$159 Cheap Flights from Chicago (ORD) to Eureka (ACV)

View $159 flight on Tue, Apr 28, 2026Opens in a new window

Popular airlines from Chicago O'Hare Intl. Airport (ORD) to Eureka, CA (ACV-Arcata - Eureka)

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Cheap Flights from Chicago to Eureka (ORD-ACV)

Prices were available within the past 7 days and start at $159 for one-way flights and $304 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Sat, Jul 4 - Thu, Jul 16
ORD
Chicago
ACV
Eureka
$304 Roundtrip, found 4 hours ago
$304
Roundtrip
found 4 hours ago
Select United flight, departing Sat, Jul 4 from Chicago to Eureka, returning Thu, Jul 16, priced at $304 found 4 hours ago
Alaska Airlines
Sat, Apr 25 - Sat, May 9
ORD
Chicago
ACV
Eureka
$312 Roundtrip, found 1 day ago
$312
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Sat, Apr 25 from Chicago to Eureka, returning Sat, May 9, priced at $312 found 1 day ago
United
Tue, Sep 15 - Sat, Sep 19
ORD
Chicago
ACV
Eureka
$317 Roundtrip, found 16 hours ago
$317
Roundtrip
found 16 hours ago
Select United flight, departing Tue, Sep 15 from Chicago to Eureka, returning Sat, Sep 19, priced at $317 found 16 hours ago
United
Tue, May 5 - Sat, May 9
ORD
Chicago
ACV
Eureka
$322 Roundtrip, found 1 day ago
$322
Roundtrip
found 1 day ago
Select United flight, departing Tue, May 5 from Chicago to Eureka, returning Sat, May 9, priced at $322 found 1 day ago
United
Tue, Apr 21 - Wed, Apr 29
ORD
Chicago
ACV
Eureka
$323 Roundtrip, found 6 days ago
$323
Roundtrip
found 6 days ago
Select United flight, departing Tue, Apr 21 from Chicago to Eureka, returning Wed, Apr 29, priced at $323 found 6 days ago
United
Tue, May 5 - Sat, May 9
ORD
Chicago
ACV
Eureka
$324 Roundtrip, found 1 day ago
$324
Roundtrip
found 1 day ago
Select United flight, departing Tue, May 5 from Chicago to Eureka, returning Sat, May 9, priced at $324 found 1 day ago
United
Sat, Jul 4 - Tue, Jul 14
ORD
Chicago
ACV
Eureka
$326 Roundtrip, found 2 days ago
$326
Roundtrip
found 2 days ago
Select United flight, departing Sat, Jul 4 from Chicago to Eureka, returning Tue, Jul 14, priced at $326 found 2 days ago
United
Sat, Jul 4 - Thu, Jul 16
ORD
Chicago
ACV
Eureka
$328 Roundtrip, found 4 hours ago
$328
Roundtrip
found 4 hours ago
Select United flight, departing Sat, Jul 4 from Chicago to Eureka, returning Thu, Jul 16, priced at $328 found 4 hours ago
United
Sat, Mar 7 - Tue, Mar 10
ORD
Chicago
ACV
Eureka
$329 Roundtrip, found 3 days ago
$329
Roundtrip
found 3 days ago
Select United flight, departing Sat, Mar 7 from Chicago to Eureka, returning Tue, Mar 10, priced at $329 found 3 days ago
United
Tue, Sep 15 - Sat, Sep 19
ORD
Chicago
ACV
Eureka
$330 Roundtrip, found 16 hours ago
$330
Roundtrip
found 16 hours ago
Select United flight, departing Tue, Sep 15 from Chicago to Eureka, returning Sat, Sep 19, priced at $330 found 16 hours ago

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Alternative airports near Eureka

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Arcata - Eureka ACV. Cheapest option available. Average driving time to city center is 20 minutes. Flights from $329
ACV
Arcata - Eureka
Cheapest
Average driving time to city center20 min
Flights from $329

Find the cheapest month to fly from Chicago (ORD) to Eureka (ACV)

February is typically the cheapest month to fly

From $283 - $697 per traveler.

Frequently asked questions

How much does a flight from O'Hare Intl. Airport (ORD) to Arcata - Eureka Airport (ACV) cost?
Get a cheap one-way flight from $159 or cheap return flight from $304 from O'Hare Intl. Airport (ORD) to Arcata - Eureka Airport (ACV) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from O'Hare Intl. Airport (ORD) to Arcata - Eureka Airport (ACV)?
The cheapest month to fly from ORD to ACV is July, when demand is low. Off-peak season is generally when better flight deals are available between these airports.
What is the cheapest airline that flies from O'Hare Intl. Airport (ORD) to Arcata - Eureka Airport (ACV)?
Expedia's filter tool lets you easily compare different airlines, travel time and fares all in one place. Select your preferences, then sort by "Price (lowest to highest)" to see which carrier offers the cheapest ORD to ACV flight.
How many flights per day from O'Hare Intl. Airport (ORD) to Arcata - Eureka Airport (ACV)?
Direct flights from O'Hare Intl. Airport (ORD) to Arcata - Eureka Airport (ACV) aren't available daily, so you'll need to take a flight with a layover. Explore your options with our filter tool. Enter your dates and select either "1 Stop" or "2+ Stops."
What day of the week has the most flights from ORD to ACV?
Generally you'll find the most flight options available on a Friday. Tuesdays tend to be the quietest.* However, this can change depending on the time of year, carrier and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from O'Hare Intl. Airport (ORD) to Arcata - Eureka Airport (ACV)?
To reach Arcata - Eureka Airport (ACV) without delays, select a flight that takes off from O'Hare Intl. Airport (ORD) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this hour.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from O'Hare Intl. Airport (ORD) to Arcata - Eureka Airport (ACV) last-minute?
Waiting until just before your departure to book your flight from ORD to ACV often results in higher prices. Although you may find some last-minute deals, they're not always guaranteed. Keep your travel schedule open to boost your chances of getting a bargain.
Is it cheaper to book an ORD to ACV flight and hotel package?
Compared with arranging hotels and flights separately, booking an ORD to ACV flight and hotel package with Expedia could lead to significant savings. Better yet, having everything in one place will take the hassle out of planning your trip. Just pick your flights and select from our wide range of stays, then customize your trip with extras like tours, activities and car rentals.
Can I cancel or change the date of my flight from O'Hare Intl. Airport (ORD) to Arcata - Eureka Airport (ACV)?
It's usually possible to reschedule or cancel your ORD to ACV flight. However, for bookings made more than 24 hours ago, additional fees may apply. Refer to your airline's policies in your itinerary to see what changes are possible and whether any costs are involved. You'll also find more information on our Customer Service portal.

Travel information

Origin airport
O'Hare Intl.
Destination airport
Arcata - Eureka
Airlines serving
Alaska Airlines, United
Roundtrip price
$304
Distance
1861 mi

Book with confidence

Chicago to Eureka Flights

The cheapest times to fly from Chicago to Eureka

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Chicago to Eureka are during the month of July. You can find some of the cheapest flights from Chicago to Eureka with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Chicago to Eureka

Sunday is one of the best days to book for cheap flights from Chicago to Eureka: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Chicago to Eureka

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Chicago to Eureka in 2026. You can also book with separate airlines for your outbound and return journeys, from $159 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Chicago to Eureka flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Chicago to Eureka airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Chicago to Eureka Flights

*Flight schedules are subject to change.

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