STL - EUG

$162 Find Cheap Flights from St. Louis to Eugene - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from St. Louis to Eugene departing on 9/22. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$301
Typical prices: $167-$495
Alaska Airlines
Tue 10/20Tue 10/27
STL - EUG • 2 stops
Cheapest one-way
$162
Alaska Airlines
Tue 9/22
STL - EUG • 2 stops
Top airlines
Cheapest • from $301 (round-trip)
Best reviews • 8.0 score
Airline reviews
Airline reviews
+1
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Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between St. Louis and Eugene. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $448 (round-trip)
Shortest trip • 6h 11m (one-way)
Insights
Insights
Insights
Insights
When to travel
Cheapest • 31% price drop
Most popular
Good to know
Good to know
+1
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Good to know
Good to know
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We hope you love your trip to Eugene!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from St. Louis to Eugene (STL-EUG)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from St. Louis to Eugene that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from St. Louis to Eugene

Tue, Oct 20 - Tue, Oct 27
Alaska Airlines Logo
7:02 am - 9:47 pm
STL
-
EUG
16h 45m
2 stops
Alaska Airlines Logo
1:49 pm - 11:59 pm
EUG
-
STL
8h 10m
1 stop
$301Alaska Airlines
Tue, Oct 20 - Tue, Oct 27
Delta Logo
3:35 pm - 11:59 pm
STL
-
EUG
10h 24m
2 stops
Delta Logo
6:05 am - 5:44 pm
EUG
-
STL
9h 39m
2 stops
$313Delta
Wed, Sep 23 - Mon, Sep 28
Delta Logo
1:55 pm - 11:59 pm
STL
-
EUG
12h 04m
2 stops
Delta Logo
4:45 pm - 12:44 am
EUG
-
STL
5h 59m
1 stop
$331Delta
Wed, Nov 18 - Mon, Nov 23
Delta Logo
7:10 am - 5:01 pm
STL
-
EUG
11h 51m
2 stops
Delta Logo
1:40 pm - 12:30 am
EUG
-
STL
8h 50m
1 stop
$331Delta
Thu, Jan 21 - Mon, Jan 25
Southwest Logo
6:35 am - 10:40 am
STL
-
EUG
6h 05m
1 stop
Southwest Logo
7:05 am - 4:35 pm
EUG
-
STL
7h 30m
1 stop
$349Southwest
Tue, Aug 25 - Tue, Sep 1
Southwest Logo
5:35 am - 12:55 pm
STL
-
EUG
9h 20m
1 stop
Southwest Logo
6:40 am - 2:20 pm
EUG
-
STL
5h 40m
1 stop
$349Southwest
Wed, Jan 20 - Sat, Jan 23
United Airlines Logo
9:13 am - 1:08 pm
STL
-
EUG
5h 55m
1 stop
United Airlines Logo
5:00 am - 12:43 pm
EUG
-
STL
5h 43m
1 stop
$349United Airlines
Mon, Sep 21 - Mon, Sep 28
United Airlines Logo
8:00 am - 1:10 pm
STL
-
EUG
7h 10m
1 stop
United Airlines Logo
2:15 pm - 10:59 pm
EUG
-
STL
6h 44m
1 stop
$349United Airlines
Wed, Nov 18 - Mon, Nov 23
United Airlines Logo
6:00 am - 11:57 am
STL
-
EUG
7h 57m
1 stop
United Airlines Logo
2:27 pm - 11:15 pm
EUG
-
STL
6h 48m
1 stop
$349United Airlines
Mon, Aug 31 - Sat, Sep 5
Southwest Logo
5:55 am - 11:40 am
STL
-
EUG
7h 45m
1 stop
Southwest Logo
12:55 pm - 9:40 pm
EUG
-
STL
6h 45m
1 stop
$349Southwest
Booking Insights

KAYAK's insights & trends for St. Louis to Eugene flights

Get data-powered insights and trends into flights from St. Louis to Eugene to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from St. Louis to Eugene?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from St. Louis to Eugene departing in October.

Flight prices are below average for this route right now.

Flights to Eugene from St. Louis usually cost between $371 and $441 in October.
The lowest price found in the past 5 days was $301 on Alaska Airlines (Oct 20-Oct 27).

What is the cheapest month to fly from St. Louis to Eugene?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from St. Louis to Eugene, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from St. Louis to Eugene is December, where tickets cost $369 (return) on average. On the other hand, the most expensive months are March and June, where the average cost of round-trip tickets is $914 and $696 respectively.

Good to know

Low season

April

Cheapest flight

$162
Best time to beat the crowds but there is an average 21% increase in price.
Most popular time to fly and prices are also 4% lower on average.
Flight from St. Louis to Eugene

When to book flights from St. Louis to Eugene

Are your dates flexible? Find out the best times to travel from St. Louis to Eugene based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from St. Louis to Eugene

  • What is the cheapest flight from St. Louis to Eugene?

    In the last 5 days, the lowest price for a flight from St. Louis to Eugene was $162 for a one-way ticket and $301 for a round-trip.

  • Do I need a passport to fly between St. Louis and Eugene?

