$80+ 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 5/20. Fares are subject to change and may not be available on all flights or dates of travel.
PHX — ORD
May 28 — Jun 41
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 April 28, 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 April 28, 2026.
This Cheapflightsfares deal was found by Cheapflights users on 4/24. Clicking the “Pick Dates” 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 4/3011:19 am
PHX
- ORD
Nonstop3h 41m
Frontier
Sat 5/27:30 am
ORD
- PHX
1 stop9h 22m
Frontier
Deal found 4/24![Frontier logo]()
$173
This Frontier deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” 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 5/111:19 am
PHX
- ORD
Nonstop3h 41m
Frontier
Sat 5/28:55 am
ORD
- PHX
Nonstop4h 15m
Frontier
Deal found 4/23![Frontier logo]()
$174
This Cheapflightsfares deal was found by Cheapflights users on 4/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/2512:17 pm
PHX
- ORD
Nonstop3h 36m
Frontier
Sat 5/99:37 pm
ORD
- PHX
1 stop12h 07m
Frontier
Deal found 4/24![Frontier logo]()
$177
This Kiwi.com deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” 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 5/305:15 am
PHX
- ORD
1 stop13h 17m
Frontier
Wed 6/39:37 pm
ORD
- PHX
1 stop12h 07m
Frontier
Deal found 4/23![Frontier logo]()
$178
This Kiwi.com deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” 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 5/39:37 am
PHX
- MDW
Nonstop3h 27m
Frontier
Tue 5/53:07 pm
MDW
- PHX
1 stop23h 44m
Frontier
Deal found 4/23![Frontier logo]()
$178
This Kiwi.com deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/136:30 am
PHX
- ORD
1 stop6h 33m
Multiple Airlines
Fri 5/159:37 pm
ORD
- PHX
1 stop20h 18m
Multiple Airlines
Deal found 4/23![Multiple Airlines logo]()
$179
This Kiwi.com deal was found by Cheapflights users on 4/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/16:00 am
PHX
- MDW
1 stop6h 12m
Frontier
Sat 7/46:00 am
MDW
- PHX
1 stop18h 20m
Frontier
Deal found 4/26![Frontier logo]()
$179
This Frontier deal was found by Cheapflights users on 4/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/97:40 pm
PHX
- ORD
1 stop8h 59m
Frontier
Sat 5/161:59 pm
ORD
- PHX
1 stop10h 27m
Frontier
Deal found 4/24![Frontier logo]()
$180
This Kiwi.com deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” 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 5/1412:05 pm
PHX
- ORD
2 stops33h 54m
Frontier
Tue 5/199:37 pm
ORD
- PHX
1 stop14h 28m
Frontier
Deal found 4/23![Frontier logo]()
$182
This Super.com deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” 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 5/49:37 am
PHX
- MDW
Nonstop3h 27m
Frontier
Mon 5/1112:04 pm
MDW
- PHX
1 stop10h 29m
Frontier
Deal found 4/27![Frontier logo]()
$182
This Super.com deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” 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.
Sun 5/39:37 am
PHX
- MDW
Nonstop3h 27m
Frontier
Wed 6/312:04 pm
MDW
- PHX
1 stop10h 29m
Frontier
Deal found 4/23![Frontier logo]()
$183
This Kiwi.com deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” 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 6/611:50 am
PHX
- STL
1 stop24h 41m
Frontier
Tue 6/98:08 pm
STL
- PHX
1 stop16h 08m
Frontier
Deal found 4/27![Frontier logo]()
$183
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 April 28, 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 April 28, 2026.
