$27+ Cheap flights from Illinois to Wyoming
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 5/26. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — JAC
mai 29 — iun 51
Round-trip
1 adult, Economy
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Cheapest flights from Illinois to WyomingExplore the most affordable flight options available from Illinois to Wyoming. Find the lowest fares from popular airlines and budget airlines, with prices last updated on aprilie 29, 2026.
Explore the most affordable flight options available from Illinois to Wyoming. Find the lowest fares from popular airlines and budget airlines, with prices last updated on aprilie 29, 2026.
This Frontier deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Lu 6/18:08 pm
STL
- DEN
Nonstop2h 33m
Frontier
Mi 6/104:12 pm
DEN
- STL
Nonstop2h 11m
Frontier
Deal found 4/28![Frontier logo]()
$102
This Kiwi.com deal was found by Cheapflights users on 4/29. 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.
Mi 5/206:51 pm
STL
- DEN
1 stop9h 34m
Frontier
Mi 5/274:15 pm
DEN
- STL
Nonstop2h 08m
Frontier
Deal found 4/29![Frontier logo]()
$106
This Super.com deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sâ 5/238:08 pm
STL
- DEN
Nonstop2h 33m
Frontier
Mi 5/274:15 pm
DEN
- STL
Nonstop2h 08m
Frontier
Deal found 4/28![Frontier logo]()
$107
This Frontier deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Lu 6/228:08 pm
STL
- DEN
Nonstop2h 36m
Frontier
Sâ 6/274:12 pm
DEN
- STL
Nonstop2h 11m
Frontier
Deal found 4/28![Frontier logo]()
$108
This Kiwi.com deal was found by Cheapflights users on 4/29. 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.
Ma 5/268:08 pm
STL
- DEN
Nonstop2h 33m
Frontier
Jo 5/284:15 pm
DEN
- STL
Nonstop2h 08m
Frontier
Deal found 4/29![Frontier logo]()
$110
This Kiwi.com deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Ma 5/268:08 pm
STL
- DEN
Nonstop2h 33m
Frontier
Ma 6/211:54 pm
DEN
- STL
1 stop8h 01m
Frontier
Deal found 4/28![Frontier logo]()
$113
This Kiwi.com deal was found by Cheapflights users on 4/29. 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.
Lu 5/258:08 pm
STL
- DEN
Nonstop2h 33m
Frontier
Mi 5/274:15 pm
DEN
- STL
Nonstop2h 08m
Frontier
Deal found 4/29![Frontier logo]()
$116
This Cheapflightsfares deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mi 5/278:08 pm
STL
- DEN
Nonstop2h 33m
Frontier
Mi 6/36:00 am
DEN
- STL
1 stop16h 57m
Frontier
Deal found 4/28![Frontier logo]()
$117
This Kiwi.com deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mi 6/107:04 pm
STL
- DEN
1 stop28h 57m
Frontier
Mi 6/174:12 pm
DEN
- STL
Nonstop2h 11m
Frontier
Deal found 4/28![Frontier logo]()
$119
This Kiwi.com deal was found by Cheapflights users on 4/29. 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.
Du 5/248:08 pm
STL
- DEN
Nonstop2h 33m
Frontier
Mi 5/274:15 pm
DEN
- STL
Nonstop2h 08m
Frontier
Deal found 4/29![Frontier logo]()
$120
This Cheapflightsfares deal was found by Cheapflights users on 4/29. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mi 6/248:08 pm
STL
- DEN
Nonstop2h 36m
Frontier
Ma 6/3011:46 pm
DEN
- STL
1 stop8h 06m
Frontier
Deal found 4/29![Frontier logo]()
$122
This Frontier deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Ma 6/238:08 pm
STL
- DEN
Nonstop2h 36m
Frontier
Ma 6/3012:18 pm
DEN
- STL
1 stop5h 00m
Frontier
Deal found 4/28![Frontier logo]()
$123
Best flights from Illinois to WyomingDiscover carefully curated flight deals from Illinois to Wyoming that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated aprilie 29, 2026.
