$111+ Cheap flights from Sacramento (SMF) 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 8/11. Fares are subject to change and may not be available on all flights or dates of travel.
SMF — ORD
Jul 15 — Jul 221
Round-trip
1 adult, Economy
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Cheapest flights from Sacramento to IllinoisExplore the most affordable flight options available from Sacramento to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 15, 2026.
Explore the most affordable flight options available from Sacramento to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 15, 2026.
This CheapOair deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/295:07 pm
SMF
- STL
1 stop23h 08m
Frontier
Sun 8/27:10 pm
STL
- SMF
1 stop25h 39m
Frontier
Deal found 6/10![Frontier logo]()
$270
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 8/195:10 pm
SMF
- STL
1 stop24h 26m
Frontier
Sun 8/238:21 pm
STL
- SMF
1 stop21h 54m
Frontier
Deal found 6/14![Frontier logo]()
$271
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.
Thu 8/69:25 am
SMF
- STL
1 stop7h 58m
Frontier
Wed 8/127:03 pm
STL
- SMF
1 stop25h 46m
Frontier
Deal found 6/12![Frontier logo]()
$275
This Southwest deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/1512:40 pm
SMF
- STL
1 stop8h 05m
Southwest
Wed 9/238:35 am
STL
- SMF
Nonstop4h 00m
Southwest
Deal found 6/10![Southwest logo]()
$277
This Kiwi.com deal was found by Cheapflights users on 6/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/78:08 pm
SMF
- STL
2 stops19h 57m
Frontier
Mon 7/137:10 pm
STL
- SMF
1 stop22h 54m
Frontier
Deal found 6/13![Frontier logo]()
$285
This CheapOair deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/276:28 pm
SMF
- STL
1 stop21h 37m
Frontier
Tue 8/47:03 pm
STL
- SMF
1 stop23h 08m
Frontier
Deal found 6/11![Frontier logo]()
$286
This Expedia deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/175:10 pm
SMF
- STL
1 stop18h 56m
Frontier
Thu 7/27:38 pm
STL
- SMF
1 stop17h 02m
Frontier
Deal found 6/11![Frontier logo]()
$291
This CheapOair deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/256:30 pm
SMF
- STL
1 stop17h 36m
Frontier
Mon 6/292:56 pm
STL
- SMF
1 stop27h 19m
Frontier
Deal found 6/10![Frontier logo]()
$295
This Southwest deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/63:00 pm
SMF
- STL
1 stop7h 45m
Southwest
Wed 8/128:35 am
STL
- SMF
Nonstop4h 00m
Southwest
Deal found 6/11![Southwest logo]()
$297
This CheapOair 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/165:10 pm
SMF
- STL
1 stop23h 41m
Frontier
Wed 7/87:03 pm
STL
- SMF
1 stop25h 46m
Frontier
Deal found 6/13![Frontier logo]()
$301
This Gotogate deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/306:28 pm
SMF
- STL
1 stop21h 47m
Frontier
Tue 8/47:03 pm
STL
- SMF
1 stop23h 08m
Frontier
Deal found 6/11![Frontier logo]()
$312
This American Airlines deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/55:31 am
SMF
- BMI
1 stop8h 48m
American Airlines
Sat 9/124:24 pm
BMI
- SMF
1 stop9h 10m
American Airlines
Deal found 6/12![American Airlines logo]()
$349
Best flights from Sacramento to IllinoisDiscover carefully curated flight deals from Sacramento to Illinois that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 15, 2026.
Discover carefully curated flight deals from Sacramento to Illinois that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 15, 2026.
This Delta deal was found by Cheapflights users on 6/14. 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 10/85:00 pm
SMF
- STL
1 stop5h 36m
Delta
Mon 10/127:55 pm
STL
- SMF
1 stop5h 50m
Delta
Deal found 6/14![Delta logo]()
$317
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.
Sat 7/114:19 pm
SMF
- STL
1 stop5h 28m
United Airlines
Sat 7/187:23 pm
STL
- SMF
1 stop6h 36m
United Airlines
Deal found 6/12![United Airlines logo]()
$317
This Southwest deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/164:40 pm
SMF
- STL
1 stop7h 15m
Southwest
Tue 7/216:55 pm
STL
- SMF
1 stop6h 10m
Southwest
Deal found 6/11![Southwest logo]()
$317
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 8/268:08 pm
SMF
- RFD
2 stops22h 37m
Multiple Airlines
Sun 8/309:35 pm
RFD
- SMF
1 stop20h 40m
Multiple Airlines
Deal found 6/14![Multiple Airlines logo]()
$409
This American Airlines deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/153:05 pm
SMF
- EVV
1 stop6h 54m
American Airlines
Wed 7/2212:46 pm
EVV
- SMF
1 stop10h 17m
American Airlines
Deal found 6/11![American Airlines logo]()
$470
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.
