HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
St. Louis

$172+ 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 12/11. Fares are subject to change and may not be available on all flights or dates of travel.
EUG — STL
Dec 6 — Dec 131
Sat 12/6
Sat 12/13
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Eugene to St. Louis 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

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

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 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 November 6, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$234
(Delta)

One-way from

$172
(Delta)

Popular in

June

Cheapest in

October

Average price

$488
Provider with most accurate pricing for Eugene-Lambert-St Louis flight deals.
Search Deals
Provider most trusted by Cheapflights users for Eugene-Lambert-St Louis flights.
Search Deals
From Eugene to Lambert-St Louis
Search Deals
One-way flight from Eugene to Lambert-St Louis
Search Deals
Highest demand for flights based on searches. 8% potential increase in price ($42 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($11 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
Search Deals

Find 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 November 6, 2025.

This Delta deal was found by Cheapflights users on 11/6. 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 12/97:00 amEUG - STL
2 stops10h 10mDelta
Tue 12/166:00 amSTL - EUG
2 stops11h 49mDelta
Deal found 11/6$234
This Kiwi.com deal was found by Cheapflights users on 11/5. 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.
Thu 11/207:52 pmEUG - STL
1 stop13h 24mMultiple Airlines
Mon 11/249:54 pmSTL - EUG
1 stop17h 20mMultiple Airlines
Deal found 11/5$303
This American Airlines deal was found by Cheapflights users on 11/6. 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 12/95:30 amEUG - STL
1 stop6h 21mAmerican Airlines
Tue 12/162:37 pmSTL - EUG
1 stop7h 06mAmerican Airlines
Deal found 11/6$322
This Delta deal was found by Cheapflights users on 11/5. 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 11/2011:24 amEUG - STL
2 stops9h 59mDelta
Mon 11/242:36 pmSTL - EUG
2 stops11h 19mDelta
Deal found 11/5$459
This Kiwi.com deal was found by Cheapflights users on 11/5. 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.
Sun 12/218:56 pmEUG - STL
1 stop22h 29mMultiple Airlines
Sat 12/2710:10 pmSTL - EUG
1 stop17h 20mMultiple Airlines
Deal found 11/5$530
This Kiwi.com deal was found by Cheapflights users on 11/5. 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.
Sun 12/218:56 pmEUG - STL
1 stop22h 29mMultiple Airlines
Fri 12/2610:10 pmSTL - EUG
2 stops47h 15mMultiple Airlines
Deal found 11/5$610
This Alaska Airlines deal was found by Cheapflights users on 11/5. 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.
Sun 12/215:56 amEUG - STL
1 stop16h 03mAlaska Airlines
Sun 12/287:00 amSTL - EUG
1 stop19h 22mAlaska Airlines
Deal found 11/5$621
This Kiwi.com deal was found by Cheapflights users on 11/5. 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.
Sun 12/218:56 pmEUG - STL
1 stop22h 29mMultiple Airlines
Sun 12/2810:10 pmSTL - EUG
2 stops48h 54mMultiple Airlines
Deal found 11/5$638
This Alaska Airlines deal was found by Cheapflights users on 11/5. 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.
Sun 12/215:56 amEUG - STL
1 stop16h 03mAlaska Airlines
Fri 12/267:00 amSTL - EUG
1 stop19h 22mAlaska Airlines
Deal found 11/5$652

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 November 6, 2025.
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 12/9

