$89+ 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 12/6. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — PHX
Dec 5 — Dec 121
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
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
Cheapest
Best
Last-minute
One-way
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 November 5, 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 November 5, 2026.
This CheapOair 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/612:32 pm -
Nonstop3h 32m
Thu 12/107:40 am -
Nonstop3h 02m
Deal found 11/4![Allegiant Air logo]()
$158
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 11/141:52 pm -
Nonstop3h 16m
Wed 11/1810:00 am -
Nonstop2h 53m
Deal found 11/1![Allegiant Air logo]()
$172
This Expedia 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/412:02 pm -
Nonstop3h 16m
Wed 11/117:10 am -
Nonstop3h 02m
Deal found 11/1![Allegiant Air logo]()
$209
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.
Wed 11/412:02 pm -
Nonstop3h 16m
Sat 11/79:00 am -
Nonstop3h 02m
Deal found 11/1![Allegiant Air logo]()
$227
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 11/141:52 pm -
Nonstop3h 16m
Sat 11/218:10 am -
Nonstop2h 53m
Deal found 11/1![Allegiant Air logo]()
$235
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.
Mon 12/218:47 pm -
Nonstop3h 29m
Mon 12/283:22 pm -
Nonstop2h 59m
Deal found 11/2![Allegiant Air logo]()
$237
This CheapOair deal was found by Cheapflights users on 11/5. 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 11/182:43 pm -
Nonstop3h 31m
Sat 11/218:10 am -
Nonstop2h 53m
Deal found 11/5![Allegiant Air logo]()
$241
This Kissandfly.com deal was found by Cheapflights users on 11/5. 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 Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/2712:05 pm -
Nonstop4h 10m
Fri 12/410:52 am -
1 stop17h 07m
Deal found 11/5![Frontier logo]()
$252
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 11/255:15 am -
1 stop7h 10m
Wed 11/258:59 pm -
1 stop7h 11m
Deal found 11/3![Frontier logo]()
$253
This Kiwi.com deal was found by Cheapflights users on 11/5. 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 11/71:52 pm -
Nonstop3h 16m
Wed 11/117:10 am -
Nonstop3h 02m
Deal found 11/5![Allegiant Air logo]()
$253
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.
Mon 12/218:45 pm -
Nonstop3h 39m
Tue 12/296:40 am -
Nonstop3h 07m
Deal found 11/3![Allegiant Air logo]()
$253
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.
Tue 12/228:35 pm -
1 stop17h 09m
Tue 12/2910:53 pm -
1 stop19h 37m
Deal found 11/2![Frontier logo]()
$254
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 November 5, 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 November 5, 2026.
This CheapOair 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/612:32 pm -
Nonstop3h 32m
Thu 12/107:40 am -
Nonstop3h 02m
Deal found 11/4![Allegiant Air logo]()
$158
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.
Mon 1/257:50 pm -
Nonstop4h 00m
Sat 1/307:00 am -
Nonstop3h 20m
Deal found 11/1![Southwest logo]()
$283
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.
Sat 1/309:15 am -
Nonstop4h 13m
Mon 2/15:11 pm -
Nonstop3h 34m
Deal found 10/31![United Airlines logo]()
$283
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.
Sun 12/69:39 pm -
2 stops24h 09m
Thu 12/107:40 am -
Nonstop3h 02m
Deal found 11/1![Multiple Airlines logo]()
$297
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 1/231:41 pm -
1 stop9h 36m
Thu 1/287:20 am -
1 stop8h 33m
Deal found 11/2![Delta logo]()
$303
This Alaska 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/277:26 am -
1 stop10h 23m
Sat 12/511:09 am -
2 stops11h 50m
Deal found 11/1![Alaska Airlines logo]()
$376
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/25:00 am -
1 stop6h 24m
Sun 2/75:35 pm -
1 stop5h 37m
Deal found 11/1![American Airlines logo]()
$379
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.
Wed 3/38:24 pm -
Nonstop3h 28m
Wed 3/103:39 pm -
Nonstop2h 55m
Deal found 11/1![Allegiant Air logo]()
$198
This CheapOair 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 1/2811:30 am -
Nonstop3h 43m
Thu 2/46:40 am -
Nonstop3h 02m
Deal found 11/4![Allegiant Air logo]()
$211
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 3/67:47 pm -
Nonstop3h 28m
Wed 3/103:39 pm -
Nonstop2h 55m
Deal found 11/1![Allegiant Air logo]()
$218
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.
