$86+ 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 5/7. Fares are subject to change and may not be available on all flights or dates of travel.
SMF — ORD
Apr 10 — Apr 171
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 March 11, 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 March 11, 2026.
This Southwest deal was found by Cheapflights users on 3/6. Clicking the “Pick Dates” 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 4/242:55 pm
SMF
- STL
1 stop6h 55m
Southwest
Mon 4/276:00 pm
STL
- SMF
1 stop8h 10m
Southwest
Deal found 3/6![Southwest logo]()
$257
This Delta deal was found by Cheapflights users on 3/8. Clicking the “Pick Dates” 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 6/46:00 am
SMF
- ORD
2 stops10h 05m
Delta
Mon 6/83:50 pm
ORD
- SMF
2 stops9h 46m
Delta
Deal found 3/8![Delta logo]()
$269
This CheapOair deal was found by Cheapflights users on 3/7. Clicking the “Pick Dates” 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 5/2712:28 pm
SMF
- STL
1 stop27h 17m
Frontier
Mon 6/16:40 pm
STL
- SMF
1 stop18h 53m
Frontier
Deal found 3/7![Frontier logo]()
$271
This Super.com deal was found by Cheapflights users on 3/10. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/1612:18 pm
SMF
- ORD
1 stop15h 32m
Frontier
Sun 4/197:21 pm
ORD
- SMF
1 stop16h 44m
Frontier
Deal found 3/10![Frontier logo]()
$271
This Southwest deal was found by Cheapflights users on 3/7. Clicking the “Pick Dates” 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 4/1511:00 pm
SMF
- STL
1 stop6h 55m
Southwest
Fri 4/175:45 am
STL
- SMF
1 stop6h 15m
Southwest
Deal found 3/7![Southwest logo]()
$272
This Alaska Airlines deal was found by Cheapflights users on 3/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/43:25 pm
SMF
- ORD
1 stop6h 30m
Alaska Airlines
Mon 6/87:59 pm
ORD
- SMF
1 stop15h 48m
Alaska Airlines
Deal found 3/8![Alaska Airlines logo]()
$272
This Orbitz deal was found by Cheapflights users on 3/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/1210:38 am
SMF
- ORD
2 stops11h 21m
Alaska Airlines
Mon 5/187:59 pm
ORD
- SMF
1 stop15h 48m
Alaska Airlines
Deal found 3/8![Alaska Airlines logo]()
$273
This Kiwi.com deal was found by Cheapflights users on 3/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/206:51 pm
SMF
- STL
2 stops33h 59m
Frontier
Sat 4/258:17 pm
STL
- SMF
1 stop17h 06m
Frontier
Deal found 3/10![Frontier logo]()
$274
This Kiwi.com deal was found by Cheapflights users on 3/10. 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.
Thu 4/2312:18 pm
SMF
- ORD
2 stops26h 42m
Frontier
Sun 4/267:21 pm
ORD
- SMF
1 stop16h 44m
Frontier
Deal found 3/10![Frontier logo]()
$274
This American Airlines deal was found by Cheapflights users on 3/7. Clicking the “Pick Dates” 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.
Mon 4/2012:34 am
SMF
- STL
1 stop9h 13m
American Airlines
Tue 4/285:20 am
STL
- SMF
1 stop7h 17m
American Airlines
Deal found 3/7![American Airlines logo]()
$276
This Delta deal was found by Cheapflights users on 3/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/1311:05 pm
SMF
- STL
1 stop8h 37m
Delta
Thu 4/166:45 pm
STL
- SMF
1 stop6h 45m
Delta
Deal found 3/9![Delta logo]()
$277
This Delta deal was found by Cheapflights users on 3/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/111:05 pm
SMF
- MDW
1 stop7h 42m
Delta
Wed 5/62:12 pm
MDW
- SMF
1 stop8h 23m
Delta
Deal found 3/10![Delta logo]()
$277
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 March 11, 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 March 11, 2026.
This Southwest deal was found by Cheapflights users on 3/7. Clicking the “Pick Dates” 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 4/1511:00 pm
SMF
- STL
1 stop6h 55m
Southwest
Fri 4/175:45 am
STL
- SMF
1 stop6h 15m
Southwest
Deal found 3/7![Southwest logo]()
$272
This Alaska Airlines deal was found by Cheapflights users on 3/7. Clicking the “Pick Dates” 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.
