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$250 Cheap Flights from St. Louis (STL) to Eureka (ACV)

View $250 flight on Tue, Oct 20, 2026Opens in a new window

Popular airlines from St. Louis Lambert Intl. Airport (STL) to Eureka, CA (ACV-Arcata - Eureka)

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Cheap Flights from St. Louis to Eureka (STL-ACV)

Prices were available within the past 7 days and start at $250 for one-way flights and $494 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Tue, Oct 20 - Tue, Oct 27
STL
St. Louis
ACV
Eureka
$494 Roundtrip, just found
$494
Roundtrip
just found
Select United flight, departing Tue, Oct 20 from St. Louis to Eureka, returning Tue, Oct 27, priced at $494 just found
United
Tue, Oct 20 - Tue, Oct 27
STL
St. Louis
ACV
Eureka
$500 Roundtrip, just found
$500
Roundtrip
just found
Select United flight, departing Tue, Oct 20 from St. Louis to Eureka, returning Tue, Oct 27, priced at $500 just found
United
Tue, Oct 20 - Tue, Oct 27
STL
St. Louis
ACV
Eureka
$504 Roundtrip, just found
$504
Roundtrip
just found
Select United flight, departing Tue, Oct 20 from St. Louis to Eureka, returning Tue, Oct 27, priced at $504 just found
United
Tue, Oct 20 - Tue, Oct 27
STL
St. Louis
ACV
Eureka
$509 Roundtrip, just found
$509
Roundtrip
just found
Select United flight, departing Tue, Oct 20 from St. Louis to Eureka, returning Tue, Oct 27, priced at $509 just found
United
Sat, Sep 26 - Tue, Sep 29
STL
St. Louis
ACV
Eureka
$513 Roundtrip, found 1 day ago
$513
Roundtrip
found 1 day ago
Select United flight, departing Sat, Sep 26 from St. Louis to Eureka, returning Tue, Sep 29, priced at $513 found 1 day ago
United
Sat, Oct 3 - Sat, Oct 10
STL
St. Louis
ACV
Eureka
$516 Roundtrip, found 4 days ago
$516
Roundtrip
found 4 days ago
Select United flight, departing Sat, Oct 3 from St. Louis to Eureka, returning Sat, Oct 10, priced at $516 found 4 days ago
United
Tue, Oct 20 - Tue, Oct 27
STL
St. Louis
ACV
Eureka
$519 Roundtrip, just found
$519
Roundtrip
just found
Select United flight, departing Tue, Oct 20 from St. Louis to Eureka, returning Tue, Oct 27, priced at $519 just found
United
Sat, Oct 3 - Sat, Oct 10
STL
St. Louis
ACV
Eureka
$519 Roundtrip, found 4 days ago
$519
Roundtrip
found 4 days ago
Select United flight, departing Sat, Oct 3 from St. Louis to Eureka, returning Sat, Oct 10, priced at $519 found 4 days ago
United
Tue, Oct 20 - Tue, Oct 27
STL
St. Louis
ACV
Eureka
$523 Roundtrip, just found
$523
Roundtrip
just found
Select United flight, departing Tue, Oct 20 from St. Louis to Eureka, returning Tue, Oct 27, priced at $523 just found
Alaska Airlines
Tue, Aug 18 - Wed, Aug 26
STL
St. Louis
ACV
Eureka
$524 Roundtrip, just found
$524
Roundtrip
just found
Select Alaska Airlines flight, departing Tue, Aug 18 from St. Louis to Eureka, returning Wed, Aug 26, priced at $524 just found

Alternative airports near Eureka

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Arcata - Eureka ACV. Cheapest option available. Average driving time to city center is 20 minutes. Flights from $739
ACV
Arcata - Eureka
Cheapest
Average driving time to city center20 min
Flights from $739

What you need to know for your flight from Lambert-St. Louis Intl. to Arcata - Eureka

St. Louis (STL) to Eureka (ACV) at a glance

Travel with a selection of airlines on the domestic short-haul route from St. Louis (STL) to Eureka (ACV). Evaluate offerings from full-service carriers to discover the best itinerary that aligns with your budget, schedule, and travel preferences as you visit Eureka's renowned attractions and neighborhoods. Here, you’ll find essential information for flights departing from Lambert-St. Louis International Airport (STL) to Arcata - Eureka Airport (ACV).

