$298 Find Cheap Flights from Seoul to the United States

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Seoul to the United States departing on 9/3. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

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Cheap Flights from Seoul to the United States

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Los Angeles
Los Angelesnonstop$513
San Francisco
San Franciscononstop$570
Boston
Boston1 stop$556
Atlanta
Atlanta1 stop$551
Dallas
Dallas1 stop$589
Tampa
Tampa1 stop$539
Honolulu
Honolulunonstop$455
San Diego
San Diego2 stops$583
Philadelphia
Philadelphia1 stop$502
Los Angeles
Los Angelesnonstop$513
San Francisco
San Franciscononstop$570
Boston
Boston1 stop$556
Atlanta
Atlanta1 stop$551
Dallas
Dallas1 stop$589
Tampa
Tampa1 stop$539
Honolulu
Honolulunonstop$455
San Diego
San Diego2 stops$583
Philadelphia
Philadelphia1 stop$502

Book Cheap Seoul to the United States Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Seoul to the United States that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

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

Fri, Sep 19 - Mon, Sep 22
AIR PREMIA Logo
10:30 pm - 12:10 pmICN-HNL
8h 40mnonstop
AIR PREMIA Logo
2:20 pm - 7:10 pmHNL-ICN
9h 50mnonstop
$455AIR PREMIA
Find Deal
Mon, Sep 1 - Wed, Sep 17
AIR PREMIA Logo
10:30 pm - 12:10 pmICN-HNL
8h 40mnonstop
AIR PREMIA Logo
2:20 pm - 7:10 pmHNL-ICN
9h 50mnonstop
$456AIR PREMIA
Find Deal
Wed, Sep 3 - Mon, Sep 8
AIR PREMIA Logo
10:30 pm - 12:10 pmICN-HNL
8h 40mnonstop
AIR PREMIA Logo
2:20 pm - 7:10 pmHNL-ICN
9h 50mnonstop
$457AIR PREMIA
Find Deal
Sat, Nov 1 - Sun, Nov 9
United Airlines Logo
5:00 pm - 10:40 amICN-LAX
33h 40m2 stops
United Airlines Logo
4:10 pm - 5:40 amLAX-ICN
20h 30m1 stop
$523United Airlines
Find Deal
Sat, Nov 1 - Sat, Nov 8
United Airlines Logo
5:00 pm - 10:40 amICN-LAX
33h 40m2 stops
United Airlines Logo
4:10 pm - 4:15 pmLAX-ICN
31h 05m1 stop
$524United Airlines
Find Deal
Sun, Sep 21 - Thu, Sep 25
Asiana Airlines Logo
8:55 pm - 3:30 pmICN-SFO
10h 35mnonstop
Asiana Airlines Logo
11:30 pm - 4:30 amSFO-ICN
13h 00mnonstop
$591Asiana Airlines
Find Deal
Tue, Sep 9 - Sat, Sep 20
Asiana Airlines Logo
8:55 pm - 3:30 pmICN-SFO
10h 35mnonstop
Asiana Airlines Logo
11:30 pm - 4:30 amSFO-ICN
13h 00mnonstop
$599Asiana Airlines
Find Deal
Wed, Sep 24 - Sat, Sep 27
Korean Air Logo
4:00 pm - 10:40 amICN-SFO
10h 40mnonstop
Korean Air Logo
12:50 pm - 5:20 pmSFO-ICN
12h 30mnonstop
$623Korean Air
Find Deal
Thu, Oct 16 - Thu, Oct 23
Delta Logo
4:00 pm - 10:40 amICN-SFO
10h 40mnonstop
Delta Logo
6:00 am - 4:40 pmSFO-ICN
18h 40m1 stop
$630Delta
Find Deal
Tue, Dec 23 - Sat, Jan 10
Delta Logo
4:00 pm - 9:30 amICN-SFO
10h 30mnonstop
Delta Logo
5:45 am - 4:20 pmSFO-ICN
17h 35m1 stop
$631Delta
Find Deal
Booking Insights

KAYAK's insights & trends for Seoul to the United States flights

Get data-powered insights and trends into flights from Seoul to the United States to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest Seoul to the United States flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest ticket to the United States from Seoul found in the last 72 hours was to Los Angeles, at $366 round-trip. The most popular route is from Incheon Intl Airport (ICN) to Los Angeles (LAX), and the cheapest round-trip airline ticket found on this route in the last 72 hours was $366.

Can I save money by flying with a layover from Seoul to the United States?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

Yes, flying with a layover may cost you more time, but you can also save money on the route, with a 2 stops layover the cheapest option at $1,436 on average.

