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WBU to SQL: distance & flight time
Boulder (Boulder Municipal Airport) → San Carlos (San Carlos Airport)
932 mi
1,500 km · 810 nm
2h 30m
estimated nonstop flight time
-1h
time difference · heading west
See live WBU→SQL fares Phone-only fares on this route — call free
Flight time details
932 miles nonstop takes roughly 2h 30m gate to gate, flying west. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 1-hour time set-back when reading arrival times on your ticket.
The two airports
- WBU — Boulder Municipal Airport · Boulder, United States
- SQL — San Carlos Airport · San Carlos, United States
Distances are great-circle ("as the crow flies") — the same basis airlines use for frequent-flyer miles.
Alternate airports can cut this fare
Flying from or into a nearby airport is the #1 trick our agents use to beat online prices. Call and we'll compare every combination on one call.
Near WBU
- DEN · Denver International Airport32 mi away
- BJC · Rocky Mountain Metropolitan Airport11 mi away
- FNL · Northern Colorado Regional Airport31 mi away
- BFK · Buckley Air Force Base34 mi away
Near SQL
- SFO · San Francisco International Airport10 mi away
- PAO · Palo Alto Airport of Santa Clara County8 mi away
- HWD · Hayward Executive Airport12 mi away
- NUQ · Moffett Federal Airfield13 mi away
Frequently asked questions
How far is WBU from SQL?
The flight distance from Boulder (WBU) to San Carlos (SQL) is 932 miles (1,500 km, 810 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from WBU to SQL?
A nonstop flight takes about 2h 30m gate to gate. Actual time varies with winds, routing and season — eastbound transatlantic flights, for example, are usually faster than the return.
Are there nonstop flights from WBU to SQL?
Nonstop service on WBU–SQL depends on the season and the day of week. Run the fare search on this page with the nonstop filter applied to see current direct options; when there is no nonstop, a single connection through a carrier hub adds roughly 2–4 hours to the 2h 30m nonstop estimate.
What is the time difference between Boulder and San Carlos?
San Carlos is 1 hour behind Boulder.
What is the cheapest way to fly from WBU to SQL?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on WBU–SQL that never appear on search engines, with no booking fees.
Why are some WBU to SQL fares phone-only?
Consolidator contracts let us sell certain WBU–SQL tickets below the price airlines permit us to publish online, so those fares can only be quoted over the phone. Call the travel desk and an agent will check phone-only inventory for your dates.