$549 Find Cheap Flights from San Jose to South Korea

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from San Jose to South Korea departing on 1/24. 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 San Jose to South Korea

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Jeju City
Jeju City2 stops$1,876
Busan
Busan2 stops$1,188
Jeju City
Jeju City2 stops$1,876
Busan
Busan2 stops$1,188

Book Cheap San Jose to South Korea Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from San Jose to South Korea 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 San Jose to South Korea

Sat, Mar 28 - Wed, Apr 1
Alaska Airlines Logo
3:05 pm - 6:35 pmSJC-ICN
35h 30m1 stop
Alaska Airlines Logo
8:35 pm - 7:05 pmICN-SJC
14h 30m1 stop
$616Alaska Airlines
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Thu, Nov 13 - Sat, Nov 22
Alaska Airlines Logo
8:10 am - 6:35 pmSJC-ICN
17h 25m1 stop
Alaska Airlines Logo
8:35 pm - 11:58 pmICN-SJC
20h 23m1 stop
$654Alaska Airlines
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Sun, Jan 25 - Fri, Jan 30
Alaska Airlines Logo
9:05 am - 6:35 pmSJC-ICN
16h 30m1 stop
Alaska Airlines Logo
8:35 pm - 8:04 pmICN-SJC
16h 29m1 stop
$656Alaska Airlines
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Wed, Nov 12 - Mon, Nov 24
Hawaiian Airlines Logo
2:39 pm - 6:35 pmSJC-ICN
34h 56m1 stop
Hawaiian Airlines Logo
8:35 pm - 11:58 pmICN-SJC
20h 23m1 stop
$675Hawaiian Airlines
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Sun, Dec 7 - Thu, Dec 18
Korean Air Logo
6:18 am - 3:55 pmSJC-ICN
16h 37m1 stop
Korean Air Logo
4:10 pm - 1:52 pmICN-SJC
14h 42m1 stop
$766Korean Air
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Wed, Nov 12 - Mon, Nov 24
United Airlines Logo
4:02 pm - 4:15 pmSJC-ICN
31h 13m2 stops
United Airlines Logo
6:00 pm - 10:05 amICN-SJC
33h 05m2 stops
$780United Airlines
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Wed, Dec 3 - Thu, Dec 18
Korean Air Logo
6:18 am - 3:55 pmSJC-ICN
16h 37m1 stop
Korean Air Logo
4:10 pm - 1:52 pmICN-SJC
14h 42m1 stop
$834Korean Air
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Wed, Dec 3 - Thu, Dec 18
United Airlines Logo
12:40 pm - 5:40 amSJC-ICN
24h 00m2 stops
United Airlines Logo
12:45 pm - 9:16 pmICN-SJC
25h 31m2 stops
$844United Airlines
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Mon, Nov 24 - Thu, Nov 27
Delta Logo
5:45 am - 4:20 pmSJC-ICN
17h 35m1 stop
Delta Logo
8:05 pm - 6:54 pmICN-SJC
15h 49m1 stop
$876Delta
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Sun, Nov 23 - Fri, Nov 28
Delta Logo
2:15 pm - 3:55 pmSJC-ICN
32h 40m1 stop
Delta Logo
2:30 pm - 6:19 pmICN-SJC
20h 49m1 stop
$881Delta
Find Deal
Booking Insights

KAYAK's insights & trends for San Jose to South Korea flights

Get data-powered insights and trends into flights from San Jose to South Korea to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from San Jose to South Korea?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from San Jose to South Korea, 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 San Jose to South Korea is February, when tickets cost $809 (return) on average. On the other hand, the most expensive months are December and July, when the average cost of round-trip tickets is $1,592 and $1,575 respectively.

What’s the cheapest day of the week to fly from San Jose to South Korea?

The average price of all round-trip flights from San Jose to South Korea clicked on KAYAK for each day over the last 12 months.

If you are looking for a flight deal from San Jose to South Korea, look for departures on Thursdays and avoid leaving on a Friday, as it's usually the priciest day. When flying back from South Korea, Monday is the cheapest day to fly and Friday is the most expensive.

Good to know

Low seasonJanuary
Cheapest flight$549
Best time to beat the crowds but there is an average 2% increase in price.
Most popular time to fly and prices are also 20% lower on average.
Flight from San Jose to Busan

FAQs - booking South Korea flights

  • How does KAYAK find such low prices on flights from San Jose to South Korea?

    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 San Jose to South Korea.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from San Jose to South Korea?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from San Jose to South Korea 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 San Jose to South Korea?

    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 San Jose to South Korea 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 San Jose to South Korea?

