$95+ Cheap flights from Detroit Metropolitan Wayne County Airport (DTW) 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 8/25. Fares are subject to change and may not be available on all flights or dates of travel.
DTW — SJU
Jul 27 — Aug 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 Metropolitan Wayne County to San Juan are usually found in September or August, booked 2 days in advance, depart on a Monday or Tuesday 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 June 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 June 27, 2026.
This eDestinos deal was found by Cheapflights users on 6/22. 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 7/216:10 am
DTW
- SJU
1 stop8h 06m
Frontier
Tue 7/215:15 pm
SJU
- DTW
1 stop7h 25m
Frontier
Deal found 6/22![Frontier logo]()
$300
This Kiwi.com deal was found by Cheapflights users on 6/22. 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.
Tue 8/1110:08 am
DTW
- SJU
1 stop30h 03m
Frontier
Mon 8/175:22 pm
SJU
- DTW
1 stop19h 22m
Frontier
Deal found 6/22![Frontier logo]()
$302
This Frontier deal was found by Cheapflights users on 6/22. 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.
Tue 7/141:50 pm
DTW
- SJU
1 stop13h 09m
Frontier
Wed 7/156:00 am
SJU
- DTW
1 stop6h 55m
Frontier
Deal found 6/22![Frontier logo]()
$331
This deal was found by Cheapflights users on 6/24. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/131:50 pm
DTW
- SJU
1 stop9h 34m
Frontier
Mon 9/213:00 am
SJU
- DTW
1 stop8h 54m
Frontier
Deal found 6/24![Frontier logo]()
$332
This deal was found by Cheapflights users on 6/24. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/111:50 pm
DTW
- SJU
1 stop9h 34m
Frontier
Wed 9/161:59 am
SJU
- DTW
1 stop8h 05m
Frontier
Deal found 6/24![Frontier logo]()
$334
This Kiwi.com deal was found by Cheapflights users on 6/23. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/159:12 am
DTW
- SJU
1 stop6h 53m
Frontier
Wed 7/225:15 pm
SJU
- DTW
1 stop7h 25m
Frontier
Deal found 6/23![Frontier logo]()
$335
This Frontier deal was found by Cheapflights users on 6/24. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/2211:00 am
DTW
- SJU
1 stop12h 38m
Frontier
Mon 10/53:00 am
SJU
- DTW
1 stop8h 54m
Frontier
Deal found 6/24![Frontier logo]()
$336
This deal was found by Cheapflights users on 6/24. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/91:50 pm
DTW
- SJU
1 stop9h 34m
Frontier
Mon 9/213:00 am
SJU
- DTW
1 stop8h 54m
Frontier
Deal found 6/24![Frontier logo]()
$337
This Kiwi.com deal was found by Cheapflights users on 6/22. 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.
Tue 7/149:12 am
DTW
- SJU
1 stop6h 53m
Frontier
Tue 7/215:15 pm
SJU
- DTW
1 stop7h 25m
Frontier
Deal found 6/22![Frontier logo]()
$338
This Kiwi.com deal was found by Cheapflights users on 6/22. 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 7/136:10 am
DTW
- SJU
2 stops31h 45m
Frontier
Wed 7/156:00 am
SJU
- DTW
1 stop6h 55m
Frontier
Deal found 6/22![Frontier logo]()
$339
This Kiwi.com deal was found by Cheapflights users on 6/24. 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 7/232:56 pm
DTW
- SJU
2 stops47h 04m
Frontier
Tue 7/288:37 pm
SJU
- DTW
1 stop15h 18m
Frontier
Deal found 6/24![Frontier logo]()
$340
This deal was found by Cheapflights users on 6/24. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/76:10 am
DTW
- SJU
1 stop8h 06m
Frontier
Sun 9/201:59 am
SJU
- DTW
1 stop8h 05m
Frontier
Deal found 6/24![Frontier logo]()
$341
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 June 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 June 27, 2026.
This Southwest deal was found by Cheapflights users on 6/25. 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.
Sun 11/11:30 pm
DTW
- SJU
2 stops10h 25m
Southwest
Tue 11/1710:45 am
SJU
- DTW
2 stops8h 10m
Southwest
Deal found 6/25![Southwest logo]()
$414
This Delta deal was found by Cheapflights users on 6/23. 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.
