How does KAYAK find such low prices on flights from Illinois to Flagstaff?

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Illinois to Flagstaff.

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Illinois to Flagstaff?

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Flagstaff from Illinois is likely to change within 7 days, so travelers know whether to wait or book now.

What is the Hacker Fare option on flights from Illinois to Flagstaff?

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Flagstaff with an airline and back to Illinois with another airline.

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Illinois to Flagstaff?

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Flagstaff from Illinois up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

$308 CHEAP FLIGHTS from Illinois to Flagstaff

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Flight Deals

Cheap Flights from Illinois to Flagstaff

Discover the best prices for you by selecting your travel dates on KAYAK.

Round-trip

One-way

Last minute

Recent round-trip flight deals from Illinois to Flagstaff

Sat, Oct 3 - Tue, Oct 6

2:30 pm - 8:07 pmSTL Lambert-St Louis-FLG Flagstaff Pulliam

7h 37m1 stop Phoenix Sky Harbor Intl

12:45 pm - 9:59 pmFLG Flagstaff Pulliam-STL Lambert-St Louis

7h 14m1 stop Dallas/Fort Worth

$484American Airlines

Tue, Sep 29 - Sat, Oct 3

7:09 am - 11:53 amORD Chicago O'Hare Intl-FLG Flagstaff Pulliam

6h 44m1 stop Dallas/Fort Worth

12:37 pm - 11:30 pmFLG Flagstaff Pulliam-ORD Chicago O'Hare Intl

8h 53m1 stop Dallas/Fort Worth

$508American Airlines

Tue, Sep 15 - Tue, Sep 22

1:45 pm - 8:07 pmORD Chicago O'Hare Intl-FLG Flagstaff Pulliam

8h 22m1 stop Phoenix Sky Harbor Intl

10:40 am - 9:30 pmFLG Flagstaff Pulliam-ORD Chicago O'Hare Intl

8h 50m1 stop Phoenix Sky Harbor Intl

$508American Airlines

Tue, Sep 22 - Sat, Sep 26

10:33 am - 3:00 pmORD Chicago O'Hare Intl-FLG Flagstaff Pulliam

6h 27m1 stop Phoenix Sky Harbor Intl

11:43 am - 9:30 pmFLG Flagstaff Pulliam-ORD Chicago O'Hare Intl

7h 47m1 stop Phoenix Sky Harbor Intl

$508American Airlines

Wed, Nov 11 - Wed, Nov 18

6:59 am - 12:50 pmORD Chicago O'Hare Intl-FLG Flagstaff Pulliam

6h 51m1 stop Dallas/Fort Worth

7:37 am - 2:43 pmFLG Flagstaff Pulliam-ORD Chicago O'Hare Intl

6h 06m1 stop Phoenix Sky Harbor Intl

$508American Airlines

Fri, Dec 4 - Wed, Dec 9

5:00 am - 12:50 pmSTL Lambert-St Louis-FLG Flagstaff Pulliam

8h 50m1 stop Dallas/Fort Worth

1:22 pm - 8:19 pmFLG Flagstaff Pulliam-STL Lambert-St Louis

5h 57m1 stop Dallas/Fort Worth

$522American Airlines

Wed, Jan 20 - Mon, Jan 25

11:00 am - 5:32 pmSTL Lambert-St Louis-FLG Flagstaff Pulliam

7h 32m1 stop Phoenix Sky Harbor Intl

6:05 pm - 11:59 pmFLG Flagstaff Pulliam-STL Lambert-St Louis

4h 54m1 stop Phoenix Sky Harbor Intl

$522American Airlines

Tue, Dec 22 - Wed, Dec 30

5:00 am - 12:47 pmSTL Lambert-St Louis-FLG Flagstaff Pulliam

8h 47m1 stop Dallas/Fort Worth

6:43 am - 2:00 pmFLG Flagstaff Pulliam-STL Lambert-St Louis

6h 17m1 stop Phoenix Sky Harbor Intl

$548American Airlines

Tue, Dec 22 - Tue, Dec 29

2:45 pm - 8:19 pmSTL Lambert-St Louis-FLG Flagstaff Pulliam

6h 34m1 stop Phoenix Sky Harbor Intl

1:17 pm - 7:41 pmFLG Flagstaff Pulliam-STL Lambert-St Louis

5h 24m1 stop Dallas/Fort Worth

$548American Airlines

Sat, Oct 3 - Tue, Oct 6

5:00 am - 3:00 pmSTL Lambert-St Louis-FLG Flagstaff Pulliam

12h 00m2 stops Chicago O'Hare Intl Phoenix Sky Harbor Intl

12:45 pm - 7:48 pmFLG Flagstaff Pulliam-STL Lambert-St Louis

5h 03m1 stop Dallas/Fort Worth

$549American Airlines

Recent last minute flight deals from Illinois to Flagstaff

Sat, Aug 22 - Thu, Aug 27

6:00 am - 11:54 amEVV Evansville Dress Regional-FLG Flagstaff Pulliam

7h 54m1 stop Dallas/Fort Worth

11:42 am - 11:27 pmFLG Flagstaff Pulliam-EVV Evansville Dress Regional

9h 45m2 stops Phoenix Sky Harbor Intl Dallas/Fort Worth

$680American Airlines

Sat, Aug 22 - Sun, Aug 23

6:00 am - 11:54 amORD Chicago O'Hare Intl-FLG Flagstaff Pulliam

