$172+ Cheap flights from St. Louis (STL) to Eureka, CA
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/7. Fares are subject to change and may not be available on all flights or dates of travel.
STL — ACV
Aug 22 — Aug 291
Round-trip
1 adult, Economy
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Find cheap flights from St. Louis to Eureka with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from St. Louis to Eureka
Cheapest
Best
Last-minute
One-way
Cheapest flights from St. Louis to EurekaExplore the most affordable flight options available from St. Louis to Eureka. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 23, 2026.
Explore the most affordable flight options available from St. Louis to Eureka. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 23, 2026.
This Kiwi.com deal was found by Cheapflights users on 7/21. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/186:45 pm
STL
- ACV
1 stop18h 54m
Multiple Airlines
Tue 8/2512:20 pm
ACV
- STL
2 stops27h 30m
Multiple Airlines
Deal found 7/21![Multiple Airlines logo]()
$460
This Expedia deal was found by Cheapflights users on 7/19. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/196:29 am
STL
- ACV
1 stop10h 13m
Alaska Airlines
Sat 9/263:19 pm
ACV
- STL
1 stop21h 02m
Alaska Airlines
Deal found 7/19![Alaska Airlines logo]()
$494
This United Airlines deal was found by Cheapflights users on 7/19. 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 9/199:00 am
STL
- ACV
2 stops10h 37m
United Airlines
Sat 9/268:20 am
ACV
- STL
1 stop8h 23m
United Airlines
Deal found 7/19![United Airlines logo]()
$500
This Kiwi.com deal was found by Cheapflights users on 7/19. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/47:03 pm
STL
- ACV
1 stop18h 36m
Multiple Airlines
Sat 8/812:19 pm
ACV
- STL
1 stop27h 56m
Multiple Airlines
Deal found 7/19![Multiple Airlines logo]()
$501
This Alaska Airlines deal was found by Cheapflights users on 7/21. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/187:56 pm
STL
- ACV
1 stop20h 39m
Alaska Airlines
Tue 8/253:12 pm
ACV
- STL
1 stop20h 54m
Alaska Airlines
Deal found 7/21![Alaska Airlines logo]()
$524
This United Airlines deal was found by Cheapflights users on 7/21. 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 8/1812:59 pm
STL
- ACV
2 stops11h 28m
United Airlines
Tue 8/257:50 am
ACV
- STL
2 stops10h 56m
United Airlines
Deal found 7/21![United Airlines logo]()
$539
This United Airlines deal was found by Cheapflights users on 7/22. 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 8/299:00 am
STL
- ACV
1 stop6h 27m
United Airlines
Tue 9/17:50 am
ACV
- STL
2 stops10h 56m
United Airlines
Deal found 7/22![United Airlines logo]()
$604
This United Airlines deal was found by Cheapflights users on 7/21. 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 10/115:10 am
STL
- ACV
2 stops9h 15m
United Airlines
Sun 10/187:45 am
ACV
- STL
1 stop8h 58m
United Airlines
Deal found 7/21![United Airlines logo]()
$607
Best flights from St. Louis to EurekaDiscover carefully curated flight deals from St. Louis to Eureka that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 23, 2026.
Discover carefully curated flight deals from St. Louis to Eureka that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 23, 2026.
This Kiwi.com deal was found by Cheapflights users on 7/19. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/47:03 pm
STL
- ACV
1 stop18h 36m
Multiple Airlines
Sat 8/812:19 pm
ACV
- STL
1 stop27h 56m
Multiple Airlines
Deal found 7/19![Multiple Airlines logo]()
$501
This United Airlines deal was found by Cheapflights users on 7/19. 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 9/195:10 am
STL
- ACV
2 stops8h 26m
United Airlines
Sat 9/268:20 am
ACV
- STL
2 stops11h 01m
United Airlines
Deal found 7/19![United Airlines logo]()
$528
This Alaska Airlines deal was found by Cheapflights users on 7/22. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/293:04 pm
STL
- ACV
1 stop25h 31m
Alaska Airlines
Tue 9/13:12 pm
ACV
- STL
1 stop20h 52m
Alaska Airlines
Deal found 7/22![Alaska Airlines logo]()
$628
This United Airlines deal was found by Cheapflights users on 7/22. 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 8/299:00 am
STL
- ACV
1 stop6h 27m
United Airlines
Tue 9/17:50 am
ACV
- STL
2 stops10h 56m
United Airlines
Deal found 7/22![United Airlines logo]()
$604
Last-minute flights from St. Louis to EurekaDiscover last-minute flight deals from St. Louis to Eureka. Data last updated July 23, 2026 and is based on user searches.