What is the cheapest month to fly from Seoul to the United States?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Seoul to the United States, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Seoul to the United States is November, when tickets cost $663 (return) on average. On the other hand, the most expensive months are August and October, when the average cost of round-trip tickets is $1,006 and $965 respectively.

What’s the cheapest day of the week to fly from Seoul to United States?

The average price of all round-trip flights from Seoul to the United States clicked on KAYAK for each day over the last 12 months.

When flying from Seoul to United States, you should consider leaving on a Sunday and avoid Fridays if you are looking for the best rates. For your return to Seoul, you’ll find the best rates on Wednesdays and the most expensive ones on Saturdays.

How far in advance should I book a flight from Seoul to the United States?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Seoul to the United States, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Seoul to the United States, you should book around 2 weeks before departure, which saves you about 11% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 14 weeks before departure.

Good to know

Low seasonMarch
Cheapest flight$298
Best time to beat the crowds with an average 18% drop in price.
Most popular time to fly with an average 5% increase in price.
Flight from Seoul Incheon Airport to Honolulu

Flights from Seoul to the United States: the best tips from KAYAK users

Insights shared by verified travelers who flew the route from Seoul to the United States 
Verified travelerFlew with Hawaiian AirlinesICN-HNLMar 2025
The connection to the next flight can be difficult. We got lost in the Incheon Airport trying to transfer to Terminal 1, and almost missed our flight since it was very difficult to find instructions on how to get there. I suggest finding instructions how to transfer to the connecting flight in Incheon Airport.
Verified travelerFlew with Asiana AirlinesICN-SEAMar 2025
Be careful to allow enough time when going thru Customs & Immigration. Despite having Global entry privileges, we missed our connecting domestic flight because luggages arrived late before we got thru Customs. Then, we have to contend with long security lines in SEA.
Verified travelerFlew with Korean AirICN-ATLDec 2024
Fly Korean Air if you can. ICN is a great airport and you won't have any issues getting through in a reasonable time, but be aware that the gates for US-bound flights are fairly far away.
highoutputFlew with Korean AirICN-LAXJan 2025
Wear comfortable clothes. Bring whatever you need to be comfortable
Verified travelerFlew with Korean AirICN-IADNov 2024
Incheon has always impressed me by its cleanliness so I invariably choose Korean Air over and above others. I appreciate the 2 free checked-in luggage policy. I find the weight limit for carry-ons plus personal item a bit restrictive. I bring a laptop with an AC adapter and that alone brings my carry-on weight close to the limit. Next time, I shall try not to bring other battery chargers (the ones that are not allowed to be checked in).
Verified travelerFlew with Korean AirICN-LAXOct 2024
If you are traveling with Korea Air and you think you want to have better seats, book it from the beginning. The run out of availability quickly
Verified travelerFlew with Hawaiian AirlinesICN-HNLSep 2024
Avoid transit from one terminal to another. Takes 90 minutes to connect. Don’t waste money on Hawaiian Business Class. Not worth it.
HOJINFlew with AIR PREMIAICN-EWRAug 2024
Arrive during business hours so that the airport have enough staff to handle the arrival.
PlainFlew with Hawaiian AirlinesICN-HNLMay 2024
Notify Airline of any precondition or current heath issues8, even if passage is alegic. Korean Air has an efficient boarding process. Less confusion. During my most recent flight a stewardess threw a beef tray mealin front me without a word.

FAQs - booking United States flights

  • How does KAYAK find such low prices on flights from Seoul to the United States?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Seoul to the United States.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Seoul to the United States?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Seoul to the United States is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Seoul to the United States?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Seoul to the United States with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Seoul to the United States?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Seoul to the United States up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to the United States?

    The cheapest time of day to fly to the United States is generally in the evening, when round-trip flights cost $731 on average. Morning departures are around 51% more expensive than evening flights, on average. The most expensive time of day to fly to the United States is generally in the morning, which is peak travel time and where the average cost of a ticket is $1,104.

Reviews of the top 5 airlines serving from Seoul to the United States

 
Need help choosing which airline to fly with from Seoul to the United States? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.4
Korean AirOverall score based on 1131 reviews
8.5Boarding
8.7Crew
8.2Entertainment
8.1Food
8.3Comfort
Airline reviews

There could have been better spacing of the passengers, it was crowded in some parts of the plane then other while rows were empty

8.0 ExcellentMatt, Aug 2025ICN - MNL
Read more Korean Air reviews

There could have been better spacing of the passengers, it was crowded in some parts of the plane then other while rows were empty

Plane took off on time and I had the whole row to myself!

