$83+ 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 5/9. Fares are subject to change and may not be available on all flights or dates of travel.
PHX — ORD
Apr 17 — Apr 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 March 18, 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 March 18, 2026.
This Cheapflightsfares deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/168:22 pm
PHX
- ORD
1 stop7h 28m
Frontier
Sat 4/188:55 am
ORD
- PHX
Nonstop4h 15m
Frontier
Deal found 3/13![Frontier logo]()
$132
This Kiwi.com deal was found by Cheapflights users on 3/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/221:29 pm
PHX
- ORD
1 stop14h 21m
Frontier
Sun 4/267:50 am
ORD
- PHX
Nonstop4h 22m
Frontier
Deal found 3/15![Frontier logo]()
$133
This Gotogate deal was found by Cheapflights users on 3/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/2512:17 pm
PHX
- ORD
Nonstop3h 36m
Frontier
Sun 5/37:45 am
ORD
- PHX
Nonstop4h 22m
Frontier
Deal found 3/18![Frontier logo]()
$134
This Kiwi.com deal was found by Cheapflights users on 3/17. 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.
Sat 4/185:17 pm
PHX
- ORD
1 stop10h 33m
Frontier
Fri 4/247:50 am
ORD
- PHX
Nonstop4h 22m
Frontier
Deal found 3/17![Frontier logo]()
$138
This CheapOair deal was found by Cheapflights users on 3/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/169:37 am
PHX
- MDW
Nonstop3h 27m
Frontier
Mon 4/206:20 am
MDW
- PHX
Nonstop3h 57m
Frontier
Deal found 3/16![Frontier logo]()
$138
This eDestinos deal was found by Cheapflights users on 3/17. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/86:47 pm
PHX
- ORD
1 stop8h 52m
Frontier
Mon 4/136:40 am
ORD
- PHX
Nonstop4h 10m
Frontier
Deal found 3/17![Frontier logo]()
$139
This Super.com deal was found by Cheapflights users on 3/13. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/179:07 am
PHX
- MDW
Nonstop3h 27m
Frontier
Sun 4/196:20 am
MDW
- PHX
Nonstop3h 57m
Frontier
Deal found 3/13![Frontier logo]()
$141
This Kiwi.com deal was found by Cheapflights users on 3/17. 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.
Fri 5/111:19 am
PHX
- ORD
Nonstop3h 41m
Frontier
Sun 5/37:45 am
ORD
- PHX
Nonstop4h 22m
Frontier
Deal found 3/17![Frontier logo]()
$142
This Super.com deal was found by Cheapflights users on 3/13. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/19:07 am
PHX
- MDW
Nonstop3h 27m
Frontier
Sun 5/36:20 am
MDW
- PHX
Nonstop3h 57m
Frontier
Deal found 3/13![Frontier logo]()
$142
This Frontier deal was found by Cheapflights users on 3/13. 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 4/2311:19 am
PHX
- ORD
Nonstop3h 41m
Frontier
Sun 4/267:50 am
ORD
- PHX
Nonstop4h 22m
Frontier
Deal found 3/13![Frontier logo]()
$143
This Booking.com deal was found by Cheapflights users on 3/17. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/2411:19 am
PHX
- ORD
Nonstop3h 41m
Frontier
Sun 4/267:50 am
ORD
- PHX
Nonstop4h 22m
Frontier
Deal found 3/17![Frontier logo]()
$144
This Booking.com deal was found by Cheapflights users on 3/17. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/244:34 pm
PHX
- MDW
Nonstop3h 16m
Frontier
Sun 4/266:20 am
MDW
- PHX
Nonstop3h 57m
Frontier
Deal found 3/17![Frontier logo]()
$144
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 March 18, 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 March 18, 2026.
This Southwest deal was found by Cheapflights users on 3/16. 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 4/151:25 pm
PHX
- ORD
Nonstop3h 25m
Southwest
Wed 4/227:15 pm
ORD
- PHX
Nonstop3h 55m
Southwest
Deal found 3/16![Southwest logo]()
$255
This Delta deal was found by Cheapflights users on 3/17. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/1312:59 am
PHX
- MDW
1 stop5h 43m
Delta
Tue 5/197:13 pm
MDW
- PHX
1 stop6h 16m
Delta
Deal found 3/17![Delta logo]()
$271
This United Airlines deal was found by Cheapflights users on 3/16. 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.
