Oakland San Francisco Bay Airport
Oakland, United StatesOAK / KOAK
Major airport · 61 direct destinations · 4 runways · longest runway 10,518 ft
68 °F · ClearSource: METAR observation via the NOAA Aviation Weather Center
Route
Oakland → Chicago
OAK
OaklandOakland San Francisco Bay Airport
OaklandOakland San Francisco Bay AirportRFDChicagoChicago Rockford International Airport
ChicagoChicago Rockford International Airport- Distance
- 1,770 mi
- Estimated flight time
- ~4h 5m
Chicago is currently 2 hours ahead of Oakland.
Observed nonstop
How often does this route fly?
Frequency
Daily at most
On average around 1 flights a day, observed from October 2025 to September 2026.
- 1
- flights per day
- 2
- busiest month · Dec
- 1
- quietest month · Oct
- 3 hr 18 min
- measured flight time
- 11 / 12
- months seen
Through the year
Per day, month by month
- 1Jan2026
- 1Feb
- 1Mar
- 1Apr
- 1May
- 1Jun
- 1Jul
- –Aug
- 1Sep
- 1Oct2025
- 1Nov
- 2Dec
In August 2026 we do not see this direction because of limited reception; the opposite direction is seen.
Airlines
Who flies it
UPS Airlinesall year
Through the day
Departure times
Local time in Oakland. Most departures between 18:00 and 21:00.
- 00:00
- 01:00
- 02:00
- 03:00
- 04:00
- 05:00
- 06:00
- 07:00
- 08:00
- 09:00
- 10:00
- 11:00
- 12:00
- 13:00
- 14:00
- 15:00
- 16:00
- 17:00
- 18:00
- 19:00
- 20:00
- 21:00
- 22:00
- 23:00
Through the week
By weekday
- 0Mon
- 0.8Tue
- 0.8Wed
- 0.7Thu
- 0.6Fri
- 0Sat
- 0Sun
Fleet
Aircraft observed
- Boeing 757-200B75241%
- Boeing 767-300B76335%
- Airbus A300-600A30623%
All the numbers in a table
| Month | Per day | Seen | Airlines |
|---|---|---|---|
| January 2026 | 1 | 13 |
|
| February 2026 | 1 | 15 |
|
| March 2026 | 1 | 14 |
|
| April 2026 | 1 | 15 |
|
| May 2026 | 1 | 12 |
|
| June 2026 | 1 | 17 |
|
| July 2026 | 1 | 7 |
|
| August 2026 | We do not see this direction because of limited reception; the opposite direction is seen. | ||
| September 2026 | 1 | 8 |
|
| October 2025 | 1 | 13 |
|
| November 2025 | 1 | 12 |
|
| December 2025 | 2 | 29 |
|
Airlines observed on this route
From observed callsign routes on OAK-RFD - not a booking guarantee.
About this route
- Domestic route: both airports are in the same country.
- The opposite direction has also been observed as a direct connection.
- Direct destinations observed from Oakland: 61.
- Direct destinations observed from Chicago: 61.
The airports on this route
Chicago Rockford International Airport
Chicago, United StatesRFD / KRFD
Regional airport · 61 direct destinations · 2 runways · longest runway 10,003 ft
53 °F · CloudySource: METAR observation via the NOAA Aviation Weather Center
Alternative airports for this journey
Same journey, a different airport nearby - with an observed direct connection.
About the route from Oakland to Chicago
The observed direct connection between Oakland San Francisco Bay Airport (OAK) and Chicago Rockford International Airport (RFD) covers approximately 1,770 mi. The estimated flight time is around 4h 5m. UPS Airlines has been observed on this connection in the available route data.
Frequently asked questions about this route
- How far is Oakland from Chicago by air?
- The great-circle distance between Oakland San Francisco Bay Airport and Chicago Rockford International Airport is approximately 1,770 mi.
- How long is the flight from Oakland to Chicago?
- Based on the distance, the estimated flight time is about 4h 5m. This is an estimate, not a schedule.
- Is there a direct connection from Oakland to Chicago?
- Yes, a direct connection between OAK and RFD has been observed in our route data.
- Which airlines have been observed on this route?
- In the available route data: UPS Airlines.
- How often is there a flight from Oakland to Chicago?
- On average around 1 flights a day, measured over twelve months (October 2025 to September 2026) in the flight archive, with 155 observed flights. Mainly UPS Airlines. That is an observation, not a timetable.
- What is the current time difference between Oakland and Chicago?
- Chicago is currently 2 hours ahead of Oakland.
Where this data comes from
The route data comes from the flight archive (ADS-B, adsb.lol): which connections actually flew over the last twelve full months and who flew them, combined with our own airport, runway, and airline datasets. It is reference data about observed routes - not a current timetable and no claim about bookability.
The frequency and aircraft on this page come from the flight archive (ADS-B, 12 months, October 2025 to September 2026), summarized per route per month. We do not see every flight, so it is a floor, not a count.
Route data updated on October 11, 2026.