Discover last-minute flight deals from St. Louis to Eureka. Data last updated July 23, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 7/19. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/47:03 pm
STL
- ACV
1 stop18h 36m
Multiple Airlines
Sat 8/812:19 pm
ACV
- STL
1 stop27h 56m
Multiple Airlines
Deal found 7/19![Multiple Airlines logo]()
$501
This Kiwi.com deal was found by Cheapflights users on 7/21. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/186:45 pm
STL
- ACV
1 stop18h 54m
Multiple Airlines
Tue 8/2512:20 pm
ACV
- STL
2 stops27h 30m
Multiple Airlines
Deal found 7/21![Multiple Airlines logo]()
$460
This Alaska Airlines deal was found by Cheapflights users on 7/21. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/187:56 pm
STL
- ACV
1 stop20h 39m
Alaska Airlines
Tue 8/253:12 pm
ACV
- STL
1 stop20h 54m
Alaska Airlines
Deal found 7/21![Alaska Airlines logo]()
$524
This United Airlines deal was found by Cheapflights users on 7/21. 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 8/1812:59 pm
STL
- ACV
2 stops11h 28m
United Airlines
Tue 8/257:50 am
ACV
- STL
2 stops10h 56m
United Airlines
Deal found 7/21![United Airlines logo]()
$539
This United Airlines deal was found by Cheapflights users on 7/22. 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 8/299:00 am
STL
- ACV
1 stop6h 27m
United Airlines
Tue 9/17:50 am
ACV
- STL
2 stops10h 56m
United Airlines
Deal found 7/22![United Airlines logo]()
$604
This Alaska Airlines deal was found by Cheapflights users on 7/22. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/293:04 pm
STL
- ACV
1 stop25h 31m
Alaska Airlines
Tue 9/13:12 pm
ACV
- STL
1 stop20h 52m
Alaska Airlines
Deal found 7/22![Alaska Airlines logo]()
$628
One-way flights from St. Louis to EurekaSearch for one-way flight options from St. Louis to Eureka. Find affordable one-way fares based on user searches. Data last updated July 23, 2026.
Search for one-way flight options from St. Louis to Eureka. Find affordable one-way fares based on user searches. Data last updated July 23, 2026.
This Kiwi.com deal was found by Cheapflights users on 7/22. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/76:17 pm
STL
- ACV
3 stops43h 54m
Multiple Airlines
Deal found 7/22![Multiple Airlines logo]()
$172
This Kiwi.com deal was found by Cheapflights users on 7/18. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/275:32 pm
STL
- ACV
1 stop20h 39m
Multiple Airlines
Deal found 7/18![Multiple Airlines logo]()
$193
This Kiwi.com deal was found by Cheapflights users on 7/19. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/47:03 pm
STL
- ACV
1 stop18h 36m
Multiple Airlines
Deal found 7/19![Multiple Airlines logo]()
$244
This Kiwi.com deal was found by Cheapflights users on 7/19. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/38:08 pm
STL
- ACV
2 stops41h 31m
Multiple Airlines
Deal found 7/19![Multiple Airlines logo]()
$278
This United Airlines deal was found by Cheapflights users on 7/21. 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 10/115:10 am
STL
- ACV
2 stops9h 15m
United Airlines
Deal found 7/21![United Airlines logo]()
$285
This Kiwi.com deal was found by Cheapflights users on 7/19. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/63:41 pm
STL
- ACV
3 stops45h 58m
Multiple Airlines
Deal found 7/19![Multiple Airlines logo]()
$287
This United Airlines deal was found by Cheapflights users on 7/22. 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 8/159:00 am
STL
- ACV
2 stops10h 50m
United Airlines
Deal found 7/22![United Airlines logo]()
$290
This Priceline deal was found by Cheapflights users on 7/21. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/117:02 am
STL
- ACV
1 stop9h 33m
Alaska Airlines
Deal found 7/21![Alaska Airlines logo]()
$330
Find flight deals from St. Louis to Eureka
Keep the following information in mind while searching for St. Louis to Eureka flight deals. Data was last updated July 23, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $460 (Kiwi.com) |
One-way from | $172 (Kiwi.com) |
Cheapflights Fare Finder
Customize your flight search to find flights from St. Louis 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 July 23, 2026.
