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Find cheap Korean Air flights to Seoul

CMH — SEL
Aug 27 — Sep 31
Thu 8/27
Thu 9/3
1 adult, Economy
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Find Korean Air flight deals to Seoul

Cheapest Korean Air flights from USA to Seoul
Explore the most affordable Korean Air flight options available from USA to Seoul. Find the lowest fares with prices last updated on July 28, 2026.

This eDestinos deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/211:10 pm
SFO
-
ICN
Nonstop12h 10m
Korean Air
Sun 8/234:00 pm
ICN
-
SFO
Nonstop11h 00m
Korean Air
Deal found 7/26$813
This eDestinos deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/104:55 pm
SFO
-
ICN
1 stop19h 45m
Korean Air
Sat 8/294:00 pm
ICN
-
SFO
Nonstop11h 00m
Korean Air
Deal found 7/26$814
This eDestinos deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/281:10 pm
SFO
-
ICN
Nonstop12h 10m
Korean Air
Sat 9/57:40 pm
ICN
-
SFO
1 stop28h 21m
Korean Air
Deal found 7/25$819

Flights to Seoul with Korean Air at a glance

Find detailed information about Korean Air flights from USA to Seoul. Explore the options provided by Korean Air to plan your journey from USA to Seoul. Data last updated July 28, 2026.

Popular in

December

Cheapest in

February

Average price

$1,474

Round-trip from

$813

One-way from

$432

Good round-trip deal

$719 or less

Good one-way deal

$4,288 or less
Highest demand for flights to Seoul with Korean Air; 7% potential price increase.
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Best time to find cheap flights to Seoul with Korean Air; 2% potential price drop.
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Average price for flights to Seoul with Korean Air (round-trip).
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Korean Air
  • Korean Air
  • 8/21-8/23
  • Nonstop
  • 23h 10m total
  • USA to Seoul
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Korean Air
  • Korean Air
  • 10/18
  • 1 total stop
  • 22h 00m total
  • USA to Seoul
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Price to beat on a round-trip flight from the United States to Seoul with Korean Air.
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Price to beat on a one-way flight from the United States to Seoul with Korean Air.
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Cheapflights Insights

Find cheap Korean Air flights to Seoul

How long is the flight to Seoul with Korean Air?

On average, Korean Air flights from the United States to Seoul take 13 hours 31 minutes. Flights to Seoul from other popular cities in the United States will vary in length. Below are a few examples of popular routes and their flight times.

Korean Air weekly flight availability to Seoul

The most flights to Seoul operated by Korean Air are scheduled on a Monday (26 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (25 on average).

When is the best time to book a flight to Seoul with Korean Air?

The best time to book a flight to Seoul with Korean Air is 80 days before departure. On average, fares are higher if you book 4 days before departure.

FAQs about flights to Seoul with Korean Air

  • Which airport do Korean Air flights arrive at when travelling to Seoul?

    Korean Air flights on this route tend to land at Incheon Intl Airport.

  • Is Korean Air the cheapest airline for a flight to Seoul?

    Flight prices will depend on many factors like date, time and cabin class so it is worth comparing flights before booking. Based on Cheapflights data the cheapest average return price for flights to Seoul tends to be with Frontier.

  • Are there alternative airlines other than Korean Air that fly to Seoul?

    AIR PREMIA, Delta and Asiana Airlines all fly to Seoul and offer an alternative to Korean Air.

  • How much is a flight to Seoul with Korean Air?

    The average price for a return flight with Korean Air is $1,489; with a one-way flight around $1,043.

See more FAQs

Reviews of Korean Air

See what Cheapflights users have to say about their Korean Air experience.
Korean Air
8.4
Very good
1,221 reviews
Overview

Food

8.1

Crew

8.7

Boarding

8.5

Comfort

8.3

Entertainment

8.2

Popular Korean Air flights

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Airports serving Seoul

Book a flight to or from one of these Seoul airports.
Flights to Gimpo Intl
Flights to Incheon Intl
Flights from Gimpo Intl
Flights from Incheon Intl