$69+ 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 8/29. Fares are subject to change and may not be available on all flights or dates of travel.
SMF — ORD
Aug 29 — Sep 51
Round-trip
1 adult, Economy
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Find cheap flights from Sacramento to Illinois with Cheapflights
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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 July 30, 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 July 30, 2026.
This Expedia deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” 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.
Tue 9/18:08 am
SMF
- STL
1 stop7h 02m
Alaska Airlines
Tue 9/86:08 pm
STL
- SMF
1 stop18h 49m
Alaska Airlines
Deal found 7/29![Alaska Airlines logo]()
$137
This Priceline deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” 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 9/98:08 am
SMF
- STL
1 stop7h 02m
Alaska Airlines
Thu 9/176:29 am
STL
- SMF
1 stop7h 29m
Alaska Airlines
Deal found 7/29![Alaska Airlines logo]()
$157
This Expedia deal was found by Cheapflights users on 7/28. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/278:08 am
SMF
- STL
1 stop7h 02m
Alaska Airlines
Mon 8/316:08 pm
STL
- SMF
1 stop18h 46m
Alaska Airlines
Deal found 7/28![Alaska Airlines logo]()
$177
This Booking.com deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/16:00 am
SMF
- STL
1 stop10h 38m
Alaska Airlines
Tue 10/67:02 am
STL
- SMF
2 stops12h 18m
Alaska Airlines
Deal found 7/30![Alaska Airlines logo]()
$205
This Orbitz deal was found by Cheapflights users on 7/28. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/288:01 pm
SMF
- STL
2 stops19h 09m
Alaska Airlines
Mon 8/317:36 pm
STL
- SMF
1 stop15h 41m
Alaska Airlines
Deal found 7/28![Alaska Airlines logo]()
$215
This Priceline deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” 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 10/18:03 am
SMF
- STL
1 stop8h 35m
Multiple Airlines
Tue 10/612:17 pm
STL
- SMF
1 stop7h 11m
Multiple Airlines
Deal found 7/30![Multiple Airlines logo]()
$233
This Kiwi.com deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/1411:52 am
SMF
- STL
1 stop29h 23m
Frontier
Mon 10/198:10 pm
STL
- SMF
2 stops24h 10m
Frontier
Deal found 7/29![Frontier logo]()
$265
This Expedia deal was found by Cheapflights users on 7/26. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/96:23 pm
SMF
- STL
1 stop14h 54m
Frontier
Wed 9/2312:17 pm
STL
- SMF
1 stop7h 11m
Frontier
Deal found 7/26![Frontier logo]()
$278
This American Airlines deal was found by Cheapflights users on 7/26. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/125:45 am
SMF
- MLI
1 stop8h 18m
American Airlines
Sat 9/194:33 pm
MLI
- SMF
1 stop9h 01m
American Airlines
Deal found 7/26![American Airlines logo]()
$341
This Alaska Airlines deal was found by Cheapflights users on 7/25. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/187:23 am
SMF
- ORD
1 stop9h 34m
Alaska Airlines
Mon 8/246:01 am
ORD
- SMF
1 stop8h 14m
Alaska Airlines
Deal found 7/25![Alaska Airlines logo]()
$349
This American Airlines deal was found by Cheapflights users on 7/27. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/143:08 pm
SMF
- MLI
1 stop6h 57m
American Airlines
Sat 9/194:33 pm
MLI
- SMF
1 stop9h 01m
American Airlines
Deal found 7/27![American Airlines logo]()
$350
This Frontier deal was found by Cheapflights users on 7/25. 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 8/55:07 pm
SMF
- ORD
1 stop10h 30m
Frontier
Wed 8/129:57 pm
ORD
- SMF
1 stop12h 39m
Frontier
Deal found 7/25![Frontier logo]()
$350
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 July 30, 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 July 30, 2026.
This Delta deal was found by Cheapflights users on 7/26. 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.