    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 San Jose to South Korea 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 South Korea?

    The cheapest time of day to fly to South Korea is generally in the evening, when round-trip flights cost $1,170 on average. Morning departures are around 13% more expensive than evening flights, on average. The most expensive time of day to fly to South Korea is generally at night, which is peak travel time and where the average cost of a ticket is $1,595.

Reviews of the top airlines flying from San Jose to South Korea

 
Need help choosing which airline to fly with from San Jose to South Korea? 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 1155 reviews
8.7Crew
8.1Food
8.5Boarding
8.2Entertainment
8.3Comfort
Airline reviews

Flight crew was fantastic. The aircraft was meticulously cleaned at all times. The crew was continuously checking to see if the passengers were ok.

10.0 ExcellentAnonymous, Oct 2025IAD - ICN
Read more Korean Air reviews

Flight crew was fantastic. The aircraft was meticulously cleaned at all times. The crew was continuously checking to see if the passengers were ok.

Korean are so racist and when I ask question or directions they totally ignore me and say racist. Also they give me an rude attitude.

It was good, I liked the self-serve snacks but it was a little difficult to get the alcohol, which is understandable since I wouldn't want kids sneaking it.

Friendly flight attendants and gate agents. Very clean plane and food was good!

I normally love Korean Air, but this trip was not great. We boarded the plan and were settling into our seats. My son and I use these leg swings and we used it on the trip over to Cambodia, but on the way back the flight attendant very rudely told us we could not use it and that it was against regulations. I asked to see the regulation, but never saw it. The food on this trip was horrible as well, Even my son's kids meal was disgusting so we didn't eat anything on the flight. Thankfully we brought snacks. Entertainment - what happened to the games?

This was an amazing flight. The crew was great. The service was great. The food provided was great.

I was unable to select decent seats, and so I was stuck in the middle seat because it was selected for me

Korean air has a little bit more seating space than Asiana air.

There was a lot of partial tv shows but not enough to last the flight. The food was incredible! The crew were so helpful and patient. Lots more space than what I usually get on an international flight. Very comfortable!

Stingy on the drinks - 15 hour direct flight and could barely get attention for some water

Same as last comment. Food sucks. Quality. Not surprising most people have no clue about nourishment Clearly

The flight attendants were great, I joked with one I can’t remember her name, a blond, really sweet. I thought it was run well very professional. This was great i survived Spirit, I know for which I speak.

We were in business class. the angled seats in that class do not have a real window view & the placement of the controls are bad. But we knew that. But the food options were mediocre. The taste was fine, but the size was for a child. It’s just really feels like United is skimping on everything. Even when we were in the Polaris lounge they did not have diet sodas. They said they were out no Coke zero no Diet Coke, etc. I do not think the portion of nuts they serve on the plane could get any smaller. Really a minimal service and offer for what you’re paying for in business.

I was in first class. The outlets at my seat did not work. The plane was shabby and run down. I had prepurchsed a day subscription for internet that was not redeemable. I had to repurchase the internet for my flight and then it didn’t work anyway. Quite disappointed in what was supposed to be the launch of a great vacation.

We had to deboard 2 times due to maintenance issues. They changed the plane, and then we got deviated to LAX due to maibtenance issues on the other plane, had to sleep at LAX and los a full day.

From the first moment you interact with United Airlines, you can expect nothing less but extreme frustration. The baggage handler at the bag drop seems completely unbothered by the presence of customers waiting in line. No help was extended to load the baggage whatsoever. And if any of your bags is overweight by 0.01 pound they will make you re-distribute everything in your suitcase just to play power trip. When it was time to board no help was extended to customers to locate their seats. Moreover. It was a chaotic mess at the gate when it was unclear who should board first and everyone just bunched up, trying to get on the plane. I am sure the crew was doing their best to perform their jobs while being paid their wages however it shouldn’t be that hard to smile once or twice when you’re in the business if serving customers. It is a shame for the United States of America to have a flagship carrier of such low caliber. Our flight was also delayed by about an hour and a half due to further delays prior to our inbound flight. Being someone who has travelled for both business and leisure in Asia, Europe, and South America I have never experienced such poor quality of service.

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.

The pilots were late and it made us 1 hour late. The meat was tough and bok choy was also tough.

Stuck on tarmac for two hours plus a 5.5 hour flight. Rude flight attendant. And no meals, not even for purchase!

I learned that seating towards the end of plane that a line forms for the restroom and people use your chair as a hand railing, bumping your seat consistently. I was seated in the aisle. I think that next time if I am towards the back row I would want to sit in the middle or window seat.

Everything you need to know for your flight from San Jose to South Korea

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