HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Flagstaff

$260+ 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 2/20. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — FLG
Feb 11 — Feb 181
Wed 2/11
Wed 2/18
1 adult, Economy
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

Keep the following information in mind while searching for Illinois to Flagstaff flight deals. Data was last updated January 12, 2026.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$356
(American Airlines)

One-way from

$260
(American Airlines)

Popular in

February

Cheapest in

October
Provider with most accurate pricing for Chicago (CHI)-Flagstaff Pulliam flight deals.
Search Deals
Provider most trusted by Cheapflights users for Chicago (CHI)-Flagstaff Pulliam flights.
Search Deals
From Illinois to Flagstaff Pulliam
Search Deals
One-way flight from Illinois to Flagstaff Pulliam
Search Deals
Highest demand for flights based on searches. 19% potential increase in price ($147 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($27 potential savings vs. average RT price).
Search Deals

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 January 12, 2026.

This American Airlines deal was found by Cheapflights users on 1/12. 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 2/235:25 pm
ORD
-
FLG
1 stop7h 34m
American Airlines
Wed 2/251:21 pm
FLG
-
ORD
1 stop5h 44m
American Airlines
Deal found 1/12$356
This American Airlines deal was found by Cheapflights users on 1/11. 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 3/317:00 am
STL
-
FLG
1 stop6h 51m
American Airlines
Tue 4/71:30 pm
FLG
-
STL
1 stop7h 34m
American Airlines
Deal found 1/11$356
This American Airlines deal was found by Cheapflights users on 1/12. 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 3/312:58 pm
ORD
-
FLG
2 stops10h 09m
American Airlines
Tue 4/712:21 pm
FLG
-
ORD
1 stop8h 13m
American Airlines
Deal found 1/12$366
This American Airlines deal was found by Cheapflights users on 1/12. 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 2/237:05 am
ORD
-
FLG
1 stop6h 46m
American Airlines
Thu 2/261:21 pm
FLG
-
ORD
1 stop5h 44m
American Airlines
Deal found 1/12$376
This American Airlines deal was found by Cheapflights users on 1/12. 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 2/241:15 pm
ORD
-
FLG
2 stops8h 41m
American Airlines
Fri 2/271:21 pm
FLG
-
ORD
1 stop6h 44m
American Airlines
Deal found 1/12$386
This American Airlines deal was found by Cheapflights users on 1/11. 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 9/25:00 am
ORD
-
FLG
1 stop6h 57m
American Airlines
Wed 9/98:37 am
FLG
-
ORD
1 stop7h 37m
American Airlines
Deal found 1/11$406
This American Airlines deal was found by Cheapflights users on 1/11. 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.
Fri 2/67:43 am
STL
-
FLG
1 stop5h 25m
American Airlines
Tue 2/107:24 am
FLG
-
STL
1 stop5h 29m
American Airlines
Deal found 1/11$406
This American Airlines deal was found by Cheapflights users on 1/11. 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 1/266:54 am
ORD
-
FLG
1 stop6h 54m
American Airlines
Fri 1/301:30 pm
FLG
-
ORD
1 stop7h 48m
American Airlines
Deal found 1/11$416
This American Airlines deal was found by Cheapflights users on 1/10. 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 2/241:15 pm
ORD
-
FLG
2 stops8h 41m
American Airlines
Sat 2/281:21 pm
FLG
-
ORD
2 stops9h 15m
American Airlines
Deal found 1/10$421
This American Airlines deal was found by Cheapflights users on 1/11. 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 1/279:11 am
ORD
-
FLG
2 stops9h 20m
American Airlines
Fri 1/3012:38 pm
FLG
-
ORD
2 stops10h 06m
American Airlines
Deal found 1/11$431
This American Airlines deal was found by Cheapflights users on 1/11. 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.
Fri 1/305:25 pm
ORD
-
FLG
1 stop7h 19m
American Airlines
Wed 2/412:38 pm
FLG
-
ORD
1 stop6h 23m
American Airlines
Deal found 1/11$436
This American Airlines deal was found by Cheapflights users on 1/12. 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 5/127:05 am
STL
-
FLG
2 stops11h 26m
American Airlines
Sat 5/1611:41 am
FLG
-
STL
2 stops9h 23m
American Airlines
Deal found 1/12$451

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 January 12, 2026.
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

