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$326+ 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 11/13. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — ICN
Sep 3 — Sep 101
Thu 9/3
Thu 9/10
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 August 4, 2026.

This United Airlines deal was found by Cheapflights users on 8/3. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2710:40 am
SFO
-
ICN
Nonstop12h 20m
United Airlines
Thu 9/1011:30 am
ICN
-
SFO
Nonstop10h 40m
United Airlines
Deal found 8/3$686
This United Airlines deal was found by Cheapflights users on 7/30. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/2511:20 pm
SFO
-
ICN
1 stop24h 05m
United Airlines
Thu 10/2911:45 am
ICN
-
SFO
Nonstop10h 45m
United Airlines
Deal found 7/30$687
This United Airlines deal was found by Cheapflights users on 7/31. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2711:55 pm
SFO
-
ICN
Nonstop12h 25m
United Airlines
Tue 9/1511:30 am
ICN
-
SFO
Nonstop10h 40m
United Airlines
Deal found 7/31$688
This United Airlines deal was found by Cheapflights users on 8/3. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/93:00 pm
SFO
-
ICN
1 stop32h 25m
United Airlines
Tue 11/176:30 pm
ICN
-
SFO
1 stop37h 53m
United Airlines
Deal found 8/3$689
This Super.com deal was found by Cheapflights users on 8/2. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/185:00 pm
SFO
-
ICN
Nonstop12h 40m
AIR PREMIA
Sat 10/317:45 pm
ICN
-
SFO
Nonstop10h 35m
AIR PREMIA
Deal found 8/2$690
This United Airlines deal was found by Cheapflights users on 8/3. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/2811:45 pm
SFO
-
ICN
Nonstop12h 55m
United Airlines
Wed 11/116:30 pm
ICN
-
SFO
1 stop22h 27m
United Airlines
Deal found 8/3$691
This United Airlines deal was found by Cheapflights users on 7/30. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/2811:30 am
SFO
-
ICN
Nonstop12h 45m
United Airlines
Wed 11/46:30 pm
ICN
-
SFO
1 stop32h 00m
United Airlines
Deal found 7/30$692
This United Airlines deal was found by Cheapflights users on 8/1. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/2210:25 am
SFO
-
ICN
Nonstop12h 35m
United Airlines
Fri 11/136:30 pm
ICN
-
SFO
1 stop32h 00m
United Airlines
Deal found 8/1$693
This oojo deal was found by Cheapflights users on 7/30. 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.
Wed 9/305:00 pm
SFO
-
ICN
Nonstop12h 40m
AIR PREMIA
Wed 10/287:45 pm
ICN
-
SFO
Nonstop10h 35m
AIR PREMIA
Deal found 7/30$694
This Kiwi.com deal was found by Cheapflights users on 7/29. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/284:20 pm
SFO
-
ICN
Nonstop13h 00m
AIR PREMIA
Fri 11/67:45 pm
ICN
-
SFO
Nonstop10h 35m
AIR PREMIA
Deal found 7/29$695
This Kiwi.com deal was found by Cheapflights users on 8/1. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/285:00 pm
SFO
-
ICN
Nonstop12h 40m
AIR PREMIA
Wed 9/167:15 pm
ICN
-
SFO
Nonstop11h 00m
AIR PREMIA
Deal found 8/1$696
This FlightHub deal was found by Cheapflights users on 8/3. 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.
Tue 9/2212:30 pm
LAX
-
GMP
1 stop39h 20m
China Eastern
Tue 10/138:50 pm
GMP
-
LAX
1 stop29h 15m
China Eastern
Deal found 8/3$697

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 August 4, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$686
(United Airlines)

One-way from

$326
(Super.com)

Popular in

December

Cheapest in

February

Average price

$1,294

Good round-trip deal

$721 or less

Good one-way deal

$353 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
High demand for flights, 0% potential price rise
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($39 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in August 2026
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 August 4, 2026.
Use the filters below to find and compare flights from the United States to South Korea that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

