United Flight 3550 Deals & Information (2025/2026)

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United Flight 3550 Route Deals From $261

The cheapest prices found with in the last 7 days for return flights were $256 and $261 for one-way flights to O'Hare Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Fri, Jan 16 - Tue, Jan 27
EYW
Key West Intl.
ORD
O'Hare Intl.
$256 Roundtrip, found 5 days ago
$256
Roundtrip
found 5 days ago
Select United flight, departing Fri, Jan 16 from Key West Intl. to O'Hare Intl., returning Tue, Jan 27, priced at $256 found 5 days ago
Fri, Jan 16 - Tue, Jan 27
EYW
Key West Intl.
ORD
O'Hare Intl.
$266 Roundtrip, found 5 days ago
$266
Roundtrip
found 5 days ago
Select United flight, departing Fri, Jan 16 from Key West Intl. to O'Hare Intl., returning Tue, Jan 27, priced at $266 found 5 days ago
Fri, Jan 16 - Tue, Jan 27
EYW
Key West Intl.
ORD
O'Hare Intl.
$275 Roundtrip, found 5 days ago
$275
Roundtrip
found 5 days ago
Select United flight, departing Fri, Jan 16 from Key West Intl. to O'Hare Intl., returning Tue, Jan 27, priced at $275 found 5 days ago
Fri, Jan 16 - Tue, Jan 27
EYW
Key West Intl.
ORD
O'Hare Intl.
$348 Roundtrip, found 5 days ago
$348
Roundtrip
found 5 days ago
Select United flight, departing Fri, Jan 16 from Key West Intl. to O'Hare Intl., returning Tue, Jan 27, priced at $348 found 5 days ago

Frequently asked questions

What route does flight number UA3550 take?
UA3550 takes around 3 hours and 54 minutes to fly directly from O'Hare Airport to Tucson Intl. Airport. Sure, there's magic in the destination, but getting there is half the fun!
What terminal does UA3550 fly out of?
Passengers with seats booked on flight number UA3550 from O'Hare Intl. Airport (ORD) to TUS generally depart from Terminal 2.
What kind of plane is on flight number UA3550?
The route for UA3550 is most commonly Chicago, IL Airport (ORD-O'Hare Intl.) to Tucson Intl. Airport, and the Embraer 170 is the type of plane you'll probably be traveling aboard.
If I am not able to travel due to COVID-19, can I change my flight to a later date?
For more info about changing your UA3550 flight with Travelocity, please visit our Customer Service Portal.