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Cheap flights from the United States to Seoul from $337

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from the United States to Seoul departing on 8/31. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from the United States to Seoul

Recent round-trip flight deals from the United States to Seoul

AIR PREMIA Logo
3:30 pm - 8:30 pmSFO-ICN
13h 00mnonstop
AIR PREMIA Logo
6:20 pm - 1:00 pmICN-SFO
10h 40mnonstop
$604AIR PREMIA
Find Deal
Fri, Aug 22 - Mon, Sep 15
AIR PREMIA Logo
3:30 pm - 8:30 pmSFO-ICN
13h 00mnonstop
AIR PREMIA Logo
6:20 pm - 1:00 pmICN-SFO
10h 40mnonstop
$606AIR PREMIA
Find Deal
Fri, Aug 22 - Mon, Sep 15
United Airlines Logo
11:45 pm - 4:20 amSFO-ICN
12h 35mnonstop
United Airlines Logo
4:50 pm - 11:35 amICN-SFO
10h 45mnonstop
$612United Airlines
Find Deal
Thu, Sep 25 - Mon, Sep 29
United Airlines Logo
10:35 am - 3:00 pmSFO-ICN
12h 25mnonstop
United Airlines Logo
11:30 am - 6:10 amICN-SFO
10h 40mnonstop
$622United Airlines
Find Deal
Thu, Sep 25 - Mon, Sep 29
Air Canada Logo
6:30 am - 5:10 pmLAX-ICN
17h 40m1 stop
Air Canada Logo
6:55 pm - 9:08 pmICN-LAX
19h 13m1 stop
$666Air Canada
Find Deal
Mon, Nov 3 - Wed, Nov 5
Air Canada Logo
6:10 pm - 5:10 pmLAX-ICN
30h 00m1 stop
Air Canada Logo
6:55 pm - 9:08 pmICN-LAX
19h 13m1 stop
$667Air Canada
Find Deal
Mon, Nov 3 - Mon, Nov 17
Korean Air Logo
7:20 am - 5:20 pmSEA-ICN
18h 00m1 stop
Korean Air Logo
7:20 pm - 1:30 pmICN-SEA
10h 10mnonstop
$791Korean Air
Find Deal
Wed, Oct 1 - Sun, Oct 12
Korean Air Logo
12:50 pm - 4:40 pmSEA-ICN
11h 50mnonstop
Korean Air Logo
7:20 pm - 1:30 pmICN-SEA
10h 10mnonstop
$793Korean Air
Find Deal
Sat, Sep 20 - Sat, Oct 18
Asiana Airlines Logo
2:30 pm - 5:55 pmSEA-ICN
11h 25mnonstop
Asiana Airlines Logo
6:20 pm - 12:30 pmICN-SEA
10h 10mnonstop
$803Asiana Airlines
Find Deal
Fri, Aug 29 - Sun, Sep 7
Asiana Airlines Logo
2:30 pm - 5:55 pmSEA-ICN
11h 25mnonstop
Asiana Airlines Logo
6:20 pm - 12:30 pmICN-SEA
10h 10mnonstop
$813Asiana Airlines
Find Deal
Fri, Aug 29 - Sat, Oct 11

Air China flights from United States to Seoul

Our best Air China deals on United States to Seoul flight tickets
Air China
Oct 18
SFO1:00 pmSan Francisco
35h 35m
1 stop
ICN4:35 pmIncheon Intl
Oct 25
ICN10:40 amIncheon Intl
15h 50m
1 stop
SFO10:30 amSan Francisco
$652
Find similar
Air China
Nov 8
SFO11:45 amSan Francisco
35h 50m
1 stop
ICN4:35 pmIncheon Intl
Dec 2
ICN1:10 pmIncheon Intl
37h 05m
1 stop
SFO9:15 amSan Francisco
$683
Find similar
Air China
Sep 2
IAD11:00 pmWashington, D.C. Dulles Intl
28h 35m
1 stop
ICN4:35 pmIncheon Intl
Oct 14
ICN1:05 pmIncheon Intl
19h 25m
1 stop
IAD7:30 pmWashington, D.C. Dulles Intl
$729
Find similar

