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Cheap flights from Erie to St. Louis from $482

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Erie to St. Louis departing on 6/4. 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.
American Airlines Logo
6:17 am - 1:15 pm
ERI
-
STL
7h 58m
1 stop
American Airlines Logo
5:00 pm - 12:32 am
STL
-
ERI
6h 32m
1 stop
$482American Airlines
Thu, Jun 4 - Sun, Jun 7
American Airlines Logo
6:00 am - 12:11 pm
ERI
-
STL
7h 11m
1 stop
American Airlines Logo
4:32 pm - 10:47 pm
STL
-
ERI
5h 15m
1 stop
$496American Airlines
Fri, Aug 28 - Sun, Aug 30
American Airlines Logo
11:41 am - 6:04 pm
ERI
-
STL
7h 23m
1 stop
American Airlines Logo
3:24 pm - 9:54 pm
STL
-
ERI
5h 30m
1 stop
$497American Airlines
Fri, Apr 17 - Tue, Apr 21
American Airlines Logo
1:45 pm - 11:51 pm
ERI
-
STL
11h 06m
2 stops
American Airlines Logo
4:32 pm - 10:47 pm
STL
-
ERI
5h 15m
1 stop
$502American Airlines
Fri, Aug 28 - Sun, Aug 30
American Airlines Logo
11:41 am - 10:17 pm
ERI
-
STL
11h 36m
2 stops
American Airlines Logo
3:24 pm - 9:54 pm
STL
-
ERI
5h 30m
1 stop
$503American Airlines
Fri, Apr 17 - Tue, Apr 21
American Airlines Logo
1:45 pm - 9:02 pm
ERI
-
STL
8h 17m
2 stops
American Airlines Logo
6:20 am - 4:44 pm
STL
-
ERI
9h 24m
2 stops
$507American Airlines
Fri, Aug 28 - Sun, Aug 30
American Airlines Logo
6:05 am - 2:03 pm
ERI
-
STL
8h 58m
2 stops
American Airlines Logo
12:27 pm - 9:54 pm
STL
-
ERI
8h 27m
2 stops
$508American Airlines
Fri, Apr 17 - Tue, Apr 21
American Airlines Logo
5:20 pm - 11:54 pm
ERI
-
STL
7h 34m
2 stops
American Airlines Logo
5:14 am - 11:07 am
STL
-
ERI
4h 53m
1 stop
$531American Airlines
Thu, Jun 4 - Sun, Jun 7
American Airlines Logo
11:41 am - 6:04 pm
ERI
-
STL
7h 23m
1 stop
American Airlines Logo
2:12 pm - 10:37 pm
STL
-
ERI
7h 25m
1 stop
$619American Airlines
Fri, Apr 17 - Fri, Apr 24
American Airlines Logo
6:05 am - 4:00 pm
ERI
-
STL
10h 55m
2 stops
American Airlines Logo
2:12 pm - 10:37 pm
STL
-
ERI
7h 25m
1 stop
$625American Airlines
Fri, Apr 17 - Fri, Apr 24

American Airlines flights from Erie to St. Louis

Our best American Airlines deals on Erie to St. Louis flight tickets
American Airlines
Jun 4
ERI6:17 amErie
7h 58m
1 stop
STL1:15 pmLambert-St Louis
Jun 7
STL5:00 pmLambert-St Louis
6h 32m
1 stop
ERI12:32 amErie
$482
American Airlines
Aug 28
ERI6:00 amErie
7h 11m
1 stop
STL12:11 pmLambert-St Louis
Aug 30
STL4:32 pmLambert-St Louis
5h 15m
1 stop
ERI10:47 pmErie
$496
American Airlines
Apr 17
ERI11:41 amErie
7h 23m
1 stop
STL6:04 pmLambert-St Louis
Apr 21
STL3:24 pmLambert-St Louis
5h 30m
1 stop
ERI9:54 pmErie
$497

momondo Fare Finder

 
Customize your flight search to find flights from Erie 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 April 2, 2026.
Use the filters below to find and compare flights from Erie to St. Louis that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