    Even though you are not required to have a passport, keep in mind that an official ID is needed to board the airplane.

  • Which aircraft models fly most regularly from St. Louis to Eugene?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from St. Louis to Eugene?

    Star Alliance is the only airline alliance operating flights between St. Louis and Eugene.

  • Which is the best airline for flights from St. Louis to Eugene, Southwest or United Airlines?

    The two airlines most popular with KAYAK users for flights from St. Louis to Eugene are Southwest and United Airlines. With an average price for the route of $492 and an overall rating of 8.0, Southwest is the most popular choice. United Airlines is also a great choice for the route, with an average price of $519 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from St. Louis to Eugene?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from St. Louis to Eugene.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from St. Louis to Eugene?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Eugene from St. Louis is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from St. Louis to Eugene?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Eugene with an airline and back to St. Louis with another airline. Booking your flights between St. Louis and EUG can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from St. Louis to Eugene?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Eugene from St. Louis up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airlines flying from St. Louis to Eugene

 
See real verified KAYAK customer reviews for airlines flying from St. Louis to Eugene. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from St. Louis to Eugene? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
SouthwestOverall score based on 4227 reviews
8.1Boarding
7.0Food
8.0Comfort
7.5Entertainment
8.6Crew
Airline reviews

Snacks are always pretzels. Why can't you also offer peanuts ?

6.0 GoodAnonymous, Mar 2026
STL - HOU
Read more Southwest reviews

Snacks are always pretzels. Why can't you also offer peanuts ?

Only downside was the legroom and seat width, which is always a problem unless I spend more for a premium seat.

Very good. Sad to learn Southwest is going start to charge for bags

Exceptional crew! Friendly and professional. Pleasant attitude and treated everyone with respect.

The flight was promptly on schedule and Southwest delivered everything they promised. No excuses for any shortfalls just 100% ownership of their responsibilities and business. The boarding and seating policy is a complete shambles. What started out as a great idea when Southwest first hit the market has been turned into a disaster due to the lack of integrity in many of the people who fly Southwest and take advantage of Southwest generosity at the expense of their fellow passengers.

Crew was excellent - Plane was fine. Media was good, could use more kid shows; Not a fan of the brownie brittle -- snack could be slightly better.

Left on time and arrived early. Brand new plane and no parts missing. Comfortable seats. The actual Captain spoke prior to the flight and reassured everyone about safety. Crew was so nice and fun. Perfect flight!

Everything went smoothly and the plane wasn’t full. It was delayed though. The delay was increased due to a crew change which was frustrating.

Love Southwest! Always a good trip with a happy crew who goes out of their way to be kind and fun.

friendly staff for the most part. they thought we were going to have bad turbulence so no drink service. there wasn't any turbulence. Iwish you had a choice of snacks

Our flight was great with an unexpected upgrade. However, four days into our travel we are still without a piece of luggage. The bag tracker has not been accurate, the airline is not communicating with me or the luggage delivery service and no one is willing to take responsibility or guarantee any kind of support or reimbursement. Unfortunately, we do not have the option to easily shop to replace items as we are currently on a cruise. I have been very disappointed by United Airlines response.

Had a one hour delay due to mechanical issue. I didn’t think I’d be able to make my connecting flight, but they waited for me and greeted me when I arrived to help things run smooth.

Staff were good. My seat was in need of repair, but for a short flight was not problematic. Usual basic snack and drink setup that you'll find on any US carrier. Over, a decent, basic flight.

HORRIBLE, my initial flight was cancelled, they made me pay $200 extra dollars and that got cancelled as well! After 6 cancellations I decided to get a refund because I needed to get home to my babies. Out of $1000+ dollars they offered me only $40 in refund! Totally unacceptable! The flight that they cancelled I was able to fly it on another airline. I had to spend $400 on one way tickets just to get home! I’m still getting the runaround.

Flight was delayed only slightly before takeoff due to traffic control. However, the flight arrived early to ORD. Good flight. United has been very reliable for me.

I will never book a flight through Cheap fare. They booked me from Portland Main . And would not give me a refund, so I bought 2 tickets one for 299. From Portland Main to ORD. Then I had to buy a ticket from Oregon PDX to ORD that was another 440. So Just so you know they even told me it was there fault but no refund. Bad bussniess. I did inform United but they said they couldn't help me due to the fact I booked through Cheap Tickets. Never again. And I'm spreding the word. I let everyone know at my 50th class reunion

Overall a very poor experience - booked premium economy tickets but due to last minute flight delays , all my itinery went for a toss and had to fly economy class with no access to lounge or any compensation by united airlines to make up for the flight delays . i had expected better experience than that from united.

Delays!!! Maintain your planes so your customers don’t have to sit on their assess for over an hour on the tarmac!! Also, United app is buggy. Videos did not load. Overall a miserable experience. Flight crew was awesome though.

Onboarding - it would be great to see on the screen what group they were boarding. It was very confusing on who was boarding (even though they called it out) they were not clear and the space to board was strange.

Older plane. Food was really bad, almost not worth the effort. Huge difference with European based airlines.

Everything you need to know for your flight from St. Louis to Eugene

Information on your arrival and departure airports