--- title: "Cancun to San Francisco flights: who flies CUN-SFO" description: "Alaska Airlines and United Airlines fly nonstop from CUN to SFO, about 14 flights a week. See confirmed upgrade and award space by date on 2LNR, the next 14 days free." canonical: "https://2lnr.com/routes/cun-sfo" url: "https://2lnr.com/routes/cun-sfo.md" date_modified: "2026-10-18T05:10:47Z" --- # Cancun to San Francisco (CUN-SFO): nonstop upgrade & award space United Airlines and Alaska Airlines fly nonstop between Cancun (CUN) and San Francisco (SFO), roughly 14 times a week. The timetable below shows the nonstop scheduled at 5h 43m to 6h 7m for the 2,406 miles. 2LNR checks confirmed upgrade and award space on Alaska Airlines flights on this route, so you can see which departures have space before you book. 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 CUN to SFO on the interactive map [Get started free](https://2lnr.com/login) 14 Flights a week, 4-week average 5h 43m to 6h 7m Scheduled flight time 2,406 mi Nonstop distance Free To get started ## Cancun to San Francisco flight schedule Scheduled nonstop departures for CUN to SFO starting October 21, 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 Cancun (CUN) to San Francisco (SFO) | Date | Flight | Airline | Departs CUN | Arrives SFO | Duration | Aircraft | | :--- | :--- | :--- | :--- | :--- | :--- | :--- | | Wed, Oct 21 | UA 1948 | United Airlines | 12:57 | 16:40 | 5h 43m | [Boeing 737 MAX 9](https://2lnr.com/seatmaps/ua/737-max-9.md) | | Thu, Oct 22 | UA 1948 | United Airlines | 12:57 | 16:40 | 5h 43m | Boeing 737 MAX 9 | | Fri, Oct 23 | UA 1948 | United Airlines | 12:57 | 16:40 | 5h 43m | Boeing 737 MAX 9 | | Sat, Oct 24 | UA 1948 | United Airlines | 12:57 | 16:40 | 5h 43m | Boeing 737 MAX 9 | | Sun, Oct 25 | UA 1948 | United Airlines | 12:45 | 16:52 | 6h 7m | Boeing 737 MAX 9 | | Sun, Oct 25 | UA 1118 | United Airlines | 17:01 | 20:49 | 5h 48m | Boeing 737 MAX 9 | | Mon, Oct 26 | UA 1948 | United Airlines | 12:45 | 16:52 | 6h 7m | Boeing 737 MAX 9 | | Mon, Oct 26 | UA 1118 | United Airlines | 17:01 | 20:49 | 5h 48m | Boeing 737 MAX 9 | | Tue, Oct 27 | UA 1948 | United Airlines | 12:45 | 16:52 | 6h 7m | Boeing 737 MAX 9 | | Tue, Oct 27 | UA 1118 | United Airlines | 17:01 | 20:49 | 5h 48m | Boeing 737 MAX 9 | Showing all 10 scheduled CUN to SFO departures across 7 days with service, starting October 21, 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 CUN to SFO date on the interactive map ## Aircraft on the Cancun to San Francisco nonstop United Airlines flies the [Boeing 737 MAX 9](https://2lnr.com/seatmaps/ua/737-max-9.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. ## Confirmed upgrade & award space on CUN to SFO departures 2LNR tracks confirmed upgrade and award space on Alaska Airlines, segment by segment and date by date. Open the calendar for Cancun to San Francisco to see which departures have space, the next 14 days free on every product and the full horizon on Pro. ### See real availability Confirmed upgrade or award seats by date on the CUN to SFO departures 2LNR tracks, checked against live inventory so you know what's open before you book. ### Set an alert Premium inventory turns over fast. Watch this route on Pro and 2LNR notifies you when space appears on a date you're tracking. ### Plan on the map See CUN to SFO on the interactive route map, with schedules, connections, and route statistics. ## Airlines flying Cancun to San Francisco nonstop Carriers operating CUN to SFO nonstop in the current schedule. Where 2LNR tracks the carrier, its departures show confirmed upgrade or award space by date. - [United Airlines (UA) route map](https://2lnr.com/routes/airlines/ua.md)\ [The aircraft UA flies](https://2lnr.com/seatmaps/ua.md) - [Alaska Airlines (AS) route map](https://2lnr.com/routes/airlines/as.md)\ [The aircraft AS flies](https://2lnr.com/seatmaps/as.md) See CUN to SFO on the interactive map → ## Frequently asked questions about CUN to SFO **How long is the flight from Cancun (CUN) to San Francisco (SFO)?** Scheduled flight times from Cancun (CUN) to San Francisco (SFO) run from 5h 43m to 6h 7m across the departures in the schedule table on this page. The nonstop covers about 2,406 miles, and airlines adjust scheduled times by season, so confirm with the airline before you book. **Which airlines fly nonstop from CUN to SFO?** United Airlines and Alaska Airlines fly CUN to SFO nonstop. 2LNR tracks confirmed upgrade and award space on Alaska Airlines. **How many flights a week are there from CUN to SFO?** About 14 nonstop flights a week run between Cancun (CUN) and San Francisco (SFO) in the current schedule, operated by United Airlines and Alaska Airlines. Frequency shifts by season, and the schedule table on this page shows what is scheduled next. **What time do flights from CUN to SFO depart?** Scheduled CUN to SFO nonstops in the next 7 days with service leave between 12:45 and 17:01, local time at Cancun. The schedule table on this page lists every departure by date, with its arrival time and aircraft. **Which flights operate CUN to SFO nonstop?** In the schedule table on this page, CUN to SFO nonstops fly as UA 1118 and UA 1948 on United Airlines. The table lists each departure by date with its times and aircraft. **How do I check upgrade or award availability on CUN to SFO?** Open the CUN to SFO route on the interactive map or the matrix to see confirmed upgrade and award space by date on Alaska Airlines, the next 14 days free and the full horizon on Pro. On Pro you can also set an alert on the route and 2LNR notifies you when space opens. Flying the other way? See [SFO to CUN upgrade and award space](https://2lnr.com/routes/sfo-cun.md). Award seats rather than schedules? See [Alaska Airlines award availability](https://2lnr.com/awards/as.md). Looking beyond this route? See [every route from Cancun (CUN)](https://2lnr.com/routes/cun.md), or [every route from San Francisco (SFO)](https://2lnr.com/routes/sfo.md). - [How Alaska upgrades clear](https://2lnr.com/about/as/upgrades.md) - [How to read award availability by date](https://2lnr.com/guides/award-availability.md) ## Never miss CUN to SFO upgrade or award space See what's open by date on this route, the next 14 days free on every product and the full horizon on Pro. [Get started free](https://2lnr.com/login)