$110+ Cheap flights from Arizona 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 2/16. Fares are subject to change and may not be available on all flights or dates of travel.
PHX — ORD
Dec 5 — Dec 121
Round-trip
1 adult, Economy
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Find cheap flights from Arizona 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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Cheapest flights from Arizona to IllinoisExplore the most affordable flight options available from Arizona to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 5, 2026.
Explore the most affordable flight options available from Arizona to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 5, 2026.
This Cheapflightsfares deal was found by Cheapflights users on 11/2. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/107:20 am -
1 stop16h 34m
Mon 12/147:25 am -
1 stop10h 24m
Deal found 11/2![Frontier logo]()
$227
This Kiwi.com deal was found by Cheapflights users on 11/2. 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 12/165:54 pm -
1 stop6h 00m
Fri 12/255:40 am -
1 stop9h 18m
Deal found 11/2![Frontier logo]()
$228
This Kiwi.com deal was found by Cheapflights users on 11/2. 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.
Mon 12/288:23 am -
1 stop20h 26m
Mon 1/47:59 pm -
Nonstop4h 08m
Deal found 11/2![Frontier logo]()
$229
This Kiwi.com deal was found by Cheapflights users on 11/2. 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 12/307:24 am -
1 stop16h 02m
Mon 1/47:59 pm -
Nonstop4h 08m
Deal found 11/2![Frontier logo]()
$230
This Kiwi.com deal was found by Cheapflights users on 11/2. 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.
Fri 12/253:14 pm -
Nonstop3h 07m
Wed 12/307:45 pm -
Nonstop3h 39m
Deal found 11/2![Allegiant Air logo]()
$230
This Kiwi.com deal was found by Cheapflights users on 11/2. 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.
Tue 12/228:56 pm -
1 stop7h 53m
Fri 12/255:40 am -
1 stop9h 18m
Deal found 11/2![Frontier logo]()
$231
This Kiwi.com deal was found by Cheapflights users on 11/4. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/238:20 am -
Nonstop3h 06m
Wed 12/94:01 pm -
Nonstop3h 44m
Deal found 11/4![Allegiant Air logo]()
$231
This Kiwi.com deal was found by Cheapflights users on 11/2. 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.
Thu 12/1011:40 am -
1 stop7h 08m
Tue 12/1510:00 am -
2 stops28h 31m
Deal found 11/2![Frontier logo]()
$232
This Kiwi.com deal was found by Cheapflights users on 11/3. 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.
Tue 12/296:40 am -
Nonstop3h 07m
Fri 1/81:13 pm -
Nonstop3h 45m
Deal found 11/3![Allegiant Air logo]()
$232
This Mytrip deal was found by Cheapflights users on 11/4. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/187:47 am -
1 stop6h 05m
Tue 12/228:37 am -
2 stops14h 32m
Deal found 11/4![Frontier logo]()
$233
This CheapOair deal was found by Cheapflights users on 11/1. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/211:00 am -
Nonstop3h 11m
Fri 12/41:01 pm -
Nonstop3h 44m
Deal found 11/1![Allegiant Air logo]()
$233
This Booking.com deal was found by Cheapflights users on 11/3. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/119:50 pm -
1 stop26h 04m
Tue 12/1510:00 am -
2 stops13h 12m
Deal found 11/3![Frontier logo]()
$234
Best flights from Arizona to IllinoisDiscover carefully curated flight deals from Arizona to Illinois that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated November 5, 2026.
Discover carefully curated flight deals from Arizona to Illinois that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated November 5, 2026.
This CheapOair deal was found by Cheapflights users on 10/31. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/118:00 am -
Nonstop3h 11m
Mon 12/141:01 pm -
Nonstop3h 44m
Deal found 10/31![Allegiant Air logo]()
$260
This Southwest deal was found by Cheapflights users on 10/31. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/86:05 pm -
Nonstop3h 20m
Thu 12/108:50 pm -
Nonstop3h 50m
Deal found 10/31![Southwest logo]()
$283
This United Airlines deal was found by Cheapflights users on 11/1. 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.
Tue 12/16:20 am -
1 stop6h 08m
Tue 12/812:55 pm -
Nonstop4h 02m
Deal found 11/1![United Airlines logo]()
$293
This Delta deal was found by Cheapflights users on 11/1. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/2212:58 am -
1 stop7h 21m
Sat 12/269:59 am -
1 stop6h 26m
Deal found 11/1![Delta logo]()
$334
This Alaska Airlines deal was found by Cheapflights users on 11/2. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/2312:55 pm -
1 stop9h 04m
Sun 5/27:15 pm -
1 stop16h 02m
Deal found 11/2![Alaska Airlines logo]()
$367
This American Airlines deal was found by Cheapflights users on 11/4. 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.
