$89+ Cheap flights from Illinois to Mesa, AZ
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 7/13. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — PHX
Jul 15 — Jul 221
Round-trip
1 adult, Economy
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Find cheap flights from Illinois to Mesa with Cheapflights
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Cheapest flights from Illinois to MesaExplore the most affordable flight options available from Illinois to Mesa. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 15, 2026.
Explore the most affordable flight options available from Illinois to Mesa. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 15, 2026.
This Cheapflightsfares deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” 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 10/224:00 pm
ORD
- PHX
Nonstop3h 59m
Frontier
Tue 10/276:40 am
PHX
- ORD
1 stop25h 21m
Frontier
Deal found 6/10![Frontier logo]()
$237
This Delta deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” 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 10/195:35 pm
MDW
- PHX
1 stop7h 39m
Delta
Sat 10/246:25 am
PHX
- MDW
1 stop8h 25m
Delta
Deal found 6/10![Delta logo]()
$238
This Delta deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” 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 8/157:48 am
ORD
- PHX
1 stop6h 18m
Delta
Thu 8/2011:05 pm
PHX
- ORD
1 stop6h 51m
Delta
Deal found 6/10![Delta logo]()
$238
This Southwest deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” 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 9/105:40 am
MDW
- PHX
Nonstop3h 35m
Southwest
Mon 9/148:00 am
PHX
- MDW
1 stop4h 35m
Southwest
Deal found 6/11![Southwest logo]()
$239
This Kiwi.com deal was found by Cheapflights users on 6/14. 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.
Thu 8/137:10 pm
STL
- PHX
2 stops22h 43m
Frontier
Wed 8/1910:27 pm
PHX
- STL
1 stop19h 09m
Frontier
Deal found 6/14![Frontier logo]()
$239
This Frontier deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” 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.
Wed 7/1512:11 pm
MDW
- PHX
1 stop9h 33m
Frontier
Wed 8/511:23 pm
PHX
- MDW
1 stop8h 28m
Frontier
Deal found 6/11![Frontier logo]()
$240
This Cheapflightsfares deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” 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 10/94:00 pm
ORD
- PHX
Nonstop3h 59m
Frontier
Tue 10/138:16 am
PHX
- ORD
1 stop23h 45m
Frontier
Deal found 6/11![Frontier logo]()
$240
This Kiwi.com deal was found by Cheapflights users on 6/12. 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.
Wed 7/297:03 pm
STL
- PHX
1 stop18h 24m
Frontier
Tue 8/49:04 am
PHX
- STL
2 stops21h 53m
Frontier
Deal found 6/12![Frontier logo]()
$240
This Delta deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” 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 8/139:24 am
MDW
- PHX
1 stop6h 26m
Delta
Mon 8/1711:05 pm
PHX
- MDW
1 stop8h 12m
Delta
Deal found 6/10![Delta logo]()
$241
This Delta deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” 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 8/131:59 pm
ORD
- PHX
1 stop9h 33m
Delta
Mon 8/1711:05 pm
PHX
- ORD
1 stop6h 51m
Delta
Deal found 6/10![Delta logo]()
$241
This Kiwi.com deal was found by Cheapflights users on 6/14. 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.
Thu 8/136:34 pm
STL
- PHX
1 stop27h 10m
Frontier
Tue 8/187:45 am
PHX
- STL
1 stop8h 23m
Frontier
Deal found 6/14![Frontier logo]()
$241
This Frontier deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” 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 8/1011:06 am
MDW
- PHX
1 stop10h 38m
Frontier
Fri 8/1411:23 pm
PHX
- MDW
1 stop8h 28m
Frontier
Deal found 6/10![Frontier logo]()
$242
Best flights from Illinois to MesaDiscover carefully curated flight deals from Illinois to Mesa that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 15, 2026.
Discover carefully curated flight deals from Illinois to Mesa that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 15, 2026.