Mon 6/154:43 pm
SMF
- ORD
1 stop18h 41m
Alaska Airlines
Mon 6/227:59 pm
ORD
- SMF
1 stop15h 37m
Alaska Airlines
Deal found 3/7![Alaska Airlines logo]()
$272
This Delta deal was found by Cheapflights users on 3/9. Clicking the “Pick Dates” 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 6/107:50 pm
SMF
- ORD
2 stops9h 36m
Delta
Sun 6/287:00 am
ORD
- SMF
1 stop9h 06m
Delta
Deal found 3/9![Delta logo]()
$303
This American Airlines deal was found by Cheapflights users on 3/9. Clicking the “Pick Dates” 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.
Mon 4/63:24 pm
SMF
- MLI
1 stop6h 13m
American Airlines
Mon 4/136:41 pm
MLI
- SMF
1 stop6h 48m
American Airlines
Deal found 3/9![American Airlines logo]()
$329
This United Airlines deal was found by Cheapflights users on 3/6. Clicking the “Pick Dates” 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 5/211:59 pm
SMF
- PIA
1 stop8h 05m
United Airlines
Sat 5/91:35 pm
PIA
- SMF
2 stops9h 07m
United Airlines
Deal found 3/6![United Airlines logo]()
$334
This Delta deal was found by Cheapflights users on 3/6. Clicking the “Pick Dates” 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 5/76:08 am
SMF
- ORD
2 stops9h 57m
Delta
Sun 5/106:24 am
ORD
- SMF
2 stops9h 04m
Delta
Deal found 3/6![Delta logo]()
$308
This Southwest deal was found by Cheapflights users on 3/9. Clicking the “Pick Dates” 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 4/215:15 am
SMF
- STL
1 stop7h 35m
Southwest
Thu 4/237:20 pm
STL
- SMF
1 stop6h 10m
Southwest
Deal found 3/9![Southwest logo]()
$318
This American Airlines deal was found by Cheapflights users on 3/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/610:00 am
SMF
- MLI
2 stops11h 54m
American Airlines
Wed 5/206:40 pm
MLI
- SMF
1 stop6h 47m
American Airlines
Deal found 3/10![American Airlines logo]()
$334
This United Airlines deal was found by Cheapflights users on 3/10. 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.
Sat 5/1611:59 pm
SMF
- MLI
1 stop8h 05m
United Airlines
Sun 5/246:30 am
MLI
- SMF
1 stop7h 21m
United Airlines
Deal found 3/10![United Airlines logo]()
$349
This Delta deal was found by Cheapflights users on 3/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/187:41 pm
SMF
- STL
2 stops11h 48m
Delta
Thu 5/282:27 pm
STL
- SMF
1 stop5h 37m
Delta
Deal found 3/10![Delta logo]()
$321
This Alaska Airlines deal was found by Cheapflights users on 3/9. Clicking the “Pick Dates” 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.