Wed 12/305:03 am -
1 stop7h 13m
Mon 1/41:46 pm -
1 stop6h 42m
Deal found 11/4![American Airlines logo]()
$389
This Kiwi.com deal was found by Cheapflights users on 10/31. 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.
Fri 11/208:20 am -
Nonstop3h 06m
Mon 11/308:51 pm -
Nonstop3h 38m
Deal found 10/31![Allegiant Air logo]()
$261
This Southwest deal was found by Cheapflights users on 11/4. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 1/45:45 am -
Nonstop3h 10m
Mon 1/117:25 am -
Nonstop3h 55m
Deal found 11/4![Southwest logo]()
$283
This CheapOair deal was found by Cheapflights users on 11/3. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/303:55 pm -
Nonstop3h 06m
Mon 12/71:01 pm -
Nonstop3h 44m
Deal found 11/3![Allegiant Air logo]()
$262
This United Airlines deal was found by Cheapflights users on 11/4. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/295:06 pm -
Nonstop3h 34m
Wed 1/61:05 pm -
1 stop5h 36m
Deal found 11/4![United Airlines logo]()
$293
This Southwest deal was found by Cheapflights users on 11/1. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/1211:45 am -
1 stop4h 45m
Mon 2/155:20 am -
Nonstop3h 55m
Deal found 11/1![Southwest logo]()
$289
This Kiwi.com deal was found by Cheapflights users on 11/4. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/302:48 pm -
Nonstop3h 07m
Mon 1/47:59 pm -
Nonstop3h 39m
Deal found 11/4![Allegiant Air logo]()
$270
This United Airlines deal was found by Cheapflights users on 10/31. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/266:20 am -
1 stop5h 55m
Thu 11/265:52 pm -
1 stop8h 17m
Deal found 10/31![United Airlines logo]()
$303
This Delta deal was found by Cheapflights users on 11/4. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/43:00 pm -
1 stop6h 54m
Sun 12/610:24 am -
1 stop8h 15m
Deal found 11/4![Delta logo]()
$338
This Southwest deal was found by Cheapflights users on 11/3. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/111:30 am -
1 stop4h 55m
Sat 12/56:25 pm -
Nonstop3h 55m
Deal found 11/3![Southwest logo]()
$293
This Booking.com deal was found by Cheapflights users on 11/1. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/182:57 pm -
Nonstop3h 08m
Fri 1/81:13 pm -
Nonstop3h 45m
Deal found 11/1![Allegiant Air logo]()
$273
This United Airlines deal was found by Cheapflights users on 11/1. 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.
Sat 1/3012:21 pm -
Nonstop3h 39m
Sun 2/710:55 am -
Nonstop4h 08m
Deal found 11/1![United Airlines logo]()
$313
This Delta deal was found by Cheapflights users on 11/3. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/37:42 am -
2 stops9h 44m
Tue 12/812:34 pm -
2 stops11h 05m
Deal found 11/3![Delta logo]()
$353
This Southwest deal was found by Cheapflights users on 11/4. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/177:05 pm -
1 stop5h 05m
Thu 12/315:20 pm -
1 stop5h 05m
Deal found 11/4![Southwest logo]()
$298
This Kiwi.com deal was found by Cheapflights users on 11/4. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/302:48 pm -
Nonstop3h 07m
Wed 1/64:03 pm -
Nonstop3h 45m
Deal found 11/4![Allegiant Air logo]()
$277
This American Airlines deal was found by Cheapflights users on 11/3. 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 11/204:51 pm -
1 stop6h 16m
Wed 11/252:33 pm -
1 stop7h 39m
Deal found 11/3![American Airlines logo]()
$414
This United Airlines deal was found by Cheapflights users on 11/4. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/912:25 pm -
Nonstop3h 40m
Sun 12/1312:55 pm -
Nonstop4h 02m
Deal found 11/4![United Airlines logo]()
$313
This Delta deal was found by Cheapflights users on 10/31. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/710:35 pm -
1 stop7h 59m
Sat 4/105:20 pm -
1 stop7h 54m
Deal found 10/31![Delta logo]()
$365
This Kiwi.com deal was found by Cheapflights users on 11/4. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/302:48 pm -
Nonstop3h 07m
Fri 1/81:13 pm -
Nonstop3h 45m
Deal found 11/4![Allegiant Air logo]()
$283
This Southwest deal was found by Cheapflights users on 11/2. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/67:05 pm -
1 stop5h 05m
Fri 12/185:00 am -
Nonstop3h 50m
Deal found 11/2![Southwest logo]()
$319
This American Airlines deal was found by Cheapflights users on 11/2. 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 11/178:02 am -
1 stop7h 26m
Sat 11/215:13 pm -
1 stop6h 24m
Deal found 11/2![American Airlines logo]()
$429
This Delta deal was found by Cheapflights users on 10/30. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/31:39 pm -
1 stop8h 15m
Fri 12/115:12 pm -
1 stop7h 38m
Deal found 10/30![Delta logo]()
$371
This Kiwi.com deal was found by Cheapflights users on 11/4. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/283:02 pm -
Nonstop3h 07m
Mon 1/47:59 pm -
Nonstop3h 39m
Deal found 11/4![Allegiant Air logo]()
$287
This Southwest deal was found by Cheapflights users on 11/1. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/18:35 am -
1 stop5h 55m
Tue 12/810:15 am -
2 stops7h 05m
Deal found 11/1![Southwest logo]()
$321
This United Airlines deal was found by Cheapflights users on 11/1. 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.
