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$344+ Cheap flights from Fremont, CA to Seoul (SEL)

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 11/28. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — SEL
Nov 28 — Dec 51
Fri 11/28
Fri 12/5
1 adult, Economy
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Cheapflights Tip: The best prices from Fremont to Seoul are usually found in February or August, booked 90 days in advance, depart on a Monday or Wednesday and return on a Wednesday

Cheap flight deals from Fremont to Seoul

Keep the following information in mind while searching for Fremont to Seoul flight deals. Data was last updated October 29, 2025.

Most accurate provider

Justfly.com
3 stars

Most trusted provider

Justfly.com
3 stars

Round-trip from

$648
(Kiwi.com)

One-way from

$344
(SmartFares)

Popular in

December

Cheapest in

February

Average price

$751
Provider with most accurate pricing for San Francisco-Seoul (SEL) flight deals.
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Provider most trusted by Cheapflights users for San Francisco-Seoul (SEL) flights.
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From Fremont to Seoul (SEL)
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One-way flight from Fremont to Seoul (SEL)
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Highest demand for flights based on searches. 10% potential increase in price ($100 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($42 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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Find flight deals from Fremont to Seoul

Cheapest flights from Fremont to Seoul
Explore the most affordable flight options available from Fremont to Seoul. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 29, 2025.

This Kiwi.com deal was found by Cheapflights users on 10/29. 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.
Fri 12/52:30 pmSFO - ICN
Nonstop13h 00mAIR PREMIA
Mon 12/156:55 pmICN - SFO
Nonstop10h 35mAIR PREMIA
Deal found 10/29$648
This oojo deal was found by Cheapflights users on 10/28. 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.
Mon 11/32:30 pmSFO - ICN
Nonstop13h 00mAIR PREMIA
Wed 11/126:55 pmICN - SFO
Nonstop10h 35mAIR PREMIA
Deal found 10/28$649
This Vliegwinkel deal was found by Cheapflights users on 10/29. 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 Vliegwinkel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/319:00 amSFO - ICN
1 stop17h 35mHawaiian Airlines
Fri 11/148:35 pmICN - SFO
1 stop18h 06mHawaiian Airlines
Deal found 10/29$650
This CheapOair deal was found by Cheapflights users on 10/28. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/2911:30 pmSFO - ICN
1 stop27h 55mMultiple Airlines
Mon 11/36:55 pmICN - SFO
Nonstop10h 35mMultiple Airlines
Deal found 10/28$651
This Gotogate deal was found by Cheapflights users on 10/26. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/2711:30 pmSFO - ICN
1 stop27h 55mMultiple Airlines
Fri 10/316:55 pmICN - SFO
Nonstop10h 35mMultiple Airlines
Deal found 10/26$652
This SmartFares deal was found by Cheapflights users on 10/28. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/78:00 amSFO - ICN
1 stop17h 35mAlaska Airlines
Sat 11/158:35 pmICN - SFO
1 stop14h 28mAlaska Airlines
Deal found 10/28$654
This Mytrip deal was found by Cheapflights users on 10/28. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/2911:30 pmSFO - ICN
1 stop27h 55mMultiple Airlines
Wed 11/56:55 pmICN - SFO
Nonstop10h 35mMultiple Airlines
Deal found 10/28$659
This Trip.com deal was found by Cheapflights users on 10/27. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/2711:30 pmSFO - ICN
1 stop27h 55mPhilippine Airlines
Mon 11/37:30 amICN - SFO
1 stop29h 00mPhilippine Airlines
Deal found 10/27$660
This United Airlines deal was found by Cheapflights users on 10/27. 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 11/611:45 pmSFO - ICN
Nonstop12h 55mUnited Airlines
Tue 11/1812:45 pmICN - SFO
Nonstop10h 45mUnited Airlines
Deal found 10/27$661
This United Airlines deal was found by Cheapflights users on 10/29. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/510:30 amSFO - ICN
Nonstop12h 45mUnited Airlines
Wed 11/2612:45 pmICN - SFO
Nonstop10h 45mUnited Airlines
Deal found 10/29$662
This United Airlines deal was found by Cheapflights users on 10/29. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/3110:30 amSFO - ICN
Nonstop12h 40mUnited Airlines
Fri 11/1412:45 pmICN - SFO
Nonstop10h 45mUnited Airlines
Deal found 10/29$663
This FlightHub deal was found by Cheapflights users on 10/28. 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.
Thu 11/2712:00 pmSFO - GMP
1 stop38h 50mChina Eastern
Tue 12/98:50 pmGMP - SFO
2 stops34h 46mChina Eastern
Deal found 10/28$788

Cheapflights Fare Finder

 
Customize your flight search to find flights from Fremont 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, Cheapflights users made 2,558,603 searches. Data last updated October 29, 2025.
Use the filters below to find and compare flights from Fremont to Seoul that are best for you.

