$158+ 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 9/14. Fares are subject to change and may not be available on all flights or dates of travel.
STL — ACV
Aug 12 — Aug 191
Round-trip
1 adult, Economy
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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
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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
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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 13, 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 13, 2026.
This Alaska Airlines deal was found by Cheapflights users on 7/8. 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.
Wed 10/287:00 am
STL
- ACV
1 stop9h 35m
Alaska Airlines
Sat 10/313:12 pm
ACV
- STL
1 stop6h 47m
Alaska Airlines
Deal found 7/8![Alaska Airlines logo]()
$376
This United Airlines deal was found by Cheapflights users on 7/8. 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 10/289:40 am
STL
- ACV
2 stops12h 18m
United Airlines
Sat 10/312:13 pm
ACV
- STL
1 stop5h 57m
United Airlines
Deal found 7/8![United Airlines logo]()
$486
This Alaska Airlines deal was found by Cheapflights users on 7/12. 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 10/277:00 am
STL
- ACV
1 stop9h 35m
Alaska Airlines
Sat 10/313:12 pm
ACV
- STL
1 stop6h 47m
Alaska Airlines
Deal found 7/12![Alaska Airlines logo]()
$514
This United Airlines deal was found by Cheapflights users on 7/13. 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 9/59:00 am
STL
- ACV
1 stop6h 27m
United Airlines
Sat 9/128:00 am
ACV
- STL
2 stops12h 59m
United Airlines
Deal found 7/13![United Airlines logo]()
$524
This United Airlines deal was found by Cheapflights users on 7/12. 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 8/27:23 pm
STL
- ACV
1 stop6h 36m
United Airlines
Thu 8/67:40 am
ACV
- STL
1 stop8h 37m
United Airlines
Deal found 7/12![United Airlines logo]()
$554
This Orbitz deal was found by Cheapflights users on 7/10. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/47:56 pm
STL
- ACV
1 stop20h 17m
Alaska Airlines
Thu 8/62:50 pm
ACV
- STL
1 stop7h 09m
Alaska Airlines
Deal found 7/10![Alaska Airlines logo]()
$559
This United Airlines deal was found by Cheapflights users on 7/11. 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 10/157:08 am
STL
- ACV
1 stop7h 00m
United Airlines
Sun 10/187:45 am
ACV
- STL
1 stop8h 58m
United Airlines
Deal found 7/11![United Airlines logo]()
$584
This Priceline deal was found by Cheapflights users on 7/9. 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.
Wed 8/56:02 am
STL
- ACV
1 stop10h 11m
Alaska Airlines
Tue 8/112:50 pm
ACV
- STL
1 stop7h 09m
Alaska Airlines
Deal found 7/9![Alaska Airlines logo]()
$609
This Expedia deal was found by Cheapflights users on 7/13. 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 9/56:35 am
STL
- ACV
1 stop10h 00m
Alaska Airlines
Sat 9/123:19 pm
ACV
- STL
1 stop21h 02m
Alaska Airlines
Deal found 7/13![Alaska Airlines logo]()
$614
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 13, 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 13, 2026.
This Alaska Airlines deal was found by Cheapflights users on 7/8. 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.