Discover carefully curated flight deals from Illinois to Wyoming that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated aprilie 29, 2026.
This Cheapflightsfares deal was found by Cheapflights users on 4/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Du 6/74:19 pm
STL
- DEN
1 stop17h 05m
Frontier
Sâ 6/134:12 pm
DEN
- STL
Nonstop2h 11m
Frontier
Deal found 4/24![Frontier logo]()
$183
This Southwest deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mi 6/105:30 am
MDW
- DEN
Nonstop2h 35m
Southwest
Ma 6/238:05 am
DEN
- MDW
1 stop4h 45m
Southwest
Deal found 4/28![Southwest logo]()
$211
This United Airlines deal was found by Cheapflights users on 4/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sâ 5/232:33 pm
ORD
- DEN
Nonstop2h 57m
United Airlines
Lu 5/256:00 am
DEN
- ORD
Nonstop2h 38m
United Airlines
Deal found 4/24![United Airlines logo]()
$221
This Delta deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mi 5/209:22 am
MDW
- DEN
1 stop5h 37m
Delta
Jo 5/216:00 am
DEN
- MDW
1 stop6h 19m
Delta
Deal found 4/27![Delta logo]()
$231
This Southwest deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mi 6/38:50 pm
MDW
- DEN
Nonstop2h 45m
Southwest
Mi 6/108:05 am
DEN
- MDW
1 stop4h 45m
Southwest
Deal found 4/28![Southwest logo]()
$221
This Delta deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Vi 6/191:21 pm
MDW
- DEN
1 stop5h 18m
Delta
Mi 6/246:05 am
DEN
- MDW
1 stop5h 36m
Delta
Deal found 4/27![Delta logo]()
$253
This United Airlines deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Ma 7/79:50 pm
ORD
- DEN
Nonstop2h 59m
United Airlines
Sâ 7/114:20 pm
DEN
- ORD
Nonstop2h 45m
United Airlines
Deal found 4/28![United Airlines logo]()
$255
This Southwest deal was found by Cheapflights users on 4/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Lu 6/226:50 am
MDW
- DEN
Nonstop2h 30m
Southwest
Ma 6/236:15 am
DEN
- MDW
Nonstop2h 25m
Southwest
Deal found 4/24![Southwest logo]()
$233
This United Airlines deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Vi 10/236:00 am
ORD
- DEN
Nonstop2h 42m
United Airlines
Lu 10/268:17 am
DEN
- ORD
Nonstop2h 25m
United Airlines
Deal found 4/27![United Airlines logo]()
$265
This Delta deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Lu 7/65:57 pm
ORD
- DEN
1 stop6h 39m
Delta
Mi 7/87:15 am
DEN
- ORD
1 stop5h 59m
Delta
Deal found 4/28![Delta logo]()
$275
This Southwest deal was found by Cheapflights users on 4/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Lu 6/295:15 am
MDW
- DEN
Nonstop2h 35m
Southwest
Mi 7/86:15 am
DEN
- MDW
Nonstop2h 25m
Southwest
Deal found 4/24![Southwest logo]()
$255
This United Airlines deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Lu 5/189:54 pm
ORD
- DEN
Nonstop2h 56m
United Airlines
Vi 5/229:05 pm
DEN
- ORD
Nonstop2h 39m
United Airlines
Deal found 4/27![United Airlines logo]()
$273
This Delta deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Jo 5/217:01 pm
STL
- DEN
1 stop6h 32m
Delta
Lu 5/2512:56 am
DEN
- STL
1 stop6h 22m
Delta
Deal found 4/28![Delta logo]()
$275
This Southwest deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Lu 6/16:00 am
MDW
- DEN
Nonstop2h 40m
Southwest
Sâ 6/1312:05 pm
DEN
- MDW
1 stop3h 55m
Southwest
Deal found 4/27![Southwest logo]()
$259
This United Airlines deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Vi 10/235:42 pm
MLI
- DEN
1 stop6h 36m
United Airlines
Du 10/256:00 pm
DEN
- MLI
Nonstop2h 03m
United Airlines
Deal found 4/28![United Airlines logo]()
$279
This Delta deal was found by Cheapflights users on 4/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Du 5/318:05 pm
