$385+ Cheap flights from Illinois to Flagstaff (FLG)
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 7/1. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — FLG
Jul 9 — Jul 161
Round-trip
1 adult, Economy
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Find cheap flights from Illinois to Flagstaff with Cheapflights
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Cheapest flights from Illinois to FlagstaffExplore the most affordable flight options available from Illinois to Flagstaff. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 9, 2026.
Explore the most affordable flight options available from Illinois to Flagstaff. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 9, 2026.
This American Airlines deal was found by Cheapflights users on 6/8. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/25:00 am
ORD
- FLG
1 stop6h 49m
American Airlines
Wed 9/912:37 pm
FLG
- ORD
1 stop8h 53m
American Airlines
Deal found 6/8![American Airlines logo]()
$498
This American Airlines deal was found by Cheapflights users on 6/6. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/88:38 am
STL
- FLG
1 stop5h 19m
American Airlines
Sun 7/1212:37 pm
FLG
- STL
1 stop5h 16m
American Airlines
Deal found 6/6![American Airlines logo]()
$512
This American Airlines deal was found by Cheapflights users on 6/7. 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.
Wed 7/153:22 pm
ORD
- FLG
1 stop6h 37m
American Airlines
Sun 7/1912:37 pm
FLG
- ORD
1 stop9h 02m
American Airlines
Deal found 6/7![American Airlines logo]()
$528
This American Airlines deal was found by Cheapflights users on 6/8. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/85:00 am
ORD
- FLG
1 stop6h 47m
American Airlines
Sat 7/1111:38 am
FLG
- ORD
1 stop7h 54m
American Airlines
Deal found 6/8![American Airlines logo]()
$537
This American Airlines deal was found by Cheapflights users on 6/6. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/18:01 am
STL
- FLG
1 stop5h 07m
American Airlines
Sun 8/912:35 pm
FLG
- STL
1 stop8h 06m
American Airlines
Deal found 6/6![American Airlines logo]()
$546
This American Airlines deal was found by Cheapflights users on 6/5. Clicking the “Pick Dates” 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 11/115:18 am
ORD
- FLG
1 stop7h 33m
American Airlines
Sun 11/154:04 pm
FLG
- ORD
1 stop7h 08m
American Airlines
Deal found 6/5![American Airlines logo]()
$548
This American Airlines deal was found by Cheapflights users on 6/6. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/317:07 am
STL
- FLG
1 stop6h 50m
American Airlines
Fri 8/712:35 pm
FLG
- STL
1 stop5h 08m
American Airlines
Deal found 6/6![American Airlines logo]()
$550
This American Airlines deal was found by Cheapflights users on 6/7. 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.
Sat 9/266:00 am
EVV
- FLG
1 stop7h 53m
American Airlines
Sat 10/311:43 am
FLG
- EVV
2 stops10h 15m
American Airlines
Deal found 6/7![American Airlines logo]()
$552
This American Airlines deal was found by Cheapflights users on 6/9. 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.
Thu 8/66:00 am
ORD
- FLG
1 stop7h 54m
American Airlines
Sun 8/912:35 pm
FLG
- ORD
1 stop8h 55m
American Airlines
Deal found 6/9![American Airlines logo]()
$558
This American Airlines deal was found by Cheapflights users on 6/7. 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.
Fri 9/46:00 am
ORD
- FLG
1 stop7h 54m
American Airlines
Tue 9/811:42 am
FLG
- ORD
1 stop8h 18m
American Airlines
Deal found 6/7![American Airlines logo]()
$567
This American Airlines deal was found by Cheapflights users on 6/5. Clicking the “Pick Dates” 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 6/65:00 am
ORD
- FLG
1 stop6h 55m
American Airlines
Tue 6/912:35 pm
FLG
- ORD
1 stop6h 25m
American Airlines
Deal found 6/5![American Airlines logo]()
$576
This American Airlines deal was found by Cheapflights users on 6/8. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/145:29 am
STL
- FLG
1 stop8h 26m
American Airlines
Sat 6/2010:25 am
FLG
- STL
1 stop5h 08m
American Airlines
Deal found 6/8![American Airlines logo]()
$577
Best flights from Illinois to FlagstaffDiscover carefully curated flight deals from Illinois to Flagstaff that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 9, 2026.
