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Cheap flights from Detroit to San Juan from $117

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 8/4. 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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Find the cheapest flights from Detroit to San Juan

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
12:50 pm - 12:47 am
DTW
-
SJU
11h 57m
1 stop
Frontier Logo
2:36 pm - 10:04 am
SJU
-
DTW
19h 28m
1 stop
$240Frontier
Mon, Aug 10 - Mon, Aug 17
Frontier Logo
12:30 pm - 11:29 pm
DTW
-
SJU
10h 59m
1 stop
Frontier Logo
5:15 pm - 12:40 am
SJU
-
DTW
7h 25m
1 stop
$256Frontier
Sat, Jul 4 - Wed, Jul 8
Frontier Logo
12:37 pm - 2:11 am
DTW
-
SJU
13h 34m
1 stop
Frontier Logo
5:15 pm - 12:40 am
SJU
-
DTW
7h 25m
1 stop
$258Frontier
Sat, Aug 8 - Mon, Aug 17
Frontier Logo
6:30 am - 2:16 pm
DTW
-
SJU
7h 46m
1 stop
Frontier Logo
6:31 pm - 11:55 am
SJU
-
DTW
17h 24m
1 stop
$276Frontier
Sun, Aug 9 - Wed, Aug 12
Frontier Logo
7:25 pm - 2:11 am
DTW
-
SJU
6h 46m
1 stop
Frontier Logo
4:05 pm - 11:47 am
SJU
-
DTW
19h 42m
1 stop
$277Frontier
Sun, Aug 9 - Mon, Aug 17
Frontier Logo
12:37 pm - 2:11 am
DTW
-
SJU
13h 34m
1 stop
Frontier Logo
7:30 am - 4:50 pm
SJU
-
DTW
9h 20m
2 stops
$292Frontier
Sat, Aug 8 - Wed, Aug 12
Frontier Logo
6:30 am - 2:16 pm
DTW
-
SJU
7h 46m
1 stop
Frontier Logo
9:24 am - 11:55 am
SJU
-
DTW
26h 31m
1 stop
$294Frontier
Sun, Aug 9 - Sun, Aug 16
Frontier Logo
7:25 pm - 2:11 am
DTW
-
SJU
6h 46m
1 stop
Frontier Logo
4:05 pm - 11:47 am
SJU
-
DTW
19h 42m
1 stop
$295Frontier
Sun, Aug 9 - Sat, Aug 22
Frontier Logo
12:30 pm - 2:09 am
DTW
-
SJU
13h 39m
1 stop
Frontier Logo
5:15 pm - 12:40 am
SJU
-
DTW
7h 25m
1 stop
$297Frontier
Wed, Jul 1 - Wed, Jul 8
Frontier Logo
12:37 pm - 11:29 pm
DTW
-
SJU
10h 52m
1 stop
Frontier Logo
3:06 am - 6:20 pm
SJU
-
DTW
15h 14m
1 stop
$301Frontier
Tue, Aug 4 - Mon, Aug 10

Frontier flights from Detroit to San Juan

Our best Frontier deals on Detroit to San Juan flight tickets
Frontier
Aug 10
DTW12:50 pmDetroit Metropolitan Wayne County
11h 57m
1 stop
SJU12:47 amSan Juan Luis Munoz Marin Intl
Aug 17
SJU2:36 pmSan Juan Luis Munoz Marin Intl
19h 28m
1 stop
DTW10:04 amDetroit Metropolitan Wayne County
$240
Frontier
Jul 4
DTW12:30 pmDetroit Metropolitan Wayne County
10h 59m
1 stop
SJU11:29 pmSan Juan Luis Munoz Marin Intl
Jul 8
SJU5:15 pmSan Juan Luis Munoz Marin Intl
7h 25m
1 stop
DTW12:40 amDetroit Metropolitan Wayne County
$256
Frontier
Aug 8
DTW12:37 pmDetroit Metropolitan Wayne County
13h 34m
1 stop
SJU2:11 amSan Juan Luis Munoz Marin Intl
Aug 17
SJU5:15 pmSan Juan Luis Munoz Marin Intl
7h 25m
1 stop
DTW12:40 amDetroit Metropolitan Wayne County
$258

