$88+ 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 4/27. Fares are subject to change and may not be available on all flights or dates of travel.
DTT — SJU
Apr 26 — May 31
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 August or October, booked 33 days in advance, depart on a Monday or Sunday and return on a Sunday
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 March 27, 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 March 27, 2026.
This CheapOair deal was found by Cheapflights users on 3/25. 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 4/2511:26 am
DTW
- SJU
1 stop11h 22m
Frontier
Thu 4/304:14 pm
SJU
- DTW
1 stop29h 07m
Frontier
Deal found 3/25![Frontier logo]()
$213
This Frontier deal was found by Cheapflights users on 3/23. 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 3/315:12 pm
DTW
- SJU
1 stop7h 45m
Frontier
Tue 5/55:15 pm
SJU
- DTW
1 stop7h 44m
Frontier
Deal found 3/23![Frontier logo]()
$215
This Frontier deal was found by Cheapflights users on 3/23. 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.
Thu 4/23:07 pm
DTW
- SJU
1 stop10h 54m
Frontier
Tue 5/53:03 am
SJU
- DTW
1 stop8h 57m
Frontier
Deal found 3/23![Frontier logo]()
$216
This Expedia deal was found by Cheapflights users on 3/25. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/2112:55 pm
DTW
- SJU
1 stop11h 46m
Frontier
Mon 5/256:09 pm
SJU
- DTW
1 stop17h 51m
Frontier
Deal found 3/25![Frontier logo]()
$221
This Priceline deal was found by Cheapflights users on 3/23. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/87:41 pm
DTW
- SJU
1 stop12h 15m
Frontier
Sat 4/113:21 am
SJU
- DTW
1 stop29h 38m
Frontier
Deal found 3/23![Frontier logo]()
$222
This CheapOair deal was found by Cheapflights users on 3/27. 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.
Thu 6/412:55 pm
DTW
- SJU
1 stop11h 46m
Frontier
Mon 6/86:09 pm
SJU
- DTW
1 stop17h 38m
Frontier
Deal found 3/27![Frontier logo]()
$223
This Frontier deal was found by Cheapflights users on 3/23. 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 3/315:12 pm
DTW
- SJU
1 stop7h 45m
Frontier
Thu 5/75:15 pm
SJU
- DTW
1 stop7h 24m
Frontier
Deal found 3/23![Frontier logo]()
$225
This Frontier deal was found by Cheapflights users on 3/22. 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.
Mon 4/68:01 pm
DTW
- SJU
1 stop13h 17m
Frontier
Fri 4/177:15 am
SJU
- DTW
1 stop13h 56m
Frontier
Deal found 3/22![Frontier logo]()
$226
This Trip.com deal was found by Cheapflights users on 3/22. 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.
Sun 4/56:59 pm
DTW
- SJU
1 stop29h 00m
Frontier
Tue 4/73:16 am
SJU
- DTW
1 stop7h 30m
Frontier
Deal found 3/22![Frontier logo]()
$227
This Kiwi.com deal was found by Cheapflights users on 3/25. 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 4/18:15 am
DTW
- SJU
1 stop10h 40m
Multiple Airlines
Thu 4/97:54 pm
SJU
- DTW
1 stop28h 45m
Multiple Airlines
Deal found 3/25![Multiple Airlines logo]()
$228
This Expedia deal was found by Cheapflights users on 3/26. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/2312:44 pm
DTW
- SJU
1 stop19h 20m
Frontier
Fri 5/294:45 pm
SJU
- DTW
1 stop25h 27m
Frontier
Deal found 3/26![Frontier logo]()
$229
This CheapOair deal was found by Cheapflights users on 3/25. 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.
Thu 5/712:44 pm
DTW
- SJU
1 stop13h 24m
Frontier
Mon 5/183:35 pm
SJU
- DTW
1 stop20h 14m
Frontier
Deal found 3/25![Frontier logo]()
$230
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 March 27, 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 March 27, 2026.