Mon 5/47:51 pm
SMF
- STL
1 stop17h 59m
Alaska Airlines
Thu 5/74:46 pm
STL
- SMF
1 stop7h 22m
Alaska Airlines
Deal found 3/9![Alaska Airlines logo]()
$370
This Delta deal was found by Cheapflights users on 3/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/187:41 pm
SMF
- STL
2 stops11h 05m
Delta
Sat 5/235:00 pm
STL
- SMF
1 stop7h 23m
Delta
Deal found 3/10![Delta logo]()
$321
This United Airlines deal was found by Cheapflights users on 3/8. Clicking the “Pick Dates” 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 6/310:13 am
SMF
- STL
2 stops8h 30m
United Airlines
Sun 6/75:10 am
STL
- SMF
1 stop6h 25m
United Airlines
Deal found 3/8![United Airlines logo]()
$354
This Southwest deal was found by Cheapflights users on 3/6. Clicking the “Pick Dates” 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 4/411:05 pm
SMF
- STL
1 stop8h 35m
Southwest
Wed 4/88:30 am
STL
- SMF
Nonstop4h 15m
Southwest
Deal found 3/6![Southwest logo]()
$365
This Delta deal was found by Cheapflights users on 3/9. Clicking the “Pick Dates” 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 6/107:50 pm
SMF
- ORD
2 stops9h 36m
Delta
Sun 6/141:35 pm
ORD
- SMF
1 stop10h 21m
Delta
Deal found 3/9![Delta logo]()
$323
This United Airlines deal was found by Cheapflights users on 3/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/167:01 am
SMF
- BMI
1 stop8h 55m
United Airlines
Fri 5/222:58 pm
BMI
- SMF
1 stop9h 41m
United Airlines
Deal found 3/11![United Airlines logo]()
$365
This Southwest deal was found by Cheapflights users on 3/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/911:55 pm
SMF
- STL
1 stop7h 10m
Southwest
Mon 4/135:45 am
STL
- SMF
1 stop6h 15m
Southwest
Deal found 3/10![Southwest logo]()
$369
This KAYAK deal was found by Cheapflights users on 3/10. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/232:02 pm
SMF
- ORD
1 stop7h 57m
Alaska Airlines
Wed 3/256:00 am
ORD
- SMF
1 stop10h 17m
Alaska Airlines
Deal found 3/10![Alaska Airlines logo]()
$413
This American Airlines deal was found by Cheapflights users on 3/9. Clicking the “Pick Dates” 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 5/52:31 pm
SMF
- PIA
1 stop6h 42m
American Airlines
Wed 5/136:54 pm
PIA
- SMF
1 stop6h 33m
American Airlines
Deal found 3/9![American Airlines logo]()
$420
This United Airlines deal was found by Cheapflights users on 3/7. Clicking the “Pick Dates” 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 5/2011:59 pm
SMF
- STL
1 stop6h 42m
United Airlines
Mon 5/256:00 am
STL
- SMF
1 stop7h 51m
United Airlines
Deal found 3/7![United Airlines logo]()
$374
This American Airlines deal was found by Cheapflights users on 3/9. Clicking the “Pick Dates” 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 4/1110:00 am
SMF
- MLI
2 stops11h 29m
American Airlines
Mon 4/136:41 pm
MLI
- SMF
1 stop6h 48m
American Airlines
Deal found 3/9![American Airlines logo]()
$432
This Delta deal was found by Cheapflights users on 3/6. Clicking the “Pick Dates” 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 5/2311:04 pm
SMF
- ORD
2 stops10h 43m
Delta
Tue 5/268:42 am
ORD
- SMF
2 stops11h 22m
Delta
Deal found 3/6![Delta logo]()
$368
This Southwest deal was found by Cheapflights users on 3/6. Clicking the “Pick Dates” 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 4/31:20 pm
SMF
- STL
Nonstop3h 35m
Southwest
Fri 4/105:45 am
STL
- SMF
1 stop6h 15m
Southwest
Deal found 3/6![Southwest logo]()
$417
This American Airlines deal was found by Cheapflights users on 3/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/2011:59 pm
SMF
- MLI
1 stop8h 38m
American Airlines
Tue 6/2311:07 am
MLI
- SMF
2 stops13h 40m
American Airlines
Deal found 3/10![American Airlines logo]()
$452
This United Airlines deal was found by Cheapflights users on 3/6. Clicking the “Pick Dates” 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 4/1511:59 pm
SMF
- PIA
1 stop8h 03m
United Airlines
Sat 4/186:30 am
PIA
- SMF
1 stop7h 23m
United Airlines
Deal found 3/6![United Airlines logo]()
$419
This Delta deal was found by Cheapflights users on 3/7. Clicking the “Pick Dates” 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 4/96:15 am
SMF
- MDW
2 stops9h 39m
Delta
Mon 4/132:12 pm
MDW
- SMF
2 stops10h 53m
Delta
Deal found 3/7![Delta logo]()
$399
This Southwest deal was found by Cheapflights users on 3/8. Clicking the “Pick Dates” 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 4/2211:55 pm
SMF
- MDW
Nonstop3h 50m
Southwest
Thu 4/239:40 pm
MDW
- SMF
Nonstop4h 25m
Southwest
Deal found 3/8![Southwest logo]()
$439
This United Airlines deal was found by Cheapflights users on 3/6. Clicking the “Pick Dates” 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.