Tue 3/31

11:46 am-11:07 pm

2 stops13h 21m

Flagstaff Pulliam

Tue 4/7

1:30 pm-11:04 pm

1 stop7h 34m

$366

ChicagoFlagstaff

ORD - FLG

ORDFLG

Chicago O'Hare Intl

Tue 2/24

6:10 am-12:11 pm

1 stop7h 01m

Flagstaff Pulliam

Fri 2/27

12:41 pm-10:31 pm

1 stop8h 50m

$376

St. LouisFlagstaff

STL - FLG

STLFLG

Lambert-St Louis

Fri 2/6

7:43 am-12:08 pm

1 stop5h 25m

Flagstaff Pulliam

Tue 2/10

1:18 pm-7:29 pm

1 stop5h 11m

$406

ChicagoFlagstaff

ORD - FLG

ORDFLG

Chicago O'Hare Intl

Tue 1/27

7:05 am-12:08 pm

1 stop6h 03m

Flagstaff Pulliam

Fri 1/30

6:05 pm-12:23 am

1 stop5h 18m

$416

ChicagoFlagstaff

ORD - FLG

ORDFLG

Chicago O'Hare Intl

Tue 4/7

10:16 am-4:31 pm

1 stop8h 15m

Flagstaff Pulliam

Sat 4/11

12:21 pm-10:34 pm

1 stop8h 13m

$426

ChicagoFlagstaff

ORD - FLG

ORDFLG

Chicago O'Hare Intl

Fri 1/30

5:25 pm-11:44 pm

1 stop7h 19m

Flagstaff Pulliam

Wed 2/4

12:38 pm-8:01 pm

1 stop6h 23m

$436

ChicagoFlagstaff

ORD - FLG

ORDFLG

Chicago O'Hare Intl

Sat 2/28

1:31 pm-8:56 pm

1 stop8h 25m

Flagstaff Pulliam

Sat 3/7

12:41 pm-9:25 pm

1 stop7h 44m

$456

ChicagoFlagstaff

ORD - FLG

ORDFLG

Chicago O'Hare Intl

Thu 3/5

5:00 am-12:11 pm

1 stop8h 11m

Flagstaff Pulliam

Mon 3/9

4:50 pm-12:51 am

1 stop6h 01m

$456

ChicagoFlagstaff

ORD - FLG

ORDFLG

Chicago O'Hare Intl

Wed 4/22

6:57 am-1:00 pm

1 stop8h 03m

Flagstaff Pulliam

Mon 4/27

7:52 pm-5:23 am

1 stop7h 31m

$456

ChicagoFlagstaff

ORD - FLG

ORDFLG

Chicago O'Hare Intl

Wed 4/15

8:09 am-1:00 pm

1 stop6h 51m

Flagstaff Pulliam

Mon 4/20

5:01 pm-12:35 am

1 stop5h 34m

$456

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/11

Showing 1-10 of 22 results
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
No data available for this route at this time. Please check back soon.

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 13h 21m. 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.

See more FAQs

Traveling to a place near Flagstaff?

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

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.
John F Kennedy Intl to Las Vegas flights
Newark to Las Vegas flights
O'Hare Intl to Las Vegas flights
Minneapolis to Sky Harbor Intl flights
O'Hare Intl to Sky Harbor Intl flights
John F Kennedy Intl to Sky Harbor Intl flights
Seattle to Las Vegas flights
Dallas/Fort Worth to Las Vegas flights
San Francisco to Las Vegas flights
Seattle to Sky Harbor Intl flights
Dulles Intl to Las Vegas flights
Newark to Sky Harbor Intl flights
Minneapolis to Las Vegas flights
Atlanta to Las Vegas flights
Boston to Las Vegas flights
LaGuardia to Las Vegas flights
Los Angeles to Las Vegas flights
Denver to Las Vegas flights
Baltimore to Las Vegas flights
Reagan-National to Las Vegas flights
Orlando to Las Vegas flights
Detroit to Sky Harbor Intl flights
Burbank to Las Vegas flights
Boston to Sky Harbor Intl flights
Detroit to Las Vegas flights
Dallas/Fort Worth to Sky Harbor Intl flights
Dulles Intl to Sky Harbor Intl flights
Santa Ana to Las Vegas flights
Portland to Las Vegas flights
Midway to Las Vegas flights
Fort Lauderdale to Las Vegas flights
Hobby to Las Vegas flights
Austin to Las Vegas flights
Philadelphia to Las Vegas flights
Cleveland to Las Vegas flights
San Francisco to Sky Harbor Intl flights
LaGuardia to Sky Harbor Intl flights
Denver to Sky Harbor Intl flights
Cincinnati to Las Vegas flights
Ontario to Las Vegas flights
George Bush Intcntl to Las Vegas flights
Baltimore to Sky Harbor Intl flights
Sacramento to Las Vegas flights
Midway to Sky Harbor Intl flights
Philadelphia to Sky Harbor Intl flights
Reagan-National to Sky Harbor Intl flights
San Jose to Las Vegas flights
San Antonio to Las Vegas flights
Tampa to Las Vegas flights
Raleigh to Las Vegas flights

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 January 12, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$405Average$635FlexibilityNo 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.