$80+ Cheap flights from Illinois to Arizona
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 9/27. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — PHX
Oct 17 — Oct 241
Round-trip
1 adult, Economy
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Find cheap flights from Illinois to Arizona 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.Cheap flight deals from Illinois to Arizona
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Cheapest flights from Illinois to ArizonaExplore the most affordable flight options available from Illinois to Arizona. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 17, 2026.
Explore the most affordable flight options available from Illinois to Arizona. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 17, 2026.
This Priceline deal was found by Cheapflights users on 9/12. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/712:51 pm -
Nonstop4h 21m
Wed 12/96:00 am -
Nonstop3h 46m
Deal found 9/12![Frontier logo]()
$148
This Priceline deal was found by Cheapflights users on 9/14. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/512:51 pm -
Nonstop4h 21m
Sat 12/126:00 am -
Nonstop3h 46m
Deal found 9/14![Frontier logo]()
$154
This Kiwi.com deal was found by Cheapflights users on 9/12. 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 11/146:30 am -
1 stop10h 47m
Sat 12/57:15 am -
1 stop11h 07m
Deal found 9/12![Frontier logo]()
$195
This Southwest deal was found by Cheapflights users on 9/14. 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.
Sat 12/56:05 am -
Nonstop4h 05m
Fri 12/1112:20 am -
Nonstop3h 20m
Deal found 9/14![Southwest logo]()
$211
This Cheapflightsfares deal was found by Cheapflights users on 9/13. 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 11/55:15 pm -
Nonstop4h 21m
Sun 11/811:29 pm -
Nonstop3h 44m
Deal found 9/13![Frontier logo]()
$214
This Kiwi.com deal was found by Cheapflights users on 9/13. 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 11/255:19 am -
Nonstop4h 12m
Thu 12/36:00 am -
Nonstop3h 46m
Deal found 9/13![Frontier logo]()
$215
This Frontier deal was found by Cheapflights users on 9/13. 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.
Mon 11/235:19 am -
Nonstop4h 12m
Tue 12/16:00 am -
Nonstop3h 46m
Deal found 9/13![Frontier logo]()
$216
This CheapOair deal was found by Cheapflights users on 9/13. 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.
Thu 11/1912:37 pm -
Nonstop3h 46m
Sun 11/226:35 am -
Nonstop3h 12m
Deal found 9/13![Allegiant Air logo]()
$216
This Southwest deal was found by Cheapflights users on 9/14. 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.
Wed 10/2111:30 am -
1 stop6h 20m
Fri 10/2312:10 am -
Nonstop3h 30m
Deal found 9/14![Southwest logo]()
$216
This Frontier deal was found by Cheapflights users on 9/15. 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.
Fri 10/164:41 pm -
1 stop8h 31m
Thu 11/59:43 pm -
1 stop9h 34m
Deal found 9/15![Frontier logo]()
$217
This CheapOair deal was found by Cheapflights users on 9/14. 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.
Sun 11/2212:37 pm -
Nonstop3h 46m
Tue 11/246:20 am -
Nonstop3h 12m
Deal found 9/14![Allegiant Air logo]()
$217
This Southwest deal was found by Cheapflights users on 9/14. 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.
Wed 12/25:50 am -
Nonstop3h 55m
Tue 12/812:05 pm -
1 stop5h 50m
Deal found 9/14![Southwest logo]()
$217
Best flights from Illinois to ArizonaDiscover carefully curated flight deals from Illinois to Arizona that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 17, 2026.
Discover carefully curated flight deals from Illinois to Arizona that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 17, 2026.
This Kiwi.com deal was found by Cheapflights users on 9/12. 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.
