--- title: "San Francisco to Carlsbad flights: who flies SFO-CLD" description: "United Airlines flies San Francisco (SFO) to Carlsbad (CLD) nonstop about 14 times a week, scheduled at 1h 47m to 1h 50m. See the full timetable and who flies it on 2LNR." canonical: "https://2lnr.com/routes/sfo-cld" url: "https://2lnr.com/routes/sfo-cld.md" date_modified: "2026-10-18T05:10:47Z" --- # San Francisco to Carlsbad (SFO-CLD): nonstop flights and who flies them United Airlines flies nonstop between San Francisco (SFO) and Carlsbad (CLD), roughly 14 times a week. In the timetable below it flies as UA 5508 and UA 5510, scheduled at 1h 47m to 1h 50m for the 423 miles. Schedule last confirmed October 18, 2026. Departure times come from 2LNR's schedule data; confirm with the airline before you book. Updated October 22, 2026. See SFO to CLD on the interactive map [Get started free](https://2lnr.com/login) 14 Flights a week, 4-week average 1h 47m to 1h 50m Scheduled flight time 423 mi Nonstop distance Free To get started ## San Francisco to Carlsbad flight schedule Scheduled nonstop departures for SFO to CLD starting October 22, 2026, last checked against our schedule feed on October 18, 2026. Airlines retime and cancel flights, so confirm with the airline before you book. Scheduled nonstop departures from San Francisco (SFO) to Carlsbad (CLD) | Date | Flight | Airline | Departs SFO | Arrives CLD | Duration | Aircraft | | :--- | :--- | :--- | :--- | :--- | :--- | :--- | | Thu, Oct 22 | UA 5510 | United Airlines | 10:20 | 12:07 | 1h 47m | [Embraer E175](https://2lnr.com/seatmaps/ua/e175.md) | | Thu, Oct 22 | UA 5508 | United Airlines | 19:10 | 21:00 | 1h 50m | Embraer E175 | | Fri, Oct 23 | UA 5510 | United Airlines | 10:20 | 12:07 | 1h 47m | Embraer E175 | | Fri, Oct 23 | UA 5508 | United Airlines | 19:10 | 21:00 | 1h 50m | Embraer E175 | | Sat, Oct 24 | UA 5510 | United Airlines | 10:20 | 12:07 | 1h 47m | Embraer E175 | | Sat, Oct 24 | UA 5508 | United Airlines | 18:55 | 20:45 | 1h 50m | Embraer E175 | | Sun, Oct 25 | UA 5510 | United Airlines | 10:20 | 12:07 | 1h 47m | Embraer E175 | | Sun, Oct 25 | UA 5508 | United Airlines | 18:55 | 20:45 | 1h 50m | Embraer E175 | | Mon, Oct 26 | UA 5510 | United Airlines | 10:20 | 12:07 | 1h 47m | Embraer E175 | | Mon, Oct 26 | UA 5508 | United Airlines | 18:55 | 20:45 | 1h 50m | Embraer E175 | | Tue, Oct 27 | UA 5510 | United Airlines | 10:20 | 12:07 | 1h 47m | Embraer E175 | | Tue, Oct 27 | UA 5508 | United Airlines | 18:45 | 20:35 | 1h 50m | Embraer E175 | | Wed, Oct 28 | UA 5510 | United Airlines | 10:20 | 12:07 | 1h 47m | Embraer E175 | | Wed, Oct 28 | UA 5508 | United Airlines | 18:45 | 20:35 | 1h 50m | Embraer E175 | Showing all 14 scheduled SFO to CLD departures across 7 days with service, starting October 22, 2026. Later dates are on the interactive map. Departure and arrival times are local at their own airport, so an arrival can fall on a different local date than the departure; the duration column is the true elapsed flying time. A dash means the airline hasn't filed that value in the schedule data we hold. Aircraft are the equipment the airline filed, named where the code pins down one type and shown as the family or the bare code where it doesn't. Swaps can happen up to departure. See every SFO to CLD date on the interactive map ## Aircraft on the San Francisco to Carlsbad nonstop United Airlines flies the [Embraer E175](https://2lnr.com/seatmaps/ua/e175.md) on every departure in the schedule table on this page. Each linked aircraft page shows where that airline schedules it. Airlines can swap aircraft up to departure. ## The full SFO to CLD nonstop schedule This page carries the full SFO to CLD nonstop schedule, who operates each departure and how often it runs; the reverse direction is