$166+ Cheap flights from St. Louis to Eugene (STL - EUG)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/28. Fares are subject to change and may not be available on all flights or dates of travel.
STL — EUG
Oct 25 — Nov 11
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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Best
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One-way
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 September 25, 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 September 25, 2026.
This Delta deal was found by Cheapflights users on 9/25. 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 9/25![Delta logo]()
$399
This Delta deal was found by Cheapflights users on 9/23. 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 10/72:25 pm -
2 stops11h 24m
Tue 10/134:41 pm -
1 stop6h 03m
Deal found 9/23![Delta logo]()
$404
This United Airlines deal was found by Cheapflights users on 9/21. 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.
Sat 11/216:00 am -
1 stop7h 57m
Fri 11/272:27 pm -
1 stop6h 57m
Deal found 9/21![United Airlines logo]()
$423
This Southwest deal was found by Cheapflights users on 9/22. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/54:50 pm -
2 stops8h 50m
Mon 11/910:55 am -
2 stops11h 40m
Deal found 9/22![Southwest logo]()
$433
This United Airlines deal was found by Cheapflights users on 9/24. 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 11/245:00 am -
1 stop8h 57m
Tue 12/17:10 am -
1 stop9h 01m
Deal found 9/24![United Airlines logo]()
$435
This Alaska Airlines deal was found by Cheapflights users on 9/24. 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 10/287:02 am -
1 stop8h 10m
Mon 11/26:38 pm -
1 stop17h 47m
Deal found 9/24![Alaska Airlines logo]()
$441
This Alaska Airlines deal was found by Cheapflights users on 9/21. 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 10/67:02 am -
1 stop8h 10m
Sat 10/101:49 pm -
1 stop8h 10m
Deal found 9/21![Alaska Airlines logo]()
$449
This Southwest deal was found by Cheapflights users on 9/24. 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.
Thu 11/267:45 am -
2 stops10h 30m
Tue 12/16:45 am -
1 stop8h 40m
Deal found 9/24![Southwest logo]()
$454
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 September 25, 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 September 25, 2026.
This Delta deal was found by Cheapflights users on 9/21. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/207:00 pm -
1 stop6h 49m
Tue 10/274:41 pm -
1 stop6h 03m
Deal found 9/21![Delta logo]()
$399
This Delta deal was found by Cheapflights users on 9/21. 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 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 9/21![Delta logo]()
$399
Last-minute flights from St. Louis to EugeneDiscover last-minute flight deals from St. Louis to Eugene. Data last updated September 25, 2026 and is based on user searches.
Discover last-minute flight deals from St. Louis to Eugene. Data last updated September 25, 2026 and is based on user searches.
This Alaska Airlines deal was found by Cheapflights users on 9/21. 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 10/67:02 am -
1 stop8h 10m
Sat 10/101:49 pm -
1 stop8h 10m
Deal found 9/21![Alaska Airlines logo]()
$449
This Delta deal was found by Cheapflights users on 9/23. 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 10/72:25 pm -
2 stops11h 24m
Tue 10/134:41 pm -
1 stop6h 03m
Deal found 9/23![Delta logo]()
$404
This Alaska Airlines deal was found by Cheapflights users on 9/25. 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 10/74:42 pm -
1 stop9h 15m
Tue 10/131:49 pm -
1 stop8h 10m
Deal found 9/25![Alaska Airlines logo]()
$493
This Delta deal was found by Cheapflights users on 9/25. 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 9/25![Delta logo]()
$399
This Alaska Airlines deal was found by Cheapflights users on 9/24. 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 10/287:02 am -
1 stop8h 10m
Mon 11/26:38 pm -
1 stop17h 47m
Deal found 9/24![Alaska Airlines logo]()
$441
This Delta deal was found by Cheapflights users on 9/22. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/317:45 am -
1 stop6h 08m
Sun 11/15:20 am -
1 stop6h 12m
Deal found 9/22![Delta logo]()
$458
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 September 25, 2026.
Search for one-way flight options from St. Louis to Eugene. Find affordable one-way fares based on user searches. Data last updated September 25, 2026.
This Kiwi.com deal was found by Cheapflights users on 9/20. 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.
Wed 10/284:18 pm -
2 stops23h 47m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/20![Multiple Airlines logo]()
$166
This Priceline deal was found by Cheapflights users on 9/20. 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 10/287:02 am -
1 stop8h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/20![Alaska Airlines logo]()
$200
This Southwest deal was found by Cheapflights users on 9/23. 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.