This Southwest deal was found by Cheapflights users on 3/24. 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.
Tue 7/73:50 pm
DTW
- SJU
2 stops8h 25m
Southwest
Sun 7/125:00 am
SJU
- DTW
2 stops9h 00m
Southwest
Deal found 3/24![Southwest logo]()
$420
This Delta deal was found by Cheapflights users on 3/25. 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 7/268:25 am
DTW
- SJU
Nonstop4h 30m
Delta
Fri 7/312:05 pm
SJU
- DTW
Nonstop4h 39m
Delta
Deal found 3/25![Delta logo]()
$457
This Delta deal was found by Cheapflights users on 3/23. 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.
Tue 6/308:25 am
DTW
- SJU
Nonstop4h 29m
Delta
Tue 7/72:05 pm
SJU
- DTW
Nonstop4h 39m
Delta
Deal found 3/23![Delta logo]()
$457
This Southwest deal was found by Cheapflights users on 3/22. 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 5/294:00 pm
DTW
- SJU
2 stops7h 55m
Southwest
Mon 6/12:00 pm
SJU
- DTW
2 stops9h 30m
Southwest
Deal found 3/22![Southwest logo]()
$501
This Delta deal was found by Cheapflights users on 3/22. 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 8/98:25 am
DTW
- SJU
Nonstop4h 30m
Delta
Sat 8/152:30 pm
SJU
- DTW
Nonstop4h 35m
Delta
Deal found 3/22![Delta logo]()
$482
This Southwest deal was found by Cheapflights users on 3/25. 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 7/210:45 am
DTW
- SJU
2 stops8h 40m
Southwest
Tue 7/71:30 pm
SJU
- DTW
2 stops9h 20m
Southwest
Deal found 3/25![Southwest logo]()
$551
This Delta deal was found by Cheapflights users on 3/27. 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 6/88:25 am
DTW
- SJU
Nonstop4h 29m
Delta
Fri 6/122:04 pm
SJU
- DTW
Nonstop4h 38m
Delta
Deal found 3/27![Delta logo]()
$507
This Delta deal was found by Cheapflights users on 3/22. 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 6/18:59 am
DTW
- SJU
Nonstop4h 21m
Delta
Mon 6/82:04 pm
SJU
- DTW
Nonstop4h 38m
Delta
Deal found 3/22![Delta logo]()
$532
This Delta deal was found by Cheapflights users on 3/24. 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.
Thu 6/112:58 pm
DTW
- SJU
1 stop7h 29m
Delta
Wed 6/172:04 pm
SJU
- DTW
Nonstop4h 38m
Delta
Deal found 3/24![Delta logo]()
$537
This Delta deal was found by Cheapflights users on 3/26. 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 8/812:25 pm
DTW
- SJU
1 stop8h 20m
Delta
Sat 8/152:30 pm
SJU
- DTW
Nonstop4h 35m
Delta
Deal found 3/26![Delta logo]()
$557
This Delta deal was found by Cheapflights users on 3/23. 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.
Tue 5/58:35 am
DTW
- SJU
Nonstop4h 17m
Delta
Wed 5/132:35 pm
SJU
- DTW
Nonstop4h 40m
Delta
Deal found 3/23![Delta logo]()
$562
Last-minute flights from Detroit to San JuanDiscover last-minute flight deals from Detroit to San Juan. Data last updated March 27, 2026 and is based on user searches.
Discover last-minute flight deals from Detroit to San Juan. Data last updated March 27, 2026 and is based on user searches.