Wed 10/287:00 am
STL
- ACV
1 stop9h 35m
Alaska Airlines
Sat 10/313:12 pm
ACV
- STL
1 stop6h 47m
Alaska Airlines
Deal found 7/8![Alaska Airlines logo]()
$376
This United Airlines deal was found by Cheapflights users on 7/8. 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 10/289:40 am
STL
- ACV
2 stops12h 18m
United Airlines
Sat 10/312:13 pm
ACV
- STL
1 stop5h 57m
United Airlines
Deal found 7/8![United Airlines logo]()
$486
This Alaska Airlines deal was found by Cheapflights users on 7/10. 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 10/277:00 am
STL
- ACV
1 stop9h 35m
Alaska Airlines
Sat 10/313:12 pm
ACV
- STL
1 stop6h 47m
Alaska Airlines
Deal found 7/10![Alaska Airlines logo]()
$376
This United Airlines deal was found by Cheapflights users on 7/10. 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 8/45:10 am
STL
- ACV
2 stops11h 38m
United Airlines
Thu 8/67:40 am
ACV
- STL
1 stop8h 37m
United Airlines
Deal found 7/10![United Airlines logo]()
$491
This Orbitz deal was found by Cheapflights users on 7/10. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/47:56 pm
STL
- ACV
1 stop20h 17m
Alaska Airlines
Thu 8/62:50 pm
ACV
- STL
1 stop7h 09m
Alaska Airlines
Deal found 7/10![Alaska Airlines logo]()
$559
This United Airlines deal was found by Cheapflights users on 7/11. 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 10/155:10 am
STL
- ACV
2 stops9h 15m
United Airlines
Sun 10/187:45 am
ACV
- STL
1 stop8h 58m
United Airlines
Deal found 7/11![United Airlines logo]()
$590
This United Airlines deal was found by Cheapflights users on 7/11. 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 10/271:39 pm
STL
- ACV
2 stops10h 29m
United Airlines
Sat 10/318:00 am
ACV
- STL
1 stop8h 03m
United Airlines
Deal found 7/11![United Airlines logo]()
$624
Last-minute flights from St. Louis to EurekaDiscover last-minute flight deals from St. Louis to Eureka. Data last updated July 13, 2026 and is based on user searches.
Discover last-minute flight deals from St. Louis to Eureka. Data last updated July 13, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 7/12. 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 8/27:23 pm
STL
- ACV
1 stop6h 36m
United Airlines
Thu 8/67:40 am
ACV
- STL
1 stop8h 37m
United Airlines
Deal found 7/12![United Airlines logo]()
$554
This United Airlines deal was found by Cheapflights users on 7/10. 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 8/45:10 am
STL
- ACV
2 stops11h 38m
United Airlines
Thu 8/67:40 am
ACV
- STL
1 stop8h 37m
United Airlines
Deal found 7/10![United Airlines logo]()
$491
This Orbitz deal was found by Cheapflights users on 7/10. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/47:56 pm
STL
- ACV
1 stop20h 17m
Alaska Airlines
Thu 8/62:50 pm
ACV
- STL
1 stop7h 09m
Alaska Airlines
Deal found 7/10![Alaska Airlines logo]()
$559
This Priceline deal was found by Cheapflights users on 7/9. 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.
Wed 8/56:02 am
STL
- ACV
1 stop10h 11m
Alaska Airlines
Tue 8/112:50 pm
ACV
- STL
1 stop7h 09m
Alaska Airlines
Deal found 7/9![Alaska Airlines logo]()
$609
This Alaska Airlines deal was found by Cheapflights users on 7/12. 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.
Fri 8/77:56 pm
STL
- ACV
1 stop20h 17m
Alaska Airlines
Mon 8/102:50 pm
ACV
- STL
2 stops23h 47m
Alaska Airlines
Deal found 7/12![Alaska Airlines logo]()
$651
This United Airlines deal was found by Cheapflights users on 7/12. 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 8/77:23 pm
STL
- ACV
1 stop6h 36m
United Airlines
Mon 8/107:40 am
ACV
- STL
1 stop8h 37m
United Airlines
Deal found 7/12![United Airlines logo]()
$704
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 13, 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 13, 2026.
