Cheap flights from Eugene to St. Louis from $143

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 12/25. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
7:00 am - 7:10 pmEUG-STL
10h 10m2 stops
Delta Logo
2:20 pm - 11:11 pmSTL-EUG
10h 51m2 stops
$296Delta
Find Deal
Fri, Dec 5 - Mon, Dec 8
Delta Logo
7:00 am - 6:45 pmEUG-STL
9h 45m2 stops
Delta Logo
7:47 pm - 11:55 pmSTL-EUG
6h 08m1 stop
$324Delta
Find Deal
Tue, Nov 4 - Tue, Nov 11
Alaska Airlines Logo
12:23 pm - 11:56 pmEUG-STL
9h 33m2 stops
Alaska Airlines Logo
7:00 am - 3:13 pmSTL-EUG
10h 13m2 stops
$345Alaska Airlines
Find Deal
Tue, Mar 3 - Wed, Mar 4
Hawaiian Airlines Logo
1:25 pm - 11:56 pmEUG-STL
8h 31m1 stop
Hawaiian Airlines Logo
7:00 am - 12:37 pmSTL-EUG
7h 37m1 stop
$353Hawaiian Airlines
Find Deal
Tue, Mar 3 - Wed, Mar 4
Alaska Airlines Logo
9:00 am - 11:59 pmEUG-STL
12h 59m1 stop
Alaska Airlines Logo
7:00 am - 5:08 pmSTL-EUG
12h 08m1 stop
$357Alaska Airlines
Find Deal
Fri, Dec 5 - Mon, Dec 8
Hawaiian Airlines Logo
1:25 pm - 11:56 pmEUG-STL
8h 31m1 stop
Hawaiian Airlines Logo
2:55 pm - 9:02 pmSTL-EUG
8h 07m1 stop
$359Hawaiian Airlines
Find Deal
Tue, Mar 3 - Wed, Mar 4
United Airlines Logo
6:52 pm - 12:28 pmEUG-STL
15h 36m3 stops
United Airlines Logo
1:35 pm - 10:56 pmSTL-EUG
11h 21m2 stops
$487United Airlines
Find Deal
Tue, Nov 4 - Tue, Nov 11
Southwest Logo
12:25 pm - 11:10 pmEUG-STL
8h 45m2 stops
Southwest Logo
6:45 am - 11:30 amSTL-EUG
6h 45m1 stop
$552Southwest
Find Deal
Tue, Oct 21 - Sat, Oct 25
United Airlines Logo
6:00 am - 10:00 pmEUG-STL
14h 00m3 stops
United Airlines Logo
1:35 pm - 10:56 pmSTL-EUG
11h 21m2 stops
$555United Airlines
Find Deal
Wed, Oct 22 - Wed, Oct 29
Southwest Logo
6:10 am - 4:20 pmEUG-STL
8h 10m2 stops
Southwest Logo
5:35 am - 1:50 pmSTL-EUG
10h 15m2 stops
$557Southwest
Find Deal
Tue, Oct 21 - Sat, Oct 25

Hawaiian Airlines flights from Eugene to St. Louis

Our best Hawaiian Airlines deals on Eugene to St. Louis flight tickets
Hawaiian Airlines
Mar 3
EUG1:25 pmEugene
8h 31m
1 stop
STL11:56 pmLambert-St Louis
Mar 4
STL7:00 amLambert-St Louis
7h 37m
1 stop
EUG12:37 pmEugene
Hawaiian Airlines
Mar 3
EUG1:25 pmEugene
8h 31m
1 stop
STL11:56 pmLambert-St Louis
Mar 4
STL2:55 pmLambert-St Louis
8h 07m
1 stop
EUG9:02 pmEugene

Delta flights from Eugene to St. Louis

Our best Delta deals on Eugene to St. Louis flight tickets
Delta
Dec 5
EUG7:00 amEugene
10h 10m
2 stops
STL7:10 pmLambert-St Louis
Dec 8
STL2:20 pmLambert-St Louis
10h 51m
2 stops
EUG11:11 pmEugene
Delta
Nov 4
EUG7:00 amEugene
9h 45m
2 stops
STL6:45 pmLambert-St Louis
Nov 11
STL7:47 pmLambert-St Louis
6h 08m
1 stop
EUG11:55 pmEugene
Delta
Nov 4
EUG11:29 amEugene
10h 55m
2 stops
STL12:24 amLambert-St Louis
Nov 11
STL2:36 pmLambert-St Louis
11h 19m
2 stops
EUG11:55 pmEugene