This United Airlines deal was found by Cheapflights users on 4/25. Clicking the “Pick Dates” 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 6/911:50 pm
PHX
- ORD
Nonstop3h 27m
United Airlines
Tue 7/219:30 pm
ORD
- PHX
Nonstop3h 54m
United Airlines
Deal found 4/25![United Airlines logo]()
$255
This Southwest deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/266:30 pm
PHX
- ORD
Nonstop3h 25m
Southwest
Wed 6/37:45 am
ORD
- PHX
Nonstop3h 55m
Southwest
Deal found 4/27![Southwest logo]()
$257
This Alaska Airlines deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” 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 5/237:53 pm
PHX
- ORD
1 stop15h 21m
Alaska Airlines
Wed 5/272:10 pm
ORD
- PHX
1 stop7h 00m
Alaska Airlines
Deal found 4/27![Alaska Airlines logo]()
$267
This Delta deal was found by Cheapflights users on 4/25. Clicking the “Pick Dates” 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 7/216:45 am
PHX
- ORD
1 stop6h 20m
Delta
Tue 7/217:40 pm
ORD
- PHX
1 stop5h 51m
Delta
Deal found 4/25![Delta logo]()
$275
This American Airlines deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” 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 5/271:15 am
PHX
- BMI
1 stop7h 48m
American Airlines
Thu 6/46:02 pm
BMI
- PHX
1 stop8h 18m
American Airlines
Deal found 4/28![American Airlines logo]()
$349
This Kiwi.com deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” 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 5/2312:30 am
PHX
- PIA
2 stops17h 00m
Multiple Airlines
Thu 5/285:13 pm
PIA
- PHX
1 stop5h 57m
Multiple Airlines
Deal found 4/23![Multiple Airlines logo]()
$385
This United Airlines deal was found by Cheapflights users on 4/26. Clicking the “Pick Dates” 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 7/187:10 am
PHX
- ORD
Nonstop3h 38m
United Airlines
Tue 7/215:00 am
ORD
- PHX
1 stop6h 00m
United Airlines
Deal found 4/26![United Airlines logo]()
$265
This Alaska Airlines deal was found by Cheapflights users on 4/24. Clicking the “Pick Dates” 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 6/246:53 pm
PHX
- ORD
1 stop16h 28m
Alaska Airlines
Tue 6/306:20 am
ORD
- PHX
1 stop8h 03m
Alaska Airlines
Deal found 4/24![Alaska Airlines logo]()
$275
This Southwest deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/1911:55 pm
PHX
- MDW
Nonstop3h 05m
Southwest
Fri 5/223:05 pm
MDW
- PHX
Nonstop3h 45m
Southwest
Deal found 4/23![Southwest logo]()
$279
This United Airlines deal was found by Cheapflights users on 4/24. Clicking the “Pick Dates” 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 7/85:43 pm
PHX
- ORD
Nonstop3h 42m
United Airlines
Tue 7/145:00 am
ORD
- PHX
1 stop6h 00m
United Airlines
Deal found 4/24![United Airlines logo]()
$265
This Delta deal was found by Cheapflights users on 4/26. Clicking the “Pick Dates” 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 7/3010:48 am
PHX
- MDW
1 stop5h 37m
Delta
Tue 8/46:05 am
MDW
- PHX
1 stop7h 58m
Delta
Deal found 4/26![Delta logo]()
$306
This Southwest deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” 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 6/31:55 pm
PHX
- MDW
1 stop5h 50m
Southwest
Tue 6/95:35 am
MDW
- PHX
1 stop6h 05m
Southwest
Deal found 4/23![Southwest logo]()
$280
This United Airlines deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” 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 5/2811:50 pm
PHX
- ORD
Nonstop3h 27m
United Airlines
Wed 6/36:10 pm
ORD
- PHX
1 stop6h 49m
United Airlines
Deal found 4/28![United Airlines logo]()
$265
This Southwest deal was found by Cheapflights users on 4/24. Clicking the “Pick Dates” 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 9/159:30 am
PHX
- MDW
Nonstop3h 15m
Southwest
Wed 9/235:20 pm
MDW
- PHX
Nonstop3h 40m
Southwest
Deal found 4/24![Southwest logo]()
$286
This American Airlines deal was found by Cheapflights users on 4/25. Clicking the “Pick Dates” 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 5/201:15 am
PHX
- PIA
1 stop6h 08m
American Airlines
Tue 5/265:06 am
PIA
- PHX
1 stop9h 57m
American Airlines
Deal found 4/25![American Airlines logo]()
$349
