$144+ 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 9/30. Fares are subject to change and may not be available on all flights or dates of travel.
ERI — ORD
Oct 1 — Oct 81
Round-trip
1 adult, Economy
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Find cheap flights from Erie to Illinois with Cheapflights
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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
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Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Erie to Illinois
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Cheapest flights from Erie to IllinoisExplore 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 September 1, 2026.
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 September 1, 2026.
This American Airlines deal was found by Cheapflights users on 8/31. 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 9/258:16 am -
Nonstop1h 54m
Sun 9/279:15 pm -
Nonstop1h 44m
Deal found 8/31![American Airlines logo]()
$267
This American Airlines deal was found by Cheapflights users on 8/31. 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.
Thu 10/228:07 am -
Nonstop2h 03m
Sun 10/259:10 pm -
Nonstop1h 45m
Deal found 8/31![American Airlines logo]()
$269
This American Airlines deal was found by Cheapflights users on 8/31. 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 10/98:07 am -
Nonstop2h 03m
Sun 10/119:10 pm -
Nonstop1h 45m
Deal found 8/31![American Airlines logo]()
$284
This American Airlines deal was found by Cheapflights users on 8/27. 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 10/75:08 pm -
1 stop8h 00m
Fri 10/235:00 am -
1 stop5h 21m
Deal found 8/27![American Airlines logo]()
$288
This American Airlines deal was found by Cheapflights users on 8/31. 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 11/65:10 pm -
1 stop6h 22m
Sun 11/89:15 pm -
Nonstop1h 38m
Deal found 8/31![American Airlines logo]()
$293
This American Airlines deal was found by Cheapflights users on 8/27. 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.
Thu 9/108:16 am -
Nonstop1h 54m
Sat 9/129:15 pm -
Nonstop1h 44m
Deal found 8/27![American Airlines logo]()
$299
This American Airlines deal was found by Cheapflights users on 8/28. 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 9/125:45 am -
1 stop6h 00m
Wed 9/169:15 pm -
Nonstop1h 44m
Deal found 8/28![American Airlines logo]()
$308
This American Airlines deal was found by Cheapflights users on 8/31. 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.
Mon 9/75:24 am -
Nonstop1h 41m
Sun 10/259:10 pm -
Nonstop1h 45m
Deal found 8/31![American Airlines logo]()
$314
This American Airlines deal was found by Cheapflights users on 8/28. 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.
Thu 10/158:07 am -
Nonstop2h 03m
Sun 10/185:00 am -
1 stop5h 21m
Deal found 8/28![American Airlines logo]()
$323
This American Airlines deal was found by Cheapflights users on 8/27. 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 10/108:07 am -
1 stop17h 12m
Tue 10/133:30 pm -
1 stop5h 26m
Deal found 8/27![American Airlines logo]()
$394
This American Airlines deal was found by Cheapflights users on 8/31. 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.
Tue 9/155:45 am -
1 stop4h 44m
Sat 9/196:53 am -
1 stop4h 34m
Deal found 8/31![American Airlines logo]()
$470
This American Airlines deal was found by Cheapflights users on 8/28. 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 9/115:45 am -
1 stop4h 44m
Mon 9/141:54 pm -
1 stop7h 09m
Deal found 8/28![American Airlines logo]()
$529
Best flights from Erie to IllinoisDiscover carefully curated flight deals from Erie to Illinois that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 1, 2026.
Discover carefully curated flight deals from Erie to Illinois that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 1, 2026.
This American Airlines deal was found by Cheapflights users on 8/31. 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 9/258:16 am -
Nonstop1h 54m
Sun 9/279:15 pm -
Nonstop1h 44m
Deal found 8/31![American Airlines logo]()
$267
This American Airlines deal was found by Cheapflights users on 8/28. 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.
Thu 10/158:07 am -
Nonstop2h 03m
Sun 10/189:10 pm -
Nonstop1h 45m
Deal found 8/28![American Airlines logo]()
$269
This American Airlines deal was found by Cheapflights users on 8/31. 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.
Thu 12/38:01 am -
Nonstop2h 09m
Sat 12/59:15 pm -
Nonstop1h 38m
Deal found 8/31![American Airlines logo]()
$269
This American Airlines deal was found by Cheapflights users on 8/30. 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 10/28:16 am -
Nonstop1h 54m
Sun 10/45:18 am -
1 stop4h 58m
Deal found 8/30![American Airlines logo]()
$278
This American Airlines deal was found by Cheapflights users on 8/29. 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 11/68:01 am -
Nonstop2h 09m
Mon 11/95:19 am -
1 stop6h 08m
Deal found 8/29![American Airlines logo]()
$293
This American Airlines deal was found by Cheapflights users on 8/30. 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.