American Airlines flights from United States to Seoul

Our best American Airlines deals on United States to Seoul flight tickets
American Airlines
Sep 10
DFW10:25 amDallas/Fort Worth
15h 05m
ICN3:30 pmIncheon Intl
Sep 20
ICN5:25 pmIncheon Intl
12h 55m
DFW4:20 pmDallas/Fort Worth
$868
Find similar
American Airlines
Aug 6
LGA7:30 amNew York LaGuardia
19h 00m
1 stop
ICN3:30 pmIncheon Intl
Aug 24
ICN5:25 pmIncheon Intl
19h 05m
1 stop
LGA11:30 pmNew York LaGuardia
$1,386
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momondo Fare Finder

 
Customize your flight search to find flights from United States to Seoul 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, momondo users made 832,500 searches. Data last updated July 31, 2025.
Use the filters below to find and compare flights from the United States to Seoul that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

San FranciscoIncheon

SFO - ICN

SFOICN

San Francisco

Fri 8/22

3:30 pm-8:30 pm

Nonstop13h 00m

Incheon Intl

Mon 9/15

6:20 pm-1:00 pm

Nonstop10h 40m

$604

San FranciscoIncheon

SFO - ICN

SFOICN

San Francisco

Fri 8/22

3:30 pm-8:30 pm

Nonstop13h 00m

Incheon Intl

Mon 9/15

6:20 pm-1:00 pm

Nonstop10h 40m

$606

San FranciscoIncheon

SFO - ICN

SFOICN

San Francisco

Thu 9/25

11:45 pm-4:20 am

Nonstop12h 35m

Incheon Intl

Mon 9/29

4:50 pm-11:35 am

Nonstop10h 45m

$612

San FranciscoIncheon

SFO - ICN

SFOICN

San Francisco

Thu 9/25

10:35 am-3:00 pm

Nonstop12h 25m

Incheon Intl

Mon 9/29

11:30 am-6:10 am

Nonstop10h 40m

$622

Los AngelesIncheon

LAX - ICN

LAXICN

Los Angeles

Mon 11/3

6:30 am-5:10 pm

1 stop17h 40m

Incheon Intl

Wed 11/5

6:55 pm-9:08 pm

1 stop19h 13m

$666

Los AngelesIncheon

LAX - ICN

LAXICN

Los Angeles

Mon 11/3

6:10 pm-5:10 pm

1 stop30h 00m

Incheon Intl

Mon 11/17

6:55 pm-9:08 pm

1 stop19h 13m

$667

SeattleIncheon

SEA - ICN

SEAICN

Seattle/Tacoma Intl

Wed 10/1

7:20 am-5:20 pm

1 stop18h 00m

Incheon Intl

Sun 10/12

7:20 pm-1:30 pm

Nonstop10h 10m

$791

SeattleIncheon

SEA - ICN

SEAICN

Seattle/Tacoma Intl

Sat 9/20

12:50 pm-4:40 pm

Nonstop11h 50m

Incheon Intl

Sat 10/18

7:20 pm-1:30 pm

Nonstop10h 10m

$793

SeattleIncheon

SEA - ICN

SEAICN

Seattle/Tacoma Intl

Fri 8/29

2:30 pm-5:55 pm

Nonstop11h 25m

Incheon Intl

Sun 9/7

6:20 pm-12:30 pm

Nonstop10h 10m

$803

SeattleIncheon

SEA - ICN

SEAICN

Seattle/Tacoma Intl

Fri 8/29

2:30 pm-5:55 pm

Nonstop11h 25m

Incheon Intl

Sat 10/11

6:20 pm-12:30 pm

Nonstop10h 10m

$813

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Seoul from

How to get the cheapest flight ticket from United States to Seoul

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Seoul?