This United Airlines deal was found by Cheapflights users on 4/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/84:12 pm
PHX
- ORD
1 stop6h 33m
United Airlines
Wed 6/109:42 pm
ORD
- PHX
Nonstop3h 54m
United Airlines
Deal found 4/24![United Airlines logo]()
$281
This American Airlines deal was found by Cheapflights users on 4/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/412:50 am
PHX
- PIA
1 stop6h 30m
American Airlines
Mon 6/87:03 pm
PIA
- PHX
1 stop7h 14m
American Airlines
Deal found 4/25![American Airlines logo]()
$349
This Southwest deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/2611:55 pm
PHX
- MDW
Nonstop3h 05m
Southwest
Tue 6/25:35 pm
MDW
- PHX
Nonstop3h 50m
Southwest
Deal found 4/27![Southwest logo]()
$290
This United Airlines deal was found by Cheapflights users on 4/24. Clicking the “Pick Dates” 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 6/255:43 pm
PHX
- ORD
Nonstop3h 42m
United Airlines
Sat 7/44:02 pm
ORD
- PHX
Nonstop3h 53m
United Airlines
Deal found 4/24![United Airlines logo]()
$286
This Southwest deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” 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 5/131:55 pm
PHX
- MDW
1 stop5h 50m
Southwest
Wed 5/206:10 am
MDW
- PHX
Nonstop3h 45m
Southwest
Deal found 4/27![Southwest logo]()
$302
This American Airlines deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” 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 7/312:15 pm
PHX
- STL
1 stop6h 14m
American Airlines
Wed 7/88:00 am
STL
- PHX
Nonstop3h 17m
American Airlines
Deal found 4/23![American Airlines logo]()
$385
This United Airlines deal was found by Cheapflights users on 4/25. Clicking the “Pick Dates” 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 6/115:49 pm
PHX
- ORD
Nonstop3h 42m
United Airlines
Tue 6/165:00 am
ORD
- PHX
1 stop6h 00m
United Airlines
Deal found 4/25![United Airlines logo]()
$296
This Southwest deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/95:10 am
PHX
- STL
1 stop5h 55m
Southwest
Tue 6/169:15 pm
STL
- PHX
Nonstop3h 10m
Southwest
Deal found 4/23![Southwest logo]()
$316
This Delta deal was found by Cheapflights users on 4/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/85:45 am
PHX
- BMI
1 stop7h 44m
Delta
Tue 5/124:14 pm
BMI
- PHX
1 stop8h 22m
Delta
Deal found 4/25![Delta logo]()
$464
This United Airlines deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” 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
Mon 6/228:13 pm
ORD
- PHX
Nonstop3h 57m
United Airlines
Deal found 4/27![United Airlines logo]()
$296
This American Airlines deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” 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 5/1312:29 pm
PHX
- BMI
1 stop7h 58m
American Airlines
Sun 5/176:00 am
BMI
- PHX
1 stop9h 05m
American Airlines
Deal found 4/28![American Airlines logo]()
$399
This Alaska Airlines deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/87:20 am
PHX
- MLI
2 stops14h 34m
Alaska Airlines
Tue 5/125:15 am
MLI
- PHX
2 stops11h 45m
Alaska Airlines
Deal found 4/23![Alaska Airlines logo]()
$499
This Southwest deal was found by Cheapflights users on 4/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/115:00 am
PHX
- MDW
Nonstop3h 15m
Southwest
Thu 10/158:40 pm
MDW
- PHX
Nonstop3h 45m
Southwest
Deal found 4/24![Southwest logo]()
$317
This Southwest deal was found by Cheapflights users on 4/26. Clicking the “Pick Dates” 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 6/127:15 pm
PHX
- MDW
Nonstop3h 20m
Southwest
Mon 6/155:20 am
MDW
- PHX
Nonstop3h 35m
Southwest
Deal found 4/26![Southwest logo]()
$317
This Delta deal was found by Cheapflights users on 4/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/2211:46 pm
PHX
- MLI
1 stop8h 34m
Delta
Thu 5/285:17 pm
MLI
- PHX
1 stop7h 19m
Delta
Deal found 4/25![Delta logo]()
$514
Last-minute flights from Mesa to IllinoisDiscover last-minute flight deals from Mesa to Illinois. Data last updated April 28, 2026 and is based on user searches.
Discover last-minute flight deals from Mesa to Illinois. Data last updated April 28, 2026 and is based on user searches.
