United Flight WS355 Deals & Information (2025/2026)

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United Flight 355 Route Deals From $113

The cheapest prices found with in the last 7 days for return flights were $160 and $113 for one-way flights to Denver Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Sun, Aug 31 - Wed, Sep 3
YYC
Calgary Intl.
DEN
Denver Intl.
$160 Roundtrip, found 1 day ago
$160
Roundtrip
found 1 day ago
Select United flight, departing Sun, Aug 31 from Calgary Intl. to Denver Intl., returning Wed, Sep 3, priced at $160 found 1 day ago
Sun, Aug 31 - Wed, Sep 3
YYC
Calgary Intl.
DEN
Denver Intl.
$190 Roundtrip, found 1 day ago
$190
Roundtrip
found 1 day ago
Select United flight, departing Sun, Aug 31 from Calgary Intl. to Denver Intl., returning Wed, Sep 3, priced at $190 found 1 day ago
Sun, Jun 29 - Mon, Jun 30
YYC
Calgary Intl.
DEN
Denver Intl.
$199 Roundtrip, found 2 days ago
$199
Roundtrip
found 2 days ago
Select United flight, departing Sun, Jun 29 from Calgary Intl. to Denver Intl., returning Mon, Jun 30, priced at $199 found 2 days ago
Sun, Jun 29 - Mon, Jun 30
YYC
Calgary Intl.
DEN
Denver Intl.
$201 Roundtrip, found 2 days ago
$201
Roundtrip
found 2 days ago
Select United flight, departing Sun, Jun 29 from Calgary Intl. to Denver Intl., returning Mon, Jun 30, priced at $201 found 2 days ago

Frequently asked questions

What route does flight number UA355 take?
Flight number UA355 takes around 2 hours to jet directly from Washington Dulles Intl. Airport (IAD) to Jacksonville Intl. Airport. Sure, there's magic in the destination, but half the fun is in the journey!
What kind of plane is on flight number UA355?
Prepare to step aboard an Airbus A319 if you're traveling on flight UA355. Most services from Washington, DC Airport (IAD-Washington Dulles Intl.) to Jacksonville Intl. Airport operate using this type of aircraft.
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 UA355 flight with Travelocity, please visit our Customer Service Portal.