Sat 9/126:25 am
SMF
- STL
2 stops7h 00m
Southwest
Fri 9/185:55 am
STL
- SMF
1 stop7h 00m
Southwest
Deal found 6/14![Southwest logo]()
$322
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/512:16 pm
SMF
- BMI
1 stop7h 31m
Delta
Sat 9/126:01 am
BMI
- SMF
2 stops14h 32m
Delta
Deal found 6/12![Delta logo]()
$354
This United Airlines deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/2110:50 am
SMF
- ORD
1 stop9h 02m
United Airlines
Sat 10/244:10 pm
ORD
- SMF
Nonstop4h 38m
United Airlines
Deal found 6/10![United Airlines logo]()
$384
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.
Thu 8/63:00 pm
SMF
- STL
1 stop7h 45m
Southwest
Wed 8/128:35 am
STL
- SMF
2 stops9h 45m
Southwest
Deal found 6/12![Southwest logo]()
$353
This Delta deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/207:41 pm
SMF
- MDW
2 stops10h 58m
Delta
Mon 8/311:51 pm
MDW
- SMF
1 stop8h 44m
Delta
Deal found 6/10![Delta logo]()
$382
This United Airlines deal was found by Cheapflights users on 6/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/44:19 pm
SMF
- ORD
1 stop6h 25m
United Airlines
Wed 8/57:53 pm
ORD
- SMF
Nonstop4h 44m
United Airlines
Deal found 6/14![United Airlines logo]()
$401
This Kiwi.com deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/265:10 pm
SMF
- RFD
1 stop25h 35m
Multiple Airlines
Thu 9/39:29 pm
RFD
- SMF
1 stop20h 46m
Multiple Airlines
Deal found 6/10![Multiple Airlines logo]()
$460
This Delta deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/127:50 am
SMF
- ORD
2 stops11h 40m
Delta
Sun 8/167:29 am
ORD
- SMF
1 stop7h 59m
Delta
Deal found 6/10![Delta logo]()
$382
This American Airlines deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/1011:56 am
SMF
- BMI
2 stops9h 06m
American Airlines
Sat 10/176:39 pm
BMI
- SMF
1 stop6h 52m
American Airlines
Deal found 6/12![American Airlines logo]()
$473
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.
Sat 10/248:50 am
SMF
- MDW
Nonstop3h 55m
Southwest
Tue 10/2710:15 am
MDW
- SMF
Nonstop4h 30m
Southwest
Deal found 6/14![Southwest logo]()
$391
This United Airlines deal was found by Cheapflights users on 6/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/295:15 am
SMF
- STL
1 stop7h 01m
United Airlines
Sat 7/49:11 am
STL
- SMF
1 stop8h 06m
United Airlines
Deal found 6/13![United Airlines logo]()
$417
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 9/158:19 pm
SMF
- MLI
2 stops12h 04m
Delta
Mon 9/2111:09 am
MLI
- SMF
2 stops11h 20m
Delta
Deal found 6/14![Delta logo]()
$385
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.