This Cheapflightsfares deal was found by Cheapflights users on 4/24. Clicking the “Pick Dates” 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 4/3011:19 am
PHX
- ORD
Nonstop3h 41m
Frontier
Sat 5/27:30 am
ORD
- PHX
1 stop9h 22m
Frontier
Deal found 4/24![Frontier logo]()
$173
This Super.com deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” 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 4/306:24 pm
PHX
- MDW
Nonstop3h 19m
Frontier
Fri 5/16:15 am
MDW
- PHX
Nonstop3h 57m
Frontier
Deal found 4/27![Frontier logo]()
$186
This Kiwi.com deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” 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 5/39:37 am
PHX
- MDW
Nonstop3h 27m
Frontier
Tue 5/53:07 pm
MDW
- PHX
1 stop23h 44m
Frontier
Deal found 4/23![Frontier logo]()
$178
This Super.com deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” 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 5/49:37 am
PHX
- MDW
Nonstop3h 27m
Frontier
Mon 5/1112:04 pm
MDW
- PHX
1 stop10h 29m
Frontier
Deal found 4/27![Frontier logo]()
$182
This Frontier deal was found by Cheapflights users on 4/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/97:40 pm
PHX
- ORD
1 stop8h 59m
Frontier
Sat 5/161:59 pm
ORD
- PHX
1 stop10h 27m
Frontier
Deal found 4/24![Frontier logo]()
$180
This eDestinos deal was found by Cheapflights users on 4/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/129:15 am
PHX
- ORD
1 stop11h 46m
Frontier
Fri 5/158:56 pm
ORD
- PHX
1 stop28h 46m
Frontier
Deal found 4/25![Frontier logo]()
$186
This Kiwi.com deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” 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 5/1211:00 am
PHX
- ORD
1 stop7h 32m
Frontier
Tue 5/194:05 pm
ORD
- PHX
1 stop23h 04m
Frontier
Deal found 4/27![Frontier logo]()
$187
This Cheapflightsfares deal was found by Cheapflights users on 4/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/139:15 am
PHX
- ORD
1 stop11h 46m
Frontier
Tue 5/199:37 pm
ORD
- PHX
1 stop14h 28m
Frontier
Deal found 4/25![Frontier logo]()
$179
This Kiwi.com deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” 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 5/1412:05 pm
PHX
- ORD
2 stops33h 54m
Frontier
Tue 5/199:37 pm
ORD
- PHX
1 stop14h 28m
Frontier
Deal found 4/23![Frontier logo]()
$182
This Cheapflightsfares deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/187:40 pm
PHX
- ORD
1 stop8h 59m
Frontier
Thu 5/289:37 pm
ORD
- PHX
1 stop14h 28m
Frontier
Deal found 4/27![Frontier logo]()
$184
This Frontier deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” 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 5/197:40 am
PHX
- STL
1 stop8h 26m
Frontier
Tue 5/266:51 pm
STL
- PHX
1 stop6h 33m
Frontier
Deal found 4/28![Frontier logo]()
$160
This Expedia deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” 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.
Sun 5/247:40 am
PHX
- STL
1 stop10h 31m
Frontier
Tue 6/28:08 pm
STL
- PHX
1 stop5h 21m
Frontier
Deal found 4/27![Frontier logo]()
$185
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 April 28, 2026.
Search for one-way flight options from Mesa to Illinois. Find affordable one-way fares based on user searches. Data last updated April 28, 2026.
This Frontier deal was found by Cheapflights users on 4/25. Clicking the “Pick Dates” 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 5/207:40 am
PHX
- STL
1 stop8h 26m
Frontier
Deal found 4/25![Frontier logo]()
$80
This Super.com deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” 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 5/157:40 am
PHX
- STL
1 stop10h 43m
Frontier
Deal found 4/23![Frontier logo]()
$85
This Priceline deal was found by Cheapflights users on 4/26. Clicking the “Pick Dates” 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.
Sun 5/247:40 am
PHX
- STL
1 stop10h 31m
Frontier
Deal found 4/26![Frontier logo]()
$86
This Kiwi.com deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” 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 5/115:15 am
PHX
- STL
1 stop12h 08m
Frontier
Deal found 4/23![Frontier logo]()
$87
This Kiwi.com deal was found by Cheapflights users on 4/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/2711:30 pm
PHX
- STL
1 stop16h 03m
Frontier
Deal found 4/26![Frontier logo]()
$89
This Kiwi.com deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” 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 5/267:40 pm
PHX
- STL
2 stops21h 43m
Frontier
Deal found 4/28![Frontier logo]()
$90
This Super.com deal was found by Cheapflights users on 4/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/1211:30 pm
PHX
- MDW
1 stop9h 39m
Frontier
Deal found 4/24![Frontier logo]()
$99
This Super.com deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/137:40 am
PHX
- STL
1 stop8h 26m
Frontier
Deal found 4/23![Frontier logo]()
$99
This Cheapflightsfares deal was found by Cheapflights users on 4/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/97:40 pm
PHX
- ORD
1 stop8h 59m
Frontier
Deal found 4/25![Frontier logo]()
$100
This Southwest deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” 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 5/3011:55 pm
PHX
- MDW
Nonstop3h 05m
Southwest
Deal found 4/23![Southwest logo]()
$100
This Kiwi.com deal was found by Cheapflights users on 4/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/102:00 pm
PHX
- ORD
1 stop13h 32m
Frontier
Deal found 4/25![Frontier logo]()
$101
This Kiwi.com deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/2712:05 pm
PHX
- MDW
1 stop24h 07m
Frontier
Deal found 4/27![Frontier logo]()
$101
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 April 28, 2026.