linked below. ### See the schedule Who operates each SFO to CLD nonstop and how often it runs, from 2LNR's schedule data. ### Plan on the map See SFO to CLD on the interactive route map, with schedules, connections, and route statistics. ## Airlines flying San Francisco to Carlsbad nonstop Carriers operating SFO to CLD nonstop in the current schedule. - [United Airlines (UA) route map](https://2lnr.com/routes/airlines/ua.md)\ [The aircraft UA flies](https://2lnr.com/seatmaps/ua.md) See SFO to CLD on the interactive map → ## Frequently asked questions about SFO to CLD **How long is the flight from San Francisco (SFO) to Carlsbad (CLD)?** Scheduled flight times from San Francisco (SFO) to Carlsbad (CLD) run from 1h 47m to 1h 50m across the departures in the schedule table on this page. The nonstop covers about 423 miles, and airlines adjust scheduled times by season, so confirm with the airline before you book. **Which airlines fly nonstop from SFO to CLD?** United Airlines is currently the only airline flying SFO to CLD nonstop. 2LNR doesn't show award or upgrade space for it on SFO to CLD, so this page carries the schedule rather than a space claim. **How many flights a week are there from SFO to CLD?** About 14 nonstop flights a week run between San Francisco (SFO) and Carlsbad (CLD) in the current schedule, operated by United Airlines. Frequency shifts by season, and the schedule table on this page shows what is scheduled next. **What time do flights from SFO to CLD depart?** Scheduled SFO to CLD nonstops in the next 7 days with service leave between 10:20 and 19:10, local time at San Francisco. The schedule table on this page lists every departure by date, with its arrival time and aircraft. **Which flights operate SFO to CLD nonstop?** In the schedule table on this page, SFO to CLD nonstops fly as UA 5508 and UA 5510 on United Airlines. The table lists each departure by date with its times and aircraft. **Does 2LNR show upgrade or award space on SFO to CLD?** Not on this route: 2LNR doesn't show award or upgrade space for United Airlines on SFO to CLD. The page carries the full SFO to CLD nonstop schedule and who flies each departure, and the reverse direction is linked below. Flying the other way? See [CLD to SFO nonstop flights](https://2lnr.com/routes/cld-sfo.md). Award seats rather than schedules? See [award availability by airline](https://2lnr.com/awards.md). Looking beyond this route? See [every route from San Francisco (SFO)](https://2lnr.com/routes/sfo.md), or [every route from Carlsbad (CLD)](https://2lnr.com/routes/cld.md). Nonstops to Carlsbad (CLD) from other airports within 150 miles of San Francisco (SFO): - [Oakland (OAK) to Carlsbad (CLD)](https://2lnr.com/routes/oak-cld.md), 11 miles from SFO Nonstops from San Francisco (SFO) to other airports within 150 miles of Carlsbad (CLD): - [San Francisco (SFO) to San Diego (SAN)](https://2lnr.com/routes/sfo-san.md), 28 miles from CLD - [San Francisco (SFO) to Santa Ana (SNA)](https://2lnr.com/routes/sfo-sna.md), 51 miles from CLD - [San Francisco (SFO) to Palm Springs (PSP)](https://2lnr.com/routes/sfo-psp.md), 66 miles from CLD - [San Francisco (SFO) to Ontario (ONT)](https://2lnr.com/routes/sfo-ont.md), 67 miles from CLD - [San Francisco (SFO) to Los Angeles (LAX)](https://2lnr.com/routes/sfo-lax.md), 86 miles from CLD Distances are great-circle between the airports, not driving distance. - [How to plan an upgrade by route](https://2lnr.com/guides/upgrade-strategy.md) ## See the full SFO to CLD nonstop schedule Every scheduled departure on this route, with who flies it. 2LNR shows upgrade and award space by date on the carriers it tracks, the next 14 days free on every product and the full horizon on Pro. 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