ORD
- DEN
1 stop4h 36m
Delta
Lu 6/1512:11 pm
DEN
- ORD
1 stop6h 20m
Delta
Deal found 4/25![Delta logo]()
$285
This Southwest deal was found by Cheapflights users on 4/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Vi 6/55:05 am
MDW
- DEN
1 stop5h 15m
Southwest
Lu 6/88:50 pm
DEN
- MDW
Nonstop2h 20m
Southwest
Deal found 4/26![Southwest logo]()
$263
This Delta deal was found by Cheapflights users on 4/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sâ 9/125:00 pm
MLI
- DEN
1 stop7h 45m
Delta
Vi 9/1812:59 am
DEN
- MLI
1 stop8h 27m
Delta
Deal found 4/26![Delta logo]()
$289
This United Airlines deal was found by Cheapflights users on 4/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Jo 9/108:50 am
MLI
- DEN
Nonstop2h 40m
United Airlines
Ma 9/156:00 pm
DEN
- MLI
Nonstop2h 03m
United Airlines
Deal found 4/24![United Airlines logo]()
$289
This Southwest deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sâ 6/135:25 am
MDW
- DEN
Nonstop2h 35m
Southwest
Lu 6/158:50 pm
DEN
- MDW
Nonstop2h 20m
Southwest
Deal found 4/27![Southwest logo]()
$265
This Delta deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Vi 10/235:00 pm
MLI
- DEN
1 stop7h 49m
Delta
Sâ 10/2412:59 am
DEN
- MLI
1 stop8h 27m
Delta
Deal found 4/28![Delta logo]()
$289
This Southwest deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Vi 7/35:15 am
MDW
- DEN
Nonstop2h 35m
Southwest
Sâ 7/115:15 am
DEN
- MDW
Nonstop2h 20m
Southwest
Deal found 4/28![Southwest logo]()
$265
This United Airlines deal was found by Cheapflights users on 4/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Jo 5/215:00 am
ORD
- DEN
Nonstop2h 42m
United Airlines
Du 5/244:40 pm
DEN
- ORD
Nonstop2h 44m
United Airlines
Deal found 4/25![United Airlines logo]()
$303
This Delta deal was found by Cheapflights users on 4/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sâ 10/35:00 pm
MLI
- DEN
1 stop7h 45m
Delta
Vi 10/912:59 am
DEN
- MLI
1 stop8h 27m
Delta
Deal found 4/26![Delta logo]()
$289
This United Airlines deal was found by Cheapflights users on 4/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sâ 5/301:38 pm
STL
- DEN
Nonstop2h 22m
United Airlines
Lu 6/15:34 pm
DEN
- STL
Nonstop2h 09m
United Airlines
Deal found 4/26![United Airlines logo]()
$309
This Southwest deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Jo 6/115:15 am
MDW
- DEN
Nonstop2h 35m
Southwest
Sâ 6/1312:05 pm
DEN
- MDW
1 stop3h 55m
Southwest
Deal found 4/28![Southwest logo]()
$281
This Delta deal was found by Cheapflights users on 4/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sâ 5/235:17 pm
MLI
- DEN
1 stop8h 16m
Delta
Du 5/3112:56 am
DEN
- MLI
1 stop8h 24m
Delta
Deal found 4/25![Delta logo]()
$289
This Southwest deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Ma 7/711:25 am
MDW
- DEN
1 stop4h 35m
Southwest
Sâ 7/116:20 am
DEN
- MDW
1 stop4h 30m
Southwest
Deal found 4/28![Southwest logo]()
$285
This United Airlines deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Vi 7/39:05 am
MLI
- DEN
Nonstop2h 30m
United Airlines
Du 7/56:00 am
DEN
- MLI
1 stop5h 39m
United Airlines
Deal found 4/28![United Airlines logo]()
$334
This Delta deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Vi 5/155:17 pm
MLI
- DEN
1 stop8h 16m
Delta
Mi 5/201:50 pm
DEN
- MLI
1 stop7h 31m
Delta
Deal found 4/28![Delta logo]()
$309
Last-minute flights from Illinois to WyomingDiscover last-minute flight deals from Illinois to Wyoming. Data last updated aprilie 29, 2026 and is based on user searches.
