$320 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 5/30. 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, 0 bags

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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 Angeles1 stop$682
San Francisco
San Francisco1 stop$717
Boston
Boston1 stop$942
Atlanta
Atlanta1 stop$1,150
Dallas
Dallas2 stops$1,120
Tampa
Tampa1 stop$1,063
San Diego
San Diego1 stop$898
Honolulu
Honolulunonstop$571
Philadelphia
Philadelphia1 stop$1,060
Los Angeles
Los Angeles1 stop$682
San Francisco
San Francisco1 stop$717
Boston
Boston1 stop$942
Atlanta
Atlanta1 stop$1,150
Dallas
Dallas2 stops$1,120
Tampa
Tampa1 stop$1,063
San Diego
San Diego1 stop$898
Honolulu
Honolulunonstop$571
Philadelphia
Philadelphia1 stop$1,060

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

Mon, Jun 15 - Wed, Jun 24
AIR PREMIA Logo
10:30 pm - 12:20 pm
ICN
-
HNL
8h 50mnonstop
AIR PREMIA Logo
2:30 pm - 7:05 pm
HNL
-
ICN
9h 35mnonstop
$571AIR PREMIA
Wed, Jun 3 - Fri, Jun 12
AIR PREMIA Logo
10:30 pm - 12:20 pm
ICN
-
HNL
8h 50mnonstop
AIR PREMIA Logo
2:30 pm - 7:05 pm
HNL
-
ICN
9h 35mnonstop
$575AIR PREMIA
Fri, Jun 5 - Sun, Jun 14
Asiana Airlines Logo
8:25 pm - 10:10 am
ICN
-
HNL
8h 45mnonstop
Asiana Airlines Logo
12:10 pm - 5:30 pm
HNL
-
ICN
10h 20mnonstop
$622Asiana Airlines
Tue, Oct 13 - Thu, Apr 1
Air Canada Logo
5:45 pm - 4:00 pm
ICN
-
LAX
14h 15m
1 stop
Air Canada Logo
7:20 am - 4:05 pm
LAX
-
ICN
16h 45m
1 stop
$682Air Canada
Sat, Oct 17 - Sun, Apr 11
Air Canada Logo
5:45 pm - 9:35 pm
ICN
-
LAX
19h 50m
1 stop
Air Canada Logo
3:20 pm - 4:05 pm
LAX
-
ICN
32h 45m
1 stop
$686Air Canada
Thu, Oct 8 - Wed, Oct 14
Asiana Airlines Logo
8:30 am - 10:00 am
ICN
-
JFK
14h 30mnonstop
Asiana Airlines Logo
1:30 am - 6:05 am
JFK
-
ICN
15h 35mnonstop
$770Asiana Airlines
Fri, Jun 12 - Sat, Aug 29
United Airlines Logo
11:30 am - 6:30 am
ICN
-
SFO
11h 00mnonstop
United Airlines Logo
11:55 pm - 4:20 am
SFO
-
ICN
12h 25mnonstop
$790United Airlines
Wed, May 27 - Wed, Aug 26
United Airlines Logo
11:30 am - 6:30 am
ICN
-
SFO
11h 00mnonstop
United Airlines Logo
11:55 pm - 4:20 am
SFO
-
ICN
12h 25mnonstop
$794United Airlines
Thu, Oct 8 - Tue, Oct 13
Korean Air Logo
7:00 pm - 1:14 pm
ICN
-
SEA
10h 14mnonstop
Korean Air Logo
12:35 pm - 4:50 pm
SEA
-
ICN
12h 15mnonstop
$860Korean Air
Thu, Oct 8 - Tue, Oct 13
Korean Air Logo
7:00 pm - 1:14 pm
ICN
-
SEA
10h 14mnonstop
Korean Air Logo
12:35 pm - 4:50 pm
SEA
-
ICN
12h 15mnonstop
$863Korean Air
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 $430 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 $430.

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

The average price for all round-trip flights from Seoul to the United States depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.

The cheapest time of day to fly to the United States is generally in the evening, when round-trip flights cost $535 on average. Morning departures are around 55% 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 $830.

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 $1,218 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 $504 (return) on average. On the other hand, the most expensive months are July and October, when the average cost of round-trip tickets is $778 and $744 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 Wednesday and avoid Saturdays if you are looking for the best rates. For your return to Seoul, you’ll find the best rates on Sundays 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 34% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 3 weeks before departure.