Sun 11/18:53 pm -
Nonstop3h 43m
Thu 11/55:54 pm -
2 stops14h 39m
Deal found 9/12![Multiple Airlines logo]()
$216
This United Airlines deal was found by Cheapflights users on 9/15. 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 1/164:07 pm -
1 stop6h 12m
Tue 1/196:00 am -
Nonstop3h 48m
Deal found 9/15![United Airlines logo]()
$219
This Southwest deal was found by Cheapflights users on 9/16. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/209:10 pm -
Nonstop4h 00m
Wed 10/2112:10 am -
Nonstop3h 30m
Deal found 9/16![Southwest logo]()
$225
This Kiwi.com deal was found by Cheapflights users on 9/16. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/612:47 pm -
Nonstop4h 01m
Thu 12/106:35 am -
Nonstop3h 22m
Deal found 9/16![Allegiant Air logo]()
$232
This Alaska Airlines deal was found by Cheapflights users on 9/15. 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.
Tue 2/232:54 pm -
1 stop7h 30m
Fri 2/266:00 am -
1 stop5h 54m
Deal found 9/15![Alaska Airlines logo]()
$260
This Delta deal was found by Cheapflights users on 9/16. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/172:32 pm -
1 stop8h 16m
Tue 12/11:46 pm -
1 stop9h 29m
Deal found 9/16![Delta logo]()
$305
This United Airlines deal was found by Cheapflights users on 9/16. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/205:00 am -
1 stop5h 36m
Sat 10/2411:43 pm -
Nonstop3h 30m
Deal found 9/16![United Airlines logo]()
$219
This CheapOair deal was found by Cheapflights users on 9/14. 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.
Sun 9/209:29 pm -
Nonstop3h 39m
Thu 9/243:15 pm -
Nonstop3h 24m
Deal found 9/14![Allegiant Air logo]()
$242
This Southwest deal was found by Cheapflights users on 9/14. 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 10/202:50 pm -
1 stop5h 50m
Fri 10/231:30 pm -
1 stop5h 45m
Deal found 9/14![Southwest logo]()
$273
This Alaska Airlines deal was found by Cheapflights users on 9/13. 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.
Tue 10/207:00 am -
1 stop8h 25m
Sat 10/247:02 am -
1 stop9h 18m
Deal found 9/13![Alaska Airlines logo]()
$291
This United Airlines deal was found by Cheapflights users on 9/15. 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 10/155:00 am -
1 stop6h 07m
Thu 10/2211:52 pm -
Nonstop3h 28m
Deal found 9/15![United Airlines logo]()
$270
This FlightHub deal was found by Cheapflights users on 9/16. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/111:01 pm -
Nonstop3h 44m
Fri 12/182:57 pm -
Nonstop3h 08m
Deal found 9/16![Allegiant Air logo]()
$275
This Kiwi.com deal was found by Cheapflights users on 9/13. 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 10/228:20 pm -
Nonstop3h 43m
Wed 10/289:43 pm -
2 stops32h 11m
Deal found 9/13![Multiple Airlines logo]()
$304
This Delta deal was found by Cheapflights users on 9/15. 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.
Sat 12/124:08 pm -
1 stop7h 59m
Tue 12/153:03 pm -
1 stop6h 52m
Deal found 9/15![Delta logo]()
$305
This Southwest deal was found by Cheapflights users on 9/16. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/146:00 am -
1 stop6h 15m
Sat 10/176:05 am -
Nonstop3h 25m
Deal found 9/16![Southwest logo]()
$280
This Alaska Airlines deal was found by Cheapflights users on 9/13. 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.
Sat 10/317:00 am -
1 stop11h 11m
Tue 11/32:58 pm -
1 stop20h 19m
Deal found 9/13![Alaska Airlines logo]()
$291
This United Airlines deal was found by Cheapflights users on 9/15. 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 11/67:15 am -
Nonstop4h 02m
Fri 11/64:31 pm -
1 stop6h 28m
Deal found 9/15![United Airlines logo]()
$275
This Delta deal was found by Cheapflights users on 9/15. 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.