Discover last-minute flight deals from Illinois to Wyoming. Data last updated aprilie 29, 2026 and is based on user searches.
This Super.com deal was found by Cheapflights users on 4/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sâ 5/28:17 pm
STL
- DEN
Nonstop2h 33m
Frontier
Sâ 5/94:15 pm
DEN
- STL
Nonstop2h 08m
Frontier
Deal found 4/25![Frontier logo]()
$127
This Cheapflightsfares deal was found by Cheapflights users on 4/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mi 5/69:37 pm
ORD
- DEN
Nonstop3h 07m
Frontier
Ma 5/124:54 pm
DEN
- ORD
Nonstop2h 38m
Frontier
Deal found 4/26![Frontier logo]()
$164
This Frontier deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Vi 5/88:08 pm
STL
- DEN
Nonstop2h 33m
Frontier
Sâ 5/164:15 pm
DEN
- STL
Nonstop2h 08m
Frontier
Deal found 4/28![Frontier logo]()
$128
This Kiwi.com deal was found by Cheapflights users on 4/29. 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.
Mi 5/206:51 pm
STL
- DEN
1 stop9h 34m
Frontier
Mi 5/274:15 pm
DEN
- STL
Nonstop2h 08m
Frontier
Deal found 4/29![Frontier logo]()
$106
This Super.com deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sâ 5/238:08 pm
STL
- DEN
Nonstop2h 33m
Frontier
Mi 5/274:15 pm
DEN
- STL
Nonstop2h 08m
Frontier
Deal found 4/28![Frontier logo]()
$107
This Frontier deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sâ 5/236:30 pm
STL
- DEN
1 stop6h 39m
Frontier
Sâ 5/304:15 pm
DEN
- STL
Nonstop2h 08m
Frontier
Deal found 4/27![Frontier logo]()
$124
This Kiwi.com deal was found by Cheapflights users on 4/29. 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.
Du 5/248:08 pm
STL
- DEN
Nonstop2h 33m
Frontier
Mi 5/274:15 pm
DEN
- STL
Nonstop2h 08m
Frontier
Deal found 4/29![Frontier logo]()
$120
This Kiwi.com deal was found by Cheapflights users on 4/29. 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.
Lu 5/258:08 pm
STL
- DEN
Nonstop2h 33m
Frontier
Mi 5/274:15 pm
DEN
- STL
Nonstop2h 08m
Frontier
Deal found 4/29![Frontier logo]()
$116
This Kiwi.com deal was found by Cheapflights users on 4/29. 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.
Ma 5/268:08 pm
STL
- DEN
Nonstop2h 33m
Frontier
Jo 5/284:15 pm
DEN
- STL
Nonstop2h 08m
Frontier
Deal found 4/29![Frontier logo]()
$110
This Kiwi.com deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Ma 5/268:08 pm
STL
- DEN
Nonstop2h 33m
Frontier
Ma 6/211:54 pm
DEN
- STL
1 stop8h 01m
Frontier
Deal found 4/28![Frontier logo]()
$113
This Kiwi.com deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Ma 5/268:08 pm
STL
- SLC
1 stop12h 30m
Frontier
Ma 6/28:23 am
SLC
- STL
1 stop10h 00m
Frontier
Deal found 4/27![Frontier logo]()
$159
This Cheapflightsfares deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mi 5/278:08 pm
STL
- DEN
Nonstop2h 33m
Frontier
Mi 6/36:00 am
DEN
- STL
1 stop16h 57m
Frontier
Deal found 4/28![Frontier logo]()
$117
One-way flights from Illinois to WyomingSearch for one-way flight options from Illinois to Wyoming. Find affordable one-way fares based on user searches. Data last updated aprilie 29, 2026.
