$79+ Cheap flights from Illinois to Phoenix
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/26. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — PHX
Jun 3 — Jun 101
Round-trip
1 adult, Economy
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Find cheap flights from Illinois to Phoenix with Cheapflights
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Cheapest flights from Illinois to PhoenixExplore the most affordable flight options available from Illinois to Phoenix. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 4, 2026.
Explore the most affordable flight options available from Illinois to Phoenix. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 4, 2026.
This Mytrip deal was found by Cheapflights users on 4/30. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/201:04 pm
RFD
- AZA
Nonstop3h 24m
Allegiant Air
Mon 6/223:11 pm
AZA
- RFD
Nonstop3h 09m
Allegiant Air
Deal found 4/30![Allegiant Air logo]()
$197
This Booking.com deal was found by Cheapflights users on 5/2. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/249:37 pm
ORD
- PHX
1 stop12h 07m
Frontier
Tue 6/29:15 am
PHX
- ORD
1 stop11h 46m
Frontier
Deal found 5/2![Frontier logo]()
$198
This Kiwi.com deal was found by Cheapflights users on 5/1. 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 6/178:50 pm
RFD
- AZA
Nonstop3h 24m
Allegiant Air
Wed 6/242:51 pm
AZA
- RFD
Nonstop3h 09m
Allegiant Air
Deal found 5/1![Allegiant Air logo]()
$198
This Cheapflightsfares deal was found by Cheapflights users on 4/30. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/161:59 pm
ORD
- PHX
1 stop10h 27m
Frontier
Tue 5/199:15 am
PHX
- ORD
1 stop11h 46m
Frontier
Deal found 4/30![Frontier logo]()
$199
This Kiwi.com deal was found by Cheapflights users on 5/1. 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 5/208:55 pm
RFD
- AZA
Nonstop3h 35m
Allegiant Air
Fri 5/223:17 pm
AZA
- RFD
Nonstop3h 06m
Allegiant Air
Deal found 5/1![Allegiant Air logo]()
$199
This Kiwi.com deal was found by Cheapflights users on 5/1. 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.
Tue 8/47:15 am
ORD
- PHX
1 stop7h 40m
Frontier
Tue 8/1110:27 pm
PHX
- ORD
1 stop29h 01m
Frontier
Deal found 5/1![Frontier logo]()
$200
This Booking.com deal was found by Cheapflights users on 5/2. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/19:13 pm
RFD
- AZA
Nonstop3h 35m
Allegiant Air
Mon 6/83:11 pm
AZA
- RFD
Nonstop3h 09m
Allegiant Air
Deal found 5/2![Allegiant Air logo]()
$200
This Kiwi.com deal was found by Cheapflights users on 5/1. 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.
Mon 10/51:57 pm
RFD
- AZA
Nonstop3h 31m
Allegiant Air
Sat 10/103:01 pm
AZA
- RFD
Nonstop3h 07m
Allegiant Air
Deal found 5/1![Allegiant Air logo]()
$201
This Mytrip deal was found by Cheapflights users on 5/1. 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.
Mon 5/188:35 pm
RFD
- AZA
Nonstop3h 34m
Allegiant Air
Sat 5/237:05 am
AZA
- RFD
Nonstop3h 06m
Allegiant Air
Deal found 5/1![Allegiant Air logo]()
$202
This Kiwi.com deal was found by Cheapflights users on 5/1. 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.
Fri 6/199:10 pm
RFD
- AZA
Nonstop3h 24m
Allegiant Air
Sat 6/207:05 am
AZA
- RFD
Nonstop3h 09m
Allegiant Air
Deal found 5/1![Allegiant Air logo]()
$203
This Cheapflightsfares deal was found by Cheapflights users on 5/1. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/204:05 pm
ORD
- PHX
1 stop23h 04m
Frontier
Sat 5/237:40 pm
PHX
- ORD
1 stop8h 54m
Frontier
Deal found 5/1![Frontier logo]()
$204
This Kiwi.com deal was found by Cheapflights users on 5/3. 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.
Sat 7/41:03 pm
RFD
- AZA
Nonstop3h 22m
Allegiant Air
Wed 7/82:51 pm
AZA
- RFD
Nonstop3h 08m
Allegiant Air
Deal found 5/3![Allegiant Air logo]()
$204
Best flights from Illinois to PhoenixDiscover carefully curated flight deals from Illinois to Phoenix that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated May 4, 2026.