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 October 8, 2025.
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

EugeneSt. Louis

EUG - STL

EUGSTL

Eugene

Fri 12/5

7:00 am-7:10 pm

2 stops10h 10m

Lambert-St Louis

Mon 12/8

2:20 pm-11:11 pm

2 stops10h 51m

$296

EugeneSt. Louis

EUG - STL

EUGSTL

Eugene

Tue 11/4

7:00 am-6:45 pm

2 stops9h 45m

Lambert-St Louis

Tue 11/11

7:47 pm-11:55 pm

1 stop6h 08m

$324

EugeneSt. Louis

EUG - STL

EUGSTL

Eugene

Tue 3/3

12:23 pm-11:56 pm

2 stops9h 33m

Lambert-St Louis

Wed 3/4

7:00 am-3:13 pm

2 stops10h 13m

$345

EugeneSt. Louis

EUG - STL

EUGSTL

Eugene

Tue 3/3

1:25 pm-11:56 pm

1 stop8h 31m

Lambert-St Louis

Wed 3/4

7:00 am-12:37 pm

1 stop7h 37m

$353

EugeneSt. Louis

EUG - STL

EUGSTL

Eugene

Fri 12/5

9:00 am-11:59 pm

1 stop12h 59m

Lambert-St Louis

Mon 12/8

7:00 am-5:08 pm

1 stop12h 08m

$357

EugeneSt. Louis

EUG - STL

EUGSTL

Eugene

Tue 3/3

1:25 pm-11:56 pm

1 stop8h 31m

Lambert-St Louis

Wed 3/4

2:55 pm-9:02 pm

1 stop8h 07m

$359

EugeneSt. Louis

EUG - STL

EUGSTL

Eugene

Tue 11/4

6:52 pm-12:28 pm

3 stops15h 36m

Lambert-St Louis

Tue 11/11

1:35 pm-10:56 pm

2 stops11h 21m

$487

EugeneSt. Louis

EUG - STL

EUGSTL

Eugene

Tue 10/21

12:25 pm-11:10 pm

2 stops8h 45m

Lambert-St Louis

Sat 10/25

6:45 am-11:30 am

1 stop6h 45m

$552

EugeneSt. Louis

EUG - STL

EUGSTL

Eugene

Wed 10/22

6:00 am-10:00 pm

3 stops14h 00m

Lambert-St Louis

Wed 10/29

1:35 pm-10:56 pm

2 stops11h 21m

$555

EugeneSt. Louis

EUG - STL

EUGSTL

Eugene

Tue 10/21

6:10 am-4:20 pm

2 stops8h 10m

Lambert-St Louis

Sat 10/25

5:35 am-1:50 pm

2 stops10h 15m

$557

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 18 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 cheapest month to fly to St. Louis?

In general, October 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 $362. The month of September is another great option to travel to St. Louis, with average flight prices from Eugene averaging around $392.

What is the cheapest day to depart on your flight to St. Louis?

The cheapest day to depart on your flight to St. Louis is on a Tuesday when prices can be found for as low as $412. This is often the case because there is less demand to fly during this day of the week. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around $705. These prices are subject to change though, so be sure to set up a Price Alert for flights to St. Louis.

What is the cheapest time of day to depart on your flight to St. Louis?

Flying to St. Louis from Eugene in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $397 when looking at flights departing in the afternoon. At noon is when there is more demand to fly to St. Louis, so prices are often more expensive at around $503 per ticket.

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

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

Direct flights

None
There are no direct flights from Eugene to St. Louis. There are no popular flight routes 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 40m 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 $315Free CancellationRating
7.9
7,969 reviews
Search Delta flights
Alaska AirlinesPriceFrom $332Free CancellationRating
8.0
11,043 reviews
Search Alaska Airlines flights
SouthwestPriceFrom $336Free CancellationRating
8.0
4,236 reviews
Search Southwest flights
United AirlinesPriceFrom $338Free CancellationRating
7.4
8,964 reviews
Search United Airlines flights
American AirlinesPriceFrom $346Free CancellationRating
7.2
11,042 reviews
Search American Airlines flights

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
Collinsville
Fenton
Wentzville
St. Peters
Alton
Farmington
Festus
Glencoe
Clayton
Edwardsville
Eureka
Litchfield
Shrewsbury

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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1 adult
Fri 11/7
Fri 11/14

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