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Find low faresSouthwest® flights from Chicago (O'Hare) to Tucson from $136
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1 Passenger
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today
Low fares from Chicago (O'Hare) to Tucson
$
Chicago (Midway) (MDW)to
Tucson (TUS)
Depart: 02/21/2026
One-way
Basic
From
$137
Seen: 13 hrs ago
Chicago (Midway) (MDW)to
Tucson (TUS)
Depart: 02/21/2026
One-way
Choice
From
$146
Seen: 8 hrs ago
Chicago (Midway) (MDW)to
Tucson (TUS)
Depart: 03/11/2026
One-way
Basic
From
$154
Seen: 20 hrs ago
Chicago (Midway) (MDW)to
Tucson (TUS)
Depart: 04/07/2026
One-way
Basic
From
$154
Seen: 12 hrs ago
Chicago (Midway) (MDW)to
Tucson (TUS)
Depart: 04/29/2026
One-way
Basic
From
$154
Seen: 21 hrs ago
Chicago (Midway) (MDW)to
Tucson (TUS)
Depart: 04/04/2026
One-way
Basic
From
$154
Seen: 22 hrs ago
Explore flights from Chicago (O'Hare) to Tucson
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Flight Details
Departing from:
O'Hare International Airport
Arriving at:
Tucson International Airport
Distance:
1437 miles
Route Information
66† Weekly flights
† Weekly flights based on DOT published scheduled average flights Monday through Sunday between 9/1/2025 and 9/30/2025. Note: route may not operate every day of the week.
‡ Nonstop flights based on DOT published scheduled average flights Monday through Sunday between 9/1/2025 and 9/30/2025.
Questions we hear the most
There are 66 weekly flights from Chicago (O'Hare) to Tucson on Southwest Airlines.
To find the lowest fares by day and time to fly Chicago (O'Hare) to Tucson with Southwest, check out our Low Fare Calendar.
You can rent a car at Tucson International Airport book yours with your flight.
Yes! Flights from Chicago (O'Hare) to Tucson—or from here or there to anywhere—can be changed with no change fees. Fare difference may apply.
Check the status of your upcoming Southwest flight.
Check out the Southwest Airlines® Help Center for answers about everything Southwest.