Wed 11/251:53 pm -
1 stop8h 20m
Tue 12/15:30 pm -
1 stop7h 04m
Deal found 11/1![United Airlines logo]()
$359
Last-minute flights from Arizona to IllinoisDiscover last-minute flight deals from Arizona to Illinois. Data last updated November 5, 2026 and is based on user searches.
Discover last-minute flight deals from Arizona to Illinois. Data last updated November 5, 2026 and is based on user searches.
This Mytrip deal was found by Cheapflights users on 10/31. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/118:10 am -
Nonstop3h 13m
Wed 11/258:55 pm -
Nonstop3h 38m
Deal found 10/31![Allegiant Air logo]()
$236
This Kiwi.com deal was found by Cheapflights users on 11/3. 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.
Fri 11/208:20 am -
Nonstop3h 06m
Fri 11/271:16 pm -
Nonstop3h 38m
Deal found 11/3![Allegiant Air logo]()
$234
This Kiwi.com deal was found by Cheapflights users on 11/4. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/238:20 am -
Nonstop3h 06m
Wed 12/94:01 pm -
Nonstop3h 44m
Deal found 11/4![Allegiant Air logo]()
$231
This CheapOair deal was found by Cheapflights users on 11/1. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/211:00 am -
Nonstop3h 11m
Fri 12/41:01 pm -
Nonstop3h 44m
Deal found 11/1![Allegiant Air logo]()
$233
This Cheapflightsfares deal was found by Cheapflights users on 11/2. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/48:08 pm -
1 stop12h 37m
Mon 12/710:40 am -
1 stop10h 54m
Deal found 11/2![Frontier logo]()
$236
This Mytrip deal was found by Cheapflights users on 11/1. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/109:29 pm -
1 stop11h 36m
Wed 12/1610:40 am -
1 stop10h 54m
Deal found 11/1![Frontier logo]()
$235
This Frontier deal was found by Cheapflights users on 11/3. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/109:29 pm -
1 stop11h 36m
Mon 12/1410:40 am -
1 stop10h 54m
Deal found 11/3![Frontier logo]()
$238
This Kiwi.com deal was found by Cheapflights users on 10/31. 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.
Tue 12/159:29 pm -
1 stop11h 16m
Tue 12/228:35 pm -
1 stop17h 09m
Deal found 10/31![Frontier logo]()
$234
This Kiwi.com deal was found by Cheapflights users on 11/2. 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.
Fri 12/253:14 pm -
Nonstop3h 07m
Wed 12/307:45 pm -
Nonstop3h 39m
Deal found 11/2![Allegiant Air logo]()
$230
This Kiwi.com deal was found by Cheapflights users on 11/3. 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.
Tue 12/296:40 am -
Nonstop3h 07m
Fri 1/81:13 pm -
Nonstop3h 45m
Deal found 11/3![Allegiant Air logo]()
$232
This Kiwi.com deal was found by Cheapflights users on 11/4. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/296:40 am -
Nonstop3h 07m
Mon 1/47:59 pm -
Nonstop3h 39m
Deal found 11/4![Allegiant Air logo]()
$235
This Kiwi.com deal was found by Cheapflights users on 11/2. 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.
Tue 12/296:40 am -
Nonstop3h 07m
Wed 1/64:03 pm -
Nonstop3h 45m
Deal found 11/2![Allegiant Air logo]()
$237
One-way flights from Arizona to IllinoisSearch for one-way flight options from Arizona to Illinois. Find affordable one-way fares based on user searches. Data last updated November 5, 2026.
