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$130+ 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 8/28. Fares are subject to change and may not be available on all flights or dates of travel.
EUG — STL
jun 17 — jun 241
ter 6/17
ter 6/24
1 adult, Economy
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Cheapflights Tip: The best prices from Eugene to Lambert-St Louis are usually found in January or May, booked 63 days in advance, depart on a Tuesday or Monday and return on a Saturday

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 junho 12, 2025.

Round-trip from

$260
(Alaska Airlines)

One-way from

$130
(Alaska Airlines)

Popular in

June

Cheapest in

January

Average price

$566
From Eugene to Lambert-St Louis
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One-way flight from Eugene to Lambert-St Louis
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Highest demand for flights based on searches. 6% potential increase in price ($29 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($10 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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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 junho 12, 2025.

This Alaska Airlines deal was found by Cheapflights users on 6/12. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
qua 8/205:45 pmEUG - STL
1 stop18h 54mAlaska Airlines
dom 8/246:30 pmSTL - EUG
1 stop7h 29mAlaska Airlines
Deal found 6/12$260
This Delta deal was found by Cheapflights users on 6/12. 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.
qua 8/206:30 amEUG - STL
2 stops9h 46mDelta
dom 8/247:11 pmSTL - EUG
1 stop6h 33mDelta
Deal found 6/12$266
This American Airlines deal was found by Cheapflights users on 6/12. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
qui 8/146:00 amEUG - STL
1 stop9h 30mAmerican Airlines
dom 8/176:14 pmSTL - EUG
1 stop7h 18mAmerican Airlines
Deal found 6/12$279
This Hawaiian Airlines deal was found by Cheapflights users on 6/10. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ter 8/51:30 pmEUG - STL
1 stop8h 29mHawaiian Airlines
qua 8/67:32 pmSTL - EUG
1 stop6h 27mHawaiian Airlines
Deal found 6/10$345
This United Airlines deal was found by Cheapflights users on 6/12. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
qui 8/146:00 amEUG - STL
2 stops8h 31mUnited Airlines
dom 8/178:54 amSTL - EUG
1 stop6h 06mUnited Airlines
Deal found 6/12$378
This Southwest deal was found by Cheapflights users on 6/10. 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.
ter 8/56:50 amEUG - STL
1 stop8h 05mSouthwest
qui 8/72:05 pmSTL - EUG
2 stops10h 00mSouthwest
Deal found 6/10$382
This Mytrip deal was found by Cheapflights users on 6/12. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
qui 8/143:31 pmEUG - STL
3 stops20h 01mMultiple Airlines
dom 8/172:27 pmSTL - EUG
2 stops23h 08mMultiple Airlines
Deal found 6/12$449

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 junho 12, 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

qua 8/20

5:45 pm-2:39 pm

1 stop18h 54m

Lambert-St Louis

dom 8/24

6:30 pm-11:59 pm

1 stop7h 29m

$260

EugeneSt. Louis

EUG - STL

EUGSTL

Eugene

qua 8/20

6:30 am-6:16 pm

2 stops9h 46m

Lambert-St Louis

dom 8/24

7:11 pm-11:44 pm

1 stop6h 33m

$266

EugeneSt. Louis

EUG - STL

EUGSTL

Eugene

qui 8/14

6:00 am-5:30 pm

1 stop9h 30m

Lambert-St Louis

dom 8/17

6:14 pm-11:32 pm

1 stop7h 18m

$279

EugeneSt. Louis

EUG - STL

EUGSTL

Eugene

qui 8/14

6:00 am-4:31 pm

2 stops8h 31m

Lambert-St Louis

dom 8/17

8:54 am-1:00 pm

1 stop6h 06m

$378

EugeneSt. Louis

EUG - STL

EUGSTL

Eugene

ter 8/5

6:50 am-4:55 pm

1 stop8h 05m

Lambert-St Louis

qui 8/7

2:05 pm-10:05 pm

2 stops10h 00m

$382

EugeneSt. Louis

EUG - STL

EUGSTL

Eugene

qui 8/14

1:30 pm-11:59 pm

1 stop8h 29m

Lambert-St Louis

ter 8/19

7:32 pm-11:59 pm

1 stop6h 27m

$430

EugeneSt. Louis

EUG - STL

EUGSTL

Eugene

qui 8/14

3:31 pm-1:32 pm

3 stops20h 01m

Lambert-St Louis

dom 8/17

2:27 pm-11:35 am

2 stops23h 08m

$449

EugeneSt. Louis

EUG - STL

EUGSTL

Eugene

qui 8/28

1:35 pm-11:59 pm

1 stop8h 24m

$130

EugeneSt. Louis

EUG - STL

EUGSTL

Eugene

qua 8/6

6:50 am-10:15 pm

2 stops13h 25m

$170

EugeneSt. Louis

EUG - STL

EUGSTL

Eugene

qui 8/28

2:23 pm-4:45 pm

3 stops24h 22m

$249

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/10

Showing 1-10 of 11 results
1
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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

How far ahead should I book a flight from Eugene to St. Louis?

Use this chart to determine the optimal time to book a round-trip flight from Eugene to St. Louis. Price data was last updated on June 9, 2025.

The price you pay for your flight from Eugene to St. Louis may vary depending on when you book. For the best chance of a lower fare, look to book 62 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, August is the cheapest month in which you can book a flight from Eugene to St. Louis (average of $311). Flying from Eugene to St. Louis in March is currently the most expensive (average of $356). 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.

Rainfall in St. Louis by month

Plan your trip to St. Louis by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in St. Louis ranges from 2.2 - 4.7 inches per month. May is typically the wettest month, when rainfall can reach 4.7 in. February is typically the driest time to visit St. Louis when rainfall is around 2.2 in.

Temperature in St. Louis by month

Plan your trip to St. Louis by taking into account the average temperature totals by month.

If weather is an important factor for your trip to St. Louis, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 32.0 F).

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 junho 12, 2025.
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Comfort

7.8

Entertainment

7.1

Overall

8.0

Food

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Comfort

7.8

Entertainment

7.1

Overall

8.0

Food

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Southwest
8.0
Very good
4,287 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Comfort

7.8

Entertainment

7.1

Overall

8.0

Food

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Hawaiian Airlines
7.9
Good
2,494 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Comfort

7.8

Entertainment

7.1

Overall

8.0

Food

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,790 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Comfort

7.8

Entertainment

7.1

Overall

8.0

Food

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Comfort

7.8

Entertainment

7.1

Overall

8.0

Food

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

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.

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

    According to our current data, Alaska Airlines ($260), Hawaiian Airlines ($345), and Southwest ($382) offers the cheapest pricing from Eugene to St. Louis. These flights start at 43% lower than the current average price 3 months from now.

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

    $130 is the cheapest one-way deal found within the past few days, from Alaska Airlines. You may also be able to find cheap deals on Southwest and United Airlines, with prices starting from $170 and $384, respectively.

  • 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, August is the cheapest month in which you can book a flight from Eugene to St. Louis (average of $311). Flying from Eugene to St. Louis in March is currently the most expensive (average of $356). 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
O'Fallon
Maryland Heights
Fairview Heights
Collinsville
Eureka
St. Peters
Glencoe
Festus
Alton
Farmington

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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 junho 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$308Average$431FlexibilityNo cancel feeOn-time71%
DeltaCheapest$315Average$402FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$317Average$523FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$336Average$489FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$362Average$436FlexibilityNo cancel feeOn-time63%

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