7:00 am-7:10 pm

2 stops10h 10m

Lambert-St Louis

Tue 12/16

6:00 am-3:49 pm

2 stops11h 49m

$234

EugeneSt. Louis

EUG - STL

EUGSTL

Eugene

Tue 3/3

1:25 pm-11:56 pm

1 stop8h 31m

Lambert-St Louis

Wed 3/4

7:00 am-12:37 pm

1 stop7h 37m

$263

EugeneSt. Louis

EUG - STL

EUGSTL

Eugene

Tue 3/3

1:25 pm-11:56 pm

1 stop8h 31m

Lambert-St Louis

Wed 3/4

7:00 am-3:13 pm

2 stops10h 13m

$278

EugeneSt. Louis

EUG - STL

EUGSTL

Eugene

Thu 11/20

7:52 pm-11:16 am

1 stop13h 24m

Lambert-St Louis

Mon 11/24

9:54 pm-1:14 pm

1 stop17h 20m

$303

EugeneSt. Louis

EUG - STL

EUGSTL

Eugene

Tue 3/3

6:00 am-12:24 am

2 stops16h 24m

Lambert-St Louis

Wed 3/4

7:00 am-4:37 pm

2 stops11h 37m

$305

EugeneSt. Louis

EUG - STL

EUGSTL

Eugene

Tue 12/9

5:30 am-1:51 pm

1 stop6h 21m

Lambert-St Louis

Tue 12/16

2:37 pm-7:43 pm

1 stop7h 06m

$322

EugeneSt. Louis

EUG - STL

EUGSTL

Eugene

Tue 3/3

6:00 am-10:14 pm

3 stops14h 14m

Lambert-St Louis

Wed 3/4

9:55 am-9:01 pm

2 stops13h 06m

$448

EugeneSt. Louis

EUG - STL

EUGSTL

Eugene

Thu 12/11

5:30 am-1:30 pm

1 stop6h 00m

$172

EugeneSt. Louis

EUG - STL

EUGSTL

Eugene

Mon 12/1

8:06 pm-10:33 pm

3 stops48h 27m

$183

EugeneSt. Louis

EUG - STL

EUGSTL

Eugene

Sat 12/13

5:30 am-1:30 pm

1 stop6h 00m

$198

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/5

Showing 1-10 of 12 results
1
2

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 November.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice 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 Eugene-St. Louis flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Eugene-St. Louis flight deals on Cheapflights vs. eDreams >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 eDreams the most. eDreams 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 February is currently the most expensive (average of $429). 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 Eugene to St. Louis?

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 November 6, 2025.
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.
Alaska Airlines
8.0
Very good
11,247 reviews

Crew

8.5

Food

7.1

Entertainment

7.0

Boarding

8.1

Comfort

7.8

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

BOS - HNL

The flight was awesome but a little long. I would prefer a flight with a layover. The amount of space available was minimal and a little uncomfortable for that long of a flight.
Alaska Airlines
8.0
Very good
11,247 reviews
Alaska Airlines
8.0
Very good
11,247 reviews

Crew

8.5

Food

7.1

Entertainment

7.0

Boarding

8.1

Comfort

7.8

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

BOS - HNL

The flight was awesome but a little long. I would prefer a flight with a layover. The amount of space available was minimal and a little uncomfortable for that long of a flight.
Southwest
8.0
Very good
4,241 reviews
Alaska Airlines
8.0
Very good
11,247 reviews

Crew

8.5

Food

7.1

Entertainment

7.0

Boarding

8.1

Comfort

7.8

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

BOS - HNL

The flight was awesome but a little long. I would prefer a flight with a layover. The amount of space available was minimal and a little uncomfortable for that long of a flight.
Delta
7.9
Good
8,001 reviews
Alaska Airlines
8.0
Very good
11,247 reviews

Crew

8.5

Food

7.1

Entertainment

7.0

Boarding

8.1

Comfort

7.8

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

BOS - HNL

The flight was awesome but a little long. I would prefer a flight with a layover. The amount of space available was minimal and a little uncomfortable for that long of a flight.
United Airlines
7.4
Good
9,007 reviews
Alaska Airlines
8.0
Very good
11,247 reviews

Crew

8.5

Food

7.1

Entertainment

7.0

Boarding

8.1

Comfort

7.8

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

BOS - HNL

The flight was awesome but a little long. I would prefer a flight with a layover. The amount of space available was minimal and a little uncomfortable for that long of a flight.
American Airlines
7.2
Good
11,040 reviews
Alaska Airlines
8.0
Very good
11,247 reviews

Crew

8.5

Food

7.1

Entertainment

7.0

Boarding

8.1

Comfort

7.8

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

BOS - HNL

The flight was awesome but a little long. I would prefer a flight with a layover. The amount of space available was minimal and a little uncomfortable for that long of a 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 $263, Delta can have you in St. Louis from Eugene in 8h 31m. 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 ($315), Alaska Airlines ($332), and Southwest ($336) offers the cheapest pricing from Eugene to St. Louis. These flights start at 30% 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 February is currently the most expensive (average of $429). 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
Fairview Heights
Maryland Heights
Collinsville
Eureka
Glencoe
St. Peters
Chesterfield
Alton
Farmington
Festus

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top 5 airlines flying from Eugene to St. Louis

Discover the top 5 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 November 6, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$315Average$372FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$332Average$408FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$336Average$426FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$338Average$470FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$398Average$466FlexibilityNo cancel feeOn-time71%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.