Thu 12/38:30 pm -
Nonstop4h 04m
Sat 12/54:02 pm -
Nonstop3h 38m
Deal found 11/4![United Airlines logo]()
$283
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.
Fri 12/48:50 pm -
Nonstop3h 50m
Tue 12/81:35 pm -
1 stop5h 15m
Deal found 11/4![Southwest logo]()
$289
This CheapOair deal was found by Cheapflights users on 11/5. 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 11/182:43 pm -
Nonstop3h 31m
Sat 11/218:10 am -
Nonstop2h 53m
Deal found 11/5![Allegiant Air logo]()
$241
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.
Sat 12/125:05 am -
Nonstop3h 50m
Mon 12/143:10 pm -
1 stop5h 50m
Deal found 11/4![Southwest logo]()
$293
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/54:10 pm -
Nonstop4h 05m
Tue 12/86:20 am -
1 stop5h 55m
Deal found 11/3![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.
Sat 12/269:59 am -
1 stop6h 26m
Mon 1/412:55 am -
1 stop6h 45m
Deal found 11/1![Delta logo]()
$334
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.
Sat 1/1610:25 am -
1 stop5h 05m
Tue 1/192:20 pm -
1 stop5h 45m
Deal found 11/4![Southwest logo]()
$303
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.
Fri 12/111:01 pm -
Nonstop3h 44m
Fri 12/182:57 pm -
Nonstop3h 08m
Deal found 11/3![Allegiant Air logo]()
$256
This Delta 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 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 51m
Deal found 11/2![Delta logo]()
$343
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/112:18 pm -
1 stop8h 09m
Tue 12/155:26 pm -
1 stop5h 37m
Deal found 11/1![American Airlines logo]()
$379
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.
Sat 12/52:18 pm -
1 stop8h 09m
Mon 12/74:58 pm -
1 stop5h 23m
Deal found 11/3![American Airlines logo]()
$379
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.
Fri 1/291:10 pm -
2 stops9h 37m
Fri 2/54:32 pm -
1 stop6h 25m
Deal found 11/3![Delta logo]()
$348
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 12/175:15 am -
Nonstop3h 55m
Mon 12/215:10 am -
Nonstop3h 10m
Deal found 11/4![Southwest logo]()
$317
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.
Sat 2/138:27 am -
1 stop6h 59m
Sat 2/201:45 pm -
1 stop8h 14m
Deal found 11/4![United Airlines logo]()
$349
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.
Thu 2/1112:32 pm -
2 stops22h 16m
Sat 2/203:09 pm -
Nonstop2h 56m
Deal found 11/4![Multiple Airlines logo]()
$423
This Alaska 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/126:00 am -
2 stops13h 39m
Sun 12/276:00 am -
1 stop16h 59m
Deal found 10/31![Alaska Airlines logo]()
$433
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 3/912:19 pm -
Nonstop3h 30m
Sat 3/136:30 am -
Nonstop2h 59m
Deal found 11/3![Allegiant Air logo]()
$287
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/1212:32 pm -
2 stops11h 35m
Tue 12/153:03 pm -
1 stop7h 53m
Deal found 11/2![Delta logo]()
$348
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.
Fri 2/197:00 am -
1 stop6h 35m
Sat 2/201:25 am -
Nonstop3h 20m
Deal found 11/4![Southwest logo]()
$319
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 12/92:18 pm -
1 stop8h 43m
Sat 12/125:26 pm -
1 stop5h 37m
Deal found 11/4![American Airlines logo]()
$389
Last-minute flights from Illinois to ArizonaDiscover last-minute flight deals from Illinois to Arizona. Data last updated November 5, 2026 and is based on user searches.
