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$149+ 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 9/29. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — SJO
Oct 15 — Oct 221
Wed 10/15
Wed 10/22
1 adult, Economy
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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 September 15, 2025.

Round-trip from

$387
(Alaska Airlines)

One-way from

$149
(Kiwi.com)

Popular in

December

Cheapest in

May

Average price

$531
From Fremont to Costa Rica
Search Deals
One-way flight from Fremont to Costa Rica
Search Deals
Highest demand for flights based on searches. 15% potential increase in price ($115 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($36 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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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 September 15, 2025.

This Trip.com deal was found by Cheapflights users on 9/13. 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.
Mon 10/2712:00 pmSFO - LIR
1 stop17h 20mMultiple Airlines
Tue 11/411:20 amLIR - SFO
1 stop10h 50mMultiple Airlines
Deal found 9/13$373
This Alaska Airlines deal was found by Cheapflights users on 9/12. 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.
Tue 10/283:28 pmSFO - LIR
1 stop13h 52mAlaska Airlines
Tue 11/411:20 amLIR - SFO
1 stop22h 14mAlaska Airlines
Deal found 9/12$387
This Alaska Airlines deal was found by Cheapflights users on 9/14. 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.
Tue 10/2811:09 amSFO - LIR
1 stop18h 11mAlaska Airlines
Thu 11/611:20 amLIR - SFO
1 stop14h 38mAlaska Airlines
Deal found 9/14$390
This Alaska Airlines deal was found by Cheapflights users on 9/14. 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.
Tue 10/141:00 pmSFO - LIR
1 stop27h 28mAlaska Airlines
Thu 10/1610:00 amLIR - SFO
1 stop14h 58mAlaska Airlines
Deal found 9/14$397
This Alaska Airlines deal was found by Cheapflights users on 9/14. 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.
Tue 10/2811:09 amSFO - LIR
1 stop18h 11mAlaska Airlines
Fri 10/3112:17 pmLIR - SFO
1 stop20h 17mAlaska Airlines
Deal found 9/14$398
This Alaska Airlines deal was found by Cheapflights users on 9/14. 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 10/2711:09 amSFO - LIR
1 stop18h 11mAlaska Airlines
Wed 11/511:20 amLIR - SFO
1 stop10h 13mAlaska Airlines
Deal found 9/14$399
This Alaska Airlines deal was found by Cheapflights users on 9/14. 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.
Tue 10/283:28 pmSFO - LIR
1 stop13h 52mAlaska Airlines
Mon 11/311:20 amLIR - SFO
2 stops23h 35mAlaska Airlines
Deal found 9/14$401
This Copa Airlines deal was found by Cheapflights users on 9/14. 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.
Sun 10/121:31 amSFO - SJO
1 stop14h 03mCopa Airlines
Mon 10/208:49 amSJO - SFO
1 stop15h 50mCopa Airlines
Deal found 9/14$402
This Alaska Airlines deal was found by Cheapflights users on 9/15. 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.
Wed 11/128:00 amSFO - SJO
2 stops14h 38mAlaska Airlines
Wed 11/191:55 amSJO - SFO
2 stops19h 52mAlaska Airlines
Deal found 9/15$403
This Alaska Airlines deal was found by Cheapflights users on 9/15. 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.
Tue 11/119:51 amSFO - SJO
2 stops36h 47mAlaska Airlines
Mon 11/171:55 amSJO - SFO
2 stops17h 27mAlaska Airlines
Deal found 9/15$404
This Trip.com deal was found by Cheapflights users on 9/14. 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.
Mon 10/2712:00 pmSFO - LIR
1 stop17h 20mMultiple Airlines
Mon 11/311:20 amLIR - SFO
1 stop14h 49mMultiple Airlines
Deal found 9/14$404
This Kiwi.com deal was found by Cheapflights users on 9/14. 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 10/149:25 amSFO - SJO
2 stops12h 50mMultiple Airlines
Wed 10/223:05 pmSJO - SFO
2 stops20h 50mMultiple Airlines
Deal found 9/14$405

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 September 15, 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

