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

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 Tucson.

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

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Tucson 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 Tucson?

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 Tucson 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 Tucson?

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 Tucson from Illinois up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

$129 CHEAP FLIGHTS from Illinois to Tucson

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Flight Deals

Cheap Flights from Illinois to Tucson

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

Round-trip

One-way

Last minute

Direct

Recent round-trip flight deals from Illinois to Tucson

Wed, Oct 21 - Sat, Oct 24

8:03 am - 11:11 amSTL Lambert-St Louis-TUS Tucson

5h 08m1 stop Phoenix Sky Harbor Intl

6:00 am - 2:30 pmTUS Tucson-STL Lambert-St Louis

6h 30m1 stop Dallas/Fort Worth

$257American Airlines

Sat, Dec 5 - Tue, Dec 15

5:25 pm - 9:40 pmSTL Lambert-St Louis-TUS Tucson

5h 15m1 stop Denver Intl

12:35 pm - 9:15 pmTUS Tucson-STL Lambert-St Louis

7h 40m1 stop Las Vegas Harry Reid Intl

$276Southwest

Sat, Dec 5 - Tue, Dec 15

8:40 am - 5:10 pmSTL Lambert-St Louis-TUS Tucson

9h 30m2 stops San Antonio Denver Intl

11:30 am - 6:35 pmTUS Tucson-STL Lambert-St Louis

6h 05m1 stop Denver Intl

$282Southwest

Sat, Oct 24 - Sat, Oct 31

7:55 pm - 9:40 pmMDW Chicago Midway-TUS Tucson

3h 45mnonstop

7:25 am - 12:45 pmTUS Tucson-MDW Chicago Midway

3h 20mnonstop

$287Southwest

Tue, Nov 24 - Tue, Dec 1

5:11 pm - 12:11 amMLI Moline Quad-City-TUS Tucson

8h 00m1 stop Chicago O'Hare Intl

3:41 pm - 12:07 amTUS Tucson-MLI Moline Quad-City

7h 26m1 stop Chicago O'Hare Intl

$321American Airlines

Wed, Nov 11 - Sat, Nov 14

5:13 pm - 11:59 pmMLI Moline Quad-City-TUS Tucson

7h 46m1 stop Dallas/Fort Worth

2:21 pm - 11:48 pmTUS Tucson-MLI Moline Quad-City

8h 27m1 stop Dallas/Fort Worth

$321American Airlines

Wed, Dec 16 - Thu, Dec 24

6:30 am - 3:37 pmMLI Moline Quad-City-TUS Tucson

10h 07m2 stops Chicago O'Hare Intl Denver Intl

2:46 pm - 8:51 pmTUS Tucson-MLI Moline Quad-City

5h 05m1 stop Denver Intl

$335United Airlines

Wed, Dec 16 - Thu, Dec 24

2:36 pm - 11:06 pmMLI Moline Quad-City-TUS Tucson

9h 30m1 stop Chicago O'Hare Intl

2:46 pm - 8:51 pmTUS Tucson-MLI Moline Quad-City

5h 05m1 stop Denver Intl

$357United Airlines

Sat, Dec 19 - Thu, Dec 24

5:08 pm - 11:06 pmMLI Moline Quad-City-TUS Tucson

6h 58m1 stop Atlanta Hartsfield-Jackson

1:10 pm - 10:30 pmTUS Tucson-MLI Moline Quad-City

8h 20m1 stop Atlanta Hartsfield-Jackson

$370Delta

Sat, Dec 19 - Fri, Dec 25

5:08 pm - 11:06 pmMLI Moline Quad-City-TUS Tucson

6h 58m1 stop Atlanta Hartsfield-Jackson

6:20 am - 4:27 pmTUS Tucson-MLI Moline Quad-City

9h 07m1 stop Atlanta Hartsfield-Jackson

$370Delta

Recent last minute flight deals from Illinois to Tucson

Wed, Sep 16 - Wed, Sep 30

4:33 pm - 8:30 pmMLI Moline Quad-City-TUS Tucson

