Flagstaff

$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
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Illinois to Flagstaff with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap 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 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$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$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$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$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$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$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$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$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$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$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$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$577

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
Provider with most accurate pricing for Chicago (CHI)-Flagstaff Pulliam flight deals.
Provider most trusted by Cheapflights users for Chicago (CHI)-Flagstaff Pulliam flights.
From Illinois to Flagstaff Pulliam
One-way flight from Illinois to Flagstaff Pulliam
Highest demand for flights based on searches. 6% potential increase in price ($38 potential increase over avg. RT price).
Cheapest flight prices on average. 2% potential price decrease ($12 potential savings vs. average RT price).
Average for round-trip flights in June 2026

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

Price

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

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/9

Showing 1-10 of 22 resultsSorted by cheapest first
1
2
3

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, 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.
  • 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 7h 54m. 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?

  • 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, 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.

See more FAQs

Traveling to a place near Flagstaff?

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

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.

Alternative routes for Illinois to Flagstaff

See prices for flight routes from nearby airports that may be better suited for you.

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.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$405Average$630FlexibilityNo cancel feeOn-time71%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.