Air Mobility Command (AMC) is responsible for the movement of equipment and personnel for the USAF. With Travis being the Gateway to the Pacific, it gets a lot of AMC traffic as well as other traffic transiting between the Continental US and the Pacific. AMC flights will use the callsign REACH (RCH).
Out-of-town C-5's come through on AMC missions. You have a 33% chance of seeing an out-of-town C-5 on any given weekday.
C-17's on AMC missions come through quite often. March ARB and McChord AFB C-17's come through quite often for either training sorties or AMC missions. On average, you can expect 1.4 out-of-town C-17's to come through on any given weekday.
March Callsign: SLAM
McChord Callsigns: COHO, JAVA, SONIC, SOUND, THUG
C-130's tend to stop overnight when transiting to/from Hawaii. Moffett based HC-130J's also come through fairly often to have maintanance done on them. Based on historical data, you have a 30% chance of seeing a C-130.
Of note, LC-130's like to use Travis as a fuel stop when flying to/from Hawaii. These are the C-130's with skis!
E-3's are pretty rare at Travis. They come through roughly once or twice a year. Usually they're just transiting to/from Hawaii or Alaska.
With KC-10's being a dying breed, McGuire KC-10's (the only other base with KC-10's) are increasingly rare to see at Travis. Get them while you can!
KC-46's are becoming more common at Travis. Note that the only KC-46's with unit markings are the New Hampshire Air National Guard KC-46's. As of the end of 2022, you have roughly a 25% chance of seeing a KC-46, but those odds go up as more units convert to KC-46.
KC-135's are still quite common at Travis. You have a 75% chance of seeing a KC-135 on any given weekday. KC-135's from Beale AFB (pictured to the left), Fairchild AFB, and March ARB are the most common.
Beale Callsign: TAHOE
March Callsign: BAJA, RATS
P-8's are relatively rare at Travis. They'll drop through a few times a year for pattern work. More often, they'll come through for a quick fuel stop.
T-38's are based out of Beale AFB just 1.5 hours drive north of Travis.
How Often: You can roughly expect 1.4 T-38's to come through on any given weekday.
When: Beale T-38's go up in 3 banks: 1) 8 - 9AM, 11AM - 12PM, and 1PM - 2PM. They will drop through during any of those banks
Callsigns: ASPEN, ONYX, RECCE, ROPER, SLATE
Foreign military is also fairly common at Travis. The Royal Australian Air Force is the most common foreign military to use Travis with their C-17's. I also have seen Australian MRTT's and F-35's; British A400's and C-17's; Canadian C-130's; French KC-135's, MRTT's, A400's, and Rafales; German A400's; Japanese C-130's; Korean C-130's; and Thai C-130's come through Travis. You have roughly a 20% chance of seeing foreign military at Travis, with the Royal Australian Air Force being the most common right now.
Historical data is generated from a dataset over many weeks. Data was logged between 7AM and 6PM. Odds above 100% for seeing a certain plane are shown as you can expect 1.x, 2.x, or 3.x planes to fly on any given day. This simply means that on average 1.x, 2.x, or 3.x of those planes fly everyday.
For example, you can roughly expect 1.6's Travis C-17's to fly on any given day. This can be interpreted as on any given weekday, 1 Travis C-17 will fly and on a majority of days, a second Travis C-17 will fly.
It is important to understand that the historical data gives statistics that can help predict when planes are likely to fly, however they do not say when planes will fly.