$85+ Cheap flights from Detroit (DTT) to San Juan
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/9. Fares are subject to change and may not be available on all flights or dates of travel.
DTT — SJU
Sep 15 — Sep 221
Round-trip
1 adult, Economy
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Find cheap flights from Detroit to San Juan with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheapflights Tip: The best prices from Detroit All airports to San Juan are usually found in April or September, booked 78 days in advance, depart on a Tuesday or Monday and return on a Thursday
Cheap flight deals from Detroit to San Juan
Cheapest
Best
Last-minute
One-way
Cheapest flights from Detroit to San JuanExplore the most affordable flight options available from Detroit to San Juan. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 16, 2026.
Explore the most affordable flight options available from Detroit to San Juan. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 16, 2026.
This CheapOair deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/114:00 pm -
1 stop9h 52m
Sat 9/1911:15 am -
2 stops12h 08m
Deal found 8/14![Multiple Airlines logo]()
$334
This CheapOair deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/44:05 pm -
1 stop6h 23m
Fri 12/113:50 am -
1 stop11h 35m
Deal found 8/13![Multiple Airlines logo]()
$335
This Frontier deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/66:42 pm -
1 stop7h 00m
Tue 12/158:00 am -
1 stop13h 15m
Deal found 8/12![Frontier logo]()
$336
This CheapOair deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/233:50 pm -
2 stops18h 16m
Mon 9/282:57 am -
1 stop8h 38m
Deal found 8/13![Multiple Airlines logo]()
$338
This Kiwi.com deal was found by Cheapflights users on 8/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/144:23 pm -
1 stop22h 54m
Mon 9/2111:23 am -
2 stops13h 19m
Deal found 8/15![Frontier logo]()
$339
This Kiwi.com deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/302:02 pm -
1 stop9h 48m
Sat 11/78:24 pm -
2 stops19h 15m
Deal found 8/13![Frontier logo]()
$340
This Kiwi.com deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/286:07 pm -
1 stop8h 08m
Mon 8/317:30 am -
2 stops41h 34m
Deal found 8/11![Frontier logo]()
$343
This CheapOair deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/144:10 pm -
2 stops17h 45m
Sat 10/1712:59 am -
1 stop13h 07m
Deal found 8/13![Multiple Airlines logo]()
$344
This Kiwi.com deal was found by Cheapflights users on 8/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/111:28 am -
1 stop12h 30m
Sat 10/33:08 am -
2 stops16h 54m
Deal found 8/15![Frontier logo]()
$345
This Delta deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/198:42 am -
Nonstop4h 34m
Sat 9/262:30 pm -
Nonstop4h 37m
Deal found 8/12![Delta logo]()
$347
This FlightHub deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/54:05 pm -
1 stop7h 49m
Sat 12/127:43 pm -
1 stop14h 36m
Deal found 8/12![Multiple Airlines logo]()
$348
This FlightHub deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/29:49 am -
1 stop7h 00m
Sun 9/63:10 am -
1 stop29h 44m
Deal found 8/11![Frontier logo]()
$349
Best flights from Detroit to San JuanDiscover carefully curated flight deals from Detroit to San Juan that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 16, 2026.
Discover carefully curated flight deals from Detroit to San Juan that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 16, 2026.
