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Cheap flights from Illinois to Flagstaff from $281

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Illinois to Flagstaff departing on 7/17. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Illinois to Flagstaff

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
5:40 am - 11:59 am
STL
-
FLG
8h 19m
1 stop
American Airlines Logo
12:36 pm - 7:46 pm
FLG
-
STL
5h 10m
1 stop
$474American Airlines
Tue, Sep 15 - Sat, Sep 19
American Airlines Logo
10:14 am - 5:32 pm
STL
-
FLG
9h 18m
2 stops
American Airlines Logo
7:00 am - 2:45 pm
FLG
-
STL
5h 45m
1 stop
$484American Airlines
Sat, Oct 24 - Wed, Oct 28
American Airlines Logo
4:32 pm - 10:40 pm
STL
-
FLG
8h 08m
2 stops
American Airlines Logo
1:18 pm - 11:41 pm
FLG
-
STL
8h 23m
2 stops
$489American Airlines
Sat, Oct 24 - Wed, Oct 28
American Airlines Logo
2:25 pm - 5:49 pm
ORD
-
FLG
5h 24m
1 stop
American Airlines Logo
12:15 pm - 10:18 pm
FLG
-
ORD
8h 03m
1 stop
$498American Airlines
Wed, Sep 2 - Wed, Sep 9
American Airlines Logo
12:11 pm - 5:49 pm
ORD
-
FLG
7h 38m
2 stops
American Airlines Logo
8:37 am - 6:14 pm
FLG
-
ORD
7h 37m
1 stop
$508American Airlines
Wed, Sep 2 - Wed, Sep 9
American Airlines Logo
8:36 am - 11:54 am
STL
-
FLG
5h 18m
1 stop
American Airlines Logo
12:35 pm - 9:49 pm
FLG
-
STL
7h 14m
1 stop
$512American Airlines
Wed, Jul 8 - Sun, Jul 12
American Airlines Logo
8:30 am - 11:59 am
STL
-
FLG
5h 29m
1 stop
American Airlines Logo
12:15 pm - 11:41 pm
FLG
-
STL
9h 26m
2 stops
$518American Airlines
Tue, Sep 15 - Sat, Sep 19
American Airlines Logo
3:29 pm - 7:56 pm
ORD
-
FLG
6h 27m
1 stop
American Airlines Logo
1:48 pm - 9:19 pm
FLG
-
ORD
5h 31m
1 stop
$528American Airlines
Fri, Jun 19 - Wed, Jul 1
American Airlines Logo
3:33 pm - 7:24 pm
STL
-
FLG
5h 51m
1 stop
American Airlines Logo
4:04 pm - 11:50 pm
FLG
-
STL
6h 46m
1 stop
$532American Airlines
Wed, Oct 28 - Sun, Nov 1
American Airlines Logo
5:00 am - 11:13 am
ORD
-
FLG
8h 13m
1 stop
American Airlines Logo
1:48 pm - 12:39 am
FLG
-
ORD
8h 51m
2 stops
$538American Airlines
Fri, Jun 19 - Wed, Jul 1

American Airlines flights from Illinois to Flagstaff

Our best American Airlines deals on Illinois to Flagstaff flight tickets
American Airlines
Sep 15
STL5:40 amLambert-St Louis
8h 19m
1 stop
FLG11:59 amFlagstaff Pulliam
Sep 19
FLG12:36 pmFlagstaff Pulliam
5h 10m
1 stop
STL7:46 pmLambert-St Louis
$474
American Airlines
Oct 24
STL10:14 amLambert-St Louis
9h 18m
2 stops
FLG5:32 pmFlagstaff Pulliam
Oct 28
FLG7:00 amFlagstaff Pulliam
5h 45m
1 stop
STL2:45 pmLambert-St Louis
$484
American Airlines
Oct 24
STL4:32 pmLambert-St Louis
8h 08m
2 stops
FLG10:40 pmFlagstaff Pulliam
Oct 28
FLG1:18 pmFlagstaff Pulliam
8h 23m
2 stops
STL11:41 pmLambert-St Louis
$489

momondo 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, momondo users made 832,500 searches. Data last updated May 10, 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