Sun 3/2911:59 pm
SMF
- MLI
1 stop7h 59m
United Airlines
Sat 4/43:20 pm
MLI
- SMF
1 stop9h 32m
United Airlines
Deal found 3/6![United Airlines logo]()
$419
This Delta deal was found by Cheapflights users on 3/8. Clicking the “Pick Dates” 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 6/255:00 pm
SMF
- STL
1 stop5h 36m
Delta
Mon 6/292:18 pm
STL
- SMF
1 stop9h 38m
Delta
Deal found 3/8![Delta logo]()
$409
This Southwest deal was found by Cheapflights users on 3/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/77:30 am
SMF
- ORD
2 stops9h 05m
Southwest
Tue 5/1210:30 am
ORD
- SMF
2 stops9h 20m
Southwest
Deal found 3/10![Southwest logo]()
$457
Last-minute flights from Sacramento to IllinoisDiscover last-minute flight deals from Sacramento to Illinois. Data last updated March 11, 2026 and is based on user searches.
Discover last-minute flight deals from Sacramento to Illinois. Data last updated March 11, 2026 and is based on user searches.
This Southwest deal was found by Cheapflights users on 3/10. 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.
Sat 4/44:15 pm
SMF
- STL
2 stops7h 40m
Southwest
Wed 4/88:35 am
STL
- SMF
1 stop8h 00m
Southwest
Deal found 3/10![Southwest logo]()
$282
This Expedia deal was found by Cheapflights users on 3/8. Clicking the “Pick Dates” 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 4/810:00 am
SMF
- ORD
1 stop11h 59m
Alaska Airlines
Fri 4/104:10 pm
ORD
- SMF
1 stop8h 48m
Alaska Airlines
Deal found 3/8![Alaska Airlines logo]()
$282
This Alaska Airlines deal was found by Cheapflights users on 3/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/97:17 am
SMF
- ORD
1 stop9h 45m
Alaska Airlines
Mon 4/137:59 pm
ORD
- SMF
1 stop15h 17m
Alaska Airlines
Deal found 3/8![Alaska Airlines logo]()
$272
This Delta deal was found by Cheapflights users on 3/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/1311:05 pm
SMF
- STL
1 stop8h 37m
Delta
Thu 4/166:45 pm
STL
- SMF
1 stop6h 45m
Delta
Deal found 3/9![Delta logo]()
$277
This Southwest deal was found by Cheapflights users on 3/7. Clicking the “Pick Dates” 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 4/1511:00 pm
SMF
- STL
1 stop6h 55m
Southwest
Fri 4/175:45 am
STL
- SMF
1 stop6h 15m
Southwest
Deal found 3/7![Southwest logo]()
$272
This Super.com deal was found by Cheapflights users on 3/10. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/1612:18 pm
SMF
- ORD
1 stop15h 32m
Frontier
Sun 4/197:21 pm
ORD
- SMF
1 stop16h 44m
Frontier
Deal found 3/10![Frontier logo]()
$271
This Expedia deal was found by Cheapflights users on 3/7. Clicking the “Pick Dates” 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.
Fri 4/176:30 pm
SMF
- ORD
1 stop9h 38m
Multiple Airlines
Mon 4/204:10 pm
ORD
- SMF
1 stop8h 48m
Multiple Airlines
Deal found 3/7![Multiple Airlines logo]()
$277
This Kiwi.com deal was found by Cheapflights users on 3/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/206:51 pm
SMF
- STL
2 stops33h 59m
Frontier
Sat 4/258:17 pm
STL
- SMF
1 stop17h 06m
Frontier
Deal found 3/10![Frontier logo]()
$274
This American Airlines deal was found by Cheapflights users on 3/7. Clicking the “Pick Dates” 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.
Mon 4/2012:34 am
SMF
- STL
1 stop9h 13m
American Airlines
Tue 4/285:20 am
STL
- SMF
1 stop7h 17m
American Airlines
Deal found 3/7![American Airlines logo]()
$276
This Delta deal was found by Cheapflights users on 3/6. Clicking the “Pick Dates” 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 4/2111:05 pm
SMF
- MDW
1 stop7h 42m
Delta
Fri 4/249:27 am
MDW
- SMF
2 stops11h 39m
Delta
Deal found 3/6![Delta logo]()
$282
This Kiwi.com deal was found by Cheapflights users on 3/10. 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.
