$124+ Cheap flights from St. Louis to Eugene (STL - EUG)
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 10/13. Fares are subject to change and may not be available on all flights or dates of travel.
STL — EUG
Sep 16 — Sep 231
Round-trip
1 adult, Economy
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Find cheap flights from St. Louis to Eugene 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
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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 Eugene
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Cheapest flights from St. Louis to EugeneExplore the most affordable flight options available from St. Louis to Eugene. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 17, 2026.
Explore the most affordable flight options available from St. Louis to Eugene. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 17, 2026.
This Delta deal was found by Cheapflights users on 8/12. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/77:00 pm -
1 stop6h 49m
Tue 10/134:41 pm -
1 stop6h 03m
Deal found 8/12![Delta logo]()
$247
This Delta deal was found by Cheapflights users on 8/12. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/282:38 pm -
2 stops11h 11m
Sat 11/71:36 pm -
1 stop5h 33m
Deal found 8/12![Delta logo]()
$252
This Delta deal was found by Cheapflights users on 8/13. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/236:55 pm -
1 stop6h 52m
Mon 9/284:45 pm -
1 stop5h 59m
Deal found 8/13![Delta logo]()
$257
This United Airlines deal was found by Cheapflights users on 8/13. 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.
Thu 9/108:00 am -
1 stop7h 10m
Thu 9/172:19 pm -
1 stop6h 40m
Deal found 8/13![United Airlines logo]()
$267
This Delta deal was found by Cheapflights users on 8/12. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/202:22 pm -
2 stops11h 37m
Mon 10/264:41 pm -
1 stop6h 03m
Deal found 8/12![Delta logo]()
$268
This Delta deal was found by Cheapflights users on 8/12. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/282:38 pm -
2 stops11h 11m
Tue 11/105:50 am -
2 stops9h 10m
Deal found 8/12![Delta logo]()
$273
This Delta deal was found by Cheapflights users on 8/12. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/115:00 pm -
1 stop8h 47m
Wed 9/164:45 pm -
1 stop5h 59m
Deal found 8/12![Delta logo]()
$280
This Delta deal was found by Cheapflights users on 8/11. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/106:15 am -
2 stops8h 43m
Mon 9/144:45 pm -
1 stop5h 59m
Deal found 8/11![Delta logo]()
$284
Best flights from St. Louis to EugeneDiscover carefully curated flight deals from St. Louis to Eugene that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 17, 2026.
Discover carefully curated flight deals from St. Louis to Eugene that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 17, 2026.
This Delta deal was found by Cheapflights users on 8/12. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/77:00 pm -
1 stop6h 49m
Tue 10/134:41 pm -
1 stop6h 03m
Deal found 8/12![Delta logo]()
$247
This United Airlines deal was found by Cheapflights users on 8/13. 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.
Thu 9/108:00 am -
1 stop7h 10m
Thu 9/172:19 pm -
1 stop6h 40m
Deal found 8/13![United Airlines logo]()
$267
This Southwest deal was found by Cheapflights users on 8/15. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/67:20 am -
1 stop7h 35m
Tue 10/205:50 am -
1 stop6h 10m
Deal found 8/15![Southwest logo]()
$379
This American Airlines deal was found by Cheapflights users on 8/16. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/78:03 am -
1 stop7h 11m
Tue 10/135:20 am -
1 stop6h 17m
Deal found 8/16![American Airlines logo]()
$379
This Delta deal was found by Cheapflights users on 8/13. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/236:55 pm -
1 stop6h 52m
Mon 9/284:45 pm -
1 stop5h 59m
Deal found 8/13![Delta logo]()
$257
This Delta deal was found by Cheapflights users on 8/13. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/115:00 pm -
1 stop8h 47m
Wed 9/164:45 pm -
1 stop5h 59m
Deal found 8/13![Delta logo]()
$280
This Delta deal was found by Cheapflights users on 8/12. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/302:22 pm -
2 stops11h 37m
Mon 11/95:41 pm -
2 stops13h 38m
Deal found 8/12![Delta logo]()
$351
This Delta deal was found by Cheapflights users on 8/12. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/307:00 pm -
1 stop6h 49m
Sun 11/84:41 pm -
1 stop6h 03m
Deal found 8/12![Delta logo]()
$373
This Delta deal was found by Cheapflights users on 8/16. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/207:45 am -
1 stop6h 08m
Tue 10/274:41 pm -
1 stop6h 03m
Deal found 8/16![Delta logo]()
$379
Last-minute flights from St. Louis to EugeneDiscover last-minute flight deals from St. Louis to Eugene. Data last updated August 17, 2026 and is based on user searches.
