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Eureka

$234+ Cheap flights from O'Hare Intl (ORD) to Eureka, CA

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 4/29. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — RDD
Jan 13 — Jan 201
Tue 1/13
Tue 1/20
1 adult, Economy
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Cheap flight deals from O'Hare Intl to Eureka

Cheapest flights from O'Hare Intl to Eureka
Explore the most affordable flight options available from O'Hare Intl to Eureka. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 14, 2025.

This United Airlines deal was found by Cheapflights users on 12/12. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/194:05 pmORD - ACV
2 stops20h 46mUnited Airlines
Sun 12/286:30 pmACV - ORD
2 stops13h 14mUnited Airlines
Deal found 12/12$906
This United Airlines deal was found by Cheapflights users on 12/12. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/197:55 pmORD - ACV
2 stops24h 03mUnited Airlines
Mon 12/294:12 pmACV - ORD
2 stops22h 47mUnited Airlines
Deal found 12/12$941

Find flight deals from O'Hare Intl to Eureka

Keep the following information in mind while searching for O'Hare Intl to Eureka flight deals. Data was last updated December 14, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$487
(Alaska Airlines)

One-way from

$234
(Alaska Airlines)
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 O'Hare Intl to Eureka
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One-way flight from Chicago O'Hare Intl to Eureka
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Cheapflights Fare Finder

 
Customize your flight search to find flights from O'Hare Intl 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 December 14, 2025.
Use the filters below to find and compare flights from Chicago O'Hare Intl Airport to Eureka that are best for you.

Fly from

O'Hare Intl

Fly to

Eureka

Route

Depart

Return

Price

ChicagoArcata

ORD - ACV

ORDACV

Chicago O'Hare Intl

Mon 4/13

6:50 pm-1:14 pm

1 stop20h 24m

Arcata Eureka

Sat 4/18

1:55 pm-1:59 pm

2 stops22h 04m

$497

ChicagoArcata

ORD - ACV

ORDACV

Chicago O'Hare Intl

Fri 1/9

8:50 am-10:28 pm

2 stops15h 38m

Arcata Eureka

Tue 1/13

12:30 pm-11:34 am

1 stop21h 04m

$551

ChicagoArcata

ORD - ACV

ORDACV

Chicago O'Hare Intl

Fri 1/9

8:50 am-10:28 pm

2 stops15h 38m

Arcata Eureka

Fri 2/6

3:40 pm-1:10 pm

1 stop19h 30m

$564

ChicagoArcata

ORD - ACV

ORDACV

Chicago O'Hare Intl

Mon 4/13

9:45 pm-12:04 pm

2 stops16h 19m

Arcata Eureka

Sat 4/18

6:40 pm-9:43 am

2 stops13h 03m

$604

ChicagoArcata

ORD - ACV

ORDACV

Chicago O'Hare Intl

Wed 4/29

7:00 am-1:14 pm

1 stop8h 14m

$234

ChicagoArcata

ORD - ACV

ORDACV

Chicago O'Hare Intl

Thu 2/5

9:01 am-3:13 pm

1 stop8h 12m

$308

ChicagoArcata

ORD - ACV

ORDACV

Chicago O'Hare Intl

Fri 2/6

4:16 pm-10:28 pm

1 stop8h 12m

$308

ChicagoArcata

ORD - ACV

ORDACV

Chicago O'Hare Intl

Wed 4/29

9:00 am-10:26 pm

3 stops15h 26m

$678

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/12

Best time to book a flight from O'Hare Intl to Eureka

Have a flexible travel schedule? Discover the best time to fly to Eureka from O'Hare Intl 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 O'Hare Intl Airport to Eureka

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

Find hourly flight availability from O'Hare Intl 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 December 14, 2025.

One of the essential ways to save on airfare from Chicago O'Hare Intl Airport to Eureka is to remain as flexible as possible. Flights that are in the afternoon tend to be the most expensive. A flight in the evening could potentially save you up to 8% on airfare.

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 December 14, 2025.
See what other customers who have flown with United Airlines from Chicago O'Hare Intl Airport to Eureka have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,092 reviews

Comfort

7.3

Entertainment

7.1

Food

6.6

Crew

8.1

Boarding

7.7

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
9,092 reviews
United Airlines
7.4
Good
9,092 reviews

Comfort

7.3

Entertainment

7.1

Food

6.6

Crew

8.1

Boarding

7.7

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 O'Hare Intl to Eureka. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Chicago O'Hare Intl Airport to Eureka?

    Alaska Airlines and United Airlines can get you from Chicago O'Hare Intl Airport to Eureka in just under 15h 38m. Your travel time can differ by up to 4h 46m. There are 1860 mi between Chicago O'Hare Intl Airport and Eureka. Both multi-stop and nonstop flights can be found to your destination and back.

  • Can I find deals for flights from O'Hare Intl to Eureka that include hotel bookings?

    Yes. In addition to deals on O'Hare Intl to Eureka flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from O'Hare Intl to Eureka?

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

  • Can I find deals for business class flights from O'Hare Intl to Eureka?

    Yes. Cheapflights offers flight deals from O'Hare Intl 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.

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Alternative routes for O'Hare Intl to Eureka

See prices for flight routes from nearby airports that may be better suited for you.
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Top airline flying from O'Hare Intl to Eureka

Discover the top airline that operate flights from O'Hare Intl 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 December 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$284Average$519FlexibilityNo cancel feeOn-time69%

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