--- title: "Detroit (DTW) to San Juan (SJU) flights: who flies it" description: "Delta Air Lines flies nonstop from DTW to SJU, about 7 flights a week, covering 1,932 miles. See confirmed upgrade and award space by date on 2LNR, the next 14 days free." canonical: "https://2lnr.com/routes/dtw-sju" url: "https://2lnr.com/routes/dtw-sju.md" date_modified: "2026-10-18T05:10:47Z" --- # Detroit to San Juan (DTW-SJU): nonstop upgrade & award space Delta Air Lines flies the DTW to SJU nonstop about 7 times a week. In the timetable below it flies as DL 1913, scheduled at 4h 23m to 4h 36m for the 1,932 miles. 2LNR checks confirmed upgrade and award space on Delta Air Lines 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 DTW to SJU on the interactive map [Get started free](https://2lnr.com/login) 7 Flights a week, 4-week average 4h 23m to 4h 36m Scheduled flight time 1,932 mi Nonstop distance Free To get started ## Detroit to San Juan flight schedule Scheduled nonstop departures for DTW to SJU 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 Detroit (DTW) to San Juan (SJU) | Date | Flight | Airline | Departs DTW | Arrives SJU | Duration | Aircraft | | :--- | :--- | :--- | :--- | :--- | :--- | :--- | | Thu, Oct 22 | DL 1913 | Delta Air Lines | 08:40 | 13:16 | 4h 36m | [Boeing 737-900](https://2lnr.com/seatmaps/dl/737-900.md) | | Fri, Oct 23 | DL 1913 | Delta Air Lines | 08:40 | 13:16 | 4h 36m | Boeing 737-900 | | Sat, Oct 24 | DL 1913 | Delta Air Lines | 08:37 | 13:00 | 4h 23m | Boeing 737-900 | | Sun, Oct 25 | DL 1913 | Delta Air Lines | 08:40 | 13:16 | 4h 36m | Boeing 737-900 | | Mon, Oct 26 | DL 1913 | Delta Air Lines | 08:40 | 13:16 | 4h 36m | Boeing 737-900 | | Tue, Oct 27 | DL 1913 | Delta Air Lines | 08:40 | 13:16 | 4h 36m | Boeing 737-900 | | Wed, Oct 28 | DL 1913 | Delta Air Lines | 08:40 | 13:16 | 4h 36m | Boeing 737-900 | Showing all 7 scheduled DTW to SJU 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 DTW to SJU date on the interactive map ## Aircraft on the Detroit to San Juan nonstop Delta Air Lines flies the [Boeing 737-900](https://2lnr.com/seatmaps/dl/737-900.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 DTW to SJU departures 2LNR tracks confirmed upgrade and award space on Delta Air Lines, segment by segment and date by date. Open the calendar for Detroit to San Juan to see which departures have space, the next 14 days free on every product and the full horizon on Pro. Delta Air Lines award space was open on both Detroit to San Juan departure dates from October 19 to November 1 that 2LNR checked in the 7 days to October 19, 2026. ### See real availability Confirmed upgrade or award seats by date on the DTW to SJU 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 DTW to SJU on the interactive route map, with schedules, connections, and route statistics. ## Airlines flying Detroit to San Juan nonstop Carriers operating DTW to SJU nonstop in the current schedule. Where 2LNR tracks the carrier, its departures show confirmed upgrade or award space by date. - [Delta Air Lines (DL) route map](https://2lnr.com/routes/airlines/dl.md)\ [The aircraft DL flies](https://2lnr.com/seatmaps/dl.md) See DTW to SJU on the interactive map → ## Frequently asked questions about DTW to SJU **How long is the flight from Detroit (DTW) to San Juan (SJU)?** Scheduled flight times from Detroit (DTW) to San Juan (SJU) run from 4h 23m to 4h 36m across the departures in the schedule table on this page. The nonstop covers about 1,932 miles, and airlines adjust scheduled times by season, so confirm with the airline before you book. **Which airlines fly nonstop from DTW to SJU?** Delta Air Lines is currently the only airline flying DTW to SJU nonstop. 2LNR tracks confirmed upgrade and award space on Delta Air Lines. **How many flights a week are there from DTW to SJU?** About 7 nonstop flights a week run between Detroit (DTW) and San Juan (SJU) in the current schedule, operated by Delta Air Lines. Frequency shifts by season, and the schedule table on this page shows what is scheduled next. **What time do flights from DTW to SJU depart?** Scheduled DTW to SJU nonstops in the next 7 days with service leave between 08:37 and 08:40, local time at Detroit. The schedule table on this page lists every departure by date, with its arrival time and aircraft. **Which flights operate DTW to SJU nonstop?** Delta Air Lines flies DL 1913 nonstop from Detroit (DTW) to San Juan (SJU), the only flight number in the schedule table on this page. The table lists each date with its departure and arrival times and aircraft. **How do I check upgrade or award availability on DTW to SJU?** Open the DTW to SJU route on the interactive map or the matrix to see confirmed upgrade and award space by date on Delta Air Lines, 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 [SJU to DTW upgrade and award space](https://2lnr.com/routes/sju-dtw.md). Award seats rather than schedules? See [Delta Air Lines award availability](https://2lnr.com/awards/dl.md). Looking beyond this route? See [every route from Detroit (DTW)](https://2lnr.com/routes/dtw.md), or [every route from San Juan (SJU)](https://2lnr.com/routes/sju.md). Nonstops to San Juan (SJU) from other airports within 150 miles of Detroit (DTW): - [Cleveland (CLE) to San Juan (SJU)](https://2lnr.com/routes/cle-sju.md), 95 miles from DTW Distances are great-circle between the airports, not driving distance. - [How Delta upgrades clear](https://2lnr.com/about/dl/upgrades.md) - [How to read award availability by date](https://2lnr.com/guides/award-availability.md) ## Never miss DTW to SJU 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)