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Cheap flights from Detroit to San Juan from $81

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Detroit to San Juan departing on 5/15. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Detroit to San Juan

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
12:55 pm - 11:28 pm
DTW
-
SJU
10h 33m
1 stop
Frontier Logo
5:15 pm - 12:39 am
SJU
-
DTW
7h 24m
1 stop
$211Frontier
Sun, May 17 - Sat, May 23
Frontier Logo
2:40 pm - 4:49 am
DTW
-
SJU
14h 09m
1 stop
Frontier Logo
3:03 am - 12:00 pm
SJU
-
DTW
8h 57m
1 stop
$212Frontier
Mon, Jun 1 - Thu, Jun 4
Frontier Logo
6:57 pm - 11:57 pm
DTW
-
SJU
29h 00m
1 stop
Frontier Logo
2:30 pm - 11:49 am
SJU
-
DTW
21h 19m
1 stop
$219Frontier
Thu, May 7 - Sun, May 17
Frontier Logo
12:30 pm - 2:09 am
DTW
-
SJU
13h 39m
1 stop
Frontier Logo
6:25 am - 6:58 pm
SJU
-
DTW
12h 33m
1 stop
$221Frontier
Tue, Jun 9 - Sat, Jun 13
Frontier Logo
11:26 am - 10:48 pm
DTW
-
SJU
11h 22m
1 stop
Frontier Logo
3:39 pm - 9:24 am
SJU
-
DTW
17h 45m
1 stop
$223Frontier
Sat, Apr 25 - Thu, Apr 30
Frontier Logo
7:58 pm - 4:55 am
DTW
-
SJU
8h 57m
1 stop
Frontier Logo
5:15 pm - 12:42 am
SJU
-
DTW
7h 27m
1 stop
$224Frontier
Tue, Jun 9 - Tue, Jun 16
Frontier Logo
10:16 pm - 10:23 am
DTW
-
SJU
12h 07m
1 stop
Frontier Logo
3:26 pm - 9:14 am
SJU
-
DTW
17h 48m
1 stop
$226Frontier
Fri, Apr 24 - Sat, May 2
Frontier Logo
10:19 am - 11:43 pm
DTW
-
SJU
13h 24m
1 stop
Frontier Logo
3:08 am - 4:14 pm
SJU
-
DTW
13h 06m
2 stops
$227Frontier
Mon, Apr 27 - Fri, May 1
Frontier Logo
12:44 pm - 2:08 am
DTW
-
SJU
13h 24m
1 stop
Frontier Logo
5:15 pm - 12:39 am
SJU
-
DTW
7h 24m
1 stop
$229Frontier
Sat, May 23 - Sat, Jun 6
Frontier Logo
12:54 pm - 2:08 am
DTW
-
SJU
13h 14m
1 stop
Frontier Logo
2:30 pm - 11:49 am
SJU
-
DTW
21h 19m
1 stop
$230Frontier
Wed, May 13 - Sun, May 17

Frontier flights from Detroit to San Juan

Our best Frontier deals on Detroit to San Juan flight tickets
Frontier
May 17
DTW12:55 pmDetroit Metropolitan Wayne County
10h 33m
1 stop
SJU11:28 pmSan Juan Luis Munoz Marin Intl
May 23
SJU5:15 pmSan Juan Luis Munoz Marin Intl
7h 24m
1 stop
DTW12:39 amDetroit Metropolitan Wayne County
$211
Frontier
Jun 1
DTW2:40 pmDetroit Metropolitan Wayne County
14h 09m
1 stop
SJU4:49 amSan Juan Luis Munoz Marin Intl
Jun 4
SJU3:03 amSan Juan Luis Munoz Marin Intl
8h 57m
1 stop
DTW12:00 pmDetroit Metropolitan Wayne County
$212
Frontier
Apr 20
DTW10:19 amDetroit Metropolitan Wayne County
13h 24m
1 stop
SJU11:43 pmSan Juan Luis Munoz Marin Intl
May 12
SJU5:15 pmSan Juan Luis Munoz Marin Intl
7h 24m
1 stop
DTW12:39 amDetroit Metropolitan Wayne County
$215