Sat 6/204:21 pm
PHX
- ORD
1 stop6h 23m
United Airlines
Sat 7/45:00 am
ORD
- PHX
1 stop6h 00m
United Airlines
Deal found 3/16![United Airlines logo]()
$295
This Alaska Airlines deal was found by Cheapflights users on 3/14. 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 6/171:05 pm
PHX
- ORD
1 stop8h 34m
Alaska Airlines
Sat 6/206:22 am
ORD
- PHX
1 stop8h 01m
Alaska Airlines
Deal found 3/14![Alaska Airlines logo]()
$295
This Southwest deal was found by Cheapflights users on 3/14. 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 6/106:50 pm
PHX
- MDW
Nonstop3h 15m
Southwest
Wed 6/179:10 pm
MDW
- PHX
Nonstop3h 40m
Southwest
Deal found 3/14![Southwest logo]()
$255
This American Airlines deal was found by Cheapflights users on 3/15. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/318:35 am
PHX
- EVV
1 stop7h 01m
American Airlines
Sat 4/43:50 pm
EVV
- PHX
1 stop8h 48m
American Airlines
Deal found 3/15![American Airlines logo]()
$561
This Southwest deal was found by Cheapflights users on 3/13. 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.
Wed 5/66:30 pm
PHX
- ORD
Nonstop3h 25m
Southwest
Thu 5/147:20 pm
ORD
- PHX
Nonstop3h 55m
Southwest
Deal found 3/13![Southwest logo]()
$256
This United Airlines deal was found by Cheapflights users on 3/13. 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.
Tue 8/410:06 am
PHX
- ORD
1 stop6h 49m
United Airlines
Mon 8/108:13 pm
ORD
- PHX
Nonstop3h 57m
United Airlines
Deal found 3/13![United Airlines logo]()
$296
This Southwest deal was found by Cheapflights users on 3/13. 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.
Thu 4/165:05 pm
PHX
- MDW
Nonstop3h 15m
Southwest
Tue 4/215:35 pm
MDW
- PHX
Nonstop3h 50m
Southwest
Deal found 3/13![Southwest logo]()
$256
This Southwest deal was found by Cheapflights users on 3/13. 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.
Sat 6/66:50 pm
PHX
- MDW
Nonstop3h 15m
Southwest
Mon 6/89:55 pm
MDW
- PHX
Nonstop3h 40m
Southwest
Deal found 3/13![Southwest logo]()
$261
This United Airlines deal was found by Cheapflights users on 3/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/114:12 pm
PHX
- ORD
1 stop6h 33m
United Airlines
Sat 6/139:28 pm
ORD
- PHX
Nonstop3h 54m
United Airlines
Deal found 3/15![United Airlines logo]()
$316
This Southwest deal was found by Cheapflights users on 3/14. 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 5/286:30 pm
PHX
- ORD
Nonstop3h 25m
Southwest
Mon 6/16:15 am
ORD
- PHX
1 stop5h 55m
Southwest
Deal found 3/14![Southwest logo]()
$271
This United Airlines deal was found by Cheapflights users on 3/13. 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.
Fri 6/511:50 pm
PHX
- PIA
1 stop8h 20m
United Airlines
Mon 6/85:33 pm
PIA
- PHX
1 stop7h 49m
United Airlines
Deal found 3/13![United Airlines logo]()
$329
This Southwest deal was found by Cheapflights users on 3/17. 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.
Fri 5/11:25 pm
PHX
- ORD
Nonstop3h 25m
Southwest
Fri 5/87:20 pm
ORD
- PHX
Nonstop3h 55m
Southwest
Deal found 3/17![Southwest logo]()
$277
This Southwest deal was found by Cheapflights users on 3/17. 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.