Sat 8/225:10 pm
SMF
- RFD
1 stop25h 35m
Multiple Airlines
Sun 8/309:35 pm
RFD
- SMF
1 stop20h 40m
Multiple Airlines
Deal found 6/14![Multiple Airlines logo]()
$469
This Southwest deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/2111:50 pm
SMF
- MDW
Nonstop3h 55m
Southwest
Mon 8/245:55 pm
MDW
- SMF
1 stop6h 25m
Southwest
Deal found 6/10![Southwest logo]()
$396
This United Airlines deal was found by Cheapflights users on 6/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/1810:50 am
SMF
- STL
1 stop7h 56m
United Airlines
Wed 8/194:40 pm
STL
- SMF
1 stop7h 20m
United Airlines
Deal found 6/13![United Airlines logo]()
$417
This American Airlines deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/263:17 pm
SMF
- BMI
1 stop7h 18m
American Airlines
Tue 6/306:48 am
BMI
- SMF
2 stops10h 55m
American Airlines
Deal found 6/11![American Airlines logo]()
$508
This Delta deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/188:19 pm
SMF
- ORD
2 stops9h 43m
Delta
Mon 9/212:05 pm
ORD
- SMF
2 stops10h 39m
Delta
Deal found 6/11![Delta logo]()
$395
This American Airlines deal was found by Cheapflights users on 6/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/305:31 am
SMF
- EVV
1 stop9h 29m
American Airlines
Sat 7/45:19 am
EVV
- SMF
1 stop6h 49m
American Airlines
Deal found 6/14![American Airlines logo]()
$521
This Southwest deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/2211:50 pm
SMF
- MDW
Nonstop3h 55m
Southwest
Fri 9/255:55 pm
MDW
- SMF
1 stop6h 25m
Southwest
Deal found 6/12![Southwest logo]()
$435
This United Airlines deal was found by Cheapflights users on 6/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/19:20 am
SMF
- MLI
1 stop8h 11m
United Airlines
Sat 9/510:30 am
MLI
- SMF
2 stops12h 15m
United Airlines
Deal found 6/13![United Airlines logo]()
$436
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/712:16 pm
SMF
- MDW
1 stop8h 20m
Delta
Tue 8/111:51 pm
MDW
- SMF
1 stop8h 44m
Delta
Deal found 6/12![Delta logo]()
$409
This United Airlines deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/229:20 am
SMF
- ORD
Nonstop4h 14m
United Airlines
Fri 9/254:20 pm
ORD
- SMF
1 stop7h 39m
United Airlines
Deal found 6/12![United Airlines logo]()
$439
This American Airlines deal was found by Cheapflights users on 6/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/12:31 pm
SMF
- EVV
1 stop7h 00m
American Airlines
Sat 7/1112:46 pm
EVV
- SMF
1 stop10h 17m
American Airlines
Deal found 6/14![American Airlines logo]()
$551
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.
Sat 7/114:28 pm
SMF
- RFD
1 stop17h 56m
Multiple Airlines
Sun 7/199:19 am
RFD
- SMF
2 stops35h 30m
Multiple Airlines
Deal found 6/12![Multiple Airlines logo]()
$607
This Southwest deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/72:05 pm
SMF
- MDW
1 stop7h 05m
Southwest
Fri 7/109:55 pm
MDW
- SMF
Nonstop4h 30m
Southwest
Deal found 6/10![Southwest logo]()
$459
Last-minute flights from Sacramento to IllinoisDiscover last-minute flight deals from Sacramento to Illinois. Data last updated June 15, 2026 and is based on user searches.
Discover last-minute flight deals from Sacramento to Illinois. Data last updated June 15, 2026 and is based on user searches.
This CheapOair 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/165:10 pm
SMF
- STL
1 stop23h 41m
Frontier
Wed 7/87:03 pm
STL
- SMF
1 stop25h 46m
Frontier
Deal found 6/13![Frontier logo]()
$301
This Expedia deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/175:10 pm
SMF
- STL
1 stop18h 56m
Frontier
Thu 7/27:38 pm
STL
- SMF
1 stop17h 02m
Frontier
Deal found 6/11![Frontier logo]()
$291
This CheapOair deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/256:30 pm
SMF
- STL
1 stop17h 36m
Frontier
Mon 6/292:56 pm
STL
- SMF
1 stop27h 19m
Frontier
Deal found 6/10![Frontier logo]()
$295
This Expedia deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/296:30 pm
SMF
- STL
1 stop22h 21m
Multiple Airlines
Sat 7/45:37 pm
STL
- SMF
1 stop18h 11m
Multiple Airlines
Deal found 6/10![Multiple Airlines logo]()
$320
This Kiwi.com deal was found by Cheapflights users on 6/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/78:08 pm
SMF
- STL
2 stops19h 57m
Frontier
Mon 7/137:10 pm
STL
- SMF
1 stop22h 54m
Frontier
Deal found 6/13![Frontier logo]()
$285
This Southwest deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/164:40 pm
SMF
- STL
1 stop7h 15m
Southwest
Mon 7/207:20 pm
STL
- SMF
1 stop7h 20m
Southwest
Deal found 6/11![Southwest logo]()
$317
This Kiwi.com deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/166:28 pm
SMF
- STL
1 stop21h 47m
Frontier
Mon 8/37:10 pm
STL
- SMF
1 stop22h 54m
Frontier
Deal found 6/11![Frontier logo]()
$318
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.