Discover carefully curated flight deals from Illinois to Phoenix that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated May 4, 2026.
This Mytrip deal was found by Cheapflights users on 4/30. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/201:04 pm
RFD
- AZA
Nonstop3h 24m
Allegiant Air
Mon 6/223:11 pm
AZA
- RFD
Nonstop3h 09m
Allegiant Air
Deal found 4/30![Allegiant Air logo]()
$197
This United Airlines deal was found by Cheapflights users on 5/3. 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.
Tue 6/21:30 pm
ORD
- PHX
Nonstop3h 45m
United Airlines
Tue 6/92:45 pm
PHX
- ORD
Nonstop3h 42m
United Airlines
Deal found 5/3![United Airlines logo]()
$255
This Southwest deal was found by Cheapflights users on 5/2. 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.
Tue 5/267:15 pm
ORD
- PHX
Nonstop3h 55m
Southwest
Fri 5/296:30 pm
PHX
- ORD
Nonstop3h 25m
Southwest
Deal found 5/2![Southwest logo]()
$257
This Delta deal was found by Cheapflights users on 5/2. 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.
Fri 5/296:24 am
ORD
- PHX
1 stop6h 25m
Delta
Fri 5/2910:55 pm
PHX
- ORD
1 stop7h 50m
Delta
Deal found 5/2![Delta logo]()
$275
This American Airlines deal was found by Cheapflights users on 5/3. 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.
Thu 5/286:02 pm
BMI
- PHX
1 stop8h 12m
American Airlines
Wed 6/34:45 pm
PHX
- BMI
1 stop5h 47m
American Airlines
Deal found 5/3![American Airlines logo]()
$329
This Sun Country Air deal was found by Cheapflights users on 5/1. 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 Sun Country Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/297:18 pm
ORD
- AZA
1 stop22h 35m
Sun Country Air
Thu 11/126:04 pm
AZA
- ORD
1 stop23h 21m
Sun Country Air
Deal found 5/1![Sun Country Air logo]()
$350
This Mytrip deal was found by Cheapflights users on 5/3. 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.
Mon 6/19:13 pm
RFD
- AZA
Nonstop3h 35m
Allegiant Air
Mon 6/83:11 pm
AZA
- RFD
Nonstop3h 09m
Allegiant Air
Deal found 5/3![Allegiant Air logo]()
$200
This Kiwi.com deal was found by Cheapflights users on 5/3. 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.
Sat 5/238:21 pm
SPI
- PHX
2 stops17h 49m
Multiple Airlines
Tue 5/2612:20 am
PHX
- SPI
1 stop16h 31m
Multiple Airlines
Deal found 5/3![Multiple Airlines logo]()
$401
This Mytrip deal was found by Cheapflights users on 5/3. 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.
Fri 7/39:13 pm
RFD
- AZA
Nonstop3h 22m
Allegiant Air
Mon 7/63:15 pm
AZA
- RFD
Nonstop3h 08m
Allegiant Air
Deal found 5/3![Allegiant Air logo]()
$203
This Kiwi.com deal was found by Cheapflights users on 5/1. 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 5/231:01 pm
RFD
- AZA
Nonstop3h 35m
Allegiant Air
Wed 5/272:59 pm
AZA
- RFD
Nonstop3h 06m
Allegiant Air
Deal found 5/1![Allegiant Air logo]()
$207
This Southwest deal was found by Cheapflights users on 5/2. 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.
Wed 5/277:15 pm
ORD
- PHX
Nonstop3h 55m
Southwest
Sat 5/304:55 pm
PHX
- ORD
Nonstop3h 25m
Southwest
Deal found 5/2![Southwest logo]()
$271
This Kiwi.com deal was found by Cheapflights users on 5/3. 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.
Sat 5/231:01 pm
RFD
- AZA
Nonstop3h 35m
Allegiant Air
Fri 5/293:17 pm
AZA
- RFD
Nonstop3h 06m
Allegiant Air
Deal found 5/3![Allegiant Air logo]()
$209
This United Airlines deal was found by Cheapflights users on 5/1. 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.
Mon 6/19:43 pm
ORD
- PHX
Nonstop3h 54m
United Airlines
Sat 6/61:31 pm
PHX
- ORD
1 stop7h 18m
United Airlines
Deal found 5/1![United Airlines logo]()
$281
This Delta deal was found by Cheapflights users on 5/2. 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.