7h 54m1 stop Dallas/Fort Worth

12:35 pm - 11:30 pmFLG Flagstaff Pulliam-ORD Chicago O'Hare Intl

8h 55m1 stop Dallas/Fort Worth

$689American Airlines

Fri, Aug 21 - Sat, Aug 22

7:00 am - 11:54 amORD Chicago O'Hare Intl-FLG Flagstaff Pulliam

6h 54m1 stop Dallas/Fort Worth

12:35 pm - 10:13 pmFLG Flagstaff Pulliam-ORD Chicago O'Hare Intl

7h 38m1 stop Dallas/Fort Worth

$689American Airlines

Sat, Aug 22 - Mon, Aug 24

6:59 am - 1:20 pmORD Chicago O'Hare Intl-FLG Flagstaff Pulliam

8h 21m1 stop Phoenix Sky Harbor Intl

1:52 pm - 10:00 pmFLG Flagstaff Pulliam-ORD Chicago O'Hare Intl

6h 08m1 stop Phoenix Sky Harbor Intl

$689American Airlines

Thu, Aug 20 - Sat, Aug 22

7:00 am - 11:54 amORD Chicago O'Hare Intl-FLG Flagstaff Pulliam

6h 54m1 stop Dallas/Fort Worth

1:52 pm - 10:30 pmFLG Flagstaff Pulliam-ORD Chicago O'Hare Intl

6h 38m1 stop Phoenix Sky Harbor Intl

$689American Airlines

Sat, Aug 22 - Thu, Aug 27

6:00 am - 1:20 pmEVV Evansville Dress Regional-FLG Flagstaff Pulliam

9h 20m2 stops Dallas/Fort Worth Phoenix Sky Harbor Intl

11:42 am - 11:27 pmFLG Flagstaff Pulliam-EVV Evansville Dress Regional

9h 45m2 stops Phoenix Sky Harbor Intl Dallas/Fort Worth

$693American Airlines

Sat, Aug 22 - Sun, Aug 23

5:00 am - 9:49 amORD Chicago O'Hare Intl-FLG Flagstaff Pulliam

6h 49m1 stop Phoenix Sky Harbor Intl

10:30 am - 11:30 pmFLG Flagstaff Pulliam-ORD Chicago O'Hare Intl

11h 00m2 stops Phoenix Sky Harbor Intl Dallas/Fort Worth

$699American Airlines

Sat, Aug 22 - Mon, Aug 24

5:00 am - 9:49 amORD Chicago O'Hare Intl-FLG Flagstaff Pulliam

6h 49m1 stop Phoenix Sky Harbor Intl

10:30 am - 10:13 pmFLG Flagstaff Pulliam-ORD Chicago O'Hare Intl

9h 43m2 stops Phoenix Sky Harbor Intl Dallas/Fort Worth

$699American Airlines

Fri, Aug 21 - Mon, Aug 24

5:00 am - 11:11 amORD Chicago O'Hare Intl-FLG Flagstaff Pulliam

8h 11m1 stop Phoenix Sky Harbor Intl

7:00 am - 2:22 pmFLG Flagstaff Pulliam-ORD Chicago O'Hare Intl

5h 22m1 stop Phoenix Sky Harbor Intl

$702American Airlines

Thu, Aug 20 - Mon, Aug 24

6:59 am - 11:11 amORD Chicago O'Hare Intl-FLG Flagstaff Pulliam

6h 12m1 stop Phoenix Sky Harbor Intl

12:35 pm - 10:13 pmFLG Flagstaff Pulliam-ORD Chicago O'Hare Intl

7h 38m1 stop Dallas/Fort Worth

$702American Airlines

Useful Info

Low season	July
High season	May
Cheapest flight	$308

Best time to beat the crowds with an average 11% drop in price.

Most popular time to fly and prices are also 1% lower on average.

Flight from Chicago to Flagstaff

How does KAYAK find such low prices on flights from Illinois to Flagstaff?
KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Illinois to Flagstaff.
How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Illinois to Flagstaff?
KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Flagstaff from Illinois is likely to change within 7 days, so travelers know whether to wait or book now.
What is the Hacker Fare option on flights from Illinois to Flagstaff?
Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Flagstaff with an airline and back to Illinois with another airline.
What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Illinois to Flagstaff?
Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Flagstaff from Illinois up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Williams

Everything you need to know for your flight to Flagstaff

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Flagstaff (FLG)

FLG

$308 Find Cheap Flights from Illinois to Flagstaff - Compare and Save

Cheap Flights from Illinois to Flagstaff

Recent round-trip flight deals from Illinois to Flagstaff

Recent one-way flight deals from Illinois to Flagstaff

Recent last minute flight deals from Illinois to Flagstaff

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Everything you need to know for your flight to Flagstaff

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Choose which airport to fly into in Flagstaff

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