Thu 10/225:08 pm -
1 stop8h 00m
Sun 10/255:00 am -
1 stop5h 21m
Deal found 8/30![American Airlines logo]()
$303
This American Airlines deal was found by Cheapflights users on 8/31. 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 9/118:16 am -
Nonstop1h 54m
Mon 9/149:15 pm -
Nonstop1h 44m
Deal found 8/31![American Airlines logo]()
$329
This American Airlines deal was found by Cheapflights users on 8/27. 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 10/108:07 am -
1 stop17h 12m
Tue 10/133:30 pm -
1 stop5h 26m
Deal found 8/27![American Airlines logo]()
$394
This American Airlines deal was found by Cheapflights users on 8/31. 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.
Tue 9/155:45 am -
1 stop4h 44m
Sat 9/196:53 am -
1 stop4h 34m
Deal found 8/31![American Airlines logo]()
$470
This American Airlines deal was found by Cheapflights users on 8/28. 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 9/115:45 am -
1 stop4h 44m
Mon 9/1411:09 am -
2 stops9h 54m
Deal found 8/28![American Airlines logo]()
$580
Last-minute flights from Erie to IllinoisDiscover last-minute flight deals from Erie to Illinois. Data last updated September 1, 2026 and is based on user searches.
Discover last-minute flight deals from Erie to Illinois. Data last updated September 1, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 8/31. 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.
Mon 9/75:24 am -
Nonstop1h 41m
Sun 10/259:10 pm -
Nonstop1h 45m
Deal found 8/31![American Airlines logo]()
$314
This American Airlines deal was found by Cheapflights users on 8/27. 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.
Thu 9/108:16 am -
Nonstop1h 54m
Sat 9/129:15 pm -
Nonstop1h 44m
Deal found 8/27![American Airlines logo]()
$299
This American Airlines deal was found by Cheapflights users on 8/28. 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 9/115:45 am -
1 stop4h 44m
Mon 9/141:54 pm -
1 stop7h 09m
Deal found 8/28![American Airlines logo]()
$529
This American Airlines deal was found by Cheapflights users on 8/28. 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 9/125:45 am -
1 stop6h 00m
Wed 9/169:15 pm -
Nonstop1h 44m
Deal found 8/28![American Airlines logo]()
$308
This American Airlines deal was found by Cheapflights users on 8/31. 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.
Tue 9/155:45 am -
1 stop4h 44m
Sat 9/196:53 am -
1 stop4h 34m
Deal found 8/31![American Airlines logo]()
$470
This American Airlines deal was found by Cheapflights users on 8/31. 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 9/258:16 am -
Nonstop1h 54m
Sun 9/279:15 pm -
Nonstop1h 44m
Deal found 8/31![American Airlines logo]()
$267
This American Airlines deal was found by Cheapflights users on 8/29. 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.
Mon 9/288:16 am -
Nonstop1h 54m
Mon 10/59:10 pm -
Nonstop1h 45m
Deal found 8/29![American Airlines logo]()
$269
One-way flights from Erie to IllinoisSearch for one-way flight options from Erie to Illinois. Find affordable one-way fares based on user searches. Data last updated September 1, 2026.
Search for one-way flight options from Erie to Illinois. Find affordable one-way fares based on user searches. Data last updated September 1, 2026.
This Kiwi.com deal was found by Cheapflights users on 8/27. 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 9/309:16 pm -
1 stop26h 43m
Deal found 8/27![Multiple Airlines logo]()
$144
This Kiwi.com deal was found by Cheapflights users on 8/29. 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 10/289:16 pm -
1 stop12h 30m
Deal found 8/29![Multiple Airlines logo]()
$146
This Kiwi.com deal was found by Cheapflights users on 8/31. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/29:16 pm -
1 stop16h 55m
Deal found 8/31![Multiple Airlines logo]()
$170
This Kiwi.com deal was found by Cheapflights users on 8/27. 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.
Sat 9/266:51 pm -
2 stops18h 08m
Deal found 8/27![Multiple Airlines logo]()
$225
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 September 1, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $267 (American Airlines) |
One-way from | $144 (Kiwi.com) |
Good round-trip deal | $437 or less |
Good one-way deal | $341 or less |
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 7,457,451 searches. Data last updated September 1, 2026.