Thu 5/281:59 pm
MDW
- PHX
1 stop8h 11m
Delta
Sat 5/306:05 am
PHX
- MDW
1 stop5h 14m
Delta
Deal found 5/2![Delta logo]()
$291
This Kiwi.com deal was found by Cheapflights users on 5/2. 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 5/88:35 pm
RFD
- AZA
Nonstop3h 34m
Allegiant Air
Fri 5/223:17 pm
AZA
- RFD
Nonstop3h 06m
Allegiant Air
Deal found 5/2![Allegiant Air logo]()
$211
This Southwest deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/145:25 am
MDW
- PHX
Nonstop3h 35m
Southwest
Sat 6/2011:55 pm
PHX
- MDW
Nonstop3h 15m
Southwest
Deal found 4/29![Southwest logo]()
$286
This United Airlines deal was found by Cheapflights users on 5/1. 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.
Mon 6/229:43 pm
ORD
- PHX
Nonstop3h 54m
United Airlines
Sat 6/271:28 pm
PHX
- ORD
Nonstop3h 42m
United Airlines
Deal found 5/1![United Airlines logo]()
$286
This Delta deal was found by Cheapflights users on 5/1. 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 5/231:59 pm
MDW
- PHX
1 stop8h 11m
Delta
Tue 5/269:39 am
PHX
- MDW
1 stop6h 17m
Delta
Deal found 5/1![Delta logo]()
$293
This Southwest deal was found by Cheapflights users on 5/2. 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.
Tue 6/166:45 am
MDW
- PHX
Nonstop3h 40m
Southwest
Tue 6/236:50 pm
PHX
- MDW
Nonstop3h 15m
Southwest
Deal found 5/2![Southwest logo]()
$286
This Kiwi.com deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/41:03 pm
RFD
- AZA
Nonstop3h 22m
Allegiant Air
Mon 7/63:15 pm
AZA
- RFD
Nonstop3h 08m
Allegiant Air
Deal found 4/29![Allegiant Air logo]()
$220
This Delta deal was found by Cheapflights users on 4/30. 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.
Sat 6/65:30 pm
MDW
- PHX
1 stop7h 06m
Delta
Tue 6/99:43 am
PHX
- MDW
1 stop6h 35m
Delta
Deal found 4/30![Delta logo]()
$293
This United Airlines deal was found by Cheapflights users on 5/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/285:00 am
ORD
- PHX
1 stop6h 00m
United Airlines
Wed 7/15:49 pm
PHX
- ORD
Nonstop3h 42m
United Airlines
Deal found 5/2![United Airlines logo]()
$296
This Sun Country Air deal was found by Cheapflights users on 5/3. 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 Sun Country Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/297:18 pm
ORD
- AZA
1 stop22h 35m
Sun Country Air
Sun 11/15:34 pm
AZA
- ORD
1 stop16h 07m
Sun Country Air
Deal found 5/3![Sun Country Air logo]()
$360
This Southwest deal was found by Cheapflights users on 4/30. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/295:20 am
MDW
- PHX
Nonstop3h 35m
Southwest
Tue 7/286:50 pm
PHX
- MDW
Nonstop3h 15m
Southwest
Deal found 4/30![Southwest logo]()
$286
This American Airlines deal was found by Cheapflights users on 5/1. 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.
Sat 5/165:00 am
BMI
- PHX
1 stop6h 06m
American Airlines
Wed 5/206:02 am
PHX
- BMI
1 stop7h 13m
American Airlines
Deal found 5/1![American Airlines logo]()
$399
This Mytrip deal was found by Cheapflights users on 5/1. 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.
Fri 5/229:13 pm
RFD
- AZA
Nonstop3h 35m
Allegiant Air
Mon 5/253:17 pm
AZA
- RFD
Nonstop3h 06m
Allegiant Air
Deal found 5/1![Allegiant Air logo]()
$226
This United Airlines deal was found by Cheapflights users on 5/4. 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.
