link Light Rail, shuttle buses, ride-shares, taxis, and private car services to reach the terminals; allow extra time during September events or Seahawks games in the region. Parking deals and off-site shuttle services are often cheaper if you’re leaving a car; for an eco-friendly option, consider public transit to downtown Seattle, Bellevue, or Tacoma. Always factor in peak congestion windows and include 'Seattle airport transfer September' when searching for directions and drop-off points.
Transit visa requirements depend on your nationality and the layover country; U.S. passport holders typically do not need a South Korea transit visa for airport transfers, but always verify for your specific passport. If you plan to leave the sterile transit area (e.g., to visit Tokyo during a long layover), check the destination country's visa rules. Refer to official embassy pages and airline guidance and search 'transit visa Seattle to Seoul September' to confirm requirements well before travel.
Baggage allowances differ by airline and fare class; most international carriers allow one carry-on and one checked bag but fees vary for extra bags. For September travel, expect slightly higher checked-bag volumes—label luggage clearly, verify size/weight limits, and consider travel insurance for valuable items. Search 'baggage allowance Seattle to Seoul airline' and check your carrier's policy to avoid surprises at check-in.
September arrivals at Seoul (All Airports) (SELA) benefit from cooler weather and vibrant cultural events, but you should watch for Chuseok-related travel peaks that can increase airport and train station crowds. Incheon International Airport (ICN) offers direct AREX train service, airport limousine buses, taxis, and pre-booked private transfers into central Seoul, while Gimpo (GMP) serves fast domestic connections to Busan and Jeju. For seamless entry, prepare passport and visa documents in advance, reserve a pocket Wi-Fi or prepaid SIM, and use real-time transport apps to check AREX and KTX schedules. If you're connecting onward to destinations like Busan, Jeju, Suwon or Pohang, booking domestic legs in advance will save time and often money.
Arriving at Seoul (Any) FAQs
On arrival at Seoul (All Airports) (SELA) in September you can expect pleasant, mild weather and fewer summer tourists, making airport transfers and immigration generally quicker. Incheon International (ICN) handles most long-haul international flights while Gimpo (GMP) serves domestic routes; allow extra time if you must transfer between them. Search 'arriving Seoul in September' for up-to-date customs procedures and consider pre-booking airport limousines, AREX train, or private transfers for the fastest route to central Seoul.
Entry requirements for South Korea can change; in September, typical requirements include a valid passport and any applicable visas based on nationality. Health or entry advisories may be updated seasonally—check official embassy pages and airline notices before travel. Search 'Seoul entry requirements September' and follow official government or embassy sources to ensure compliance.
From Seoul (All Airports) (SELA), domestic flights from Gimpo (GMP) to Jeju (CJU) and Busan (PUS) are frequent; alternatively, high-speed KTX trains from Seoul Station (accessible via AREX from Incheon) connect to Busan in roughly 2.5–3 hours. September is a popular time for domestic travel—book ahead for weekends and holiday periods. Use 'Seoul to Busan September' and 'Seoul to Jeju flights September' in searches to find the best domestic connections.
September in Seoul hosts events like Chuseok (Korean Thanksgiving) when travel spikes and transportation is busier; dates vary each year, so this can significantly impact arrival processing and ground travel. If your September trip coincides with major festivals or national holidays, expect higher demand for trains, buses, and rental cars. Search 'Seoul September events' and book transfers and accommodations early to avoid peak congestion.
In September, currency exchange counters and ATMs are widely available at Incheon and Gimpo airports, though rates may be better in central Seoul; most counters accept major credit cards. Prepaid SIM cards and pocket Wi-Fi kiosks operate year-round—purchase at arrival or reserve online to pick up at the airport. Use keywords like 'Seoul airport SIM card September' or 'best currency exchange ICN September' when planning communication and cash needs.
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September Events & Festivals — Impact on SEAA to SELA Travel
Chuseok (Korean Thanksgiving) often occurs in September or early October and can cause spikes in domestic and international travel around Seoul (All Airports) (SELA), affecting seat availability and ground transport. In the Pacific Northwest, Seattle events (college football, Seahawks games, regional conferences) may influence departure patterns from Seattle (All Airports) (SEAA). When planning September travel, check festival calendars and book flights and ground transport early. Keywords to use include 'Chuseok flights impact September', 'Seattle game day airport crowds', and 'plan travel around festivals'.
