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$176+ Cheap flights from Fremont, CA to Costa Rica

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 1/12. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — SJO
Nov 29 — Dec 61
Sat 11/29
Sat 12/6
1 adult, Economy
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Find flight deals from Fremont to Costa Rica

Cheapest flights from Fremont to Costa Rica
Explore the most affordable flight options available from Fremont to Costa Rica. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 30, 2025.

This Expedia 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/128:00 amSFO - SJO
1 stop26h 56mJetBlue
Thu 11/202:00 pmSJO - SFO
1 stop11h 30mJetBlue
Deal found 10/28$413
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/278:53 pmSFO - SJO
1 stop24h 35mMultiple Airlines
Tue 12/98:05 pmSJO - SFO
2 stops27h 06mMultiple Airlines
Deal found 10/28$416
This Copa Airlines 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 Copa Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/2512:36 amSFO - SJO
1 stop16h 31mCopa Airlines
Fri 12/59:17 amSJO - SFO
2 stops16h 00mCopa Airlines
Deal found 10/30$417
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/1010:00 pmSFO - SJO
2 stops36h 25mMultiple Airlines
Thu 11/131:55 amSJO - SFO
1 stop15h 34mMultiple Airlines
Deal found 10/28$420
This Expedia 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/109:44 pmSFO - SJO
1 stop13h 12mJetBlue
Thu 11/202:00 pmSJO - SFO
1 stop11h 30mJetBlue
Deal found 10/28$421
This Copa 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 Copa Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/2612:36 amSFO - SJO
1 stop16h 19mCopa Airlines
Wed 12/104:08 amSJO - SFO
1 stop21h 09mCopa Airlines
Deal found 10/28$422
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/1010:00 pmSFO - SJO
2 stops36h 25mMultiple Airlines
Fri 11/211:30 amSJO - SFO
1 stop21h 17mMultiple Airlines
Deal found 10/28$423
This Cheapflightsfares 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/121:20 pmSFO - SJO
1 stop8h 20mAvianca
Sun 11/163:05 pmSJO - SFO
1 stop8h 45mAvianca
Deal found 10/29$424
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.
Mon 12/89:44 pmSFO - SJO
1 stop9h 08mJetBlue
Tue 12/162:01 pmSJO - SFO
1 stop21h 17mJetBlue
Deal found 10/28$425
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/1312:43 pmSFO - SJO
2 stops44h 56mMultiple Airlines
Wed 11/191:55 amSJO - SFO
1 stop20h 52mMultiple Airlines
Deal found 10/30$426
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.
Tue 11/2512:36 amSFO - SJO
1 stop11h 17mCopa Airlines
Wed 12/36:07 pmSJO - SFO
1 stop31h 10mCopa Airlines
Deal found 10/29$427
This Alaska 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/810:24 pmSFO - SJO
1 stop23h 24mAlaska Airlines
Mon 12/151:30 amSJO - SFO
1 stop13h 25mAlaska Airlines
Deal found 10/28$428

Cheap flight deals from Fremont to Costa Rica

Keep the following information in mind while searching for Fremont to Costa Rica flight deals. Data was last updated October 30, 2025.

Most accurate provider

CheapOair
3 stars

Most trusted provider

CheapOair
3 stars

Round-trip from

$413
(Expedia)

One-way from

$176
(Kiwi.com)

Popular in

December

Cheapest in

September

Average price

$569
Provider with most accurate pricing for San Francisco-San José Juan Santamaria Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for San Francisco-San José Juan Santamaria Intl flights.
Search Deals
From Fremont to Costa Rica
Search Deals
One-way flight from Fremont to Costa Rica
Search Deals
Highest demand for flights based on searches. 16% potential increase in price ($129 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($35 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Fremont to Costa Rica 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 Costa Rica that are best for you.