Fri 6/58:30 pm
ORD
- PHX
Nonstop3h 57m
United Airlines
Mon 6/85:49 pm
PHX
- ORD
Nonstop3h 42m
United Airlines
Deal found 5/4![United Airlines logo]()
$302
This Delta deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/33:55 pm
ORD
- PHX
1 stop6h 15m
Delta
Fri 7/101:20 pm
PHX
- ORD
1 stop6h 28m
Delta
Deal found 4/29![Delta logo]()
$306
This Sun Country Air deal was found by Cheapflights users on 4/30. 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 Sun Country Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/87:45 pm
ORD
- AZA
1 stop21h 53m
Sun Country Air
Sun 10/113:53 pm
AZA
- ORD
1 stop16h 45m
Sun Country Air
Deal found 4/30![Sun Country Air logo]()
$375
This Southwest deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/266:10 am
MDW
- PHX
Nonstop3h 45m
Southwest
Wed 6/106:50 pm
PHX
- MDW
Nonstop3h 15m
Southwest
Deal found 4/29![Southwest logo]()
$288
Last-minute flights from Illinois to PhoenixDiscover last-minute flight deals from Illinois to Phoenix. Data last updated May 4, 2026 and is based on user searches.
Discover last-minute flight deals from Illinois to Phoenix. Data last updated May 4, 2026 and is based on user searches.
This Cheapflightsfares deal was found by Cheapflights users on 4/30. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/161:59 pm
ORD
- PHX
1 stop10h 27m
Frontier
Tue 5/199:15 am
PHX
- ORD
1 stop11h 46m
Frontier
Deal found 4/30![Frontier logo]()
$199
This Frontier deal was found by Cheapflights users on 4/30. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/161:59 pm
ORD
- PHX
1 stop10h 27m
Frontier
Sat 5/239:15 am
PHX
- ORD
1 stop11h 46m
Frontier
Deal found 4/30![Frontier logo]()
$205
This Mytrip deal was found by Cheapflights users on 5/1. 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.
Mon 5/188:35 pm
RFD
- AZA
Nonstop3h 34m
Allegiant Air
Sat 5/237:05 am
AZA
- RFD
Nonstop3h 06m
Allegiant Air
Deal found 5/1![Allegiant Air logo]()
$202
This Kiwi.com deal was found by Cheapflights users on 5/1. 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 5/208:55 pm
RFD
- AZA
Nonstop3h 35m
Allegiant Air
Fri 5/223:17 pm
AZA
- RFD
Nonstop3h 06m
Allegiant Air
Deal found 5/1![Allegiant Air logo]()
$199
This Cheapflightsfares deal was found by Cheapflights users on 5/1. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/204:05 pm
ORD
- PHX
1 stop23h 04m
Frontier
Sat 5/237:40 pm
PHX
- ORD
1 stop8h 54m
Frontier
Deal found 5/1![Frontier logo]()
$204
This Kiwi.com deal was found by Cheapflights users on 5/1. 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.
Fri 5/229:13 pm
RFD
- AZA
Nonstop3h 35m
Allegiant Air
Wed 5/272:59 pm
AZA
- RFD
Nonstop3h 06m
Allegiant Air
Deal found 5/1![Allegiant Air logo]()
$207
This Booking.com deal was found by Cheapflights users on 5/2. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/231:01 pm
RFD
- AZA
Nonstop3h 35m
Allegiant Air
Wed 5/272:59 pm
AZA
- RFD
Nonstop3h 06m
Allegiant Air
Deal found 5/2![Allegiant Air logo]()
$206
This Kiwi.com deal was found by Cheapflights users on 5/2. 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.
Sat 5/231:50 pm
ORD
- PHX
1 stop10h 36m
Frontier
Thu 5/287:40 pm
PHX
- ORD
1 stop8h 54m
Frontier
Deal found 5/2![Frontier logo]()
$207
This Kiwi.com deal was found by Cheapflights users on 5/3. 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.
Sat 5/231:01 pm
RFD
- AZA
Nonstop3h 35m
Allegiant Air
Fri 5/293:17 pm
AZA
- RFD
Nonstop3h 06m
Allegiant Air
Deal found 5/3![Allegiant Air logo]()
$209
This Booking.com deal was found by Cheapflights users on 5/2. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/249:37 pm
ORD
- PHX
1 stop12h 07m
Frontier
Tue 6/29:15 am
PHX
- ORD
1 stop11h 46m
Frontier
Deal found 5/2![Frontier logo]()
$198
This eDestinos deal was found by Cheapflights users on 5/1. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/269:37 pm
ORD
- PHX
1 stop14h 28m
Frontier
Sat 6/68:40 am
PHX
- ORD
1 stop9h 52m
Frontier
Deal found 5/1![Frontier logo]()
$208
This Cheapflightsfares deal was found by Cheapflights users on 4/30. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/305:11 pm
ORD
- PHX
1 stop19h 34m
Frontier
Sat 6/65:15 am
PHX
- ORD
1 stop13h 17m
Frontier
Deal found 4/30![Frontier logo]()
$209
One-way flights from Illinois to PhoenixSearch for one-way flight options from Illinois to Phoenix. Find affordable one-way fares based on user searches. Data last updated May 4, 2026.
