Flights from Seattle to Seoul
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From $834 · Prices update daily
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The quick answer
Flights from Seattle to Seoul start around $834 round-trip. Main carrier: WestJet. Cheapest month to fly: August. Travel authorization required (ESTA-style) (South Korea).
Price calendar — next 60 days
★ Cheapest: $834 on Sat, Aug 29 · WS
Lowest return fares · Prices update daily · Final price confirmed at booking
Price calendar — Seattle to Seoul
Month-by-month lowest fares. Green = cheapest dates.
Flying to Seoul? Compare from other US cities
Sometimes a nearby airport is cheaper. See Seoul fares from other departure cities.
South Korea essentials
🟡 Travel authorization required (ESTA-style) · up to 90 days
K-ETA may be required; check the latest status before travel.
Full Seoul visa guide →🆘 Emergency
112 (police) · 119 (ambulance/fire)
💱 Currency
South Korean Won (₩)
🕐 Time zone
UTC+9
🗣️ Language
Korean
🔌 Plugs
Type C/F · 220V
🚗 Driving
Right side
💡 Tipping
Not expected
📞 Dial code
+82
🏛️ US Embassy
Seoul · +82 2-397-4114
Entry rules can change — always confirm with official sources before booking.
Stay connected in Seoul
Skip roaming fees — get a local eSIM before you land. Works in 200+ countries and activates instantly, so you’re online the moment you touch down.
Travel insurance
Protect your Seattle to Seoul trip against delays, cancellations, and medical emergencies. US travelers can compare plans from top insurers.
Airport transfer in Seoul
Pre-book your ride into Seoul. Fixed price, meet & greet, and a driver waiting at arrivals — no meter anxiety after a long flight.
Flight delayed or cancelled?
If your Seattle to Seoul flight was delayed more than 3 hours or cancelled, you may be entitled to up to €600 in compensation under EU/UK rules — even if you flew a non-EU airline. Free to check, no win no fee.
More resources
Seattle to Seoul — frequently asked
How much is a flight from Seattle to Seoul?+
Fares start around $834 round-trip. Prices update daily across 800+ airlines.
What is the cheapest month to fly Seattle to Seoul?+
August typically has the lowest fares.
Are there direct flights from Seattle to Seoul?+
This route is usually served by connecting flights. Use the search above to check for any direct options on your dates.
Which airlines fly from Seattle to Seoul?+
Carriers on this route include WestJet. Compare them side by side in the search above.
Do US citizens need a visa for South Korea?+
Travel authorization required (ESTA-style) for stays up to 90 days. K-ETA may be required; check the latest status before travel.
What currency is used in South Korea?+
The South Korean Won (KRW, ₩). The emergency number is 112 (police) · 119 (ambulance/fire).
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