United Flight 4455 Deals & Information (2026/2027)

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United Flight 4455 Route Deals From $267

The cheapest prices found with in the last 7 days for return flights were $687 and $267 for one-way flights to Washington Dulles Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Fri, Jan 30 - Mon, Feb 2
YOW
Macdonald-Cartier Intl.
IAD
Washington Dulles Intl.
$687 Roundtrip, found 1 day ago
$687
Roundtrip
found 1 day ago
Select United flight, departing Fri, Jan 30 from Macdonald-Cartier Intl. to Washington Dulles Intl., returning Mon, Feb 2, priced at $687 found 1 day ago

Frequently asked questions

What route does flight number UA4455 take?
UA4455 travels from Joe Foss Field to O'Hare Intl. Airport (ORD) and flies direct. This trip typically takes 1 hour and 44 minutes.
What kind of plane is on flight number UA4455?
Get ready to cruise aboard a Canadair (Bombardier) Regional Jet 550 if you're taking off on flight UA4455. Almost all flights from Joe Foss Field to O'Hare Intl. Airport (ORD) are operated using this aircraft model.
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 UA4455 flight with Travelocity, please visit our Customer Service Portal.