Wed 9/304:05 pm -
1 stop8h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/23![Southwest logo]()
$294
This Priceline deal was found by Cheapflights users on 9/23. 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.
Fri 10/23:19 pm -
1 stop7h 31m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/23![Alaska Airlines logo]()
$339
This Southwest deal was found by Cheapflights users on 9/25. 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 10/26:00 am -
2 stops11h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/25![Southwest logo]()
$344
This Kiwi.com deal was found by Cheapflights users on 9/23. 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 10/312:17 pm -
3 stops32h 46m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/23![Multiple Airlines logo]()
$410
This Kiwi.com deal was found by Cheapflights users on 9/23. 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.
Fri 10/25:19 pm -
3 stops51h 44m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/23![Multiple Airlines logo]()
$411
This Kiwi.com deal was found by Cheapflights users on 9/23. 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 10/612:17 pm -
3 stops57h 44m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/23![Multiple Airlines logo]()
$521
This Kiwi.com deal was found by Cheapflights users on 9/23. 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.
Wed 9/3012:17 pm -
3 stops33h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/23![Multiple Airlines logo]()
$538
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 September 25, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $399 (Delta) |
One-way from | $166 (Kiwi.com) |
Popular in | March |
Cheapest in | December |
Average price | $378 |
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 7,457,451 searches. Data last updated September 25, 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 10/28
4:18 pm-2:05 pm
2 stops23h 47m
Eugene
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$166
St. LouisEugene
STL Lambert-St Louis - EUG Eugene
STLEUG
Lambert-St Louis
Wed 10/28
7:02 am-1:12 pm
1 stop8h 10m
Eugene
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$200
St. LouisEugene
STL Lambert-St Louis - EUG Eugene
STLEUG
Lambert-St Louis
Wed 9/30
4:05 pm-10:35 pm
1 stop8h 30m
Eugene
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$294
St. LouisEugene
STL Lambert-St Louis - EUG Eugene
STLEUG
Lambert-St Louis
Mon 10/5
6:00 am-11:50 am
1 stop7h 50m
Eugene
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$339
Quickest round-trip
St. LouisEugene
STL Lambert-St Louis - EUG Eugene
STLEUG
Lambert-St Louis
Fri 10/2
3:19 pm-8:50 pm
1 stop7h 31m
Eugene
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$339
St. LouisEugene
STL Lambert-St Louis - EUG Eugene
STLEUG
Lambert-St Louis
Sun 10/4
6:15 am-5:11 pm
2 stops12h 56m
Eugene
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$344
St. LouisEugene
STL Lambert-St Louis - EUG Eugene
STLEUG
Lambert-St Louis
Fri 10/2
6:00 am-3:25 pm
2 stops11h 25m
Eugene
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$344
St. LouisEugene
STL Lambert-St Louis - EUG Eugene
STLEUG
Lambert-St Louis
Tue 10/20
7:00 pm-11:49 pm
1 stop6h 49m
Eugene
Tue 10/27
4:41 pm-12:44 am
1 stop6h 03m
$399
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
$399
St. LouisEugene
STL Lambert-St Louis - EUG Eugene
STLEUG
Lambert-St Louis
Sat 10/3
12:17 pm-7:03 pm
3 stops32h 46m
Eugene
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$410
Showing 1-10 of 11 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 September.
| 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 typical for this route at the moment.
St. Louis to Eugene flights typically cost between $363 and $493 in October.The cheapest round-trip price found within the last 5 days was $399 on Delta (Oct 20-Oct 27).
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 September 25, 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.
Comfort
8.0
Entertainment
7.5
Food
7.0
Crew
8.6
Boarding
8.1
Overall
8.0
Reviews
1 / 20
10.0
ExcellentEdward,Sep 2026
MCO - BWI
Comfort
8.0
Entertainment
7.5
Food
7.0
Crew
8.6
Boarding
8.1
Overall
8.0
Reviews
1 / 20
10.0
ExcellentEdward,Sep 2026
MCO - BWI
Comfort
8.0
Entertainment
7.5
Food
7.0
Crew
8.6
Boarding
8.1
Overall
8.0
Reviews
1 / 20
10.0
ExcellentEdward,Sep 2026
MCO - BWI
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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Other flights to Eugene
Explore flights to Eugene departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on September 25, 2026.
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St. Louis and Eugene flights
Browse other St. Louis and Eugene flight options. Last updated on September 25, 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 September 25, 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 7,457,451 searches. Data last updated September 25, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$336 | Average$566 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$371 | Average$510 | FlexibilityNo cancel fee | On-time63% |