Wed 9/97:41 pm
SMF
- STL
2 stops12h 42m
Delta
Wed 9/232:25 pm
STL
- SMF
2 stops10h 20m
Delta
Deal found 7/26![Delta logo]()
$313
This Alaska Airlines deal was found by Cheapflights users on 7/26. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/176:52 am
SMF
- STL
2 stops15h 07m
Alaska Airlines
Mon 9/216:29 am
STL
- SMF
1 stop9h 36m
Alaska Airlines
Deal found 7/26![Alaska Airlines logo]()
$345
This Southwest deal was found by Cheapflights users on 7/26. 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.
Sat 9/56:30 pm
SMF
- MDW
1 stop8h 55m
Southwest
Fri 9/115:00 pm
MDW
- SMF
2 stops7h 35m
Southwest
Deal found 7/26![Southwest logo]()
$352
This American Airlines deal was found by Cheapflights users on 7/26. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/253:08 pm
SMF
- BMI
1 stop6h 55m
American Airlines
Mon 9/284:24 pm
BMI
- SMF
1 stop9h 10m
American Airlines
Deal found 7/26![American Airlines logo]()
$359
This Kiwi.com deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/276:29 pm
SMF
- RFD
2 stops14h 54m
Multiple Airlines
Sun 8/309:35 pm
RFD
- SMF
1 stop23h 17m
Multiple Airlines
Deal found 7/29![Multiple Airlines logo]()
$362
This United Airlines deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/279:20 am
SMF
- ORD
Nonstop4h 14m
United Airlines
Sat 9/53:40 pm
ORD
- SMF
Nonstop4h 38m
United Airlines
Deal found 7/29![United Airlines logo]()
$375
This Alaska Airlines deal was found by Cheapflights users on 7/27. 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.
Sun 10/187:59 pm
SMF
- ORD
1 stop15h 26m
Alaska Airlines
Tue 10/202:21 pm
ORD
- SMF
1 stop7h 01m
Alaska Airlines
Deal found 7/27![Alaska Airlines logo]()
$368
This United Airlines deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/2812:57 pm
SMF
- MLI
1 stop6h 04m
United Airlines
Mon 8/313:44 pm
MLI
- SMF
2 stops9h 15m
United Airlines
Deal found 7/29![United Airlines logo]()
$384
This Southwest deal was found by Cheapflights users on 7/27. 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 10/278:30 pm
SMF
- MDW
1 stop7h 10m
Southwest
Fri 10/307:45 am
MDW
- SMF
2 stops8h 00m
Southwest
Deal found 7/27![Southwest logo]()
$390
This Delta deal was found by Cheapflights users on 7/26. 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.
Sat 11/216:00 am
SMF
- ORD
2 stops12h 48m
Delta
Thu 11/263:45 pm
ORD
- SMF
1 stop6h 30m
Delta
Deal found 7/26![Delta logo]()
$394
This Alaska Airlines deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” 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 8/2712:52 pm
SMF
- ORD
1 stop9h 07m
Alaska Airlines
Thu 9/32:18 pm
ORD
- SMF
1 stop7h 06m
Alaska Airlines
Deal found 7/29![Alaska Airlines logo]()
$369
This American Airlines deal was found by Cheapflights users on 7/26. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/202:35 pm
SMF
- EVV
1 stop6h 41m
American Airlines
Tue 10/277:01 am
EVV
- SMF
1 stop8h 01m
American Airlines
Deal found 7/26![American Airlines logo]()
$429
This Kiwi.com deal was found by Cheapflights users on 7/27. 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.
Thu 9/178:37 am
SMF
- RFD
1 stop10h 02m
Multiple Airlines
Sun 9/209:29 pm
RFD
- SMF
1 stop23h 30m
Multiple Airlines
Deal found 7/27![Multiple Airlines logo]()
$442
This Southwest deal was found by Cheapflights users on 7/27. 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 9/1611:50 pm
SMF
- MDW
Nonstop3h 55m
Southwest
Wed 9/238:50 pm
MDW
- SMF
Nonstop4h 25m
Southwest
Deal found 7/27![Southwest logo]()
$403
This United Airlines deal was found by Cheapflights users on 7/25. 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.
