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Flagstaff

$239+ 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 2/25. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — FLG
dic. 26 — ene. 21
vie. 12/26
vie. 1/2
1 adult, Economy
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Cheap flight deals from Illinois to Flagstaff

Keep the following information in mind while searching for Illinois to Flagstaff flight deals. Data was last updated noviembre 26, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$356
(American Airlines)

One-way from

$239
(American Airlines)

Popular in

February

Cheapest in

October

Average price

$690
Provider with most accurate pricing for Chicago (CHI)-Flagstaff Pulliam flight deals.
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Provider most trusted by Cheapflights users for Chicago (CHI)-Flagstaff Pulliam flights.
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From Illinois to Flagstaff Pulliam
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One-way flight from Illinois to Flagstaff Pulliam
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Highest demand for flights based on searches. 17% potential increase in price ($127 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($22 potential savings vs. average RT price).
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Average for round-trip flights in November 2025
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Find flight deals from Illinois to Flagstaff

Cheapest flights from Illinois to Flagstaff
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 noviembre 26, 2025.

This American Airlines deal was found by Cheapflights users on 11/26. 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.
dom. 12/142:37 pmSTL - FLG
1 stop4h 55mAmerican Airlines
jue. 12/184:07 pmFLG - STL
1 stop6h 42mAmerican Airlines
Deal found 11/26$386
This American Airlines deal was found by Cheapflights users on 11/25. 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.
jue. 12/185:00 amORD - FLG
1 stop8h 40mAmerican Airlines
jue. 12/2510:19 amFLG - ORD
1 stop6h 33mAmerican Airlines
Deal found 11/25$406
This American Airlines deal was found by Cheapflights users on 11/25. 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.
mar. 12/162:37 pmSTL - FLG
1 stop4h 55mAmerican Airlines
mié. 12/174:04 pmFLG - STL
1 stop6h 52mAmerican Airlines
Deal found 11/25$436
This American Airlines deal was found by Cheapflights users on 11/26. 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.
jue. 12/257:00 amSTL - FLG
1 stop6h 00mAmerican Airlines
lun. 12/294:05 pmFLG - STL
1 stop6h 46mAmerican Airlines
Deal found 11/26$456
This American Airlines deal was found by Cheapflights users on 11/24. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 12/197:06 amORD - FLG
1 stop6h 34mAmerican Airlines
vie. 12/2610:19 amFLG - ORD
1 stop8h 47mAmerican Airlines
Deal found 11/24$466
This American Airlines deal was found by Cheapflights users on 11/24. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 12/95:14 amSTL - FLG
1 stop7h 40mAmerican Airlines
sáb. 12/134:04 pmFLG - STL
1 stop6h 52mAmerican Airlines
Deal found 11/24$466
This American Airlines deal was found by Cheapflights users on 11/25. 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.
jue. 12/255:00 amORD - FLG
1 stop5h 49mAmerican Airlines
jue. 1/110:19 amFLG - ORD
1 stop6h 33mAmerican Airlines
Deal found 11/25$576
This American Airlines deal was found by Cheapflights users on 11/25. 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.
lun. 12/295:00 amORD - FLG
1 stop5h 49mAmerican Airlines
vie. 1/24:05 pmFLG - ORD
1 stop7h 11mAmerican Airlines
Deal found 11/25$666
This American Airlines deal was found by Cheapflights users on 11/25. 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.
vie. 12/265:00 amORD - FLG
1 stop5h 49mAmerican Airlines
mié. 12/3110:19 amFLG - ORD
1 stop8h 47mAmerican Airlines
Deal found 11/25$711
This American Airlines deal was found by Cheapflights users on 11/24. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 12/286:24 amEVV - FLG
2 stops10h 11mAmerican Airlines
jue. 1/110:19 amFLG - EVV
2 stops12h 29mAmerican Airlines
Deal found 11/24$1,011

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 noviembre 26, 2025.
Use the filters below to find and compare flights from Illinois to Flagstaff that are best for you.