Fly from

Fremont

Fly to

Seoul

Route

Depart

Return

Price

San FranciscoIncheon

SFO - ICN

SFOICN

San Francisco

Sat 12/6

11:45 pm-5:40 am

Nonstop12h 55m

Incheon Intl

Sun 12/14

6:00 pm-11:35 am

Nonstop10h 35m

$661

San FranciscoIncheon

SFO - ICN

SFOICN

San Francisco

Fri 12/26

11:45 pm-5:40 am

Nonstop12h 55m

Incheon Intl

Sun 1/11

6:00 pm-11:35 am

Nonstop10h 35m

$661

San FranciscoIncheon

SFO - ICN

SFOICN

San Francisco

Wed 12/3

11:45 pm-5:40 am

Nonstop12h 55m

Incheon Intl

Sat 12/20

6:00 pm-11:35 am

Nonstop10h 35m

$661

San FranciscoIncheon

SFO - ICN

SFOICN

San Francisco

Sat 1/10

7:00 am-6:35 pm

1 stop18h 35m

Incheon Intl

Sun 1/18

8:35 pm-8:12 pm

1 stop16h 37m

$676

San FranciscoIncheon

SFO - ICN

SFOICN

San Francisco

Sun 11/2

8:00 am-6:35 pm

1 stop17h 35m

Incheon Intl

Sun 11/9

8:35 pm-11:50 pm

1 stop20h 15m

$676

San FranciscoIncheon

SFO - ICN

SFOICN

San Francisco

Sat 11/1

11:45 pm-4:40 am

Nonstop12h 55m

Incheon Intl

Sat 11/8

12:45 pm-6:30 am

Nonstop10h 45m

$758

San FranciscoIncheon

SFO - ICN

SFOICN

San Francisco

Wed 11/5

6:59 pm-5:10 am

1 stop17h 11m

Incheon Intl

Wed 11/26

4:00 pm-9:30 am

Nonstop10h 30m

$866

San FranciscoIncheon

SFO - ICN

SFOICN

San Francisco

Mon 11/3

5:50 am-5:35 pm

1 stop18h 45m

Incheon Intl

Thu 11/13

4:00 pm-9:30 am

Nonstop10h 30m

$866

San FranciscoIncheon

SFO - ICN

SFOICN

San Francisco

Wed 11/19

6:00 am-5:35 pm

1 stop18h 35m

Incheon Intl

Sun 11/23

4:10 pm-3:57 pm

1 stop16h 47m

$876

San FranciscoIncheon

SFO - ICN

SFOICN

San Francisco

Thu 11/6

11:40 am-5:40 pm

Nonstop13h 00m

Incheon Intl

Sun 11/16

4:10 pm-9:35 am

1 stop34h 25m

$880

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/27

Showing 1-10 of 45 results
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Best time to book a flight from Fremont to Seoul

Have a flexible travel schedule? Discover the best time to fly to Seoul from Fremont 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 Fremont to Seoul

How far ahead should I book a flight from Fremont to Seoul?

Use this chart to determine the optimal time to book a round-trip flight from Fremont to Seoul. Price data was last updated on October 24, 2025.

To ensure you get the cheapest price possible for a flight from Fremont to Seoul, you should look to book at least 27 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Fremont to Seoul?

Currently, April is the cheapest month in which you can book a flight from Fremont to Seoul (average of $414). Flying from Fremont to Seoul in June is currently the most expensive (average of $693). 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 FR8 to SEL?

Find hourly flight availability from Fremont to Seoul. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 29, 2025.

When flying from Fremont to Seoul, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 7% versus a flight at noon.

What is the cheapest day to fly from Fremont to Seoul?

Use this chart to determine the cheapest time to fly round-trip from Fremont to Seoul. Price data was last updated on December 8, 2024.