Sat 8/152:23 pm
SMF
- ORD
Nonstop4h 15m
United Airlines
Sat 8/224:20 pm
ORD
- SMF
1 stop6h 40m
United Airlines
Deal found 7/25![United Airlines logo]()
$413
This Alaska Airlines deal was found by Cheapflights users on 7/28. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/2112:52 pm
SMF
- ORD
1 stop9h 07m
Alaska Airlines
Mon 8/242:18 pm
ORD
- SMF
1 stop21h 50m
Alaska Airlines
Deal found 7/28![Alaska Airlines logo]()
$376
This Delta deal was found by Cheapflights users on 7/25. 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.
Sat 8/229:27 am
SMF
- ORD
2 stops10h 06m
Delta
Mon 8/242:36 pm
ORD
- SMF
1 stop7h 04m
Delta
Deal found 7/25![Delta logo]()
$438
This Kiwi.com deal was found by Cheapflights users on 7/27. 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.
Sun 9/138:37 am
SMF
- RFD
1 stop10h 02m
Multiple Airlines
Wed 9/162:09 pm
RFD
- SMF
2 stops30h 50m
Multiple Airlines
Deal found 7/27![Multiple Airlines logo]()
$453
This Southwest deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” 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 10/1411:55 pm
SMF
- MDW
Nonstop3h 55m
Southwest
Mon 10/1911:55 am
MDW
- SMF
1 stop7h 55m
Southwest
Deal found 7/30![Southwest logo]()
$413
This United Airlines deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” 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 11/242:13 pm
SMF
- ORD
Nonstop4h 16m
United Airlines
Tue 12/15:00 am
ORD
- SMF
1 stop6h 31m
United Airlines
Deal found 7/29![United Airlines logo]()
$417
This Delta deal was found by Cheapflights users on 7/26. 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.
Tue 10/206:52 pm
SMF
- EVV
2 stops12h 36m
Delta
Tue 10/2710:07 am
EVV
- SMF
2 stops11h 30m
Delta
Deal found 7/26![Delta logo]()
$439
This American Airlines deal was found by Cheapflights users on 7/27. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/115:31 am
SMF
- BMI
1 stop8h 48m
American Airlines
Sat 8/156:32 am
BMI
- SMF
1 stop9h 23m
American Airlines
Deal found 7/27![American Airlines logo]()
$483
This Southwest deal was found by Cheapflights users on 7/26. 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.
Wed 9/912:15 pm
SMF
- STL
Nonstop3h 35m
Southwest
Wed 9/238:35 am
STL
- SMF
Nonstop4h 00m
Southwest
Deal found 7/26![Southwest logo]()
$417
This United Airlines deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” 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 9/95:00 am
SMF
- STL
1 stop5h 40m
United Airlines
Wed 9/95:30 pm
STL
- SMF
1 stop7h 16m
United Airlines
Deal found 7/29![United Airlines logo]()
$422
This Kiwi.com deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/206:29 pm
SMF
- RFD
2 stops15h 54m
Multiple Airlines
Thu 8/279:35 pm
RFD
- SMF
1 stop23h 17m
Multiple Airlines
Deal found 7/29![Multiple Airlines logo]()
$488
This Alaska Airlines deal was found by Cheapflights users on 7/28. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/134:43 pm
SMF
- ORD
1 stop18h 38m
Alaska Airlines
Sat 8/156:00 am
ORD
- SMF
1 stop8h 10m
Alaska Airlines
Deal found 7/28![Alaska Airlines logo]()
$445
This American Airlines deal was found by Cheapflights users on 7/25. 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 10/13:08 pm
SMF
- MLI
1 stop6h 57m
American Airlines
Thu 10/811:33 am
MLI
- SMF
2 stops13h 08m
American Airlines
Deal found 7/25![American Airlines logo]()
$492
This Delta deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” 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 8/208:40 pm
SMF
- MDW
2 stops9h 59m
Delta
Mon 8/311:51 pm
MDW
- SMF
1 stop8h 44m
Delta
Deal found 7/30![Delta logo]()
$456
This Southwest deal was found by Cheapflights users on 7/27. 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.
