$77+ Cheap flights from Mesa, AZ to Illinois
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 7/14. Fares are subject to change and may not be available on all flights or dates of travel.
PHX — ORD
Jul 17 — Jul 241
Round-trip
1 adult, Economy
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Cheapest flights from Mesa to IllinoisExplore the most affordable flight options available from Mesa to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 17, 2026.
Explore the most affordable flight options available from Mesa to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 17, 2026.
This Frontier 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/157:04 pm
PHX
- ORD
Nonstop3h 29m
Frontier
Tue 10/277:00 am
ORD
- PHX
1 stop11h 50m
Frontier
Deal found 6/13![Frontier logo]()
$251
This Southwest deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/215:45 pm
PHX
- MDW
Nonstop3h 25m
Southwest
Tue 7/2812:20 pm
MDW
- PHX
1 stop4h 45m
Southwest
Deal found 6/16![Southwest logo]()
$251
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.
Wed 7/152:04 pm
PHX
- ORD
1 stop13h 33m
Frontier
Wed 7/297:15 am
ORD
- PHX
1 stop7h 44m
Frontier
Deal found 6/13![Frontier logo]()
$252
This Frontier 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/159:50 pm
PHX
- MDW
1 stop10h 01m
Frontier
Mon 8/1711:06 am
MDW
- PHX
1 stop10h 38m
Frontier
Deal found 6/12![Frontier logo]()
$252
This Kiwi.com deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/117:04 pm
PHX
- ORD
Nonstop3h 29m
Multiple Airlines
Tue 10/132:21 pm
ORD
- PHX
1 stop8h 20m
Multiple Airlines
Deal found 6/17![Multiple Airlines logo]()
$253
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 7/282:04 pm
PHX
- ORD
1 stop13h 33m
Frontier
Tue 8/49:57 pm
ORD
- PHX
1 stop14h 14m
Frontier
Deal found 6/13![Frontier logo]()
$254
This Frontier deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/189:50 pm
PHX
- MDW
1 stop11h 17m
Frontier
Tue 7/215:46 pm
MDW
- PHX
1 stop7h 13m
Frontier
Deal found 6/16![Frontier logo]()
$254
This United Airlines deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/215:49 pm
PHX
- ORD
Nonstop3h 42m
United Airlines
Tue 7/285:00 am
ORD
- PHX
1 stop6h 00m
United Airlines
Deal found 6/16![United Airlines logo]()
$255
This Southwest deal was found by Cheapflights users on 6/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/84:25 pm
PHX
- MDW
Nonstop3h 25m
Southwest
Tue 7/145:30 am
MDW
- PHX
1 stop6h 10m
Southwest
Deal found 6/15![Southwest logo]()
$255
This Kiwi.com deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/72:04 pm
PHX
- ORD
1 stop13h 33m
Frontier
Wed 7/227:15 am
ORD
- PHX
1 stop7h 44m
Frontier
Deal found 6/16![Frontier logo]()
$256
This United Airlines deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/411:12 am
PHX
- ORD
Nonstop3h 42m
United Airlines
Mon 8/108:30 pm
ORD
- PHX
Nonstop3h 57m
United Airlines
Deal found 6/17![United Airlines logo]()
$257
This Southwest deal was found by Cheapflights users on 6/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/512:35 am
PHX
- MDW
Nonstop3h 15m
Southwest
Wed 8/125:20 pm
MDW
- PHX
Nonstop3h 40m
Southwest
Deal found 6/15![Southwest logo]()
$257
Best flights from Mesa to IllinoisDiscover carefully curated flight deals from Mesa to Illinois that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 17, 2026.
Discover carefully curated flight deals from Mesa to Illinois that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 17, 2026.
