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$329+ Cheap flights from the United States to South Korea

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/1. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — ICN
Jan 17 — Jan 241
Sat 1/17
Sat 1/24
1 adult, Economy
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Cheap flight deals from USA to South Korea

Cheapest flights from USA to South Korea
Explore the most affordable flight options available from USA to South Korea. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 18, 2025.

This Gotogate deal was found by Cheapflights users on 12/17. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/312:30 pmSFO - ICN
Nonstop13h 00mAIR PREMIA
Sun 1/186:55 pmICN - SFO
Nonstop10h 35mAIR PREMIA
Deal found 12/17$650
This CrystalTravel deal was found by Cheapflights users on 12/16. 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/282:30 pmSFO - ICN
Nonstop13h 00mAIR PREMIA
Sat 1/176:55 pmICN - SFO
Nonstop10h 35mAIR PREMIA
Deal found 12/16$760
This SmartFares deal was found by Cheapflights users on 12/16. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/3111:50 pmSFO - ICN
Nonstop13h 05mAsiana Airlines
Tue 1/208:50 pmICN - SFO
Nonstop10h 10mAsiana Airlines
Deal found 12/16$779
This oojo deal was found by Cheapflights users on 12/16. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/2911:50 pmSFO - ICN
Nonstop13h 05mAsiana Airlines
Wed 1/218:50 pmICN - SFO
Nonstop10h 10mAsiana Airlines
Deal found 12/16$785
This FlightHub deal was found by Cheapflights users on 12/17. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/292:30 pmSFO - ICN
Nonstop13h 00mAIR PREMIA
Wed 1/216:55 pmICN - SFO
Nonstop10h 35mAIR PREMIA
Deal found 12/17$800
This FlightHub deal was found by Cheapflights users on 12/16. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/2912:00 pmSFO - ICN
1 stop34h 20mChina Eastern
Wed 1/2112:55 pmICN - SFO
1 stop37h 05mChina Eastern
Deal found 12/16$808
This Trip.com deal was found by Cheapflights users on 12/17. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/289:50 amLAX - ICN
Nonstop13h 30mMultiple Airlines
Wed 3/48:10 amICN - LAX
1 stop16h 25mMultiple Airlines
Deal found 12/17$823
This Tourvis deal was found by Cheapflights users on 12/17. 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 Tourvis is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/254:42 pmSFO - ICN
1 stop32h 53mHawaiian Airlines
Sun 1/258:35 pmICN - SFO
1 stop31h 07mHawaiian Airlines
Deal found 12/17$823
This Alaska Airlines deal was found by Cheapflights users on 12/16. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/2410:13 amSFO - ICN
1 stop15h 22mMultiple Airlines
Thu 1/88:35 pmICN - SFO
1 stop19h 28mMultiple Airlines
Deal found 12/16$826
This Alaska Airlines deal was found by Cheapflights users on 12/16. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/234:42 pmSFO - ICN
1 stop32h 53mMultiple Airlines
Thu 1/88:35 pmICN - SFO
1 stop18h 23mMultiple Airlines
Deal found 12/16$832
This Gotogate deal was found by Cheapflights users on 12/17. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/312:30 pmSFO - ICN
Nonstop13h 00mMultiple Airlines
Sun 1/184:15 pmICN - SFO
2 stops44h 25mMultiple Airlines
Deal found 12/17$841
This Mytrip deal was found by Cheapflights users on 12/16. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/2912:00 pmSFO - ICN
2 stops29h 55mMultiple Airlines
Sat 1/246:55 pmICN - SFO
Nonstop10h 35mMultiple Airlines
Deal found 12/16$853

Find flight deals from USA to South Korea

Keep the following information in mind while searching for USA to South Korea flight deals. Data was last updated December 18, 2025.

Most accurate provider

Mytrip
3 stars

Most trusted provider

Mytrip
3 stars

Round-trip from

$570
(CrystalTravel)

One-way from

$329
(Kiwi.com)

Popular in

December

Cheapest in

January

Average price

$1,633

Good round-trip deal

$337 or less

Good one-way deal

$352 or less
Provider with most accurate pricing for New York (NYC)-Seoul (SEL) flight deals.
Search Deals
Provider most trusted by Cheapflights users for New York (NYC)-Seoul (SEL) flights.
Search Deals
From USA to South Korea
Search Deals
One-way flight from USA to South Korea
Search Deals
Highest demand for flights based on searches. 0% potential increase in price ($4 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($36 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals
Price to beat on a round-trip flight from USA to South Korea.
Search Deals
Price to beat on a one-way flight from USA to South Korea.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from USA to South Korea that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 18, 2025.
Use the filters below to find and compare flights from the United States to South Korea that are best for you.