Good to know

Low seasonMarch
Cheapest flight$320
Best time to beat the crowds but there is an average 5% increase in price.
Most popular time to fly with an average 2% 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 Animawings
ICN
-
DFW
Apr 2026
Wear compression socks, walk around every 1-2.5hrs to allow blood flow.
Verified travelerFlew with AIR PREMIA
ICN
-
LAX
Jan 2026
Get a mobile boarding pass ahead of time. Also, register for the Smartpass (requires an app) for a shorter line at the security.
Verified travelerFlew with Hawaiian Airlines
ICN
-
HNL
Mar 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 Airlines
ICN
-
SEA
Mar 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 Air
ICN
-
ATL
Dec 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 Air
ICN
-
LAX
Jan 2025
Wear comfortable clothes. Bring whatever you need to be comfortable
Verified travelerFlew with Korean Air
ICN
-
IAD
Nov 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 Air
ICN
-
LAX
Oct 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 Airlines
ICN
-
HNL
Sep 2024
Avoid transit from one terminal to another. Takes 90 minutes to connect. Don’t waste money on Hawaiian Business Class. Not worth it.
ArthurFlew with Delta
ICN
-
ATL
Jul 2024
Get aisle seat and stretch legs every 2 hours minimum. Bring your own favorite snack .
HOJINFlew with AIR PREMIA
ICN
-
EWR
Aug 2024
Arrive during business hours so that the airport have enough staff to handle the arrival.
PlainFlew with Hawaiian Airlines
ICN
-
HNL
May 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.

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 1216 reviews
8.3Comfort
8.5Boarding
8.2Entertainment
8.7Crew
8.1Food
Airline reviews

Very long flight time. Still better than a connection flight. Staff is very good at service. Vegetarian food is not very good.

8.0 ExcellentGary, Apr 2026
ICN - YYZ
Read more Korean Air reviews

Very long flight time. Still better than a connection flight. Staff is very good at service. Vegetarian food is not very good.

The business class is excellent. I loved the food, and the crew was very attentive and professional. From boarding to arrival, everything felt smooth and well-organised.

Lousy entertainment system. Crews are excellent. Meal is just mediocre.

Aircraft is pretty old. Seat is not comfortable. Meal quality is disappointing. Entertainment system is not impressive at all.

Great service and comfort level. You can have more of vegetarian food options.

It’s great, long flight and arrive safe at destination

Everything was excellent as I expected. They also had a very caring crew. I had a headache and asked a Tylenol. The crew members kept checking with me how I was doing.

I can't believe they put my wife and I in the two middle seats! It is a very long flight and we had single flyers on either side of us blocking the way to the bathroom! There's no reason to not give one of us the isle seat so we could have managed bathroom needs and snacks with convenience. So I think very poorly of Korean air to put us both in the middle, I've never had that happen before and will probably avoid this airline in the future because of this. We tried to have them change it but they didn't so you pretty much lost a customer because of it.

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!

Don't splurge for the Premium Wide Economy. They compare it to business class. This is not business class, and the seats are very uncomfortable.

For the second meal, the different food choices ran out both times so we were only offered one.

Seating was good in the economy with plenty of leg room. The seat cushions were a little firm though, especially for such a long flight. All meals were Korean as would be expected. The food was typical airline quality. Edible, but not something you would recommend to friends. Inflight entertainment was also all Korean but Korean tv and movies are made well and you can find something to watch. Just be prepared to read subtitles. Overall it was a good flight, especially for the price.

The crews were friendly, professional and courteous. Checking in was easy and smooth. The best part is, as we all know, the price.

The person in front of me was rude. He may came from some communism countries and don’t care of other people. No common manner and sense between human being.

Very nice staff, airplanes, and an excellent value in premium economy.

Food quality is poor. Flight attendants are very friendly and professional.

I flew on Zip Air on the way to Asia so I can compare. The two airlines are night and day. Air Premia was so amazing compared to Zip Air. I have flown Korean Air in the past and I honestly don’t know the difference between Air Premia and the “non-budget” airlines. My Air Premia flight provided me two bags whereas I had to pay for Zip Air. On my under 11 hour flight, we were provided two full meals! The flight attendants were so kind and polite.