One of the flight attendants stepped on my foot. I was on the aisle seat. A lady inside needed to get out. So Instood. Just then, a flight attentendant came wuicklybtheoughbthe aisle and stepprd on my sock covered toes. I let out a small sound. She stopped momentarily, but didn’t ask how I was just took off of the aisle. Never came back to see how I was. Fortunately, I was not really hurt other than a slight soreness in my toes. But I found that to be very negligent.

This flight was a superior flight in all regards. Extremely pleasant experience.

Korean Air is unlike any other major airline I have flown with. The grace and respect that the staff has from check in to de-boarding is unmatched. The flight attendants this time were especially wonderful to my five little children. They helped us rearrange to more suitable seating, brought our children’s meals, and patiently waited for them in the aisles when they had to use the bathroom. We felt so welcome and comfortable. I really appreciate the meal voucher when our flight was delayed. I am grateful to have had such an stress-free experience.

It's good overall. Flight was packed. Inflight entertainment choices were lacking.

They were very accommodating of a dietary issue. Nice movie & tv selections. Non-stop helped get through a very long (15 hr) flight

They did an excellent job helping me with a wheelchair. I couldn’t have asked for any better help.

Great except for the delay in Korea. Korean Air did a great job setting up a hotel for the night. I also needed assistance with a wheelchair and they were outstanding.

The flight was on time and very quick, as expected, but the leg room isn't great in coach seats.

First time flying with them and was pleasantly surprised. I had a premium economy seat which is very similar to some other airlines regional business class product. Seat was large, pillow was provided, huge amount of leg room, entertainment was available (only Korean shows), and lunch meal was served between Narita and Seoul. Really enjoyable and affordable

Maybe the reimbursement voucher should have been larger than a 10k won. That voucher is only for refreshments. The flight was delayed or pushed to more than 5 hours. It should be more than just 10k won and it was already past midnight. Some people or passengers like who was already there 5 hours prior to the original flight departure. 4pm** That was the only unfortunate thing about it . Other than that it was good .

5 hour delay, therefore, middle of the night arrival doesn’t help.

The staff were very friendly, and the flight was comfortable. That said, there was no option to specify dietary restrictions before the flight, so you may need to bring your own food. Also, there was no wifi available for the flight, though there is an in-flight entertainment console with many Korean-language shows and movies.

The legroom was great for a 5’11” person. The 11 hour direct flight had two meal services included in the ticket price which was less than other airline’s cost without food service (Canada air)from sfo to incheon. The airline is focused towards Korean nationals with the onboard entertainment selection of Korean movies but English subtitles were available. Overall premia air is a great option to fly from the US to Korea.

Most of them are OK! But, meals service was not enough. I felt hungry after eating the meal for the first time. I had to buy some other food. So I had to buy a sandwich and drinks for the return flight. And I am not sure it's only my feeling or not, I felt my butt is getting forward. I will use Korean Air or Asiana Airline for next time to visit Korea.

Plane and service were great. The entertainment is only for Koreans. Wish there were vegetarian options for food. All in all pleasantly surprised. Economy premium was quite good.

This form doesn’t work. Can’t type in, had to copy-paste. The crew constantly telling everyone about minor things is unnecessary. Did you put the belt on, push your bag more under the seat… The seat space was good for tall people, the food was decent for airplane.

Roomy seats for the given price! I couldn’t ask more!

Great airline, but there was no English entertainment (movies or shows)

It was great, but my bag was not loaded onto the connecting flight. I'm currently getting it resolved. If this isn't a problem, everything else was excellent.

Very clean ,flight attendants very professional,nice , Boarding was very easy

The aircraft was massive (A-380) and became crowded with 400+ passengers on board.

My luggage didn’t arrive with my flight. Flight was delayed by nearly 2 hours while we sat on the plane and I almost missed my connecting flight and subsequently missed the last train from the airport so it took me another 2 hours to get to my destination after arriving, Crew skipped me several times when offering beverages, and I couldn’t get their attention at times because they wouldn’t even make eye contact with me. They didn’t give me a form for disembarking so I had to go to the back of the line after waiting an eternity for immigration. Paid for on flight wi- fi that didn’t work for most of the flight.

Love flying Asiana. Been using it for over a decade now.

Coming back to America was a peaceful flight everyone and everything was perfect

I had a bad experience coming from America to Thailand. On my connecting flight my check in suitcase was not put on the departing aircraft, I received my suitcase 24 hours after arriving in Bangkok and when I open my luggage my hand swelled up. The next morning when I put on an outfit from my suitcase my face swelled up and became numb. My entire vacation was ruined it seems that some kind of chemical was sprayed into suitcase and ruined my clothes and got me sick. The staff at my hotel called the airline and spoke to someone and they told me to file a complaint and gave my a website to do so. I did not file a complaint I felt like it would have fell on death ears. I had to throw away my brand new vacation clothes and suitcase and I had the worst vacation ever due to this happening to me.