Mon 11/236:23 am -
1 stop5h 57m
Wed 11/258:58 am -
1 stop5h 43m
Deal found 9/15![Delta logo]()
$306
This Southwest deal was found by Cheapflights users on 9/16. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/45:20 am -
Nonstop3h 50m
Mon 12/76:05 pm -
Nonstop3h 15m
Deal found 9/16![Southwest logo]()
$282
This CheapOair deal was found by Cheapflights users on 9/16. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/302:07 pm -
Nonstop3h 31m
Sat 10/33:01 pm -
Nonstop3h 07m
Deal found 9/16![Allegiant Air logo]()
$282
This Kiwi.com deal was found by Cheapflights users on 9/12. 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.
Sun 9/279:29 pm -
Nonstop3h 39m
Wed 10/77:30 am -
2 stops23h 20m
Deal found 9/12![Multiple Airlines logo]()
$317
This Delta deal was found by Cheapflights users on 9/15. 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 12/1512:34 pm -
1 stop5h 56m
Sun 12/2011:25 pm -
1 stop7h 27m
Deal found 9/15![Delta logo]()
$309
This Southwest deal was found by Cheapflights users on 9/14. 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 10/187:20 am -
Nonstop3h 55m
Sat 10/246:05 am -
Nonstop3h 25m
Deal found 9/14![Southwest logo]()
$286
This FlightHub deal was found by Cheapflights users on 9/12. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/72:07 pm -
Nonstop3h 31m
Sat 10/103:01 pm -
Nonstop3h 07m
Deal found 9/12![Allegiant Air logo]()
$286
This Alaska Airlines deal was found by Cheapflights users on 9/14. 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 10/163:49 pm -
1 stop10h 10m
Mon 10/198:23 pm -
1 stop15h 02m
Deal found 9/14![Alaska Airlines logo]()
$321
This United Airlines deal was found by Cheapflights users on 9/16. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/299:15 am -
Nonstop4h 09m
Sun 11/18:00 am -
Nonstop3h 39m
Deal found 9/16![United Airlines logo]()
$301
This Delta deal was found by Cheapflights users on 9/15. 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 10/202:03 pm -
2 stops8h 50m
Sat 10/244:40 pm -
2 stops13h 59m
Deal found 9/15![Delta logo]()
$315
This Southwest deal was found by Cheapflights users on 9/16. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/69:45 pm -
Nonstop3h 55m
Mon 11/97:05 pm -
1 stop5h 05m
Deal found 9/16![Southwest logo]()
$288
This CheapOair deal was found by Cheapflights users on 9/16. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/302:07 pm -
Nonstop3h 31m
Mon 10/58:00 am -
Nonstop3h 07m
Deal found 9/16![Allegiant Air logo]()
$289
This Alaska Airlines deal was found by Cheapflights users on 9/14. 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.
Sun 11/17:57 pm -
1 stop15h 44m
Sat 11/74:52 pm -
1 stop19h 25m
Deal found 9/14![Alaska Airlines logo]()
$326
Last-minute flights from Illinois to ArizonaDiscover last-minute flight deals from Illinois to Arizona. Data last updated September 17, 2026 and is based on user searches.
Discover last-minute flight deals from Illinois to Arizona. Data last updated September 17, 2026 and is based on user searches.
This CheapOair deal was found by Cheapflights users on 9/16. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/279:29 pm -
Nonstop3h 39m
Thu 10/12:53 pm -
Nonstop3h 20m
Deal found 9/16![Allegiant Air logo]()
$220
This Cheapflightsfares deal was found by Cheapflights users on 9/14. 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.