Thu 4/2312:18 pm
SMF
- ORD
2 stops26h 42m
Frontier
Sun 4/267:21 pm
ORD
- SMF
1 stop16h 44m
Frontier
Deal found 3/10![Frontier logo]()
$274
This Southwest deal was found by Cheapflights users on 3/6. Clicking the “Pick Dates” 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 4/242:55 pm
SMF
- STL
1 stop6h 55m
Southwest
Mon 4/276:00 pm
STL
- SMF
1 stop8h 10m
Southwest
Deal found 3/6![Southwest logo]()
$257
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 March 11, 2026.
Search for one-way flight options from Sacramento to Illinois. Find affordable one-way fares based on user searches. Data last updated March 11, 2026.
This Alaska Airlines deal was found by Cheapflights users on 3/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/72:55 pm
SMF
- ORD
1 stop6h 48m
Alaska Airlines
Deal found 3/9![Alaska Airlines logo]()
$86
This Alaska Airlines deal was found by Cheapflights users on 3/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/213:41 pm
SMF
- ORD
1 stop19h 32m
Alaska Airlines
Deal found 3/8![Alaska Airlines logo]()
$91
This Kiwi.com deal was found by Cheapflights users on 3/6. Clicking the “Pick Dates” 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 5/411:03 am
SMF
- STL
1 stop6h 29m
Frontier
Deal found 3/6![Frontier logo]()
$95
This Priceline deal was found by Cheapflights users on 3/9. Clicking the “Pick Dates” 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.
Wed 5/277:41 pm
SMF
- ORD
1 stop7h 42m
Frontier
Deal found 3/9![Frontier logo]()
$95
This Alaska Airlines deal was found by Cheapflights users on 3/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/412:54 pm
SMF
- ORD
1 stop8h 49m
Alaska Airlines
Deal found 3/10![Alaska Airlines logo]()
$96
This Alaska Airlines deal was found by Cheapflights users on 3/9. Clicking the “Pick Dates” 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 5/612:52 pm
SMF
- ORD
1 stop9h 07m
Alaska Airlines
Deal found 3/9![Alaska Airlines logo]()
$98
This Kiwi.com deal was found by Cheapflights users on 3/9. Clicking the “Pick Dates” 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 5/812:04 pm
SMF
- STL
1 stop29h 08m
Frontier
Deal found 3/9![Frontier logo]()
$99
This Kiwi.com deal was found by Cheapflights users on 3/9. Clicking the “Pick Dates” 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 4/2312:18 pm
SMF
- MDW
2 stops31h 32m
Frontier
Deal found 3/9![Frontier logo]()
$99
This Super.com deal was found by Cheapflights users on 3/6. Clicking the “Pick Dates” 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 4/1612:18 pm
SMF
- ORD
1 stop15h 32m
Frontier
Deal found 3/6![Frontier logo]()
$100
This Kiwi.com deal was found by Cheapflights users on 3/7. Clicking the “Pick Dates” 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 5/711:51 am
SMF
- MDW
2 stops24h 58m
Frontier
Deal found 3/7![Frontier logo]()
$101
This Kiwi.com deal was found by Cheapflights users on 3/6. Clicking the “Pick Dates” 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 5/811:51 am
SMF
- ORD
1 stop15h 59m
Frontier
Deal found 3/6![Frontier logo]()
$104
This Frontier deal was found by Cheapflights users on 3/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/108:16 pm
SMF
- ORD
1 stop8h 23m
Frontier
Deal found 3/11![Frontier logo]()
$105
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 March 11, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $257 (American Airlines) |
One-way from | $86 (Alaska Airlines) |
Popular in | November |
Cheapest in | September |
Average price | $397 |
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 March 11, 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
Wed 4/15
11:00 pm-7:55 am
1 stop6h 55m
Lambert-St Louis
Fri 4/17
5:45 am-10:00 am
1 stop6h 15m
$272
SacramentoChicago
SMF - ORD
SMFORD
Sacramento Intl
Mon 6/15
4:43 pm-1:24 pm
1 stop18h 41m
Chicago O'Hare Intl
Mon 6/22
7:59 pm-9:36 am
1 stop15h 37m
$272
SacramentoChicago
SMF - ORD
SMFORD
Sacramento Intl
Wed 6/10
7:50 pm-7:26 am
2 stops9h 36m
Chicago O'Hare Intl
Sun 6/28
7:00 am-2:06 pm
1 stop9h 06m
$303
SacramentoChicago
SMF - ORD
SMFORD