Search for one-way flight options from Arizona to Illinois. Find affordable one-way fares based on user searches. Data last updated November 5, 2026.
This Cheapflightsfares deal was found by Cheapflights users on 10/31. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/163:45 pm -
1 stop7h 41m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/31![Frontier logo]()
$110
This Super.com deal was found by Cheapflights users on 11/2. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/248:59 pm -
1 stop7h 11m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/2![Frontier logo]()
$111
This Super.com deal was found by Cheapflights users on 11/1. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/206:30 am -
Nonstop3h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/1![Frontier logo]()
$112
This Kiwi.com deal was found by Cheapflights users on 11/2. 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.
Tue 12/159:29 pm -
1 stop11h 16m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/2![Frontier logo]()
$112
This Kiwi.com deal was found by Cheapflights users on 11/3. 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 1/209:03 pm -
1 stop13h 54m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/3![Multiple Airlines logo]()
$112
This Super.com deal was found by Cheapflights users on 11/2. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/103:57 pm -
1 stop7h 57m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/2![Frontier logo]()
$113
This Kiwi.com deal was found by Cheapflights users on 11/1. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/217:40 am -
Nonstop3h 06m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/1![Allegiant Air logo]()
$113
This Kiwi.com deal was found by Cheapflights users on 11/4. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/97:58 am -
2 stops15h 56m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/4![Frontier logo]()
$114
This CheapOair deal was found by Cheapflights users on 11/2. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/118:10 am -
Nonstop3h 13m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/2![Allegiant Air logo]()
$114
This Trip.com deal was found by Cheapflights users on 11/2. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/2610:00 am -
1 stop13h 53m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/2![Frontier logo]()
$115
This Mytrip deal was found by Cheapflights users on 10/31. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/13:31 pm -
1 stop16h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/31![Frontier logo]()
$115
This Mytrip deal was found by Cheapflights users on 11/2. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/85:54 pm -
1 stop14h 51m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/2![Frontier logo]()
$116
Find flight deals from Arizona to Illinois
Keep the following information in mind while searching for Arizona to Illinois flight deals. Data was last updated November 5, 2026.
Round-trip from | $227 (Kiwi.com) |
|---|---|
One-way from | $110 (Cheapflightsfares) |
Popular in | June |
Cheapest in | February |
Average price | $338 |
Good round-trip deal | $235 or less |
Good one-way deal | $110 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Arizona 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 November 5, 2026.
Use the filters below to find and compare flights from Arizona to Illinois that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Quickest round-trip
PhoenixChicago
AZA Phoenix-Mesa Gateway - RFD Chicago Greater Rockford
AZARFD
Phoenix-Mesa Gateway
Mon 1/4
3:02 pm-7:09 pm
Nonstop3h 07m
Chicago Greater Rockford
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$113
PhoenixChicago
AZA Phoenix-Mesa Gateway - RFD Chicago Greater Rockford
AZARFD
Phoenix-Mesa Gateway
Wed 12/9
11:00 am-3:11 pm
Nonstop3h 11m
Chicago Greater Rockford
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$114
PhoenixChicago
AZA Phoenix-Mesa Gateway - RFD Chicago Greater Rockford
AZARFD
Phoenix-Mesa Gateway
Wed 11/11
8:10 am-12:23 pm
Nonstop3h 13m
Chicago Greater Rockford
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$114
PhoenixChicago
AZA Phoenix-Mesa Gateway - RFD Chicago Greater Rockford
AZARFD
Phoenix-Mesa Gateway
Fri 12/4
8:00 am-12:11 pm
Nonstop3h 11m
Chicago Greater Rockford
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$119
PhoenixChicago
AZA Phoenix-Mesa Gateway - RFD Chicago Greater Rockford
AZARFD
Phoenix-Mesa Gateway
Sat 12/19
3:14 pm-7:21 pm
Nonstop3h 07m
Chicago Greater Rockford
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$140
PhoenixChicago
PHX Phoenix Sky Harbor Intl - ORD Chicago O'Hare Intl
PHXORD
Phoenix Sky Harbor Intl
Tue 12/1
10:20 am-3:00 pm
Nonstop3h 40m
Chicago O'Hare Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$142
PhoenixChicago
PHX Phoenix Sky Harbor Intl - ORD Chicago O'Hare Intl
PHXORD
Phoenix Sky Harbor Intl
Mon 1/11
11:40 am-11:47 pm
1 stop11h 07m
Chicago O'Hare Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$142
PhoenixChicago
PHX Phoenix Sky Harbor Intl - MDW Chicago Midway
PHXMDW
Phoenix Sky Harbor Intl
Sat 1/16
7:00 am-11:20 am
Nonstop3h 20m
Chicago Midway
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$142
PhoenixChicago
PHX Phoenix Sky Harbor Intl - ORD Chicago O'Hare Intl
PHXORD
Phoenix Sky Harbor Intl
Wed 12/23
1:50 pm-6:30 pm
Nonstop3h 40m
Chicago O'Hare Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$142
PhoenixChicago
PHX Phoenix Sky Harbor Intl - MDW Chicago Midway
PHXMDW
Phoenix Sky Harbor Intl
Fri 1/15
12:30 pm-6:15 pm
1 stop4h 45m
Chicago Midway
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$147
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Arizona to Illinois
Have a flexible travel schedule? Discover the best time to fly to Illinois from Arizona with our price prediction graph.