  • Fastest flight duration: around 5h 30m in-flight, plus roughly 55 minutes layover with one stop
  • Route distance: roughly 1,800 miles (2,900 km)
  • Flights per week: around 7 departures on average
  • Typical fares (one-way): economy tickets often range from $155–$450, depending on seasonality and how far ahead you book

Flights from Lambert-St. Louis International Airport (STL) to Arcata - Eureka Airport (ACV)

Based on the latest traveler bookings, here are the top airlines preferred for flights from St. Louis to Eureka, featuring both one-stop and multi-stop options. Popular layovers include Denver International Airport (DEN) and San Francisco International Airport (SFO), both with convenient 55-minute layovers. This allows you to mix and match various factors, including price, total travel time, and cabin class, to craft the ideal itinerary for your journey.

  • United: This comprehensive airline provides both one-stop and multi-stop options, with one-way ticket prices generally falling between $165 and $450. United operates around 97% of flights on this route, typically featuring a one-stop flight duration of 5 hours and 30 minutes, and a total travel time of about 6 hours and 45 minutes.

Alternative routes from St. Louis (STL) to Eureka (ACV)

  • St. Louis to Eureka (STL-EKA): Murray Field Airport (EKA) is located approximately 12 miles from Arcata - Eureka Airport (ACV), offering convenient access for travelers.
  • St. Louis to Crescent City (STL-CEC): Del Norte County Airport (CEC) lies about 56 miles from Arcata - Eureka Airport (ACV), providing another viable travel option in the region.
  • Springfield to Eureka (SPI-ACV): Abraham Lincoln Capital Airport (SPI) is roughly 85 miles from Lambert-St. Louis International Airport (STL), making it a suitable departure point for flights to Eureka.

How to find the best prices for flights from St. Louis (STL) to Eureka (ACV)

Getting some of the best deals on flights from St. Louis to Eureka is all about timing and flexibility. Here are some key tips to help you save:

  1. Best times to book and fly: cheaper fares are usually found when booking at least two months in advance, which aligns with when most travelers make their reservations. Departures in the morning, between 5 AM and 12 PM, tend to offer lower prices and are also the most popular flight times. Additionally, flying on Tuesdays generally yields cheaper prices, although Wednesdays are the most popular travel days.
  2. Set up price alerts: stay updated on price changes by using Expedia's Price Tracker. Receive alerts when fares drop for your selected route.
  3. 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.
  4. 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.
  5. Stay flexible with dates: being open to different travel days can sometimes help you find better prices on flights and hotels.
  6. 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 Lambert-St. Louis International Airport

Eureka welcomes travelers from St. Louis 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.