This Frontier deal was found by Cheapflights users on 3/23. 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 3/315:12 pm
DTW
- SJU
1 stop7h 45m
Frontier
Tue 5/55:15 pm
SJU
- DTW
1 stop7h 44m
Frontier
Deal found 3/23![Frontier logo]()
$215
This Frontier deal was found by Cheapflights users on 3/23. 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 3/315:12 pm
DTW
- SJU
1 stop7h 45m
Frontier
Thu 5/75:15 pm
SJU
- DTW
1 stop7h 24m
Frontier
Deal found 3/23![Frontier logo]()
$225
This Kiwi.com deal was found by Cheapflights users on 3/25. 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 4/18:15 am
DTW
- SJU
1 stop10h 40m
Multiple Airlines
Thu 4/97:54 pm
SJU
- DTW
1 stop28h 45m
Multiple Airlines
Deal found 3/25![Multiple Airlines logo]()
$228
This CheapOair deal was found by Cheapflights users on 3/24. 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 4/18:15 am
DTW
- SJU
1 stop10h 40m
Multiple Airlines
Wed 4/86:00 am
SJU
- DTW
1 stop11h 00m
Multiple Airlines
Deal found 3/24![Multiple Airlines logo]()
$229
This Frontier deal was found by Cheapflights users on 3/25. 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.
Wed 4/17:41 pm
DTW
- SJU
1 stop12h 15m
Frontier
Fri 4/109:10 pm
SJU
- DTW
1 stop12h 39m
Frontier
Deal found 3/25![Frontier logo]()
$233
This Frontier deal was found by Cheapflights users on 3/23. 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.
Thu 4/23:07 pm
DTW
- SJU
1 stop10h 54m
Frontier
Tue 5/53:03 am
SJU
- DTW
1 stop8h 57m
Frontier
Deal found 3/23![Frontier logo]()
$216
This Trip.com deal was found by Cheapflights users on 3/22. 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.
Sun 4/56:59 pm
DTW
- SJU
1 stop29h 00m
Frontier
Tue 4/73:16 am
SJU
- DTW
1 stop7h 30m
Frontier
Deal found 3/22![Frontier logo]()
$227
This Frontier deal was found by Cheapflights users on 3/22. 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.
Mon 4/68:01 pm
DTW
- SJU
1 stop13h 17m
Frontier
Fri 4/177:15 am
SJU
- DTW
1 stop13h 56m
Frontier
Deal found 3/22![Frontier logo]()
$226
This Priceline deal was found by Cheapflights users on 3/23. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/87:41 pm
DTW
- SJU
1 stop12h 15m
Frontier
Sat 4/113:21 am
SJU
- DTW
1 stop29h 38m
Frontier
Deal found 3/23![Frontier logo]()
$222
This CheapOair deal was found by Cheapflights users on 3/27. 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.
Thu 4/167:55 am
DTW
- SJU
1 stop16h 04m
Frontier
Mon 4/203:08 am
SJU
- DTW
1 stop10h 17m
Frontier
Deal found 3/27![Frontier logo]()
$223
This CheapOair deal was found by Cheapflights users on 3/26. 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.
Thu 4/167:55 am
DTW
- SJU
1 stop16h 04m
Frontier
Mon 4/2011:07 am
SJU
- DTW
1 stop26h 18m
Frontier
Deal found 3/26![Frontier logo]()
$231
This CheapOair deal was found by Cheapflights users on 3/25. 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 4/2511:26 am
DTW
- SJU
1 stop11h 22m
Frontier
Thu 4/304:14 pm
SJU
- DTW
1 stop29h 07m
Frontier
Deal found 3/25![Frontier logo]()
$213
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 March 27, 2026.
Search for one-way flight options from Detroit to San Juan. Find affordable one-way fares based on user searches. Data last updated March 27, 2026.
This Frontier deal was found by Cheapflights users on 3/27. 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.