Mon 10/58:55 pm -
Nonstop4h 10m
Sat 10/104:55 pm -
1 stop11h 39m
Deal found 9/14![Frontier logo]()
$218
This Expedia deal was found by Cheapflights users on 9/14. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/107:20 am -
1 stop9h 53m
Tue 10/139:45 am -
1 stop12h 39m
Deal found 9/14![Multiple Airlines logo]()
$216
This Southwest deal was found by Cheapflights users on 9/13. 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 10/136:05 am -
Nonstop4h 00m
Tue 10/204:10 pm -
1 stop5h 40m
Deal found 9/13![Southwest logo]()
$217
This Southwest deal was found by Cheapflights users on 9/16. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/139:10 pm -
Nonstop4h 00m
Sat 10/177:40 am -
1 stop5h 40m
Deal found 9/16![Southwest logo]()
$219
This United Airlines deal was found by Cheapflights users on 9/16. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/145:00 am -
1 stop5h 36m
Tue 10/204:38 pm -
Nonstop3h 51m
Deal found 9/16![United Airlines logo]()
$219
This Frontier deal was found by Cheapflights users on 9/14. 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 10/1512:26 pm -
1 stop13h 03m
Fri 10/1611:29 pm -
Nonstop3h 47m
Deal found 9/14![Frontier logo]()
$220
This Frontier deal was found by Cheapflights users on 9/15. 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.
Fri 10/164:41 pm -
1 stop8h 31m
Thu 11/59:43 pm -
1 stop9h 34m
Deal found 9/15![Frontier logo]()
$217
This Kiwi.com deal was found by Cheapflights users on 9/17. 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.
Sun 10/189:33 pm -
Nonstop3h 43m
Tue 10/279:43 pm -
2 stops33h 07m
Deal found 9/17![Multiple Airlines logo]()
$218
This Southwest deal was found by Cheapflights users on 9/14. 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.
Wed 10/2111:30 am -
1 stop6h 20m
Fri 10/2312:10 am -
Nonstop3h 30m
Deal found 9/14![Southwest logo]()
$216
This FlightHub deal was found by Cheapflights users on 9/15. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/243:30 pm -
1 stop9h 59m
Fri 10/3012:38 am -
1 stop8h 47m
Deal found 9/15![Frontier logo]()
$218
This Southwest deal was found by Cheapflights users on 9/14. 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.
Sat 10/316:00 am -
1 stop5h 50m
Mon 11/212:20 am -
Nonstop3h 20m
Deal found 9/14![Southwest logo]()
$220
One-way flights from Illinois to ArizonaSearch for one-way flight options from Illinois to Arizona. Find affordable one-way fares based on user searches. Data last updated September 17, 2026.
Search for one-way flight options from Illinois to Arizona. Find affordable one-way fares based on user searches. Data last updated September 17, 2026.
This CheapOair deal was found by Cheapflights users on 9/14. 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.
Sun 9/279:29 pm -
Nonstop3h 39m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/14![Allegiant Air logo]()
$80
This Kiwi.com deal was found by Cheapflights users on 9/15. 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 12/162:59 pm -
1 stop9h 27m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/15![Frontier logo]()
$97
This Super.com deal was found by Cheapflights users on 9/16. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/161:28 pm -
Nonstop3h 44m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/16![Frontier logo]()
$99
This Kiwi.com deal was found by Cheapflights users on 9/15. 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 11/26:44 pm -
1 stop30h 24m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/15![Frontier logo]()
$100
This Mytrip deal was found by Cheapflights users on 9/16. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/236:35 pm -
1 stop18h 06m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/16![Frontier logo]()
$101
This Kiwi.com deal was found by Cheapflights users on 9/17. 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 10/196:35 pm -
1 stop18h 06m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/17![Frontier logo]()
$103
This Cheapflightsfares deal was found by Cheapflights users on 9/16. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/612:17 pm -
Nonstop3h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/16![Frontier logo]()
$105
This Kiwi.com deal was found by Cheapflights users on 9/14. 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 11/116:44 pm -
1 stop30h 24m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/14![Frontier logo]()
$107
This Kiwi.com deal was found by Cheapflights users on 9/16. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/136:44 pm -
1 stop18h 57m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/16![Frontier logo]()
$108
This Super.com deal was found by Cheapflights users on 9/16. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/247:42 pm -
1 stop6h 06m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/16![Frontier logo]()
$111
This Cheapflightsfares deal was found by Cheapflights users on 9/12. 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 11/126:30 am -
1 stop15h 24m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/12![Frontier logo]()
$112
This Kiwi.com deal was found by Cheapflights users on 9/16. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/142:47 pm -
Nonstop3h 52m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/16![Frontier logo]()
$113
Find flight deals from Illinois to Arizona
Keep the following information in mind while searching for Illinois to Arizona flight deals. Data was last updated September 17, 2026.
