United Flight WN203 Deals & Information (2025/2026)

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United Flight 203 Route Deals From $101

The cheapest prices found with in the last 7 days for return flights were and $101 for one-way flights to Denver Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Frequently asked questions

What route does flight number UA203 take?
UA203 flies directly from Chicago, IL Airport (ORD-O'Hare Intl.) to LAS. During this trip, expect to be in the air for approximately 3 hours and 41 minutes. Book ahead to lock in your favorite seat.
How often is UA203 on time?
United Airlines flight number UA203 between O'Hare Airport and McCarran Intl. Airport (LAS) lands on time 87% of the time --- so you can relax with confidence knowing that you'll get to your destination ASAP. If this service happens to be delayed, you can expect a wait time of about 10 minutes. This route has a 3.55-star rating.
What terminal does UA203 fly out of?
Flight number UA203 runs between Chicago, IL Airport (ORD-O'Hare Intl.) and McCarran Airport, and travelers taking this flight typically take off from Terminal 1.
What kind of plane is on flight number UA203?
The route for flight number UA203 is most commonly ORD to McCarran Intl. Airport (LAS), and the Boeing 737-900 is the aircraft model you'll probably be flying on.
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 UA203 flight with Travelocity, please visit our Customer Service Portal.