The staff was courteous and the flight was very smooth. It was so nice to see the captain greeting the passengers at the end of the flights.

Flight was too cold. I wore a regular cotton tee and it wasn’t enough. It was a night time flight so I would have thought a blanket would be provided to passengers. A 4 hour flight and no options for a meal? I flew Asiana the next day from Seoul to Manilla. Same duration, 4 hours. They give everyone a pillow and blanket and serve a meal. Why is United so cheap and holding back meals and amenities? Also, they promote too much gay stuff and DEI in their advertisements. Please be mindful of other beliefs and don’t shove your gay ideology down my throat.

Staff always with a smile and very helpful with my mom who has mobility issues.

Three seats in first class were broken and while they were able to still acommodate us it was looking very touch and go and they had others they could not acommodate

Mechanic delay in addition to a 2 hour change in takeoff time was frustrating.

Delayed due to thunderstorms and no in-flight service due to rough weather — both of which are out of Delta’s control. Flight was good overall.

The flight attendants in SLC were rude. I arrived 40 minutes early to gate. Ticket said I needed check in for seat assignments and tried check in and attendants said they weren’t doing it. And proceeded to never call me to give me a ticket so when time to board I received the very last seat. Please relay to employees to do their job better..,

On this flight I felt the food offering was not as complete as on previous flights. The tomato salad was a bit off and there was nothing additional such a bread or butter. The breakfast was only one option, so you either ate what they had or ate nothing. The crew was efficient, but most seemed frustrated throughout the flight. The flight arrived early and was obstacle-free, so I’m overall quite happy, but the shine in the rest of the experience just wasn’t there.

Our seats were comfortable with adequate room to stretch out and recline. The food was tasty and served it just the right intervals. Our flight attendant was extra attentive and friendly. Flight arrived early. And the most turbulence. Overall that’s good and experience for an 11 hour flight as can be hoped for

The seats got pretty uncomfortable pretty fast. The armrests are bigger than on other planes, so I had less room in the actual seat. My butt hurt by the end of the flight. :/ comfort was the primary issue. The crew were fantastic!

I believe that a four-hour trip should have a meal. Delta had none.

Great flight with Delta! Boarding was quick and easy, the amenities were solid, and the plane was in great shape. The flight attendants had a fun, lively energy while staying professional. All in all, a smooth trip — even managed to catch up on some rest. Thanks, Delta!

I was uncomfortably cold on the plane. Other than that it was uneventful and therefore as enjoyable as a plane ride can be.

I understand stuff happens, but plane failures are likely due to lack of maintenance. Additionally, air conditioning wasn't working, no snack/drink service, no WiFi. Fortunately, the crew was communicative and light-hearted. United grabbed another plane and we were able to get to our destination.

There was no food available for this red eye... one little waffle cookie for a 6+ hour flight... thank God I was able to sleep some

It is clear that someone knew, and competent, is in charge of food at United Airlines at least for the international flights. I was flying in coach, but the choices of the dinner were excellent. Tasty, and appropriate size. I had the beef, which was a little bit like a shepherds pie, and it was good. Nothing comparable has been served on a United flight in years. It will not be confused with three star food, but it is very good for airline food. Even better was the breakfast choice between a cinnamon roll and a breakfast sandwich. I chose the breakfast sandwich which was absolutely delicious and which I would happily order again at my local Starbucks or Panera. It is clear that someone knew indifferent is in charge of the food and it’s about time.

The flight was comfortable with the exit row and great service

Had to cancel first flight because Airporter Bus took over 3 hrs to get to airport which resulted in an extra $378 dollar fare . Is there anyway I can be reimbursed for initial fare since it was not my fault? Sent from my iPhone EJ Ledet

For both flights I requested a gluten free meal, they didn’t have one nor were there other options.

Plane was crowded and even when we hit altitude, the plane was hot, not enough air flow.

Flight attendant in first class gave poor service (like he didn't want to be there) and food was awful. We sat waiting for gate upon arrival over 45 mins.

The experience was great, the crew was very polite and hospitable. I will definitely make if my go to airlines.

Inoperable monitor left no entert for 9 hours. Crew was not helpful Food was awful.

Everything you need to know for your flight from Seoul to the United States

Cabin class types available on flights to the United States

Cabin classes available on flights to the United States. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.

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