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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 12/5. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — ACV
Dec 6 — Dec 131
Sat 12/6
Sat 12/13
1 adult, Economy
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Find 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 November 6, 2025.

This United Airlines deal was found by Cheapflights users on 11/6. 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.
Fri 12/511:15 amDEN - ACV
Nonstop3h 15mUnited Airlines
Mon 12/812:30 pmACV - DEN
Nonstop2h 44mUnited Airlines
Deal found 11/6$225
This United Airlines deal was found by Cheapflights users on 11/5. 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 12/57:46 amDEN - ACV
1 stop7h 58mUnited Airlines
Fri 12/126:45 pmACV - DEN
1 stop4h 45mUnited Airlines
Deal found 11/5$244
This United Airlines deal was found by Cheapflights users on 11/6. 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.
Fri 12/511:15 amDEN - ACV
Nonstop3h 15mUnited Airlines
Sat 12/612:30 pmACV - DEN
Nonstop2h 44mUnited Airlines
Deal found 11/6$305
This United Airlines deal was found by Cheapflights users on 11/6. 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.
Wed 12/36:00 amDEN - ACV
1 stop5h 55mUnited Airlines
Tue 12/912:30 pmACV - DEN
Nonstop2h 44mUnited Airlines
Deal found 11/6$315
This United Airlines deal was found by Cheapflights users on 11/6. 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.
Wed 12/36:00 amDEN - ACV
1 stop5h 55mUnited Airlines
Wed 12/106:45 pmACV - DEN
1 stop4h 45mUnited Airlines
Deal found 11/6$324
This United Airlines deal was found by Cheapflights users on 11/6. 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.
Tue 11/256:00 amDEN - ACV
1 stop5h 55mUnited Airlines
Sat 11/296:45 pmACV - DEN
1 stop6h 26mUnited Airlines
Deal found 11/6$344
This United Airlines deal was found by Cheapflights users on 11/6. 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.
Wed 12/311:15 amDEN - ACV
Nonstop3h 15mUnited Airlines
Sat 12/612:30 pmACV - DEN
Nonstop2h 44mUnited Airlines
Deal found 11/6$355
This United Airlines deal was found by Cheapflights users on 11/6. 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.
Fri 11/216:00 amDEN - ACV
1 stop5h 55mUnited Airlines
Tue 11/256:45 pmACV - DEN
1 stop4h 45mUnited Airlines
Deal found 11/6$374
This United Airlines deal was found by Cheapflights users on 11/6. 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.
Fri 12/511:15 amDEN - ACV
Nonstop3h 15mUnited Airlines
Wed 12/1012:30 pmACV - DEN
Nonstop2h 44mUnited Airlines
Deal found 11/6$380

Cheap flight deals from Colorado to Eureka

Keep the following information in mind while searching for Colorado to Eureka flight deals. Data was last updated November 6, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$225
(United Airlines)

Popular in

March

Cheapest in

November

Average price

$334
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. 0% potential increase in price ($3 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 0% potential price decrease ($4 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 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 November 6, 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 1/22

5:18 am-10:52 am

1 stop6h 34m

Arcata Eureka

Wed 1/28

3:40 pm-10:26 pm

1 stop5h 46m

$244

DenverArcata

DEN - ACV

DENACV

Denver Intl

Fri 12/5

7:46 am-2:44 pm

1 stop7h 58m

Arcata Eureka

Fri 12/12

6:45 pm-12:30 am

1 stop4h 45m

$244

DenverArcata

DEN - ACV

DENACV

Denver Intl

Fri 12/5

11:15 am-1:30 pm

Nonstop3h 15m

Arcata Eureka

Tue 12/9

12:30 pm-4:14 pm

Nonstop2h 44m

$305

DenverArcata

DEN - ACV

DENACV

Denver Intl

Sat 12/6

11:15 am-1:30 pm

Nonstop3h 15m

Arcata Eureka

Mon 12/8

12:30 pm-4:14 pm

Nonstop2h 44m

$305

DenverArcata

DEN - ACV

DENACV

Denver Intl

Thu 12/4

1:25 pm-5:54 pm

1 stop5h 29m

Arcata Eureka

Sun 12/7

12:30 pm-4:14 pm

Nonstop2h 44m

$315

DenverArcata

DEN - ACV

DENACV

Denver Intl

Fri 12/5

11:15 am-1:30 pm

Nonstop3h 15m

Arcata Eureka

Thu 12/11

4:10 pm-12:30 am

1 stop7h 20m

$315

DenverArcata

DEN - ACV

DENACV

Denver Intl

Wed 12/3

6:00 am-10:55 am

1 stop5h 55m

Arcata Eureka

Sat 12/6

12:30 pm-4:14 pm

Nonstop2h 44m

$315

DenverArcata

DEN - ACV

DENACV

Denver Intl

Wed 12/3

6:00 am-10:55 am

1 stop5h 55m

Arcata Eureka

Sun 12/7

12:30 pm-4:14 pm

Nonstop2h 44m

$315

DenverArcata

DEN - ACV

DENACV

Denver Intl

Sat 12/6

11:15 am-1:30 pm

Nonstop3h 15m

Arcata Eureka

Wed 12/10

6:45 pm-12:30 am

1 stop4h 45m

$315

DenverArcata

DEN - ACV

DENACV

Denver Intl

Sat 12/6

10:05 am-3:16 pm

1 stop6h 11m

$244

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/6

Showing 1-10 of 11 results
1
2

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, August is the cheapest month in which you can book a flight from Colorado to Eureka (average of $226). 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 November 6, 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 November 6, 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 long is the flight from Colorado to Eureka?

    Departing from Colorado to Eureka will take you 6h 34m. The distance from Colorado to Eureka is about 1022 mi.

  • 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, August is the cheapest month in which you can book a flight from Colorado to Eureka (average of $226). 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.

See more FAQs

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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 November 6, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$238Average$455FlexibilityNo cancel feeOn-time69%

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