Fri 5/16:40 am
PHX
- MDW
Nonstop3h 15m
Southwest
Fri 5/85:25 am
MDW
- PHX
Nonstop3h 45m
Southwest
Deal found 3/17![Southwest logo]()
$277
This United Airlines deal was found by Cheapflights users on 3/17. 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 4/2112:00 pm
PHX
- MLI
1 stop7h 32m
United Airlines
Sat 4/258:00 am
MLI
- PHX
1 stop7h 11m
United Airlines
Deal found 3/17![United Airlines logo]()
$379
This Delta deal was found by Cheapflights users on 3/17. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/1811:55 pm
PHX
- EVV
1 stop7h 31m
Delta
Mon 6/225:45 pm
EVV
- PHX
1 stop7h 17m
Delta
Deal found 3/17![Delta logo]()
$511
This Southwest deal was found by Cheapflights users on 3/15. 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.
Thu 4/95:05 pm
PHX
- MDW
Nonstop3h 15m
Southwest
Sun 4/126:55 am
MDW
- PHX
Nonstop3h 50m
Southwest
Deal found 3/15![Southwest logo]()
$285
This Delta deal was found by Cheapflights users on 3/14. 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.
Fri 4/1711:55 pm
PHX
- EVV
1 stop7h 29m
Delta
Wed 4/2212:11 pm
EVV
- PHX
1 stop9h 00m
Delta
Deal found 3/14![Delta logo]()
$516
This United Airlines deal was found by Cheapflights users on 3/16. 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.
Fri 8/214:28 pm
PHX
- BMI
1 stop5h 44m
United Airlines
Sat 8/291:32 pm
BMI
- PHX
1 stop6h 33m
United Airlines
Deal found 3/16![United Airlines logo]()
$388
This American Airlines deal was found by Cheapflights users on 3/17. 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 6/197:00 am
PHX
- EVV
1 stop9h 02m
American Airlines
Mon 6/225:30 pm
EVV
- PHX
1 stop8h 03m
American Airlines
Deal found 3/17![American Airlines logo]()
$569
This Southwest deal was found by Cheapflights users on 3/13. 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.
Wed 5/276:30 pm
PHX
- ORD
Nonstop3h 25m
Southwest
Sun 5/317:15 pm
ORD
- PHX
Nonstop3h 55m
Southwest
Deal found 3/13![Southwest logo]()
$286
This United Airlines deal was found by Cheapflights users on 3/14. 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 4/217:00 am
PHX
- PIA
1 stop7h 44m
United Airlines
Sat 4/251:20 pm
PIA
- PHX
1 stop6h 38m
United Airlines
Deal found 3/14![United Airlines logo]()
$391
This Delta deal was found by Cheapflights users on 3/17. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/711:55 pm
PHX
- EVV
1 stop8h 44m
Delta
Fri 4/175:58 pm
EVV
- PHX
1 stop6h 46m
Delta
Deal found 3/17![Delta logo]()
$529
This Southwest deal was found by Cheapflights users on 3/15. 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 6/175:45 pm
PHX
- MDW
Nonstop3h 20m
Southwest
Mon 6/229:55 pm
MDW
- PHX
Nonstop3h 40m
Southwest
Deal found 3/15![Southwest logo]()
$286
This United Airlines deal was found by Cheapflights users on 3/13. 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.
Fri 5/2910:06 am
PHX
- PIA
2 stops12h 09m
United Airlines
Sun 6/75:33 pm
PIA
- PHX
1 stop7h 49m
United Airlines
Deal found 3/13![United Airlines logo]()
$403
This Southwest deal was found by Cheapflights users on 3/16. 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 9/23:50 pm
PHX
- MDW
Nonstop3h 15m
Southwest
Sun 9/69:55 pm
MDW
- PHX
Nonstop3h 35m
Southwest
Deal found 3/16![Southwest logo]()
$286
This Delta deal was found by Cheapflights users on 3/14. 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.
Sat 4/1811:55 pm
PHX
- EVV
1 stop8h 36m
Delta
Wed 4/225:58 pm
EVV
- PHX
1 stop6h 44m
Delta
Deal found 3/14![Delta logo]()
$565
This United Airlines deal was found by Cheapflights users on 3/13. 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 4/2912:48 pm
PHX
- MLI
1 stop8h 14m
United Airlines
Sat 5/26:35 am
MLI
- PHX
2 stops10h 18m
United Airlines
Deal found 3/13![United Airlines logo]()
$404
This Delta deal was found by Cheapflights users on 3/14. 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.