Sacramento Intl
Thu 5/7
6:08 am-6:05 pm
2 stops9h 57m
Chicago O'Hare Intl
Sun 5/10
6:24 am-1:28 pm
2 stops9h 04m
$308
SacramentoSt. Louis
SMF - STL
SMFSTL
Sacramento Intl
Tue 4/21
5:15 am-2:50 pm
1 stop7h 35m
Lambert-St Louis
Thu 4/23
7:20 pm-11:30 pm
1 stop6h 10m
$318
SacramentoSt. Louis
SMF - STL
SMFSTL
Sacramento Intl
Mon 5/18
7:41 pm-9:29 am
2 stops11h 48m
Lambert-St Louis
Thu 5/28
2:27 pm-6:04 pm
1 stop5h 37m
$321
SacramentoSt. Louis
SMF - STL
SMFSTL
Sacramento Intl
Mon 5/18
7:41 pm-8:46 am
2 stops11h 05m
Lambert-St Louis
Sat 5/23
5:00 pm-10:23 pm
1 stop7h 23m
$321
SacramentoChicago
SMF - ORD
SMFORD
Sacramento Intl
Wed 6/10
7:50 pm-7:26 am
2 stops9h 36m
Chicago O'Hare Intl
Sun 6/14
1:35 pm-9:56 pm
1 stop10h 21m
$323
SacramentoMoline
SMF - MLI
SMFMLI
Sacramento Intl
Mon 4/6
3:24 pm-11:37 pm
1 stop6h 13m
Moline Quad-City
Mon 4/13
6:41 pm-11:29 pm
1 stop6h 48m
$329
SacramentoPeoria
SMF - PIA
SMFPIA
Sacramento Intl
Sat 5/2
11:59 pm-10:04 am
1 stop8h 05m
Greater Peoria
Sat 5/9
1:35 pm-8:42 pm
2 stops9h 07m
$334
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-ORD
SMF-MDW
SMF-MLI
SMF-PIA
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-ORD
SMF-MDW
SMF-MLI
What is the cheapest month to book a flight from Sacramento to Illinois?
Currently, April is the cheapest month in which you can book a flight from Sacramento to Illinois (average of $112). Flying from Sacramento to Illinois in December is currently the most expensive (average of $233). 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 March 11, 2026.
A simple way to save on the total cost of your ticket is to fly from Sacramento to Illinois in the afternoon. If you’re flexible enough to do this you can expect to save up to 8% on your trip compared to booking a flight in the evening.
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 February 21, 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. Sunday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.
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 March 11, 2026.
The most flights from SMF to USIL are scheduled on a Monday (7 on average). You will have fewer flight options on Friday, which is when the least amount of flights are scheduled (4 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 11, 2026.
See what other customers who have flown with Southwest,Delta, andUnited Airlines 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.
Entertainment
7.5
Comfort
8.0
Food
7.0
Overall
8.0
Boarding
8.1
Crew
8.6
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Entertainment
7.5
Comfort
8.0
Food
7.0
Overall
8.0
Boarding
8.1
Crew
8.6
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Entertainment
7.5
Comfort
8.0
Food
7.0
Overall
8.0
Boarding
8.1
Crew
8.6
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Entertainment
7.5
Comfort
8.0
Food
7.0
Overall
8.0
Boarding
8.1
Crew
8.6
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Entertainment
7.5
Comfort
8.0
Food
7.0
Overall
8.0
Boarding
8.1
Crew
8.6
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Entertainment
7.5
Comfort
8.0
Food
7.0
Overall
8.0
Boarding
8.1
Crew
8.6
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
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
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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 March 11, 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 7 airlines flying from Sacramento to Illinois
Discover the top 7 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 March 11, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$158 | Average$258 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$171 | Average$233 | FlexibilityNo cancel fee | On-time65% | |
| Cheapest$194 | Average$359 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$205 | Average$476 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$235 | Average$352 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$276 | Average$470 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$332 | Average$494 | FlexibilityNo cancel fee | On-time63% |