Thu 7/236:28 pm
SMF
- STL
1 stop21h 47m
Frontier
Mon 7/277:10 pm
STL
- SMF
2 stops26h 13m
Frontier
Deal found 6/13![Frontier logo]()
$314
This CheapOair deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/276:28 pm
SMF
- STL
1 stop21h 37m
Frontier
Tue 8/47:03 pm
STL
- SMF
1 stop23h 08m
Frontier
Deal found 6/11![Frontier logo]()
$286
This CheapOair deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/295:07 pm
SMF
- STL
1 stop23h 08m
Frontier
Sun 8/27:10 pm
STL
- SMF
1 stop25h 39m
Frontier
Deal found 6/10![Frontier logo]()
$270
This Gotogate deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/306:28 pm
SMF
- STL
1 stop21h 47m
Frontier
Tue 8/47:03 pm
STL
- SMF
1 stop23h 08m
Frontier
Deal found 6/11![Frontier logo]()
$312
This CheapOair deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/306:28 pm
SMF
- STL
1 stop21h 47m
Frontier
Sun 8/27:10 pm
STL
- SMF
1 stop25h 39m
Frontier
Deal found 6/11![Frontier logo]()
$321
One-way flights from Sacramento to IllinoisSearch for one-way flight options from Sacramento to Illinois. Find affordable one-way fares based on user searches. Data last updated June 15, 2026.
Search for one-way flight options from Sacramento to Illinois. Find affordable one-way fares based on user searches. Data last updated June 15, 2026.
This Kiwi.com deal was found by Cheapflights users on 6/15. 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.
Tue 8/115:07 pm
SMF
- STL
1 stop22h 58m
Frontier
Deal found 6/15![Frontier logo]()
$111
This Kiwi.com deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/55:07 pm
SMF
- STL
1 stop23h 08m
Frontier
Deal found 6/10![Frontier logo]()
$117
This Delta deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/85:00 pm
SMF
- STL
1 stop5h 36m
Delta
Deal found 6/10![Delta logo]()
$119
This Priceline deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/69:25 am
SMF
- STL
1 stop7h 58m
Frontier
Deal found 6/10![Frontier logo]()
$121
This Delta deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/65:00 pm
SMF
- STL
1 stop5h 41m
Delta
Deal found 6/10![Delta logo]()
$125
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 8/139:25 am
SMF
- STL
1 stop7h 58m
Frontier
Deal found 6/13![Frontier logo]()
$130
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.
Tue 7/75:07 pm
SMF
- STL
1 stop22h 58m
Frontier
Deal found 6/12![Frontier logo]()
$135
This Expedia deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/85:07 pm
SMF
- STL
1 stop23h 08m
Frontier
Deal found 6/11![Frontier logo]()
$136
This Expedia 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/15:10 pm
SMF
- STL
1 stop16h 08m
Frontier
Deal found 6/13![Frontier logo]()
$139
This Trip.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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/296:30 pm
SMF
- STL
1 stop22h 21m
Frontier
Deal found 6/12![Frontier logo]()
$140
This Super.com 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/127:44 pm
SMF
- ORD
1 stop8h 33m
Frontier
Deal found 6/15![Frontier logo]()
$172
This Super.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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/107:44 pm
SMF
- ORD
1 stop8h 33m
Frontier
Deal found 6/13![Frontier logo]()
$173
Find flight deals from Sacramento to Illinois
Keep the following information in mind while searching for Sacramento to Illinois flight deals. Data was last updated June 15, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $270 (CheapOair) |
One-way from | $111 (Kiwi.com) |
Popular in | May |
Cheapest in | September |
Average price | $453 |
Cheapflights Fare Finder
Customize your flight search to find flights from Sacramento 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 15, 2026.
Use the filters below to find and compare flights from Sacramento to Illinois that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
SacramentoSt. Louis
SMF - STL
SMFSTL
Sacramento Intl
Thu 10/8
5:00 pm-12:36 am
1 stop5h 36m
Lambert-St Louis
Mon 10/12
7:55 pm-11:45 pm
1 stop5h 50m
$317
SacramentoSt. Louis
SMF - STL
SMFSTL
Sacramento Intl
Sat 7/11
4:19 pm-11:47 pm
1 stop5h 28m
Lambert-St Louis
Sat 7/18
7:23 pm-11:59 pm
1 stop6h 36m
$317
SacramentoSt. Louis
SMF - STL
SMFSTL
Sacramento Intl
Thu 7/16
4:40 pm-1:55 am
1 stop7h 15m
Lambert-St Louis
Tue 7/21
6:55 pm-11:05 pm
1 stop6h 10m
$317
SacramentoSt. Louis
SMF - STL
SMFSTL
Sacramento Intl
Sat 9/12
6:25 am-3:25 pm
2 stops7h 00m
Lambert-St Louis
Fri 9/18
5:55 am-10:55 am
1 stop7h 00m
$322
SacramentoSt. Louis
SMF - STL
SMFSTL
Sacramento Intl
Thu 8/6
3:00 pm-12:45 am
1 stop7h 45m
Lambert-St Louis
Wed 8/12
8:35 am-4:20 pm
2 stops9h 45m
$353
SacramentoBloomington
SMF - BMI
SMFBMI
Sacramento Intl
Sat 9/5
12:16 pm-9:47 pm
1 stop7h 31m
Bloomington-Normal
Sat 9/12
6:01 am-6:33 pm
2 stops14h 32m
$354
SacramentoChicago
SMF - MDW
SMFMDW
Sacramento Intl
Thu 8/20
7:41 pm-8:39 am