Use the filters below to find and compare flights from Erie to Illinois that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Quickest round-trip
ErieChicago
ERI Erie - ORD Chicago O'Hare Intl
ERIORD
Erie
Fri 9/25
8:16 am-9:10 am
Nonstop1h 54m
Chicago O'Hare Intl
Sun 9/27
9:15 pm-11:59 pm
Nonstop1h 44m
$267
ErieChicago
ERI Erie - ORD Chicago O'Hare Intl
ERIORD
Erie
Thu 10/15
8:07 am-9:10 am
Nonstop2h 03m
Chicago O'Hare Intl
Sun 10/18
9:10 pm-11:55 pm
Nonstop1h 45m
$269
ErieChicago
ERI Erie - ORD Chicago O'Hare Intl
ERIORD
Erie
Thu 12/3
8:01 am-9:10 am
Nonstop2h 09m
Chicago O'Hare Intl
Sat 12/5
9:15 pm-11:53 pm
Nonstop1h 38m
$269
ErieChicago
ERI Erie - ORD Chicago O'Hare Intl
ERIORD
Erie
Fri 10/2
8:16 am-9:10 am
Nonstop1h 54m
Chicago O'Hare Intl
Sun 10/4
5:18 am-11:16 am
1 stop4h 58m
$278
ErieChicago
ERI Erie - ORD Chicago O'Hare Intl
ERIORD
Erie
Fri 11/6
8:01 am-9:10 am
Nonstop2h 09m
Chicago O'Hare Intl
Mon 11/9
5:19 am-12:27 pm
1 stop6h 08m
$293
ErieChicago
ERI Erie - ORD Chicago O'Hare Intl
ERIORD
Erie
Thu 10/22
5:08 pm-12:08 am
1 stop8h 00m
Chicago O'Hare Intl
Sun 10/25
5:00 am-11:21 am
1 stop5h 21m
$303
ErieChicago
ERI Erie - ORD Chicago O'Hare Intl
ERIORD
Erie
Fri 9/11
8:16 am-9:10 am
Nonstop1h 54m
Chicago O'Hare Intl
Mon 9/14
9:15 pm-11:59 pm
Nonstop1h 44m
$329
ErieSt. Louis
ERI Erie - STL Lambert-St Louis
ERISTL
Erie
Sat 10/10
8:07 am-12:19 am
1 stop17h 12m
Lambert-St Louis
Tue 10/13
3:30 pm-9:56 pm
1 stop5h 26m
$394
ErieSt. Louis
ERI Erie - STL Lambert-St Louis
ERISTL
Erie
Tue 9/15
5:45 am-9:29 am
1 stop4h 44m
Lambert-St Louis
Sat 9/19
6:53 am-12:27 pm
1 stop4h 34m
$470
ErieSt. Louis
ERI Erie - STL Lambert-St Louis
ERISTL
Erie
Fri 9/11
5:45 am-9:29 am
1 stop4h 44m
Lambert-St Louis
Mon 9/14
11:09 am-10:03 pm
2 stops9h 54m
$580
Showing 1-10 of 19 resultsSorted by cheapest first
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.
ERI-ORD
ERI-STL
ERI-MDW
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
ERI-USIL
ERI-ORD
ERI-STL
ERI-MDW
What is the cheapest time of day to fly from ERI to IL?
Find hourly flight availability from Erie to Illinois. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 1, 2026.
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Erie to Illinois as you normally would.
Weekly flight availability from Erie to Illinois
Explore weekly flight availability from Erie to Illinois. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated September 1, 2026.
The most flights from ERI to USIL are scheduled on a Monday (1 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (1 on average).
Reviews of airlines servicing Illinois
Get insights into the airlines that provide service to Illinois. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Illinois. Reviews last updated September 1, 2026.
Read through reviews of airlines operating flights from Erie to Illinois, such as American Airlines. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Comfort
7.2
Overall
7.1
Crew
7.9
Entertainment
6.8
Food
6.4
Boarding
7.5
Reviews
1 / 20
2.0
MediocreAnonymous,Aug 2025
BNA - ORD
Comfort
7.2
Overall
7.1
Crew
7.9
Entertainment
6.8
Food
6.4
Boarding
7.5
Reviews
1 / 20
2.0
MediocreAnonymous,Aug 2025
BNA - ORD
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.
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Alternative routes for Erie to Illinois
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Complete your trip
Complete your trip to Illinois by adding a car rental and/or hotel reservation to your travel itinerary.
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Find flights from Erie to Illinois, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Erie and Illinois flights
Browse other Erie and Illinois flight options. Last updated on September 1, 2026.
Popular flight searches
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Erie to Illinois flights
Consider these flights traveling from Erie to Illinois.
Top airline flying from Erie to Illinois
Discover the top airline that operate flights from Erie to Illinois. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated September 1, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$238 | Average$358 | FlexibilityNo cancel fee | On-time71% |