This Alaska Airlines deal was found by Cheapflights users on 6/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/83:13 pm
PHX
- ORD
1 stop20h 08m
Alaska Airlines
Wed 8/196:01 am
ORD
- PHX
1 stop7h 30m
Alaska Airlines
Deal found 6/15![Alaska Airlines logo]()
$255
This Southwest deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/84:25 pm
PHX
- MDW
Nonstop3h 25m
Southwest
Wed 7/155:30 am
MDW
- PHX
1 stop6h 10m
Southwest
Deal found 6/16![Southwest logo]()
$255
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 7/711:04 pm
PHX
- ORD
1 stop6h 55m
Delta
Wed 7/157:45 am
ORD
- PHX
1 stop6h 27m
Delta
Deal found 6/13![Delta logo]()
$265
This United Airlines deal was found by Cheapflights users on 6/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/155:49 pm
PHX
- ORD
Nonstop3h 42m
United Airlines
Sat 7/255:00 am
ORD
- PHX
1 stop6h 00m
United Airlines
Deal found 6/15![United Airlines logo]()
$270
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.
Wed 10/710:55 pm
PHX
- RFD
1 stop19h 18m
Multiple Airlines
Sun 10/258:53 pm
RFD
- PHX
1 stop15h 20m
Multiple Airlines
Deal found 6/13![Multiple Airlines logo]()
$299
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.
Tue 7/73:15 pm
PHX
- BMI
1 stop5h 53m
American Airlines
Sat 7/116:00 pm
BMI
- PHX
1 stop8h 14m
American Airlines
Deal found 6/13![American Airlines logo]()
$329
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 10/2410:12 am
PHX
- ORD
1 stop6h 41m
Alaska Airlines
Tue 10/272:21 pm
ORD
- PHX
1 stop8h 20m
Alaska Airlines
Deal found 6/13![Alaska Airlines logo]()
$255
This Southwest deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/215:45 pm
PHX
- MDW
Nonstop3h 25m
Southwest
Tue 7/285:25 am
MDW
- PHX
Nonstop3h 35m
Southwest
Deal found 6/16![Southwest logo]()
$260
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.
Tue 7/711:04 pm
PHX
- MDW
1 stop8h 09m
Delta
Tue 7/146:00 am
MDW
- PHX
1 stop8h 03m
Delta
Deal found 6/14![Delta logo]()
$265
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.
Thu 8/64:12 pm
PHX
- ORD
1 stop6h 33m
United Airlines
Tue 8/111:30 pm
ORD
- PHX
Nonstop3h 50m
United Airlines
Deal found 6/12![United Airlines logo]()
$279
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 8/512:35 am
PHX
- MDW
Nonstop3h 15m
Southwest
Sat 8/85:40 am
MDW
- PHX
Nonstop3h 35m
Southwest
Deal found 6/14![Southwest logo]()
$269
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.
Thu 9/107:49 pm
PHX
- ORD
1 stop15h 33m
Alaska Airlines
Tue 9/157:20 am
ORD
- PHX
1 stop9h 13m
Alaska Airlines
Deal found 6/14![Alaska Airlines logo]()
$272
This Delta deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/86:45 am
PHX
- ORD
1 stop8h 14m
Delta
Tue 7/147:29 am
ORD
- PHX
1 stop9h 52m
Delta
Deal found 6/16![Delta logo]()
$275
This Kiwi.com deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/39:03 am
PHX
- RFD
1 stop9h 36m
Multiple Airlines
Sun 9/69:29 pm
RFD
- PHX
1 stop27h 56m
Multiple Airlines
Deal found 6/16![Multiple Airlines logo]()
$311
This United Airlines deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/279:00 am
PHX
- ORD
Nonstop3h 43m
United Airlines
Sun 8/309:12 am
ORD
- PHX
Nonstop3h 56m
United Airlines
Deal found 6/16![United Airlines logo]()
$293
This Southwest deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/148:00 am
PHX
- MDW
1 stop4h 35m
Southwest
Tue 7/217:00 am
MDW
- PHX
1 stop5h 25m
Southwest
Deal found 6/16![Southwest 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.