Sat 4/1811:55 pm
PHX
- EVV
1 stop8h 36m
Delta
Tue 4/2110:05 am
EVV
- PHX
1 stop9h 35m
Delta
Deal found 3/14![Delta logo]()
$565
Last-minute flights from Mesa to IllinoisDiscover last-minute flight deals from Mesa to Illinois. Data last updated March 18, 2026 and is based on user searches.
Discover last-minute flight deals from Mesa to Illinois. Data last updated March 18, 2026 and is based on user searches.
This eDestinos deal was found by Cheapflights users on 3/17. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/86:47 pm
PHX
- ORD
1 stop8h 52m
Frontier
Mon 4/136:40 am
ORD
- PHX
Nonstop4h 10m
Frontier
Deal found 3/17![Frontier logo]()
$139
This Cheapflightsfares deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/168:22 pm
PHX
- ORD
1 stop7h 28m
Frontier
Sat 4/188:55 am
ORD
- PHX
Nonstop4h 15m
Frontier
Deal found 3/13![Frontier logo]()
$132
This CheapOair deal was found by Cheapflights users on 3/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/169:37 am
PHX
- MDW
Nonstop3h 27m
Frontier
Mon 4/206:20 am
MDW
- PHX
Nonstop3h 57m
Frontier
Deal found 3/16![Frontier logo]()
$138
This Super.com deal was found by Cheapflights users on 3/15. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/169:37 am
PHX
- MDW
Nonstop3h 27m
Frontier
Sun 4/196:20 am
MDW
- PHX
Nonstop3h 57m
Frontier
Deal found 3/15![Frontier logo]()
$142
This Super.com deal was found by Cheapflights users on 3/13. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/179:07 am
PHX
- MDW
Nonstop3h 27m
Frontier
Sun 4/196:20 am
MDW
- PHX
Nonstop3h 57m
Frontier
Deal found 3/13![Frontier logo]()
$141
This Kiwi.com deal was found by Cheapflights users on 3/17. 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.
Sat 4/185:17 pm
PHX
- ORD
1 stop10h 33m
Frontier
Fri 4/247:50 am
ORD
- PHX
Nonstop4h 22m
Frontier
Deal found 3/17![Frontier logo]()
$138
This Kiwi.com deal was found by Cheapflights users on 3/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/221:29 pm
PHX
- ORD
1 stop14h 21m
Frontier
Sun 4/267:50 am
ORD
- PHX
Nonstop4h 22m
Frontier
Deal found 3/15![Frontier logo]()
$133
This Cheapflightsfares deal was found by Cheapflights users on 3/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/2311:19 am
PHX
- ORD
Nonstop3h 41m
Frontier
Sun 4/267:50 am
ORD
- PHX
Nonstop4h 22m
Frontier
Deal found 3/16![Frontier logo]()
$142
This Booking.com deal was found by Cheapflights users on 3/17. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/2411:19 am
PHX
- ORD
Nonstop3h 41m
Frontier
Sun 4/267:50 am
ORD
- PHX
Nonstop4h 22m
Frontier
Deal found 3/17![Frontier logo]()
$144
This Booking.com deal was found by Cheapflights users on 3/17. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/244:34 pm
PHX
- MDW
Nonstop3h 16m
Frontier
Sun 4/266:20 am
MDW
- PHX
Nonstop3h 57m
Frontier
Deal found 3/17![Frontier logo]()
$144
This Kiwi.com deal was found by Cheapflights users on 3/17. 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.
Sat 4/255:17 pm
PHX
- ORD
1 stop11h 03m
Frontier
Sun 5/37:45 am
ORD
- PHX
Nonstop4h 22m
Frontier
Deal found 3/17![Frontier logo]()
$137
This Cheapflightsfares deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/3010:29 pm
PHX
- ORD
1 stop11h 03m
Frontier
Sat 5/28:55 am
ORD
- PHX
Nonstop4h 15m
Frontier
Deal found 3/13![Frontier logo]()
$143
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 March 18, 2026.