Discover last-minute flight deals from St. Louis to Eugene. Data last updated August 17, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 8/13. 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.
Fri 8/288:42 am -
1 stop8h 54m
Tue 9/112:47 pm -
1 stop5h 59m
Deal found 8/13![United Airlines logo]()
$340
This Southwest deal was found by Cheapflights users on 8/13. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/286:05 pm -
1 stop6h 35m
Tue 9/111:15 am -
2 stops9h 20m
Deal found 8/13![Southwest logo]()
$345
This American Airlines deal was found by Cheapflights users on 8/13. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/2810:16 am -
2 stops11h 53m
Tue 9/15:24 am -
2 stops10h 41m
Deal found 8/13![American Airlines logo]()
$350
This United Airlines deal was found by Cheapflights users on 8/13. 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.
Thu 9/108:00 am -
1 stop7h 10m
Thu 9/172:19 pm -
1 stop6h 40m
Deal found 8/13![United Airlines logo]()
$267
This Delta deal was found by Cheapflights users on 8/11. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/106:15 am -
2 stops8h 43m
Mon 9/144:45 pm -
1 stop5h 59m
Deal found 8/11![Delta logo]()
$284
This Delta deal was found by Cheapflights users on 8/12. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/115:00 pm -
1 stop8h 47m
Wed 9/164:45 pm -
1 stop5h 59m
Deal found 8/12![Delta logo]()
$280
This American Airlines deal was found by Cheapflights users on 8/13. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/1111:01 am -
2 stops10h 16m
Wed 9/166:47 am -
2 stops11h 57m
Deal found 8/13![American Airlines logo]()
$323
This Delta deal was found by Cheapflights users on 8/13. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/236:55 pm -
1 stop6h 52m
Mon 9/284:45 pm -
1 stop5h 59m
Deal found 8/13![Delta logo]()
$257
One-way flights from St. Louis to EugeneSearch for one-way flight options from St. Louis to Eugene. Find affordable one-way fares based on user searches. Data last updated August 17, 2026.
Search for one-way flight options from St. Louis to Eugene. Find affordable one-way fares based on user searches. Data last updated August 17, 2026.
This Southwest deal was found by Cheapflights users on 8/12. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/135:20 am -
1 stop9h 35m
Deal found 8/12![Southwest logo]()
$124
This United Airlines deal was found by Cheapflights users on 8/11. 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 9/108:00 am -
1 stop7h 10m
Deal found 8/11![United Airlines logo]()
$140
This Delta deal was found by Cheapflights users on 8/11. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/101:40 pm -
2 stops12h 07m
Deal found 8/11![Delta logo]()
$145
This Southwest deal was found by Cheapflights users on 8/14. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/146:05 pm -
1 stop6h 40m
Deal found 8/14![Southwest logo]()
$193
This Alaska Airlines deal was found by Cheapflights users on 8/12. 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.
Thu 9/37:36 pm -
1 stop6h 17m
Deal found 8/12![Alaska Airlines logo]()
$278
This Kiwi.com deal was found by Cheapflights users on 8/14. 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 9/1412:17 pm -
3 stops50h 37m
Deal found 8/14![Multiple Airlines logo]()
$380
This Kiwi.com deal was found by Cheapflights users on 8/12. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/138:10 pm -
3 stops49h 51m
Deal found 8/12![Multiple Airlines logo]()
$383
Find flight deals from St. Louis to Eugene
Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to Eugene (EUG). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated August 17, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $247 (Delta) |
One-way from | $124 (Southwest) |
Popular in | March |
Cheapest in | December |
Average price | $399 |
Cheapflights Fare Finder
Customize your flight search to find flights from St. Louis to Eugene 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 August 17, 2026.
