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Cheap flights from Eugene to St. Louis from $178

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Eugene to St. Louis departing on 8/23. 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 Eugene to St. Louis

Cheap round-trip flights

Enter your travel dates to find the best prices.
Alaska Airlines Logo
3:01 pm - 11:59 pm
EUG
-
STL
6h 58m
1 stop
Alaska Airlines Logo
4:40 pm - 11:57 pm
STL
-
EUG
9h 17m
1 stop
$357Alaska Airlines
Tue, Oct 20 - Tue, Oct 27
Delta Logo
4:40 pm - 12:36 am
EUG
-
STL
5h 56m
1 stop
Delta Logo
3:45 pm - 11:47 pm
STL
-
EUG
10h 02m
2 stops
$362Delta
Tue, Oct 20 - Tue, Oct 27
Delta Logo
4:40 pm - 8:12 am
EUG
-
STL
13h 32m
2 stops
Delta Logo
1:30 pm - 11:53 pm
STL
-
EUG
12h 23m
2 stops
$368Delta
Tue, Oct 20 - Tue, Oct 27
Alaska Airlines Logo
6:05 am - 2:21 pm
EUG
-
STL
6h 16m
1 stop
Alaska Airlines Logo
6:00 am - 1:44 pm
STL
-
EUG
9h 44m
1 stop
$392Alaska Airlines
Thu, Sep 17 - Tue, Sep 22
United Airlines Logo
2:00 pm - 10:59 pm
EUG
-
STL
6h 59m
1 stop
United Airlines Logo
1:36 pm - 8:33 pm
STL
-
EUG
8h 57m
2 stops
$397United Airlines
Thu, Sep 17 - Tue, Sep 22
Delta Logo
4:40 pm - 8:06 am
EUG
-
STL
13h 26m
2 stops
Delta Logo
1:30 pm - 11:46 pm
STL
-
EUG
12h 16m
2 stops
$402Delta
Thu, Sep 17 - Tue, Sep 22
Alaska Airlines Logo
1:49 pm - 11:59 pm
EUG
-
STL
8h 10m
1 stop
Alaska Airlines Logo
7:00 am - 1:12 pm
STL
-
EUG
8h 12m
1 stop
$411Alaska Airlines
Tue, Oct 20 - Tue, Oct 27
Delta Logo
4:40 pm - 12:36 am
EUG
-
STL
5h 56m
1 stop
Delta Logo
2:18 pm - 11:53 pm
STL
-
EUG
11h 35m
2 stops
$416Delta
Tue, Oct 20 - Tue, Oct 27
Southwest Logo
2:40 pm - 11:55 pm
EUG
-
STL
7h 15m
1 stop
Southwest Logo
6:40 pm - 11:10 pm
STL
-
EUG
6h 30m
1 stop
$419Southwest
Tue, Jun 30 - Tue, Jul 7
Delta Logo
4:40 pm - 8:12 am
EUG
-
STL
13h 32m
2 stops
Delta Logo
3:45 pm - 11:47 pm
STL
-
EUG
10h 02m
2 stops
$421Delta
Tue, Oct 20 - Tue, Oct 27

United Airlines flights from Eugene to St. Louis

Our best United Airlines deals on Eugene to St. Louis flight tickets
United Airlines
Sep 17
EUG2:00 pmEugene
6h 59m
1 stop
STL10:59 pmLambert-St Louis
Sep 22
STL1:36 pmLambert-St Louis
8h 57m
2 stops
EUG8:33 pmEugene
$397
United Airlines
Jun 3
EUG6:49 pmEugene
11h 50m
2 stops
STL8:39 amLambert-St Louis
Jun 6
STL5:10 amLambert-St Louis
8h 51m
2 stops
EUG12:01 pmEugene
$553
United Airlines
May 30
EUG12:38 pmEugene
6h 43m
1 stop
STL9:21 pmLambert-St Louis
Jun 6
STL11:25 amLambert-St Louis
13h 34m
2 stops
EUG10:59 pmEugene
$679

Delta flights from Eugene to St. Louis

Our best Delta deals on Eugene to St. Louis flight tickets
Delta
Oct 20
EUG4:40 pmEugene
5h 56m
1 stop
STL12:36 amLambert-St Louis
Oct 27
STL3:45 pmLambert-St Louis
10h 02m
2 stops
EUG11:47 pmEugene
$362
Delta
Oct 20
EUG4:40 pmEugene
13h 32m
2 stops
STL8:12 amLambert-St Louis
Oct 27
STL1:30 pmLambert-St Louis
12h 23m
2 stops
EUG11:53 pmEugene
$368
Delta
Sep 17
EUG4:40 pmEugene
13h 26m
2 stops
STL8:06 amLambert-St Louis
Sep 22
STL1:30 pmLambert-St Louis
12h 16m
2 stops
EUG11:46 pmEugene
$402

momondo 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, momondo users made 832,500 searches. Data last updated May 21, 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