This Delta deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” 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 10/295:35 pm
MDW
- PHX
1 stop7h 39m
Delta
Mon 11/211:55 pm
PHX
- MDW
1 stop8h 57m
Delta
Deal found 6/10![Delta logo]()
$241
This Alaska Airlines deal was found by Cheapflights users on 6/13. 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 9/56:01 am
ORD
- PHX
1 stop7h 30m
Alaska Airlines
Tue 9/87:08 am
PHX
- ORD
1 stop10h 13m
Alaska Airlines
Deal found 6/13![Alaska Airlines logo]()
$255
This Southwest deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” 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 11/36:00 am
STL
- PHX
Nonstop3h 25m
Southwest
Tue 11/106:50 am
PHX
- STL
1 stop5h 35m
Southwest
Deal found 6/11![Southwest logo]()
$259
This United Airlines deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” 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 10/58:30 pm
ORD
- PHX
Nonstop3h 54m
United Airlines
Sun 10/114:49 pm
PHX
- ORD
Nonstop3h 39m
United Airlines
Deal found 6/11![United Airlines logo]()
$269
This American Airlines deal was found by Cheapflights users on 6/14. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/2312:20 pm
PIA
- PHX
1 stop8h 27m
American Airlines
Mon 10/2612:24 am
PHX
- PIA
1 stop6h 38m
American Airlines
Deal found 6/14![American Airlines logo]()
$431
This Delta deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” 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 10/307:40 pm
ORD
- PHX
1 stop5h 34m
Delta
Wed 11/43:05 pm
PHX
- ORD
1 stop5h 29m
Delta
Deal found 6/10![Delta logo]()
$244
This Alaska Airlines deal was found by Cheapflights users on 6/14. 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.
Tue 9/297:20 am
ORD
- PHX
1 stop9h 13m
Alaska Airlines
Sat 10/32:45 pm
PHX
- ORD
1 stop7h 14m
Alaska Airlines
Deal found 6/14![Alaska Airlines logo]()
$255
This United Airlines deal was found by Cheapflights users on 6/12. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/3010:25 am
ORD
- PHX
Nonstop4h 01m
United Airlines
Tue 7/144:12 pm
PHX
- ORD
1 stop6h 33m
United Airlines
Deal found 6/12![United Airlines logo]()
$270
This Alaska Airlines deal was found by Cheapflights users on 6/14. 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.
Wed 10/142:21 pm
ORD
- PHX
1 stop8h 20m
Alaska Airlines
Sat 10/1710:12 am
PHX
- ORD
1 stop6h 41m
Alaska Airlines
Deal found 6/14![Alaska Airlines logo]()
$255
This Southwest deal was found by Cheapflights users on 6/14. 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 9/163:15 pm
MDW
- PHX
Nonstop3h 35m
Southwest
Sat 9/1912:35 am
PHX
- MDW
Nonstop3h 15m
Southwest
Deal found 6/14![Southwest logo]()
$281
This United Airlines deal was found by Cheapflights users on 6/14. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/304:02 pm
ORD
- PHX
Nonstop3h 51m
United Airlines
Tue 7/710:06 am
PHX
- ORD
1 stop6h 59m
United Airlines
Deal found 6/14![United Airlines logo]()
$270
This Delta deal was found by Cheapflights users on 6/14. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/11:26 pm
MDW
- PHX
1 stop6h 34m
Delta
Wed 7/811:04 pm
PHX
- MDW
1 stop8h 09m
Delta
Deal found 6/14![Delta logo]()
$280
This Southwest deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” 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 9/178:00 am
MDW
- PHX
1 stop5h 50m
Southwest
Sat 9/1912:35 am
PHX
- MDW
Nonstop3h 15m
Southwest
Deal found 6/10![Southwest logo]()
$287
This United Airlines deal was found by Cheapflights users on 6/13. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/19:02 am
ORD
- PHX
Nonstop4h 01m
United Airlines
Sat 7/41:28 pm
PHX
- ORD
Nonstop3h 42m
United Airlines
Deal found 6/13![United Airlines logo]()
$275
This Alaska Airlines deal was found by Cheapflights users on 6/12. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/222:18 pm
ORD
- PHX
1 stop6h 49m
Alaska Airlines
Sun 9/277:08 am
PHX
- ORD
1 stop10h 13m
Alaska Airlines
Deal found 6/12![Alaska Airlines logo]()
$276
This Delta deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” 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 10/299:30 am
MDW
- PHX
1 stop6h 32m
Delta
Sat 10/3112:55 am
PHX
- MDW
1 stop6h 54m
Delta
Deal found 6/11![Delta logo]()
$289
This Southwest deal was found by Cheapflights users on 6/14. 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.
