Prices were available within the past 7 days and start at $155 for one-way flights and $315 for roundtrip, for the period specified. Prices and availability are subject to change.
Find the cheapest month to fly from Denver (DEN) to Eureka (ACV)
February is typically the cheapest month to flyFebruary is typically the cheapest month to fly
From $225 - $832 per traveler.
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Denver (DEN) to Eureka (ACV) at a glance
Travel from Denver (DEN) to Eureka (ACV) with a range of airlines on this short domestic route. Discover cheap flights from Denver to Eureka and compare airfares to Eureka (ACV) from various full-service carriers to find the best itinerary for your budget and schedule. Whether you’re interested in exploring the scenic neighborhoods or iconic attractions of Eureka, key details for flights from Denver International Airport (DEN) to Arcata - Eureka Airport (ACV) are readily available.
Fastest flight duration: around 3 hours non-stop
Route distance: roughly 1,000 miles (1,610 km)
Flights per week: around 8 departures on average
Typical fares (one-way): economy tickets often range from $115–$415, depending on seasonality and how far ahead you book
Flights from Denver International Airport (DEN) to Arcata - Eureka Airport (ACV)
Based on the latest traveler bookings, here are the top airlines favored for flights from Denver to Eureka, featuring both non-stop and one-stop options. Common layover spots include San Francisco International Airport (SFO) with a layover of about 2 hours and Los Angeles International Airport (LAX) with around 1 hour and 45 minutes. These choices offer the flexibility to balance price, total travel time, and cabin class, helping you find the perfect itinerary for your journey.
United: This comprehensive airline provides both non-stop and one-stop options, with one-way tickets generally priced between $115 and $495. United operates around 99% of departures on this route, with a typical non-stop flight time of about 3 hours.
Travelers flying from Denver to Eureka can opt for an upgrade to first class, with United providing premium service on this route.
Best time to fly from Denver (DEN) to Eureka (ACV)
The most popular months for travelers flying from Denver to Eureka are January, May, and July, when peak temperatures in Eureka reach up to 60.8°F in July. If you prefer quieter travel, consider December, the least busy and relatively cheaper time to visit with fewer crowds and temperatures around 47.3°F. For better deals, February usually offers the lowest average one-way fare around $172. Flight availability peaks in July, with approximately 9 flights per week, making it easier to find convenient departure times.
Cheapest time to fly: February usually offers good deals with average one-way fare around $172, roughly 30% cheaper than the yearly average.
Another budget-friendly time to fly: December typically offers an average one-way fare of around $183.
Most flight options: July has the highest number of flights from Denver to Eureka, with approximately 9 flights per week, giving you more flexibility in scheduling your trip.
Month
Temperature
Demand
Weekly Flights
Average one-way Fare
January
48.2°F (9.0°C)
High
8
$217
February
47.3°F (8.5°C)
Average
8
$172
March
47.8°F (8.8°C)
Average
8
$268
April
50.4°F (10.2°C)
Average
8
$229
May
53.6°F (12.0°C)
High
8
$276
June
57.7°F (14.3°C)
Average
7
$254
July
60.8°F (16.0°C)
High
9
$239
August
61.2°F (16.2°C)
Low
7
$257
September
59.9°F (15.5°C)
Average
7
$239
October
56.1°F (13.4°C)
Average
8
$279
November
50.7°F (10.4°C)
Low
8
$339
December
47.3°F (8.5°C)
Low
7
$183
*Average one-way fare is based on Expedia flight booking data from January 2025 to April 2026 for the specified route and travel class and may change depending on availability, dates, and demand.
Alternative routes from Denver (DEN) to Eureka (ACV)
Denver to Eureka (DEN-EKA): Murray Field Airport (EKA) lies approximately 12 miles from Arcata - Eureka Airport (ACV).
Denver to Crescent City (DEN-CEC): Del Norte County Airport (CEC) is located about 56 miles from Arcata - Eureka Airport (ACV).
Colorado Springs to Eureka (COS-ACV): Colorado Springs Airport (COS) is roughly 73 miles from Denver International Airport (DEN).