5h 57m1 stop Dallas/Fort Worth

3:54 pm - 11:18 pmTUS Tucson-MLI Moline Quad-City

5h 24m1 stop Dallas/Fort Worth

$386American Airlines

Wed, Sep 16 - Wed, Sep 30

7:11 am - 12:15 pmMLI Moline Quad-City-TUS Tucson

7h 04m1 stop Dallas/Fort Worth

12:09 pm - 12:05 amTUS Tucson-MLI Moline Quad-City

9h 56m2 stops Dallas/Fort Worth Chicago O'Hare Intl

$391American Airlines

Wed, Sep 16 - Wed, Sep 30

6:00 am - 12:15 pmMLI Moline Quad-City-TUS Tucson

8h 15m2 stops Chicago O'Hare Intl Dallas/Fort Worth

12:09 pm - 12:05 amTUS Tucson-MLI Moline Quad-City

9h 56m2 stops Dallas/Fort Worth Chicago O'Hare Intl

$396American Airlines

Sat, Sep 19 - Sat, Sep 26

6:55 am - 1:45 pmMDW Chicago Midway-TUS Tucson

8h 50m1 stop Las Vegas Harry Reid Intl

1:20 pm - 8:50 pmTUS Tucson-MDW Chicago Midway

5h 30m1 stop Denver Intl

$535Southwest

Sat, Sep 19 - Sat, Sep 26

6:55 am - 12:40 pmMDW Chicago Midway-TUS Tucson

7h 45m2 stops Las Vegas Harry Reid Intl Phoenix Sky Harbor Intl

9:35 am - 7:35 pmTUS Tucson-MDW Chicago Midway

8h 00m1 stop Las Vegas Harry Reid Intl

$540Southwest

Sat, Sep 19 - Wed, Sep 23

12:29 pm - 9:40 pmORD Chicago O'Hare Intl-TUS Tucson

11h 11m2 stops Minneapolis St Paul Salt Lake City

6:00 am - 4:37 pmTUS Tucson-ORD Chicago O'Hare Intl

8h 37m1 stop Atlanta Hartsfield-Jackson

$540Delta

Tue, Sep 15 - Thu, Sep 17

9:00 am - 11:13 amORD Chicago O'Hare Intl-TUS Tucson

4h 13mnonstop

6:30 am - 4:41 pmTUS Tucson-ORD Chicago O'Hare Intl

8h 11m1 stop Houston George Bush Intcntl

$543United Airlines

Sat, Sep 19 - Sat, Sep 26

6:35 am - 12:40 pmMDW Chicago Midway-TUS Tucson

8h 05m2 stops Lambert-St Louis Phoenix Sky Harbor Intl

10:40 am - 8:50 pmTUS Tucson-MDW Chicago Midway

8h 10m2 stops Phoenix Sky Harbor Intl Denver Intl

$545Southwest

Sat, Sep 19 - Wed, Sep 23

10:44 am - 9:40 pmORD Chicago O'Hare Intl-TUS Tucson

12h 56m2 stops Atlanta Hartsfield-Jackson Salt Lake City

6:35 am - 8:30 pmTUS Tucson-ORD Chicago O'Hare Intl

11h 55m2 stops Los Angeles Detroit Metropolitan Wayne County

$546Delta

Tue, Sep 15 - Thu, Sep 17

7:00 am - 12:27 pmORD Chicago O'Hare Intl-TUS Tucson

7h 27m1 stop Denver Intl

1:29 pm - 10:00 pmTUS Tucson-ORD Chicago O'Hare Intl

6h 31m1 stop Denver Intl

$553United Airlines

Useful Info

Low season	August
High season	February
Cheapest flight	$129

Best time to beat the crowds but there is an average 16% increase in price.

Most popular time to fly and prices are also 13% lower on average.

Flight from St. Louis to Tucson

How does KAYAK find such low prices on flights from Illinois to Tucson?
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 Tucson.
How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Illinois to Tucson?
KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Tucson 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 Tucson?
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 Tucson 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 Tucson?
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 Tucson from Illinois up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.