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$445+ Cheap flights from Erie (ERI) to Illinois

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 1/29. Fares are subject to change and may not be available on all flights or dates of travel.
ERI — ORD
ene. 3 — ene. 101
sáb. 1/3
sáb. 1/10
1 adult, Economy
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Cheap flight deals from Erie to Illinois

Cheapest flights from Erie to Illinois
Explore the most affordable flight options available from Erie to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on diciembre 4, 2025.

This American Airlines deal was found by Cheapflights users on 12/4. 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. 12/1911:20 amERI - ORD
1 stop5h 45mAmerican Airlines
mar. 12/234:05 pmORD - ERI
1 stop5h 33mAmerican Airlines
Deal found 12/4$515
This American Airlines deal was found by Cheapflights users on 12/4. 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. 12/1212:49 pmERI - ORD
1 stop7h 55mAmerican Airlines
lun. 12/152:10 pmORD - ERI
1 stop6h 36mAmerican Airlines
Deal found 12/4$558
This American Airlines deal was found by Cheapflights users on 12/2. 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.
jue. 12/186:00 amERI - ORD
1 stop7h 40mAmerican Airlines
lun. 12/225:00 amORD - ERI
1 stop4h 47mAmerican Airlines
Deal found 12/2$600
This American Airlines deal was found by Cheapflights users on 12/2. 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.
jue. 12/1811:20 amERI - STL
1 stop7h 04mAmerican Airlines
lun. 12/229:08 amSTL - ERI
2 stops12h 30mAmerican Airlines
Deal found 12/2$686

Find flight deals from Erie to Illinois

Keep the following information in mind while searching for Erie to Illinois flight deals. Data was last updated diciembre 4, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$445
(American Airlines)
Provider with most accurate pricing for Erie-Chicago (CHI) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Erie-Chicago (CHI) flights.
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From Erie to Illinois
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Erie to Illinois 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 diciembre 4, 2025.
Use the filters below to find and compare flights from Erie to Illinois that are best for you.

Fly from

Erie

Fly to

Illinois

Route

Depart

Return

Price

ErieSt. Louis

ERI - STL

ERISTL

Erie

jue. 1/29

6:34 am-5:23 pm

2 stops11h 49m

Lambert-St Louis

dom. 2/1

9:54 am-10:43 pm

2 stops11h 49m

$445

ErieChicago

ERI - ORD

ERIORD

Erie

jue. 1/1

5:29 pm-11:42 pm

1 stop7h 13m

Chicago O'Hare Intl

jue. 1/8

3:21 pm-10:43 pm

1 stop6h 22m

$489

ErieChicago

ERI - ORD

ERIORD

Erie

vie. 12/19

11:20 am-4:05 pm

1 stop5h 45m

Chicago O'Hare Intl

mar. 12/23

4:05 pm-10:38 pm

1 stop5h 33m

$515

ErieChicago

ERI - ORD

ERIORD

Erie

jue. 12/18

6:00 am-12:40 pm

1 stop7h 40m

Chicago O'Hare Intl

lun. 12/22

5:00 am-10:47 am

1 stop4h 47m

$600

ErieSt. Louis

ERI - STL

ERISTL

Erie

jue. 12/18

11:20 am-5:24 pm

1 stop7h 04m

Lambert-St Louis

lun. 12/22

9:08 am-10:38 pm

2 stops12h 30m

$686

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/3

Best time to book a flight from Erie to Illinois

Have a flexible travel schedule? Discover the best time to fly to Illinois 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 Illinois

What is the cheapest month to book a flight from Erie to Illinois?

Currently, July is the cheapest month in which you can book a flight from Erie to Illinois (average of $77). Flying from Erie to Illinois in November is currently the most expensive (average of $284). 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 Illinois. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Erie to Illinois?

    Erie (ERI) is the airport you will fly out of if you book a flight from Erie to Illinois. It is only a 5.7 mi journey to Erie (ERI) from Erie’s city center.

  • How long is the flight from Erie to Illinois?

    A quick flight from Erie to Illinois can take about 11h 49m. American Airlines provides one of the quickest options available for as low as $445. The distance from Erie to Illinois is about 583 mi.

  • What are the most popular routes from Erie to Illinois?

    When deciding which route to take from Erie to Illinois consider Erie - Chicago O'Hare Intl, Erie - Lambert-St Louis or Erie - Chicago Midway as they are the most popular.

  • Can I find deals for flights from Erie to Illinois that include hotel bookings?

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

  • How can I find direct flights from Erie to Illinois?

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

  • Can I find deals for business class flights from Erie to Illinois?

    Yes. Cheapflights offers flight deals from Erie to Illinois 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 Illinois?

    Currently, July is the cheapest month in which you can book a flight from Erie to Illinois (average of $77). Flying from Erie to Illinois in November is currently the most expensive (average of $284). 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

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