Mon 4/272:20 pm
DTW
- SJU
1 stop11h 41m
Frontier
Deal found 3/27![Frontier logo]()
$88
This eDestinos deal was found by Cheapflights users on 3/24. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/77:41 pm
DTW
- SJU
1 stop13h 37m
Frontier
Deal found 3/24![Frontier logo]()
$89
This Super.com deal was found by Cheapflights users on 3/26. 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 4/115:45 am
DTW
- SJU
1 stop13h 10m
Spirit Airlines
Deal found 3/26![Spirit Airlines logo]()
$93
This Travelocity deal was found by Cheapflights users on 3/26. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/110:16 pm
DTW
- SJU
1 stop25h 13m
Frontier
Deal found 3/26![Frontier logo]()
$94
This Frontier deal was found by Cheapflights users on 3/27. 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 4/282:20 pm
DTW
- SJU
1 stop11h 41m
Frontier
Deal found 3/27![Frontier logo]()
$98
This Kiwi.com deal was found by Cheapflights users on 3/25. 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 4/18:15 am
DTW
- SJU
1 stop10h 40m
Spirit Airlines
Deal found 3/25![Spirit Airlines logo]()
$102
This Frontier deal was found by Cheapflights users on 3/27. 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.
Thu 4/231:44 pm
DTW
- SJU
1 stop9h 12m
Frontier
Deal found 3/27![Frontier logo]()
$106
This eDestinos deal was found by Cheapflights users on 3/22. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/315:12 pm
DTW
- SJU
1 stop7h 45m
Frontier
Deal found 3/22![Frontier logo]()
$115
This eDestinos deal was found by Cheapflights users on 3/25. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/34:42 pm
DTW
- SJU
1 stop6h 58m
Frontier
Deal found 3/25![Frontier logo]()
$116
This Kiwi.com deal was found by Cheapflights users on 3/22. 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 3/309:07 pm
DTW
- SJU
1 stop11h 46m
Multiple Airlines
Deal found 3/22![Multiple Airlines logo]()
$117
This Kiwi.com deal was found by Cheapflights users on 3/25. 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 4/248:49 pm
DTW
- SJU
2 stops22h 33m
Multiple Airlines
Deal found 3/25![Multiple Airlines logo]()
$118
This Kiwi.com deal was found by Cheapflights users on 3/24. 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 4/210:24 am
DTW
- SJU
1 stop26h 31m
Frontier
Deal found 3/24![Frontier logo]()
$120
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 March 27, 2026.
Round-trip from | $213 (CheapOair) |
|---|---|
One-way from | $88 (Frontier) |
Popular in | December |
Cheapest in | August |
Average price | $462 |
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 March 27, 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 - SJU
DTWSJU
Detroit Metropolitan Wayne County
Tue 7/7
3:50 pm-12:15 am
2 stops8h 25m
San Juan Luis Munoz Marin Intl
Sun 7/12
5:00 am-2:00 pm
2 stops9h 00m
$420
DetroitSan Juan
DTW - SJU
DTWSJU
Detroit Metropolitan Wayne County
Sun 7/26
8:25 am-12:55 pm
Nonstop4h 30m
San Juan Luis Munoz Marin Intl
Fri 7/31
2:05 pm-6:44 pm
Nonstop4h 39m
$457
DetroitSan Juan
DTW - SJU
DTWSJU
Detroit Metropolitan Wayne County
Tue 6/30
8:25 am-12:54 pm
Nonstop4h 29m
San Juan Luis Munoz Marin Intl
Tue 7/7
2:05 pm-6:44 pm
Nonstop4h 39m
$457
DetroitSan Juan
DTW - SJU
DTWSJU
Detroit Metropolitan Wayne County
Sun 8/9
8:25 am-12:55 pm
Nonstop4h 30m
San Juan Luis Munoz Marin Intl
Sat 8/15
2:30 pm-7:05 pm
Nonstop4h 35m
$482
DetroitSan Juan
DTW - SJU
DTWSJU
Detroit Metropolitan Wayne County
Fri 5/29
4:00 pm-11:55 pm
2 stops7h 55m
San Juan Luis Munoz Marin Intl
Mon 6/1
2:00 pm-11:30 pm
2 stops9h 30m
$501
DetroitSan Juan
DTW - SJU
DTWSJU
Detroit Metropolitan Wayne County
Mon 6/8
8:25 am-12:54 pm
Nonstop4h 29m
San Juan Luis Munoz Marin Intl
Fri 6/12
2:04 pm-6:42 pm
Nonstop4h 38m
$507
DetroitSan Juan
DTW - SJU
DTWSJU
Detroit Metropolitan Wayne County
Mon 6/1
8:59 am-1:20 pm
Nonstop4h 21m
San Juan Luis Munoz Marin Intl
Mon 6/8
2:04 pm-6:42 pm
Nonstop4h 38m
$532
DetroitSan Juan
DTW - SJU
DTWSJU
Detroit Metropolitan Wayne County
