United Flight 550 Deals & Information (2026/2027)

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United Flight 550 Route Deals From $203

The cheapest prices found with in the last 7 days for return flights were $301 and $203 for one-way flights to Denver Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Thu, Jun 25 - Fri, Jun 26
YYC
Calgary Intl.
DEN
Denver Intl.
$301 Roundtrip, found 6 days ago
$301
Roundtrip
found 6 days ago
Select United flight, departing Thu, Jun 25 from Calgary Intl. to Denver Intl., returning Fri, Jun 26, priced at $301 found 6 days ago
Sat, Jun 27 - Sun, Jun 28
YYC
Calgary Intl.
DEN
Denver Intl.
$357 Roundtrip, found 18 hours ago
$357
Roundtrip
found 18 hours ago
Select United flight, departing Sat, Jun 27 from Calgary Intl. to Denver Intl., returning Sun, Jun 28, priced at $357 found 18 hours ago
Tue, Jun 9 - Fri, Jun 12
YYC
Calgary Intl.
DEN
Denver Intl.
$358 Roundtrip, found 20 hours ago
$358
Roundtrip
found 20 hours ago
Select United flight, departing Tue, Jun 9 from Calgary Intl. to Denver Intl., returning Fri, Jun 12, priced at $358 found 20 hours ago
Tue, Jun 9 - Fri, Jun 12
YYC
Calgary Intl.
DEN
Denver Intl.
$365 Roundtrip, found 20 hours ago
$365
Roundtrip
found 20 hours ago
Select United flight, departing Tue, Jun 9 from Calgary Intl. to Denver Intl., returning Fri, Jun 12, priced at $365 found 20 hours 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.