How to find the best prices for flights from Denver (DEN) to Eureka (ACV)
Getting some of the best deals on flights from Denver to Eureka is all about timing and flexibility. Here are some key tips to help you save:
Best times to book and fly: cheaper fares are usually found when booking 2-8 weeks in advance, which is when most travelers make their reservations. Morning departures between 5 a.m. and 12 p.m. tend to offer lower prices and are also the most popular flight times. Additionally, flying on Thursday provides both more affordable options and ranks as the most favored travel day.
Set up price alerts: stay updated on price changes by using Expedia's Price Tracker. Receive alerts when fares drop for your selected route.
Bundle and save: bundle your flight and hotel to save on Expedia, or unlock a hotel deal after booking your flight.* Find Eureka hotel and flight deals.
Compare flight options: use Expedia's search tool to compare airlines, routes, direct vs. non-direct flights, and flight times. You can also sort by price to find the most affordable options.
Stay flexible with dates: being open to different travel days can sometimes help you find better prices on flights and hotels.
Think about luggage: nowadays, it's important to check the airline's baggage policies to find the best value. That may be paying for an additional carry-on bag or booking a ticket with checked luggage included. Either way, double-check your allowance before confirming your booking to avoid excess baggage fees at the airport.
*Members only. Savings vary and are not available on all bundles. Select hotels.
Arriving at Arcata - Eureka Airport from Denver International Airport
Eureka welcomes travelers from Denver with a range of transport options based on price, convenience, and proximity. Eureka city center is approximately a 25-minute drive (covering about 20 miles) from Arcata - Eureka Airport, depending on traffic. Here's how to reach Eureka efficiently:
Hotel transfer: Transfers offer a convenient way to reach your hotel in Eureka, with options including free hotel shuttles and private rides, which can be arranged in advance with your hotel.
Car rental: Renting a car from Arcata - Eureka Airport is a great option if you plan to explore and sightsee beyond the city. Browse cheap car rentals at Arcata - Eureka Airport on Expedia.
Taxi/ride-hailing: Taxis and ride-hailing services may be available from designated pickup areas outside the terminal, check locally on arrival.
Public transportation: From Arcata - Eureka Airport, Eureka/Arcata Seaport, a seaport, is located about 0.2 miles away on foot.
Denver to Eureka Flights
The cheapest times to fly from Denver 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 Denver to Eureka are during the month of December. You can find some of the cheapest flights from Denver to Eureka with Expedia's search tool and vast selection of airlines.
The best time to book a flight from Denver to Eureka
Sunday is one of the best days to book for cheap flights from Denver 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 Denver 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 Denver to Eureka in 2026. You can also book with separate airlines for your outbound and return journeys, from $155 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 Denver 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 Denver 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.
Frequently Asked Questions
How much does a flight from Denver, CO (DEN-Denver Intl.) to Eureka, CA (ACV-Arcata - Eureka) cost?
You can find cheap one-way flights from $155 and cheap return flights $315 Denver, CO (DEN-Denver Intl.) to Eureka, CA (ACV-Arcata - Eureka) with Expedia. One-way flights usually range from $158 to $740, and return flights typically cost between $259 and $1129. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when Denver, CO (DEN-Denver Intl.) to Eureka, CA (ACV-Arcata - Eureka) ticket fares go up or down.
*Typical price ranges based on flights available on Expedia in the last year. Prices include multi-airline options.
What is the cheapest month to fly from Denver, CO (DEN-Denver Intl.) to Eureka, CA (ACV-Arcata - Eureka)?
The cheapest month to fly from DEN to ACV is December when demand is low. Traveling in off-peak or shoulder months is usually a good way to secure cheap tickets, just remember to avoid flying during holidays if you're able to. Use the calendar view in your search to see which months have low fares on this route.
Which airlines fly direct from Denver, CO (DEN-Denver Intl.) to Eureka, CA (ACV-Arcata - Eureka)?
United offers around 8 weekly direct flights from DEN to ACV.
What is the cheapest airline that flies from Denver, CO (DEN-Denver Intl.) to Eureka, CA (ACV-Arcata - Eureka)?
United is one of the cheapest airlines offering nonstop flights from Denver, CO (DEN) to Eureka, CA (ACV), with round-trip tickets starting from around $472. Use Expedia's search tool to compare the prices and schedules of airlines that fly this route to find the best option for your plans and budget.