EugeneSt. Louis

EUG - STL

EUGSTL

Eugene

Tue 10/20

3:01 pm-11:59 pm

1 stop6h 58m

Lambert-St Louis

Tue 10/27

4:40 pm-11:57 pm

1 stop9h 17m

$357

EugeneSt. Louis

EUG - STL

EUGSTL

Eugene

Tue 10/20

4:40 pm-12:36 am

1 stop5h 56m

Lambert-St Louis

Tue 10/27

3:45 pm-11:47 pm

2 stops10h 02m

$362

EugeneSt. Louis

EUG - STL

EUGSTL

Eugene

Tue 10/20

4:40 pm-8:12 am

2 stops13h 32m

Lambert-St Louis

Tue 10/27

1:30 pm-11:53 pm

2 stops12h 23m

$368

EugeneSt. Louis

EUG - STL

EUGSTL

Eugene

Thu 9/17

6:05 am-2:21 pm

1 stop6h 16m

Lambert-St Louis

Tue 9/22

6:00 am-1:44 pm

1 stop9h 44m

$392

EugeneSt. Louis

EUG - STL

EUGSTL

Eugene

Thu 9/17

2:00 pm-10:59 pm

1 stop6h 59m

Lambert-St Louis

Tue 9/22

1:36 pm-8:33 pm

2 stops8h 57m

$397

EugeneSt. Louis

EUG - STL

EUGSTL

Eugene

Thu 9/17

4:40 pm-8:06 am

2 stops13h 26m

Lambert-St Louis

Tue 9/22

1:30 pm-11:46 pm

2 stops12h 16m

$402

EugeneSt. Louis

EUG - STL

EUGSTL

Eugene

Tue 10/20

1:49 pm-11:59 pm

1 stop8h 10m

Lambert-St Louis

Tue 10/27

7:00 am-1:12 pm

1 stop8h 12m

$411

EugeneSt. Louis

EUG - STL

EUGSTL

Eugene

Tue 10/20

4:40 pm-12:36 am

1 stop5h 56m

Lambert-St Louis

Tue 10/27

2:18 pm-11:53 pm

2 stops11h 35m

$416
Quickest round-trip

EugeneSt. Louis

EUG - STL

EUGSTL

Eugene

Tue 6/30

2:40 pm-11:55 pm

1 stop7h 15m

Lambert-St Louis

Tue 7/7

6:40 pm-11:10 pm

1 stop6h 30m

$419

EugeneSt. Louis

EUG - STL

EUGSTL

Eugene

Tue 10/20

4:40 pm-8:12 am

2 stops13h 32m

Lambert-St Louis

Tue 10/27

3:45 pm-11:47 pm

2 stops10h 02m

$421

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 St. Louis from

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

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 typical price of a round-trip flight between Eugene and St. Louis?

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

In general, January is the cheapest month to fly from Eugene to St. Louis. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $246. The month of December is another great option to travel to St. Louis, with average flight prices from Eugene averaging around $350.

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

As of May 2026, prices for Eugene to St. Louis flights are approximately 3% more expensive when compared to flights at the same time last year.

When to book flights from Eugene to St. Louis

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

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

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

Fastest flight time

5h 56m

Direct flights

None
The fastest flight from Eugene to St. Louis takes 5h 56m
There are no direct flights from Eugene to St. Louis. There are no popular flight routes from Eugene to St. Louis.
Search flight deals

Frequently asked questions about flying from Eugene to St. Louis

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

    There are 1733.4 mi between Eugene and Lambert-St Louis. Typically, this will take 5h 56m by plane in normal conditions.

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

    Prices for flights from Eugene Airport to Lambert-St Louis Airport were last updated today.

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

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

  • What documentation or ID do you need to fly to Lambert-St Louis Airport?

    The travel and health documents required for your trip to Lambert-St Louis Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Lambert-St Louis Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

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

Best airlines flying from Eugene to St. Louis

Compare and see reviews for airlines that fly from Eugene to St. Louis with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $246Free CancellationRating
7.9
8,449 reviews
Search Delta flights
SouthwestPriceFrom $276Free CancellationRating
7.9
4,280 reviews
Search Southwest flights
Alaska AirlinesPriceFrom $332Free CancellationRating
7.9
12,391 reviews
Search Alaska Airlines flights
United AirlinesPriceFrom $352Free CancellationRating
7.4
9,745 reviews
Search United Airlines flights

  • United Airlines Flights From Eugene to St. Louis

    United Airlines flies from Eugene to St. Louis around 5 times per week, with 9,745 momondo users rating the airline 7.4/10. The cheapest United Airlines deal from Eugene to St. Louis in the last 72 hours was $352 (round-trip), much lower than the average airfare cost of $472 for United Airlines flights on this route.

Traveling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
St. Charles
Chesterfield
Hermann
Fairview Heights
Maryland Heights
Florissant
O'Fallon
St. Peters
Collinsville
Alton
Wentzville
Fenton
Farmington
Festus
Eureka
Clayton
Litchfield
Edwardsville
Shrewsbury
Grafton

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Eugene to St. Louis. Millions of users trust and use momondo every year so you are in good hands.

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

Yes. momondo allows you to filter the results for Eugene to St. Louis flights to just show those with flexible booking policies.

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

Once all potential Eugene to St. Louis flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

Price alerts on flights to St. Louis from Eugene are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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