San FranciscoIncheon

SFO - ICN

SFOICN

San Francisco

Tue 11/3

11:59 pm-4:25 pm

1 stop23h 26m

Incheon Intl

Fri 11/13

12:45 pm-6:30 am

Nonstop10h 45m

$687

San FranciscoIncheon

SFO - ICN

SFOICN

San Francisco

Sat 8/29

11:55 pm-4:20 am

Nonstop12h 25m

Incheon Intl

Thu 9/10

4:50 pm-11:40 am

Nonstop10h 50m

$688

San FranciscoIncheon

SFO - ICN

SFOICN

San Francisco

Wed 8/26

10:40 am-3:00 pm

Nonstop12h 20m

Incheon Intl

Thu 9/10

11:30 am-6:10 am

Nonstop10h 40m

$688

San FranciscoIncheon

SFO - ICN

SFOICN

San Francisco

Wed 8/26

10:40 am-3:00 pm

Nonstop12h 20m

Incheon Intl

Mon 9/14

4:50 pm-11:40 am

Nonstop10h 50m

$688

San FranciscoIncheon

SFO - ICN

SFOICN

San Francisco

Mon 8/31

11:55 pm-4:20 am

Nonstop12h 25m

Incheon Intl

Fri 9/11

11:30 am-6:10 am

Nonstop10h 40m

$688

San FranciscoIncheon

SFO - ICN

SFOICN

San Francisco

Mon 11/9

3:00 pm-4:25 pm

1 stop32h 25m

Incheon Intl

Tue 11/17

6:30 pm-3:23 pm

1 stop37h 53m

$689

San FranciscoIncheon

SFO - ICN

SFOICN

San Francisco

Wed 12/2

11:45 pm-5:40 am

Nonstop12h 55m

Incheon Intl

Wed 12/9

6:30 pm-9:30 am

1 stop32h 00m

$693

Los AngelesIncheon

LAX - ICN

LAXICN

Los Angeles Los Angeles

Tue 9/1

10:50 am-3:50 pm

Nonstop13h 00m

Incheon Intl

Wed 9/23

10:05 pm-5:20 pm

Nonstop11h 15m

$732

Los AngelesIncheon

LAX - ICN

LAXICN

Los Angeles Los Angeles

Mon 8/31

11:30 pm-4:30 am

Nonstop13h 00m

Incheon Intl

Thu 9/10

1:00 pm-8:20 am

Nonstop11h 20m

$743

Los AngelesIncheon

LAX - ICN

LAXICN

Los Angeles Los Angeles

Sat 8/29

10:50 am-3:50 pm

Nonstop13h 00m

Incheon Intl

Wed 9/16

10:05 pm-5:20 pm

Nonstop11h 15m

$784

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/3

Showing 1-10 of 60 resultsSorted by cheapest first
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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, April is the cheapest month in which you can book a flight from USA to South Korea (average of $948). Flying from USA to South Korea in December is currently the most expensive (average of $1,501). 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 August 4, 2026.

It’s typically best to fly out from USA to South Korea in the afternoon. Doing so could potentially save you 53% on the flight price compared to flying at noon, which is usually more expensive.

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 August 4, 2026.

The most flights from US0 to KR0 are scheduled on a Friday (20 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (19 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 159 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, AIR PREMIA have had the lowest number of delays on this route, with just 11% of flights being delayed.

How far ahead should I book a flight from USA to South Korea?

Booking 33 days in advance of your planned departure date is, on average, the best time to get cheap flights from USA to South Korea. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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 August 1, 2026.

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

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 August 4, 2026.
See what other customers who have flown with Korean Air,AIR PREMIA, andAsiana Airlines 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
1,222 reviews

Entertainment

8.2

Overall

8.4

Boarding

8.5

Crew

8.7

Food

8.1

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
1,222 reviews
Korean Air
8.4
Very good
1,222 reviews

Entertainment

8.2

Overall

8.4

Boarding

8.5

Crew

8.7

Food

8.1

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
8.1
Very good
102 reviews
Korean Air
8.4
Very good
1,222 reviews

Entertainment

8.2

Overall

8.4

Boarding

8.5

Crew

8.7

Food

8.1

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.
Asiana Airlines
8.1
Very good
553 reviews
Korean Air
8.4
Very good
1,222 reviews

Entertainment

8.2

Overall

8.4

Boarding

8.5

Crew

8.7

Food

8.1

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
7.8
Good
8,490 reviews
Korean Air
8.4
Very good
1,222 reviews

Entertainment

8.2

Overall

8.4

Boarding

8.5

Crew

8.7

Food

8.1

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
10,061 reviews
Korean Air
8.4
Very good
1,222 reviews

Entertainment

8.2

Overall

8.4

Boarding

8.5

Crew

8.7

Food

8.1

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 long is the flight from USA to South Korea?

    Airlines like United Airlines, AIR PREMIA, and China Eastern fly from USA to South Korea in about 13h. The time it takes to get you to your destination can typically vary by up to 21h 40m. Airlines will cover a distance of 5978 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 $55 on Philippine Airlines. 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, April is the cheapest month in which you can book a flight from USA to South Korea (average of $948). Flying from USA to South Korea in December is currently the most expensive (average of $1,501). 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

Browse thousands of different options on Cheapflights for your next trip

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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 August 4, 2026.
AirlineCheapestAverageFlexibilityOn-time
Philippine AirlinesCheapest$144Average$662FlexibilityNo cancel feeOn-time60%
WestJetCheapest$152Average$1,290FlexibilityNo cancel feeOn-time60%
Alaska AirlinesCheapest$296Average$838FlexibilityNo cancel feeOn-time75%
XiamenAirCheapest$346Average$703FlexibilityNo cancel feeOn-time49%
Air CanadaCheapest$371Average$1,202FlexibilityNo cancel feeOn-time67%
AIR PREMIACheapest$383Average$1,036FlexibilityNo cancel feeOn-timeN/A
Turkish AirlinesCheapest$449Average$1,069FlexibilityNo cancel feeOn-time77%
China SouthernCheapest$578Average$622FlexibilityNo cancel feeOn-time69%
DeltaCheapest$582Average$1,622FlexibilityNo cancel feeOn-timeN/A
Air ChinaCheapest$592Average$664FlexibilityNo cancel feeOn-time67%

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