Search for one-way flight options from Illinois to Wyoming. Find affordable one-way fares based on user searches. Data last updated aprilie 29, 2026.
This Kiwi.com deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Ma 5/268:08 pm
STL
- DEN
Nonstop2h 33m
Frontier
Deal found 4/28![Frontier logo]()
$27
This Cheapflightsfares deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Ma 6/238:08 pm
STL
- DEN
Nonstop2h 36m
Frontier
Deal found 4/28![Frontier logo]()
$28
This Frontier deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Lu 6/228:08 pm
STL
- DEN
Nonstop2h 36m
Frontier
Deal found 4/28![Frontier logo]()
$54
This Cheapflightsfares deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Du 8/3010:07 am
PIA
- DEN
Nonstop2h 19m
Allegiant Air
Deal found 4/27![Allegiant Air logo]()
$58
This Kiwi.com deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Ma 5/268:08 pm
STL
- SLC
1 stop12h 30m
Frontier
Deal found 4/27![Frontier logo]()
$65
This eDestinos deal was found by Cheapflights users on 4/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Vi 5/154:19 pm
STL
- DEN
1 stop7h 52m
Frontier
Deal found 4/24![Frontier logo]()
$65
This Super.com deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mi 5/206:51 pm
STL
- DEN
1 stop9h 34m
Frontier
Deal found 4/28![Frontier logo]()
$70
This Kiwi.com deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Jo 5/288:08 pm
STL
- DEN
Nonstop2h 33m
Frontier
Deal found 4/28![Frontier logo]()
$73
This Super.com deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Lu 5/184:19 pm
STL
- DEN
1 stop17h 05m
Frontier
Deal found 4/27![Frontier logo]()
$75
This Super.com deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sâ 6/68:08 pm
STL
- DEN
Nonstop2h 33m
Frontier
Deal found 4/27![Frontier logo]()
$79
This Frontier deal was found by Cheapflights users on 4/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sâ 5/238:08 pm
STL
- DEN
Nonstop2h 33m
Frontier
Deal found 4/26![Frontier logo]()
$80
This Super.com deal was found by Cheapflights users on 4/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sâ 5/236:30 pm
STL
- SLC
1 stop16h 00m
Frontier
Deal found 4/24![Frontier logo]()
$85
Find flight deals from Illinois to Wyoming
Keep the following information in mind while searching for Illinois to Wyoming flight deals. Data was last updated aprilie 29, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $102 (Frontier) |
One-way from | $27 (Kiwi.com) |
Popular in | November |
Cheapest in | April |
Average price | $318 |
Good round-trip deal | $419 or less |
Good one-way deal | $240 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Illinois to Wyoming 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 aprilie 29, 2026.
