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Cheap flights from St. Louis to Eugene from $127

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to Eugene departing on 12/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from St. Louis to Eugene

Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
3:32 pm - 11:02 pmSTL-EUG
9h 30m2 stops
Delta Logo
11:25 am - 11:25 pmEUG-STL
10h 00m2 stops
$254Delta
Find Deal
Sat, Jan 17 - Wed, Feb 18
Delta Logo
5:00 pm - 10:49 pmSTL-EUG
7h 49m1 stop
Delta Logo
11:25 am - 11:25 pmEUG-STL
10h 00m2 stops
$292Delta
Find Deal
Sat, Jan 17 - Wed, Feb 18
Alaska Airlines Logo
6:19 pm - 1:08 pmSTL-EUG
20h 49m1 stop
Alaska Airlines Logo
1:25 pm - 11:56 pmEUG-STL
8h 31m1 stop
$316Alaska Airlines
Find Deal
Sat, Jan 17 - Wed, Feb 18
Alaska Airlines Logo
7:00 am - 9:30 pmSTL-EUG
16h 30m1 stop
Alaska Airlines Logo
9:00 am - 11:59 pmEUG-STL
12h 59m1 stop
$332Alaska Airlines
Find Deal
Thu, Dec 4 - Thu, Dec 11
Multiple Airlines Logo
1:16 pm - 4:57 pmSTL-EUG
29h 41m2 stops
Multiple Airlines Logo
8:35 pm - 9:48 pmEUG-STL
23h 13m1 stop
$343Multiple Airlines
Find Deal
Thu, Dec 4 - Thu, Dec 11
Alaska Airlines Logo
7:00 am - 12:22 amSTL-EUG
19h 22m1 stop
Alaska Airlines Logo
5:56 am - 11:59 pmEUG-STL
16h 03m1 stop
$352Alaska Airlines
Find Deal
Fri, Dec 19 - Wed, Dec 31
Alaska Airlines Logo
7:00 am - 8:59 pmSTL-EUG
15h 59m1 stop
Alaska Airlines Logo
5:56 am - 4:26 pmEUG-STL
8h 30m1 stop
$366Alaska Airlines
Find Deal
Fri, Dec 19 - Thu, Jan 1
Multiple Airlines Logo
10:10 pm - 12:18 pmSTL-EUG
16h 08m1 stop
Multiple Airlines Logo
8:10 pm - 9:25 pmEUG-STL
23h 15m1 stop
$379Multiple Airlines
Find Deal
Mon, Dec 22 - Sun, Jan 4
Southwest Logo
11:00 am - 6:20 pmSTL-EUG
9h 20m2 stops
Southwest Logo
12:55 pm - 1:00 amEUG-STL
10h 05m1 stop
$478Southwest
Find Deal
Sun, Dec 21 - Fri, Jan 2
American Airlines Logo
7:00 am - 2:03 pmSTL-EUG
9h 03m1 stop
American Airlines Logo
5:30 am - 1:40 pmEUG-STL
6h 10m1 stop
$556American Airlines
Find Deal
Thu, Nov 20 - Mon, Nov 24

Delta flights from St. Louis to Eugene

Our best Delta deals on St. Louis to Eugene flight tickets
Delta
Jan 17
STL3:32 pmLambert-St Louis
9h 30m
2 stops
EUG11:02 pmEugene
Feb 18
EUG11:25 amEugene
10h 00m
2 stops
STL11:25 pmLambert-St Louis
$254
Find similar
Delta
Jan 17
STL5:00 pmLambert-St Louis
7h 49m
1 stop
EUG10:49 pmEugene
Feb 18
EUG11:25 amEugene
10h 00m
2 stops
STL11:25 pmLambert-St Louis
$292
Find similar
Delta
Dec 22
STL2:18 pmLambert-St Louis
10h 38m
2 stops
EUG10:56 pmEugene
Dec 31
EUG3:35 pmEugene
15h 49m
2 stops
STL9:24 amLambert-St Louis
$381
Find similar

Alaska Airlines flights from St. Louis to Eugene

Our best Alaska Airlines deals on St. Louis to Eugene flight tickets
Alaska Airlines
Jan 17
STL6:19 pmLambert-St Louis
20h 49m
1 stop
EUG1:08 pmEugene
Feb 18
EUG1:25 pmEugene
8h 31m
1 stop
STL11:56 pmLambert-St Louis
$316
Find similar
Alaska Airlines
Dec 4
STL7:00 amLambert-St Louis
16h 30m
1 stop
EUG9:30 pmEugene
Dec 11
EUG9:00 amEugene
12h 59m
1 stop
STL11:59 pmLambert-St Louis
$332
Find similar
Alaska Airlines
Dec 19
STL7:00 amLambert-St Louis
19h 22m
1 stop
EUG12:22 amEugene
Dec 31
EUG5:56 amEugene
16h 03m
1 stop
STL11:59 pmLambert-St Louis
$352
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from St. Louis to Eugene 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, momondo users made 832,500 searches. Data last updated November 5, 2025.
Use the filters below to find and compare flights from St. Louis to Eugene that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