Round-trip from | $148 (Priceline) |
|---|---|
One-way from | $80 (CheapOair) |
Popular in | June |
Cheapest in | January |
Average price | $319 |
Good round-trip deal | $166 or less |
Good one-way deal | $110 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Illinois to Arizona 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 17, 2026.
Use the filters below to find and compare flights from Illinois to Arizona that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
ChicagoLas Vegas
MDW Chicago Midway - LAS Las Vegas Harry Reid Intl
MDWLAS
Chicago Midway
Wed 10/7
10:15 am-2:20 pm
1 stop6h 05m
Las Vegas Harry Reid Intl
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$115
ChicagoPhoenix
RFD Chicago Greater Rockford - AZA Phoenix-Mesa Gateway
RFDAZA
Chicago Greater Rockford
Mon 12/14
1:01 pm-3:45 pm
Nonstop3h 44m
Phoenix-Mesa Gateway
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$120
ChicagoPhoenix
ORD Chicago O'Hare Intl - PHX Phoenix Sky Harbor Intl
ORDPHX
Chicago O'Hare Intl
Fri 10/30
3:49 pm-11:52 pm
1 stop10h 03m
Phoenix Sky Harbor Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$123
ChicagoPhoenix
ORD Chicago O'Hare Intl - PHX Phoenix Sky Harbor Intl
ORDPHX
Chicago O'Hare Intl
Thu 11/26
10:00 am-6:35 pm
1 stop9h 35m
Phoenix Sky Harbor Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$128
ChicagoPhoenix
MDW Chicago Midway - PHX Phoenix Sky Harbor Intl
MDWPHX
Chicago Midway
Mon 12/14
10:15 am-4:20 pm
2 stops7h 05m
Phoenix Sky Harbor Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$128
ChicagoLas Vegas
RFD Chicago Greater Rockford - LAS Las Vegas Harry Reid Intl
RFDLAS
Chicago Greater Rockford
Thu 11/19
12:37 pm-2:23 pm
Nonstop3h 46m
Las Vegas Harry Reid Intl
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$130
ChicagoLas Vegas
MDW Chicago Midway - LAS Las Vegas Harry Reid Intl
MDWLAS
Chicago Midway
Thu 12/3
1:40 pm-6:00 pm
1 stop6h 20m
Las Vegas Harry Reid Intl
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$131
ChicagoPhoenix
MDW Chicago Midway - PHX Phoenix Sky Harbor Intl
MDWPHX
Chicago Midway
Fri 10/30
6:15 pm-8:00 pm
Nonstop3h 45m
Phoenix Sky Harbor Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$133
ChicagoPhoenix
ORD Chicago O'Hare Intl - PHX Phoenix Sky Harbor Intl
ORDPHX
Chicago O'Hare Intl
Thu 11/12
2:00 pm-9:25 pm
1 stop8h 25m
Phoenix Sky Harbor Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$138
ChicagoLas Vegas
RFD Chicago Greater Rockford - LAS Las Vegas Harry Reid Intl
RFDLAS
Chicago Greater Rockford
Thu 9/24
9:29 pm-11:08 pm
Nonstop3h 39m
Las Vegas Harry Reid Intl
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$142
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Illinois to Arizona
Have a flexible travel schedule? Discover the best time to fly to Arizona from Illinois with our price prediction graph.
