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Cheap flights from St. Louis to Eugene from $138

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 5/13. 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.
Alaska Airlines Logo
4:46 pm - 9:54 pm
STL
-
EUG
7h 08m
1 stop
Alaska Airlines Logo
1:23 pm - 11:59 pm
EUG
-
STL
8h 36m
1 stop
$357Alaska Airlines
Tue, May 5 - Sat, May 9
American Airlines Logo
2:37 pm - 9:21 pm
STL
-
EUG
8h 44m
1 stop
American Airlines Logo
2:49 pm - 12:12 am
EUG
-
STL
7h 23m
1 stop
$366American Airlines
Mon, May 11 - Sat, May 16
Delta Logo
7:59 pm - 11:43 pm
STL
-
EUG
5h 44m
1 stop
Delta Logo
5:10 am - 1:32 pm
EUG
-
STL
6h 22m
1 stop
$367Delta
Tue, May 26 - Tue, Jun 2
Delta Logo
7:59 pm - 11:43 pm
STL
-
EUG
5h 44m
1 stop
Delta Logo
5:10 am - 4:46 pm
EUG
-
STL
9h 36m
2 stops
$371Delta
Mon, May 11 - Sat, May 16
Delta Logo
7:59 pm - 11:43 pm
STL
-
EUG
5h 44m
1 stop
Delta Logo
1:35 pm - 11:21 pm
EUG
-
STL
7h 46m
2 stops
$372Delta
Tue, May 26 - Tue, Jun 2
Southwest Logo
1:45 pm - 10:00 pm
STL
-
EUG
10h 15m
2 stops
Southwest Logo
11:20 am - 10:00 pm
EUG
-
STL
8h 40m
1 stop
$377Southwest
Tue, May 26 - Tue, Jun 2
Southwest Logo
1:45 pm - 10:00 pm
STL
-
EUG
10h 15m
2 stops
Southwest Logo
6:35 am - 5:55 pm
EUG
-
STL
9h 20m
2 stops
$382Southwest
Tue, May 26 - Tue, Jun 2
Southwest Logo
5:40 pm - 10:00 pm
STL
-
EUG
6h 20m
1 stop
Southwest Logo
1:40 pm - 11:45 pm
EUG
-
STL
8h 05m
1 stop
$399Southwest
Tue, Jun 2 - Tue, Jun 9
United Airlines Logo
9:10 am - 9:07 pm
STL
-
EUG
13h 57m
2 stops
United Airlines Logo
12:52 pm - 8:43 pm
EUG
-
STL
5h 51m
1 stop
$401United Airlines
Tue, Apr 28 - Sat, May 2
Southwest Logo
3:55 pm - 10:00 pm
STL
-
EUG
8h 05m
1 stop
Southwest Logo
1:40 pm - 11:40 pm
EUG
-
STL
8h 00m
2 stops
$404Southwest
Tue, Jun 2 - Tue, Jun 9

American Airlines flights from St. Louis to Eugene

Our best American Airlines deals on St. Louis to Eugene flight tickets
American Airlines
May 11
STL2:37 pmLambert-St Louis
8h 44m
1 stop
EUG9:21 pmEugene
May 16
EUG2:49 pmEugene
7h 23m
1 stop
STL12:12 amLambert-St Louis
$366
American Airlines
Apr 14
STL8:00 amLambert-St Louis
7h 26m
1 stop
EUG1:26 pmEugene
Apr 18
EUG2:49 pmEugene
7h 10m
1 stop
STL11:59 pmLambert-St Louis
$527

