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$399+ Cheap flights from Fremont, CA to Busan (PUS)

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 4/5. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — PUS
Mar 8 — Mar 151
Sun 3/8
Sun 3/15
1 adult, Economy
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Cheap flight deals from Fremont to Busan

Cheapest flights from Fremont to Busan
Explore the most affordable flight options available from Fremont to Busan. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 6, 2026.

This FlightHub deal was found by Cheapflights users on 2/4. 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 3/212:00 pm
SFO
-
PUS
1 stop30h 35m
China Eastern
Tue 3/105:50 pm
PUS
-
SFO
2 stops37h 13m
China Eastern
Deal found 2/4$787
This Kiwi.com deal was found by Cheapflights users on 2/4. 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 3/211:25 am
SFO
-
PUS
1 stop32h 55m
Cathay Pacific
Tue 3/102:05 pm
PUS
-
SFO
1 stop36h 40m
Cathay Pacific
Deal found 2/4$788
This Kiwi.com deal was found by Cheapflights users on 2/3. 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.
Tue 2/39:45 pm
SFO
-
PUS
2 stops40h 35m
Multiple Airlines
Fri 2/207:40 am
PUS
-
SFO
1 stop21h 50m
Multiple Airlines
Deal found 2/3$791
This oojo deal was found by Cheapflights users on 2/5. 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.
Thu 10/112:30 am
SFO
-
PUS
1 stop27h 20m
Philippine Airlines
Sat 10/179:00 pm
PUS
-
SFO
1 stop40h 10m
Philippine Airlines
Deal found 2/5$843
This China Eastern deal was found by Cheapflights users on 2/4. 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 China Eastern is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/158:55 am
SFO
-
PUS
2 stops39h 55m
China Eastern
Wed 3/185:50 pm
PUS
-
SFO
1 stop32h 10m
China Eastern
Deal found 2/4$844
This Philippine Airlines deal was found by Cheapflights users on 2/2. 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 Philippine Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/1511:30 pm
SFO
-
PUS
1 stop20h 20m
Philippine Airlines
Wed 3/188:55 pm
PUS
-
SFO
1 stop39h 35m
Philippine Airlines
Deal found 2/2$865
This oojo deal was found by Cheapflights users on 2/6. 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.
Thu 10/2210:50 pm
SFO
-
PUS
1 stop40h 20m
Vietnam Airlines
Sat 11/79:30 am
PUS
-
SFO
1 stop24h 30m
Vietnam Airlines
Deal found 2/6$871
This oojo deal was found by Cheapflights users on 2/3. 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.
Fri 9/111:05 am
SFO
-
PUS
1 stop16h 25m
China Airlines
Sat 9/1910:30 am
PUS
-
SFO
1 stop25h 25m
China Airlines
Deal found 2/3$888
This FlightHub deal was found by Cheapflights users on 2/3. 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.
Tue 2/311:50 pm
SFO
-
PUS
1 stop23h 35m
Asiana Airlines
Fri 2/2012:30 pm
PUS
-
SFO
1 stop18h 30m
Asiana Airlines
Deal found 2/3$889
This Kiwi.com deal was found by Cheapflights users on 2/4. 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 2/410:30 pm
SFO
-
PUS
2 stops42h 35m
Multiple Airlines
Thu 2/128:20 am
PUS
-
SFO
1 stop22h 20m
Multiple Airlines
Deal found 2/4$969
This Delta deal was found by Cheapflights users on 2/3. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/121:00 pm
SFO
-
PUS
2 stops26h 45m
Delta
Sat 9/1910:40 am
PUS
-
SFO
1 stop16h 00m
Delta
Deal found 2/3$975
This Korean Air deal was found by Cheapflights users on 2/2. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/154:03 pm
SFO
-
PUS
2 stops24h 07m
Korean Air
Wed 3/187:00 am
PUS
-
SFO
1 stop19h 30m
Korean Air
Deal found 2/2$980

Find flight deals from Fremont to Busan

Keep the following information in mind while searching for Fremont to Busan flight deals. Data was last updated February 6, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$787
(FlightHub)

One-way from

$399
(Trip.com)

Popular in

December

Cheapest in

March

Average price

$954
Provider with most accurate pricing for San Francisco-Busan Gimhae flight deals.
Search Deals
Provider most trusted by Cheapflights users for San Francisco-Busan Gimhae flights.
Search Deals
From Fremont to Busan Gimhae
Search Deals
One-way flight from Fremont to Busan Gimhae
Search Deals
Highest demand for flights based on searches. 7% potential increase in price ($89 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($40 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Fremont to Busan 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 February 6, 2026.
Use the filters below to find and compare flights from Fremont to Busan that are best for you.

