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$340+ 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 12/29. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — SEL
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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Cheapflights Tip: The best prices from Fremont to Seoul are usually found in February or March, booked 90 days in advance, depart on a Monday or Wednesday and return on a Monday

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 September 11, 2025.

Round-trip from

$648
(WhyPayMore)

One-way from

$340
(SmartFares)

Popular in

December

Cheapest in

February

Average price

$746
From Fremont to Seoul (SEL)
Search Deals
One-way flight from Fremont to Seoul (SEL)
Search Deals
Highest demand for flights based on searches. 15% potential increase in price ($158 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 7% potential price decrease ($58 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 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 September 11, 2025.

This WhyPayMore deal was found by Cheapflights users on 9/10. 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 WhyPayMore is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/510:30 pmSFO - ICN
1 stop27h 55mMultiple Airlines
Wed 11/266:55 pmICN - SFO
Nonstop10h 05mMultiple Airlines
Deal found 9/10$648
This Kiwi.com deal was found by Cheapflights users on 9/11. 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.
Mon 10/2012:00 pmSFO - ICN
1 stop24h 50mMultiple Airlines
Fri 10/316:55 pmICN - SFO
Nonstop10h 05mMultiple Airlines
Deal found 9/11$649
This oojo deal was found by Cheapflights users on 9/10. 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 11/1010:30 pmSFO - ICN
1 stop27h 55mPhilippine Airlines
Fri 11/217:30 amICN - SFO
1 stop29h 00mPhilippine Airlines
Deal found 9/10$651
This FlightHub deal was found by Cheapflights users on 9/10. 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.
Wed 11/2611:45 amSFO - GMP
1 stop32h 20mAir China
Tue 12/22:25 pmGMP - SFO
1 stop35h 50mAir China
Deal found 9/10$652
This Trip.com deal was found by Cheapflights users on 9/9. 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.
Wed 11/2610:30 pmSFO - ICN
1 stop27h 55mMultiple Airlines
Wed 12/106:55 pmICN - SFO
Nonstop10h 05mMultiple Airlines
Deal found 9/9$652
This Kiwi.com deal was found by Cheapflights users on 9/11. 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.
Mon 11/175:28 pmSFO - ICN
1 stop18h 52mMultiple Airlines
Sat 11/228:35 pmICN - SFO
1 stop16h 39mMultiple Airlines
Deal found 9/11$653
This FlightHub deal was found by Cheapflights users on 9/9. 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.
Mon 11/312:00 pmSFO - GMP
1 stop30h 00mChina Eastern
Fri 11/78:50 pmGMP - SFO
1 stop29h 10mChina Eastern
Deal found 9/9$654
This FlightHub deal was found by Cheapflights users on 9/10. 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.
Mon 11/2412:00 pmSFO - ICN
1 stop32h 30mChina Eastern
Sun 12/74:10 pmICN - SFO
1 stop33h 50mChina Eastern
Deal found 9/10$654
This FlightHub deal was found by Cheapflights users on 9/11. 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.
Mon 11/1012:00 pmSFO - ICN
2 stops32h 15mChina Eastern
Fri 11/214:20 pmICN - SFO
1 stop33h 40mChina Eastern
Deal found 9/11$655
This Kiwi.com deal was found by Cheapflights users on 9/10. 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.
Mon 10/2012:00 pmSFO - ICN
1 stop24h 50mMultiple Airlines
Wed 11/126:55 pmICN - SFO
Nonstop10h 05mMultiple Airlines
Deal found 9/10$656
This Ovago deal was found by Cheapflights users on 9/11. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/22:30 pmSFO - ICN
Nonstop13h 00mAIR PREMIA
Sun 11/166:55 pmICN - SFO
Nonstop10h 05mAIR PREMIA
Deal found 9/11$657
This FlightHub deal was found by Cheapflights users on 9/10. 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.
Wed 11/1211:45 amSFO - GMP
1 stop32h 20mAir China
Tue 11/182:25 pmGMP - SFO
1 stop35h 50mAir China
Deal found 9/10$658

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 September 11, 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