RFD-LAS
ORD-LAS
MDW-LAS
ORD-TUS
ORD-PHX
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 Illinois to Arizona
USIL-USAZ
RFD-LAS
ORD-LAS
MDW-LAS
ORD-TUS
What is the cheapest month to book a flight from Illinois to Arizona?
Currently, January is the cheapest month in which you can book a flight from Illinois to Arizona (average of $247). Flying from Illinois to Arizona in June is currently the most expensive (average of $360). 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 IL to AZ?
Find hourly flight availability from Illinois to Arizona. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 17, 2026.
One of the essential ways to save on airfare from Illinois to Arizona is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight in the evening could potentially save you up to 9% on airfare.
Weekly flight availability from Illinois to Arizona
Explore weekly flight availability from Illinois to Arizona. 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 17, 2026.
The most flights from USIL to USAZ are scheduled on a Tuesday (58 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (49 on average).
How much does it cost to fly round-trip from Illinois to Arizona?
Airfare is below average for this route at the moment.
Illinois to Arizona flights typically cost between $269 and $425 in November.The cheapest round-trip price found within the last 5 days was $195 on Frontier (Nov 14-Dec 5).
How far ahead should I book a flight from Illinois to Arizona?
Booking 80 days in advance of your planned departure date is, on average, the best time to get cheap flights from Illinois to Arizona. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
What is the cheapest day to fly from Illinois to Arizona?
Use this chart to determine the cheapest time to fly round-trip from Illinois to Arizona. Price data was last updated on September 12, 2026.
Travelers seeking maximum savings on their Illinois to Arizona flight should consider departing on Friday afternoons when fares are most often at their lowest. Thursday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.
Reviews of airlines servicing Arizona
Get insights into the airlines that provide service to Arizona. 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 Arizona. Reviews last updated September 17, 2026.
Read through reviews of airlines operating flights from Illinois to Arizona, such as Southwest,United Airlines, andAllegiant Air. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Overall
8.0
Boarding
8.1
Food
7.0
Comfort
8.0
Crew
8.6
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentSarah,Aug 2024
MDW - AUS
Overall
8.0
Boarding
8.1
Food
7.0
Comfort
8.0
Crew
8.6
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentSarah,Aug 2024
MDW - AUS
Overall
8.0
Boarding
8.1
Food
7.0
Comfort
8.0
Crew
8.6
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentSarah,Aug 2024
MDW - AUS
Overall
8.0
Boarding
8.1
Food
7.0
Comfort
8.0
Crew
8.6
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentSarah,Aug 2024
MDW - AUS
Overall
8.0
Boarding
8.1
Food
7.0
Comfort
8.0
Crew
8.6
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentSarah,Aug 2024
MDW - AUS
Overall
8.0
Boarding
8.1
Food
7.0
Comfort
8.0
Crew
8.6
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentSarah,Aug 2024
MDW - AUS
Related info for your journey
Find useful and relevant information for your journey from Illinois to Arizona. 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
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
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Alternative routes for Illinois to Arizona
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Arizona by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Illinois to Arizona by cabin class
Find flights from Illinois to Arizona, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Illinois and Arizona flights
Browse other Illinois and Arizona flight options. Last updated on September 17, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Find a return flight route from Arizona
Find the right flight back to Illinois after your stay in Arizona
Illinois to Arizona flights
Consider these flights traveling from Illinois to Arizona.
Top 8 airlines flying from Illinois to Arizona
Discover the top 8 airlines that operate flights from Illinois to Arizona. 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 17, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$64 | Average$225 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$108 | Average$432 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$118 | Average$226 | FlexibilityNo cancel fee | On-time88% | |
| Cheapest$187 | Average$414 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$188 | Average$310 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$196 | Average$470 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$217 | Average$391 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$231 | Average$269 | FlexibilityNo cancel fee | On-time75% |