United Flight 1811 Deals & Information (2025/2026)

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United Flight 1811 Route Deals From $76

The cheapest prices found with in the last 7 days for return flights were $151 and $76 for one-way flights to O'Hare Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Thu, Oct 23 - Mon, Oct 27
DEN
Denver Intl.
ORD
O'Hare Intl.
$151 Roundtrip, found 4 hours ago
$151
Roundtrip
found 4 hours ago
Select United flight, departing Thu, Oct 23 from Denver Intl. to O'Hare Intl., returning Mon, Oct 27, priced at $151 found 4 hours ago

Frequently asked questions

What route does flight number UA1811 take?
Flight number UA1811 takes roughly 2 hours and 31 minutes to fly direct from IAH to Denver, CO Airport (DEN-Denver Intl.). Sure, there's magic in the destination, but the journey is always half the fun!
How often is UA1811 on time?
If you have booked tickets on United Airlines flight number UA1811 from Houston, TX Airport (IAH-George Bush Intercontinental) to Denver Intl. Airport (DEN), it's nice to know that 86% of these journeys touch down on time. On the odd occasion that there's a delay, you can expect an average wait time of about 8 minutes. This service has a 4.05-star rating.
What terminal does UA1811 fly out of?
Flights between George Bush Intercontinental Airport (IAH) and DEN are served by UA1811, and passengers who opt for this route usually leave from Terminal C.
What kind of plane is on flight number UA1811?
The Boeing 757-300 is the aircraft model that's generally used for flight number UA1811. More often than not, this flight leaves from George Bush Intercontinental Airport (IAH) and arrives at Denver, CO Airport (DEN-Denver Intl.).
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 UA1811 flight with Travelocity, please visit our Customer Service Portal.