Thu 9/35:40 am
MDW
- PHX
Nonstop3h 35m
Southwest
Wed 9/1612:35 am
PHX
- MDW
Nonstop3h 15m
Southwest
Deal found 6/14![Southwest logo]()
$293
This United Airlines deal was found by Cheapflights users on 6/14. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/217:37 pm
ORD
- PHX
Nonstop3h 52m
United Airlines
Thu 10/14:15 pm
PHX
- ORD
1 stop6h 08m
United Airlines
Deal found 6/14![United Airlines logo]()
$279
This Alaska Airlines deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” 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 8/306:01 am
ORD
- PHX
1 stop7h 30m
Alaska Airlines
Mon 8/313:15 pm
PHX
- ORD
1 stop6h 44m
Alaska Airlines
Deal found 6/10![Alaska Airlines logo]()
$281
This Southwest deal was found by Cheapflights users on 6/12. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/44:55 pm
MDW
- PHX
Nonstop3h 40m
Southwest
Sun 9/612:35 am
PHX
- MDW
Nonstop3h 15m
Southwest
Deal found 6/12![Southwest logo]()
$293
This United Airlines deal was found by Cheapflights users on 6/12. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/277:00 am
ORD
- PHX
Nonstop3h 47m
United Airlines
Fri 10/3012:50 pm
PHX
- ORD
Nonstop3h 30m
United Airlines
Deal found 6/12![United Airlines logo]()
$281
This Southwest deal was found by Cheapflights users on 6/12. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/410:10 am
MDW
- PHX
1 stop4h 55m
Southwest
Fri 8/1412:35 am
PHX
- MDW
Nonstop3h 15m
Southwest
Deal found 6/12![Southwest logo]()
$299
This Delta deal was found by Cheapflights users on 6/13. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/204:00 pm
BMI
- PHX
1 stop6h 45m
Delta
Sat 10/246:05 am
PHX
- BMI
1 stop7h 11m
Delta
Deal found 6/13![Delta logo]()
$329
This American Airlines deal was found by Cheapflights users on 6/13. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/15:00 am
SPI
- PHX
1 stop6h 09m
American Airlines
Wed 8/53:55 pm
PHX
- SPI
1 stop6h 12m
American Airlines
Deal found 6/13![American Airlines logo]()
$451
This Southwest deal was found by Cheapflights users on 6/14. 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.
Mon 10/269:55 am
MDW
- PHX
1 stop5h 10m
Southwest
Thu 10/297:50 am
PHX
- MDW
Nonstop3h 15m
Southwest
Deal found 6/14![Southwest logo]()
$299
This Delta deal was found by Cheapflights users on 6/13. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/244:00 pm
BMI
- PHX
1 stop9h 06m
Delta
Tue 10/277:05 am
PHX
- BMI
1 stop6h 11m
Delta
Deal found 6/13![Delta logo]()
$329
This American Airlines deal was found by Cheapflights users on 6/12. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/126:08 am
SPI
- PHX
2 stops10h 39m
American Airlines
Wed 8/193:55 pm
PHX
- SPI
1 stop6h 12m
American Airlines
Deal found 6/12![American Airlines logo]()
$456
This Delta deal was found by Cheapflights users on 6/13. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/194:00 pm
BMI
- PHX
1 stop9h 06m
Delta
Wed 10/2811:55 pm
PHX
- BMI
1 stop9h 22m
Delta
Deal found 6/13![Delta logo]()
$329
This Southwest deal was found by Cheapflights users on 6/13. 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.