Use the filters below to find and compare flights from Illinois to Wyoming that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
St. LouisDenver
STL - DEN
STLDEN
Lambert-St Louis
Du 6/7
4:19 pm-8:24 am
1 stop17h 05m
Denver Intl
Sâ 6/13
4:12 pm-7:23 pm
Nonstop2h 11m
$183
ChicagoDenver
MDW - DEN
MDWDEN
Chicago Midway
Mi 6/10
5:30 am-7:05 am
Nonstop2h 35m
Denver Intl
Ma 6/23
8:05 am-1:50 pm
1 stop4h 45m
$211
ChicagoDenver
ORD - DEN
ORDDEN
Chicago O'Hare Intl
Sâ 5/23
2:33 pm-4:30 pm
Nonstop2h 57m
Denver Intl
Lu 5/25
6:00 am-9:38 am
Nonstop2h 38m
$221
ChicagoDenver
MDW - DEN
MDWDEN
Chicago Midway
Mi 6/3
8:50 pm-10:35 pm
Nonstop2h 45m
Denver Intl
Mi 6/10
8:05 am-1:50 pm
1 stop4h 45m
$221
ChicagoDenver
MDW - DEN
MDWDEN
Chicago Midway
Mi 5/20
9:22 am-1:59 pm
1 stop5h 37m
Denver Intl
Jo 5/21
6:00 am-1:19 pm
1 stop6h 19m
$231
ChicagoDenver
MDW - DEN
MDWDEN
Chicago Midway
Lu 6/22
6:50 am-8:20 am
Nonstop2h 30m
Denver Intl
Ma 6/23
6:15 am-9:40 am
Nonstop2h 25m
$233
ChicagoDenver
MDW - DEN
MDWDEN
Chicago Midway
Vi 6/19
1:21 pm-5:39 pm
1 stop5h 18m
Denver Intl
Mi 6/24
6:05 am-12:41 pm
1 stop5h 36m
$253
ChicagoDenver
ORD - DEN
ORDDEN
Chicago O'Hare Intl
Ma 7/7
9:50 pm-11:49 pm
Nonstop2h 59m
Denver Intl
Sâ 7/11
4:20 pm-8:05 pm
Nonstop2h 45m
$255
ChicagoDenver
MDW - DEN
MDWDEN
Chicago Midway
Lu 6/29
5:15 am-6:50 am
Nonstop2h 35m
Denver Intl
Mi 7/8
6:15 am-9:40 am
Nonstop2h 25m
$255
ChicagoDenver
MDW - DEN
MDWDEN
Chicago Midway
Lu 6/1
6:00 am-7:40 am
Nonstop2h 40m
Denver Intl
Sâ 6/13
12:05 pm-5:00 pm
1 stop3h 55m
$259
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Illinois to Wyoming
Have a flexible travel schedule? Discover the best time to fly to Wyoming from Illinois with our price prediction graph.
STL-DEN
PIA-DEN
MDW-DEN
ORD-DEN
ORD-SLC
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 Illinois to Wyoming
USIL-USWY
STL-DEN
PIA-DEN
MDW-DEN
ORD-DEN
How far ahead should I book a flight from Illinois to Wyoming?
Booking 18 days in advance of your planned departure date is, on average, the best time to get cheap flights from Illinois to Wyoming. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
What is the cheapest month to book a flight from Illinois to Wyoming?
Currently, September is the cheapest month in which you can book a flight from Illinois to Wyoming (average of $191). Flying from Illinois to Wyoming in November is currently the most expensive (average of $346). 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.
How much does it cost to fly round-trip from Illinois to Wyoming?
Reviews of airlines servicing Wyoming
Get insights into the airlines that provide service to Wyoming. 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 Wyoming. Reviews last updated aprilie 29, 2026.
Read reviews from past customers who have flown Delta,United Airlines, andAmerican Airlines from Illinois to Wyoming. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
7.8
Crew
8.5
Food
7.2
Boarding
8.1
Comfort
7.9
Overall
7.9
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Entertainment
7.8
Crew
8.5
Food
7.2
Boarding
8.1
Comfort
7.9
Overall
7.9
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Entertainment
7.8
Crew
8.5
Food
7.2
Boarding
8.1
Comfort
7.9
Overall
7.9
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Entertainment
7.8
Crew
8.5
Food
7.2
Boarding
8.1
Comfort
7.9
Overall
7.9
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Related info for your journey
Find useful and relevant information for your journey from Illinois to Wyoming. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
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Alternative routes for Illinois to Wyoming
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Wyoming by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Illinois to Wyoming by cabin class
Find flights from Illinois to Wyoming, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Illinois and Wyoming flights
Browse other Illinois and Wyoming flight options. Last updated on aprilie 29, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Find a return flight route from Wyoming
Find the right flight back to Illinois after your stay in Wyoming
Illinois to Wyoming flights
Consider these flights traveling from Illinois to Wyoming.
Top 3 airlines flying from Illinois to Wyoming
Discover the top 3 airlines that operate flights from Illinois to Wyoming. 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 aprilie 29, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$263 | Average$477 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$265 | Average$358 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$289 | Average$500 | FlexibilityNo cancel fee | On-time71% |