St. Louis

$196+ 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 6/15. Fares are subject to change and may not be available on all flights or dates of travel.
EUG — STL
Apr 29 — May 61
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

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 March 30, 2026.

This Expedia deal was found by Cheapflights users on 3/28. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/251:23 pm
EUG
-
STL
1 stop8h 36m
Alaska Airlines
Sat 5/27:00 am
STL
-
EUG
1 stop7h 46m
Alaska Airlines
Deal found 3/28$317
This Southwest deal was found by Cheapflights users on 3/28. 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 4/256:00 am
EUG
-
STL
2 stops10h 10m
Southwest
Sat 5/27:00 am
STL
-
EUG
1 stop9h 55m
Southwest
Deal found 3/28$322
This Alaska Airlines deal was found by Cheapflights users on 3/26. 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 5/305:25 am
EUG
-
STL
1 stop9h 12m
Alaska Airlines
Sat 6/67:41 pm
STL
-
EUG
1 stop16h 00m
Alaska Airlines
Deal found 3/26$361
This United Airlines deal was found by Cheapflights users on 3/26. 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 5/51:07 pm
EUG
-
STL
1 stop6h 06m
United Airlines
Wed 5/62:35 pm
STL
-
EUG
1 stop8h 28m
United Airlines
Deal found 3/26$375
This Alaska Airlines deal was found by Cheapflights users on 3/29. 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 5/55:17 am
EUG
-
STL
2 stops16h 42m
Alaska Airlines
Wed 5/64:46 pm
STL
-
EUG
1 stop9h 13m
Alaska Airlines
Deal found 3/29$395
This Delta deal was found by Cheapflights users on 3/26. 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 5/305:10 am
EUG
-
STL
1 stop6h 22m
Delta
Sat 6/65:00 pm
STL
-
EUG
2 stops8h 48m
Delta
Deal found 3/26$401
This Delta deal was found by Cheapflights users on 3/25. 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.
Sat 5/235:10 am
EUG
-
STL
1 stop6h 22m
Delta
Sun 5/317:59 pm
STL
-
EUG
1 stop5h 44m
Delta
Deal found 3/25$415

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 March 30, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$317
(Expedia)

One-way from

$196
(Kiwi.com)

Popular in

June

Cheapest in

January

Average price

$446
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 ($73 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 March 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 March 30, 2026.
Use the filters below to find and compare flights from Eugene to St. Louis that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

EugeneSt. Louis

EUG - STL

EUGSTL

Eugene

Tue 5/5

12:52 pm-8:43 pm

1 stop5h 51m

Lambert-St Louis

Wed 5/6

2:35 pm-9:03 pm

1 stop8h 28m

$375

EugeneSt. Louis

EUG - STL

EUGSTL

Eugene

Tue 5/5

1:23 pm-11:59 pm

1 stop8h 36m

Lambert-St Louis

Wed 5/6

4:46 pm-9:54 pm

1 stop7h 08m

$402

EugeneSt. Louis

EUG - STL

EUGSTL

Eugene

Sat 5/30

5:10 am-1:32 pm

1 stop6h 22m

Lambert-St Louis

Sat 6/6

5:00 pm-11:48 pm

2 stops8h 48m

$420

EugeneSt. Louis

EUG - STL

EUGSTL

Eugene

Sat 5/23

5:10 am-5:16 pm

2 stops10h 06m

Lambert-St Louis

Sun 5/31

7:59 pm-11:43 pm

1 stop5h 44m

$420
Cheapest one-way
Quickest one-way

EugeneSt. Louis

EUG - STL

EUGSTL

Eugene

Thu 6/25

4:51 pm-12:39 am

1 stop5h 48m

$214

EugeneSt. Louis

EUG - STL

EUGSTL

Eugene

Thu 5/21

4:00 pm-4:37 pm

1 stop22h 37m

$219

EugeneSt. Louis

EUG - STL

EUGSTL

Eugene

Fri 6/26

4:51 pm-12:39 am

1 stop5h 48m

$240

EugeneSt. Louis

EUG - STL

EUGSTL

Eugene

Mon 6/22

4:51 pm-12:39 am

1 stop5h 48m

$240

EugeneSt. Louis

EUG - STL

EUGSTL

Eugene

Thu 8/13

6:00 am-1:55 pm

1 stop5h 55m

$243

EugeneSt. Louis

EUG - STL

EUGSTL

Eugene

Sun 6/7

7:59 pm-3:16 pm

1 stop17h 17m

$249

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/29

Showing 1-10 of 13 resultsSorted by cheapest first
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 March.
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 July is currently the most expensive (average of $369). 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 March 30, 2026.
Read through reviews of airlines operating flights from Eugene to St. Louis, such as Southwest,Alaska Airlines, andDelta. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Comfort

8.0

Food

7.0

Entertainment

7.5

Crew

8.6

Boarding

8.1

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.

Comfort

8.0

Food

7.0

Entertainment

7.5

Crew

8.6

Boarding

8.1

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.

Comfort

8.0

Food

7.0

Entertainment

7.5

Crew

8.6

Boarding

8.1

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.

Comfort

8.0

Food

7.0

Entertainment

7.5

Crew

8.6

Boarding

8.1

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.

Comfort

8.0

Food

7.0

Entertainment

7.5

Crew

8.6

Boarding

8.1

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.

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 $375, United Airlines can have you in St. Louis from Eugene in 5h 51m. There are 1728 mi between Eugene and St. Louis.

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

    According to our current data, Delta ($246), Southwest ($276), and Alaska Airlines ($329) 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 July is currently the most expensive (average of $369). 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
Fenton
Swansea
Fairview Heights
Maryland Heights
Collinsville
Eureka
Wentzville
Glencoe
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 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 March 30, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$246Average$369FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$276Average$446FlexibilityNo cancel feeOn-time63%
Alaska AirlinesCheapest$329Average$408FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$369Average$486FlexibilityNo cancel feeOn-time69%

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.