Fri 11/134:30 pm
MDW
- PHX
1 stop6h 05m
Southwest
Fri 11/131:35 am
PHX
- MDW
Nonstop3h 10m
Southwest
Deal found 6/13![Southwest logo]()
$303
This American Airlines deal was found by Cheapflights users on 6/14. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/316:00 am
SPI
- PHX
1 stop7h 58m
American Airlines
Wed 8/53:55 pm
PHX
- SPI
1 stop6h 12m
American Airlines
Deal found 6/14![American Airlines logo]()
$481
Last-minute flights from Illinois to MesaDiscover last-minute flight deals from Illinois to Mesa. Data last updated June 15, 2026 and is based on user searches.
Discover last-minute flight deals from Illinois to Mesa. Data last updated June 15, 2026 and is based on user searches.
This Frontier deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” 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 7/411:59 am
MDW
- PHX
1 stop12h 21m
Frontier
Sat 7/119:50 pm
PHX
- MDW
1 stop11h 17m
Frontier
Deal found 6/10![Frontier logo]()
$243
This Kiwi.com deal was found by Cheapflights users on 6/13. 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.
Tue 7/78:08 pm
STL
- PHX
1 stop16h 03m
Frontier
Mon 7/202:16 pm
PHX
- STL
2 stops25h 49m
Frontier
Deal found 6/13![Frontier logo]()
$239
This Kiwi.com deal was found by Cheapflights users on 6/12. 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.
Mon 7/137:10 pm
STL
- PHX
1 stop19h 49m
Frontier
Mon 7/209:58 pm
PHX
- STL
1 stop18h 07m
Frontier
Deal found 6/12![Frontier logo]()
$244
This Kiwi.com deal was found by Cheapflights users on 6/14. 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.
Mon 7/137:10 pm
STL
- PHX
1 stop19h 49m
Frontier
Thu 7/167:45 am
PHX
- STL
1 stop8h 30m
Frontier
Deal found 6/14![Frontier logo]()
$245
This Trip.com deal was found by Cheapflights users on 6/14. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/146:20 am
ORD
- PHX
1 stop8h 03m
Alaska Airlines
Wed 7/151:05 pm
PHX
- ORD
1 stop8h 31m
Alaska Airlines
Deal found 6/14![Alaska Airlines logo]()
$242
This American Airlines deal was found by Cheapflights users on 6/12. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/147:25 am
ORD
- PHX
Nonstop3h 44m
American Airlines
Wed 7/155:38 pm
PHX
- ORD
Nonstop3h 52m
American Airlines
Deal found 6/12![American Airlines logo]()
$245
This Frontier deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” 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.
Wed 7/1512:11 pm
MDW
- PHX
1 stop9h 33m
Frontier
Wed 8/511:23 pm
PHX
- MDW
1 stop8h 28m
Frontier
Deal found 6/11![Frontier logo]()
$240
This Southwest deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” 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 7/2812:20 pm
MDW
- PHX
1 stop4h 45m
Southwest
Tue 8/49:00 am
PHX
- MDW
1 stop5h 30m
Southwest
Deal found 6/10![Southwest logo]()
$242
This Kiwi.com deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” 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 7/289:57 pm
ORD
- PHX
1 stop16h 43m
Frontier
Tue 8/49:04 am
PHX
- ORD
1 stop13h 45m
Frontier
Deal found 6/10![Frontier logo]()
$243
This Kiwi.com deal was found by Cheapflights users on 6/12. 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.
Wed 7/297:03 pm
STL
- PHX
1 stop18h 24m
Frontier
Tue 8/49:04 am
PHX
- STL
2 stops21h 53m
Frontier
Deal found 6/12![Frontier logo]()
$240
This Southwest deal was found by Cheapflights users on 6/14. 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 7/295:25 am
MDW
- PHX
Nonstop3h 35m
Southwest
Tue 8/43:50 pm
PHX
- MDW
Nonstop3h 15m
Southwest
Deal found 6/14![Southwest logo]()
$245
This American Airlines deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” 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 7/318:54 pm
ORD
- PHX
Nonstop3h 42m
American Airlines
Tue 8/47:00 am
PHX
- ORD
Nonstop3h 51m
American Airlines
Deal found 6/10![American Airlines logo]()
$247
One-way flights from Illinois to MesaSearch for one-way flight options from Illinois to Mesa. Find affordable one-way fares based on user searches. Data last updated June 15, 2026.