Travelers seeking maximum savings on their Fremont to Seoul flight should consider departing on Wednesday at noon when fares are most often at their lowest. Saturday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

How much does it cost to fly round-trip from Fremont to Seoul?

Reviews of airlines servicing Seoul

Get insights into the airlines that provide service to Seoul. 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 Seoul. Reviews last updated October 29, 2025.
Peruse reviews from past customers who have flown with Korean Air, AIR PREMIA, and Asiana Airlines from Fremont to Seoul to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Korean Air
8.4
Very good
1,155 reviews

Crew

8.7

Overall

8.4

Comfort

8.3

Food

8.1

Boarding

8.5

Entertainment

8.2

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
1,155 reviews
Korean Air
8.4
Very good
1,155 reviews

Crew

8.7

Overall

8.4

Comfort

8.3

Food

8.1

Boarding

8.5

Entertainment

8.2

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
8.3
Very good
66 reviews
Korean Air
8.4
Very good
1,155 reviews

Crew

8.7

Overall

8.4

Comfort

8.3

Food

8.1

Boarding

8.5

Entertainment

8.2

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
8.2
Very good
483 reviews
Korean Air
8.4
Very good
1,155 reviews

Crew

8.7

Overall

8.4

Comfort

8.3

Food

8.1

Boarding

8.5

Entertainment

8.2

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
7.9
Good
7,993 reviews
Korean Air
8.4
Very good
1,155 reviews

Crew

8.7

Overall

8.4

Comfort

8.3

Food

8.1

Boarding

8.5

Entertainment

8.2

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
9,001 reviews
Korean Air
8.4
Very good
1,155 reviews

Crew

8.7

Overall

8.4

Comfort

8.3

Food

8.1

Boarding

8.5

Entertainment

8.2

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 Fremont to Seoul. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How popular is this Fremont to Seoul flight route?

    Flights from Fremont to Seoul have been viewed 398 times in the past calendar month.

  • How long is the flight from Fremont to Seoul?

    For as low as $661, United Airlines can have you in Seoul from Fremont in 12h 55m. The distance from Fremont to Seoul is about 5642 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines to fly from Fremont to Seoul one-way?

    To fly one-way, consider booking your trip with AIR PREMIA, which is currently one of the cheapest options available, starting at $353. China Eastern flights start at $511 while deals on EVA Air start at $600 one-way.

  • What are the most reliable airlines from Fremont to Seoul?

    The top 3 most reliable airlines when flying from Fremont to Seoul are AIR PREMIA (94%), Thai Airways (93%) and Singapore Airlines (93%).

  • What are the cheapest flights from Fremont to Seoul?

    On average you can expect to pay $1,102 for a flight from Fremont to Seoul. The cheapest flight overall is $344 while the most popular route, (San Francisco - Incheon Intl) is currently priced at $602.

  • Can I find deals for flights from Fremont to Seoul that include hotel bookings?

    Yes. In addition to deals on Fremont to Seoul flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Fremont to Seoul?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Fremont to Seoul.

  • Can I find deals for business class flights from Fremont to Seoul?

    Yes. Cheapflights offers flight deals from Fremont to Seoul 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 Fremont to Seoul?

    Currently, April is the cheapest month in which you can book a flight from Fremont to Seoul (average of $414). Flying from Fremont to Seoul in June is currently the most expensive (average of $693). 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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See prices for flight routes from nearby airports that may be better suited for you.
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Top 10 airlines flying from Fremont to Seoul

Discover the top 10 airlines that operate flights from Fremont to Seoul. 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 October 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
Hawaiian AirlinesCheapest$422Average$670FlexibilityNo cancel feeOn-time85%
AIR PREMIACheapest$610Average$799FlexibilityNo cancel feeOn-timeN/A
China EasternCheapest$622Average$714FlexibilityNo cancel feeOn-time62%
Asiana AirlinesCheapest$648Average$785FlexibilityNo cancel feeOn-time76%
Singapore AirlinesCheapest$651Average$848FlexibilityNo cancel feeOn-time81%
United AirlinesCheapest$660Average$772FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$672Average$1,075FlexibilityNo cancel feeOn-time75%
Korean AirCheapest$775Average$905FlexibilityNo cancel feeOn-time81%
Air CanadaCheapest$801Average$1,012FlexibilityNo cancel feeOn-time67%
Cathay PacificCheapest$805Average$875FlexibilityNo cancel feeOn-time72%

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