The month of January is another great option to travel to Seoul, with average flight prices from United States averaging around $1,104.

What is the cheapest day to depart on your flight to Seoul?

According to our data, Wednesday is the cheapest day to fly to Seoul from United States. The lowest ticket price found for a Wednesday departure recently was $1,179. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. The most expensive day to fly to Seoul is Saturday, with ticket prices averaging around $1,337.

What is the cheapest time of day to depart on your flight to Seoul?

Flying to Seoul from United States in the morning is the least expensive time of day to depart. momondo users have found prices as low as $1,159 when looking at flights departing in the morning. In the evening is when there is more demand to fly to Seoul, so prices are often more expensive at around $1,288 per ticket.

What is the cheapest United States to Seoul flight route?

Fly from San Francisco to Incheon Intl for the best United States - Seoul flight prices

How far in advance should I book a flight to Seoul?

You are more likely to see cheaper flights to Seoul from United States when booking weeks ahead of your departure date. In general, you can expect to find flights to Seoul for around $1,517 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Seoul from United States for as low as $1,342 on momondo.

What cabin class options are available on United States to Seoul flights?

There are 4 cabin classes available to choose from on United States to Seoul flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on United States to Seoul flights?

No. A direct flight is the cheapest option for a flight between United States to Seoul.

Cheap United States to Seoul flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from United States to Seoul

Best Price Found

$337

Fastest flight time

11h 20m

Direct flights

Every day

Airports in Seoul

1 airport
The best one-way flight to Seoul from United States in the past 72 hours is $337. The best round-trip flight deal from United States to Seoul found on momondo in the last 72 hours is $604.
The fastest flight from United States to Seoul takes 11h 20m
Direct flights go from United States to Seoul every day.
There is 1 airport near Seoul: Incheon Intl (ICN)
Search flight deals

  • When did momondo last update prices for flights from United States to Seoul?

    Prices for flights from United States to Seoul are refreshed on a daily basis.

  • How many operators does momondo search for flights from United States to Seoul?

  • How old do you have to be to fly from United States to Seoul?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from United States to Seoul.

  • What documentation or ID do you need to fly to Seoul?

    The travel and health documents you'll need for your trip to Seoul may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Seoul. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from United States to Seoul?

Best airlines flying from United States to Seoul

Compare and see reviews for airlines that fly from United States to Seoul with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $54Free CancellationRating
5.9
3,239 reviews
Search Frontier flights
DeltaPriceFrom $318Free CancellationRating
8.0
7,981 reviews
Search Delta flights
XiamenAirPriceFrom $363Free CancellationRating
6.6
41 reviews
Search XiamenAir flights
Hawaiian AirlinesPriceFrom $422Free CancellationRating
7.8
2,611 reviews
Search Hawaiian Airlines flights
China AirlinesPriceFrom $528Free CancellationRating
8.3
754 reviews
Search China Airlines flights
WestJetPriceFrom $549Free CancellationRating
7.2
2,978 reviews
Search WestJet flights
Air CanadaPriceFrom $577Free CancellationRating
7.1
9,851 reviews
Search Air Canada flights
Air ChinaPriceFrom $643Free CancellationRating
7.3
93 reviews
Search Air China flights
China EasternPriceFrom $644Free CancellationRating
7.2
158 reviews
Search China Eastern flights
Alaska AirlinesPriceFrom $675Free CancellationRating
8.0
10,000 reviews
Search Alaska Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from United States to Seoul?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Seoul from United States.

Can I find flights from United States to Seoul with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Seoul from United States with this policy.

How can momondo help me find flights from United States to Seoul?

momondo helps you find the best flight between United States and Seoul by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from United States to Seoul right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Seoul, momondo offers a useful price alert feature which will track prices for flights to Seoul from United States and alert you when they change.

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Find better results for your trip to South Korea

Fly into one of these airports located in Seoul

Airports listed have a maximum distance of 30.3 mi from Seoul
Seoul Gimpo Intl Airport
Incheon Intl Airport