Fly from

Fremont

Fly to

Costa Rica

Route

Depart

Return

Price

San FranciscoSan José

SFO - SJO

SFOSJO

San Francisco

Mon 12/8

11:40 am-11:48 pm

1 stop34h 08m

San José Juan Santamaria Intl

Mon 12/15

1:30 am-6:53 pm

1 stop19h 23m

$428

San FranciscoLiberia

SFO - LIR

SFOLIR

San Francisco

Fri 12/12

5:26 pm-6:20 am

1 stop10h 54m

Liberia

Sat 12/20

7:07 pm-7:38 am

1 stop14h 31m

$454

San FranciscoLiberia

SFO - LIR

SFOLIR

San Francisco

Mon 12/1

9:08 am-6:20 am

1 stop19h 12m

Liberia

Sat 12/6

6:23 pm-11:18 pm

Nonstop6h 55m

$456

San FranciscoLiberia

SFO - LIR

SFOLIR

San Francisco

Thu 1/1

11:14 am-6:20 am

1 stop17h 06m

Liberia

Wed 1/14

11:20 am-9:11 am

2 stops23h 51m

$466

San FranciscoSan José

SFO - SJO

SFOSJO

San Francisco

Wed 11/12

6:23 pm-12:38 am

2 stops28h 15m

San José Juan Santamaria Intl

Wed 11/19

1:55 am-11:50 pm

2 stops23h 55m

$469

San FranciscoLiberia

SFO - LIR

SFOLIR

San Francisco

Sat 1/24

11:59 pm-12:55 pm

1 stop10h 56m

Liberia

Sun 2/1

2:00 pm-11:30 pm

1 stop11h 30m

$476

San FranciscoSan José

SFO - SJO

SFOSJO

San Francisco

Fri 11/28

11:08 am-11:28 pm

1 stop10h 20m

San José Juan Santamaria Intl

Fri 12/5

1:30 am-6:53 pm

1 stop19h 23m

$478

San FranciscoLiberia

SFO - LIR

SFOLIR

San Francisco

Tue 12/30

10:35 pm-12:55 pm

1 stop12h 20m

Liberia

Thu 1/22

2:00 pm-11:30 pm

1 stop11h 30m

$485

San FranciscoLiberia

SFO - LIR

SFOLIR

San Francisco

Sat 11/29

12:43 am-6:37 pm

1 stop15h 54m

Liberia

Sun 12/7

8:35 am-11:59 pm

1 stop17h 24m

$487

San FranciscoLiberia

SFO - LIR

SFOLIR

San Francisco

Wed 12/31

10:35 pm-12:55 pm

1 stop12h 20m

Liberia

Sat 1/17

2:00 pm-11:30 pm

1 stop11h 30m

$489

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/28

Showing 1-10 of 42 results
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Best time to book a flight from Fremont to Costa Rica

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

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

Currently, January is the cheapest month in which you can book a flight from Fremont to Costa Rica (average of $248). Flying from Fremont to Costa Rica in December is currently the most expensive (average of $445). 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 CR?

Find hourly flight availability from Fremont to Costa Rica. 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.

A simple way to save on the total cost of your ticket is to fly from Fremont to Costa Rica in the afternoon. If you’re flexible enough to do this you can expect to save up to 28% on your trip compared to booking a flight at noon.

What is the cheapest day to fly from Fremont to Costa Rica?

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

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

Reviews of airlines servicing Costa Rica

Get insights into the airlines that provide service to Costa Rica. 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 Costa Rica. Reviews last updated October 30, 2025.
Get a feel of what it's like to fly with Alaska Airlines, Copa Airlines, and United Airlines from Fremont to Costa Rica by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
11,217 reviews

Overall

8.0

Boarding

8.1

Comfort

7.8

Crew

8.5

Food

7.1

Entertainment

7.0

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Alaska Airlines
8.0
Very good
11,217 reviews
Alaska Airlines
8.0
Very good
11,217 reviews

Overall

8.0

Boarding

8.1

Comfort

7.8

Crew

8.5

Food

7.1

Entertainment

7.0

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Copa Airlines
7.6
Good
1,561 reviews
Alaska Airlines
8.0
Very good
11,217 reviews

Overall

8.0

Boarding

8.1

Comfort

7.8

Crew

8.5

Food

7.1

Entertainment

7.0

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
United Airlines
7.4
Good
8,998 reviews
Alaska Airlines
8.0
Very good
11,217 reviews

Overall

8.0

Boarding

8.1

Comfort

7.8

Crew

8.5

Food

7.1

Entertainment

7.0

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
American Airlines
7.2
Good
11,035 reviews
Alaska Airlines
8.0
Very good
11,217 reviews

Overall

8.0

Boarding

8.1

Comfort

7.8

Crew

8.5

Food

7.1

Entertainment

7.0

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Avianca
6.6
Okay
2,467 reviews
Alaska Airlines
8.0
Very good
11,217 reviews

Overall

8.0

Boarding

8.1

Comfort

7.8

Crew

8.5

Food

7.1

Entertainment

7.0

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.

Related info for your journey

Find useful and relevant information for your journey from Fremont to Costa Rica. 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 Costa Rica flight route?

    The Fremont to Costa Rica flight path was viewed by 8 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • How long is the flight from Fremont to Costa Rica?

    For as low as $476, Alaska Airlines can have you in Costa Rica from Fremont in 10h 56m. Fremont and Costa Rica are separated by a distance of 2946 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 Costa Rica one-way?

    For one-way options, check prices for Alaska Airlines. According to our data, you can fly for as low as $184. Users have also found prices from $241 and $269 on Southwest and Copa Airlines, respectively.

  • What are the cheapest flights from Fremont to Costa Rica?

    The cheapest flight price from Fremont to Costa Rica is $561. On average you can expect to pay $977. The most popular route, (San Francisco - San José Juan Santamaria Intl), can usually be booked for $351.

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

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

  • How can I find direct flights from Fremont to Costa Rica?

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

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

    Yes. Cheapflights offers flight deals from Fremont to Costa Rica 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 Costa Rica?

    Currently, January is the cheapest month in which you can book a flight from Fremont to Costa Rica (average of $248). Flying from Fremont to Costa Rica in December is currently the most expensive (average of $445). 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 9 airlines flying from Fremont to Costa Rica

Discover the top 9 airlines that operate flights from Fremont to Costa Rica. 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
United AirlinesCheapest$324Average$744FlexibilityNo cancel feeOn-time69%
AviancaCheapest$344Average$563FlexibilityNo cancel feeOn-time71%
Copa AirlinesCheapest$348Average$519FlexibilityNo cancel feeOn-time70%
DeltaCheapest$350Average$731FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$352Average$625FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$362Average$707FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$380Average$690FlexibilityNo cancel feeOn-time63%
JetBlueCheapest$398Average$552FlexibilityNo cancel feeOn-time62%
AeromexicoCheapest$952Average$1,238FlexibilityNo cancel feeOn-timeN/A

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