UA8155 United Airlines - Flight Status

Below, you can find details about United Airlines flight UA8155, which currently operates between the airports of Portland - Portland International Airport (Airport Code PDX) and Chicago - Chicago O'Hare International Airport (Airport Code ORD).
This flight data pertains specifically to the flight's details for Monday, April 06, 2026.

UA8155 On Time performance:
n/a
It is not possible to calculate the On-Time Performance for this flight accurately due to insufficient or non-representative data, as doing so could lead to misleading conclusions.

Flight Status

UA8155 United Airlines from Portland

We only provide flight information for yesterday, today and tomorrow. This flight is not scheduled for this interval of time.

Airline information

United Airlines
United Airlines

Departure

Portland (PDX)
April 06, 2026
Portland International Airport

Arrival

Chicago (ORD)
April 06, 2026
Chicago O'Hare International Airport
Disclaimer
The information displayed on this website is gathered from third-party providers with a wide reputation on the sector, which in turn obtain the information from the airlines. This data is provided only for informative purposes. www.airport-ohare.com assumes no responsibility for loss or damage as a result of relying on information posted here. Please contact your airline to verify flight status.

Additional Information

Which is the frequency of flight UA8155?
The flight UA8155 is currently not scheduled at Chicago O'Hare Airport (ORD).

Which is the distance of flight UA8155?
The distance between the two airports is 1735 miles.

Are the departure airport and arrival airport at the same Time Zone?
No, each airport is in a different timezone. The times shown above, are presented in the local time of each respective airport.
Current Time in Portland: 2026-04-18 23:07:00
Current Time in Chicago: 2026-04-19 01:07:00

Alternative Flights

The following airlines serves the same route between Portland and Chicago:

American Airlines
- Flight Number: AA1508. (On Time performance: 94 - Average Delay: 22 minutes)
- Flight Number: AA2197. (On Time performance: 100 - Average Delay: 0 minutes)
- Flight Number: AA2511. (On Time performance: 56 - Average Delay: 24 minutes)
- Flight Number: AA3099. (On Time performance: 75 - Average Delay: 8 minutes)
- Flight Number: AA820. (On Time performance: 74 - Average Delay: 44 minutes)

Alaska Airlines
- Flight Number: AS324. (On Time performance: 79 - Average Delay: 14 minutes)

United Airlines
- Flight Number: UA1049. (On Time performance: 75 - Average Delay: 24 minutes)
- Flight Number: UA1490. (On Time performance: 84 - Average Delay: -7 minutes)
- Flight Number: UA1496. (On Time performance: 67 - Average Delay: 19 minutes)
- Flight Number: UA1641. (On Time performance: 74 - Average Delay: 48 minutes)
- Flight Number: UA2192. (On Time performance: 61 - Average Delay: 17 minutes)
- Flight Number: UA2293. (On Time performance: 92 - Average Delay: 4 minutes)
- Flight Number: UA2294. (On Time performance: 92 - Average Delay: -4 minutes)

Punctuality and delays

It is not possible to calculate the On-Time Performance for this flight accurately due to insufficient or non-representative data, as doing so could lead to misleading conclusions.

Delays analyzed by Week: It is not possible to calculate the On-Time Performance for this flight accurately by weekday due to insufficient or non-representative data, as doing so could lead to misleading conclusions
Delays analyzed by Month: We have gathered available data from last twelve closed months, spanning from May 14, 2025 to February 28, 2026. Next, you can observe the results broken down by month: number of flights analyzed, on-time performance per month, and average delay per month.

Note: We have excluded some months from the graph, since the quantity and quality of the data is not representative enough.

Last Past Flights UA8155

Date
Departure
Arrival
Duration
Aircraft
Status
Monday
06 April
07:27 pm
Portland (PDX)
12:41 am
Chicago (ORD)
03h 14min
Boeing 737-800
Boeing 737-800
Landed - Delayed
Friday
03 April
02:12 pm
Cedar Rapids (CID)
02:47 pm
Chicago (ORD)
22h 35min
Airbus A321neo
Airbus A321neo
Landed - Delayed