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Eureka

$234+ Cheap flights from Denver (DEN) 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 8/25. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — ACV
Aug 4 — Aug 111
Mon 8/4
Mon 8/11
1 adult, Economy
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Cheapflights Tip: The best prices from Denver Intl to Eureka are usually found in November or February, booked 28 days in advance, depart on a Friday or Wednesday and return on a Friday

Cheap flight deals from Denver to Eureka

Keep the following information in mind while searching for Denver to Eureka flight deals. Data was last updated July 30, 2025.

Round-trip from

$259
(United Airlines)

One-way from

$234
(United Airlines)

Popular in

August

Cheapest in

November

Average price

$404
From Denver Intl to Eureka
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One-way flight from Denver Intl to Eureka
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Highest demand for flights based on searches. 6% potential increase in price ($26 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($9 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Find flight deals from Denver to Eureka

Cheapest flights from Denver to Eureka
Explore the most affordable flight options available from Denver to Eureka. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 30, 2025.

This United Airlines deal was found by Cheapflights users on 7/28. 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 8/125:00 amDEN - ACV
1 stop6h 53mUnited Airlines
Thu 8/214:09 pmACV - DEN
1 stop5h 18mUnited Airlines
Deal found 7/28$259

Cheapflights Fare Finder

 
Customize your flight search to find flights from Denver 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 July 30, 2025.
Use the filters below to find and compare flights from Denver to Eureka that are best for you.

Fly from

Denver

Fly to

Eureka

Route

Depart

Return

Price

DenverArcata

DEN - ACV

DENACV

Denver Intl

Tue 8/12

5:00 am-10:53 am

1 stop6h 53m

Arcata Eureka

Thu 8/21

4:09 pm-10:27 pm

1 stop5h 18m

$259

DenverArcata

DEN - ACV

DENACV

Denver Intl

Mon 8/25

11:20 am-1:23 pm

Nonstop3h 03m

$234

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/28

Best time to book a flight from Denver to Eureka

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

How far ahead should I book a flight from Denver to Eureka?

Use this chart to determine the optimal time to book a round-trip flight from Denver to Eureka. Price data was last updated on July 25, 2025.

Booking 28 days in advance of your planned departure date is, on average, the best time to get cheap flights from Denver to Eureka. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Denver to Eureka?

Currently, January is the cheapest month in which you can book a flight from Denver to Eureka (average of $343). Flying from Denver to Eureka in June is currently the most expensive (average of $572). 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.

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

Find hourly flight availability from Denver 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 July 30, 2025.

When flying from Denver 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.

Weekly flight availability from Denver to Eureka

Explore weekly flight availability from Denver to Eureka. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated July 30, 2025.

The most flights from DEN to EU9 are scheduled on a Monday (1 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (1 on average).

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 July 30, 2025.
Read reviews from past customers who have flown United Airlines from Denver to Eureka. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,896 reviews

Food

6.6

Comfort

7.3

Boarding

7.7

Overall

7.4

Entertainment

7.1

Crew

8.1

Reviews

1 / 20
4.0
Okay

Simon,Jun 2024

LAS - LAX

Basic and no-frills. Late timing put pressure on disembarking and making connections.
United Airlines
7.4
Good
8,896 reviews
United Airlines
7.4
Good
8,896 reviews

Food

6.6

Comfort

7.3

Boarding

7.7

Overall

7.4

Entertainment

7.1

Crew

8.1

Reviews

1 / 20
4.0
Okay

Simon,Jun 2024

LAS - LAX

Basic and no-frills. Late timing put pressure on disembarking and making connections.

Related info for your journey

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

  • What airport do you fly from for flights from Denver to Eureka?

    Denver Intl (DEN), located 18.5 mi from the city center, is the airport you fly out of when you book flights from Denver to Eureka. 1 airline have flights from Denver Intl to Eureka on a regular basis. Booking flights from Denver Intl to Eureka should not be difficult; the airport handles an average of 1 outbound flight to Eureka per day.

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from Denver to Eureka (average of $343). Flying from Denver to Eureka in June is currently the most expensive (average of $572). 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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Top airline flying from Denver to Eureka

Discover the top airline that operate flights from Denver 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 July 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$238Average$367FlexibilityNo cancel feeOn-time69%

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