$185+ 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 10/28. Fares are subject to change and may not be available on all flights or dates of travel.
STL — EUG
Jul 21 — Jul 281
Round-trip
1 adult, Economy
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Find cheap flights from St. Louis to Eugene with Cheapflights
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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 June 21, 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 June 21, 2026.
This Delta deal was found by Cheapflights users on 6/21. 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 10/207:55 pm
STL
- EUG
1 stop5h 58m
Delta
Tue 10/274:40 pm
EUG
- STL
1 stop5h 56m
Delta
Deal found 6/21![Delta logo]()
$377
This Southwest deal was found by Cheapflights users on 6/16. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/176:40 pm
STL
- EUG
1 stop6h 00m
Southwest
Sat 9/1912:55 pm
EUG
- STL
1 stop6h 40m
Southwest
Deal found 6/16![Southwest logo]()
$397
This Delta deal was found by Cheapflights users on 6/17. 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 7/17:55 pm
STL
- EUG
1 stop6h 03m
Delta
Wed 7/84:43 pm
EUG
- STL
1 stop5h 58m
Delta
Deal found 6/17![Delta logo]()
$402
This Southwest deal was found by Cheapflights users on 6/16. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/96:30 am
STL
- EUG
2 stops8h 25m
Southwest
Fri 12/112:25 pm
EUG
- STL
1 stop6h 00m
Southwest
Deal found 6/16![Southwest logo]()
$403
This Alaska Airlines deal was found by Cheapflights users on 6/16. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/256:35 am
STL
- EUG
1 stop9h 02m
Alaska Airlines
Wed 8/266:05 am
EUG
- STL
1 stop6h 01m
Alaska Airlines
Deal found 6/16![Alaska Airlines logo]()
$407
This Delta deal was found by Cheapflights users on 6/16. 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.
Thu 9/178:00 am
STL
- EUG
1 stop5h 51m
Delta
Sun 9/201:38 pm
EUG
- STL
1 stop8h 56m
Delta
Deal found 6/16![Delta logo]()
$412
This Southwest deal was found by Cheapflights users on 6/17. 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 7/285:20 pm
STL
- EUG
1 stop7h 55m
Southwest
Tue 8/412:25 pm
EUG
- STL
2 stops8h 20m
Southwest
Deal found 6/17![Southwest logo]()
$413
This Southwest deal was found by Cheapflights users on 6/16. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/175:30 pm
STL
- EUG
1 stop7h 10m
Southwest
Sun 9/207:00 am
EUG
- STL
2 stops9h 10m
Southwest
Deal found 6/16![Southwest logo]()
$417
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 June 21, 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 June 21, 2026.
This Delta deal was found by Cheapflights users on 6/21. 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 10/207:55 pm
STL
- EUG
1 stop5h 58m
Delta
Tue 10/274:40 pm
EUG
- STL
1 stop5h 56m
Delta
Deal found 6/21![Delta logo]()
$377
This Southwest deal was found by Cheapflights users on 6/17. 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 7/285:20 pm
STL
- EUG
1 stop7h 55m
Southwest
Tue 8/412:25 pm
EUG
- STL
2 stops8h 20m
Southwest
Deal found 6/17![Southwest logo]()
$413
This Delta deal was found by Cheapflights users on 6/16. 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.
Thu 9/178:00 am
STL
- EUG
1 stop5h 51m
Delta
Sun 9/201:38 pm
EUG
- STL
1 stop8h 56m
Delta
Deal found 6/16![Delta logo]()
$412
This Southwest deal was found by Cheapflights users on 6/16. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/173:45 pm
STL
- EUG
2 stops8h 55m
Southwest
Sun 9/207:00 am
EUG
- STL
2 stops9h 10m
Southwest
Deal found 6/16![Southwest logo]()
$422
This Southwest deal was found by Cheapflights users on 6/16. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/148:25 am
STL
- EUG
1 stop8h 45m
Southwest
Fri 8/216:40 am
EUG
- STL
1 stop6h 35m
Southwest
Deal found 6/16![Southwest logo]()
$427
Last-minute flights from St. Louis to EugeneDiscover last-minute flight deals from St. Louis to Eugene. Data last updated June 21, 2026 and is based on user searches.
