St. Louis

$139+ Cheap flights from Eugene to St. Louis (EUG - STL)

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 3/14. Fares are subject to change and may not be available on all flights or dates of travel.
EUG — STL
Mar 17 — Mar 241
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Cheap flight deals from Eugene to St. Louis

Cheapest flights from Eugene to St. Louis
Explore the most affordable flight options available from Eugene to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 15, 2026.

This Alaska Airlines deal was found by Cheapflights users on 2/11. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/111:07 pm
EUG
-
STL
1 stop8h 52m
Alaska Airlines
Tue 4/213:50 pm
STL
-
EUG
1 stop6h 41m
Alaska Airlines
Deal found 2/11$277
This Delta deal was found by Cheapflights users on 2/11. 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.
Sat 4/1111:40 am
EUG
-
STL
2 stops7h 51m
Delta
Sat 4/185:00 pm
STL
-
EUG
1 stop7h 35m
Delta
Deal found 2/11$282
This Delta deal was found by Cheapflights users on 2/11. 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.
Sat 4/1111:40 am
EUG
-
STL
2 stops7h 51m
Delta
Tue 4/212:20 pm
STL
-
EUG
2 stops10h 50m
Delta
Deal found 2/11$288
This Delta deal was found by Cheapflights users on 2/11. 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.
Wed 4/155:15 am
EUG
-
STL
1 stop6h 08m
Delta
Wed 4/156:45 pm
STL
-
EUG
2 stops17h 44m
Delta
Deal found 2/11$296
This Alaska Airlines deal was found by Cheapflights users on 2/11. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/137:17 pm
EUG
-
STL
1 stop26h 42m
Alaska Airlines
Sat 4/187:00 am
STL
-
EUG
1 stop7h 30m
Alaska Airlines
Deal found 2/11$300
This Delta deal was found by Cheapflights users on 2/12. 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.
Thu 3/511:25 am
EUG
-
STL
2 stops9h 58m
Delta
Wed 3/116:29 am
STL
-
EUG
2 stops12h 40m
Delta
Deal found 2/12$310
This Delta deal was found by Cheapflights users on 2/11. 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.
Mon 4/136:30 am
EUG
-
STL
2 stops15h 55m
Delta
Thu 4/166:45 pm
STL
-
EUG
2 stops17h 44m
Delta
Deal found 2/11$315
This Alaska Airlines deal was found by Cheapflights users on 2/11. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/137:17 pm
EUG
-
STL
1 stop26h 42m
Alaska Airlines
Wed 4/157:00 am
STL
-
EUG
1 stop18h 58m
Alaska Airlines
Deal found 2/11$323
This Alaska Airlines deal was found by Cheapflights users on 2/11. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/111:07 pm
EUG
-
STL
1 stop8h 52m
Alaska Airlines
Thu 4/167:00 am
STL
-
EUG
1 stop13h 40m
Alaska Airlines
Deal found 2/11$330
This Southwest deal was found by Cheapflights users on 2/13. 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.
Thu 5/142:50 pm
EUG
-
STL
1 stop7h 00m
Southwest
Tue 5/193:55 pm
STL
-
EUG
1 stop8h 05m
Southwest
Deal found 2/13$335
This Alaska Airlines deal was found by Cheapflights users on 2/13. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/144:03 pm
EUG
-
STL
2 stops23h 03m
Alaska Airlines
Tue 5/196:20 pm
STL
-
EUG
1 stop6h 30m
Alaska Airlines
Deal found 2/13$346

Find flight deals from Eugene to St. Louis

Discover tips and strategies to find the most affordable flight options for your journey from Eugene (EUG) to St. Louis (STL). 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 February 15, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$277
(Alaska Airlines)

One-way from

$139
(Delta)

Popular in

June

Cheapest in

January

Average price

$416
Provider with most accurate pricing for Eugene-Lambert-St Louis flight deals.
Provider most trusted by Cheapflights users for Eugene-Lambert-St Louis flights.
From Eugene to Lambert-St Louis
One-way flight from Eugene to Lambert-St Louis
Highest demand for flights based on searches. 15% potential increase in price ($74 potential increase over avg. RT price).
Cheapest flight prices on average. 3% potential price decrease ($14 potential savings vs. average RT price).
Average for round-trip flights in February 2026

Cheapflights Fare Finder

 
Customize your flight search to find flights from Eugene to St. Louis 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 February 15, 2026.
Use the filters below to find and compare flights from Eugene to St. Louis that are best for you.