Fly from

USA

Fly to

South Korea

Route

Depart

Return

Price

San FranciscoIncheon

SFO - ICN

SFOICN

San Francisco

Thu 1/22

11:45 pm-5:40 am

Nonstop12h 55m

Incheon Intl

Thu 1/29

12:45 pm-6:30 am

Nonstop10h 45m

$661

San FranciscoIncheon

SFO - ICN

SFOICN

San Francisco

Mon 2/23

2:30 pm-8:30 pm

Nonstop13h 00m

Incheon Intl

Sun 3/15

6:55 pm-1:30 pm

Nonstop10h 35m

$661

San FranciscoIncheon

SFO - ICN

SFOICN

San Francisco

Thu 1/15

10:30 am-4:15 pm

Nonstop12h 45m

Incheon Intl

Sat 1/24

6:00 pm-11:35 am

Nonstop10h 35m

$661

San FranciscoIncheon

SFO - ICN

SFOICN

San Francisco

Thu 3/12

10:30 am-3:15 pm

Nonstop12h 45m

Incheon Intl

Mon 3/23

5:00 pm-11:35 am

Nonstop10h 35m

$661

San FranciscoIncheon

SFO - ICN

SFOICN

San Francisco

Thu 2/26

11:45 pm-5:40 am

Nonstop12h 55m

Incheon Intl

Fri 3/20

11:45 am-6:30 am

Nonstop10h 45m

$661

San FranciscoIncheon

SFO - ICN

SFOICN

San Francisco

Sun 3/1

11:45 pm-5:40 am

Nonstop12h 55m

Incheon Intl

Sat 3/14

5:00 pm-11:35 am

Nonstop10h 35m

$661

San FranciscoIncheon

SFO - ICN

SFOICN

San Francisco

Tue 2/24

10:30 am-4:15 pm

Nonstop12h 45m

Incheon Intl

Tue 3/17

11:45 am-6:30 am

Nonstop10h 45m

$661

San FranciscoIncheon

SFO - ICN

SFOICN

San Francisco

Sat 1/17

11:45 pm-5:40 am

Nonstop12h 55m

Incheon Intl

Sun 2/1

6:00 pm-11:35 am

Nonstop10h 35m

$661

San FranciscoIncheon

SFO - ICN

SFOICN

San Francisco

Sat 2/28

6:30 am-6:35 pm

1 stop19h 05m

Incheon Intl

Fri 3/6

8:35 pm-10:56 pm

1 stop19h 21m

$676

SeattleIncheon

SEA - ICN

SEAICN

Seattle/Tacoma Intl

Sat 1/17

11:25 am-4:30 pm

Nonstop12h 05m

Incheon Intl

Wed 1/28

8:05 pm-1:20 pm

Nonstop10h 15m

$884

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/15

Showing 1-10 of 60 results
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Best time to book a flight from USA to South Korea

Have a flexible travel schedule? Discover the best time to fly to South Korea from USA with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from the United States to South Korea

What is the cheapest month to book a flight from USA to South Korea?

Currently, November is the cheapest month in which you can book a flight from USA to South Korea (average of $181). Flying from USA to South Korea in June is currently the most expensive (average of $531). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from US to KR?

Find hourly flight availability from USA to South Korea. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 18, 2025.

It’s typically best to fly out from USA to South Korea in the afternoon. Doing so could potentially save you 34% on the flight price compared to flying in the morning, which is usually more expensive.

What is the cheapest day to fly from USA to South Korea?

Use this chart to determine the cheapest time to fly round-trip from USA to South Korea. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their USA to South Korea flight should consider departing on Wednesday afternoons when fares are most often at their lowest. Sunday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from USA to South Korea

Explore weekly flight availability from USA to South Korea. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated December 18, 2025.

The most flights from US0 to KR0 are scheduled on a Monday (21 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (14 on average).

How often are flights from the United States to South Korea delayed?