Discover last-minute flight deals from Illinois to Arizona. Data last updated November 5, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 11/5. 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 11/71:52 pm -
Nonstop3h 16m
Wed 11/117:10 am -
Nonstop3h 02m
Deal found 11/5![Allegiant Air logo]()
$253
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 11/141:52 pm -
Nonstop3h 16m
Wed 11/1810:00 am -
Nonstop2h 53m
Deal found 11/1![Allegiant Air logo]()
$172
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 11/141:52 pm -
Nonstop3h 16m
Sat 11/218:10 am -
Nonstop2h 53m
Deal found 11/1![Allegiant Air logo]()
$235
This CheapOair deal was found by Cheapflights users on 11/5. 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 11/182:43 pm -
Nonstop3h 31m
Sat 11/218:10 am -
Nonstop2h 53m
Deal found 11/5![Allegiant Air logo]()
$241
This Kissandfly.com deal was found by Cheapflights users on 11/5. 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 Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/2712:05 pm -
Nonstop4h 10m
Fri 12/410:52 am -
1 stop17h 07m
Deal found 11/5![Frontier logo]()
$252
This CheapOair 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/612:32 pm -
Nonstop3h 32m
Thu 12/107:40 am -
Nonstop3h 02m
Deal found 11/4![Allegiant Air logo]()
$158
This Mytrip 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/126:21 am -
1 stop7h 17m
Mon 12/148:56 am -
2 stops19h 05m
Deal found 11/3![Frontier logo]()
$253
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.
Mon 12/218:47 pm -
Nonstop3h 29m
Mon 12/283:22 pm -
Nonstop2h 59m
Deal found 11/2![Allegiant Air logo]()
$237
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.
Mon 12/218:45 pm -
Nonstop3h 39m
Tue 12/296:40 am -
Nonstop3h 07m
Deal found 11/3![Allegiant Air logo]()
$253
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.
Tue 12/228:35 pm -
1 stop17h 09m
Tue 12/2910:53 pm -
1 stop19h 37m
Deal found 11/2![Frontier logo]()
$254
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 12/237:45 pm -
Nonstop3h 39m
Tue 12/296:40 am -
Nonstop3h 07m
Deal found 11/3![Allegiant Air logo]()
$254
This Cheapflightsfares 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/255:40 am -
1 stop17h 59m
Wed 12/302:17 pm -
Nonstop3h 37m
Deal found 11/3![Frontier logo]()
$254
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 November 5, 2026.
Search for one-way flight options from Illinois to Arizona. Find affordable one-way fares based on user searches. Data last updated November 5, 2026.
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.
Sun 12/612:32 pm -
Nonstop3h 32m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/3![Allegiant Air logo]()
$89
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.
Sat 11/1411:55 am -
Nonstop3h 22m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/3![Allegiant Air logo]()
$99
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 2/207:55 pm -
Nonstop3h 43m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/1![Allegiant Air logo]()
$104
This Cheapflightsfares 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/18:11 pm -
Nonstop3h 29m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/3![Allegiant Air logo]()
$109
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 11/274:58 pm -
1 stop8h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/2![Multiple Airlines logo]()
$114
This WAYA 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 WAYA is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/69:39 pm -
1 stop15h 01m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/3![Multiple Airlines logo]()
$121
This Kiwi.com deal was found by Cheapflights users on 11/5. 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 1/179:19 pm -
Nonstop4h 12m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/5![Frontier logo]()
$129
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.
Sun 11/88:32 pm -
Nonstop3h 22m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/3![Allegiant Air logo]()
$129
This Cheapflightsfares 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/207:45 am -
1 stop8h 09m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/4![Frontier logo]()
$130
This CheapOair 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/308:51 pm -
Nonstop3h 38m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/4![Allegiant Air logo]()
$130
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.
Wed 2/246:01 am -
2 stops27h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/31![Frontier logo]()
$131
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.
Sun 1/101:00 pm -
1 stop8h 14m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/2![Frontier logo]()
$131
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 November 5, 2026.