Frequently asked questions

How much does a flight from St. Louis, MO (STL-Lambert-St. Louis Intl.) to Eureka, CA (ACV-Arcata - Eureka) cost?
You can find cheap one-way flights from $250 and cheap return flights from $494 St. Louis, MO (STL-Lambert-St. Louis Intl.) to Eureka, CA (ACV-Arcata - Eureka) with Expedia. One-way flights usually range from $347 to $883, and return flights typically cost between $511 and $1881. 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 St. Louis, MO (STL-Lambert-St. Louis 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 St. Louis, MO (STL-Lambert-St. Louis Intl.) to Eureka, CA (ACV-Arcata - Eureka)?
The cheapest month to fly from STL to ACV is October 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 St. Louis, MO (STL-Lambert-St. Louis Intl.) to Eureka, CA (ACV-Arcata - Eureka)?
Enter STL to ACV and your travel dates, then apply the 'Nonstop' filter to see only direct flights.
What is the cheapest airline that flies from St. Louis, MO (STL-Lambert-St. Louis Intl.) to Eureka, CA (ACV-Arcata - Eureka)?
United is one of the cheapest airlines offering connecting flights from Lambert-St. Louis Intl. (STL) to Arcata - Eureka (ACV) with a layover in O'Hare Intl. (ORD), starting from around $332. 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 St. Louis, MO (STL-Lambert-St. Louis Intl.) to Eureka, CA (ACV-Arcata - Eureka)?
To find a cheap flight from St. Louis, MO (STL-Lambert-St. Louis 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 time to fly from St. Louis, MO (STL-Lambert-St. Louis 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.
What is the earliest flight from St. Louis, MO (STL-Lambert-St. Louis Intl.) to Eureka, CA (ACV-Arcata - Eureka)?
The earliest flight from Lambert-St. Louis International (STL) to Arcata - Eureka (ACV) typically departs at around 5:00 AM, operated by United Airlines. This is a seasonal service active in March, giving you an early start to enjoy 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 St. Louis, MO (STL-Lambert-St. Louis Intl.) to Eureka, CA (ACV-Arcata - Eureka)?
The most popular departure times for flights from St. Louis (STL) to Eureka (ACV) are in the early morning, from 6am to 9am. About 44% of passengers prefer this time window. Many major carriers, including United Airlines and Delta, offer flights during this window. This timing works well because it allows you to start your day early and arrive in Eureka with plenty of time to explore.
How long does it take to fly from St. Louis, MO (STL-Lambert-St. Louis Intl.) to Eureka, CA (ACV-Arcata - Eureka)?
Flying from STL to ACV with a connection usually takes about 6 hours 30 minutes, traveling roughly 1,785 miles. 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 St. Louis, MO (STL-Lambert-St. Louis Intl.) to Eureka, CA (ACV-Arcata - Eureka)?
First class seats are offered on the STL to ACV route with United Airlines.
How do I earn miles on a St. Louis, MO (STL-Lambert-St. Louis Intl.) to Eureka, CA (ACV-Arcata - Eureka) flight with Expedia?
It's easy to earn miles on a St. Louis, MO (STL-Lambert-St. Louis 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 Lambert-St. Louis Intl. (STL)?
From Lambert-St. Louis Intl. (STL), you can fly into Arcata - Eureka (ACV) to reach Eureka. Some flights may connect through major hubs like O'Hare Intl. (ORD), Denver Intl. (DEN), Hartsfield-Jackson Atlanta Intl. (ATL) 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 St. Louis, MO (STL-Lambert-St. Louis Intl.) to Eureka, CA (ACV-Arcata - Eureka) at the last minute?
Typically, booking a last minute flight from St. Louis, MO (STL-Lambert-St. Louis 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 St. Louis, MO (STL-Lambert-St. Louis Intl.) to Eureka, CA (ACV-Arcata - Eureka) flight and hotel package?
Securing a St. Louis, MO (STL-Lambert-St. Louis 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 St. Louis, MO (STL-Lambert-St. Louis Intl.) to Eureka, CA (ACV-Arcata - Eureka)?
If you booked your St. Louis, MO (STL-Lambert-St. Louis 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.

Travel information

Origin airport
Lambert-St. Louis Intl.
Destination airport
Arcata - Eureka
Airlines serving
Alaska Airlines, United
Roundtrip price
$484
Distance
1785 mi

Book with confidence

St. Louis to Eureka Flights

The cheapest times to fly from St. Louis 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 St. Louis to Eureka are during the month of October. You can find some of the cheapest flights from St. Louis to Eureka with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from St. Louis to Eureka

Sunday is one of the best days to book for cheap flights from St. Louis 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 St. Louis 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 St. Louis to Eureka in 2026. You can also book with separate airlines for your outbound and return journeys, from $250 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 St. Louis 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 St. Louis 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.

 

St. Louis to Eureka Flights

*Flight schedules are subject to change.

*Available to One Key members.

 

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