Wed 11/41:45 pm
DTW
- SJU
1 stop10h 11m
Delta
Thu 11/123:10 pm
SJU
- DTW
Nonstop4h 50m
Delta
Deal found 6/23![Delta logo]()
$502
This United Airlines deal was found by Cheapflights users on 6/24. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/1012:30 pm
DTW
- SJU
2 stops11h 20m
United Airlines
Sat 10/171:00 am
SJU
- DTW
2 stops10h 24m
United Airlines
Deal found 6/24![United Airlines logo]()
$646
This Delta deal was found by Cheapflights users on 6/22. 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 12/68:30 am
DTW
- SJU
1 stop7h 55m
Delta
Tue 12/153:10 pm
SJU
- DTW
Nonstop4h 49m
Delta
Deal found 6/22![Delta logo]()
$502
This Delta deal was found by Cheapflights users on 6/23. 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.
Sun 11/158:37 am
DTW
- SJU
Nonstop4h 23m
Delta
Mon 11/236:35 pm
SJU
- DTW
1 stop7h 09m
Delta
Deal found 6/23![Delta logo]()
$527
This Delta deal was found by Cheapflights users on 6/22. 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.
Thu 11/198:37 am
DTW
- SJU
Nonstop4h 23m
Delta
Mon 11/233:10 pm
SJU
- DTW
Nonstop4h 50m
Delta
Deal found 6/22![Delta logo]()
$547
This Delta deal was found by Cheapflights users on 6/26. 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.
Mon 8/249:25 am
DTW
- SJU
1 stop7h 13m
Delta
Sat 8/292:31 pm
SJU
- DTW
Nonstop4h 43m
Delta
Deal found 6/26![Delta logo]()
$577
This Delta deal was found by Cheapflights users on 6/26. 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.
Wed 9/165:20 am
DTW
- SJU
1 stop11h 29m
Delta
Sat 9/193:10 pm
SJU
- DTW
Nonstop4h 38m
Delta
Deal found 6/26![Delta logo]()
$577
This Delta deal was found by Cheapflights users on 6/26. 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 9/198:40 am
DTW
- SJU
Nonstop4h 34m
Delta
Sat 9/263:10 pm
SJU
- DTW
Nonstop4h 38m
Delta
Deal found 6/26![Delta logo]()
$592
This Delta deal was found by Cheapflights users on 6/24. 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.
Fri 12/48:36 am
DTW
- SJU
Nonstop4h 24m
Delta
Fri 12/117:00 am
SJU
- DTW
1 stop9h 11m
Delta
Deal found 6/24![Delta logo]()
$622
This Delta deal was found by Cheapflights users on 6/25. 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.
Mon 8/38:40 am
DTW
- SJU
Nonstop4h 36m
Delta
Thu 8/62:32 pm
SJU
- DTW
Nonstop4h 43m
Delta
Deal found 6/25![Delta logo]()
$627
This Delta deal was found by Cheapflights users on 6/23. 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 7/285:17 am
DTW
- SJU
1 stop11h 22m
Delta
Thu 8/62:32 pm
SJU
- DTW
Nonstop4h 43m
Delta
Deal found 6/23![Delta logo]()
$632
Last-minute flights from Detroit to San JuanDiscover last-minute flight deals from Detroit to San Juan. Data last updated June 27, 2026 and is based on user searches.
Discover last-minute flight deals from Detroit to San Juan. Data last updated June 27, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 6/22. 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 7/136:10 am
DTW
- SJU
2 stops31h 45m
Frontier
Tue 7/216:00 am
SJU
- DTW
1 stop6h 55m
Frontier
Deal found 6/22![Frontier logo]()
$339
This Frontier deal was found by Cheapflights users on 6/22. 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.
Tue 7/141:50 pm
DTW
- SJU
1 stop13h 09m
Frontier
Wed 7/156:00 am
SJU
- DTW
1 stop6h 55m
Frontier
Deal found 6/22![Frontier logo]()
$331
This Kiwi.com deal was found by Cheapflights users on 6/22. 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.
Tue 7/149:12 am
DTW
- SJU
1 stop6h 53m
Frontier
Tue 7/215:15 pm
SJU
- DTW
1 stop7h 25m
Frontier
Deal found 6/22![Frontier logo]()
$338
This Kiwi.com deal was found by Cheapflights users on 6/24. 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.