Delta flights from St. Louis to Eugene

Our best Delta deals on St. Louis to Eugene flight tickets
Delta
May 26
STL7:59 pmLambert-St Louis
5h 44m
1 stop
EUG11:43 pmEugene
Jun 2
EUG5:10 amEugene
6h 22m
1 stop
STL1:32 pmLambert-St Louis
$367
Delta
May 11
STL7:59 pmLambert-St Louis
5h 44m
1 stop
EUG11:43 pmEugene
May 16
EUG5:10 amEugene
9h 36m
2 stops
STL4:46 pmLambert-St Louis
$371
Delta
May 26
STL7:59 pmLambert-St Louis
5h 44m
1 stop
EUG11:43 pmEugene
Jun 2
EUG1:35 pmEugene
7h 46m
2 stops
STL11:21 pmLambert-St Louis
$372

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 March 31, 2026.
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

Cheapest round-trip

St. LouisEugene

STL - EUG

STLEUG

Lambert-St Louis

Tue 5/5

4:46 pm-9:54 pm

1 stop7h 08m

Eugene

Sat 5/9

1:23 pm-11:59 pm

1 stop8h 36m

$357

St. LouisEugene

STL - EUG

STLEUG

Lambert-St Louis

Mon 5/11

2:37 pm-9:21 pm

1 stop8h 44m

Eugene

Sat 5/16

2:49 pm-12:12 am

1 stop7h 23m

$366
Quickest round-trip

St. LouisEugene

STL - EUG

STLEUG

Lambert-St Louis

Tue 5/26

7:59 pm-11:43 pm

1 stop5h 44m

Eugene

Tue 6/2

5:10 am-1:32 pm

1 stop6h 22m

$367

St. LouisEugene

STL - EUG

STLEUG

Lambert-St Louis

Mon 5/11

7:59 pm-11:43 pm

1 stop5h 44m

Eugene

Sat 5/16

5:10 am-4:46 pm

2 stops9h 36m

$371

St. LouisEugene

STL - EUG

STLEUG

Lambert-St Louis

Tue 5/26

7:59 pm-11:43 pm

1 stop5h 44m

Eugene

Tue 6/2

1:35 pm-11:21 pm

2 stops7h 46m

$372

St. LouisEugene

STL - EUG

STLEUG

Lambert-St Louis

Tue 5/26

1:45 pm-10:00 pm

2 stops10h 15m

Eugene

Tue 6/2

11:20 am-10:00 pm

1 stop8h 40m

$377

St. LouisEugene

STL - EUG

STLEUG

Lambert-St Louis

Tue 5/26

1:45 pm-10:00 pm

2 stops10h 15m

Eugene

Tue 6/2

6:35 am-5:55 pm

2 stops9h 20m

$382

St. LouisEugene

STL - EUG

STLEUG

Lambert-St Louis

Tue 6/2

5:40 pm-10:00 pm

1 stop6h 20m

Eugene

Tue 6/9

1:40 pm-11:45 pm

1 stop8h 05m

$399

St. LouisEugene

STL - EUG

STLEUG

Lambert-St Louis

Tue 4/28

9:10 am-9:07 pm

2 stops13h 57m

Eugene

Sat 5/2

12:52 pm-8:43 pm

1 stop5h 51m

$401

St. LouisEugene

STL - EUG

STLEUG

Lambert-St Louis

Tue 6/2

3:55 pm-10:00 pm

1 stop8h 05m

Eugene

Tue 6/9

1:40 pm-11:40 pm

2 stops8h 00m

$404

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, December 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 $353. If you don’t want to visit Eugene in December, then you should wait until November to fly from St. Louis, when ticket prices are also cheap, with an average price of $416.

Can stopping save me money on St. Louis to Eugene flights?

You could potentially save up to 19% on your flight if you consider stops on a St. Louis to Eugene flight.

How have St. Louis to Eugene flight prices changed over time?

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

Fastest flight time

5h 44m

Direct flights

None
The fastest flight from St. Louis to Eugene takes 5h 44m
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 5h 44m 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
United AirlinesPriceFrom $332Free CancellationRating
7.4
9,525 reviews
Search United Airlines flights
SouthwestPriceFrom $353Free CancellationRating
8.0
4,332 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.

An easier way to manage your Eugene trip

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