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Eureka

$225+ Cheap flights from Colorado 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 1/21. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — RDD
Jan 7 — Jan 141
Wed 1/7
Wed 1/14
1 adult, Economy
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Cheap flight deals from Colorado to Eureka

Cheapest flights from Colorado to Eureka
Explore the most affordable flight options available from Colorado to Eureka. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 8, 2025.

This deal was found by Cheapflights users on 12/5. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/256:00 pmDEN - ACV
1 stop5h 28mUnited Airlines
Thu 1/16:30 pmACV - DEN
1 stop4h 56mUnited Airlines
Deal found 12/5$349
This United Airlines deal was found by Cheapflights users on 12/5. 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.
Mon 12/2211:17 amDEN - ACV
Nonstop3h 11mUnited Airlines
Fri 12/266:30 pmACV - DEN
1 stop4h 56mUnited Airlines
Deal found 12/5$400
This United Airlines deal was found by Cheapflights users on 12/5. 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 12/1911:17 amDEN - ACV
Nonstop3h 11mUnited Airlines
Mon 12/294:10 pmACV - DEN
1 stop7h 16mUnited Airlines
Deal found 12/5$430
This United Airlines deal was found by Cheapflights users on 12/7. 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 12/1211:15 amDEN - ACV
Nonstop3h 15mUnited Airlines
Tue 12/1612:30 pmACV - DEN
Nonstop2h 44mUnited Airlines
Deal found 12/7$470
This United Airlines deal was found by Cheapflights users on 12/6. 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.
Sun 12/2111:17 amDEN - ACV
Nonstop3h 11mUnited Airlines
Fri 12/266:30 pmACV - DEN
1 stop13h 10mUnited Airlines
Deal found 12/6$553

Find flight deals from Colorado to Eureka

Keep the following information in mind while searching for Colorado to Eureka flight deals. Data was last updated December 8, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$225
(United Airlines)

Popular in

November

Cheapest in

February

Average price

$374
Provider with most accurate pricing for Denver Intl-Arcata Eureka flight deals.
Search Deals
Provider most trusted by Cheapflights users for Denver Intl-Arcata Eureka flights.
Search Deals
From Colorado to Eureka
Search Deals
Highest demand for flights based on searches. 1% potential increase in price ($7 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($8 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Colorado 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 8, 2025.
Use the filters below to find and compare flights from Colorado to Eureka that are best for you.

Fly from

Colorado

Fly to

Eureka

Route

Depart

Return

Price

DenverArcata

DEN - ACV

DENACV

Denver Intl

Thu 2/5

10:08 am-2:46 pm

1 stop5h 38m

Arcata Eureka

Sun 2/8

2:09 pm-10:26 pm

1 stop7h 17m

$244

DenverArcata

DEN - ACV

DENACV

Denver Intl

Wed 1/21

1:35 pm-5:33 pm

1 stop4h 58m

Arcata Eureka

Sun 1/25

2:09 pm-8:12 pm

1 stop5h 03m

$244

DenverArcata

DEN - ACV

DENACV

Denver Intl

Thu 1/22

11:15 am-1:26 pm

Nonstop3h 11m

Arcata Eureka

Wed 1/28

12:30 pm-4:18 pm

Nonstop2h 48m

$305

DenverArcata

DEN - ACV

DENACV

Denver Intl

Fri 1/30

11:15 am-1:26 pm

Nonstop3h 11m

Arcata Eureka

Sun 2/1

12:30 pm-4:18 pm

Nonstop2h 48m

$305

DenverArcata

DEN - ACV

DENACV

Denver Intl

Thu 1/8

11:15 am-1:26 pm

Nonstop3h 11m

Arcata Eureka

Mon 1/12

12:30 pm-4:18 pm

Nonstop2h 48m

$305

DenverArcata

DEN - ACV

DENACV

Denver Intl

Thu 1/8

11:15 am-1:26 pm

Nonstop3h 11m

$274

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/5

Best time to book a flight from Colorado to Eureka

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

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

Currently, January is the cheapest month in which you can book a flight from Colorado to Eureka (average of $219). Flying from Colorado to Eureka in February is currently the most expensive (average of $304). 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 CO to EU9?

Find hourly flight availability from Colorado 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 8, 2025.

It’s typically best to fly out from Colorado to Eureka in the evening. Doing so could potentially save you 19% on the flight price compared to flying at noon, which is usually more expensive.

Weekly flight availability from Colorado to Eureka

Explore weekly flight availability from Colorado 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 December 8, 2025.

The most flights from USCO 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).

Related info for your journey

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

  • How popular is this Colorado to Eureka flight route?

    Within the past month, 1 users have taken a look at flights from Colorado to Eureka.

  • How long is the flight from Colorado to Eureka?

    Departing from Colorado to Eureka will take you 5h 38m. The distance from Colorado to Eureka is about 1022 mi.

  • What are the cheapest flights from Colorado to Eureka?

    While on average a flight from Colorado to Eureka is generally $219, our data shows the cheapest flight currently is $219. When looking at the most popular route, (Denver Intl - Arcata Eureka), you can expect to pay $225 for that flight.

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from Colorado to Eureka (average of $219). Flying from Colorado to Eureka in February is currently the most expensive (average of $304). 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.

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Alternative routes for Colorado to Eureka

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Top airline flying from Colorado to Eureka

Discover the top airline that operate flights from Colorado 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 8, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$219Average$456FlexibilityNo cancel feeOn-time69%

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