Search for one-way flight options from Illinois to Phoenix. Find affordable one-way fares based on user searches. Data last updated May 4, 2026.
This Super.com deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/266:51 pm
STL
- PHX
1 stop6h 33m
Frontier
Deal found 4/29![Frontier logo]()
$79
This CheapOair deal was found by Cheapflights users on 4/30. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/236:30 pm
STL
- PHX
1 stop6h 54m
Frontier
Deal found 4/30![Frontier logo]()
$80
This Kiwi.com deal was found by Cheapflights users on 5/1. 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.
Tue 6/306:31 pm
STL
- PHX
1 stop29h 49m
Frontier
Deal found 5/1![Frontier logo]()
$83
This Kiwi.com deal was found by Cheapflights users on 5/2. 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 6/107:04 pm
STL
- PHX
1 stop6h 00m
Frontier
Deal found 5/2![Frontier logo]()
$84
This Kiwi.com deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/238:08 pm
STL
- PHX
1 stop16h 08m
Frontier
Deal found 4/29![Frontier logo]()
$88
This Kiwi.com deal was found by Cheapflights users on 4/30. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/23:07 pm
MDW
- PHX
1 stop23h 03m
Frontier
Deal found 4/30![Frontier logo]()
$98
This Kiwi.com deal was found by Cheapflights users on 5/1. 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.
Fri 5/88:35 pm
RFD
- AZA
Nonstop3h 34m
Allegiant Air
Deal found 5/1![Allegiant Air logo]()
$98
This Kiwi.com deal was found by Cheapflights users on 5/2. 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 6/19:13 pm
RFD
- AZA
Nonstop3h 35m
Allegiant Air
Deal found 5/2![Allegiant Air logo]()
$99
This Cheapflightsfares deal was found by Cheapflights users on 4/30. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/161:59 pm
ORD
- PHX
1 stop10h 27m
Frontier
Deal found 4/30![Frontier logo]()
$100
This Trip.com deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/299:37 pm
ORD
- PHX
1 stop12h 07m
Frontier
Deal found 4/29![Frontier logo]()
$103
This Super.com deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/208:55 pm
RFD
- AZA
Nonstop3h 35m
Allegiant Air
Deal found 4/29![Allegiant Air logo]()
$103
This Kiwi.com deal was found by Cheapflights users on 5/1. 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 5/2712:04 pm
MDW
- PHX
1 stop10h 29m
Frontier
Deal found 5/1![Frontier logo]()
$104
Find flight deals from Illinois to Phoenix
Keep the following information in mind while searching for Illinois to Phoenix flight deals. Data was last updated May 4, 2026.
Round-trip from | $197 (Mytrip) |
|---|---|
One-way from | $79 (Super.com) |
Popular in | March |
Cheapest in | August |
Average price | $296 |
Cheapflights Fare Finder
Customize your flight search to find flights from Illinois to Phoenix that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated May 4, 2026.