Tue 7/146:10 am
DTW
- SJU
2 stops18h 31m
Frontier
Sat 7/185:45 pm
SJU
- DTW
1 stop14h 32m
Frontier
Deal found 6/24![Frontier logo]()
$343
This Kiwi.com deal was found by Cheapflights users on 6/23. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/159:12 am
DTW
- SJU
1 stop6h 53m
Frontier
Wed 7/225:15 pm
SJU
- DTW
1 stop7h 25m
Frontier
Deal found 6/23![Frontier logo]()
$335
This Kiwi.com deal was found by Cheapflights users on 6/25. 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 7/175:35 pm
DTW
- SJU
2 stops31h 06m
Frontier
Mon 7/2010:48 pm
SJU
- DTW
1 stop13h 07m
Frontier
Deal found 6/25![Frontier logo]()
$348
This eDestinos deal was found by Cheapflights users on 6/22. 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 7/216:10 am
DTW
- SJU
1 stop8h 06m
Frontier
Tue 7/215:15 pm
SJU
- DTW
1 stop7h 25m
Frontier
Deal found 6/22![Frontier logo]()
$300
This Priceline deal was found by Cheapflights users on 6/24. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/218:30 pm
DTW
- SJU
1 stop14h 46m
Frontier
Tue 7/288:37 pm
SJU
- DTW
1 stop15h 18m
Frontier
Deal found 6/24![Frontier logo]()
$336
This Kiwi.com deal was found by Cheapflights users on 6/24. 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 7/232:56 pm
DTW
- SJU
2 stops47h 04m
Frontier
Tue 7/288:37 pm
SJU
- DTW
1 stop15h 18m
Frontier
Deal found 6/24![Frontier logo]()
$340
This Kiwi.com deal was found by Cheapflights users on 6/22. 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.
Tue 7/286:10 am
DTW
- SJU
2 stops18h 31m
Frontier
Fri 7/315:22 pm
SJU
- DTW
1 stop23h 55m
Frontier
Deal found 6/22![Frontier logo]()
$347
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 June 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 June 27, 2026.
This Kiwi.com deal was found by Cheapflights users on 6/22. 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.
Tue 8/251:40 pm
DTW
- SJU
1 stop11h 16m
Frontier
Deal found 6/22![Frontier logo]()
$95
This Kiwi.com deal was found by Cheapflights users on 6/23. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/1810:18 am
DTW
- SJU
1 stop29h 53m
Frontier
Deal found 6/23![Frontier logo]()
$123
This Kiwi.com deal was found by Cheapflights users on 6/25. 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.
Tue 9/2211:00 am
DTW
- SJU
1 stop12h 38m
Frontier
Deal found 6/25![Frontier logo]()
$125
This Kiwi.com deal was found by Cheapflights users on 6/25. 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.
Sat 9/2611:00 am
DTW
- SJU
1 stop12h 38m
Frontier
Deal found 6/25![Frontier logo]()
$126
This Kiwi.com deal was found by Cheapflights users on 6/26. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/233:34 pm
DTW
- SJU
2 stops32h 23m
Frontier
Deal found 6/26![Frontier logo]()
$134
This Kiwi.com deal was found by Cheapflights users on 6/22. 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.
Wed 7/156:10 am
DTW
- SJU
2 stops18h 31m
Frontier
Deal found 6/22![Frontier logo]()
$141
This Kiwi.com deal was found by Cheapflights users on 6/24. 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.
Sat 7/186:10 am
DTW
- SJU
2 stops18h 31m
Frontier
Deal found 6/24![Frontier logo]()
$142
Find flight deals from Detroit to San Juan
Discover tips and strategies to find the most affordable flight options for your journey from Detroit (DTW) 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 June 27, 2026.
Round-trip from | $300 (eDestinos) |
|---|---|
One-way from | $95 (Kiwi.com) |
Popular in | December |
Cheapest in | September |
Average price | $542 |
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 June 27, 2026.