Spirit Airlines flights from Detroit to San Juan

Our best Spirit Airlines deals on Detroit to San Juan flight tickets
Spirit Airlines
Aug 22
DTW1:27 pmDetroit Metropolitan Wayne County
12h 11m
1 stop
SJU1:38 amSan Juan Luis Munoz Marin Intl
Aug 26
SJU3:23 pmSan Juan Luis Munoz Marin Intl
8h 36m
1 stop
DTW11:59 pmDetroit Metropolitan Wayne County
$238
Spirit Airlines
Aug 22
DTW1:27 pmDetroit Metropolitan Wayne County
12h 11m
1 stop
SJU1:38 amSan Juan Luis Munoz Marin Intl
Aug 25
SJU2:53 amSan Juan Luis Munoz Marin Intl
9h 29m
1 stop
DTW12:22 pmDetroit Metropolitan Wayne County
$239
Spirit Airlines
Aug 18
DTW6:15 amDetroit Metropolitan Wayne County
10h 28m
1 stop
SJU4:43 pmSan Juan Luis Munoz Marin Intl
Aug 24
SJU2:53 amSan Juan Luis Munoz Marin Intl
9h 29m
1 stop
DTW12:22 pmDetroit Metropolitan Wayne County
$251

momondo 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, momondo users made 832,500 searches. Data last updated April 13, 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

Price

Cheapest round-trip

DetroitSan Juan

DTW - SJU

DTWSJU

Detroit Metropolitan Wayne County

Sun 5/17

12:55 pm-11:28 pm

1 stop10h 33m

San Juan Luis Munoz Marin Intl

Sat 5/23

5:15 pm-12:39 am

1 stop7h 24m

$211

DetroitSan Juan

DTW - SJU

DTWSJU

Detroit Metropolitan Wayne County

Mon 6/1

2:40 pm-4:49 am

1 stop14h 09m

San Juan Luis Munoz Marin Intl

Thu 6/4

3:03 am-12:00 pm

1 stop8h 57m

$212

DetroitSan Juan

DTW - SJU

DTWSJU

Detroit Metropolitan Wayne County

Thu 5/7

6:57 pm-11:57 pm

1 stop29h 00m

San Juan Luis Munoz Marin Intl

Sun 5/17

2:30 pm-11:49 am

1 stop21h 19m

$219

DetroitSan Juan

DTW - SJU

DTWSJU

Detroit Metropolitan Wayne County

Tue 6/9

12:30 pm-2:09 am

1 stop13h 39m

San Juan Luis Munoz Marin Intl

Sat 6/13

6:25 am-6:58 pm

1 stop12h 33m

$221

DetroitSan Juan

DTW - SJU

DTWSJU

Detroit Metropolitan Wayne County

Sat 4/25

11:26 am-10:48 pm

1 stop11h 22m

San Juan Luis Munoz Marin Intl

Thu 4/30

3:39 pm-9:24 am

1 stop17h 45m

$223
Quickest round-trip

DetroitSan Juan

DTW - SJU

DTWSJU

Detroit Metropolitan Wayne County

Tue 6/9

7:58 pm-4:55 am

1 stop8h 57m

San Juan Luis Munoz Marin Intl

Tue 6/16

5:15 pm-12:42 am

1 stop7h 27m

$224

DetroitSan Juan

DTW - SJU

DTWSJU

Detroit Metropolitan Wayne County

Fri 4/24

10:16 pm-10:23 am

1 stop12h 07m

San Juan Luis Munoz Marin Intl

Sat 5/2

3:26 pm-9:14 am

1 stop17h 48m

$226

DetroitSan Juan

DTW - SJU

DTWSJU

Detroit Metropolitan Wayne County

Mon 4/27

10:19 am-11:43 pm

1 stop13h 24m

San Juan Luis Munoz Marin Intl

Fri 5/1

3:08 am-4:14 pm

2 stops13h 06m

$227

DetroitSan Juan

DTW - SJU

DTWSJU

Detroit Metropolitan Wayne County

Sat 5/23

12:44 pm-2:08 am

1 stop13h 24m

San Juan Luis Munoz Marin Intl

Sat 6/6

5:15 pm-12:39 am

1 stop7h 24m

$229

DetroitSan Juan

DTW - SJU

DTWSJU

Detroit Metropolitan Wayne County

Wed 5/13

12:54 pm-2:08 am

1 stop13h 14m

San Juan Luis Munoz Marin Intl

Sun 5/17

2:30 pm-11:49 am

1 stop21h 19m

$230

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to San Juan from

How to get the cheapest flight ticket from Detroit to San Juan

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between Detroit and San Juan?