St. LouisEugene

STL - EUG

STLEUG

Lambert-St Louis

Sat 1/17

3:32 pm-11:02 pm

2 stops9h 30m

Eugene

Wed 2/18

11:25 am-11:25 pm

2 stops10h 00m

$254

St. LouisEugene

STL - EUG

STLEUG

Lambert-St Louis

Sat 1/17

5:00 pm-10:49 pm

1 stop7h 49m

Eugene

Wed 2/18

11:25 am-11:25 pm

2 stops10h 00m

$292

St. LouisEugene

STL - EUG

STLEUG

Lambert-St Louis

Sat 1/17

6:19 pm-1:08 pm

1 stop20h 49m

Eugene

Wed 2/18

1:25 pm-11:56 pm

1 stop8h 31m

$316

St. LouisEugene

STL - EUG

STLEUG

Lambert-St Louis

Thu 12/4

7:00 am-9:30 pm

1 stop16h 30m

Eugene

Thu 12/11

9:00 am-11:59 pm

1 stop12h 59m

$332

St. LouisEugene

STL - EUG

STLEUG

Lambert-St Louis

Thu 12/4

1:16 pm-4:57 pm

2 stops29h 41m

Eugene

Thu 12/11

8:35 pm-9:48 pm

1 stop23h 13m

$343

St. LouisEugene

STL - EUG

STLEUG

Lambert-St Louis

Fri 12/19

7:00 am-12:22 am

1 stop19h 22m

Eugene

Wed 12/31

5:56 am-11:59 pm

1 stop16h 03m

$352

St. LouisEugene

STL - EUG

STLEUG

Lambert-St Louis

Fri 12/19

7:00 am-8:59 pm

1 stop15h 59m

Eugene

Thu 1/1

5:56 am-4:26 pm

1 stop8h 30m

$366

St. LouisEugene

STL - EUG

STLEUG

Lambert-St Louis

Mon 12/22

10:10 pm-12:18 pm

1 stop16h 08m

Eugene

Sun 1/4

8:10 pm-9:25 pm

1 stop23h 15m

$379

St. LouisEugene

STL - EUG

STLEUG

Lambert-St Louis

Sun 12/21

11:00 am-6:20 pm

2 stops9h 20m

Eugene

Fri 1/2

12:55 pm-1:00 am

1 stop10h 05m

$478

St. LouisEugene

STL - EUG

STLEUG

Lambert-St Louis

Thu 11/20

7:00 am-2:03 pm

1 stop9h 03m

Eugene

Mon 11/24

5:30 am-1:40 pm

1 stop6h 10m

$556

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Eugene from

How to get the cheapest flight ticket from St. Louis to Eugene

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Eugene?

In general, January is the cheapest month to fly from St. Louis to Eugene. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $341. If you don’t want to visit Eugene in January, then you should wait until March to fly from St. Louis, when ticket prices are also cheap, with an average price of $384.

What is the cheapest day to depart on your flight to Eugene?

According to our data, Saturday is the cheapest day to fly to Eugene from St. Louis. The lowest ticket price found for a Saturday departure recently was $417. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. The most expensive day to fly to Eugene is Friday, with ticket prices averaging around $601.

What is the cheapest time of day to depart on your flight to Eugene?

Flying to Eugene from St. Louis in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $482 when looking at flights departing in the afternoon. If you have a flexible travel schedule, then try to avoid flying in the evening when prices are $552 on average. Flights to Eugene from St. Louis in the evening are generally more expensive because this time of day is more convenient for travelers’ schedules.

When to book flights from St. Louis to Eugene

Are you open to changing your travel dates? Check out the ideal times to fly from St. Louis to Eugene according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap St. Louis to Eugene (STL to EUG) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from St. Louis to Eugene

Direct flights

None
There are no direct flights from St. Louis to Eugene. There are no popular flight routes from St. Louis to Eugene.
Search flight deals

  • How far is Lambert-St Louis to Eugene by plane?

    The distance between Lambert-St Louis and Eugene is about 1733.4 mi. Typically, this will take 6h 47m by plane in normal conditions.

  • When did momondo last update prices for flights from Lambert-St Louis Airport to Eugene Airport?

    Prices for flights from Lambert-St Louis Airport to Eugene Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from Lambert-St Louis Airport to Eugene Airport?

  • How old do you have to be to fly from Lambert-St Louis Airport to Eugene Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Lambert-St Louis Airport to Eugene Airport.

  • What documentation or ID do you need to fly to Eugene Airport?

    The necessary travel and health documents for your Eugene Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from St. Louis to Eugene?

Best airlines flying from St. Louis to Eugene

Compare and see reviews for airlines that fly from St. Louis to Eugene with momondo
Airline
Rating
Free Cancellation
Price
Alaska AirlinesPriceFrom $313Free CancellationRating
8.0
11,241 reviews
Search Alaska Airlines flights
American AirlinesPriceFrom $319Free CancellationRating
7.2
11,040 reviews
Search American Airlines flights
United AirlinesPriceFrom $331Free CancellationRating
7.4
9,000 reviews
Search United Airlines flights
SouthwestPriceFrom $353Free CancellationRating
8.0
4,239 reviews
Search Southwest flights

Traveling to a place near Eugene?

Book flights to Eugene if you plan to visit one of these locations
Newport
Yachats
Albany
Springfield
Corvallis

Why use momondo?

Why should I use momondo to find a flight deal from St. Louis to Eugene?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from St. Louis to Eugene. momondo saves you time and could save you money on your trip.

Can I find flights from St. Louis to Eugene with flexible booking policies on momondo?

Yes. All flights to Eugene from St. Louis on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from St. Louis to Eugene?

momondo helps you find the best flight between St. Louis and Eugene by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from St. Louis to Eugene right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Eugene, momondo offers a useful price alert feature which will track prices for flights to Eugene from St. Louis and alert you when they change.

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