Use the filters below to find and compare flights from Detroit Metropolitan Wayne County Airport 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
Sun 11/1
1:30 pm-12:55 am
2 stops10h 25m
San Juan Luis Munoz Marin Intl
Tue 11/17
10:45 am-5:55 pm
2 stops8h 10m
$414
DetroitSan Juan
DTW - SJU
DTWSJU
Detroit Metropolitan Wayne County
Wed 11/4
1:45 pm-12:56 am
1 stop10h 11m
San Juan Luis Munoz Marin Intl
Thu 11/12
3:10 pm-7:00 pm
Nonstop4h 50m
$502
DetroitSan Juan
DTW - SJU
DTWSJU
Detroit Metropolitan Wayne County
Sun 12/6
8:30 am-5:25 pm
1 stop7h 55m
San Juan Luis Munoz Marin Intl
Tue 12/15
3:10 pm-6:59 pm
Nonstop4h 49m
$502
DetroitSan Juan
DTW - SJU
DTWSJU
Detroit Metropolitan Wayne County
Sun 11/15
8:37 am-2:00 pm
Nonstop4h 23m
San Juan Luis Munoz Marin Intl
Mon 11/23
6:35 pm-12:44 am
1 stop7h 09m
$527
DetroitSan Juan
DTW - SJU
DTWSJU
Detroit Metropolitan Wayne County
Thu 11/19
8:37 am-2:00 pm
Nonstop4h 23m
San Juan Luis Munoz Marin Intl
Mon 11/23
3:10 pm-7:00 pm
Nonstop4h 50m
$547
DetroitSan Juan
DTW - SJU
DTWSJU
Detroit Metropolitan Wayne County
Mon 8/24
9:25 am-4:38 pm
1 stop7h 13m
San Juan Luis Munoz Marin Intl
Sat 8/29
2:31 pm-7:14 pm
Nonstop4h 43m
$577
DetroitSan Juan
DTW - SJU
DTWSJU
Detroit Metropolitan Wayne County
Wed 9/16
5:20 am-4:49 pm
1 stop11h 29m
San Juan Luis Munoz Marin Intl
Sat 9/19
3:10 pm-7:48 pm
Nonstop4h 38m
$577
Quickest round-trip
DetroitSan Juan
DTW - SJU
DTWSJU
Detroit Metropolitan Wayne County
Sat 9/19
8:40 am-1:14 pm
Nonstop4h 34m
San Juan Luis Munoz Marin Intl
Sat 9/26
3:10 pm-7:48 pm
Nonstop4h 38m
$592
DetroitSan Juan
DTW - SJU
DTWSJU
Detroit Metropolitan Wayne County
Fri 12/4
8:36 am-2:00 pm
Nonstop4h 24m
San Juan Luis Munoz Marin Intl
Fri 12/11
7:00 am-3:11 pm
1 stop9h 11m
$622
DetroitSan Juan
DTW - SJU
DTWSJU
Detroit Metropolitan Wayne County
Mon 8/3
8:40 am-1:16 pm
Nonstop4h 36m
San Juan Luis Munoz Marin Intl
Thu 8/6
2:32 pm-7:15 pm
Nonstop4h 43m
$627
Showing 1-10 of 23 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.
DTW-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 Metropolitan Wayne County Airport to San Juan
DTW-PR1
DTW-SJU
What is the cheapest month to book a flight from Detroit Metropolitan Wayne County Airport to San Juan?
Currently, September is the cheapest month in which you can book a flight from Detroit Metropolitan Wayne County Airport to San Juan (average of $67). Flying from Detroit Metropolitan Wayne County Airport to San Juan in March is currently the most expensive (average of $1,322). 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 DTW 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 June 27, 2026.
When flying from Detroit Metropolitan Wayne County Airport to San Juan, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.
Weekly flight availability from Detroit Metropolitan Wayne County Airport 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 June 27, 2026.
The most flights from DTW to PR1 are scheduled on a Monday (2 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (2 on average).
How much does it cost to fly round-trip from Detroit Metropolitan Wayne County Airport to San Juan?
How far ahead should I book a flight from Detroit Metropolitan Wayne County Airport 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 Metropolitan Wayne County Airport 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 June 27, 2026.
Peruse reviews from past customers who have flown with Southwest,Delta, andAmerican Airlines from Detroit Metropolitan Wayne County Airport to San Juan to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Boarding
8.1
Overall
7.9
Crew
8.6
Comfort
8.0
Food
7.0
Entertainment
7.5
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Boarding
8.1
Overall
7.9
Crew
8.6
Comfort
8.0
Food
7.0
Entertainment
7.5
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Boarding
8.1
Overall
7.9
Crew
8.6
Comfort
8.0
Food
7.0
Entertainment
7.5
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Boarding
8.1
Overall
7.9
Crew
8.6
Comfort
8.0
Food
7.0
Entertainment
7.5
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Boarding
8.1
Overall
7.9
Crew
8.6
Comfort
8.0
Food
7.0
Entertainment
7.5
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Boarding
8.1
Overall
7.9
Crew
8.6
Comfort
8.0
Food
7.0
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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Complete your trip
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Detroit and San Juan flights
Browse other Detroit and San Juan flight options. Last updated on June 27, 2026.
Other flights from Detroit
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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 June 27, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$168 | Average$355 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$196 | Average$597 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$211 | Average$362 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$266 | Average$545 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$329 | Average$608 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$394 | Average$516 | FlexibilityNo cancel fee | On-time63% |