Wed 12/910:35 am
PHX
- ORD
1 stop7h 20m
Alaska Airlines
Mon 12/149:20 am
ORD
- PHX
1 stop7h 40m
Alaska Airlines
Deal found 6/12![Alaska Airlines logo]()
$276
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 9/159:26 am
PHX
- MDW
1 stop6h 45m
Delta
Sat 9/269:49 am
MDW
- PHX
1 stop8h 09m
Delta
Deal found 6/13![Delta logo]()
$277
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.
Thu 8/207:45 am
PHX
- RFD
1 stop11h 00m
Multiple Airlines
Sun 8/239:35 pm
RFD
- PHX
1 stop27h 50m
Multiple Airlines
Deal found 6/12![Multiple Airlines logo]()
$321
This American Airlines deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/3010:14 am
PHX
- CMI
1 stop8h 45m
American Airlines
Fri 7/311:37 am
CMI
- PHX
1 stop6h 32m
American Airlines
Deal found 6/17![American Airlines logo]()
$370
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.
Thu 8/2011:05 pm
PHX
- ORD
1 stop6h 51m
Delta
Mon 8/247:44 pm
ORD
- PHX
1 stop6h 28m
Delta
Deal found 6/14![Delta logo]()
$289
This Southwest deal was found by Cheapflights users on 6/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/86:50 pm
PHX
- MDW
Nonstop3h 20m
Southwest
Tue 7/145:25 am
MDW
- PHX
Nonstop3h 35m
Southwest
Deal found 6/15![Southwest logo]()
$295
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 7/159:58 pm
PHX
- RFD
1 stop12h 26m
Multiple Airlines
Sun 7/199:19 am
RFD
- PHX
2 stops28h 08m
Multiple Airlines
Deal found 6/12![Multiple Airlines logo]()
$334
This United Airlines deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2711:28 am
PHX
- MLI
1 stop6h 03m
United Airlines
Mon 8/313:44 pm
MLI
- PHX
2 stops9h 15m
United Airlines
Deal found 6/17![United Airlines logo]()
$334
This American Airlines deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/95:00 am
PHX
- CMI
1 stop7h 11m
American Airlines
Sat 9/126:00 am
CMI
- PHX
2 stops9h 00m
American Airlines
Deal found 6/17![American Airlines logo]()
$376
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.
Thu 8/271:20 pm
PHX
- ORD
1 stop6h 10m
Delta
Mon 8/315:30 am
ORD
- PHX
1 stop8h 38m
Delta
Deal found 6/14![Delta logo]()
$289
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.
Wed 9/3011:35 am
PHX
- MDW
1 stop5h 25m
Southwest
Mon 10/53:55 pm
MDW
- PHX
1 stop5h 15m
Southwest
Deal found 6/12![Southwest logo]()
$304
This Delta deal was found by Cheapflights users on 6/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2011:05 pm
PHX
- MDW
1 stop8h 12m
Delta
Mon 8/249:59 am
MDW
- PHX
1 stop8h 02m
Delta
Deal found 6/15![Delta logo]()
$289
This Southwest deal was found by Cheapflights users on 6/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/283:05 pm
PHX
- MDW
Nonstop3h 15m
Southwest
Sun 8/305:40 am
MDW
- PHX
Nonstop3h 35m
Southwest
Deal found 6/15![Southwest logo]()
$317
This United Airlines deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/188:30 am
PHX
- STL
1 stop7h 34m
United Airlines
Wed 8/198:00 am
STL
- PHX
2 stops9h 16m
United Airlines
Deal found 6/16![United Airlines logo]()
$384
Last-minute flights from Mesa to IllinoisDiscover last-minute flight deals from Mesa to Illinois. Data last updated June 17, 2026 and is based on user searches.