*Prices based on flights available on Expedia in the last year.
How do I find cheap flights from Denver, CO (DEN-Denver Intl.) to Eureka, CA (ACV-Arcata - Eureka)?
To find a cheap flight from Denver, CO (DEN-Denver Intl.) to Eureka, CA (ACV-Arcata - Eureka), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best airline to fly with from Denver, CO (DEN-Denver Intl.) to Eureka, CA (ACV-Arcata - Eureka)?
The best airline to fly with from Denver, CO (DEN) to Eureka, CA (ACV) will differ from traveler to traveler. If you like to fly early, United offers early morning flights. If price is the most important factor, United typically offers the lowest fares. United also offers the most daily flights from DEN to ACV, which is great if flexibility is what you value most. The best carrier for this journey could also be the one you have a loyalty membership with, as flying with that airline or another airline within the same alliance could help you collect points or enjoy lounge access.
What is the best time to fly from Denver, CO (DEN-Denver Intl.) to Eureka, CA (ACV-Arcata - Eureka)?
The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience.
How many flights per day from Denver, CO (DEN-Denver Intl.) to Eureka, CA (ACV-Arcata - Eureka)?
On average, there are around 1 nonstop flights per day from Denver Intl. (DEN) to Arcata - Eureka (ACV). For more options, look at flights that include layovers.
What is the earliest flight from Denver, CO (DEN-Denver Intl.) to Eureka, CA (ACV-Arcata - Eureka)?
The earliest flight from Denver International Airport (DEN) to Arcata - Eureka Airport (ACV) typically departs at around 5:00 AM local time, operated by United Airlines. This is a seasonal service active in August, making it a good option for summer travel. An early flight like this can help you make the most of your day in Eureka. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What are the most popular departure times for flights from Denver, CO (DEN-Denver Intl.) to Eureka, CA (ACV-Arcata - Eureka)?
The most popular departure times for flights from Denver, CO (DEN-Denver Intl.) to Eureka, CA (ACV-Arcata - Eureka) are from 9am to noon. About 44% of passengers prefer this time window. Many major carriers, including United Airlines and Alaska Airlines, offer flights during this window. This timing is favored because it allows travelers to enjoy a full day at their destination.
How long does it take to fly from Denver, CO (DEN-Denver Intl.) to Eureka, CA (ACV-Arcata - Eureka)?
A nonstop flight from DEN to ACV typically takes around 3 hours 20 minutes, covering approximately 1,023 miles. Connecting flights on this route usually add 2 hours 40 minutes to your travel time. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from Denver, CO (DEN-Denver Intl.) to Eureka, CA (ACV-Arcata - Eureka)?
First class seats are offered on the DEN to ACV route with United Airlines.
How do I earn miles on a Denver, CO (DEN-Denver Intl.) to Eureka, CA (ACV-Arcata - Eureka) flight with Expedia?
It's easy to earn miles on a Denver, CO (DEN-Denver Intl.) to Eureka, CA (ACV-Arcata - Eureka) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.
*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Eureka from Denver Intl. (DEN)?
If you're planning to travel to Eureka from Denver Intl. (DEN), you can fly into Arcata - Eureka (ACV) Some flights may connect through major hubs like Seattle - Tacoma Intl. (SEA), Salt Lake City Intl. (SLC), Los Angeles Intl. (LAX) before reaching Eureka. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Denver, CO (DEN-Denver Intl.) to Eureka, CA (ACV-Arcata - Eureka) at the last minute?
Typically, booking a last minute flight from Denver, CO (DEN-Denver Intl.) to Eureka, CA (ACV-Arcata - Eureka) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Denver, CO (DEN-Denver Intl.) to Eureka, CA (ACV-Arcata - Eureka) flight and hotel package?
Securing a Denver, CO (DEN-Denver Intl.) to Eureka, CA (ACV-Arcata - Eureka) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Denver, CO (DEN-Denver Intl.) to Eureka, CA (ACV-Arcata - Eureka)?
If you booked your Denver, CO (DEN-Denver Intl.) to Eureka, CA (ACV-Arcata - Eureka) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.