San Francisco Airport Informational Guide to San Francisco Airport (SFO) - NON OFFICIAL

UA1634 United Airlines - Flight Status

Below, you can find details about United Airlines flight UA1634, which currently operates between the airports of Chicago - O'Hare International Airport (Airport Code ORD) and San Francisco - San Francisco International Airport (Airport Code SFO).
This flight data pertains specifically to the flight's details for Wednesday, May 01, 2024.

UA1634 On Time performance:
We have calculated the percentage of flights that arrived within 15 minutes of their scheduled time, or earlier, based on real flight data from the last 3 months. More about punctuality and delays

Flight Status

UA1634 United Airlines from Chicago

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


Chicago (ORD)
May 01, 2024
O'Hare International Airport


San Francisco (SFO)
May 01, 2024
San Francisco International Airport
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. 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:

- AC3958 - Air Canada

- LH9178 - Lufthansa

- NZ9328 - Air New Zealand

- VA8095 - Virgin Australia

Additional Information

Which is the frequency of flight UA1634?
The flight UA1634 is scheduled to flight on Monday, Tuesday, Wednesday, Friday, Saturday, Sunday on a weekly basis.

Which is the distance of flight UA1634?
The distance between the two airports is 1843 miles.

Which is the flight time of flight UA1634?
The scheduled flight time gate to gate is: 04:50 hours.
The real flight time gate to gate on average is: 04:49 hours.

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 Chicago: 2024-05-25 22:42:14
Current Time in San Francisco: 2024-05-25 20:42:14

Alternative Flights

The following airlines serves the same route between Chicago and San Francisco:

American Airlines
- Flight Number: AA2113. (On Time performance: 18 - Average Delay: 43 minutes)
- Flight Number: AA2122. (On Time performance: 46 - Average Delay: 25 minutes)
- Flight Number: AA2639. (On Time performance: 28 - Average Delay: 60 minutes)
- Flight Number: AA606. (On Time performance: 50 - Average Delay: 107 minutes)

Alaska Airlines
- Flight Number: AS457. (On Time performance: 85 - Average Delay: 12 minutes)
- Flight Number: AS597. (On Time performance: 42 - Average Delay: 33 minutes)

United Airlines
- Flight Number: UA1286. (On Time performance: 48 - Average Delay: 48 minutes)
- Flight Number: UA1755. (On Time performance: 64 - Average Delay: 24 minutes)
- Flight Number: UA1878. (On Time performance: 54 - Average Delay: 23 minutes)
- Flight Number: UA2171. (On Time performance: 84 - Average Delay: 7 minutes)
- Flight Number: UA2211. (On Time performance: 78 - Average Delay: 22 minutes)
- Flight Number: UA2362. (On Time performance: 39 - Average Delay: 39 minutes)
- Flight Number: UA2640. (On Time performance: 52 - Average Delay: 24 minutes)
- Flight Number: UA300. (On Time performance: 94 - Average Delay: 3 minutes)
- Flight Number: UA301. (On Time performance: 57 - Average Delay: 32 minutes)
- Flight Number: UA305. (On Time performance: 93 - Average Delay: 1 minutes)
- Flight Number: UA336. (On Time performance: 83 - Average Delay: 8 minutes)
- Flight Number: UA343. (On Time performance: 61 - Average Delay: 27 minutes)
- Flight Number: UA519. (On Time performance: 32 - Average Delay: 63 minutes)

Punctuality and delays

We have gathered data from recent months and present below an analysis of how timely the flights have been.

In terms of On-Time Performance, by analyzing the flight data from the last three months, spanning from April 09, 2024 to May 01, 2024, we have obtained these figures.
Total number of flights: 23
On Time: 15 ( 65 % )
Moderate Delay: 4 ( 17 % )
Significant Delay: 3 ( 13 % )
Major Delay: 1 ( 4 % )
Canceled: 0 ( 0 % )
Diverted: 0 ( 0 % )

Average Delay: 15 minutes.
Delays analyzed by Weekday: We have gathered available data from last six months, spanning from April 09, 2024 to May 01, 2024. Next, you can observe the results broken down by day of the week: number of flights analyzed, on-time performance per day, and average delay per day.

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

Delays analyzed by Month: We have gathered available data from last twelve closed months, spanning from April 09, 2024 to April 30, 2024. Next, you can observe the results broken down by month: number of flights analyzed, on-time performance per month, and average delay per month.

Last Past Flights UA1634

01 May
02:18 pm
Chicago (ORD)
05:23 pm
San Francisco (SFO)
05h 05min
Boeing 737-900
Boeing 737-900
Landed - On-time
30 April
03:20 pm
Chicago (ORD)
06:47 pm
San Francisco (SFO)
05h 27min
Boeing 737-900
Boeing 737-900
Landed - Delayed
29 April
02:15 pm
Chicago (ORD)
05:06 pm
San Francisco (SFO)
04h 51min
Boeing 737-900
Boeing 737-900
Landed - On-time
28 April
02:22 pm
Chicago (ORD)
05:41 pm
San Francisco (SFO)
05h 19min
Boeing 737MAX
Boeing 737MAX
Landed - Delayed
27 April
02:52 pm
Chicago (ORD)
05:17 pm
San Francisco (SFO)
04h 25min
Boeing 737-900
Boeing 737-900
Landed - On-time
26 April
02:46 pm
Chicago (ORD)
05:25 pm
San Francisco (SFO)
04h 39min
Boeing 737-900
Boeing 737-900
Landed - Delayed