Fly from

Eugene

Fly to

St. Louis

Route

Depart

Return

Price

EugeneSt. Louis

EUG - STL

EUGSTL

Eugene

Tue 4/14

1:07 pm-11:59 pm

1 stop8h 52m

Lambert-St Louis

Sat 4/18

7:00 am-12:30 pm

1 stop7h 30m

$277

EugeneSt. Louis

EUG - STL

EUGSTL

Eugene

Tue 4/14

5:15 am-1:23 pm

1 stop6h 08m

Lambert-St Louis

Wed 4/15

6:45 pm-11:47 pm

1 stop7h 02m

$277

EugeneSt. Louis

EUG - STL

EUGSTL

Eugene

Wed 4/15

1:07 pm-11:59 pm

1 stop8h 52m

Lambert-St Louis

Sat 4/18

7:00 am-12:30 pm

1 stop7h 30m

$277

EugeneSt. Louis

EUG - STL

EUGSTL

Eugene

Tue 4/14

6:51 pm-8:35 am

2 stops11h 44m

Lambert-St Louis

Sat 4/18

8:54 am-1:04 pm

1 stop6h 10m

$282

EugeneSt. Louis

EUG - STL

EUGSTL

Eugene

Sat 4/11

11:40 am-9:31 pm

2 stops7h 51m

Lambert-St Louis

Sat 4/18

5:00 pm-10:35 pm

1 stop7h 35m

$282

EugeneSt. Louis

EUG - STL

EUGSTL

Eugene

Sat 4/11

12:40 pm-9:31 pm

1 stop6h 51m

Lambert-St Louis

Thu 4/16

6:45 pm-10:29 am

2 stops17h 44m

$296

EugeneSt. Louis

EUG - STL

EUGSTL

Eugene

Wed 4/15

6:30 am-11:14 pm

2 stops14h 44m

Lambert-St Louis

Sat 4/18

5:00 pm-10:35 pm

1 stop7h 35m

$296

EugeneSt. Louis

EUG - STL

EUGSTL

Eugene

Tue 4/14

5:15 am-1:23 pm

1 stop6h 08m

Lambert-St Louis

Fri 4/17

6:45 pm-10:29 am

2 stops17h 44m

$296

EugeneSt. Louis

EUG - STL

EUGSTL

Eugene

Sat 4/11

11:40 am-9:31 pm

2 stops7h 51m

Lambert-St Louis

Mon 4/20

6:45 pm-10:29 am

2 stops17h 44m

$301

EugeneSt. Louis

EUG - STL

EUGSTL

Eugene

Mon 4/13

6:30 am-12:25 am

2 stops15h 55m

Lambert-St Louis

Wed 4/15

2:20 pm-11:10 pm

2 stops10h 50m

$301

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/12

Showing 1-10 of 21 results
1
2
3

Compare providers for flights from Eugene to St. Louis

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 Eugene to St. Louis in February.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust 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 Eugene-St. Louis flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Eugene-St. Louis flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Eugene-St. Louis flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Eugene-St. Louis 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 Eugene-St. Louis 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 Eugene to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis from Eugene 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 Eugene to St. Louis

What is the cheapest month to book a flight from Eugene to St. Louis?

Currently, September is the cheapest month in which you can book a flight from Eugene to St. Louis (average of $222). Flying from Eugene to St. Louis in June is currently the most expensive (average of $362). 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 St. Louis

Get insights into the airlines that provide service to St. Louis. 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 St. Louis. Reviews last updated February 15, 2026.
Read through reviews of airlines operating flights from Eugene to St. Louis, such as Alaska Airlines, Southwest, and Delta. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Crew

8.5

Comfort

7.8

Entertainment

7.0

Boarding

8.1

Overall

8.0

Food

7.1

Reviews

1 / 20
10.0
Excellent

robert,Feb 2026

LAS - SAN

The good customer service team made you fell welcome on the flight.

Crew

8.5

Comfort

7.8

Entertainment

7.0

Boarding

8.1

Overall

8.0

Food

7.1

Reviews

1 / 20
10.0
Excellent

robert,Feb 2026

LAS - SAN

The good customer service team made you fell welcome on the flight.

Crew

8.5

Comfort

7.8

Entertainment

7.0

Boarding

8.1

Overall

8.0

Food

7.1

Reviews

1 / 20
10.0
Excellent

robert,Feb 2026

LAS - SAN

The good customer service team made you fell welcome on the flight.

Crew

8.5

Comfort

7.8

Entertainment

7.0

Boarding

8.1

Overall

8.0

Food

7.1

Reviews

1 / 20
10.0
Excellent

robert,Feb 2026

LAS - SAN

The good customer service team made you fell welcome on the flight.

Crew

8.5

Comfort

7.8

Entertainment

7.0

Boarding

8.1

Overall

8.0

Food

7.1

Reviews

1 / 20
10.0
Excellent

robert,Feb 2026

LAS - SAN

The good customer service team made you fell welcome on the flight.

Related info for your journey

Find useful and relevant information for your journey from Eugene to St. Louis. 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 Eugene to St. Louis?

    For as low as $277, Alaska Airlines can have you in St. Louis from Eugene in 6h 08m. There are 1728 mi between Eugene and St. Louis. This flight may include one or multiple stops.

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

    According to our current data, Delta ($246), Alaska Airlines ($332), and United Airlines ($336) offers the cheapest pricing from Eugene to St. Louis. These flights start at 40% lower than the current average price 3 months from now.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Eugene to St. Louis 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 Eugene to St. Louis?

    Currently, September is the cheapest month in which you can book a flight from Eugene to St. Louis (average of $222). Flying from Eugene to St. Louis in June is currently the most expensive (average of $362). 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 St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
Edwardsville
O'Fallon
Swansea
Fairview Heights
Maryland Heights
Collinsville
Eureka
Glencoe
Chesterfield
Alton
Farmington
Festus

Browse thousands of different options on Cheapflights for your next trip

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Top 4 airlines flying from Eugene to St. Louis

Discover the top 4 airlines that operate flights from Eugene to St. Louis. 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 February 15, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$246Average$369FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$332Average$416FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$336Average$477FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$362Average$446FlexibilityNo cancel feeOn-time63%

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