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Eureka

$244+ 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 10/18. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — RDD
Oct 17 — Oct 241
Fri 10/17
Fri 10/24
1 adult, Economy
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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 September 17, 2025.

Round-trip from

$244
(United Airlines)

One-way from

$244
(United Airlines)

Popular in

March

Cheapest in

November

Average price

$398
From Colorado to Eureka
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One-way flight from Colorado to Eureka
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Highest demand for flights based on searches. 2% potential increase in price ($12 potential increase over avg. RT price).
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Cheapest flight prices on average. 0% potential price decrease ($4 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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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 September 17, 2025.

This United Airlines deal was found by Cheapflights users on 9/16. 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.
Sat 10/188:00 amDEN - ACV
1 stop7h 38mUnited Airlines
Fri 10/244:00 pmACV - DEN
1 stop7h 29mUnited Airlines
Deal found 9/16$244
This United Airlines deal was found by Cheapflights users on 9/15. 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.
Sun 10/196:03 amDEN - ACV
1 stop5h 49mUnited Airlines
Sun 10/263:50 pmACV - DEN
1 stop7h 40mUnited Airlines
Deal found 9/15$268
This United Airlines deal was found by Cheapflights users on 9/15. 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 9/306:03 amDEN - ACV
1 stop5h 54mUnited Airlines
Sat 10/44:11 pmACV - DEN
1 stop5h 16mUnited Airlines
Deal found 9/15$274
This United Airlines deal was found by Cheapflights users on 9/16. 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.
Thu 11/276:00 amDEN - ACV
1 stop5h 55mUnited Airlines
Tue 12/24:10 pmACV - DEN
1 stop7h 20mUnited Airlines
Deal found 9/16$284
This United Airlines deal was found by Cheapflights users on 9/15. 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.
Sat 10/1811:26 amDEN - ACV
Nonstop3h 03mUnited Airlines
Tue 10/214:11 pmACV - DEN
1 stop5h 16mUnited Airlines
Deal found 9/15$295
This United Airlines deal was found by Cheapflights users on 9/15. 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.
Thu 10/96:03 amDEN - ACV
1 stop5h 49mUnited Airlines
Sun 10/124:00 pmACV - DEN
1 stop7h 29mUnited Airlines
Deal found 9/15$324
This United Airlines deal was found by Cheapflights users on 9/15. 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 12/911:15 amDEN - ACV
Nonstop3h 15mUnited Airlines
Sat 12/1312:30 pmACV - DEN
Nonstop2h 44mUnited Airlines
Deal found 9/15$339
This United Airlines deal was found by Cheapflights users on 9/15. 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.
Wed 12/36:00 amDEN - ACV
1 stop5h 55mUnited Airlines
Sat 12/1312:30 pmACV - DEN
Nonstop2h 44mUnited Airlines
Deal found 9/15$349
This United Airlines deal was found by Cheapflights users on 9/15. 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.
Fri 10/1711:26 amDEN - ACV
Nonstop3h 03mUnited Airlines
Tue 10/214:00 pmACV - DEN
1 stop7h 29mUnited Airlines
Deal found 9/15$350

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 September 17, 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

Sat 10/18

8:00 am-2:38 pm

1 stop7h 38m

Arcata Eureka

Fri 10/24

4:00 pm-12:29 am

1 stop7h 29m

$244

DenverArcata

DEN - ACV

DENACV

Denver Intl

Wed 12/3

6:00 am-10:55 am

1 stop5h 55m

Arcata Eureka

Sun 12/14

4:10 pm-12:30 am

1 stop7h 20m

$244

DenverArcata

DEN - ACV

DENACV

Denver Intl

Sat 10/11

6:03 am-10:52 am

1 stop5h 49m

Arcata Eureka

Wed 10/15

4:00 pm-12:29 am

1 stop7h 29m

$244

DenverArcata

DEN - ACV

DENACV

Denver Intl

Sat 10/18

6:03 am-10:52 am

1 stop5h 49m

Arcata Eureka

Tue 10/21

4:00 pm-10:17 pm

1 stop5h 17m

$244

DenverArcata

DEN - ACV

DENACV

Denver Intl

Fri 10/17

6:03 am-10:52 am

1 stop5h 49m

Arcata Eureka

Tue 10/21

4:00 pm-12:29 am

1 stop7h 29m

$244

DenverArcata

DEN - ACV

DENACV

Denver Intl

Sun 10/19

6:03 am-10:52 am

1 stop5h 49m

Arcata Eureka

Sun 10/26

3:50 pm-12:30 am

1 stop7h 40m

$268

DenverArcata

DEN - ACV

DENACV

Denver Intl

Tue 9/30

6:03 am-10:57 am

1 stop5h 54m

Arcata Eureka

Sat 10/4

4:11 pm-10:27 pm

1 stop5h 16m

$274

DenverArcata

DEN - ACV

DENACV

Denver Intl

Fri 3/6

11:21 am-1:28 pm

Nonstop3h 07m

Arcata Eureka

Tue 3/10

5:00 pm-10:45 pm

1 stop4h 45m

$315

DenverArcata

DEN - ACV

DENACV

Denver Intl

Thu 10/9

6:03 am-10:52 am

1 stop5h 49m

$244

DenverArcata

DEN - ACV

DENACV

Denver Intl

Thu 2/12

9:47 am-10:18 pm

2 stops13h 31m

$288

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/16

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, February is the cheapest month in which you can book a flight from Colorado to Eureka (average of $340). Flying from Colorado to Eureka in June is currently the most expensive (average of $498). 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 September 17, 2025.

When flying from Colorado 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 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 September 17, 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 7h 38m. 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, February is the cheapest month in which you can book a flight from Colorado to Eureka (average of $340). Flying from Colorado to Eureka in June is currently the most expensive (average of $498). 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

See prices for flight routes from nearby airports that may be better suited for you.
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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 September 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$238Average$549FlexibilityNo cancel feeOn-time69%

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