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Flagstaff

$210+ 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 11/25. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — FLG
Nov 12 — Nov 191
Wed 11/12
Wed 11/19
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 October 13, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$356
(American Airlines)

One-way from

$210
(American Airlines)

Popular in

October

Cheapest in

July

Average price

$922
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. 7% potential increase in price ($55 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($29 potential savings vs. average RT price).
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Average for round-trip flights in October 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 October 13, 2025.

This American Airlines deal was found by Cheapflights users on 10/13. 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 11/105:00 amORD - FLG
1 stop5h 25mAmerican Airlines
Fri 11/1412:50 pmFLG - ORD
1 stop7h 14mAmerican Airlines
Deal found 10/13$356
This American Airlines deal was found by Cheapflights users on 10/12. 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 11/115:18 amORD - FLG
1 stop8h 02mAmerican Airlines
Tue 11/181:37 pmFLG - ORD
1 stop7h 43mAmerican Airlines
Deal found 10/12$357
This American Airlines deal was found by Cheapflights users on 10/12. 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 10/273:22 pmORD - FLG
1 stop7h 55mAmerican Airlines
Tue 11/411:18 amFLG - ORD
1 stop5h 35mAmerican Airlines
Deal found 10/12$386
This American Airlines deal was found by Cheapflights users on 10/12. 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 10/2812:03 pmORD - FLG
2 stops7h 54mAmerican Airlines
Tue 11/411:18 amFLG - ORD
2 stops11h 19mAmerican Airlines
Deal found 10/12$401
This American Airlines deal was found by Cheapflights users on 10/13. 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 12/51:35 pmORD - FLG
1 stop5h 57mAmerican Airlines
Wed 12/1012:24 pmFLG - ORD
1 stop7h 37mAmerican Airlines
Deal found 10/13$406
This American Airlines deal was found by Cheapflights users on 10/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/155:14 amSTL - FLG
1 stop7h 40mAmerican Airlines
Mon 12/224:05 pmFLG - STL
1 stop6h 44mAmerican Airlines
Deal found 10/11$406
This American Airlines deal was found by Cheapflights users on 10/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/185:00 amORD - FLG
1 stop9h 00mAmerican Airlines
Tue 11/184:04 pmFLG - ORD
1 stop7h 08mAmerican Airlines
Deal found 10/11$430
This American Airlines deal was found by Cheapflights users on 10/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/167:00 amORD - FLG
1 stop6h 30mAmerican Airlines
Fri 11/214:04 pmFLG - ORD
1 stop7h 08mAmerican Airlines
Deal found 10/11$436
This American Airlines deal was found by Cheapflights users on 10/13. 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 10/287:00 amSTL - FLG
1 stop7h 50mAmerican Airlines
Sat 11/110:17 amFLG - STL
2 stops9h 51mAmerican Airlines
Deal found 10/13$476
This American Airlines deal was found by Cheapflights users on 10/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/107:00 amSTL - FLG
1 stop6h 20mAmerican Airlines
Mon 11/174:04 pmFLG - STL
1 stop20h 36mAmerican Airlines
Deal found 10/11$494
This American Airlines deal was found by Cheapflights users on 10/12. 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 10/196:21 pmSTL - FLG
1 stop6h 33mAmerican Airlines
Fri 10/2410:17 amFLG - STL
1 stop5h 21mAmerican Airlines
Deal found 10/12$516
This American Airlines deal was found by Cheapflights users on 10/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/106:00 amEVV - FLG
1 stop6h 54mAmerican Airlines
Sat 12/131:37 pmFLG - EVV
1 stop6h 38mAmerican Airlines
Deal found 10/11$536

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 October 13, 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

ChicagoFlagstaff

ORD - FLG

ORDFLG

Chicago O'Hare Intl

Mon 11/10

5:00 am-9:25 am

1 stop5h 25m

Flagstaff Pulliam

Fri 11/14

12:50 pm-9:04 pm

1 stop7h 14m

$356

ChicagoFlagstaff

ORD - FLG

ORDFLG

Chicago O'Hare Intl

Tue 11/11

8:30 am-3:34 pm

1 stop8h 04m

Flagstaff Pulliam

Tue 11/18

12:50 pm-9:04 pm

1 stop7h 14m

$356

St. LouisFlagstaff

STL - FLG

STLFLG

Lambert-St Louis

Mon 12/15

5:14 am-11:54 am

1 stop7h 40m

Flagstaff Pulliam

Mon 12/22

4:05 pm-11:49 pm

1 stop6h 44m

$406

ChicagoFlagstaff

ORD - FLG

ORDFLG

Chicago O'Hare Intl

Sat 1/10

5:05 am-12:08 pm

2 stops8h 03m

Flagstaff Pulliam

Fri 1/16

1:30 pm-8:39 pm

1 stop6h 09m

$416

ChicagoFlagstaff

ORD - FLG

ORDFLG

Chicago O'Hare Intl

Fri 12/12

8:11 am-3:34 pm

2 stops8h 23m

Flagstaff Pulliam

Tue 12/16

11:18 am-10:18 pm

2 stops10h 00m

$421

ChicagoFlagstaff

ORD - FLG

ORDFLG

Chicago O'Hare Intl

Tue 11/18

7:00 am-1:00 pm

1 stop7h 00m

Flagstaff Pulliam

Thu 11/20

10:36 am-8:01 pm

1 stop8h 25m

$436

ChicagoFlagstaff

ORD - FLG

ORDFLG

Chicago O'Hare Intl

Sun 1/11

7:05 am-12:08 pm

1 stop6h 03m

Flagstaff Pulliam

Fri 1/16

12:38 pm-9:07 pm

1 stop7h 29m

$436

ChicagoFlagstaff

ORD - FLG

ORDFLG

Chicago O'Hare Intl

Tue 11/18

5:18 am-12:20 pm

1 stop8h 02m

Flagstaff Pulliam

Fri 11/21

4:04 pm-12:12 am

1 stop7h 08m

$436

ChicagoFlagstaff

ORD - FLG

ORDFLG

Chicago O'Hare Intl

Sun 11/16

7:00 am-12:30 pm

1 stop6h 30m

Flagstaff Pulliam

Tue 11/18

12:50 pm-9:04 pm

1 stop7h 14m

$436

ChicagoFlagstaff

ORD - FLG

ORDFLG

Chicago O'Hare Intl

Sun 1/11

6:54 am-12:48 pm

1 stop6h 54m

Flagstaff Pulliam

Thu 1/15

12:38 pm-8:01 pm

1 stop6h 23m

$436

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/11

Showing 1-10 of 23 results
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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, August is the cheapest month in which you can book a flight from Illinois to Flagstaff (average of $438). 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 October 13, 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 5h 25m. The time it takes to get you to your destination can typically vary by up to . The distance between Illinois and Flagstaff is about 1362 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, August is the cheapest month in which you can book a flight from Illinois to Flagstaff (average of $438). 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 October 13, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$465Average$645FlexibilityNo cancel feeOn-time71%

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