Best Time to Fly SEAA to SELA — September Guide
The ideal time to fly from Seattle (All Airports) (SEAA) to Seoul (All Airports) (SELA) in September is midweek and mid-month when leisure travel demand dips and prices can be lower. Early September (just after Labor Day) often yields the best bargains, whereas travel during Chuseok or adjacent weekends tends to be more expensive. For comfort, choose departures that align with your sleep schedule—overnight flights reduce daytime jet lag on arrival. Use keywords like 'best time to fly Seattle Seoul September' and monitor fare calendars to pick optimal travel dates.
Direct vs Connecting Flights: Seattle (All Airports) (SEAA) to Seoul (All Airports) (SELA) in September
Nonstop flights from Seattle (All Airports) (SEAA) to Seoul (All Airports) (SELA) save time and reduce transfer risk—expect 10–11 hours flight time and potentially higher fares. Connecting flights can be significantly cheaper, especially when routing through hubs like Vancouver, Tokyo, or San Francisco, but add layover time and potential visa/transit complexities. In September, compare both options: if you value speed and simplicity, prioritize nonstop; if on a budget and flexible with timing, a one-stop itinerary might offer major savings. Search 'nonstop Seattle to Seoul September' and 'Seattle Seoul one-stop through Tokyo' to evaluate options.
Airline Comparison for SEAA to SELA in September — Carriers, Comfort & Value
Major carriers on the SEAA–SELA route include those offering nonstop services and reputable one-stop options via Pacific hubs. When comparing in September, evaluate ticket price, basic economy limitations, seat pitch, in-flight Wi-Fi, meal service, and loyalty program benefits. For business travelers, premium cabin availability and schedule reliability are critical; leisure travelers may prioritize price and baggage allowances. Use phrases like 'best airline Seattle to Seoul September' and cross-check latest reviews and official airline pages for up-to-date equipment and schedules.
Seasonal Travel Tips for SEAA to SELA — September Packing, Weather & Logistics
Pack layers for September travel: Seattle departures may start cool and rainy while Seoul typically offers crisp, mild days and cool evenings. Bring a light waterproof jacket, comfortable walking shoes for city streets in Myeongdong and Gangnam, and universal power adapters. For flight logistics, keep digital copies of travel documents, download local transport apps (KakaoMap, Naver Map), and pre-book airport transfers during holiday weeks. Use keyword-rich phrases like 'Seattle to Seoul packing September', 'what to wear in Seoul September', and 'airport transfer ICN September' when searching for prep tips.
Flight Time & Schedules: Seattle (All Airports) (SEAA) to Seoul (All Airports) (SELA) in September
Typical nonstop flights from Seattle (All Airports) (SEAA) to Seoul (All Airports) (SELA) run about 10–11 hours eastbound. If you choose one-stop itineraries through Tokyo (NRT/HND), Vancouver (YVR), or San Francisco (SFO), plan for 14–20 hour total travel times depending on layover lengths. In September, carriers may reduce peak-season frequencies, so early-morning or red-eye departures can offer more availability and lower prices. Check airline timetables and consider time-of-day preferences to reduce jet lag—arriving in the evening in Seoul often makes customs and transfers faster.
Cheap Flights SEAA to SELA in September — Deals, Alerts & Money-Saving Tips
To find cheap September flights from Seattle (All Airports) (SEAA) to Seoul (All Airports) (SELA), use a mix of metasearch engines, airline newsletters, and flexible-date calendars. Mondays and Tuesdays often show lower international fares; look for late-September departures after weekend leisure traffic declines. Consider flying from nearby airports like Portland (PDX) or Vancouver (YVR) and compare total travel cost including ground transfers. Enroll in price alerts, apply airline miles or credit card points for international taxes, and watch for flash sales on transpacific routes. Use primary keywords like 'cheap Seattle to Seoul September' and LSI phrases such as 'affordable transpacific airfare', 'shoulder season flight deals', and 'nonstop Seoul bargains' across your searches.