About 23% of weekly flights between United States and South Korea have experienced delays in the past year, with the average delay time being 193 minutes.

What is the most punctual flight time for the United States to South Korea flights?

Historically, flights departing at night are less likely to be delayed, whereas flights leaving in the evening tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Tuesday tends to have the lowest number of delays on this route, whereas Sunday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on the United States to South Korea flights?

Over the last year, Hawaiian Airlines have had the lowest number of delays on this route, with just 15% of flights being delayed.

Reviews of airlines servicing South Korea

Get insights into the airlines that provide service to South Korea. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to South Korea. Reviews last updated December 18, 2025.
See what other customers who have flown with Korean Air, AIR PREMIA, and Delta from the United States to South Korea have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Korean Air
8.4
Very good
1,186 reviews

Crew

8.7

Boarding

8.5

Overall

8.4

Food

8.1

Entertainment

8.2

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Korean Air
8.4
Very good
1,186 reviews
Korean Air
8.4
Very good
1,186 reviews

Crew

8.7

Boarding

8.5

Overall

8.4

Food

8.1

Entertainment

8.2

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
AIR PREMIA
8.3
Very good
72 reviews
Korean Air
8.4
Very good
1,186 reviews

Crew

8.7

Boarding

8.5

Overall

8.4

Food

8.1

Entertainment

8.2

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Delta
7.9
Good
8,005 reviews
Korean Air
8.4
Very good
1,186 reviews

Crew

8.7

Boarding

8.5

Overall

8.4

Food

8.1

Entertainment

8.2

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
United Airlines
7.4
Good
9,091 reviews
Korean Air
8.4
Very good
1,186 reviews

Crew

8.7

Boarding

8.5

Overall

8.4

Food

8.1

Entertainment

8.2

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Air Canada
7.1
Good
10,534 reviews
Korean Air
8.4
Very good
1,186 reviews

Crew

8.7

Boarding

8.5

Overall

8.4

Food

8.1

Entertainment

8.2

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.

Related info for your journey

Find useful and relevant information for your journey from USA to South Korea. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How popular is this USA to South Korea flight route?

    Flights from United States to South Korea have been viewed 1,017 times in the past calendar month.

  • How long is the flight from USA to South Korea?

    Airlines like United Airlines, Delta, and Cathay Pacific fly from USA to South Korea in about 12h 05m. The time it takes to get you to your destination can typically vary by up to 21h 55m. Airlines will cover a distance of 5200 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from USA to South Korea one-way?

    One-way options have recently been found by users for as low as $110 on Air China. Other airlines that offer cheap prices include Hawaiian Airlines from $151 and Alaska Airlines from $168 one-way.

  • Can I find deals for flights from USA to South Korea that include hotel bookings?

    Yes. In addition to deals on USA to South Korea flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from USA to South Korea?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from USA to South Korea.

  • Can I find deals for business class flights from USA to South Korea?

    Yes. Cheapflights offers flight deals from USA to South Korea by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from USA to South Korea?

    Currently, November is the cheapest month in which you can book a flight from USA to South Korea (average of $181). Flying from USA to South Korea in June is currently the most expensive (average of $531). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for USA to South Korea

See prices for flight routes from nearby airports that may be better suited for you.
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Top 10 airlines flying from USA to South Korea

Discover the top 10 airlines that operate flights from USA to South Korea. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
WestJetCheapest$181Average$1,172FlexibilityNo cancel feeOn-time60%
XiamenAirCheapest$347Average$615FlexibilityNo cancel feeOn-time49%
Philippine AirlinesCheapest$372Average$757FlexibilityNo cancel feeOn-time60%
Hawaiian AirlinesCheapest$478Average$853FlexibilityNo cancel feeOn-time85%
China SouthernCheapest$578Average$611FlexibilityNo cancel feeOn-time69%
Air ChinaCheapest$599Average$722FlexibilityNo cancel feeOn-time67%
China EasternCheapest$622Average$731FlexibilityNo cancel feeOn-time62%
Japan AirlinesCheapest$630Average$1,347FlexibilityNo cancel feeOn-time79%
Singapore AirlinesCheapest$651Average$848FlexibilityNo cancel feeOn-time81%
Alaska AirlinesCheapest$674Average$1,025FlexibilityNo cancel feeOn-time75%

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