Search for one-way flight options from Illinois to Mesa. Find affordable one-way fares based on user searches. Data last updated June 15, 2026.
This Kiwi.com deal was found by Cheapflights users on 6/13. 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.
Mon 7/137:10 pm
STL
- PHX
1 stop19h 49m
Frontier
Deal found 6/13![Frontier logo]()
$89
This Kiwi.com deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” 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 8/178:08 pm
STL
- PHX
1 stop15h 54m
Frontier
Deal found 6/11![Frontier logo]()
$102
This Kiwi.com deal was found by Cheapflights users on 6/12. 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 8/97:10 pm
STL
- PHX
1 stop18h 17m
Frontier
Deal found 6/12![Frontier logo]()
$103
This Kiwi.com deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” 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 8/108:08 pm
STL
- PHX
1 stop19h 09m
Frontier
Deal found 6/10![Frontier logo]()
$104
This Kiwi.com deal was found by Cheapflights users on 6/12. 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.
Fri 7/107:10 pm
STL
- PHX
1 stop18h 17m
Frontier
Deal found 6/12![Frontier logo]()
$105
This Kiwi.com deal was found by Cheapflights users on 6/12. 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 7/197:10 pm
STL
- PHX
1 stop18h 17m
Frontier
Deal found 6/12![Frontier logo]()
$106
This Kiwi.com deal was found by Cheapflights users on 6/12. 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.
Mon 7/67:10 pm
STL
- PHX
1 stop19h 49m
Frontier
Deal found 6/12![Frontier logo]()
$107
This Kiwi.com deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” 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 9/88:08 pm
STL
- PHX
1 stop20h 27m
Frontier
Deal found 6/11![Frontier logo]()
$112
This Kiwi.com deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” 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 8/113:41 pm
STL
- PHX
2 stops20h 30m
Frontier
Deal found 6/11![Frontier logo]()
$119
This Frontier deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” 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.
Tue 8/47:03 pm
STL
- PHX
1 stop6h 02m
Frontier
Deal found 6/10![Frontier logo]()
$120
This Southwest deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” 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 8/68:00 am
MDW
- PHX
1 stop5h 50m
Southwest
Deal found 6/11![Southwest logo]()
$128
This Alaska Airlines deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” 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 7/46:20 am
ORD
- PHX
1 stop8h 03m
Alaska Airlines
Deal found 6/10![Alaska Airlines logo]()
$128
Find flight deals from Illinois to Mesa
Keep the following information in mind while searching for Illinois to Mesa flight deals. Data was last updated June 15, 2026.
Round-trip from | $237 (Cheapflightsfares) |
|---|---|
One-way from | $89 (Kiwi.com) |
Popular in | June |
Cheapest in | August |
Average price | $345 |
Cheapflights Fare Finder
Customize your flight search to find flights from Illinois to Mesa 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 June 15, 2026.