Sat 9/197:15 am
SMF
- MDW
1 stop6h 50m
Southwest
Mon 9/215:55 pm
MDW
- SMF
1 stop6h 30m
Southwest
Deal found 7/27![Southwest logo]()
$418
This United Airlines deal was found by Cheapflights users on 7/26. 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 9/52:23 pm
SMF
- ORD
Nonstop4h 15m
United Airlines
Fri 9/113:40 pm
ORD
- SMF
Nonstop4h 38m
United Airlines
Deal found 7/26![United Airlines logo]()
$427
Last-minute flights from Sacramento to IllinoisDiscover last-minute flight deals from Sacramento to Illinois. Data last updated July 30, 2026 and is based on user searches.
Discover last-minute flight deals from Sacramento to Illinois. Data last updated July 30, 2026 and is based on user searches.
This Frontier deal was found by Cheapflights users on 7/25. 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 8/55:07 pm
SMF
- ORD
1 stop10h 30m
Frontier
Wed 8/129:57 pm
ORD
- SMF
1 stop12h 39m
Frontier
Deal found 7/25![Frontier logo]()
$350
This CheapOair deal was found by Cheapflights users on 7/27. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/1011:25 am
SMF
- STL
1 stop5h 58m
Frontier
Thu 8/138:08 pm
STL
- SMF
1 stop16h 27m
Frontier
Deal found 7/27![Frontier logo]()
$358
This Kiwi.com deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” 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 8/167:44 pm
SMF
- ORD
1 stop8h 33m
Frontier
Wed 8/192:41 pm
ORD
- SMF
2 stops28h 53m
Frontier
Deal found 7/29![Frontier logo]()
$352
This CheapOair deal was found by Cheapflights users on 7/25. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/166:28 pm
SMF
- STL
1 stop21h 47m
Frontier
Fri 8/217:58 pm
STL
- SMF
1 stop16h 59m
Frontier
Deal found 7/25![Frontier logo]()
$355
This Kiwi.com deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” 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 8/167:44 pm
SMF
- ORD
1 stop8h 33m
Frontier
Thu 8/202:41 pm
ORD
- SMF
1 stop22h 16m
Frontier
Deal found 7/29![Frontier logo]()
$357
This Trip.com deal was found by Cheapflights users on 7/28. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/176:28 pm
SMF
- ORD
1 stop9h 09m
Frontier
Thu 8/202:41 pm
ORD
- SMF
1 stop22h 16m
Frontier
Deal found 7/28![Frontier logo]()
$354
This Alaska Airlines deal was found by Cheapflights users on 7/25. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/187:23 am
SMF
- ORD
1 stop9h 34m
Alaska Airlines
Mon 8/246:01 am
ORD
- SMF
1 stop8h 14m
Alaska Airlines
Deal found 7/25![Alaska Airlines logo]()
$349
This Super.com deal was found by Cheapflights users on 7/26. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/237:47 pm
SMF
- ORD
1 stop8h 12m
Frontier
Sun 8/308:11 pm
ORD
- SMF
1 stop24h 41m
Frontier
Deal found 7/26![Frontier logo]()
$358
This CheapOair deal was found by Cheapflights users on 7/28. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/246:23 pm
SMF
- STL
1 stop21h 27m
Frontier
Wed 8/266:45 pm
STL
- SMF
1 stop26h 07m
Frontier
Deal found 7/28![Frontier logo]()
$288
This Expedia deal was found by Cheapflights users on 7/28. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/278:08 am
SMF
- STL
1 stop7h 02m
Alaska Airlines
Mon 8/316:08 pm
STL
- SMF
1 stop18h 46m
Alaska Airlines
Deal found 7/28![Alaska Airlines logo]()
$177
This Orbitz deal was found by Cheapflights users on 7/28. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/288:01 pm
SMF
- STL
2 stops19h 09m
Alaska Airlines
Mon 8/317:36 pm
STL
- SMF
1 stop15h 41m
Alaska Airlines
Deal found 7/28![Alaska Airlines logo]()
$215
This Super.com deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” 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 8/287:47 pm
SMF
- ORD
1 stop8h 30m
Frontier
Sun 8/309:20 pm
ORD
- SMF
1 stop22h 18m
Frontier
Deal found 7/30![Frontier logo]()
$355
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 July 30, 2026.