Discover carefully curated flight deals from Illinois to Flagstaff that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 9, 2026.
This American Airlines deal was found by Cheapflights users on 6/7. 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.
Wed 9/26:00 am
ORD
- FLG
1 stop7h 54m
American Airlines
Wed 9/95:15 pm
FLG
- ORD
1 stop5h 15m
American Airlines
Deal found 6/7![American Airlines logo]()
$498
This American Airlines deal was found by Cheapflights users on 6/5. Clicking the “Pick Dates” 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 8/116:00 am
ORD
- FLG
1 stop7h 54m
American Airlines
Wed 8/197:00 am
FLG
- ORD
1 stop7h 04m
American Airlines
Deal found 6/5![American Airlines logo]()
$498
This American Airlines deal was found by Cheapflights users on 6/6. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/88:38 am
STL
- FLG
1 stop5h 19m
American Airlines
Sun 7/1212:37 pm
FLG
- STL
1 stop5h 16m
American Airlines
Deal found 6/6![American Airlines logo]()
$512
This American Airlines deal was found by Cheapflights users on 6/5. Clicking the “Pick Dates” 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 7/308:38 am
STL
- FLG
1 stop5h 19m
American Airlines
Wed 8/512:35 pm
FLG
- STL
1 stop5h 51m
American Airlines
Deal found 6/5![American Airlines logo]()
$512
This American Airlines deal was found by Cheapflights users on 6/8. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/46:00 am
ORD
- FLG
1 stop7h 54m
American Airlines
Tue 9/812:35 pm
FLG
- ORD
1 stop8h 55m
American Airlines
Deal found 6/8![American Airlines logo]()
$528
This American Airlines deal was found by Cheapflights users on 6/6. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/18:01 am
STL
- FLG
1 stop5h 07m
American Airlines
Sun 8/912:35 pm
FLG
- STL
1 stop8h 06m
American Airlines
Deal found 6/6![American Airlines logo]()
$546
This American Airlines deal was found by Cheapflights users on 6/7. 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.
Thu 9/38:36 am
STL
- FLG
1 stop5h 18m
American Airlines
Sun 9/612:35 pm
FLG
- STL
1 stop8h 06m
American Airlines
Deal found 6/7![American Airlines logo]()
$550
This American Airlines deal was found by Cheapflights users on 6/6. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/65:00 am
ORD
- FLG
1 stop8h 11m
American Airlines
Sun 8/912:35 pm
FLG
- ORD
1 stop6h 41m
American Airlines
Deal found 6/6![American Airlines logo]()
$558
This American Airlines deal was found by Cheapflights users on 6/8. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/76:59 am
ORD
- FLG
1 stop6h 12m
American Airlines
Mon 8/1712:35 pm
FLG
- ORD
1 stop6h 41m
American Airlines
Deal found 6/8![American Airlines logo]()
$558
This American Airlines deal was found by Cheapflights users on 6/6. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/313:22 pm
ORD
- FLG
1 stop6h 37m
American Airlines
Sun 8/212:37 pm
FLG
- ORD
1 stop6h 45m
American Airlines
Deal found 6/6![American Airlines logo]()
$558
This American Airlines deal was found by Cheapflights users on 6/4. Clicking the “Pick Dates” 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.