Round-trip from | $130 (Travelocity) |
|---|---|
One-way from | $89 (Kiwi.com) |
Popular in | November |
Cheapest in | January |
Average price | $375 |
Good round-trip deal | $129 or less |
Good one-way deal | $116 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 November 5, 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
PeoriaPhoenix
PIA Greater Peoria - AZA Phoenix-Mesa Gateway
PIAAZA
Greater Peoria
Sun 12/6
12:32 pm-3:04 pm
Nonstop3h 32m
Phoenix-Mesa Gateway
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$89
MolinePhoenix
MLI Moline Quad-City - AZA Phoenix-Mesa Gateway
MLIAZA
Moline Quad-City
Sat 2/20
7:55 pm-10:38 pm
Nonstop3h 43m
Phoenix-Mesa Gateway
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$104
Quickest round-trip
PeoriaPhoenix
PIA Greater Peoria - AZA Phoenix-Mesa Gateway
PIAAZA
Greater Peoria
Fri 1/1
8:11 pm-10:40 pm
Nonstop3h 29m
Phoenix-Mesa Gateway
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$109
ChicagoPhoenix
ORD Chicago O'Hare Intl - PHX Phoenix Sky Harbor Intl
ORDPHX
Chicago O'Hare Intl
Mon 12/14
7:27 am-3:26 pm
1 stop8h 59m
Phoenix Sky Harbor Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$132
ChicagoPhoenix
RFD Chicago Greater Rockford - AZA Phoenix-Mesa Gateway
RFDAZA
Chicago Greater Rockford
Fri 11/27
1:16 pm-3:54 pm
Nonstop3h 38m
Phoenix-Mesa Gateway
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$136
ChicagoPhoenix
ORD Chicago O'Hare Intl - PHX Phoenix Sky Harbor Intl
ORDPHX
Chicago O'Hare Intl
Wed 12/23
7:58 pm-9:50 am
1 stop14h 52m
Phoenix Sky Harbor Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$137
ChicagoPhoenix
RFD Chicago Greater Rockford - AZA Phoenix-Mesa Gateway
RFDAZA
Chicago Greater Rockford
Wed 11/11
1:13 pm-3:44 pm
Nonstop3h 31m
Phoenix-Mesa Gateway
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$138
ChicagoPhoenix
RFD Chicago Greater Rockford - AZA Phoenix-Mesa Gateway
RFDAZA
Chicago Greater Rockford
Fri 12/18
7:55 pm-10:34 pm
Nonstop3h 39m
Phoenix-Mesa Gateway
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$139
ChicagoPhoenix
MDW Chicago Midway - PHX Phoenix Sky Harbor Intl
MDWPHX
Chicago Midway
Fri 12/18
5:00 am-7:50 am
Nonstop3h 50m
Phoenix Sky Harbor Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$142
ChicagoPhoenix
ORD Chicago O'Hare Intl - PHX Phoenix Sky Harbor Intl
ORDPHX
Chicago O'Hare Intl
Thu 12/17
12:55 pm-3:59 pm
Nonstop4h 04m
Phoenix Sky Harbor Intl
Wed 12/31
12:00 am-1:00 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.
PIA-AZA
MLI-AZA
MLI-PHX
PIA-PHX
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
PIA-AZA
MLI-AZA
MLI-PHX
PIA-PHX
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 $251). Flying from Illinois to Arizona in November is currently the most expensive (average of $373). 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 November 5, 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 afternoon could potentially save you up to 11% 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 November 5, 2026.
The most flights from USIL to USAZ are scheduled on a Wednesday (52 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (31 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 $292 and $467 in November.The cheapest round-trip price found within the last 5 days was $252 on Frontier (Nov 27-Dec 4).
How far ahead should I book a flight from Illinois to Arizona?
Booking 89 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 October 31, 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. Tuesday 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 November 5, 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.
Boarding
8.1
Food
7.0
Overall
8.0
Crew
8.6
Entertainment
7.5
Comfort
8.0
Reviews
1 / 20
10.0
ExcellentSarah,Aug 2024
MDW - AUS
Boarding
8.1
Food
7.0
Overall
8.0
Crew
8.6
Entertainment
7.5
Comfort
8.0
Reviews
1 / 20
10.0
ExcellentSarah,Aug 2024
MDW - AUS
Boarding
8.1
Food
7.0
Overall
8.0
Crew
8.6
Entertainment
7.5
Comfort
8.0
Reviews
1 / 20
10.0
ExcellentSarah,Aug 2024
MDW - AUS
Boarding
8.1
Food
7.0
Overall
8.0
Crew
8.6
Entertainment
7.5
Comfort
8.0
Reviews
1 / 20
10.0
ExcellentSarah,Aug 2024
MDW - AUS
Boarding
8.1
Food
7.0
Overall
8.0
Crew
8.6
Entertainment
7.5
Comfort
8.0
Reviews
1 / 20
10.0
ExcellentSarah,Aug 2024
MDW - AUS
Boarding
8.1
Food
7.0
Overall
8.0
Crew
8.6
Entertainment
7.5
Comfort
8.0
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.
Alternative routes
Complete your trip
Flights by cabin class
Other flight options
Popular flights
Return Flight Options
Top destinations
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 November 5, 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 November 5, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$62 | Average$228 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$108 | Average$327 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$122 | Average$244 | FlexibilityNo cancel fee | On-time88% | |
| Cheapest$188 | Average$286 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$195 | Average$421 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$196 | Average$492 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$217 | Average$393 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$220 | Average$336 | FlexibilityNo cancel fee | On-time75% |