For the price, the overall experience was what I expected. The prices were fair and competitive, the staff friendly and more responsive than other airlines, and seating spacious. The downside was food portion size, but I'll gladly pay a few dollars more for the hot noodles or other supplemental snacks, given the more affordable ticket prices. I don't mind the absence of Hollywood movie programming if that leads to inflated ticket prices. Wi-Fi worked well. In addition to spacious seating for the Wide Premiium, I'd suggest foot rests to complement the calf rests. There're problems with booking Air Premia tickets at the home website. The underlying app engine won't process non-Korean credit cards, which is a major oversight, probably hurting the company's bottom line. I can go to Kayak or a third-party website to book Air Premia tickets, but it's an awkward work-around when other airlines don't have to resort to this tactic.

As it's a budget airline it's pretty basic. But the quality of crew and plane is excellent.

Smooth sailing trip, pilots are good. Less amount of food offered but the quality is okey.

Humm, I should have known that the seat I peaked on my flight from Inchon to Manila was designed for a toddler or very small person.

The staff hold my luggage to steel and exchange my stub, i was very disappointed.

Kayak uses scammer sites to steal money from their victims.

Customer service and attention to details. The food was good.

Felt like the oldest plane in Asiana Fleet. Screen was 5-6in only and no charging at all. Movie selection wasn't great.

When one asks for water because they are dehydrated, bring more then a sip or two in a small cup. Bring them a whole bottle.

Food could be better it was okay. Entertainment seems dated it was something but in this day and age could be a lot better.

I am thankful that I was able to fly using Asiana

It was my first time flying Asiana but i was very pleased with how professional and understanding the flight crew is with little kids. One flight attendant held my 3 year old daughter’s hand guiding her to the exit after landing while i had my hands full with luggage and my infant. She was very helpful.

Much better than Latam, the worse airline company ever. I hope I don't have the need to fly Latam ever in my life again.

Everything could and should be better. We are paying for, it's not a favor, it's a service and should involve quality, responsibility and respect.

Seats were comfortable, 8 hours. One flight attendant was not appropriate in his verbal response: "Please, DON'T touch me.", after being tapped near his elbow after being made unaware he skipped serving me & had passed further down the aisle.

Boarding in Amsterdam is always chaotic. More complicated than needs to be ( boarding pass checked twice, once for general security, then by the airline). The bathrooms on this flight are dirty, and smelly. The food was mediocre at best The crew was decent

Seats in Delta Main are unbelievably close to the seat in front of. Hard to get a backpack under the seat.

Round trip flight to Canada and back to the US was smooth and efficient.

The agent at check in and at the gate were less than thrilled to be at work. I'm not a fan of Kayak's placement on the plane. I got put in the middle seat and none of my preferences were used.

Spanish speaker flight attendants were incredibly rude. A male flight attendant named Allen, grabbed my bag out of the overhead bin and moved it without my permission. When I asked what he was doing, he informed me that the overhead bins were public space? It would be easy to ignore this comment, as you don’t know the whole story, but the flight attendants were militant and rude. Delta, you can do better!

In ATL they have two sets of departure screens. Follow what is on your airline's departure board - the ATL Airport Authority departure board had completely incorrect details about the gate assignment for my flight, which would have made me miss boarding.

Flight was delayed it was hot while sitting on the plane, one engine was working on the plane until they had to do some jimmy rigging down the runway in order for the other engine to charge up. It was ridiculous

O’hsre taxi and deboarding took 40 minutes. Needed 20 minutes extra time between connecting flights to avoid running through terminal.

Seats very comfortable; service efficient and pleasant; flight was on-time; boarding organized.

Seats were not super comfortable and food was not good at all. If I had a chance I would definitely fly a different airline. Of course they are better than any budget airline, but not by much.

Overall a good experience, but no wifi available for free or for purchase and we got wet from condensation or other water source during descent.

Very friendly and helpful staff on board and United was excellent when I missed my onward flight due to the delay in London. Very well organised meant much less stress

Flew steerage class. Short on leg room unless you pay more. No window unless you pay more. Etc. United is trying to squeeze every cent from you. It doesn’t make for any loyalty.

Booked through Kayak Business, had a seat in middle and towards back due to booking rate, not comfortable.

Was great in general, try to respect time and excuses when slight changes have been made, appreciated!

A long delay. Don't travel late in the day.

Super friendly with lots of drink options an entertainment. Friendly crew.

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.