Fly from

Fremont

Fly to

Busan

Route

Depart

Return

Price

San FranciscoBusan

SFO - PUS

SFOPUS

San Francisco

Mon 3/2

12:00 pm-11:35 am

1 stop30h 35m

Busan Gimhae

Tue 3/10

5:50 pm-3:03 pm

2 stops37h 13m

$787

San FranciscoBusan

SFO - PUS

SFOPUS

San Francisco

Mon 3/2

11:25 am-1:20 pm

1 stop32h 55m

Busan Gimhae

Tue 3/10

2:05 pm-10:45 am

1 stop36h 40m

$788

San FranciscoBusan

SFO - PUS

SFOPUS

San Francisco

Sun 3/15

11:30 pm-11:50 am

1 stop20h 20m

Busan Gimhae

Wed 3/18

8:55 pm-8:30 pm

1 stop39h 35m

$865

San FranciscoBusan

SFO - PUS

SFOPUS

San Francisco

Sun 3/15

4:03 pm-8:10 am

2 stops24h 07m

Busan Gimhae

Wed 3/18

7:00 am-10:30 am

1 stop19h 30m

$980

San FranciscoBusan

SFO - PUS

SFOPUS

San Francisco

Sat 3/7

11:25 am-1:20 pm

1 stop32h 55m

Busan Gimhae

Sat 3/14

2:05 pm-5:20 pm

1 stop19h 15m

$986

San FranciscoBusan

SFO - PUS

SFOPUS

San Francisco

Sun 3/15

8:55 am-11:35 am

2 stops34h 40m

Busan Gimhae

Wed 3/18

5:50 pm-3:03 pm

2 stops37h 13m

$993

San FranciscoBusan

SFO - PUS

SFOPUS

San Francisco

Sat 3/21

11:30 pm-7:55 pm

1 stop28h 25m

Busan Gimhae

Sat 3/28

8:55 pm-9:10 pm

1 stop40h 15m

$1,000

San FranciscoBusan

SFO - PUS

SFOPUS

San Francisco

Sun 4/5

1:00 pm-7:00 am

1 stop26h 00m

$399

San FranciscoBusan

SFO - PUS

SFOPUS

San Francisco

Thu 2/12

10:30 pm-11:50 am

1 stop20h 20m

$441

San FranciscoBusan

SFO - PUS

SFOPUS

San Francisco

Tue 3/24

11:30 pm-7:55 pm

1 stop28h 25m

$442

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/3

Showing 1-10 of 18 results
1
2

Best time to book a flight from Fremont to Busan

Have a flexible travel schedule? Discover the best time to fly to Busan 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 Busan

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

Currently, March is the cheapest month in which you can book a flight from Fremont to Busan (average of $832). Flying from Fremont to Busan in December is currently the most expensive (average of $1,593). 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.

Reviews of airlines servicing Busan

Get insights into the airlines that provide service to Busan. 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 Busan. Reviews last updated February 6, 2026.
Peruse reviews from past customers who have flown with Korean Air and China Airlines from Fremont to Busan 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

Food

8.1

Entertainment

8.2

Boarding

8.5

Comfort

8.3

Crew

8.7

Overall

8.4

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

Food

8.1

Entertainment

8.2

Boarding

8.5

Comfort

8.3

Crew

8.7

Overall

8.4

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.
China Airlines
8.3
Very good
803 reviews
Korean Air
8.4
Very good
1,188 reviews

Food

8.1

Entertainment

8.2

Boarding

8.5

Comfort

8.3

Crew

8.7

Overall

8.4

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

  • What airport do you fly into for flights to Busan from Fremont?

    Located just 7.2 mi from the city center, Busan Gimhae is the airport most travelers will use when flying to Busan from Fremont. Booking flights from Fremont to Gimhae (PUS) should be relatively easy as there are 0 daily inbound flights from Fremont from 2 different airlines.

  • How long is the flight from Fremont to Busan?

    A quick flight from Fremont to Busan can take about 20h 20m. China Eastern provides one of the quickest options available for as low as $865. There are 5641 mi between Fremont and Busan. Both multi-stop and nonstop flights can be found to your destination and back.

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

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

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

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

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

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

    Currently, March is the cheapest month in which you can book a flight from Fremont to Busan (average of $832). Flying from Fremont to Busan in December is currently the most expensive (average of $1,593). 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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Top 2 airlines flying from Fremont to Busan

Discover the top 2 airlines that operate flights from Fremont to Busan. 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 February 6, 2026.
AirlineCheapestAverageFlexibilityOn-time
China AirlinesCheapest$857Average$1,223FlexibilityNo cancel feeOn-time70%
Korean AirCheapest$941Average$1,118FlexibilityNo cancel feeOn-time81%

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