Fly from

Illinois

Fly to

Flagstaff

Route

Depart

Return

Price

St. LouisFlagstaff

STL - FLG

STLFLG

Lambert-St Louis

dom. 1/25

7:15 am-12:48 pm

1 stop6h 33m

Flagstaff Pulliam

mié. 1/28

1:18 pm-7:29 pm

1 stop5h 11m

$356

St. LouisFlagstaff

STL - FLG

STLFLG

Lambert-St Louis

dom. 12/14

2:37 pm-6:32 pm

1 stop4h 55m

Flagstaff Pulliam

jue. 12/18

4:07 pm-11:49 pm

1 stop6h 42m

$386

ChicagoFlagstaff

ORD - FLG

ORDFLG

Chicago O'Hare Intl

vie. 2/13

1:30 pm-8:37 pm

1 stop8h 07m

Flagstaff Pulliam

mar. 2/17

1:16 pm-8:20 pm

1 stop6h 04m

$406

ChicagoFlagstaff

ORD - FLG

ORDFLG

Chicago O'Hare Intl

jue. 12/18

5:00 am-12:40 pm

1 stop8h 40m

Flagstaff Pulliam

jue. 12/25

10:19 am-5:52 pm

1 stop6h 33m

$406

ChicagoFlagstaff

ORD - FLG

ORDFLG

Chicago O'Hare Intl

mar. 2/24

6:10 am-12:06 pm

1 stop6h 56m

Flagstaff Pulliam

sáb. 2/28

1:16 pm-9:09 pm

1 stop6h 53m

$406

ChicagoFlagstaff

ORD - FLG

ORDFLG

Chicago O'Hare Intl

vie. 2/20

5:00 am-12:46 pm

1 stop8h 46m

Flagstaff Pulliam

mar. 2/24

12:36 pm-9:17 pm

1 stop7h 41m

$406

ChicagoFlagstaff

ORD - FLG

ORDFLG

Chicago O'Hare Intl

sáb. 2/14

7:01 am-12:46 pm

1 stop6h 45m

Flagstaff Pulliam

mié. 2/18

12:36 pm-10:23 pm

1 stop8h 47m

$406

ChicagoFlagstaff

ORD - FLG

ORDFLG

Chicago O'Hare Intl

mié. 1/7

6:54 am-12:48 pm

1 stop6h 54m

Flagstaff Pulliam

mar. 1/13

1:18 pm-8:39 pm

1 stop6h 21m

$406

St. LouisFlagstaff

STL - FLG

STLFLG

Lambert-St Louis

jue. 1/15

6:00 am-12:48 pm

1 stop7h 48m

Flagstaff Pulliam

jue. 1/22

6:05 pm-11:59 pm

1 stop4h 54m

$406

St. LouisFlagstaff

STL - FLG

STLFLG

Lambert-St Louis

vie. 2/6

7:43 am-12:08 pm

1 stop5h 25m

Flagstaff Pulliam

mar. 2/10

7:24 am-1:53 pm

1 stop5h 29m

$406

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/23

Showing 1-10 of 16 results
1
2

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.
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

What is the cheapest month to book a flight from Illinois to Flagstaff?

Currently, December is the cheapest month in which you can book a flight from Illinois to Flagstaff (average of $405). Flying from Illinois to Flagstaff in February is currently the most expensive (average of $675). 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 IL to FLG?

Find hourly flight availability from Illinois to Flagstaff. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated noviembre 26, 2025.

It’s typically best to fly out from Illinois to Flagstaff in the afternoon. Doing so could potentially save you 19% on the flight price compared to flying in the evening, which is usually more expensive.

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.

  • What airport do you fly into for flights to Flagstaff from Illinois?

    Located just 4.3 mi from the city center, Flagstaff Pulliam (FLG) is the airport most travelers will use when flying to Flagstaff from Illinois.

  • How long is the flight from Illinois to Flagstaff?

    Airlines like American Airlines fly from Illinois to Flagstaff in about 6h 33m. The time it takes to get you to your destination can typically vary by up to . The distance between Illinois and Flagstaff is about 1199 mi.

  • What are the most popular routes from Illinois to Flagstaff?

    While some choose either Lambert-St Louis - Flagstaff Pulliam or Evansville Dress Regional - Flagstaff Pulliam, Chicago O'Hare Intl - Flagstaff Pulliam is the most popular route from Illinois to Flagstaff.

  • Can I find deals for flights from Illinois to Flagstaff that include hotel bookings?

    Yes. In addition to deals on Illinois to Flagstaff flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Illinois to Flagstaff?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Illinois to Flagstaff.

  • Can I find deals for business class flights from Illinois to Flagstaff?

    Yes. Cheapflights offers flight deals from Illinois to Flagstaff by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Illinois to Flagstaff?

    Currently, December is the cheapest month in which you can book a flight from Illinois to Flagstaff (average of $405). Flying from Illinois to Flagstaff in February is currently the most expensive (average of $675). 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.

See more FAQs

Traveling to a place near Flagstaff?

Book flights to Flagstaff if you plan to visit one of these locations
Williams
Winslow

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Alternative routes for Illinois to Flagstaff

See prices for flight routes from nearby airports that may be better suited for you.
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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 noviembre 26, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$405Average$638FlexibilityNo cancel feeOn-time71%

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