This Delta deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/58:40 am -
Nonstop4h 36m
Sat 9/122:50 pm -
1 stop10h 03m
Deal found 8/12![Delta logo]()
$352
This Southwest deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/289:00 am -
2 stops11h 30m
Wed 11/46:10 am -
2 stops10h 05m
Deal found 8/11![Southwest logo]()
$366
This United Airlines deal was found by Cheapflights users on 8/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/1512:35 pm -
2 stops11h 15m
Tue 9/221:00 am -
2 stops14h 29m
Deal found 8/15![United Airlines logo]()
$466
This Southwest deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/41:35 pm -
2 stops9h 35m
Wed 9/95:15 am -
2 stops9h 45m
Deal found 8/14![Southwest logo]()
$420
This Delta deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 1/278:40 am -
Nonstop4h 25m
Thu 2/42:15 pm -
1 stop8h 27m
Deal found 8/14![Delta logo]()
$460
This Delta deal was found by Cheapflights users on 8/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 1/118:40 am -
Nonstop4h 25m
Wed 1/272:15 pm -
1 stop11h 29m
Deal found 8/15![Delta logo]()
$460
This Southwest deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 1/2111:20 am -
1 stop6h 25m
Sat 1/306:10 am -
1 stop7h 25m
Deal found 8/14![Southwest logo]()
$466
This Delta deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/68:36 am -
Nonstop4h 24m
Tue 12/156:35 pm -
1 stop7h 22m
Deal found 8/13![Delta logo]()
$460
This United Airlines deal was found by Cheapflights users on 8/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/2810:25 am -
2 stops13h 25m
Tue 9/291:00 am -
2 stops12h 09m
Deal found 8/15![United Airlines logo]()
$571
This Delta deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 1/249:30 am -
1 stop6h 50m
Wed 1/273:55 pm -
1 stop8h 52m
Deal found 8/12![Delta logo]()
$464
This Southwest deal was found by Cheapflights users on 8/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/152:45 pm -
2 stops9h 35m
Sun 10/185:00 am -
2 stops10h 15m
Deal found 8/15![Southwest logo]()
$511
This Delta deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/179:25 am -
1 stop7h 23m
Sat 10/242:00 pm -
Nonstop4h 42m
Deal found 8/13![Delta logo]()
$524
Last-minute flights from Detroit to San JuanDiscover last-minute flight deals from Detroit to San Juan. Data last updated August 16, 2026 and is based on user searches.
Discover last-minute flight deals from Detroit to San Juan. Data last updated August 16, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/286:07 pm -
1 stop8h 08m
Mon 8/317:30 am -
2 stops41h 34m
Deal found 8/11![Frontier logo]()
$343
This CheapOair deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/299:49 am -
1 stop10h 03m
Sat 9/57:00 am -
1 stop8h 20m
Deal found 8/11![Multiple Airlines logo]()
$350
This Frontier deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/15:21 pm -
1 stop8h 54m
Mon 9/73:10 am -
1 stop13h 16m
Deal found 8/13![Frontier logo]()
$336
This FlightHub deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/29:49 am -
1 stop7h 00m
Sun 9/63:10 am -
1 stop29h 44m
Deal found 8/11![Frontier logo]()
$349
This Kiwi.com deal was found by Cheapflights users on 8/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/510:18 am -
1 stop29h 53m
Sat 9/129:30 am -
1 stop25h 13m
Deal found 8/16![Frontier logo]()
$348
This CheapOair deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/114:00 pm -
1 stop9h 52m
Sat 9/1911:15 am -
2 stops12h 08m
Deal found 8/14![Multiple Airlines logo]()
$334
This Kiwi.com deal was found by Cheapflights users on 8/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/144:23 pm -
1 stop22h 54m
Mon 9/2111:23 am -
2 stops13h 19m
Deal found 8/15![Frontier logo]()
$339
This CheapOair deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/1512:34 pm -
1 stop13h 18m
Wed 9/2311:15 am -
2 stops12h 08m
Deal found 8/13![Multiple Airlines logo]()
$344
This American Airlines deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/156:00 am -
2 stops14h 47m
Wed 9/166:00 am -
2 stops11h 30m
Deal found 8/11![American Airlines logo]()
$351
This Delta deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/198:42 am -
Nonstop4h 34m
Sat 9/262:30 pm -
Nonstop4h 37m
Deal found 8/12![Delta logo]()
$347
This Delta deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/198:42 am -
Nonstop4h 34m
Tue 9/225:59 pm -
1 stop6h 55m
Deal found 8/12![Delta logo]()
$352
This CheapOair deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/233:50 pm -
2 stops18h 16m
Mon 9/282:57 am -
1 stop8h 38m
Deal found 8/13![Multiple Airlines logo]()
$338
One-way flights from Detroit to San JuanSearch for one-way flight options from Detroit to San Juan. Find affordable one-way fares based on user searches. Data last updated August 16, 2026.
Search for one-way flight options from Detroit to San Juan. Find affordable one-way fares based on user searches. Data last updated August 16, 2026.