AZA-RFD
PHX-ORD
PHX-MDW
PHX-MLI
TUS-ORD
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 Arizona to Illinois
USAZ-USIL
AZA-RFD
PHX-ORD
PHX-MDW
PHX-MLI
What is the cheapest month to book a flight from Arizona to Illinois?
Currently, January is the cheapest month in which you can book a flight from Arizona to Illinois (average of $229). Flying from Arizona to Illinois in November is currently the most expensive (average of $377). 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.
What is the cheapest time of day to fly from AZ to IL?
Find hourly flight availability from Arizona 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 November 5, 2026.
It’s typically best to fly out from Arizona to Illinois at noon. Doing so could potentially save you 14% on the flight price compared to flying in the evening, which is usually more expensive.
Weekly flight availability from Arizona to Illinois
Explore weekly flight availability from Arizona 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 November 5, 2026.
The most flights from USAZ to USIL are scheduled on a Monday (54 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (42 on average).
How much does it cost to fly round-trip from Arizona to Illinois?
Airfare is below average for this route at the moment.
Arizona to Illinois flights typically cost between $273 and $417 in January.The cheapest round-trip price found within the last 5 days was $227 on Frontier (Jan 20-Jan 25).
How far ahead should I book a flight from Arizona to Illinois?
The price you pay for your flight from Arizona to Illinois may vary depending on when you book. For the best chance of a lower fare, look to book 52 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
What is the cheapest day to fly from Arizona to Illinois?
Use this chart to determine the cheapest time to fly round-trip from Arizona to Illinois. Price data was last updated on October 31, 2026.
Travelers seeking maximum savings on their Arizona to Illinois flight should consider departing on Friday mornings when fares are most often at their lowest. Monday evenings flights should be avoided if possible as fares are typically the most expensive at this time.
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 November 5, 2026.
See what other customers who have flown with Southwest,United Airlines, andAllegiant Air from Arizona to Illinois have to say. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Food
7.0
Overall
8.0
Comfort
8.0
Entertainment
7.5
Crew
8.6
Boarding
8.1
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Food
7.0
Overall
8.0
Comfort
8.0
Entertainment
7.5
Crew
8.6
Boarding
8.1
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Food
7.0
Overall
8.0
Comfort
8.0
Entertainment
7.5
Crew
8.6
Boarding
8.1
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Food
7.0
Overall
8.0
Comfort
8.0
Entertainment
7.5
Crew
8.6
Boarding
8.1
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Food
7.0
Overall
8.0
Comfort
8.0
Entertainment
7.5
Crew
8.6
Boarding
8.1
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Food
7.0
Overall
8.0
Comfort
8.0
Entertainment
7.5
Crew
8.6
Boarding
8.1
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Related info for your journey
Find useful and relevant information for your journey from Arizona to Illinois. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Browse thousands of different options on Cheapflights for your next trip
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Alternative routes for Arizona to Illinois
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Illinois by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Arizona to Illinois by cabin class
Find flights from Arizona to Illinois, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Arizona and Illinois flights
Browse other Arizona and Illinois flight options. Last updated on November 5, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Find a return flight route from Illinois
Find the right flight back to Arizona after your stay in Illinois
Arizona to Illinois flights
Consider these flights traveling from Arizona to Illinois.
Top 6 airlines flying from Arizona to Illinois
Discover the top 6 airlines that operate flights from Arizona 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 November 5, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$57 | Average$215 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$124 | Average$215 | FlexibilityNo cancel fee | On-time88% | |
| Cheapest$173 | Average$288 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$187 | Average$385 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$193 | Average$439 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$215 | Average$477 | FlexibilityNo cancel fee | On-time71% |