Mon 12/1

12:00 pm-3:05 pm

1 stop34h 05m

Incheon Intl

Sun 12/14

2:30 pm-9:00 am

1 stop35h 30m

$654

San FranciscoIncheon

SFO - ICN

SFOICN

San Francisco

Mon 12/29

10:30 am-4:15 pm

Nonstop12h 45m

Incheon Intl

Sun 1/11

6:00 pm-11:35 am

Nonstop10h 35m

$662

San FranciscoIncheon

SFO - ICN

SFOICN

San Francisco

Mon 9/22

3:30 pm-8:30 pm

Nonstop13h 00m

Incheon Intl

Wed 10/29

6:55 pm-1:00 pm

Nonstop10h 05m

$662

San FranciscoIncheon

SFO - ICN

SFOICN

San Francisco

Wed 12/3

10:30 am-4:15 pm

Nonstop12h 45m

Incheon Intl

Thu 12/11

12:45 pm-6:30 am

Nonstop10h 45m

$662

San FranciscoIncheon

SFO - ICN

SFOICN

San Francisco

Sat 10/25

11:45 pm-4:40 am

Nonstop12h 55m

Incheon Intl

Sun 11/16

6:00 pm-11:35 am

Nonstop10h 35m

$662

San FranciscoIncheon

SFO - ICN

SFOICN

San Francisco

Sun 12/21

11:45 pm-5:40 am

Nonstop12h 55m

Incheon Intl

Mon 1/5

12:45 pm-6:30 am

Nonstop10h 45m

$662

San FranciscoIncheon

SFO - ICN

SFOICN

San Francisco

Sat 12/6

11:45 pm-5:40 am

Nonstop12h 55m

Incheon Intl

Fri 12/12

6:00 pm-11:35 am

Nonstop10h 35m

$662

San FranciscoIncheon

SFO - ICN

SFOICN

San Francisco

Fri 12/5

10:30 am-4:15 pm

Nonstop12h 45m

Incheon Intl

Tue 12/16

12:45 pm-6:30 am

Nonstop10h 45m

$662

San FranciscoIncheon

SFO - ICN

SFOICN

San Francisco

Fri 12/19

10:30 am-4:15 pm

Nonstop12h 45m

Incheon Intl

Sat 1/3

12:45 pm-6:30 am

Nonstop10h 45m

$662

San FranciscoIncheon

SFO - ICN

SFOICN

San Francisco

Sun 3/8

9:10 am-6:35 pm

1 stop17h 25m

Incheon Intl

Sun 3/15

8:35 pm-10:15 am

1 stop29h 40m

$682

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/11

Showing 1-10 of 41 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 August 29, 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, February is the cheapest month in which you can book a flight from Fremont to Seoul (average of $990). Flying from Fremont to Seoul in December is currently the most expensive (average of $1,633). 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 September 11, 2025.

When flying from Fremont to Seoul, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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 Tuesday afternoons when fares are most often at their lowest. Friday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Fremont to Seoul

Explore weekly flight availability from Fremont to Seoul. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated September 11, 2025.

The most flights from FR8 to SEL are scheduled on a Monday (11 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (10 on average).

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 September 11, 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
1,139 reviews

Crew

8.7

Overall

8.4

Entertainment

8.2

Comfort

8.3

Food

8.1

Boarding

8.5

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
1,139 reviews
Korean Air
8.4
Very good
1,139 reviews

Crew

8.7

Overall

8.4

Entertainment

8.2

Comfort

8.3

Food

8.1

Boarding

8.5

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
8.2
Very good
62 reviews
Korean Air
8.4
Very good
1,139 reviews

Crew

8.7

Overall

8.4

Entertainment

8.2

Comfort

8.3

Food

8.1

Boarding

8.5

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
479 reviews
Korean Air
8.4
Very good
1,139 reviews

Crew

8.7

Overall

8.4

Entertainment

8.2

Comfort

8.3

Food

8.1

Boarding

8.5

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
8.0
Very good
7,960 reviews
Korean Air
8.4
Very good
1,139 reviews

Crew

8.7

Overall

8.4

Entertainment

8.2

Comfort

8.3

Food

8.1

Boarding

8.5

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
8,937 reviews
Korean Air
8.4
Very good
1,139 reviews

Crew

8.7

Overall

8.4

Entertainment

8.2

Comfort

8.3

Food

8.1

Boarding

8.5

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 $662, China Eastern can have you in Seoul from Fremont in 12h 45m. 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 most reliable airlines from Fremont to Seoul?

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

  • What are the cheapest flights from Fremont to Seoul?

    On average you can expect to pay $1,821 for a flight from Fremont to Seoul. The cheapest flight overall is $342 while the most popular route, (San Francisco - Incheon Intl) is currently priced at $606.

  • 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, February is the cheapest month in which you can book a flight from Fremont to Seoul (average of $990). Flying from Fremont to Seoul in December is currently the most expensive (average of $1,633). 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

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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 September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
Hawaiian AirlinesCheapest$422Average$671FlexibilityNo cancel feeOn-time85%
AIR PREMIACheapest$615Average$784FlexibilityNo cancel feeOn-timeN/A
Asiana AirlinesCheapest$649Average$784FlexibilityNo cancel feeOn-time76%
China EasternCheapest$651Average$746FlexibilityNo cancel feeOn-time62%
Singapore AirlinesCheapest$651Average$848FlexibilityNo cancel feeOn-time81%
United AirlinesCheapest$660Average$803FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$675Average$1,075FlexibilityNo cancel feeOn-time75%
Korean AirCheapest$775Average$933FlexibilityNo cancel feeOn-time81%
Air CanadaCheapest$789Average$960FlexibilityNo cancel feeOn-time67%
Cathay PacificCheapest$809Average$883FlexibilityNo cancel feeOn-time72%

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