This Kiwi.com deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/911:00 am -
1 stop12h 38m
Deal found 8/11![Frontier logo]()
$85
This Super.com deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/97:00 am -
1 stop8h 19m
Deal found 8/12![Frontier logo]()
$102
This Frontier deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/81:40 pm -
1 stop11h 16m
Deal found 8/12![Frontier logo]()
$103
This Kiwi.com deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/144:29 pm -
1 stop21h 02m
Deal found 8/13![Frontier logo]()
$104
This Kiwi.com deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/154:23 pm -
1 stop22h 54m
Deal found 8/13![Frontier logo]()
$107
This Kiwi.com deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/134:29 pm -
1 stop22h 49m
Deal found 8/13![Frontier logo]()
$108
This Super.com deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/33:10 pm -
1 stop8h 49m
Deal found 8/13![Frontier logo]()
$111
This Super.com deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/104:35 pm -
1 stop9h 18m
Deal found 8/13![Frontier logo]()
$112
This Super.com deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/55:21 pm -
1 stop14h 50m
Deal found 8/14![Frontier logo]()
$113
This Trip.com deal was found by Cheapflights users on 8/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/304:23 pm -
1 stop21h 11m
Deal found 8/16![Frontier logo]()
$115
This Kiwi.com deal was found by Cheapflights users on 8/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/1112:34 pm -
1 stop12h 43m
Deal found 8/15![Frontier logo]()
$116
Find flight deals from Detroit to San Juan
Discover tips and strategies to find the most affordable flight options for your journey from Detroit (DTT) to San Juan (PR1). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated August 16, 2026.
Round-trip from | $334 (CheapOair) |
|---|---|
One-way from | $85 (Kiwi.com) |
Popular in | December |
Cheapest in | April |
Average price | $374 |
Cheapflights Fare Finder
Customize your flight search to find flights from Detroit to San Juan that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated August 16, 2026.
Use the filters below to find and compare flights from Detroit to San Juan that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
DetroitSan Juan
DTW Detroit Metropolitan Wayne County - SJU San Juan Luis Munoz Marin Intl
DTWSJU
Detroit Metropolitan Wayne County
Sat 9/5
8:40 am-1:16 pm
Nonstop4h 36m
San Juan Luis Munoz Marin Intl
Sat 9/12
2:50 pm-12:53 am
1 stop10h 03m
$352
DetroitSan Juan
DTW Detroit Metropolitan Wayne County - SJU San Juan Luis Munoz Marin Intl
DTWSJU
Detroit Metropolitan Wayne County
Wed 10/28
9:00 am-8:30 pm
2 stops11h 30m
San Juan Luis Munoz Marin Intl
Wed 11/4
6:10 am-3:15 pm
2 stops10h 05m
$366
DetroitSan Juan
DTW Detroit Metropolitan Wayne County - SJU San Juan Luis Munoz Marin Intl
DTWSJU
Detroit Metropolitan Wayne County
Fri 9/4
1:35 pm-11:10 pm
2 stops9h 35m
San Juan Luis Munoz Marin Intl
Wed 9/9
5:15 am-3:00 pm
2 stops9h 45m
$420
DetroitSan Juan
DTW Detroit Metropolitan Wayne County - SJU San Juan Luis Munoz Marin Intl
DTWSJU
Detroit Metropolitan Wayne County
Wed 1/27
8:40 am-2:05 pm
Nonstop4h 25m
San Juan Luis Munoz Marin Intl
Thu 2/4
2:15 pm-9:42 pm
1 stop8h 27m
$460
DetroitSan Juan
DTW Detroit Metropolitan Wayne County - SJU San Juan Luis Munoz Marin Intl
DTWSJU
Detroit Metropolitan Wayne County
Mon 1/11
8:40 am-2:05 pm
Nonstop4h 25m
San Juan Luis Munoz Marin Intl
Wed 1/27
2:15 pm-12:44 am
1 stop11h 29m
$460
Quickest round-trip
DetroitSan Juan
DTW Detroit Metropolitan Wayne County - SJU San Juan Luis Munoz Marin Intl
DTWSJU
Detroit Metropolitan Wayne County
Sun 12/6
8:36 am-2:00 pm
Nonstop4h 24m
San Juan Luis Munoz Marin Intl
Tue 12/15
6:35 pm-12:57 am
1 stop7h 22m
$460
DetroitSan Juan
DTW Detroit Metropolitan Wayne County - SJU San Juan Luis Munoz Marin Intl
DTWSJU
Detroit Metropolitan Wayne County
Sun 1/24
9:30 am-5:20 pm
1 stop6h 50m
San Juan Luis Munoz Marin Intl
Wed 1/27
3:55 pm-11:47 pm
1 stop8h 52m
$464
DetroitSan Juan
DTW Detroit Metropolitan Wayne County - SJU San Juan Luis Munoz Marin Intl
DTWSJU
Detroit Metropolitan Wayne County
Tue 9/15
12:35 pm-11:50 pm
2 stops11h 15m
San Juan Luis Munoz Marin Intl
Tue 9/22
1:00 am-3:29 pm
2 stops14h 29m
$466
DetroitSan Juan
DTW Detroit Metropolitan Wayne County - SJU San Juan Luis Munoz Marin Intl