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 May 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

Mon 8/10

12:50 pm-12:47 am

1 stop11h 57m

San Juan Luis Munoz Marin Intl

Mon 8/17

2:36 pm-10:04 am

1 stop19h 28m

$240
Quickest round-trip

DetroitSan Juan

DTW - SJU

DTWSJU

Detroit Metropolitan Wayne County

Sat 7/4

12:30 pm-11:29 pm

1 stop10h 59m

San Juan Luis Munoz Marin Intl

Wed 7/8

5:15 pm-12:40 am

1 stop7h 25m

$256

DetroitSan Juan

DTW - SJU

DTWSJU

Detroit Metropolitan Wayne County

Sat 8/8

12:37 pm-2:11 am

1 stop13h 34m

San Juan Luis Munoz Marin Intl

Mon 8/17

5:15 pm-12:40 am

1 stop7h 25m

$258

DetroitSan Juan

DTW - SJU

DTWSJU

Detroit Metropolitan Wayne County

Sun 8/9

6:30 am-2:16 pm

1 stop7h 46m

San Juan Luis Munoz Marin Intl

Wed 8/12

6:31 pm-11:55 am

1 stop17h 24m

$276

DetroitSan Juan

DTW - SJU

DTWSJU

Detroit Metropolitan Wayne County

Sun 8/9

7:25 pm-2:11 am

1 stop6h 46m

San Juan Luis Munoz Marin Intl

Mon 8/17

4:05 pm-11:47 am

1 stop19h 42m

$277

DetroitSan Juan

DTW - SJU

DTWSJU

Detroit Metropolitan Wayne County

Sat 8/8

12:37 pm-2:11 am

1 stop13h 34m

San Juan Luis Munoz Marin Intl

Wed 8/12

7:30 am-4:50 pm

2 stops9h 20m

$292

DetroitSan Juan

DTW - SJU

DTWSJU

Detroit Metropolitan Wayne County

Sun 8/9

6:30 am-2:16 pm

1 stop7h 46m

San Juan Luis Munoz Marin Intl

Sun 8/16

9:24 am-11:55 am

1 stop26h 31m

$294

DetroitSan Juan

DTW - SJU

DTWSJU

Detroit Metropolitan Wayne County

Sun 8/9

7:25 pm-2:11 am

1 stop6h 46m

San Juan Luis Munoz Marin Intl

Sat 8/22

4:05 pm-11:47 am

1 stop19h 42m

$295

DetroitSan Juan

DTW - SJU

DTWSJU

Detroit Metropolitan Wayne County

Wed 7/1

12:30 pm-2:09 am

1 stop13h 39m

San Juan Luis Munoz Marin Intl

Wed 7/8

5:15 pm-12:40 am

1 stop7h 25m

$297

DetroitSan Juan

DTW - SJU

DTWSJU

Detroit Metropolitan Wayne County

Tue 8/4

12:37 pm-11:29 pm

1 stop10h 52m

San Juan Luis Munoz Marin Intl

Mon 8/10

3:06 am-6:20 pm

1 stop15h 14m

$301

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 June, then September is your next best option. Flight prices from Detroit to San Juan during September average around $67.

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 Monday when prices can be found for as low as $420. The most expensive day to fly to San Juan is Wednesday, with ticket prices averaging around $515.

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 from Detroit 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 $384 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 $312 on momondo.

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 21m

Direct flights

Every day

Airports in San Juan

2 airports
The fastest flight from Detroit to San Juan takes 4h 21m
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 21m 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 $132Free CancellationRating
6.3
8,633 reviews
Search Spirit Airlines flights
FrontierPriceFrom $168Free CancellationRating
5.6
2,951 reviews
Search Frontier flights
DeltaPriceFrom $199Free CancellationRating
7.9
8,447 reviews
Search Delta flights
JetBluePriceFrom $211Free CancellationRating
7.1
2,973 reviews
Search JetBlue flights
United AirlinesPriceFrom $266Free CancellationRating
7.4
9,701 reviews
Search United Airlines flights
American AirlinesPriceFrom $329Free CancellationRating
7.1
11,663 reviews
Search American Airlines flights
SouthwestPriceFrom $395Free CancellationRating
8.0
4,295 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