$825+ Cheap flights from Eureka, CA to Costa Rica
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/1. Fares are subject to change and may not be available on all flights or dates of travel.
RDD — SJO
Mar 15 — Mar 221
1 adult, Economy
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1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Cheapest
Best
Last-minute
Cheapest flights from Eureka to Costa RicaExplore the most affordable flight options available from Eureka to Costa Rica. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 13, 2026.
Explore the most affordable flight options available from Eureka to Costa Rica. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 13, 2026.
This United Airlines deal was found by Cheapflights users on 2/9. 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 3/12:13 pm
ACV
- LIR
2 stops26h 24m
United Airlines
Wed 3/412:50 pm
LIR
- ACV
2 stops24h 04m
United Airlines
Deal found 2/9![United Airlines logo]()
$825
Best flights from Eureka to Costa RicaDiscover carefully curated flight deals from Eureka to Costa Rica that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated February 13, 2026.
Discover carefully curated flight deals from Eureka to Costa Rica that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated February 13, 2026.
This United Airlines deal was found by Cheapflights users on 2/9. 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 3/12:13 pm
ACV
- LIR
2 stops26h 24m
United Airlines
Wed 3/412:50 pm
LIR
- ACV
2 stops24h 04m
United Airlines
Deal found 2/9![United Airlines logo]()
$825
Last-minute flights from Eureka to Costa RicaDiscover last-minute flight deals from Eureka to Costa Rica. Data last updated February 13, 2026 and is based on user searches.
Discover last-minute flight deals from Eureka to Costa Rica. Data last updated February 13, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 2/10. 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 3/12:13 pm
ACV
- LIR
2 stops20h 42m
United Airlines
Wed 3/48:35 am
LIR
- ACV
2 stops16h 10m
United Airlines
Deal found 2/10![United Airlines logo]()
$825
Find flight deals from Eureka to Costa Rica
Keep the following information in mind while searching for Eureka to Costa Rica flight deals. Data was last updated February 13, 2026.
Round-trip from | $825 (United Airlines) |
|---|
Cheapflights Fare Finder
Customize your flight search to find flights from Eureka 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 February 13, 2026.
Use the filters below to find and compare flights from Eureka to Costa Rica that are best for you.
Fly from
Eureka
Fly to
Costa Rica
Route
Depart
Return
Price
ArcataLiberia
ACV - LIR
ACVLIR
Arcata Eureka
Sun 3/1
2:13 pm-6:37 pm
2 stops26h 24m
Liberia
Wed 3/4
12:50 pm-10:54 am
2 stops24h 04m
$825
Best time to book a flight from Eureka to Costa Rica
Have a flexible travel schedule? Discover the best time to fly to Costa Rica from Eureka with our price prediction graph.
ACV-LIR
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 Eureka to Costa Rica
EU9-CR0
ACV-LIR
No data available for this route at this time. Please check back soon.
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 February 13, 2026.
Read through reviews of airlines operating flights from Eureka to Costa Rica, such as United Airlines. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Comfort
7.3
Food
6.6
Crew
8.1
Overall
7.4
Entertainment
7.1
Boarding
7.7
Reviews
1 / 20
4.0
OkayThomas,Mar 2025
SFO - TPE
Comfort
7.3
Food
6.6
Crew
8.1
Overall
7.4
Entertainment
7.1
Boarding
7.7
Reviews
1 / 20
4.0
OkayThomas,Mar 2025
SFO - TPE
Related info for your journey
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Complete your trip
Complete your trip to Costa Rica by adding a car rental and/or hotel reservation to your travel itinerary.
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Eureka and Costa Rica flights
Browse other Eureka and Costa Rica flight options. Last updated on February 13, 2026.
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Eureka to Costa Rica flights
Consider these flights traveling from Eureka to Costa Rica.
Top airline flying from Eureka to Costa Rica
Discover the top airline that operate flights from Eureka 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 February 13, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$561 | Average$719 | FlexibilityNo cancel fee | On-time69% |