Use the filters below to find and compare flights from St. Louis to Eugene that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
St. LouisEugene
STL Lambert-St Louis - EUG Eugene
STLEUG
Lambert-St Louis
Wed 10/7
7:00 pm-11:49 pm
1 stop6h 49m
Eugene
Tue 10/13
4:41 pm-12:44 am
1 stop6h 03m
$247
St. LouisEugene
STL Lambert-St Louis - EUG Eugene
STLEUG
Lambert-St Louis
Wed 9/23
6:55 pm-11:47 pm
1 stop6h 52m
Eugene
Mon 9/28
4:45 pm-12:44 am
1 stop5h 59m
$257
St. LouisEugene
STL Lambert-St Louis - EUG Eugene
STLEUG
Lambert-St Louis
Thu 9/10
8:00 am-1:10 pm
1 stop7h 10m
Eugene
Thu 9/17
2:19 pm-10:59 pm
1 stop6h 40m
$267
St. LouisEugene
STL Lambert-St Louis - EUG Eugene
STLEUG
Lambert-St Louis
Fri 9/11
5:00 pm-11:47 pm
1 stop8h 47m
Eugene
Wed 9/16
4:45 pm-12:44 am
1 stop5h 59m
$280
St. LouisEugene
STL Lambert-St Louis - EUG Eugene
STLEUG
Lambert-St Louis
Fri 10/30
2:22 pm-11:59 pm
2 stops11h 37m
Eugene
Mon 11/9
5:41 pm-9:19 am
2 stops13h 38m
$351
St. LouisEugene
STL Lambert-St Louis - EUG Eugene
STLEUG
Lambert-St Louis
Fri 10/30
7:00 pm-11:49 pm
1 stop6h 49m
Eugene
Sun 11/8
4:41 pm-12:44 am
1 stop6h 03m
$373
St. LouisEugene
STL Lambert-St Louis - EUG Eugene
STLEUG
Lambert-St Louis
Tue 10/6
7:20 am-12:55 pm
1 stop7h 35m
Eugene
Tue 10/20
5:50 am-2:00 pm
1 stop6h 10m
$379
St. LouisEugene
STL Lambert-St Louis - EUG Eugene
STLEUG
Lambert-St Louis
Wed 10/7
8:03 am-1:14 pm
1 stop7h 11m
Eugene
Tue 10/13
5:20 am-1:37 pm
1 stop6h 17m
$379
Quickest round-trip
St. LouisEugene
STL Lambert-St Louis - EUG Eugene
STLEUG
Lambert-St Louis
Tue 10/20
7:45 am-11:53 am
1 stop6h 08m
Eugene
Tue 10/27
4:41 pm-12:44 am
1 stop6h 03m
$379
Cheapest one-way
St. LouisEugene
STL Lambert-St Louis - EUG Eugene
STLEUG
Lambert-St Louis
Tue 10/13
1:40 pm-10:15 pm
2 stops10h 35m
$129
Showing 1-10 of 14 resultsSorted by cheapest first
Compare providers for flights from St. Louis to Eugene
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from St. Louis to Eugene in August.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on St. Louis-Eugene flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on St. Louis-Eugene flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from St. Louis-Eugene flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on St. Louis-Eugene flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for St. Louis-Eugene flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from St. Louis to Eugene
Have a flexible travel schedule? Discover the best time to fly to Eugene from St. Louis with our price prediction graph.
STL-EUG
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 Eugene
What is the cheapest month to book a flight from St. Louis to Eugene?
Currently, December is the cheapest month in which you can book a flight from St. Louis to Eugene (average of $369). Flying from St. Louis to Eugene in March is currently the most expensive (average of $914). 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.
How much does it cost to fly round-trip from St. Louis to Eugene?
Airfare is below average for this route at the moment.
St. Louis to Eugene flights typically cost between $396 and $441 in October.The cheapest round-trip price found within the last 5 days was $247 on Delta (Oct 7-Oct 13).
Reviews of airlines servicing Eugene
Get insights into the airlines that provide service to Eugene. 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 Eugene. Reviews last updated August 17, 2026.
Get a feel of what it's like to fly with Southwest and United Airlines from St. Louis to Eugene by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Boarding
8.1
Comfort
8.0
Crew
8.6
Entertainment
7.5
Food
7.0
Overall
8.0
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Boarding
8.1
Comfort
8.0
Crew
8.6
Entertainment
7.5
Food
7.0
Overall
8.0
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Boarding
8.1
Comfort
8.0
Crew
8.6
Entertainment
7.5
Food
7.0
Overall
8.0
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Related info for your journey
Find useful and relevant information for your journey from St. Louis to Eugene. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Eugene?
Book flights to Eugene if you plan to visit one of these locationsNewport
Corvallis
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St. Louis and Eugene flights
Browse other St. Louis and Eugene flight options. Last updated on August 17, 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 August 17, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 2 airlines flying from St. Louis to Eugene
Discover the top 2 airlines that operate flights from St. Louis to Eugene. 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 August 17, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$336 | Average$570 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$348 | Average$494 | FlexibilityNo cancel fee | On-time63% |