Discover last-minute flight deals from Mesa to Illinois. Data last updated June 17, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/37:09 pm
PHX
- ORD
Nonstop3h 42m
American Airlines
Wed 7/155:00 am
ORD
- PHX
Nonstop3h 32m
American Airlines
Deal found 6/17![American Airlines logo]()
$260
This Kiwi.com deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/72:04 pm
PHX
- ORD
1 stop13h 33m
Frontier
Wed 7/227:15 am
ORD
- PHX
1 stop7h 44m
Frontier
Deal found 6/16![Frontier logo]()
$256
This Kiwi.com deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/72:04 pm
PHX
- ORD
1 stop13h 33m
Frontier
Wed 7/157:15 am
ORD
- PHX
1 stop7h 44m
Frontier
Deal found 6/16![Frontier logo]()
$258
This Southwest deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/84:25 pm
PHX
- MDW
Nonstop3h 25m
Southwest
Wed 7/155:30 am
MDW
- PHX
1 stop6h 10m
Southwest
Deal found 6/17![Southwest logo]()
$255
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.
Wed 7/152:04 pm
PHX
- ORD
1 stop13h 33m
Frontier
Wed 7/297:15 am
ORD
- PHX
1 stop7h 44m
Frontier
Deal found 6/13![Frontier logo]()
$252
This United Airlines deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/151:28 pm
PHX
- ORD
Nonstop3h 42m
United Airlines
Wed 7/225:00 am
ORD
- PHX
1 stop6h 00m
United Airlines
Deal found 6/17![United Airlines logo]()
$255
This Priceline deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/1711:23 pm
PHX
- MDW
1 stop9h 44m
Frontier
Wed 7/2212:11 pm
MDW
- PHX
1 stop9h 33m
Frontier
Deal found 6/16![Frontier logo]()
$258
This Frontier deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/1711:23 pm
PHX
- MDW
1 stop9h 44m
Frontier
Sat 7/2512:11 pm
MDW
- PHX
1 stop9h 26m
Frontier
Deal found 6/16![Frontier logo]()
$259
This Frontier deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/189:50 pm
PHX
- MDW
1 stop11h 17m
Frontier
Tue 7/215:46 pm
MDW
- PHX
1 stop7h 13m
Frontier
Deal found 6/16![Frontier logo]()
$254
This Southwest deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/215:45 pm
PHX
- MDW
Nonstop3h 25m
Southwest
Tue 7/2812:20 pm
MDW
- PHX
1 stop4h 45m
Southwest
Deal found 6/16![Southwest logo]()
$251
This Expedia deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/259:50 pm
PHX
- MDW
1 stop11h 17m
Frontier
Sat 8/112:11 pm
MDW
- PHX
1 stop9h 26m
Frontier
Deal found 6/17![Frontier logo]()
$257
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 7/282:04 pm
PHX
- ORD
1 stop13h 33m
Frontier
Tue 8/49:57 pm
ORD
- PHX
1 stop14h 14m
Frontier
Deal found 6/13![Frontier logo]()
$254
One-way flights from Mesa to IllinoisSearch for one-way flight options from Mesa to Illinois. Find affordable one-way fares based on user searches. Data last updated June 17, 2026.
Search for one-way flight options from Mesa to Illinois. Find affordable one-way fares based on user searches. Data last updated June 17, 2026.
This Trip.com deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/149:58 pm
PHX
- STL
1 stop18h 07m
Frontier
Deal found 6/17![Frontier logo]()
$77
This Kiwi.com deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/159:58 pm
PHX
- STL
1 stop18h 17m
Frontier
Deal found 6/17![Frontier logo]()
$79
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.
Tue 7/289:58 pm
PHX
- STL
1 stop18h 07m
Frontier
Deal found 6/14![Frontier logo]()
$88
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.
Wed 7/82:04 pm
PHX
- STL
1 stop26h 11m
Frontier
Deal found 6/13![Frontier logo]()
$89
This Kiwi.com deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/72:04 pm
PHX
- STL
1 stop26h 01m
Frontier
Deal found 6/17![Frontier logo]()
$91
This Trip.com deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/77:45 am
PHX
- STL
1 stop8h 30m
Frontier
Deal found 6/17![Frontier logo]()
$104
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.