ErieSt. Louis

ERI - STL

ERISTL

Erie

Thu 6/4

6:17 am-1:15 pm

1 stop7h 58m

Lambert-St Louis

Sun 6/7

5:00 pm-12:32 am

1 stop6h 32m

$482
Quickest round-trip

ErieSt. Louis

ERI - STL

ERISTL

Erie

Fri 8/28

6:00 am-12:11 pm

1 stop7h 11m

Lambert-St Louis

Sun 8/30

4:32 pm-10:47 pm

1 stop5h 15m

$496

ErieSt. Louis

ERI - STL

ERISTL

Erie

Fri 4/17

11:41 am-6:04 pm

1 stop7h 23m

Lambert-St Louis

Tue 4/21

3:24 pm-9:54 pm

1 stop5h 30m

$497

ErieSt. Louis

ERI - STL

ERISTL

Erie

Fri 8/28

1:45 pm-11:51 pm

2 stops11h 06m

Lambert-St Louis

Sun 8/30

4:32 pm-10:47 pm

1 stop5h 15m

$502

ErieSt. Louis

ERI - STL

ERISTL

Erie

Fri 4/17

11:41 am-10:17 pm

2 stops11h 36m

Lambert-St Louis

Tue 4/21

3:24 pm-9:54 pm

1 stop5h 30m

$503

ErieSt. Louis

ERI - STL

ERISTL

Erie

Fri 8/28

1:45 pm-9:02 pm

2 stops8h 17m

Lambert-St Louis

Sun 8/30

6:20 am-4:44 pm

2 stops9h 24m

$507

ErieSt. Louis

ERI - STL

ERISTL

Erie

Fri 4/17

6:05 am-2:03 pm

2 stops8h 58m

Lambert-St Louis

Tue 4/21

12:27 pm-9:54 pm

2 stops8h 27m

$508

ErieSt. Louis

ERI - STL

ERISTL

Erie

Thu 6/4

5:20 pm-11:54 pm

2 stops7h 34m

Lambert-St Louis

Sun 6/7

5:14 am-11:07 am

1 stop4h 53m

$531

ErieSt. Louis

ERI - STL

ERISTL

Erie

Fri 4/17

11:41 am-6:04 pm

1 stop7h 23m

Lambert-St Louis

Fri 4/24

2:12 pm-10:37 pm

1 stop7h 25m

$619

ErieSt. Louis

ERI - STL

ERISTL

Erie

Fri 4/17

6:05 am-4:00 pm

2 stops10h 55m

Lambert-St Louis

Fri 4/24

2:12 pm-10:37 pm

1 stop7h 25m

$625

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

See travel insights to St. Louis from

How to get the cheapest flight ticket from Erie 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 airlines fly to St. Louis?

Delta, American Airlines and Southwest are the top three most popular airlines that fly to St. Louis from Erie according to our data. Delta is the first choice among our users, with 45% of people opting to fly with this airline when traveling to St. Louis. Keep in mind that there are 3 different airlines that fly to St. Louis on a routine basis, so you have a few additional options to choose from.

When to book flights from Erie to St. Louis

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

Cheap Erie to St. Louis (ERI to STL) flight deals and tips

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

Fastest flight time

7h 23m

Direct flights

None
The fastest flight from Erie to St. Louis takes 7h 23m
There are no direct flights from Erie to St. Louis. There are no popular flight routes from Erie to St. Louis.
Search flight deals

Frequently asked questions about flying from Erie to St. Louis

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

    The straight-line distance from Erie to Lambert-St Louis is 583.8 mi. A reasonable flight in good conditions will take 7h 23m.

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

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

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

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Erie Airport to Lambert-St Louis Airport.

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

    The required travel and health documents for your Lambert-St Louis Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Lambert-St Louis Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

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
O'Fallon
Florissant
St. Peters
Collinsville
Alton
Wentzville
Fenton
Farmington
Clayton
Festus
Eureka
Edwardsville
Litchfield
Shrewsbury
Grafton

Why use momondo?

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

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

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

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

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

Once all potential Erie 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 Erie to St. Louis right now. Can momondo alert me if prices change?

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

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