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Eureka

$384+ Cheap flights from Chicago (CHI) to Eureka, CA

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 8/22. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — ACV
Apr 22 — Apr 291
Tue 4/22
Tue 4/29
1 adult, Economy
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Cheap flight deals from Chicago to Eureka

Keep the following information in mind while searching for Chicago to Eureka flight deals. Data was last updated April 17, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$384
(United Airlines)

Popular in

November

Cheapest in

August

Average price

$442
Provider with most accurate pricing for Chicago (CHI)-Arcata Eureka flight deals.
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Provider most trusted by Cheapflights users for Chicago (CHI)-Arcata Eureka flights.
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From Chicago (CHI) to Eureka
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Highest demand for flights based on searches. 27% potential increase in price ($220 potential increase over avg. RT price).
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Cheapest flight prices on average. 7% potential price decrease ($40 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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Find flight deals from Chicago to Eureka

Cheapest flights from Chicago to Eureka
Explore the most affordable flight options available from Chicago to Eureka. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 17, 2025.

This United Airlines deal was found by Cheapflights users on 4/16. 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.
Fri 8/2210:49 amORD - ACV
1 stop8h 56mUnited Airlines
Thu 8/283:55 pmACV - ORD
1 stop6h 50mUnited Airlines
Deal found 4/16$384

Cheapflights Fare Finder

Customize your flight search to find flights from Chicago to Eureka 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 April 17, 2025.
Use the filters below to find and compare flights from Chicago to Eureka that are best for you.

Fly from

Chicago

Fly to

Eureka

Route

Depart

Return

Price

ChicagoArcata

ORD - ACV

ORDACV

Chicago O'Hare Intl

Fri 8/22

10:49 am-5:45 pm

1 stop8h 56m

Arcata Eureka

Thu 8/28

3:55 pm-12:45 am

1 stop6h 50m

$384

ChicagoArcata

ORD - ACV

ORDACV

Chicago O'Hare Intl

Thu 10/2

9:10 pm-5:49 pm

1 stop22h 39m

$605

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/17

Best time to book a flight from Chicago to Eureka

Have a flexible travel schedule? Discover the best time to fly to Eureka from Chicago 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 Chicago to Eureka

What is the cheapest time of day to fly from CHI to EU9?

Find hourly flight availability from Chicago to Eureka. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 17, 2025.

When flying from Chicago to Eureka, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Rainfall in Eureka by month

Plan your trip to Eureka by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Eureka ranges from 0.3 - 8.4 inches per month. December is typically the wettest month, when rainfall can reach 8.4 in. July is typically the driest time to visit Eureka when rainfall is around 0.3 in.

Temperature in Eureka by month

Plan your trip to Eureka by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Eureka, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 57.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 46.4 F).

Reviews of airlines servicing Eureka

Get insights into the airlines that provide service to Eureka. 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 Eureka. Reviews last updated April 17, 2025.
United Airlines
7.4
Good
8,667 reviews

Entertainment

7.0

Boarding

7.7

Comfort

7.3

Food

6.6

Crew

8.1

Overall

7.4

Reviews

1 / 20
8.0
Excellent

Ruth,Dec 2024

ORD - AMS

United Airlines flights seem to always use a bus to/from the boarding gate to the plane. Can they not get their own gate? This time there was no lift when leaving the plane and people in wheelchairs somehow had to climb down the steps to the ground to get to the bus. I udon’t know how some managed that!
United Airlines
7.4
Good
8,667 reviews
United Airlines
7.4
Good
8,667 reviews

Entertainment

7.0

Boarding

7.7

Comfort

7.3

Food

6.6

Crew

8.1

Overall

7.4

Reviews

1 / 20
8.0
Excellent

Ruth,Dec 2024

ORD - AMS

United Airlines flights seem to always use a bus to/from the boarding gate to the plane. Can they not get their own gate? This time there was no lift when leaving the plane and people in wheelchairs somehow had to climb down the steps to the ground to get to the bus. I udon’t know how some managed that!

Related info for your journey

Find useful and relevant information for your journey from Chicago to Eureka. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • Can I find deals for flights from Chicago to Eureka that include hotel bookings?

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

  • How can I find direct flights from Chicago to Eureka?

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

  • Can I find deals for business class flights from Chicago to Eureka?

    Yes. Cheapflights offers flight deals from Chicago to Eureka 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 Chicago to Eureka?

    Currently, January is the cheapest month in which you can book a flight from Chicago to Eureka (average of $343). Flying from Chicago to Eureka in June is currently the most expensive (average of $671). 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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Alternative routes for Chicago to Eureka

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Top 2 airlines flying from Chicago to Eureka

Discover the top 2 airlines that operate flights from Chicago to Eureka. 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 April 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$328Average$535FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$360Average$654FlexibilityNo cancel feeOn-time75%

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