Sun 6/148:36 am
STL
- FLG
1 stop5h 19m
American Airlines
Sat 6/2010:25 am
FLG
- STL
1 stop5h 08m
American Airlines
Deal found 6/4![American Airlines logo]()
$577
This American Airlines deal was found by Cheapflights users on 6/8. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/78:36 am
STL
- FLG
1 stop5h 18m
American Airlines
Mon 9/1412:37 pm
FLG
- STL
1 stop18h 47m
American Airlines
Deal found 6/8![American Airlines logo]()
$603
This American Airlines deal was found by Cheapflights users on 6/8. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/262:37 pm
STL
- FLG
1 stop7h 19m
American Airlines
Mon 6/296:50 am
FLG
- STL
1 stop5h 02m
American Airlines
Deal found 6/8![American Airlines logo]()
$612
This American Airlines deal was found by Cheapflights users on 6/7. 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.
Fri 9/186:00 am
EVV
- FLG
1 stop7h 53m
American Airlines
Mon 9/2110:40 am
FLG
- EVV
2 stops10h 49m
American Airlines
Deal found 6/7![American Airlines logo]()
$659
This American Airlines deal was found by Cheapflights users on 6/7. 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.
Fri 9/256:00 am
EVV
- FLG
1 stop7h 53m
American Airlines
Mon 9/2811:43 am
FLG
- EVV
2 stops9h 46m
American Airlines
Deal found 6/7![American Airlines logo]()
$689
This American Airlines deal was found by Cheapflights users on 6/7. 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.
Sat 9/266:00 am
EVV
- FLG
1 stop7h 53m
American Airlines
Sat 10/312:37 pm
FLG
- EVV
1 stop8h 52m
American Airlines
Deal found 6/7![American Airlines logo]()
$703
Last-minute flights from Illinois to FlagstaffDiscover last-minute flight deals from Illinois to Flagstaff. Data last updated June 9, 2026 and is based on user searches.
Discover last-minute flight deals from Illinois to Flagstaff. Data last updated June 9, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 6/5. Clicking the “Pick Dates” 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 6/108:36 am
STL
- FLG
1 stop5h 19m
American Airlines
Thu 6/1112:35 pm
FLG
- STL
1 stop5h 01m
American Airlines
Deal found 6/5![American Airlines logo]()
$788
This American Airlines deal was found by Cheapflights users on 6/8. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/145:29 am
STL
- FLG
1 stop8h 26m
American Airlines
Sat 6/2010:25 am
FLG
- STL
1 stop5h 08m
American Airlines
Deal found 6/8![American Airlines logo]()
$577
This American Airlines deal was found by Cheapflights users on 6/5. Clicking the “Pick Dates” 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 6/207:25 am
ORD
- FLG
1 stop5h 48m
American Airlines
Wed 6/2411:43 am
FLG
- ORD
1 stop7h 36m
American Airlines
Deal found 6/5![American Airlines logo]()
$576
This American Airlines deal was found by Cheapflights users on 6/8. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/262:37 pm
STL
- FLG
1 stop7h 19m
American Airlines
Mon 6/296:50 am
FLG
- STL
1 stop5h 02m
American Airlines
Deal found 6/8![American Airlines logo]()
$612
This American Airlines deal was found by Cheapflights users on 6/7. 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.
Thu 7/25:00 am
ORD
- FLG
1 stop8h 14m
American Airlines
Mon 7/61:50 pm
FLG
- ORD
1 stop5h 40m
American Airlines
Deal found 6/7![American Airlines logo]()
$636
This American Airlines deal was found by Cheapflights users on 6/6. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/65:00 am
ORD
- FLG
1 stop8h 08m
American Airlines
Fri 7/1011:38 am
FLG
- ORD
1 stop16h 47m
American Airlines
Deal found 6/6![American Airlines logo]()
$615
This American Airlines deal was found by Cheapflights users on 6/6. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/88:38 am
STL
- FLG
1 stop5h 19m
American Airlines
Sun 7/1212:37 pm
FLG
- STL
1 stop5h 16m
American Airlines
Deal found 6/6![American Airlines logo]()
$512
This American Airlines deal was found by Cheapflights users on 6/8. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/85:00 am
ORD
- FLG
1 stop6h 47m
American Airlines
Sat 7/1111:38 am
FLG
- ORD
1 stop7h 54m
American Airlines
Deal found 6/8![American Airlines logo]()
$537
This American Airlines deal was found by Cheapflights users on 6/7. 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.
