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$106+ Cheap flights from Erie (ERI) to Illinois

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 3/3. Fares are subject to change and may not be available on all flights or dates of travel.
ERI — ORD
Mar 5 — Mar 121
Thu 3/5
Thu 3/12
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 February 3, 2026.

This United Airlines deal was found by Cheapflights users on 2/1. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/256:00 am
ERI
-
ORD
Nonstop2h 00m
United Airlines
Mon 9/289:15 pm
ORD
-
ERI
Nonstop1h 40m
United Airlines
Deal found 2/1$179
This United Airlines deal was found by Cheapflights users on 2/2. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/1011:00 am
ERI
-
ORD
Nonstop2h 00m
United Airlines
Sun 7/127:40 am
ORD
-
ERI
Nonstop1h 40m
United Airlines
Deal found 2/2$224
This United Airlines deal was found by Cheapflights users on 2/2. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/1711:00 am
ERI
-
ORD
Nonstop2h 00m
United Airlines
Sun 7/197:40 am
ORD
-
ERI
Nonstop1h 40m
United Airlines
Deal found 2/2$269
This American Airlines deal was found by Cheapflights users on 2/2. 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.
Tue 7/286:30 am
ERI
-
ORD
Nonstop1h 40m
American Airlines
Sat 8/18:55 pm
ORD
-
ERI
Nonstop1h 20m
American Airlines
Deal found 2/2$276
This American Airlines deal was found by Cheapflights users on 2/1. 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.
Fri 9/255:41 pm
ERI
-
ORD
1 stop6h 58m
American Airlines
Mon 9/288:55 pm
ORD
-
ERI
Nonstop1h 20m
American Airlines
Deal found 2/1$296
This Kiwi.com deal was found by Cheapflights users on 2/2. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/187:05 pm
ERI
-
ORD
1 stop16h 41m
Multiple Airlines
Sun 2/226:51 pm
ORD
-
ERI
2 stops46h 35m
Multiple Airlines
Deal found 2/2$382
This American Airlines deal was found by Cheapflights users on 2/1. 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.
Fri 2/65:49 pm
ERI
-
ORD
1 stop6h 38m
American Airlines
Mon 2/912:58 pm
ORD
-
ERI
2 stops8h 45m
American Airlines
Deal found 2/1$399
This American Airlines deal was found by Cheapflights users on 2/2. 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.
Wed 2/1812:11 pm
ERI
-
ORD
1 stop5h 10m
American Airlines
Sun 2/225:00 am
ORD
-
ERI
1 stop5h 20m
American Airlines
Deal found 2/2$401
This American Airlines deal was found by Cheapflights users on 2/2. 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.
Fri 7/105:21 pm
ERI
-
ORD
1 stop7h 38m
American Airlines
Sun 7/128:55 pm
ORD
-
ERI
Nonstop1h 20m
American Airlines
Deal found 2/2$413
This American Airlines deal was found by Cheapflights users on 1/31. 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.
Sat 4/411:47 am
ERI
-
STL
1 stop7h 20m
American Airlines
Wed 4/86:00 am
STL
-
ERI
2 stops10h 04m
American Airlines
Deal found 1/31$447
This American Airlines deal was found by Cheapflights users on 2/2. 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.
Wed 3/412:11 pm
ERI
-
STL
1 stop7h 41m
American Airlines
Wed 3/118:00 am
STL
-
ERI
2 stops13h 40m
American Airlines
Deal found 2/2$500
This American Airlines deal was found by Cheapflights users on 1/31. 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.
Fri 4/311:47 am
ERI
-
STL
1 stop21h 48m
American Airlines
Tue 4/75:53 pm
STL
-
ERI
1 stop16h 23m
American Airlines
Deal found 1/31$517

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 February 3, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$179
(United Airlines)

One-way from

$106
(Kiwi.com)

Good round-trip deal

$614 or less
Provider with most accurate pricing for Erie-Chicago (CHI) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Erie-Chicago (CHI) flights.
Search Deals
From Erie to Illinois
Search Deals
One-way flight from Erie to Illinois
Search Deals
Price to beat on a round-trip flight from Erie to Illinois.
Search Deals

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 February 3, 2026.
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

ErieChicago

ERI - ORD

ERIORD

Erie

Fri 7/10

11:00 am-12:00 pm

Nonstop2h 00m

Chicago O'Hare Intl

Sun 7/12

7:40 am-10:20 am

Nonstop1h 40m

$224

ErieChicago

ERI - ORD

ERIORD

Erie

Fri 7/17

11:00 am-12:00 pm

Nonstop2h 00m

Chicago O'Hare Intl

Sun 7/19

7:40 am-10:20 am

Nonstop1h 40m

$269

ErieChicago

ERI - ORD

ERIORD

Erie

Tue 7/28

6:30 am-7:10 am

Nonstop1h 40m

Chicago O'Hare Intl

Sat 8/1

8:55 pm-11:15 pm

Nonstop1h 20m

$276

ErieChicago

ERI - ORD

ERIORD

Erie

Wed 2/18

7:05 pm-10:46 am

1 stop16h 41m

Chicago O'Hare Intl

Sun 2/22

6:51 pm-6:26 pm

2 stops46h 35m

$382

ErieChicago

ERI - ORD

ERIORD

Erie

Wed 2/18

12:11 pm-4:21 pm

1 stop5h 10m

Chicago O'Hare Intl

Sun 2/22

5:00 am-11:20 am

1 stop5h 20m

$401

ErieChicago

ERI - ORD

ERIORD

Erie

Fri 7/10

5:21 pm-11:59 pm

1 stop7h 38m

Chicago O'Hare Intl

Sun 7/12

8:55 pm-11:15 pm

Nonstop1h 20m

$413

ErieChicago

ERI - ORD

ERIORD

Erie

Fri 3/20

11:47 am-4:21 pm

1 stop5h 34m

Chicago O'Hare Intl

Fri 3/27

8:10 am-5:08 pm

1 stop7h 58m

$414

ErieSt. Louis

ERI - STL

ERISTL

Erie

Sat 4/4

11:47 am-6:07 pm

1 stop7h 20m

Lambert-St Louis

Wed 4/8

6:00 am-5:04 pm

2 stops10h 04m

$447

ErieChicago

ERI - ORD

ERIORD

Erie

Mon 2/16

5:33 pm-12:06 am

1 stop7h 33m

Chicago O'Hare Intl

Fri 2/20

5:00 am-11:20 am

1 stop5h 20m

$476

ErieSt. Louis

ERI - STL

ERISTL

Erie

Wed 3/4

12:11 pm-6:52 pm

1 stop7h 41m

Lambert-St Louis

Wed 3/11

8:00 am-10:40 pm

2 stops13h 40m

$500

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/1

Showing 1-10 of 22 results
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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 March is currently the most expensive (average of $275). 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 1h 40m. United Airlines provides one of the quickest options available for as low as $276. The distance from Erie to Illinois is about 396 mi. All flights are typically nonstop.

  • 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.

  • What are the cheapest flights from Erie to Illinois?

    On average you can expect to pay $688 for a flight from Erie to Illinois. The cheapest flight overall is $346 while the most popular route, (Erie - Chicago O'Hare Intl) is currently priced at $224.

  • 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 March is currently the most expensive (average of $275). 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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