Wed 8/52:04 pm
PHX
- MLI
1 stop19h 37m
Multiple Airlines
Deal found 6/14![Multiple Airlines 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 7/310:32 pm
PHX
- STL
1 stop13h 34m
Frontier
Deal found 6/12![Frontier logo]()
$105
This Trip.com deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/67:45 am
PHX
- STL
1 stop8h 30m
Frontier
Deal found 6/17![Frontier logo]()
$108
This Trip.com deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/137:45 am
PHX
- STL
1 stop8h 30m
Frontier
Deal found 6/17![Frontier logo]()
$109
This Kiwi.com deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/202:16 pm
PHX
- STL
2 stops25h 49m
Frontier
Deal found 6/16![Frontier logo]()
$110
This Kiwi.com deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/149:58 pm
PHX
- STL
1 stop18h 17m
Frontier
Deal found 6/16![Frontier logo]()
$111
Find flight deals from Mesa to Illinois
Keep the following information in mind while searching for Mesa to Illinois flight deals. Data was last updated June 17, 2026.
Round-trip from | $251 (Frontier) |
|---|---|
One-way from | $77 (Trip.com) |
Popular in | June |
Cheapest in | February |
Average price | $333 |
Cheapflights Fare Finder
Customize your flight search to find flights from Mesa to Illinois that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated June 17, 2026.
Use the filters below to find and compare flights from Mesa to Illinois that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
PhoenixChicago
PHX - ORD
PHXORD
Phoenix Sky Harbor Intl
Sat 8/8
3:13 pm-1:21 pm
1 stop20h 08m
Chicago O'Hare Intl
Wed 8/19
6:01 am-11:31 am
1 stop7h 30m
$255
PhoenixChicago
PHX - MDW
PHXMDW
Phoenix Sky Harbor Intl
Wed 7/8
4:25 pm-9:50 pm
Nonstop3h 25m
Chicago Midway
Wed 7/15
5:30 am-9:40 am
1 stop6h 10m
$255
PhoenixChicago
PHX - ORD
PHXORD
Phoenix Sky Harbor Intl
Sat 10/24
10:12 am-6:53 pm
1 stop6h 41m
Chicago O'Hare Intl
Tue 10/27
2:21 pm-8:41 pm
1 stop8h 20m
$255
PhoenixChicago
PHX - MDW
PHXMDW
Phoenix Sky Harbor Intl
Tue 7/21
5:45 pm-11:10 pm
Nonstop3h 25m
Chicago Midway
Tue 7/28
5:25 am-7:00 am
Nonstop3h 35m
$260
PhoenixChicago
PHX - ORD
PHXORD
Phoenix Sky Harbor Intl
Tue 7/7
11:04 pm-7:59 am
1 stop6h 55m
Chicago O'Hare Intl
Wed 7/15
7:45 am-12:12 pm
1 stop6h 27m
$265
PhoenixChicago
PHX - MDW
PHXMDW
Phoenix Sky Harbor Intl
Tue 7/7
11:04 pm-9:13 am
1 stop8h 09m
Chicago Midway
Tue 7/14
6:00 am-12:03 pm
1 stop8h 03m
$265
Quickest round-trip
PhoenixChicago
PHX - MDW
PHXMDW
Phoenix Sky Harbor Intl
Wed 8/5
12:35 am-5:50 am
Nonstop3h 15m
Chicago Midway
Sat 8/8
5:40 am-7:15 am
Nonstop3h 35m
$269
PhoenixChicago
PHX - ORD
PHXORD
Phoenix Sky Harbor Intl
Wed 7/15
5:49 pm-11:31 pm
Nonstop3h 42m
Chicago O'Hare Intl
Sat 7/25
5:00 am-9:00 am
1 stop6h 00m
$270
PhoenixChicago
PHX - ORD
PHXORD
Phoenix Sky Harbor Intl
Thu 9/10
7:49 pm-1:22 pm
1 stop15h 33m
Chicago O'Hare Intl
Tue 9/15
7:20 am-2:33 pm
1 stop9h 13m
$272
PhoenixChicago
PHX - ORD
PHXORD
Phoenix Sky Harbor Intl
Wed 7/8
6:45 am-4:59 pm
1 stop8h 14m
Chicago O'Hare Intl
Tue 7/14
7:29 am-3:21 pm
1 stop9h 52m
$275
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Mesa to Illinois
Have a flexible travel schedule? Discover the best time to fly to Illinois from Mesa with our price prediction graph.
