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ICN SFO · 5,646 mi · 10h 55m

Seoul (Incheon) to San Francisco Flights

Everything you need to know about the ICN → SFO international route — flight time, airlines, fares, and booking tips. Track your flight in real time with TripTrack.

$510-$2230 round trip · 1-2 daily flights · Updated March 2026


✈️ Route Overview

Key facts for the Seoul (Incheon) to San Francisco route

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Distance
5,646 miles (9,086 km)
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Avg Flight Time
10h 55m
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Timezone Change
-16 hours
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Daily Flights
1-2
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Typical Fare
$510-$2230 round trip
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Red-Eye Available
Yes — overnight flights available

🛫 Airlines on This Route

Carriers operating ICN → SFO flights

Airline Notes
Cathay Pacific Primary carrier on this route
Japan Airlines Operates this route
ANA Operates this route
Korean Air Operates this route
Asiana Airlines Operates this route
China Southern Operates this route

💡 Booking Tips

How to get the best deal on Seoul (Incheon) to San Francisco flights

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Best Days to Fly

Midweek departures (Tuesday–Thursday) are generally least expensive

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Fare Range

$510-$2230 round trip. Book 3–6 weeks in advance for domestic routes, 2–3 months for international.

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Red-Eye Flights

✓ Available

Overnight flights on this route can save on hotel costs and maximize your time at the destination.

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Track Your Flight

Once booked, TripTrack automatically imports your flight from your confirmation email. Real-time gate changes and delay alerts — no manual entry needed.


🧳 Travel Tips for This Route

Practical advice from frequent travelers on the ICN → SFO route

  • 1 Cathay Pacific offers premium products on Hong Kong routes.
  • 2 Japan Airlines and ANA are consistently rated among the world's best airlines.
  • 3 At 5,646 miles, consider Premium Economy for extra comfort on this long-haul flight.


📱 Real-Time Flight Tracking

Track Your ICN → SFO Flight — Automatically

TripTrack monitors your flight in real time — gate changes, delays, and departure updates sent to your phone the moment they happen. Connect your Gmail once and your trips appear automatically. No manual entry.


Frequently Asked Questions — Seoul (Incheon) to San Francisco Flights

How long is the flight from Seoul (Incheon) to San Francisco?

The average flight time from Seoul (Incheon) (ICN) to San Francisco (SFO) is 10h 55m. This is an estimate including taxi, climb, and descent time — actual flight time may vary based on winds and routing.

Which airlines fly from Seoul (Incheon) to San Francisco?

Airlines operating the ICN to SFO route include Cathay Pacific, Japan Airlines, ANA and 3 more. Check each airline's website for current schedules and availability.

How far is Seoul (Incheon) from San Francisco?

The great-circle distance from Seoul (Incheon) to San Francisco is 5,646 miles (9,086 km). This is the straight-line distance — actual flight paths may be slightly longer.

What are the cheapest days to fly from Seoul (Incheon) to San Francisco?

Midweek departures (Tuesday–Thursday) are generally least expensive. Fares on this route typically range $510-$2230 round trip.

Is there a time zone change flying from Seoul (Incheon) to San Francisco?

Yes — there is a -16 hours when flying from Seoul (Incheon) to San Francisco. TripTrack automatically shows local times for both your departure and arrival airports.

Are there red-eye flights from Seoul (Incheon) to San Francisco?

Yes, overnight (red-eye) flights are available on the ICN to SFO route. These can be a great way to save on hotel costs and maximize time at your destination.

How can I track my Seoul (Incheon) to San Francisco flight in real time?

TripTrack automatically tracks your ICN to SFO flight — showing real-time gate changes, delays, and departure updates. Connect your Gmail once and your booking confirmation is imported automatically. Available free on iOS and Android.