Discover last-minute flight deals from St. Louis to Eugene. Data last updated June 21, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 6/17. 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 7/17:55 pm
STL
- EUG
1 stop6h 03m
Delta
Wed 7/84:43 pm
EUG
- STL
1 stop5h 58m
Delta
Deal found 6/17![Delta logo]()
$402
This Southwest deal was found by Cheapflights users on 6/17. 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 7/13:05 pm
STL
- EUG
2 stops9h 10m
Southwest
Wed 7/81:40 pm
EUG
- STL
1 stop6h 15m
Southwest
Deal found 6/17![Southwest logo]()
$458
This American Airlines deal was found by Cheapflights users on 6/19. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/88:01 am
STL
- EUG
1 stop7h 05m
American Airlines
Sat 7/181:39 pm
EUG
- STL
1 stop8h 19m
American Airlines
Deal found 6/19![American Airlines logo]()
$467
This United Airlines deal was found by Cheapflights users on 6/17. 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 7/106:00 am
STL
- EUG
1 stop7h 37m
United Airlines
Thu 7/1612:50 pm
EUG
- STL
1 stop6h 36m
United Airlines
Deal found 6/17![United Airlines logo]()
$427
This Southwest deal was found by Cheapflights users on 6/16. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/135:35 am
STL
- EUG
1 stop6h 00m
Southwest
Sun 7/191:20 pm
EUG
- STL
2 stops9h 35m
Southwest
Deal found 6/16![Southwest logo]()
$472
This Southwest deal was found by Cheapflights users on 6/20. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/184:45 pm
STL
- EUG
1 stop8h 10m
Southwest
Fri 7/242:45 pm
EUG
- STL
1 stop7h 10m
Southwest
Deal found 6/20![Southwest logo]()
$432
This Delta deal was found by Cheapflights users on 6/17. 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 7/287:55 pm
STL
- EUG
1 stop6h 00m
Delta
Tue 8/44:43 pm
EUG
- STL
1 stop5h 58m
Delta
Deal found 6/17![Delta logo]()
$377
This Southwest deal was found by Cheapflights users on 6/17. 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 7/285:20 pm
STL
- EUG
1 stop7h 55m
Southwest
Tue 8/412:25 pm
EUG
- STL
2 stops8h 20m
Southwest
Deal found 6/17![Southwest logo]()
$413
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 June 21, 2026.
Search for one-way flight options from St. Louis to Eugene. Find affordable one-way fares based on user searches. Data last updated June 21, 2026.
This Kiwi.com deal was found by Cheapflights users on 6/16. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/285:32 pm
STL
- EUG
1 stop22h 33m
Multiple Airlines
Deal found 6/16![Multiple Airlines logo]()
$185
This Delta deal was found by Cheapflights users on 6/16. 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.
Wed 10/286:00 am
STL
- EUG
2 stops11h 58m
Delta
Deal found 6/16![Delta logo]()
$194
This Delta deal was found by Cheapflights users on 6/16. 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.
Thu 10/297:55 pm
STL
- EUG
1 stop5h 58m
Delta
Deal found 6/16![Delta logo]()
$199
This Southwest deal was found by Cheapflights users on 6/16. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/291:45 pm
STL
- EUG
2 stops10h 05m
Southwest
Deal found 6/16![Southwest logo]()
$204
This Alaska Airlines deal was found by Cheapflights users on 6/17. 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.