Use the filters below to find and compare flights from Illinois to Phoenix that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
ChicagoPhoenix
RFD - AZA
RFDAZA
Chicago Greater Rockford
Sat 6/20
1:04 pm-2:28 pm
Nonstop3h 24m
Phoenix-Mesa Gateway
Mon 6/22
3:11 pm-8:20 pm
Nonstop3h 09m
$197
ChicagoPhoenix
RFD - AZA
RFDAZA
Chicago Greater Rockford
Mon 6/1
9:13 pm-10:48 pm
Nonstop3h 35m
Phoenix-Mesa Gateway
Mon 6/8
3:11 pm-8:20 pm
Nonstop3h 09m
$200
Quickest round-trip
ChicagoPhoenix
RFD - AZA
RFDAZA
Chicago Greater Rockford
Fri 7/3
9:13 pm-10:35 pm
Nonstop3h 22m
Phoenix-Mesa Gateway
Mon 7/6
3:15 pm-8:23 pm
Nonstop3h 08m
$203
ChicagoPhoenix
RFD - AZA
RFDAZA
Chicago Greater Rockford
Sat 5/23
1:01 pm-2:36 pm
Nonstop3h 35m
Phoenix-Mesa Gateway
Wed 5/27
2:59 pm-8:05 pm
Nonstop3h 06m
$207
ChicagoPhoenix
RFD - AZA
RFDAZA
Chicago Greater Rockford
Sat 5/23
1:01 pm-2:36 pm
Nonstop3h 35m
Phoenix-Mesa Gateway
Fri 5/29
3:17 pm-8:23 pm
Nonstop3h 06m
$209
ChicagoPhoenix
RFD - AZA
RFDAZA
Chicago Greater Rockford
Fri 5/8
8:35 pm-10:09 pm
Nonstop3h 34m
Phoenix-Mesa Gateway
Fri 5/22
3:17 pm-8:23 pm
Nonstop3h 06m
$211
ChicagoPhoenix
RFD - AZA
RFDAZA
Chicago Greater Rockford
Sat 7/4
1:03 pm-2:25 pm
Nonstop3h 22m
Phoenix-Mesa Gateway
Mon 7/6
3:15 pm-8:23 pm
Nonstop3h 08m
$220
ChicagoPhoenix
RFD - AZA
RFDAZA
Chicago Greater Rockford
Fri 5/22
9:13 pm-10:48 pm
Nonstop3h 35m
Phoenix-Mesa Gateway
Mon 5/25
3:17 pm-8:23 pm
Nonstop3h 06m
$226
ChicagoPhoenix
ORD - PHX
ORDPHX
Chicago O'Hare Intl
Tue 6/2
1:30 pm-3:15 pm
Nonstop3h 45m
Phoenix Sky Harbor Intl
Tue 6/9
2:45 pm-8:27 pm
Nonstop3h 42m
$255
ChicagoPhoenix
ORD - PHX
ORDPHX
Chicago O'Hare Intl
Tue 5/26
7:15 pm-9:10 pm
Nonstop3h 55m
Phoenix Sky Harbor Intl
Fri 5/29
6:30 pm-11:55 pm
Nonstop3h 25m
$257
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Illinois to Phoenix
Have a flexible travel schedule? Discover the best time to fly to Phoenix from Illinois with our price prediction graph.
RFD-AZA
ORD-PHX
BMI-PHX
ORD-AZA
SPI-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 Phoenix
USIL-PH1
RFD-AZA
ORD-PHX
BMI-PHX
ORD-AZA
How far ahead should I book a flight from Illinois to Phoenix?
To ensure you get the cheapest price possible for a flight from Illinois to Phoenix, you should look to book at least 80 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
What is the cheapest month to book a flight from Illinois to Phoenix?
Currently, January is the cheapest month in which you can book a flight from Illinois to Phoenix (average of $225). Flying from Illinois to Phoenix in December is currently the most expensive (average of $374). 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 PHX?
Find hourly flight availability from Illinois to Phoenix. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated May 4, 2026.
When flying from Illinois to Phoenix, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 16% versus a flight in the morning.
What is the cheapest day to fly from Illinois to Phoenix?
Use this chart to determine the cheapest time to fly round-trip from Illinois to Phoenix. Price data was last updated on May 2, 2026.
Travelers seeking maximum savings on their Illinois to Phoenix flight should consider departing on Tuesday evenings 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.
Weekly flight availability from Illinois to Phoenix
Explore weekly flight availability from Illinois to Phoenix. 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 May 4, 2026.
The most flights from USIL to PH1 are scheduled on a Monday (57 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (40 on average).
How much does it cost to fly round-trip from Illinois to Phoenix?
Related info for your journey
Find useful and relevant information for your journey from Illinois to Phoenix. 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 Phoenix
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Phoenix by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Illinois to Phoenix by cabin class
Find flights from Illinois to Phoenix, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Illinois and Phoenix flights
Browse other Illinois and Phoenix flight options. Last updated on May 4, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Illinois to Phoenix flights
Consider these flights traveling from Illinois to Phoenix.
Top 8 airlines flying from Illinois to Phoenix
Discover the top 8 airlines that operate flights from Illinois to Phoenix. 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 2,558,603 searches. Data last updated May 4, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$66 | Average$226 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$79 | Average$232 | FlexibilityNo cancel fee | On-time88% | |
| Cheapest$108 | Average$286 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$154 | Average$251 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$183 | Average$417 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$188 | Average$328 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$194 | Average$412 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$201 | Average$328 | FlexibilityNo cancel fee | On-time63% |