United Flight 550 Deals & Information (2025/2026)

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United Flight 550 Route Deals From $116

The cheapest prices found with in the last 7 days for return flights were $607 and $116 for one-way flights to Denver Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Tue, Jul 1 - Sun, Jul 6
YYC
Calgary Intl.
DEN
Denver Intl.
$607 Roundtrip, found 1 hour ago
$607
Roundtrip
found 1 hour ago
Select United flight, departing Tue, Jul 1 from Calgary Intl. to Denver Intl., returning Sun, Jul 6, priced at $607 found 1 hour ago

Frequently asked questions

What route does flight number UA550 take?
UA550 takes a number of routes. The most frequently flown is between O'Hare Airport and McCarran Airport, which is a direct flight. This service takes about 3 hours and 49 minutes. However, there may possibly be other flights with the same number that have one or more stops.
What terminal does UA550 fly out of?
Terminal 1 is the terminal you'll most likely depart from if you're booked on a flight out of ORD. O'Hare Airport to LAS is the most frequently traveled route for flight number UA550.
What kind of plane is on flight number UA550?
Chances are you'll be on board a Boeing 737-900 if you're flying from O'Hare Intl. Airport (ORD) to McCarran Airport, a popular route for flight number UA550.
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 UA550 flight with Travelocity, please visit our Customer Service Portal.