Mon 6/295:37 pm
STL
- EUG
1 stop6h 51m
Alaska Airlines
Deal found 6/17![Alaska Airlines logo]()
$214
This United Airlines deal was found by Cheapflights users on 6/17. 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 6/265:10 am
STL
- EUG
2 stops8h 51m
United Airlines
Deal found 6/17![United Airlines logo]()
$219
This Southwest deal was found by Cheapflights users on 6/17. 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 6/265:35 am
STL
- EUG
1 stop6h 00m
Southwest
Deal found 6/17![Southwest logo]()
$260
This Delta deal was found by Cheapflights users on 6/17. 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 6/262:28 pm
STL
- EUG
2 stops11h 23m
Delta
Deal found 6/17![Delta logo]()
$265
This Delta deal was found by Cheapflights users on 6/19. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/291:39 pm
STL
- EUG
2 stops12h 19m
Delta
Deal found 6/19![Delta logo]()
$319
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 June 21, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $377 (Delta) |
One-way from | $185 (Kiwi.com) |
Popular in | March |
Cheapest in | December |
Average price | $729 |
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 June 21, 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
Quickest round-trip
St. LouisEugene
STL - EUG
STLEUG
Lambert-St Louis
Tue 10/20
7:55 pm-11:53 pm
1 stop5h 58m
Eugene
Tue 10/27
4:40 pm-12:36 am
1 stop5h 56m
$377
St. LouisEugene
STL - EUG
STLEUG
Lambert-St Louis
Thu 9/17
8:00 am-11:51 am
1 stop5h 51m
Eugene
Sun 9/20
1:38 pm-12:34 am
1 stop8h 56m
$412
St. LouisEugene
STL - EUG
STLEUG
Lambert-St Louis
Tue 7/28
5:20 pm-11:15 pm
1 stop7h 55m
Eugene
Tue 8/4
12:25 pm-10:45 pm
2 stops8h 20m
$413
St. LouisEugene
STL - EUG
STLEUG
Lambert-St Louis
Thu 9/17
3:45 pm-10:40 pm
2 stops8h 55m
Eugene
Sun 9/20
7:00 am-6:10 pm
2 stops9h 10m
$422
St. LouisEugene
STL - EUG
STLEUG
Lambert-St Louis
Fri 8/14
8:25 am-3:10 pm
1 stop8h 45m
Eugene
Fri 8/21
6:40 am-3:15 pm
1 stop6h 35m
$427
Cheapest one-way
Quickest one-way
St. LouisEugene
STL - EUG
STLEUG
Lambert-St Louis
Thu 10/29
7:55 pm-11:53 pm
1 stop5h 58m
$199
St. LouisEugene
STL - EUG
STLEUG
Lambert-St Louis
Thu 10/29
1:45 pm-9:50 pm
2 stops10h 05m
$204
St. LouisEugene
STL - EUG
STLEUG
Lambert-St Louis
Fri 6/26
5:10 am-12:01 pm
2 stops8h 51m
$219
St. LouisEugene
STL - EUG
STLEUG
Lambert-St Louis
Fri 6/26
2:28 pm-11:51 pm
2 stops11h 23m
$265
St. LouisEugene
STL - EUG
STLEUG
Lambert-St Louis
Mon 6/29
5:37 pm-10:28 pm
1 stop6h 51m
$314
Showing 1-10 of 15 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 June.
| 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?
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 June 21, 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.
Crew
8.6
Entertainment
7.5
Comfort
8.0
Boarding
8.1
Overall
7.9
Food
7.0
Reviews
1 / 20
6.0
GoodReza,Jun 2026
TPA - MDW
Crew
8.6
Entertainment
7.5
Comfort
8.0
Boarding
8.1
Overall
7.9
Food
7.0
Reviews
1 / 20
6.0
GoodReza,Jun 2026
TPA - MDW
Crew
8.6
Entertainment
7.5
Comfort
8.0
Boarding
8.1
Overall
7.9
Food
7.0
Reviews
1 / 20
6.0
GoodReza,Jun 2026
TPA - MDW
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 June 21, 2026.
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St. Louis and Eugene flights
Browse other St. Louis and Eugene flight options. Last updated on June 21, 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 June 21, 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 June 21, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$332 | Average$538 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$371 | Average$495 | FlexibilityNo cancel fee | On-time63% |