PHX-MDW
PHX-ORD
PHX-RFD
PHX-BMI
PHX-CMI
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 Mesa to Illinois
MS9-USIL
PHX-MDW
PHX-ORD
PHX-RFD
PHX-BMI
What is the cheapest time of day to fly from MS9 to IL?
Find hourly flight availability from Mesa to Illinois. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 17, 2026.
It’s typically best to fly out from Mesa to Illinois in the afternoon. Doing so could potentially save you 18% on the flight price compared to flying in the evening, which is usually more expensive.
Weekly flight availability from Mesa to Illinois
Explore weekly flight availability from Mesa to Illinois. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated June 17, 2026.
The most flights from MS9 to USIL are scheduled on a Monday (57 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (43 on average).
How much does it cost to fly round-trip from Mesa to Illinois?
What is the cheapest day to fly from Mesa to Illinois?
Use this chart to determine the cheapest time to fly round-trip from Mesa to Illinois. Price data was last updated on June 13, 2026.
Travelers seeking maximum savings on their Mesa to Illinois flight should consider departing on Monday mornings when fares are most often at their lowest. Saturday evenings flights should be avoided if possible as fares are typically the most expensive at this time.
Reviews of airlines servicing Illinois
Get insights into the airlines that provide service to Illinois. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Illinois. Reviews last updated June 17, 2026.
See what other customers who have flown with Southwest,United Airlines, andAmerican Airlines from Mesa to Illinois have to say. 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.
Comfort
8.0
Food
7.0
Boarding
8.1
Entertainment
7.5
Overall
7.9
Crew
8.6
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Comfort
8.0
Food
7.0
Boarding
8.1
Entertainment
7.5
Overall
7.9
Crew
8.6
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Comfort
8.0
Food
7.0
Boarding
8.1
Entertainment
7.5
Overall
7.9
Crew
8.6
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Comfort
8.0
Food
7.0
Boarding
8.1
Entertainment
7.5
Overall
7.9
Crew
8.6
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Comfort
8.0
Food
7.0
Boarding
8.1
Entertainment
7.5
Overall
7.9
Crew
8.6
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Comfort
8.0
Food
7.0
Boarding
8.1
Entertainment
7.5
Overall
7.9
Crew
8.6
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Related info for your journey
Find useful and relevant information for your journey from Mesa to Illinois. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for Mesa to Illinois
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Illinois by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Mesa to Illinois by cabin class
Find flights from Mesa to Illinois, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Mesa and Illinois flights
Browse other Mesa and Illinois flight options. Last updated on June 17, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Find a return flight route from Illinois
Find the right flight back to Mesa after your stay in Illinois
Mesa to Illinois flights
Consider these flights traveling from Mesa to Illinois.
Top 6 airlines flying from Mesa to Illinois
Discover the top 6 airlines that operate flights from Mesa to Illinois. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated June 17, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$63 | Average$192 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$123 | Average$209 | FlexibilityNo cancel fee | On-time88% | |
| Cheapest$158 | Average$247 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$187 | Average$331 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$189 | Average$393 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$198 | Average$433 | FlexibilityNo cancel fee | On-time71% |