Use the filters below to find and compare flights from St. Louis to Eureka that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
St. LouisArcata
STL - ACV
STLACV
Lambert-St Louis
Tue 8/4
7:03 pm-11:39 am
1 stop18h 36m
Arcata Eureka
Sat 8/8
12:19 pm-6:15 pm
1 stop27h 56m
$501
St. LouisArcata
STL - ACV
STLACV
Lambert-St Louis
Sat 9/19
5:10 am-11:36 am
2 stops8h 26m
Arcata Eureka
Sat 9/26
8:20 am-9:21 pm
2 stops11h 01m
$528
Quickest round-trip
St. LouisArcata
STL - ACV
STLACV
Lambert-St Louis
Sat 8/29
9:00 am-1:27 pm
1 stop6h 27m
Arcata Eureka
Tue 9/1
7:50 am-8:46 pm
2 stops10h 56m
$604
St. LouisArcata
STL - ACV
STLACV
Lambert-St Louis
Sat 8/29
3:04 pm-2:35 pm
1 stop25h 31m
Arcata Eureka
Tue 9/1
3:12 pm-2:04 pm
1 stop20h 52m
$628
Cheapest one-way
St. LouisArcata
STL - ACV
STLACV
Lambert-St Louis
Mon 9/7
7:58 pm-12:11 pm
2 stops42h 13m
$233
St. LouisArcata
STL - ACV
STLACV
Lambert-St Louis
Sat 8/15
9:00 am-5:50 pm
2 stops10h 50m
$290
St. LouisArcata
STL - ACV
STLACV
Lambert-St Louis
Tue 10/27
5:32 pm-11:39 am
3 stops44h 07m
$296
St. LouisArcata
STL - ACV
STLACV
Lambert-St Louis
Mon 8/3
6:02 am-2:13 pm
1 stop10h 11m
$383
St. LouisArcata
STL - ACV
STLACV
Lambert-St Louis
Wed 8/5
6:02 am-2:13 pm
1 stop10h 11m
$383
St. LouisArcata
STL - ACV
STLACV
Lambert-St Louis
Sun 8/2
7:23 pm-11:59 pm
1 stop6h 36m
$383
Showing 1-10 of 13 resultsSorted by cheapest first
Best time to book a flight from St. Louis to Eureka
Have a flexible travel schedule? Discover the best time to fly to Eureka from St. Louis with our price prediction graph.
STL-ACV
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 St. Louis to Eureka
STL-EU9
STL-ACV
No data available for this route at this time. Please check back soon.
Reviews of airlines servicing Eureka
Get insights into the airlines that provide service to Eureka. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Eureka. Reviews last updated July 23, 2026.
Peruse reviews from past customers who have flown with United Airlines from St. Louis to Eureka to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Crew
8.1
Food
6.6
Comfort
7.3
Boarding
7.7
Overall
7.4
Entertainment
7.1
Reviews
1 / 20
4.0
OkaySimon,Jun 2024
LAS - LAX
Crew
8.1
Food
6.6
Comfort
7.3
Boarding
7.7
Overall
7.4
Entertainment
7.1
Reviews
1 / 20
4.0
OkaySimon,Jun 2024
LAS - LAX
Related info for your journey
Find useful and relevant information for your journey from St. Louis to Eureka. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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St. Louis and Eureka flights
Browse other St. Louis and Eureka flight options. Last updated on July 23, 2026.
Other flights from St. Louis
Browse through other flights departing from St. Louis. Flights are based on user searches made on Cheapflights and were last updated on July 23, 2026.
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St. Louis to Eureka flights
Consider these flights traveling from St. Louis to Eureka.
Top airline flying from St. Louis to Eureka
Discover the top airline that operate flights from St. Louis 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 July 23, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$329 | Average$618 | FlexibilityNo cancel fee | On-time69% |