HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
St. Louis

$445+ Cheap flights from Erie to St. Louis (ERI - STL)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/21. Fares are subject to change and may not be available on all flights or dates of travel.
ERI — STL
nov. 15 — nov. 221
sáb. 11/15
sáb. 11/22
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Erie to St. Louis with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 octubre 16, 2025.

This American Airlines deal was found by Cheapflights users on 10/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 10/171:45 pmERI - STL
1 stop6h 45mAmerican Airlines
dom. 10/197:23 amSTL - ERI
1 stop4h 57mAmerican Airlines
Deal found 10/16$536

Cheap flight deals from Erie to St. Louis

Discover tips and strategies to find the most affordable flight options for your journey from Erie (ERI) to St. Louis (STL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated octubre 16, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$521
(American Airlines)

One-way from

$445
(American Airlines)
Provider with most accurate pricing for Erie-Lambert-St Louis flight deals.
Search Deals
Provider most trusted by Cheapflights users for Erie-Lambert-St Louis flights.
Search Deals
From Erie to Lambert-St Louis
Search Deals
One-way flight from Erie to Lambert-St Louis
Search Deals

Cheapflights 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, Cheapflights users made 2,558,603 searches. Data last updated octubre 16, 2025.
Use the filters below to find and compare flights from Erie to St. Louis that are best for you.

Fly from

Erie

Fly to

St. Louis

Route

Depart

Return

Price

ErieSt. Louis

ERI - STL

ERISTL

Erie

mié. 2/18

6:14 am-12:11 pm

1 stop6h 57m

Lambert-St Louis

sáb. 2/21

2:32 pm-10:22 pm

1 stop6h 50m

$522

ErieSt. Louis

ERI - STL

ERISTL

Erie

vie. 11/21

5:25 pm-12:05 am

1 stop7h 40m

$445

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/16

Compare providers for flights from Erie to St. Louis

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Erie to St. Louis in October.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Erie-St. Louis flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Erie-St. Louis flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Erie-St. Louis flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Erie-St. Louis flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Erie-St. Louis flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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 $112). Flying from Erie to St. Louis in November is currently the most expensive (average of $304). 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.

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.

  • How long is the flight from Erie to St. Louis?

    Airlines like American Airlines fly from Erie to St. Louis in about 6h 57m. The time it takes to get you to your destination can typically vary by up to . The distance from Erie to St. Louis is about 583 mi.

  • 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 $112). Flying from Erie to St. Louis in November is currently the most expensive (average of $304). 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

Traveling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
Edwardsville
O'Fallon
Fairview Heights
Maryland Heights
Collinsville
Eureka
Glencoe
St. Peters
Chesterfield
Alton
Farmington
Festus

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.
Newark to St. Louis flights
John F Kennedy Intl to St. Louis flights
John F Kennedy Intl to Kansas City flights
LaGuardia to St. Louis flights
LaGuardia to Kansas City flights
Newark to Kansas City flights
Dulles Intl to Kansas City flights
Philadelphia to St. Louis flights
Dulles Intl to St. Louis flights
Reagan-National to St. Louis flights
Reagan-National to Kansas City flights
Philadelphia to Kansas City flights
Dulles Intl to Springfield flights
Allentown to St. Louis flights
Reagan-National to Springfield flights
Pittsburgh to St. Louis flights
Newark to Springfield flights
John F Kennedy Intl to Springfield flights
LaGuardia to Springfield flights
Pittsburgh to Kansas City flights
Harrisburg to Kansas City flights
Scranton to Kansas City flights
Scranton to St. Louis flights
Allentown to Kansas City flights
Harrisburg to St. Louis flights
Philadelphia to Springfield flights
Pittsburgh to Springfield flights
Reagan-National to Columbia flights
Harrisburg to Springfield flights
Dulles Intl to Columbia flights
Elmira to St. Louis flights
Philadelphia to Columbia flights
State College to Kansas City flights
State College to Springfield flights
State College to St. Louis flights
Scranton to Springfield flights
LaGuardia to Columbia flights
Philadelphia to Joplin flights
Allentown to Springfield flights
Newark to Columbia flights
John F Kennedy Intl to Columbia flights
Newark to Joplin flights
Reagan-National to Joplin flights
Dulles Intl to Joplin flights
LaGuardia to Joplin flights
Elmira to Kansas City flights
Pittsburgh to Joplin flights
Philadelphia to Cape Girardeau flights
Allentown to Columbia flights

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.