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 47% 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 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.

$404 Cheap Flights from Erie to St. Louis in 2025/26

1 adult

0 bags

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Find the cheapest flights from Erie to St. Louis

Round-trip

One-way

Cheap round-trip flights

11:57 am - 5:13 pmERI-STL

6h 16m1 stop

9:39 am - 4:29 pmSTL-ERI

5h 50m1 stop

$522American Airlines

Find Deal

mié., feb. 18 - sáb., feb. 21

6:14 am - 5:45 pmERI-STL

12h 31m2 stops

2:32 pm - 10:22 pmSTL-ERI

6h 50m1 stop

$528American Airlines

Find Deal

mié., feb. 18 - sáb., feb. 21

6:14 am - 5:45 pmERI-STL

12h 31m2 stops

6:04 am - 4:29 pmSTL-ERI

9h 25m2 stops

$533American Airlines

Find Deal

mié., feb. 18 - sáb., feb. 21

American Airlines flights from Erie to St. Louis

Our best American Airlines deals on Erie to St. Louis flight tickets

American Airlines

Feb 18

ERI11:57 amErie

6h 16m

1 stop

STL5:13 pmLambert-St Louis

Feb 21

STL9:39 amLambert-St Louis

5h 50m

1 stop

ERI4:29 pmErie

$522

Find similar

American Airlines

Feb 18

ERI6:14 amErie

12h 31m

2 stops

STL5:45 pmLambert-St Louis

Feb 21

STL2:32 pmLambert-St Louis

6h 50m

1 stop

ERI10:22 pmErie

$528

Find similar

American Airlines

Feb 18

ERI6:14 amErie

12h 31m

2 stops

STL5:45 pmLambert-St Louis

Feb 21

STL6:04 amLambert-St Louis

9h 25m

2 stops

ERI4:29 pmErie

$533

Find similar

Fly from

Fly to

Route

Depart

Return

Price

ErieSt. Louis

ERI - STL

ERISTL

Erie

mié. 2/18

11:57 am-5:13 pm

1 stop6h 16m

Lambert-St Louis

sáb. 2/21

9:39 am-4:29 pm

1 stop5h 50m

$522

ErieSt. Louis

ERI - STL

ERISTL

Erie

mié. 2/18

6:14 am-5:45 pm

2 stops12h 31m

Lambert-St Louis

sáb. 2/21

2:32 pm-10:22 pm

1 stop6h 50m

$528

ErieSt. Louis

ERI - STL

ERISTL

Erie

mié. 2/18

6:14 am-5:45 pm

2 stops12h 31m

Lambert-St Louis

sáb. 2/21

6:04 am-4:29 pm

2 stops9h 25m

$533

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

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

Prices

Airlines

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 Thursday when prices can be found for as low as $405. 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 Wednesday because tickets tend to average around $520. 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 Erie in the morning is the least expensive time of day to depart. momondo users have found prices as low as $440 when looking at flights departing in the morning. At noon is when there is more demand to fly to St. Louis, so prices are often more expensive at around $538 per ticket.

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

Direct flights	None

There are no direct flights from Erie to St. Louis. There are no popular flight routes from Erie to St. Louis.

Search flight deals

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 6h 16m.
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.

St. Charles

Chesterfield

Hermann

Fairview Heights

Florissant

Maryland Heights

O'Fallon

Fenton

Collinsville

Wentzville

Alton

St. Peters

Farmington

Festus

Glencoe

Clayton

Edwardsville

Eureka

Litchfield

Shrewsbury

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.