$846+ 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 11/11. Fares are subject to change and may not be available on all flights or dates of travel.
ACV — SJO
Dec 6 — Dec 131
1 adult, Economy
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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 November 6, 2025.
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 November 6, 2025.
This United Airlines deal was found by Cheapflights users on 11/5. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/116:45 pmACV - LIR
2 stops19h 23mUnited Airlines
Thu 11/208:35 amLIR - ACV
2 stops15h 37mUnited Airlines
Deal found 11/5![United Airlines logo]()
$846
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 November 6, 2025.
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
Tue 11/11
6:45 pm-4:08 pm
2 stops19h 23m
Liberia
Thu 11/20
8:35 am-10:12 pm
2 stops15h 37m
$846
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.
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
What is the cheapest time of day to fly from EU9 to CR?
Find hourly flight availability from Eureka 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 November 6, 2025.
It’s optimal to fly from Eureka to Costa Rica in the afternoon. By choosing this option you can save up to 38% on the cost of your flight, compared to a flight in the morning.
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 November 6, 2025.
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.
Crew
8.1
Entertainment
7.1
Overall
7.4
Boarding
7.7
Comfort
7.3
Food
6.6
Reviews
1 / 20
4.0
OkayThomas,Mar 2025
SFO - TPE
Crew
8.1
Entertainment
7.1
Overall
7.4
Boarding
7.7
Comfort
7.3
Food
6.6
Reviews
1 / 20
4.0
OkayThomas,Mar 2025
SFO - TPE
Related info for your journey
Find useful and relevant information for your journey from Eureka to Costa Rica. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for Eureka to Costa Rica
See prices for flight routes from nearby airports that may be better suited for you.
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 November 6, 2025.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$561 | Average$795 | FlexibilityNo cancel fee | On-time69% |