Thu 6/11
2:58 pm-10:27 pm
1 stop7h 29m
San Juan Luis Munoz Marin Intl
Wed 6/17
2:04 pm-6:42 pm
Nonstop4h 38m
$537
DetroitSan Juan
DTW - SJU
DTWSJU
Detroit Metropolitan Wayne County
Thu 7/2
10:45 am-7:25 pm
2 stops8h 40m
San Juan Luis Munoz Marin Intl
Tue 7/7
1:30 pm-10:50 pm
2 stops9h 20m
$551
DetroitSan Juan
DTW - SJU
DTWSJU
Detroit Metropolitan Wayne County
Sat 8/8
12:25 pm-8:45 pm
1 stop8h 20m
San Juan Luis Munoz Marin Intl
Sat 8/15
2:30 pm-7:05 pm
Nonstop4h 35m
$557
Showing 1-10 of 22 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
How far ahead should I book a flight from Detroit to San Juan?
Use this chart to determine the optimal time to book a round-trip flight from Detroit to San Juan. Price data was last updated on March 13, 2026.
Booking 33 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.
What is the cheapest month to book a flight from Detroit to San Juan?
Currently, May is the cheapest month in which you can book a flight from Detroit to San Juan (average of $131). Flying from Detroit to San Juan in March is currently the most expensive (average of $209). 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 March 27, 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.
Weekly flight availability from Detroit to San Juan
Explore weekly flight availability from Detroit to San Juan. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated March 27, 2026.
The most flights from DTT to PR1 are scheduled on a Wednesday (2 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (1 on average).
How much does it cost to fly round-trip from Detroit to San Juan?
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 March 27, 2026.
Read through reviews of airlines operating flights from Detroit to San Juan, such as Delta,JetBlue, andAmerican Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Comfort
7.9
Food
7.2
Entertainment
7.8
Boarding
8.1
Crew
8.5
Overall
7.9
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Comfort
7.9
Food
7.2
Entertainment
7.8
Boarding
8.1
Crew
8.5
Overall
7.9
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Comfort
7.9
Food
7.2
Entertainment
7.8
Boarding
8.1
Crew
8.5
Overall
7.9
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Comfort
7.9
Food
7.2
Entertainment
7.8
Boarding
8.1
Crew
8.5
Overall
7.9
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Comfort
7.9
Food
7.2
Entertainment
7.8
Boarding
8.1
Crew
8.5
Overall
7.9
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Comfort
7.9
Food
7.2
Entertainment
7.8
Boarding
8.1
Crew
8.5
Overall
7.9
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
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.
Browse thousands of different options on Cheapflights for your next trip
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Alternative routes for Detroit to San Juan
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to San Juan by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Detroit to San Juan by cabin class
Find flights from Detroit to San Juan, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Detroit and San Juan flights
Browse other Detroit and San Juan flight options. Last updated on March 27, 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 March 27, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 7 airlines flying from Detroit to San Juan
Discover the top 7 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 March 27, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$130 | Average$287 | FlexibilityNo cancel fee | On-time65% | |
| Cheapest$162 | Average$319 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$202 | Average$528 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$211 | Average$360 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$266 | Average$545 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$329 | Average$576 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$395 | Average$523 | FlexibilityNo cancel fee | On-time63% |