This Kiwi.com deal was found by Cheapflights users on 7/9. 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 9/148:10 pm
STL
- ACV
2 stops42h 01m
Multiple Airlines
Deal found 7/9![Multiple Airlines logo]()
$158
This Travelocity deal was found by Cheapflights users on 7/9. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/147:36 pm
STL
- ACV
1 stop21h 06m
Alaska Airlines
Deal found 7/9![Alaska Airlines logo]()
$229
This United Airlines deal was found by Cheapflights users on 7/8. 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 8/55:10 am
STL
- ACV
2 stops8h 37m
United Airlines
Deal found 7/8![United Airlines logo]()
$246
This United Airlines deal was found by Cheapflights users on 7/13. 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 9/59:00 am
STL
- ACV
1 stop6h 27m
United Airlines
Deal found 7/13![United Airlines logo]()
$260
This Alaska Airlines deal was found by Cheapflights users on 7/12. 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.
Wed 8/56:02 am
STL
- ACV
1 stop10h 11m
Alaska Airlines
Deal found 7/12![Alaska Airlines logo]()
$280
This Kiwi.com deal was found by Cheapflights users on 7/13. 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.
Sat 9/511:13 am
STL
- ACV
3 stops29h 22m
Multiple Airlines
Deal found 7/13![Multiple Airlines logo]()
$715
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 13, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $491 (United Airlines) |
One-way from | $158 (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 13, 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
Quickest round-trip
St. LouisArcata
STL - ACV
STLACV
Lambert-St Louis
Wed 10/28
7:00 am-2:35 pm
1 stop9h 35m
Arcata Eureka
Sat 10/31
3:12 pm-11:59 pm
1 stop6h 47m
$376
St. LouisArcata
STL - ACV
STLACV
Lambert-St Louis
Tue 10/27
7:00 am-2:35 pm
1 stop9h 35m
Arcata Eureka
Sat 10/31
3:12 pm-11:59 pm
1 stop6h 47m
$376
St. LouisArcata
STL - ACV
STLACV
Lambert-St Louis
Wed 10/28
9:40 am-7:58 pm
2 stops12h 18m
Arcata Eureka
Sat 10/31
2:13 pm-10:10 pm
1 stop5h 57m
$486
St. LouisArcata
STL - ACV
STLACV
Lambert-St Louis
Tue 8/4
5:10 am-2:48 pm
2 stops11h 38m
Arcata Eureka
Thu 8/6
7:40 am-6:17 pm
1 stop8h 37m
$491
St. LouisArcata
STL - ACV
STLACV
Lambert-St Louis
Tue 8/4
7:56 pm-2:13 pm
1 stop20h 17m
Arcata Eureka
Thu 8/6
2:50 pm-11:59 pm
1 stop7h 09m
$559
St. LouisArcata
STL - ACV
STLACV
Lambert-St Louis
Thu 10/15
5:10 am-12:25 pm
2 stops9h 15m
Arcata Eureka
Sun 10/18
7:45 am-6:43 pm
1 stop8h 58m
$590
St. LouisArcata
STL - ACV
STLACV
Lambert-St Louis
Tue 10/27
1:39 pm-10:08 pm
2 stops10h 29m
Arcata Eureka
Sat 10/31
8:00 am-6:03 pm
1 stop8h 03m
$624
Cheapest one-way
St. LouisArcata
STL - ACV
STLACV
Lambert-St Louis
Mon 9/14
7:36 pm-2:42 pm
1 stop21h 06m
$229
St. LouisArcata
STL - ACV
STLACV
Lambert-St Louis
Wed 8/5
5:10 am-11:47 am
2 stops8h 37m
$246
Quickest one-way
St. LouisArcata
STL - ACV
STLACV
Lambert-St Louis
Sat 9/5
9:00 am-1:27 pm
1 stop6h 27m
$260
Showing 1-10 of 12 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 13, 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
Overall
7.4
Entertainment
7.1
Food
6.7
Boarding
7.7
Comfort
7.3
Reviews
1 / 20
4.0
OkaySimon,Jun 2024
LAS - LAX
Crew
8.1
Overall
7.4
Entertainment
7.1
Food
6.7
Boarding
7.7
Comfort
7.3
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 13, 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 13, 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 13, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$329 | Average$618 | FlexibilityNo cancel fee | On-time69% |