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$354+ 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 2/6. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — SEL
Feb 27 — Mar 61
Fri 2/27
Fri 3/6
1 adult, Economy
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Cheapflights Tip: The best prices from Fremont to Seoul are usually found in February or November, booked 55 days in advance, depart on a Monday or Wednesday and return on a Wednesday

Cheap 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 January 28, 2026.

This Booking.com deal was found by Cheapflights users on 1/27. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/2212:30 am
SFO
-
ICN
1 stop26h 45m
Philippine Airlines
Mon 8/317:20 am
ICN
-
SFO
1 stop29h 50m
Philippine Airlines
Deal found 1/27$658
This KAYAK deal was found by Cheapflights users on 1/28. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 1/312:30 pm
SFO
-
ICN
Nonstop13h 00m
AIR PREMIA
Wed 2/186:55 pm
ICN
-
SFO
Nonstop10h 35m
AIR PREMIA
Deal found 1/28$660
This Kiwi.com deal was found by Cheapflights users on 1/26. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/42:30 pm
SFO
-
ICN
Nonstop13h 00m
AIR PREMIA
Fri 3/136:55 pm
ICN
-
SFO
Nonstop10h 35m
AIR PREMIA
Deal found 1/26$661
This United Airlines deal was found by Cheapflights users on 1/27. 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.
Sun 2/111:45 pm
SFO
-
ICN
Nonstop12h 55m
United Airlines
Fri 2/206:00 pm
ICN
-
SFO
Nonstop10h 35m
United Airlines
Deal found 1/27$662
This Kiwi.com deal was found by Cheapflights users on 1/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/47:40 pm
SFO
-
ICN
1 stop29h 55m
Multiple Airlines
Sat 2/288:35 pm
ICN
-
SFO
1 stop17h 01m
Multiple Airlines
Deal found 1/27$665
This Kiwi.com deal was found by Cheapflights users on 1/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/86:00 am
SFO
-
ICN
1 stop19h 35m
Multiple Airlines
Sun 2/158:35 pm
ICN
-
SFO
1 stop20h 24m
Multiple Airlines
Deal found 1/28$666
This Kiwi.com deal was found by Cheapflights users on 1/26. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/56:30 am
SFO
-
ICN
1 stop19h 05m
Multiple Airlines
Fri 3/138:35 pm
ICN
-
SFO
1 stop16h 01m
Multiple Airlines
Deal found 1/26$667
This Expedia deal was found by Cheapflights users on 1/28. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/19:00 am
SFO
-
ICN
1 stop16h 35m
Hawaiian Airlines
Sun 2/88:35 pm
ICN
-
SFO
1 stop16h 37m
Hawaiian Airlines
Deal found 1/28$669
This Trip.com deal was found by Cheapflights users on 1/27. 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.
Wed 2/2510:30 pm
SFO
-
ICN
1 stop27h 55m
Multiple Airlines
Wed 3/41:05 pm
ICN
-
SFO
1 stop17h 35m
Multiple Airlines
Deal found 1/27$670
This Kiwi.com deal was found by Cheapflights users on 1/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/56:30 am
SFO
-
ICN
1 stop19h 05m
Multiple Airlines
Mon 3/168:35 pm
ICN
-
SFO
1 stop19h 24m
Multiple Airlines
Deal found 1/27$671
This Kiwi.com deal was found by Cheapflights users on 1/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/1511:13 am
SFO
-
ICN
1 stop15h 22m
Multiple Airlines
Thu 4/237:35 pm
ICN
-
SFO
1 stop17h 48m
Multiple Airlines
Deal found 1/27$673
This Kiwi.com deal was found by Cheapflights users on 1/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/169:59 am
SFO
-
ICN
1 stop16h 36m
Multiple Airlines
Fri 4/247:35 pm
ICN
-
SFO
1 stop16h 39m
Multiple Airlines
Deal found 1/27$674

Find flight deals from Fremont to Seoul

Keep the following information in mind while searching for Fremont to Seoul flight deals. Data was last updated January 28, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$660
(SmartFares)

One-way from

$354
(FlightHub)

Popular in

June

Cheapest in

February

Average price

$702
Provider with most accurate pricing for San Francisco-Seoul (SEL) flight deals.
Search Deals
Provider most trusted by Cheapflights users for San Francisco-Seoul (SEL) flights.
Search Deals
From Fremont to Seoul (SEL)
Search Deals
One-way flight from Fremont to Seoul (SEL)
Search Deals
Highest demand for flights based on searches. 17% potential increase in price ($173 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($35 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

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 January 28, 2026.
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 3/2

