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Incheon Intl

$344+ Cheap flights from Fremont, CA to Incheon Intl (ICN)

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 — ICN
Nov 29 — Dec 61
Sat 11/29
Sat 12/6
1 adult, Economy
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Cheapflights Tip: The best prices from Fremont to Incheon Intl are usually found in February or January, booked 89 days in advance, depart on a Monday or Wednesday and return on a Wednesday

Cheap flight deals from Fremont to Incheon Intl

Keep the following information in mind while searching for Fremont to Incheon Intl flight deals. Data was last updated October 30, 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

June

Cheapest in

February

Average price

$784
Provider with most accurate pricing for San Francisco-Seoul (SEL) flight deals.
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From Fremont to Incheon Intl
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One-way flight from Fremont to Incheon Intl
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Highest demand for flights based on searches. 16% potential increase in price ($162 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($39 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 Incheon Intl

Cheapest flights from Fremont to Incheon Intl
Explore the most affordable flight options available from Fremont to Incheon Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 30, 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 10/30. 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 10/30$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 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 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.
Tue 12/211:45 pmSFO - ICN
Nonstop12h 55mUnited Airlines
Tue 12/236:00 pmICN - SFO
Nonstop10h 35mUnited Airlines
Deal found 10/27$661
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/2811:45 pmSFO - ICN
Nonstop12h 55mUnited Airlines
Sat 11/15:05 pmICN - SFO
Nonstop10h 30mUnited Airlines
Deal found 10/28$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 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.
Thu 10/3010:30 amSFO - ICN
Nonstop12h 40mUnited Airlines
Thu 11/612:45 pmICN - SFO
Nonstop10h 45mUnited Airlines
Deal found 10/29$664
This Flighttix 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 Flighttix is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/284:39 pmSFO - ICN
1 stop33h 56mHawaiian Airlines
Sat 11/18:35 pmICN - SFO
1 stop15h 38mHawaiian Airlines
Deal found 10/28$666

Cheapflights Fare Finder

 
Customize your flight search to find flights from Fremont to Incheon Intl 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 30, 2025.
Use the filters below to find and compare flights from Fremont to Incheon Intl Airport that are best for you.

Fly from

Fremont

Fly to

Incheon Intl

Route

Depart

Return

Price

San FranciscoIncheon

SFO - ICN

SFOICN

San Francisco

Sun 12/7

10:30 am-4:15 pm

Nonstop12h 45m

Incheon Intl

Fri 12/19

12:45 pm-6:30 am

Nonstop10h 45m

$661

San FranciscoIncheon

SFO - ICN

SFOICN

San Francisco

Thu 1/22

10:30 am-4:15 pm

Nonstop12h 45m

Incheon Intl

Tue 2/10

12:45 pm-6:30 am

Nonstop10h 45m

$661

San FranciscoIncheon

SFO - ICN

SFOICN

San Francisco

Mon 12/1

11:45 pm-5:40 am

Nonstop12h 55m

Incheon Intl

Fri 12/19

6:00 pm-11:35 am

Nonstop10h 35m

$661

San FranciscoIncheon

SFO - ICN

SFOICN

San Francisco

Thu 11/27

10:30 am-4:15 pm

Nonstop12h 45m

Incheon Intl

Sat 12/6

12:45 pm-6:30 am

Nonstop10h 45m

$661

San FranciscoIncheon

SFO - ICN

SFOICN

San Francisco

Wed 11/5

10:30 am-4:15 pm

Nonstop12h 45m

Incheon Intl

Wed 11/26

12:45 pm-6:30 am

Nonstop10h 45m

$666

San FranciscoIncheon

SFO - ICN

SFOICN

San Francisco

Sat 11/15

7:37 pm-6:35 pm

1 stop29h 58m

Incheon Intl

Sun 11/23

8:35 pm-11:36 pm

1 stop20h 01m

$681

San FranciscoIncheon

SFO - ICN

SFOICN

San Francisco

Fri 12/26

10:30 am-4:15 pm

Nonstop12h 45m

Incheon Intl

Thu 1/22

6:00 pm-11:35 am

Nonstop10h 35m

$726

San FranciscoIncheon

SFO - ICN

SFOICN

San Francisco

Thu 12/25

11:45 pm-5:40 am

Nonstop12h 55m

Incheon Intl

Sun 1/25

6:00 pm-11:35 am

Nonstop10h 35m

$777

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

Tue 11/11

3:35 pm-5:10 am

1 stop20h 35m

Incheon Intl

Tue 11/18

4:00 pm-9:30 am

Nonstop10h 30m

$866

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/29

Showing 1-10 of 23 results
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Best time to book a flight from Fremont to Incheon Intl

Have a flexible travel schedule? Discover the best time to fly to Incheon Intl 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 Incheon Intl Airport

How far ahead should I book a flight from Fremont to Incheon Intl Airport?