Search for one-way flight options from Sacramento to Illinois. Find affordable one-way fares based on user searches. Data last updated July 30, 2026.
This Alaska Airlines deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/298:08 am
SMF
- STL
1 stop7h 02m
Alaska Airlines
Deal found 7/29![Alaska Airlines logo]()
$69
This Alaska Airlines deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” 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 10/18:03 am
SMF
- STL
1 stop8h 35m
Alaska Airlines
Deal found 7/29![Alaska Airlines logo]()
$89
This Expedia deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” 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 8/285:10 pm
SMF
- STL
1 stop18h 56m
Alaska Airlines
Deal found 7/29![Alaska Airlines logo]()
$94
This Expedia deal was found by Cheapflights users on 7/28. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/288:13 am
SMF
- STL
2 stops13h 46m
Alaska Airlines
Deal found 7/28![Alaska Airlines logo]()
$117
This Expedia deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” 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.
Tue 9/225:00 pm
SMF
- STL
2 stops22h 10m
Alaska Airlines
Deal found 7/29![Alaska Airlines logo]()
$123
This Kiwi.com deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” 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 10/277:27 pm
SMF
- STL
2 stops45h 48m
Frontier
Deal found 7/30![Frontier logo]()
$127
This Kiwi.com deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” 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 9/287:44 pm
SMF
- STL
2 stops45h 33m
Frontier
Deal found 7/29![Frontier logo]()
$128
This Kiwi.com deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” 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 8/307:47 pm
SMF
- STL
2 stops21h 26m
Frontier
Deal found 7/30![Frontier logo]()
$129
This Kiwi.com deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” 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 8/1911:42 am
SMF
- STL
1 stop29h 31m
Frontier
Deal found 7/29![Frontier logo]()
$135
This Frontier deal was found by Cheapflights users on 7/26. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2711:42 am
SMF
- STL
1 stop5h 31m
Frontier
Deal found 7/26![Frontier logo]()
$139
This Kiwi.com deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/277:47 pm
SMF
- MDW
2 stops13h 08m
Frontier
Deal found 7/29![Frontier logo]()
$176
This Booking.com deal was found by Cheapflights users on 7/26. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/217:47 pm
SMF
- ORD
1 stop8h 30m
Frontier
Deal found 7/26![Frontier logo]()
$176
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 July 30, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $137 (Expedia) |
One-way from | $69 (Alaska Airlines) |
Popular in | July |
Cheapest in | September |
Average price | $464 |
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 July 30, 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 9/9
7:41 pm-10:23 am
2 stops12h 42m
Lambert-St Louis
Wed 9/23
2:25 pm-10:45 pm
2 stops10h 20m
$313
SacramentoSt. Louis
SMF - STL
SMFSTL
Sacramento Intl
Thu 9/17
6:52 am-11:59 pm
2 stops15h 07m
Lambert-St Louis
Mon 9/21
6:29 am-2:05 pm
1 stop9h 36m
$345
SacramentoChicago
SMF - MDW
SMFMDW
Sacramento Intl
Sat 9/5
6:30 pm-5:25 am
1 stop8h 55m
Chicago Midway
Fri 9/11
5:00 pm-10:35 pm
2 stops7h 35m
$352
SacramentoBloomington
SMF - BMI
SMFBMI
Sacramento Intl
Fri 9/25
3:08 pm-12:03 am
1 stop6h 55m
Bloomington-Normal
Mon 9/28
4:24 pm-11:34 pm
1 stop9h 10m
$359
SacramentoChicago
SMF - RFD
SMFRFD
Sacramento Intl
Thu 8/27
6:29 pm-11:23 am
2 stops14h 54m
Chicago Greater Rockford
Sun 8/30
9:35 pm-6:52 pm
