Airport Tips & Quick Reference Guide to John Glenn Columbus Airport (CMH) - Non Official

UA4021 United Airlines - Flight Status

Below, you can find details about United Airlines flight UA4021, which currently operates between the airports of Dulles - Washington Dulles International Airport (Airport Code IAD) and Columbus - John Glenn Columbus International Airport (Airport Code CMH).
This flight data pertains specifically to the flight's details for Tuesday, October 14, 2025.

UA4021 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

UA4021 United Airlines from Dulles

Scheduled - On-time
Flight Status for Tuesday October 14, 2025
This flight is also scheduled for Tomorrow (October 15, 2025). See it here

Airline information

United Airlines
United Airlines
Equipment: Embraer 175 (Enhanced Winglets)

Departure

Dulles (IAD)
October 14, 2025
Washington Dulles International Airport
Estimated Departure Time:
08:22 am
Terminal:
-
Gate:
A2A
Scheduled Departure Time: 08:22 am

Arrival

Columbus (CMH)
October 14, 2025
John Glenn Columbus International Airport
Estimated Arrival Time:
09:44 am
Gate:
B34
Scheduled Arrival Time: 09:44 am
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.columbus-airport.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.

Codeshare Flights

This flight is shared with other airlines, this means that these other flights are the same:

- AC3543 - Air Canada

- AV2051 - Avianca

- CM1270 - Copa Airlines

Additional Information

Which is the frequency of flight UA4021?
The flight UA4021 is scheduled to flight on Tuesday, Wednesday on a weekly basis.

Which is the distance of flight UA4021?
The distance between the two airports is 299 miles.

Are the departure airport and arrival airport at the same Time Zone?
Yes, both airports are in the same timezone.

Alternative Flights

The following airlines serves the same route between Dulles and Columbus:

GTA Air
- Flight Number: GTX321. (On Time performance: 54 - Average Delay: 21 minutes)

United Airlines
- Flight Number: UA1939. (On Time performance: 87 - Average Delay: 9 minutes)
- Flight Number: UA2691. (On Time performance: 87 - Average Delay: 4 minutes)
- Flight Number: UA3495. (On Time performance: 55 - Average Delay: 21 minutes)
- Flight Number: UA3516. (On Time performance: 90 - Average Delay: 4 minutes)
- Flight Number: UA3566. (On Time performance: 57 - Average Delay: 46 minutes)
- Flight Number: UA3646. (On Time performance: 82 - Average Delay: 32 minutes)
- Flight Number: UA604. (On Time performance: 96 - Average Delay: 1 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: It is not possible to calculate the On-Time Performance for this flight accurately by month due to insufficient or non-representative data, as doing so could lead to misleading conclusions

Last Past Flights UA4021

Date
Departure
Arrival
Duration
Aircraft
Status
Wednesday
08 October
08:20 am
Dulles (IAD)
09:32 am
Columbus (CMH)
01h 12min
Embraer 175 (E
Embraer 175 (E
Landed - On-time
Tuesday
07 October
08:17 am
Dulles (IAD)
09:24 am
Columbus (CMH)
01h 07min
Embraer 175 (E
Embraer 175 (E
Landed - On-time
Wednesday
01 October
08:16 am
Dulles (IAD)
09:26 am
Columbus (CMH)
01h 10min
Embraer 175 (E
Embraer 175 (E
Landed - On-time
Tuesday
30 September
08:17 am
Dulles (IAD)
09:26 am
Columbus (CMH)
01h 09min
Embraer 175 (E
Embraer 175 (E
Landed - On-time