11:45 pm-5:40 am

Nonstop12h 55m

Incheon Intl

Wed 3/11

11:45 am-6:30 am

Nonstop10h 45m

$662

San FranciscoIncheon

SFO - ICN

SFOICN

San Francisco

Tue 4/28

11:40 pm-4:20 am

Nonstop12h 40m

Incheon Intl

Wed 5/6

11:30 am-6:15 am

Nonstop10h 45m

$662

San FranciscoIncheon

SFO - ICN

SFOICN

San Francisco

Thu 4/23

11:40 pm-4:20 am

Nonstop12h 40m

Incheon Intl

Mon 5/4

4:50 pm-11:35 am

Nonstop10h 45m

$662

San FranciscoIncheon

SFO - ICN

SFOICN

San Francisco

Sat 2/7

11:45 pm-5:40 am

Nonstop12h 55m

Incheon Intl

Tue 2/17

6:00 pm-11:35 am

Nonstop10h 35m

$662

San FranciscoIncheon

SFO - ICN

SFOICN

San Francisco

Wed 2/25

11:45 pm-5:40 am

Nonstop12h 55m

Incheon Intl

Mon 3/16

11:45 am-6:30 am

Nonstop10h 45m

$662

San FranciscoIncheon

SFO - ICN

SFOICN

San Francisco

Thu 3/5

10:30 am-4:15 pm

Nonstop12h 45m

Incheon Intl

Tue 3/17

5:00 pm-11:35 am

Nonstop10h 35m

$662

San FranciscoIncheon

SFO - ICN

SFOICN

San Francisco

Sun 3/8

11:45 pm-4:40 am

Nonstop12h 55m

Incheon Intl

Thu 3/12

11:45 am-6:30 am

Nonstop10h 45m

$662

San FranciscoIncheon

SFO - ICN

SFOICN

San Francisco

Sun 3/1

11:45 pm-5:40 am

Nonstop12h 55m

Incheon Intl

Sat 3/14

5:00 pm-11:35 am

Nonstop10h 35m

$662

San FranciscoIncheon

SFO - ICN

SFOICN

San Francisco

Mon 3/2

10:30 am-4:15 pm

Nonstop12h 45m

Incheon Intl

Tue 3/17

11:45 am-6:30 am

Nonstop10h 45m

$662

San FranciscoIncheon

SFO - ICN

SFOICN

San Francisco

Sun 4/5

11:40 pm-4:20 am

Nonstop12h 40m

Incheon Intl

Tue 6/2

4:50 pm-12:00 pm

Nonstop11h 10m

$662

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/28

Showing 1-10 of 43 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 January 23, 2026.

To ensure you get the cheapest price possible for a flight from Fremont to Seoul, you should look to book at least 55 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 $446). Flying from Fremont to Seoul in June is currently the most expensive (average of $661). 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 January 28, 2026.

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 afternoon, which can drop the price by up to 14% versus a flight in the morning.

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 January 24, 2026.

Travelers seeking maximum savings on their Fremont to Seoul flight should consider departing on Wednesday afternoons 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.

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 January 28, 2026.

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 (8 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 January 28, 2026.
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
1,188 reviews

Boarding

8.5

Comfort

8.3

Entertainment

8.2

Overall

8.4

Crew

8.7

Food

8.1

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
1,188 reviews
Korean Air
8.4
Very good
1,188 reviews

Boarding

8.5

Comfort

8.3

Entertainment

8.2

Overall

8.4

Crew

8.7

Food

8.1

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
77 reviews
Korean Air
8.4
Very good
1,188 reviews

Boarding

8.5

Comfort

8.3

Entertainment

8.2

Overall

8.4

Crew

8.7

Food

8.1

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
8.1
Very good
501 reviews
Korean Air
8.4
Very good
1,188 reviews

Boarding

8.5

Comfort

8.3

Entertainment

8.2

Overall

8.4

Crew

8.7

Food

8.1

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
8,123 reviews
Korean Air
8.4
Very good
1,188 reviews

Boarding

8.5

Comfort

8.3

Entertainment

8.2

Overall

8.4

Crew

8.7

Food

8.1

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
9,208 reviews
Korean Air
8.4
Very good
1,188 reviews

Boarding

8.5

Comfort

8.3

Entertainment

8.2

Overall

8.4

Crew

8.7

Food

8.1

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, 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 Hawaiian Airlines, which is currently one of the cheapest options available, starting at $197. WestJet flights start at $308 while deals on AIR PREMIA start at $344 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 Delta (82%), Thai Airways (81%) and Singapore Airlines (81%).

  • What are the cheapest flights from Fremont to Seoul?

    On average you can expect to pay $1,372 for a flight from Fremont to Seoul. The cheapest flight overall is $338 while the most popular route, (San Francisco - Incheon Intl) is currently priced at $608.

  • 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 $446). Flying from Fremont to Seoul in June is currently the most expensive (average of $661). 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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Alternative routes for Fremont to Seoul

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 January 28, 2026.
AirlineCheapestAverageFlexibilityOn-time
AIR PREMIACheapest$569Average$742FlexibilityNo cancel feeOn-timeN/A
Japan AirlinesCheapest$630Average$956FlexibilityNo cancel feeOn-time79%
Singapore AirlinesCheapest$651Average$848FlexibilityNo cancel feeOn-time81%
United AirlinesCheapest$660Average$802FlexibilityNo cancel feeOn-time69%
Asiana AirlinesCheapest$661Average$807FlexibilityNo cancel feeOn-time76%
Alaska AirlinesCheapest$672Average$1,073FlexibilityNo cancel feeOn-time75%
Air CanadaCheapest$778Average$925FlexibilityNo cancel feeOn-time67%
Korean AirCheapest$803Average$917FlexibilityNo cancel feeOn-time81%
Cathay PacificCheapest$820Average$890FlexibilityNo cancel feeOn-time72%
DeltaCheapest$861Average$1,265FlexibilityNo cancel feeOn-timeN/A

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