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

Booking 1 days in advance of your planned departure date is, on average, the best time to get cheap flights from Fremont to Incheon Intl Airport. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Fremont to Incheon Intl Airport?

Currently, April is the cheapest month in which you can book a flight from Fremont to Incheon Intl Airport (average of $414). Flying from Fremont to Incheon Intl Airport 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 ICN?

Find hourly flight availability from Fremont to Incheon Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 30, 2025.

Unlike at noon, when flights are generally more expensive, you can save up to 16% on flights from Fremont to Incheon Intl Airport by exploring options for tickets in the evening.

What is the cheapest day to fly from Fremont to Incheon Intl Airport?

Use this chart to determine the cheapest time to fly round-trip from Fremont to Incheon Intl. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Fremont to Incheon Intl Airport 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 Incheon Intl Airport?

Reviews of airlines servicing Incheon Intl

Get insights into the airlines that provide service to Incheon Intl. 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 Incheon Intl. Reviews last updated October 30, 2025.
Peruse reviews from past customers who have flown with Korean Air, AIR PREMIA, and Asiana Airlines from Fremont to Incheon Intl Airport 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

Comfort

8.3

Food

8.1

Entertainment

8.2

Boarding

8.5

Overall

8.4

Crew

8.7

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

Comfort

8.3

Food

8.1

Entertainment

8.2

Boarding

8.5

Overall

8.4

Crew

8.7

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

Comfort

8.3

Food

8.1

Entertainment

8.2

Boarding

8.5

Overall

8.4

Crew

8.7

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
484 reviews
Korean Air
8.4
Very good
1,155 reviews

Comfort

8.3

Food

8.1

Entertainment

8.2

Boarding

8.5

Overall

8.4

Crew

8.7

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
7,996 reviews
Korean Air
8.4
Very good
1,155 reviews

Comfort

8.3

Food

8.1

Entertainment

8.2

Boarding

8.5

Overall

8.4

Crew

8.7

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
8,998 reviews
Korean Air
8.4
Very good
1,155 reviews

Comfort

8.3

Food

8.1

Entertainment

8.2

Boarding

8.5

Overall

8.4

Crew

8.7

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 Incheon Intl. 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 Incheon Intl Airport flight route?

    Within the past month, 398 users have taken a look at flights from Fremont to Incheon Intl.

  • How long is the flight from Fremont to Incheon Intl Airport?

    A quick flight from Fremont to Incheon Intl Airport can take about 12h 45m. United Airlines provides one of the quickest options available for as low as $661. The distance from Fremont to Incheon Intl Airport is about 5642 mi. All flights are typically nonstop.

  • What are the cheapest airlines to fly from Fremont to Incheon Intl Airport one-way?

    The cheapest airline one-way is AIR PREMIA, with whom users have recently found tickets for as low as $344. However, be on the lookout for offers from Air Canada and China Eastern, as they are both options that can get you from Fremont to Incheon Intl Airport for a low price.

  • What are the most reliable airlines from Fremont to Incheon Intl Airport?

    No one likes to see their flight delayed. When booking a flight from Fremont to Incheon Intl Airport consider choosing AIR PREMIA (94%), Thai Airways (93%) or Singapore Airlines (93%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from Fremont to Incheon Intl Airport?

    The cheapest flight price from Fremont to Incheon Intl Airport is $344. On average you can expect to pay $1,102. The most popular route, (San Francisco - Incheon Intl), can usually be booked for $603.

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

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

  • How can I find direct flights from Fremont to Incheon Intl?

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

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

    Yes. Cheapflights offers flight deals from Fremont to Incheon Intl 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 Incheon Intl Airport?

    Currently, April is the cheapest month in which you can book a flight from Fremont to Incheon Intl Airport (average of $414). Flying from Fremont to Incheon Intl Airport 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

Traveling to a place near Incheon Intl Airport?

Book flights to Incheon Intl Airport if you plan to visit one of these locations
Suwon
Seongnam

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Alternative routes for Fremont to Incheon Intl

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 Incheon Intl

Discover the top 10 airlines that operate flights from Fremont to Incheon Intl. 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 30, 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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