What is the cheapest day to fly from Erie to St. Louis?

Travelers seeking maximum savings on their Erie to St. Louis flight should consider departing on Thursday mornings when fares are most often at their lowest. Friday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

In terms of precipitation, rainfall in St. Louis ranges from 2.2 - 4.7 inches per month. May is typically the wettest month, when rainfall can reach 4.7 in. February is typically the driest time to visit St. Louis when rainfall is around 2.2 in.

If weather is an important factor for your trip to St. Louis, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 32.0 F).

What is the cheapest day to fly round-trip from Erie to St. Louis?

Travelers have found that booking a Wednesday departure is the best way to save up to 28% on the cost of booking your flights compared to booking on days of the week where this route is of high demand.

What is the cheapest time of day to fly from ERI to STL?

Unlike at noon, when flights are generally more expensive, you can save up to 19% on flights from Erie to St. Louis by exploring options for tickets in the morning.

Can I find deals for flights from Erie to St. Louis that include hotel bookings?

Yes. In addition to deals on Erie to St. Louis flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Erie to St. Louis?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Erie to St. Louis.

Can I find deals for business class flights from Erie to St. Louis?

Yes. Cheapflights offers flight deals from Erie to St. Louis by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$464+ Flights from Erie to St. Louis

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Cheap flight deals from Erie to St. Louis

Round-trip from	$464 (American Airlines)

From Erie to Lambert-St Louis

Search Deals

Find flight deals from Erie to St. Louis

Cheapest flights from Erie to St. Louis
Explore the most affordable flight options available from Erie to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on agosto 14, 2025.

jue. 8/286:00 amERI - STL

1 stop7h 11mAmerican Airlines

sáb. 8/307:32 amSTL - ERI

1 stop4h 48mAmerican Airlines

Deal found 8/12

$464

jue. 8/286:00 amERI - STL

1 stop7h 11mAmerican Airlines

lun. 9/17:32 amSTL - ERI

1 stop4h 39mAmerican Airlines

Deal found 8/12

$496

Best flights from Erie to St. Louis
Discover carefully curated flight deals from Erie to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated agosto 14, 2025.

jue. 8/286:00 amERI - STL

1 stop7h 11mAmerican Airlines

sáb. 8/307:32 amSTL - ERI

1 stop4h 48mAmerican Airlines

Deal found 8/12

$464

jue. 8/286:00 amERI - STL

1 stop7h 11mAmerican Airlines

lun. 9/17:32 amSTL - ERI

1 stop4h 39mAmerican Airlines

Deal found 8/12

$496

Last-minute flights from Erie to St. Louis
Discover last-minute flight deals from Erie to St. Louis. Data last updated agosto 14, 2025 and is based on user searches.

jue. 8/286:00 amERI - STL

1 stop7h 11mAmerican Airlines

sáb. 8/307:32 amSTL - ERI

1 stop4h 48mAmerican Airlines

Deal found 8/12

$464

jue. 8/286:00 amERI - STL

1 stop7h 11mAmerican Airlines

lun. 9/17:32 amSTL - ERI

1 stop4h 39mAmerican Airlines

Deal found 8/12

$496

Fly from

Fly to

Route

Depart

Return

Price

ErieSt. Louis

ERI - STL

ERISTL

Erie

jue. 8/28

6:00 am-12:11 pm

1 stop7h 11m

Lambert-St Louis

sáb. 8/30

7:32 am-1:20 pm

1 stop4h 48m

$464

ErieSt. Louis

ERI - STL

ERISTL

Erie

jue. 8/28

6:00 am-12:11 pm

1 stop7h 11m

Lambert-St Louis

lun. 9/1

7:32 am-1:11 pm

1 stop4h 39m

$496

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/12

Best time to book a flight from Erie to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis from Erie with our price prediction graph.

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Erie to St. Louis

What is the cheapest month to book a flight from Erie to St. Louis?

Currently, August is the cheapest month in which you can book a flight from Erie to St. Louis (average of $311). Flying from Erie to St. Louis in March is currently the most expensive (average of $356). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Reviews of airlines servicing St. Louis

See what other customers who have flown with American Airlines from Erie to St. Louis have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

American Airlines

7.2

Good

10,000 reviews

Reviews

1 / 20

2.0

Mediocre

Anonymous,Aug 2025

MIA - DCA

Flight delayed 5 hours and was told it was due to mechanical issues. Instead of providing lodging due to missed connecting flight, American changed the cause of delay to weather, which meant they were not able required to provide a hotel. To make matters worse, one of our checked bags was lost even though its status said it was “by the plane” but no one at the service desk seemed able to locate it.

American Airlines

7.2

Good

10,000 reviews

American Airlines

7.2

Good

10,000 reviews

Reviews

1 / 20

2.0

Mediocre

Anonymous,Aug 2025

MIA - DCA

Related info for your journey

Can I find deals for flights from Erie to St. Louis that include hotel bookings?
Yes. In addition to deals on Erie to St. Louis flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Erie to St. Louis?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Erie to St. Louis.
Can I find deals for business class flights from Erie to St. Louis?
Yes. Cheapflights offers flight deals from Erie to St. Louis by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Erie to St. Louis?
Currently, August is the cheapest month in which you can book a flight from Erie to St. Louis (average of $311). Flying from Erie to St. Louis in March is currently the most expensive (average of $356). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

O'Fallon

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Maryland Heights

Collinsville

Eureka

St. Peters

Glencoe

Alton

Chesterfield

Farmington

Festus

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Top airline flying from Erie to St. Louis

Airline	Cheapest	Average	Flexibility	On-time
American Airlines	Cheapest$400	Average$440	FlexibilityNo cancel fee	On-time71%

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$464+ Cheap flights from Erie to St. Louis (ERI - STL)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/28. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Erie to St. Louis with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Erie to St. Louis

Round-trip from

Find flight deals from Erie to St. Louis

Cheapest flights from Erie to St. LouisExplore the most affordable flight options available from Erie to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on agosto 14, 2025.

Explore the most affordable flight options available from Erie to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on agosto 14, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Erie to St. Louis that are best for you.

Best time to book a flight from Erie to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis from Erie with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Erie to St. Louis

What is the cheapest month to book a flight from Erie to St. Louis?

Reviews of airlines servicing St. Louis

See what other customers who have flown with American Airlines from Erie to St. Louis have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Erie to St. Louis. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

Can I find deals for flights from Erie to St. Louis that include hotel bookings?

How can I find direct flights from Erie to St. Louis?

Can I find deals for business class flights from Erie to St. Louis?

What is the cheapest month to book a flight from Erie to St. Louis?

Traveling to a place near St. Louis?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Erie to St. Louis

See prices for flight routes from nearby airports that may be better suited for you.

Top airline flying from Erie to St. Louis

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Book with Flexibility

Travel Smart

Cheapest flights from Erie to St. Louis
Explore the most affordable flight options available from Erie to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on agosto 14, 2025.