Wed 7/153:22 pm
ORD
- FLG
1 stop6h 37m
American Airlines
Sun 7/1912:37 pm
FLG
- ORD
1 stop9h 02m
American Airlines
Deal found 6/7![American Airlines logo]()
$528
This American Airlines deal was found by Cheapflights users on 6/7. 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.
Wed 7/225:00 am
ORD
- FLG
1 stop8h 08m
American Airlines
Wed 7/2912:37 pm
FLG
- ORD
1 stop9h 02m
American Airlines
Deal found 6/7![American Airlines logo]()
$498
This American Airlines deal was found by Cheapflights users on 6/6. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/317:07 am
STL
- FLG
1 stop6h 50m
American Airlines
Fri 8/712:35 pm
FLG
- STL
1 stop5h 08m
American Airlines
Deal found 6/6![American Airlines logo]()
$550
This American Airlines deal was found by Cheapflights users on 6/6. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/313:22 pm
ORD
- FLG
1 stop6h 37m
American Airlines
Sun 8/212:37 pm
FLG
- ORD
1 stop6h 45m
American Airlines
Deal found 6/6![American Airlines logo]()
$558
One-way flights from Illinois to FlagstaffSearch for one-way flight options from Illinois to Flagstaff. Find affordable one-way fares based on user searches. Data last updated June 9, 2026.
Search for one-way flight options from Illinois to Flagstaff. Find affordable one-way fares based on user searches. Data last updated June 9, 2026.
This American Airlines deal was found by Cheapflights users on 6/7. 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.
Sat 6/205:00 am
ORD
- FLG
1 stop8h 13m
American Airlines
Deal found 6/7![American Airlines logo]()
$385
This American Airlines deal was found by Cheapflights users on 6/7. 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.
Fri 6/262:21 pm
ORD
- FLG
1 stop7h 35m
American Airlines
Deal found 6/7![American Airlines logo]()
$405
This American Airlines deal was found by Cheapflights users on 6/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/3011:43 am
ORD
- FLG
2 stops10h 13m
American Airlines
Deal found 6/5![American Airlines logo]()
$426
This American Airlines deal was found by Cheapflights users on 6/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/191:25 pm
ORD
- FLG
2 stops8h 31m
American Airlines
Deal found 6/4![American Airlines logo]()
$488
This Alaska Airlines deal was found by Cheapflights users on 6/7. 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.
Tue 8/1810:00 am
ORD
- FLG
2 stops25h 49m
Alaska Airlines
Deal found 6/7![Alaska Airlines logo]()
$673
This Kiwi.com deal was found by Cheapflights users on 6/7. 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.
Fri 6/265:30 pm
ORD
- FLG
3 stops43h 43m
Multiple Airlines
Deal found 6/7![Multiple Airlines logo]()
$709
This Kiwi.com deal was found by Cheapflights users on 6/5. Clicking the “Pick Dates” 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 6/305:30 pm
ORD
- FLG
3 stops28h 26m
Multiple Airlines
Deal found 6/5![Multiple Airlines logo]()
$802
This Kiwi.com deal was found by Cheapflights users on 6/5. Clicking the “Pick Dates” 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 6/285:30 pm
ORD
- FLG
3 stops28h 26m
Multiple Airlines
Deal found 6/5![Multiple Airlines logo]()
$1,738
Find flight deals from Illinois to Flagstaff
Keep the following information in mind while searching for Illinois to Flagstaff flight deals. Data was last updated June 9, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $498 (American Airlines) |
One-way from | $385 (American Airlines) |
Popular in | November |
Cheapest in | October |
Average price | $537 |
Cheapflights Fare Finder
Customize your flight search to find flights from Illinois to Flagstaff that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated June 9, 2026.