DTWSJU
Detroit Metropolitan Wayne County
Thu 1/21
11:20 am-6:45 pm
1 stop6h 25m
San Juan Luis Munoz Marin Intl
Sat 1/30
6:10 am-12:35 pm
1 stop7h 25m
$466
DetroitSan Juan
DTW Detroit Metropolitan Wayne County - SJU San Juan Luis Munoz Marin Intl
DTWSJU
Detroit Metropolitan Wayne County
Thu 10/15
2:45 pm-12:20 am
2 stops9h 35m
San Juan Luis Munoz Marin Intl
Sun 10/18
5:00 am-3:15 pm
2 stops10h 15m
$511
Showing 1-10 of 24 resultsSorted by cheapest first
Best time to book a flight from Detroit to San Juan
Have a flexible travel schedule? Discover the best time to fly to San Juan from Detroit with our price prediction graph.
DTT-PR1
DTW-SJU
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Detroit to San Juan
DTT-PR1
DTW-SJU
What is the cheapest month to book a flight from Detroit to San Juan?
Currently, October is the cheapest month in which you can book a flight from Detroit to San Juan (average of $331). Flying from Detroit to San Juan in December is currently the most expensive (average of $593). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
What is the cheapest time of day to fly from DTT to SJU?
Find hourly flight availability from Detroit to San Juan. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 16, 2026.
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Detroit to San Juan as you normally would.
How much does it cost to fly round-trip from Detroit to San Juan?
Airfare is below average for this route at the moment.
Detroit to San Juan flights typically cost between $340 and $456 in September.The cheapest round-trip price found within the last 5 days was $334 on Multiple Airlines (Sep 11-Sep 19).
How far ahead should I book a flight from Detroit to San Juan?
Booking 1 days in advance of your planned departure date is, on average, the best time to get cheap flights from Detroit to San Juan. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
Reviews of airlines servicing San Juan
Get insights into the airlines that provide service to San Juan. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to San Juan. Reviews last updated August 16, 2026.
Read through reviews of airlines operating flights from Detroit to San Juan, such as Southwest,Delta, andAmerican Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Overall
8.0
Crew
8.6
Food
7.0
Boarding
8.1
Comfort
8.0
Entertainment
7.5
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Overall
8.0
Crew
8.6
Food
7.0
Boarding
8.1
Comfort
8.0
Entertainment
7.5
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Overall
8.0
Crew
8.6
Food
7.0
Boarding
8.1
Comfort
8.0
Entertainment
7.5
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Overall
8.0
Crew
8.6
Food
7.0
Boarding
8.1
Comfort
8.0
Entertainment
7.5
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Overall
8.0
Crew
8.6
Food
7.0
Boarding
8.1
Comfort
8.0
Entertainment
7.5
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Overall
8.0
Crew
8.6
Food
7.0
Boarding
8.1
Comfort
8.0
Entertainment
7.5
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Related info for your journey
Find useful and relevant information for your journey from Detroit to San Juan. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for Detroit to San Juan
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Complete your trip
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Detroit and San Juan flights
Browse other Detroit and San Juan flight options. Last updated on August 16, 2026.
Other flights from Detroit
Browse through other flights departing from Detroit. Flights are based on user searches made on Cheapflights and were last updated on August 16, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 6 airlines flying from Detroit to San Juan
Discover the top 6 airlines that operate flights from Detroit to San Juan. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated August 16, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$177 | Average$366 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$212 | Average$376 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$237 | Average$622 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$266 | Average$545 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$324 | Average$609 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$395 | Average$503 | FlexibilityNo cancel fee | On-time63% |