What is the cheapest month to fly to San Juan?

If you’re not able to fly to San Juan in August, then October is your next best option. Flight prices from Detroit to San Juan during October average around $225.

What is the cheapest day to depart on your flight to San Juan?

The cheapest day to depart from Detroit to San Juan is on a Thursday when prices can be found for as low as $394. The most expensive day to fly to San Juan is Saturday, with ticket prices averaging around $514.

What is the cheapest Detroit to San Juan flight route?

Fly from Detroit Metropolitan Wayne County to San Juan Luis Munoz Marin Intl for the best Detroit - San Juan flight prices

How far in advance should I book a flight to San Juan?

You are more likely to see cheaper flights to San Juan from Detroit when booking weeks ahead of your departure date. In general, you can expect to find flights to San Juan for around $376 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Juan from Detroit for as low as $309 on momondo.

What cabin class options are available on Detroit to San Juan flights?

There are 4 cabin classes available to choose from on Detroit to San Juan flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Cheap Detroit to San Juan flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Detroit to San Juan

Fastest flight time

4h 17m

Direct flights

Every day

Airports in San Juan

2 airports
The fastest flight from Detroit to San Juan takes 4h 17m
Direct flights go from Detroit to San Juan every day.
There are 2 airports in San Juan. From Detroit there are direct flights to San Juan Luis Munoz Marin Intl (SJU).
Search flight deals

Frequently asked questions about flying from Detroit to San Juan

  • How far is Detroit to San Juan by plane?

    The distance between Detroit and San Juan is about 1924.3 mi. 4h 17m is a normal flight duration for this route.

  • When did momondo last update prices for flights from Detroit to San Juan?

    Prices for flights from Detroit to San Juan are updated daily.

  • How many operators does momondo search for flights from Detroit to San Juan?

  • How old do you have to be to fly from Detroit to San Juan?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Detroit to San Juan.

  • What documentation or ID do you need to fly to San Juan?

    The travel and health documents you'll need for your trip to San Juan may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at San Juan. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Detroit to San Juan

Compare and see reviews for airlines that fly from Detroit to San Juan with momondo
Airline
Rating
Free Cancellation
Price
Spirit AirlinesPriceFrom $130Free CancellationRating
6.3
8,617 reviews
Search Spirit Airlines flights
FrontierPriceFrom $168Free CancellationRating
5.7
2,994 reviews
Search Frontier flights
DeltaPriceFrom $199Free CancellationRating
7.9
8,407 reviews
Search Delta flights
JetBluePriceFrom $211Free CancellationRating
7.2
2,931 reviews
Search JetBlue flights
United AirlinesPriceFrom $266Free CancellationRating
7.4
9,580 reviews
Search United Airlines flights
American AirlinesPriceFrom $329Free CancellationRating
7.1
11,565 reviews
Search American Airlines flights
SouthwestPriceFrom $395Free CancellationRating
8.0
4,328 reviews
Search Southwest flights

Why use momondo?

Why should I use momondo to find a flight deal from Detroit to San Juan?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Detroit to San Juan for you.

Can I find flights from Detroit to San Juan with flexible booking policies on momondo?

All flight searches from Detroit to San Juan on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Detroit to San Juan?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to San Juan from Detroit.

I’m not ready to book a flight from Detroit to San Juan right now. Can momondo alert me if prices change?

Price alerts on flights to San Juan from Detroit are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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Find better results for your trip to Puerto Rico

Fly into one of these airports located in San Juan

Airports listed have a maximum distance of 7.1 mi from San Juan
San Juan Isla Grande Airport
San Juan Luis Munoz Marin Intl Airport