HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Eureka

$395+ 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 4/28. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — ACV
Apr 20 — Apr 271
Sun 4/20
Sun 4/27
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from O'Hare Intl to Eureka with Cheapflights

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

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap 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 April 15, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$399
(United Airlines)

One-way from

$395

Popular in

December

Cheapest in

January

Average price

$488
Provider with most accurate pricing for Chicago (CHI)-Arcata Eureka flight deals.
Search Deals
Provider most trusted by Cheapflights users for Chicago (CHI)-Arcata Eureka flights.
Search Deals
From Chicago O'Hare Intl to Eureka
Search Deals
One-way flight from Chicago O'Hare Intl to Eureka
Search Deals
Highest demand for flights based on searches. 4% potential increase in price ($24 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease ($38 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2025
Search Deals

Find 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 April 15, 2025.

This United Airlines deal was found by Cheapflights users on 4/15. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/124:50 pmORD - ACV
1 stop7h 25mUnited Airlines
Thu 8/212:15 pmACV - ORD
1 stop8h 30mUnited Airlines
Deal found 4/15$399

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 April 15, 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

Tue 8/12

4:50 pm-10:15 pm

1 stop7h 25m

Arcata Eureka

Thu 8/21

2:15 pm-12:45 am

1 stop8h 30m

$399

ChicagoArcata

ORD - ACV

ORDACV

Chicago O'Hare Intl

Mon 4/28

6:30 am-12:14 pm

1 stop7h 44m

$395

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/14

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 April 15, 2025.

When flying from Chicago O'Hare Intl Airport 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 15, 2025.
United Airlines
7.4
Good
8,658 reviews

Food

6.6

Overall

7.4

Entertainment

7.1

Comfort

7.3

Crew

8.1

Boarding

7.7

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
8,658 reviews
United Airlines
7.4
Good
8,658 reviews

Food

6.6

Overall

7.4

Entertainment

7.1

Comfort

7.3

Crew

8.1

Boarding

7.7

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.

  • 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.

  • What is the cheapest month to book a flight from Chicago O'Hare Intl Airport to Eureka?

    Currently, January is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to Eureka (average of $343). Flying from Chicago O'Hare Intl Airport 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for O'Hare Intl to Eureka

See prices for flight routes from nearby airports that may be better suited for you.
O'Hare Intl to Las Vegas flights
O'Hare Intl to Los Angeles flights
Midway to Las Vegas flights
O'Hare Intl to San Francisco flights
O'Hare Intl to San Diego flights
O'Hare Intl to Santa Ana flights
O'Hare Intl to Ontario flights
Midway to San Francisco flights
O'Hare Intl to Burbank flights
Midway to Los Angeles flights
O'Hare Intl to Oakland flights
O'Hare Intl to Sacramento flights
O'Hare Intl to San Jose flights
Midway to San Diego flights
O'Hare Intl to Palm Springs flights
O'Hare Intl to Reno flights
Midway to Ontario flights
Midway to Santa Ana flights
Rockford to Las Vegas flights
O'Hare Intl to Fresno flights
Midway to Burbank flights
Midway to Palm Springs flights
Midway to Sacramento flights
Midway to San Jose flights
Midway to Oakland flights
Midway to Reno flights
O'Hare Intl to Santa Barbara flights
O'Hare Intl to Medford flights
O'Hare Intl to Long Beach flights
O'Hare Intl to San Luis Obispo flights
Midway to Fresno flights
O'Hare Intl to Santa Rosa flights
O'Hare Intl to Monterey flights
Midway to Long Beach flights
O'Hare Intl to Arcata flights
Midway to Medford flights
O'Hare Intl to Redding flights
O'Hare Intl to Tijuana flights
O'Hare Intl to Bakersfield flights
Midway to Tijuana flights
O'Hare Intl to Yuma flights
O'Hare Intl to Mammoth Lakes flights
O'Hare Intl to Mexicali flights
Midway to Mexicali flights
O'Hare Intl to Merced flights

Top 2 airlines flying from O'Hare Intl to Eureka

Discover the top 2 airlines 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 April 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$328Average$535FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$360Average$654FlexibilityNo cancel feeOn-time75%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.