Round-trip from | $178 (Kiwi.com) |
|---|---|
One-way from | $80 (Frontier) |
Popular in | December |
Cheapest in | February |
Average price | $277 |
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 April 28, 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
Tue 6/9
11:50 pm-5:17 am
Nonstop3h 27m
Chicago O'Hare Intl
Tue 7/21
9:30 pm-11:24 pm
Nonstop3h 54m
$255
PhoenixChicago
PHX - ORD
PHXORD
Phoenix Sky Harbor Intl
Tue 5/26
6:30 pm-11:55 pm
Nonstop3h 25m
Chicago O'Hare Intl
Wed 6/3
7:45 am-9:40 am
Nonstop3h 55m
$257
PhoenixChicago
PHX - ORD
PHXORD
Phoenix Sky Harbor Intl
Sat 7/18
7:10 am-12:48 pm
Nonstop3h 38m
Chicago O'Hare Intl
Tue 7/21
5:00 am-9:00 am
1 stop6h 00m
$265
PhoenixChicago
PHX - ORD
PHXORD
Phoenix Sky Harbor Intl
Wed 7/8
5:43 pm-11:25 pm
Nonstop3h 42m
Chicago O'Hare Intl
Tue 7/14
5:00 am-9:00 am
1 stop6h 00m
$265
PhoenixChicago
PHX - ORD
PHXORD
Phoenix Sky Harbor Intl
Thu 5/28
11:50 pm-5:17 am
Nonstop3h 27m
Chicago O'Hare Intl
Wed 6/3
6:10 pm-10:59 pm
1 stop6h 49m
$265
PhoenixChicago
PHX - ORD
PHXORD
Phoenix Sky Harbor Intl
Sat 5/23
7:53 pm-1:14 pm
1 stop15h 21m
Chicago O'Hare Intl
Wed 5/27
2:10 pm-7:10 pm
1 stop7h 00m
$267
PhoenixChicago
PHX - ORD
PHXORD
Phoenix Sky Harbor Intl
Tue 7/21
6:45 am-3:05 pm
1 stop6h 20m
Chicago O'Hare Intl
Tue 7/21
7:40 pm-11:31 pm
1 stop5h 51m
$275
PhoenixChicago
PHX - ORD
PHXORD
Phoenix Sky Harbor Intl
Wed 6/24
6:53 pm-1:21 pm
1 stop16h 28m
Chicago O'Hare Intl
Tue 6/30
6:20 am-12:23 pm
1 stop8h 03m
$275
Quickest round-trip
PhoenixChicago
PHX - MDW
PHXMDW
Phoenix Sky Harbor Intl
Tue 5/19
11:55 pm-5:00 am
Nonstop3h 05m
Chicago Midway
Fri 5/22
3:05 pm-4:50 pm
Nonstop3h 45m
$279
PhoenixChicago
PHX - MDW
PHXMDW
Phoenix Sky Harbor Intl
Wed 6/3
1:55 pm-9:45 pm
1 stop5h 50m
Chicago Midway
Tue 6/9
5:35 am-9:40 am
1 stop6h 05m
$280
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-ORD
PHX-MDW
PHX-STL
PHX-PIA
PHX-MLI
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-ORD
PHX-MDW
PHX-STL
PHX-PIA
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 April 28, 2026.
It’s typically best to fly out from Mesa to Illinois in the afternoon. Doing so could potentially save you 20% 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 April 25, 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 April 28, 2026.
The most flights from MS9 to USIL are scheduled on a Monday (52 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (30 on average).
How much does it cost to fly round-trip from Mesa to Illinois?
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 April 28, 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.
Comfort
8.0
Crew
8.6
Food
7.0
Entertainment
7.5
Overall
8.0
Boarding
8.1
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Comfort
8.0
Crew
8.6
Food
7.0
Entertainment
7.5
Overall
8.0
Boarding
8.1
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Comfort
8.0
Crew
8.6
Food
7.0
Entertainment
7.5
Overall
8.0
Boarding
8.1
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Comfort
8.0
Crew
8.6
Food
7.0
Entertainment
7.5
Overall
8.0
Boarding
8.1
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Comfort
8.0
Crew
8.6
Food
7.0
Entertainment
7.5
Overall
8.0
Boarding
8.1
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Comfort
8.0
Crew
8.6
Food
7.0
Entertainment
7.5
Overall
8.0
Boarding
8.1
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
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
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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
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Mesa and Illinois flights
Browse other Mesa and Illinois flight options. Last updated on April 28, 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 7 airlines flying from Mesa to Illinois
Discover the top 7 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 April 28, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$64 | Average$199 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$93 | Average$213 | FlexibilityNo cancel fee | On-time88% | |
| Cheapest$158 | Average$206 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$187 | Average$326 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$187 | Average$388 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$197 | Average$420 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$210 | Average$328 | FlexibilityNo cancel fee | On-time75% |