Use the filters below to find and compare flights from Illinois to Mesa that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
ChicagoPhoenix
MDW - PHX
MDWPHX
Chicago Midway
Thu 10/29
5:35 pm-11:14 pm
1 stop7h 39m
Phoenix Sky Harbor Intl
Mon 11/2
11:55 pm-9:52 am
1 stop8h 57m
$241
ChicagoPhoenix
ORD - PHX
ORDPHX
Chicago O'Hare Intl
Fri 10/30
7:40 pm-11:14 pm
1 stop5h 34m
Phoenix Sky Harbor Intl
Wed 11/4
3:05 pm-9:34 pm
1 stop5h 29m
$244
ChicagoPhoenix
ORD - PHX
ORDPHX
Chicago O'Hare Intl
Sat 9/5
6:01 am-11:31 am
1 stop7h 30m
Phoenix Sky Harbor Intl
Tue 9/8
7:08 am-7:21 pm
1 stop10h 13m
$255
ChicagoPhoenix
ORD - PHX
ORDPHX
Chicago O'Hare Intl
Tue 9/29
7:20 am-2:33 pm
1 stop9h 13m
Phoenix Sky Harbor Intl
Sat 10/3
2:45 pm-11:59 pm
1 stop7h 14m
$255
ChicagoPhoenix
ORD - PHX
ORDPHX
Chicago O'Hare Intl
Wed 10/14
2:21 pm-8:41 pm
1 stop8h 20m
Phoenix Sky Harbor Intl
Sat 10/17
10:12 am-6:53 pm
1 stop6h 41m
$255
St. LouisPhoenix
STL - PHX
STLPHX
Lambert-St Louis
Tue 11/3
6:00 am-8:25 am
Nonstop3h 25m
Phoenix Sky Harbor Intl
Tue 11/10
6:50 am-1:25 pm
1 stop5h 35m
$259
ChicagoPhoenix
ORD - PHX
ORDPHX
Chicago O'Hare Intl
Mon 10/5
8:30 pm-10:24 pm
Nonstop3h 54m
Phoenix Sky Harbor Intl
Sun 10/11
4:49 pm-10:28 pm
Nonstop3h 39m
$269
ChicagoPhoenix
ORD - PHX
ORDPHX
Chicago O'Hare Intl
Tue 6/30
10:25 am-12:26 pm
Nonstop4h 01m
Phoenix Sky Harbor Intl
Tue 7/14
4:12 pm-12:45 am
1 stop6h 33m
$270
ChicagoPhoenix
ORD - PHX
ORDPHX
Chicago O'Hare Intl
Tue 6/30
4:02 pm-5:53 pm
Nonstop3h 51m
Phoenix Sky Harbor Intl
Tue 7/7
10:06 am-7:05 pm
1 stop6h 59m
$270
ChicagoPhoenix
ORD - PHX
ORDPHX
Chicago O'Hare Intl
Wed 7/1
9:02 am-11:03 am
Nonstop4h 01m
Phoenix Sky Harbor Intl
Sat 7/4
1:28 pm-7:10 pm
Nonstop3h 42m
$275
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Illinois to Mesa
Have a flexible travel schedule? Discover the best time to fly to Mesa from Illinois with our price prediction graph.
STL-PHX
ORD-PHX
PIA-PHX
MDW-PHX
MLI-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 Mesa
USIL-MS9
STL-PHX
ORD-PHX
PIA-PHX
MDW-PHX
What is the cheapest time of day to fly from IL to MS9?
Find hourly flight availability from Illinois to Mesa. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 15, 2026.
One of the essential ways to save on airfare from Illinois to Mesa 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 13% on airfare.
Weekly flight availability from Illinois to Mesa
Explore weekly flight availability from Illinois to Mesa. 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 June 15, 2026.
The most flights from USIL to MS9 are scheduled on a Friday (53 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (39 on average).
How much does it cost to fly round-trip from Illinois to Mesa?
What is the cheapest day to fly from Illinois to Mesa?
Use this chart to determine the cheapest time to fly round-trip from Illinois to Mesa. Price data was last updated on June 13, 2026.
Travelers seeking maximum savings on their Illinois to Mesa 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.
Related info for your journey
Find useful and relevant information for your journey from Illinois to Mesa. 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 Mesa
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Mesa by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Illinois to Mesa by cabin class
Find flights from Illinois to Mesa, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Illinois and Mesa flights
Browse other Illinois and Mesa flight options. Last updated on June 15, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Find a return flight route from Mesa
Find the right flight back to Illinois after your stay in Mesa
Illinois to Mesa flights
Consider these flights traveling from Illinois to Mesa.
Top 8 airlines flying from Illinois to Mesa
Discover the top 8 airlines that operate flights from Illinois to Mesa. 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 June 15, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$65 | Average$223 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$108 | Average$296 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$118 | Average$223 | FlexibilityNo cancel fee | On-time88% | |
| Cheapest$184 | Average$387 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$188 | Average$328 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$196 | Average$415 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$204 | Average$332 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$220 | Average$269 | FlexibilityNo cancel fee | On-time75% |