St. LouisFlagstaff

STL - FLG

STLFLG

Lambert-St Louis

Tue 9/15

5:40 am-11:59 am

1 stop8h 19m

Flagstaff Pulliam

Sat 9/19

12:36 pm-7:46 pm

1 stop5h 10m

$474

St. LouisFlagstaff

STL - FLG

STLFLG

Lambert-St Louis

Sat 10/24

10:14 am-5:32 pm

2 stops9h 18m

Flagstaff Pulliam

Wed 10/28

7:00 am-2:45 pm

1 stop5h 45m

$484

St. LouisFlagstaff

STL - FLG

STLFLG

Lambert-St Louis

Sat 10/24

4:32 pm-10:40 pm

2 stops8h 08m

Flagstaff Pulliam

Wed 10/28

1:18 pm-11:41 pm

2 stops8h 23m

$489

ChicagoFlagstaff

ORD - FLG

ORDFLG

Chicago O'Hare Intl

Wed 9/2

2:25 pm-5:49 pm

1 stop5h 24m

Flagstaff Pulliam

Wed 9/9

12:15 pm-10:18 pm

1 stop8h 03m

$498

ChicagoFlagstaff

ORD - FLG

ORDFLG

Chicago O'Hare Intl

Wed 9/2

12:11 pm-5:49 pm

2 stops7h 38m

Flagstaff Pulliam

Wed 9/9

8:37 am-6:14 pm

1 stop7h 37m

$508

St. LouisFlagstaff

STL - FLG

STLFLG

Lambert-St Louis

Wed 7/8

8:36 am-11:54 am

1 stop5h 18m

Flagstaff Pulliam

Sun 7/12

12:35 pm-9:49 pm

1 stop7h 14m

$512

St. LouisFlagstaff

STL - FLG

STLFLG

Lambert-St Louis

Tue 9/15

8:30 am-11:59 am

1 stop5h 29m

Flagstaff Pulliam

Sat 9/19

12:15 pm-11:41 pm

2 stops9h 26m

$518
Quickest round-trip

ChicagoFlagstaff

ORD - FLG

ORDFLG

Chicago O'Hare Intl

Fri 6/19

3:29 pm-7:56 pm

1 stop6h 27m

Flagstaff Pulliam

Wed 7/1

1:48 pm-9:19 pm

1 stop5h 31m

$528

St. LouisFlagstaff

STL - FLG

STLFLG

Lambert-St Louis

Wed 10/28

3:33 pm-7:24 pm

1 stop5h 51m

Flagstaff Pulliam

Sun 11/1

4:04 pm-11:50 pm

1 stop6h 46m

$532

ChicagoFlagstaff

ORD - FLG

ORDFLG

Chicago O'Hare Intl

Fri 6/19

5:00 am-11:13 am

1 stop8h 13m

Flagstaff Pulliam

Wed 7/1

1:48 pm-12:39 am

2 stops8h 51m

$538

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Flagstaff from

How to get the cheapest flight ticket from Illinois to Flagstaff

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Flagstaff?

The month of November is, on average, the cheapest month to fly to Flagstaff from Illinois, with most prices found around $385. The month of May is another great option to travel to Flagstaff, with average flight prices from Illinois averaging around $385.

Can stopping save me money on Illinois to Flagstaff flights?

You could potentially save up to 48% on your flight if you consider stops on a Illinois to Flagstaff flight.

Cheap Illinois to Flagstaff flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Illinois to Flagstaff

Fastest flight time

5h 51m

Direct flights

None
The fastest flight from Illinois to Flagstaff takes 5h 51m
There are no direct flights from Illinois to Flagstaff. There are no popular flight routes from Illinois to Flagstaff.
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Frequently asked questions about flying from Illinois to Flagstaff

  • When did momondo last update prices for flights from Illinois to Flagstaff Pulliam Airport?

    Prices for flights from Illinois to Flagstaff Pulliam Airport are updated daily.

  • How many operators does momondo search for flights from Illinois to Flagstaff Pulliam Airport?

  • How old do you have to be to fly from Illinois to Flagstaff Pulliam Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Illinois to Flagstaff Pulliam Airport.

  • What documentation or ID do you need to fly to Flagstaff Pulliam Airport?

    The travel and health documents required for your trip to Flagstaff Pulliam Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Flagstaff Pulliam Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from Illinois to Flagstaff

Compare and see reviews for airlines that fly from Illinois to Flagstaff with momondo
Airline
Rating
Free Cancellation
Price
American AirlinesPriceFrom $405Free CancellationRating
7.1
11,667 reviews
Search American Airlines flights

Traveling to a place near Flagstaff?

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

Why use momondo?

Why should I use momondo to find a flight deal from Illinois to Flagstaff?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Illinois to Flagstaff for you.

Can I find flights from Illinois to Flagstaff with flexible booking policies on momondo?

Yes. All flights to Flagstaff from Illinois on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Illinois to Flagstaff?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Flagstaff from Illinois.

I’m not ready to book a flight from Illinois to Flagstaff right now. Can momondo alert me if prices change?

Price alerts on flights to Flagstaff from Illinois are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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