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Eugene

$131+ 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 9/22. Fares are subject to change and may not be available on all flights or dates of travel.
STL — EUG
Aug 10 — Aug 171
Mon 8/10
Mon 8/17
1 adult, Economy
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Cheap flight deals from St. Louis to Eugene

Cheapest flights from St. Louis to Eugene
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 July 11, 2026.

This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/238:00 am
STL
-
EUG
1 stop5h 52m
Delta
Mon 9/284:45 pm
EUG
-
STL
1 stop5h 59m
Delta
Deal found 7/8$261
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/146:25 am
STL
-
EUG
1 stop6h 15m
Southwest
Sat 9/197:00 am
EUG
-
STL
2 stops7h 50m
Southwest
Deal found 7/9$267
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/115:00 pm
STL
-
EUG
1 stop8h 47m
Delta
Wed 9/164:45 pm
EUG
-
STL
1 stop5h 59m
Delta
Deal found 7/8$296
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/146:55 pm
STL
-
EUG
1 stop6h 52m
Delta
Sat 9/195:20 am
EUG
-
STL
1 stop6h 10m
Delta
Deal found 7/9$307
This American Airlines deal was found by Cheapflights users on 7/7. 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.
Tue 10/208:00 am
STL
-
EUG
1 stop7h 14m
American Airlines
Tue 10/275:20 am
EUG
-
STL
1 stop6h 17m
American Airlines
Deal found 7/7$313
This United Airlines deal was found by Cheapflights users on 7/7. 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 9/47:25 am
STL
-
EUG
1 stop7h 45m
United Airlines
Mon 9/72:19 pm
EUG
-
STL
1 stop6h 42m
United Airlines
Deal found 7/7$330

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 July 11, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$261
(Delta)

One-way from

$131
(United Airlines)

Popular in

March

Cheapest in

December

Average price

$570
Provider with most accurate pricing for Lambert-St Louis-Eugene flight deals.
Search Deals
Provider most trusted by Cheapflights users for Lambert-St Louis-Eugene flights.
Search Deals
From Lambert-St Louis to Eugene
Search Deals
One-way flight from Lambert-St Louis to Eugene
Search Deals
Highest demand for flights based on searches. 21% potential increase in price ($149 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 7% potential price decrease ($35 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2026
Search Deals

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 July 11, 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

Price

Cheapest round-trip
Quickest round-trip

St. LouisEugene

STL - EUG

STLEUG

Lambert-St Louis

Wed 9/23

8:00 am-11:52 am

1 stop5h 52m

Eugene

Mon 9/28

4:45 pm-12:44 am

1 stop5h 59m

$261

St. LouisEugene

STL - EUG

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

$296

St. LouisEugene

STL - EUG

STLEUG

Lambert-St Louis

Mon 9/14

6:55 pm-11:47 pm

1 stop6h 52m

Eugene

Sat 9/19

5:20 am-1:30 pm

1 stop6h 10m

$307

St. LouisEugene

STL - EUG

STLEUG

Lambert-St Louis

Thu 9/17

6:55 pm-11:47 pm

1 stop6h 52m

Eugene

Sun 9/20

4:45 pm-12:44 am

1 stop5h 59m

$374

St. LouisEugene

STL - EUG

STLEUG

Lambert-St Louis

Fri 8/7

8:08 pm-11:16 am

2 stops41h 08m

Eugene

Sun 8/16

5:55 pm-6:15 pm

1 stop22h 20m

$401

St. LouisEugene

STL - EUG

STLEUG

Lambert-St Louis

Fri 8/7

6:00 am-11:37 am

1 stop7h 37m

Eugene

Sun 8/16

2:19 pm-10:59 pm

1 stop6h 40m

$409

St. LouisEugene

STL - EUG

STLEUG

Lambert-St Louis

Fri 9/11

6:29 am-1:44 pm

1 stop9h 15m

Eugene

Wed 9/16

5:25 am-5:10 pm

1 stop9h 45m

$426
Cheapest one-way

St. LouisEugene

STL - EUG

STLEUG

Lambert-St Louis

Tue 9/22

4:40 pm-9:17 pm

1 stop6h 37m

$131

St. LouisEugene

STL - EUG

STLEUG

Lambert-St Louis

Tue 9/22

7:00 am-2:00 pm

2 stops9h 00m

$136

St. LouisEugene

STL - EUG

STLEUG

Lambert-St Louis

Mon 8/3

6:02 am-1:01 pm

1 stop8h 59m

$268

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/10

Showing 1-10 of 13 resultsSorted by cheapest first
1
2

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 July.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • 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.
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.

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 July 11, 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.
Southwest
7.9
Good
4,248 reviews

Comfort

8.0

Crew

8.6

Food

7.0

Entertainment

7.5

Boarding

8.1

Overall

7.9

Reviews

1 / 20
6.0
Good

Lauren,Dec 2024

MCI - DCA

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.
Southwest
7.9
Good
4,248 reviews
Southwest
7.9
Good
4,248 reviews

Comfort

8.0

Crew

8.6

Food

7.0

Entertainment

7.5

Boarding

8.1

Overall

7.9

Reviews

1 / 20
6.0
Good

Lauren,Dec 2024

MCI - DCA

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.
United Airlines
7.4
Good
9,977 reviews
Southwest
7.9
Good
4,248 reviews

Comfort

8.0

Crew

8.6

Food

7.0

Entertainment

7.5

Boarding

8.1

Overall

7.9

Reviews

1 / 20
6.0
Good

Lauren,Dec 2024

MCI - DCA

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

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.

  • How long is the flight from St. Louis to Eugene?

    Delta can get you from St. Louis to Eugene in just under 5h 52m. Your travel time can differ by up to . The distance from St. Louis to Eugene is about 1728 mi.

  • What are the cheapest airlines flying from St. Louis to Eugene round-trip?

    Flying on United Airlines is currently your cheapest option to Eugene, with prices starting at $332. Another option worth looking into is Southwest, starting at $348 round trip. Users have found that United Airlines is 37% cheaper than the other options available to this destination.

  • What are the cheapest airlines to fly from St. Louis to Eugene one-way?

    The cheapest airline one-way is United Airlines, with whom users have recently found tickets for as low as $163. However, be on the lookout for offers from Southwest and Delta, as they are both options that can get you from St. Louis to Eugene for a low price.

  • Can I find deals for flights from St. Louis to Eugene that include hotel bookings?

    Yes. In addition to deals on St. Louis to Eugene flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from St. Louis to Eugene?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from St. Louis to Eugene.

  • Can I find deals for business class flights from St. Louis to Eugene?

    Yes. Cheapflights offers flight deals from St. Louis to Eugene by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • 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.

See more FAQs

Traveling to a place near Eugene?

Book flights to Eugene if you plan to visit one of these locations
Newport
Corvallis

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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 July 11, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$332Average$519FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$348Average$483FlexibilityNo cancel feeOn-time63%

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