1 stop23h 17m
$362
SacramentoChicago
SMF - ORD
SMFORD
Sacramento Intl
Sun 10/18
7:59 pm-1:25 pm
1 stop15h 26m
Chicago O'Hare Intl
Tue 10/20
2:21 pm-7:22 pm
1 stop7h 01m
$368
SacramentoChicago
SMF - ORD
SMFORD
Sacramento Intl
Thu 8/27
12:52 pm-11:59 pm
1 stop9h 07m
Chicago O'Hare Intl
Thu 9/3
2:18 pm-7:24 pm
1 stop7h 06m
$369
SacramentoChicago
SMF - ORD
SMFORD
Sacramento Intl
Thu 8/27
9:20 am-3:34 pm
Nonstop4h 14m
Chicago O'Hare Intl
Sat 9/5
3:40 pm-6:18 pm
Nonstop4h 38m
$375
SacramentoChicago
SMF - ORD
SMFORD
Sacramento Intl
Fri 8/21
12:52 pm-11:59 pm
1 stop9h 07m
Chicago O'Hare Intl
Mon 8/24
2:18 pm-10:08 am
1 stop21h 50m
$376
SacramentoMoline
SMF - MLI
SMFMLI
Sacramento Intl
Fri 8/28
12:57 pm-9:01 pm
1 stop6h 04m
Moline Quad-City
Mon 8/31
3:44 pm-10:59 pm
2 stops9h 15m
$384
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-MDW
SMF-BMI
SMF-RFD
SMF-ORD
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-MDW
SMF-BMI
SMF-RFD
What is the cheapest month to book a flight from Sacramento to Illinois?
Currently, August is the cheapest month in which you can book a flight from Sacramento to Illinois (average of $407). Flying from Sacramento to Illinois in July is currently the most expensive (average of $518). 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 July 30, 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 28% on your trip compared to booking a flight in the afternoon.
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 July 30, 2026.
The most flights from SMF to USIL are scheduled on a Thursday (13 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (4 on average).
How much does it cost to fly round-trip from Sacramento to Illinois?
Airfare is typical for this route at the moment.
Sacramento to Illinois flights typically cost between $275 and $539 in August.The cheapest round-trip price found within the last 5 days was $349 on Alaska Airlines (Aug 18-Aug 22).
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 56 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 July 25, 2026.
Travelers seeking maximum savings on their Sacramento to Illinois flight should consider departing on Thursday 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 July 30, 2026.
See what other customers who have flown with Southwest,Alaska Airlines, 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
8.6
Overall
8.0
Entertainment
7.5
Comfort
8.0
Food
7.0
Boarding
8.1
Reviews
1 / 20
6.0
GoodReza,Jun 2026
TPA - MDW
Crew
8.6
Overall
8.0
Entertainment
7.5
Comfort
8.0
Food
7.0
Boarding
8.1
Reviews
1 / 20
6.0
GoodReza,Jun 2026
TPA - MDW
Crew
8.6
Overall
8.0
Entertainment
7.5
Comfort
8.0
Food
7.0
Boarding
8.1
Reviews
1 / 20
6.0
GoodReza,Jun 2026
TPA - MDW
Crew
8.6
Overall
8.0
Entertainment
7.5
Comfort
8.0
Food
7.0
Boarding
8.1
Reviews
1 / 20
6.0
GoodReza,Jun 2026
TPA - MDW
Crew
8.6
Overall
8.0
Entertainment
7.5
Comfort
8.0
Food
7.0
Boarding
8.1
Reviews
1 / 20
6.0
GoodReza,Jun 2026
TPA - MDW
Crew
8.6
Overall
8.0
Entertainment
7.5
Comfort
8.0
Food
7.0
Boarding
8.1
Reviews
1 / 20
6.0
GoodReza,Jun 2026
TPA - MDW
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 July 30, 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 July 30, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$165 | Average$275 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$179 | Average$288 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$190 | Average$345 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$288 | Average$511 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$307 | Average$506 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$347 | Average$509 | FlexibilityNo cancel fee | On-time63% |