Search for one-way flight options from Mesa to Illinois. Find affordable one-way fares based on user searches. Data last updated March 18, 2026.
This Kiwi.com deal was found by Cheapflights users on 3/13. 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.
Sat 5/95:15 am
PHX
- STL
1 stop12h 08m
Frontier
Deal found 3/13![Frontier logo]()
$83
This Kiwi.com deal was found by Cheapflights users on 3/17. 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.
Sat 4/186:50 am
PHX
- STL
1 stop10h 42m
Frontier
Deal found 3/17![Frontier logo]()
$88
This Kiwi.com deal was found by Cheapflights users on 3/17. 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.
Sat 4/185:17 pm
PHX
- ORD
1 stop10h 33m
Frontier
Deal found 3/17![Frontier logo]()
$93
This Super.com deal was found by Cheapflights users on 3/17. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/2310:00 am
PHX
- ORD
Nonstop3h 35m
Frontier
Deal found 3/17![Frontier logo]()
$94
This Trip.com deal was found by Cheapflights users on 3/16. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/151:29 pm
PHX
- ORD
1 stop14h 21m
Frontier
Deal found 3/16![Frontier logo]()
$95
This Kiwi.com deal was found by Cheapflights users on 3/14. 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.
Sat 5/95:15 am
PHX
- ORD
1 stop13h 22m
Frontier
Deal found 3/14![Frontier logo]()
$97
This Kiwi.com deal was found by Cheapflights users on 3/17. 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.
Sat 4/259:52 am
PHX
- STL
1 stop7h 40m
Frontier
Deal found 3/17![Frontier logo]()
$97
This Super.com deal was found by Cheapflights users on 3/13. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/2311:19 am
PHX
- ORD
Nonstop3h 41m
Frontier
Deal found 3/13![Frontier logo]()
$98
This Super.com deal was found by Cheapflights users on 3/15. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/179:07 am
PHX
- MDW
Nonstop3h 27m
Frontier
Deal found 3/15![Frontier logo]()
$98
This Frontier deal was found by Cheapflights users on 3/13. 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 4/169:37 am
PHX
- MDW
Nonstop3h 27m
Frontier
Deal found 3/13![Frontier logo]()
$99
This Kiwi.com deal was found by Cheapflights users on 3/16. 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.
Sat 5/169:15 am
PHX
- ORD
1 stop11h 46m
Frontier
Deal found 3/16![Frontier logo]()
$100
This Kiwi.com deal was found by Cheapflights users on 3/17. 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.
Sat 5/165:15 am
PHX
- STL
1 stop12h 08m
Frontier
Deal found 3/17![Frontier logo]()
$100
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 March 18, 2026.
Round-trip from | $132 (Cheapflightsfares) |
|---|---|
One-way from | $83 (Kiwi.com) |
Popular in | December |
Cheapest in | February |
Average price | $304 |
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 March 18, 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
Wed 4/15
1:25 pm-6:50 pm
Nonstop3h 25m
Chicago O'Hare Intl
Wed 4/22
7:15 pm-9:10 pm
Nonstop3h 55m
$255
PhoenixChicago
PHX - MDW
PHXMDW
Phoenix Sky Harbor Intl
Wed 6/10
6:50 pm-12:05 am
Nonstop3h 15m
Chicago Midway
Wed 6/17
9:10 pm-10:50 pm
Nonstop3h 40m
$255
PhoenixChicago
PHX - ORD
PHXORD
Phoenix Sky Harbor Intl
Wed 5/6
6:30 pm-11:55 pm
Nonstop3h 25m
Chicago O'Hare Intl
Thu 5/14
7:20 pm-9:15 pm
Nonstop3h 55m
$256
PhoenixChicago
PHX - MDW
PHXMDW
Phoenix Sky Harbor Intl
Thu 4/16
5:05 pm-10:20 pm
Nonstop3h 15m
Chicago Midway
Tue 4/21
5:35 pm-7:25 pm
Nonstop3h 50m
$256
PhoenixChicago
PHX - MDW
PHXMDW
Phoenix Sky Harbor Intl
Sat 6/6