Tue 11/11

9:12 am-12:38 am

1 stop13h 26m

San José Juan Santamaria Intl

Thu 11/20

1:45 am-5:54 pm

2 stops18h 09m

$403

San FranciscoSan José

SFO - SJO

SFOSJO

San Francisco

Thu 11/13

8:00 am-12:38 am

2 stops14h 38m

San José Juan Santamaria Intl

Wed 11/19

1:55 am-9:55 am

1 stop10h 00m

$403

San FranciscoSan José

SFO - SJO

SFOSJO

San Francisco

Sun 10/26

1:36 am-4:50 pm

2 stops14h 14m

San José Juan Santamaria Intl

Tue 11/4

4:08 am-11:17 pm

1 stop21h 09m

$407

San FranciscoSan José

SFO - SJO

SFOSJO

San Francisco

Wed 11/12

9:12 am-12:38 am

1 stop13h 26m

San José Juan Santamaria Intl

Mon 11/17

1:55 am-1:07 pm

1 stop13h 12m

$411

San FranciscoSan José

SFO - SJO

SFOSJO

San Francisco

Mon 10/6

1:31 am-6:58 pm

1 stop16h 27m

San José Juan Santamaria Intl

Sun 10/12

10:08 am-11:39 pm

1 stop14h 31m

$412

San FranciscoLiberia

SFO - LIR

SFOLIR

San Francisco

Sun 3/1

6:00 am-6:35 pm

1 stop10h 35m

Liberia

Wed 3/4

11:00 am-7:20 pm

1 stop10h 20m

$418

San FranciscoLiberia

SFO - LIR

SFOLIR

San Francisco

Tue 10/14

1:00 pm-5:28 pm

1 stop27h 28m

Liberia

Thu 10/23

10:00 am-8:48 am

2 stops47h 48m

$419

San FranciscoSan José

SFO - SJO

SFOSJO

San Francisco

Wed 11/12

9:12 am-12:38 am

1 stop13h 26m

San José Juan Santamaria Intl

Wed 11/19

1:55 am-1:07 pm

1 stop13h 12m

$420

San FranciscoSan José

SFO - SJO

SFOSJO

San Francisco

Wed 11/12

12:36 am-4:50 pm

2 stops14h 14m

San José Juan Santamaria Intl

Thu 11/20

9:17 am-11:17 pm

2 stops16h 00m

$422

San FranciscoSan José

SFO - SJO

SFOSJO

San Francisco

Wed 10/8

1:31 am-4:34 pm

1 stop14h 03m

San José Juan Santamaria Intl

Wed 10/15

4:11 am-11:39 pm

1 stop20h 28m

$422

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/14

Showing 1-10 of 43 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, September is the cheapest month in which you can book a flight from Fremont to Costa Rica (average of $398). Flying from Fremont to Costa Rica in March is currently the most expensive (average of $554). 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 September 15, 2025.

When flying from Fremont to Costa Rica, 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 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 Wednesday mornings when fares are most often at their lowest. Saturday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Fremont to Costa Rica

Explore weekly flight availability from Fremont to Costa Rica. 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 15, 2025.

The most flights from FR8 to CR0 are scheduled on a Monday (1 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (1 on average).

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 September 15, 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
10,000 reviews

Crew

8.5

Boarding

8.1

Entertainment

7.0

Food

7.1

Comfort

7.8

Overall

8.0

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
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Boarding

8.1

Entertainment

7.0

Food

7.1

Comfort

7.8

Overall

8.0

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
1,531 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Boarding

8.1

Entertainment

7.0

Food

7.1

Comfort

7.8

Overall

8.0

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
8,929 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Boarding

8.1

Entertainment

7.0

Food

7.1

Comfort

7.8

Overall

8.0

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
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Boarding

8.1

Entertainment

7.0

Food

7.1

Comfort

7.8

Overall

8.0

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
6.7
Okay
2,435 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Boarding

8.1

Entertainment

7.0

Food

7.1

Comfort

7.8

Overall

8.0

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 $403, Alaska Airlines can have you in Costa Rica from Fremont in 13h 26m. Fremont and Costa Rica are separated by a distance of 3039 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

    The cheapest flight price from Fremont to Costa Rica is $611. On average you can expect to pay $1,079. The most popular route, (San Francisco - San José Juan Santamaria Intl), can usually be booked for $358.

  • 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, September is the cheapest month in which you can book a flight from Fremont to Costa Rica (average of $398). Flying from Fremont to Costa Rica in March is currently the most expensive (average of $554). 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 September 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
AviancaCheapest$344Average$645FlexibilityNo cancel feeOn-time71%
DeltaCheapest$350Average$731FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$352Average$631FlexibilityNo cancel feeOn-time75%
Copa AirlinesCheapest$354Average$506FlexibilityNo cancel feeOn-time70%
American AirlinesCheapest$366Average$715FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$392Average$647FlexibilityNo cancel feeOn-time63%
JetBlueCheapest$402Average$511FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$415Average$773FlexibilityNo cancel feeOn-time69%
AeromexicoCheapest$952Average$1,262FlexibilityNo cancel feeOn-timeN/A

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