2 stops10h 58m
Chicago Midway
Mon 8/31
1:51 pm-8:35 pm
1 stop8h 44m
$382
SacramentoChicago
SMF - ORD
SMFORD
Sacramento Intl
Wed 8/12
7:50 am-9:30 pm
2 stops11h 40m
Chicago O'Hare Intl
Sun 8/16
7:29 am-1:28 pm
1 stop7h 59m
$382
SacramentoChicago
SMF - ORD
SMFORD
Sacramento Intl
Wed 10/21
10:50 am-9:52 pm
1 stop9h 02m
Chicago O'Hare Intl
Sat 10/24
4:10 pm-6:48 pm
Nonstop4h 38m
$384
SacramentoMoline
SMF - MLI
SMFMLI
Sacramento Intl
Tue 9/15
8:19 pm-10:23 am
2 stops12h 04m
Moline Quad-City
Mon 9/21
11:09 am-8:29 pm
2 stops11h 20m
$385
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Sacramento to Illinois
Have a flexible travel schedule? Discover the best time to fly to Illinois from Sacramento with our price prediction graph.
SMF-STL
SMF-BMI
SMF-ORD
SMF-RFD
SMF-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 Sacramento to Illinois
SMF-USIL
SMF-STL
SMF-BMI
SMF-ORD
SMF-RFD
What is the cheapest month to book a flight from Sacramento to Illinois?
Currently, September is the cheapest month in which you can book a flight from Sacramento to Illinois (average of $84). Flying from Sacramento to Illinois in November is currently the most expensive (average of $205). 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 SMF to IL?
Find hourly flight availability from Sacramento 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 15, 2026.
A simple way to save on the total cost of your ticket is to fly from Sacramento to Illinois in the evening. If you’re flexible enough to do this you can expect to save up to 4% on your trip compared to booking a flight at noon.
Weekly flight availability from Sacramento to Illinois
Explore weekly flight availability from Sacramento 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 15, 2026.
The most flights from SMF to USIL are scheduled on a Friday (14 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (7 on average).
How much does it cost to fly round-trip from Sacramento to Illinois?
How far ahead should I book a flight from Sacramento to Illinois?
To ensure you get the cheapest price possible for a flight from Sacramento to Illinois, you should look to book at least 78 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
What is the cheapest day to fly from Sacramento to Illinois?
Use this chart to determine the cheapest time to fly round-trip from Sacramento to Illinois. Price data was last updated on June 13, 2026.
Travelers seeking maximum savings on their Sacramento to Illinois flight should consider departing on Wednesday at noon when fares are most often at their lowest. Saturday at noon 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 15, 2026.
See what other customers who have flown with Alaska Airlines,Southwest, andDelta from Sacramento 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.
Crew
8.5
Entertainment
7.0
Overall
7.9
Comfort
7.8
Boarding
8.1
Food
7.0
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
Crew
8.5
Entertainment
7.0
Overall
7.9
Comfort
7.8
Boarding
8.1
Food
7.0
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
Crew
8.5
Entertainment
7.0
Overall
7.9
Comfort
7.8
Boarding
8.1
Food
7.0
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
Crew
8.5
Entertainment
7.0
Overall
7.9
Comfort
7.8
Boarding
8.1
Food
7.0
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
Crew
8.5
Entertainment
7.0
Overall
7.9
Comfort
7.8
Boarding
8.1
Food
7.0
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
Crew
8.5
Entertainment
7.0
Overall
7.9
Comfort
7.8
Boarding
8.1
Food
7.0
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
Related info for your journey
Find useful and relevant information for your journey from Sacramento 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 Sacramento 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.
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Find flights from Sacramento to Illinois, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Sacramento and Illinois flights
Browse other Sacramento and Illinois flight options. Last updated on June 15, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Sacramento to Illinois flights
Consider these flights traveling from Sacramento to Illinois.
Top 6 airlines flying from Sacramento to Illinois
Discover the top 6 airlines that operate flights from Sacramento 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 15, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$165 | Average$270 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$179 | Average$288 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$194 | Average$345 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$205 | Average$467 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$307 | Average$563 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$335 | Average$512 | FlexibilityNo cancel fee | On-time63% |