6:50 pm-12:05 am
Nonstop3h 15m
Chicago Midway
Mon 6/8
9:55 pm-11:35 pm
Nonstop3h 40m
$261
PhoenixChicago
PHX - MDW
PHXMDW
Phoenix Sky Harbor Intl
Wed 5/13
12:59 am-8:42 am
1 stop5h 43m
Chicago Midway
Tue 5/19
7:13 pm-11:29 pm
1 stop6h 16m
$271
PhoenixChicago
PHX - ORD
PHXORD
Phoenix Sky Harbor Intl
Thu 5/28
6:30 pm-11:55 pm
Nonstop3h 25m
Chicago O'Hare Intl
Mon 6/1
6:15 am-10:10 am
1 stop5h 55m
$271
PhoenixChicago
PHX - ORD
PHXORD
Phoenix Sky Harbor Intl
Fri 5/1
1:25 pm-6:50 pm
Nonstop3h 25m
Chicago O'Hare Intl
Fri 5/8
7:20 pm-9:15 pm
Nonstop3h 55m
$277
PhoenixChicago
PHX - MDW
PHXMDW
Phoenix Sky Harbor Intl
Fri 5/1
6:40 am-11:55 am
Nonstop3h 15m
Chicago Midway
Fri 5/8
5:25 am-7:10 am
Nonstop3h 45m
$277
PhoenixChicago
PHX - MDW
PHXMDW
Phoenix Sky Harbor Intl
Thu 4/9
5:05 pm-10:20 pm
Nonstop3h 15m
Chicago Midway
Sun 4/12
6:55 am-8:45 am
Nonstop3h 50m
$285
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-STL
PHX-ORD
PHX-MDW
PHX-EVV
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-STL
PHX-ORD
PHX-MDW
PHX-EVV
What is the cheapest month to book a flight from Mesa to Illinois?
Currently, February is the cheapest month in which you can book a flight from Mesa to Illinois (average of $58). Flying from Mesa to Illinois in June is currently the most expensive (average of $178). 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 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 March 18, 2026.
It’s typically best to fly out from Mesa to Illinois at noon. Doing so could potentially save you 4% on the flight price compared to flying in the evening, which is usually more expensive.
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 March 14, 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.
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 March 18, 2026.
The most flights from MS9 to USIL are scheduled on a Wednesday (58 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (46 on average).
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 March 18, 2026.
See what other customers who have flown with Southwest,Delta, andUnited 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.
Food
7.0
Boarding
8.1
Entertainment
7.5
Comfort
8.0
Crew
8.6
Overall
8.0
Reviews
1 / 20
10.0
ExcellentAnonymous,Mar 2026
KOA - HNL
Food
7.0
Boarding
8.1
Entertainment
7.5
Comfort
8.0
Crew
8.6
Overall
8.0
Reviews
1 / 20
10.0
ExcellentAnonymous,Mar 2026
KOA - HNL
Food
7.0
Boarding
8.1
Entertainment
7.5
Comfort
8.0
Crew
8.6
Overall
8.0
Reviews
1 / 20
10.0
ExcellentAnonymous,Mar 2026
KOA - HNL
Food
7.0
Boarding
8.1
Entertainment
7.5
Comfort
8.0
Crew
8.6
Overall
8.0
Reviews
1 / 20
10.0
ExcellentAnonymous,Mar 2026
KOA - HNL
Food
7.0
Boarding
8.1
Entertainment
7.5
Comfort
8.0
Crew
8.6
Overall
8.0
Reviews
1 / 20
10.0
ExcellentAnonymous,Mar 2026
KOA - HNL
Food
7.0
Boarding
8.1
Entertainment
7.5
Comfort
8.0
Crew
8.6
Overall
8.0
Reviews
1 / 20
10.0
ExcellentAnonymous,Mar 2026
KOA - HNL
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 March 18, 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 March 18, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$65 | Average$205 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$93 | Average$218 | FlexibilityNo cancel fee | On-time88% | |
| Cheapest$118 | Average$293 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$149 | Average$358 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$187 | Average$319 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$197 | Average$425 | FlexibilityNo cancel fee | On-time71% |