Use the filters below to find and compare flights from Illinois to Flagstaff that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
ChicagoFlagstaff
ORD - FLG
ORDFLG
Chicago O'Hare Intl
Wed 9/2
6:00 am-11:54 am
1 stop7h 54m
Flagstaff Pulliam
Wed 9/9
5:15 pm-12:30 am
1 stop5h 15m
$498
ChicagoFlagstaff
ORD - FLG
ORDFLG
Chicago O'Hare Intl
Tue 8/11
6:00 am-11:54 am
1 stop7h 54m
Flagstaff Pulliam
Wed 8/19
7:00 am-4:04 pm
1 stop7h 04m
$498
St. LouisFlagstaff
STL - FLG
STLFLG
Lambert-St Louis
Wed 7/8
8:38 am-11:57 am
1 stop5h 19m
Flagstaff Pulliam
Sun 7/12
12:37 pm-7:53 pm
1 stop5h 16m
$512
St. LouisFlagstaff
STL - FLG
STLFLG
Lambert-St Louis
Thu 7/30
8:38 am-11:57 am
1 stop5h 19m
Flagstaff Pulliam
Wed 8/5
12:35 pm-8:26 pm
1 stop5h 51m
$512
ChicagoFlagstaff
ORD - FLG
ORDFLG
Chicago O'Hare Intl
Fri 9/4
6:00 am-11:54 am
1 stop7h 54m
Flagstaff Pulliam
Tue 9/8
12:35 pm-11:30 pm
1 stop8h 55m
$528
St. LouisFlagstaff
STL - FLG
STLFLG
Lambert-St Louis
Sat 8/1
8:01 am-11:08 am
1 stop5h 07m
Flagstaff Pulliam
Sun 8/9
12:35 pm-10:41 pm
1 stop8h 06m
$546
St. LouisFlagstaff
STL - FLG
STLFLG
Lambert-St Louis
Thu 9/3
8:36 am-11:54 am
1 stop5h 18m
Flagstaff Pulliam
Sun 9/6
12:35 pm-10:41 pm
1 stop8h 06m
$550
ChicagoFlagstaff
ORD - FLG
ORDFLG
Chicago O'Hare Intl
Thu 8/6
5:00 am-11:11 am
1 stop8h 11m
Flagstaff Pulliam
Sun 8/9
12:35 pm-9:16 pm
1 stop6h 41m
$558
ChicagoFlagstaff
ORD - FLG
ORDFLG
Chicago O'Hare Intl
Fri 8/7
6:59 am-11:11 am
1 stop6h 12m
Flagstaff Pulliam
Mon 8/17
12:35 pm-9:16 pm
1 stop6h 41m
$558
ChicagoFlagstaff
ORD - FLG
ORDFLG
Chicago O'Hare Intl
Fri 7/31
3:22 pm-7:59 pm
1 stop6h 37m
Flagstaff Pulliam
Sun 8/2
12:37 pm-9:22 pm
1 stop6h 45m
$558
Showing 1-10 of 22 resultsSorted by cheapest first
Best time to book a flight from Illinois to Flagstaff
Have a flexible travel schedule? Discover the best time to fly to Flagstaff from Illinois with our price prediction graph.
ORD-FLG
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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 Flagstaff
USIL-FLG
ORD-FLG
STL-FLG
EVV-FLG
What is the cheapest month to book a flight from Illinois to Flagstaff?
Currently, September is the cheapest month in which you can book a flight from Illinois to Flagstaff (average of $405). Flying from Illinois to Flagstaff in November is currently the most expensive (average of $690). 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.
Related info for your journey
Find useful and relevant information for your journey from Illinois to Flagstaff. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Flagstaff?
Book flights to Flagstaff if you plan to visit one of these locationsWinslow
Williams
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Alternative routes for Illinois to Flagstaff
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Complete your trip
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Illinois and Flagstaff flights
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Illinois to Flagstaff flights
Consider these flights traveling from Illinois to Flagstaff.
Top airline flying from Illinois to Flagstaff
Discover the top airline that operate flights from Illinois to Flagstaff. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated June 9, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$405 | Average$630 | FlexibilityNo cancel fee | On-time71% |