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Cheap flights from Detroit to San Juan

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Compare Detroit to San Juan flight deals

Find the cheapest month or even day of the year to fly to San Juan

Book the best San Juan fare with no extra fees

Flight deals from Detroit to San Juan

Looking for a cheap last-minute deal or the best round-trip flight from Detroit to San Juan? Find the lowest prices on one-way and round-trip tickets right here.
San Juan.C$216 per passenger.Departing Sat, Apr 26, returning Wed, Apr 30.Round-trip flight with Spirit Airlines.Outbound indirect flight with Spirit Airlines, departing from Detroit Wayne County on Sat, Apr 26, arriving in San Juan Luis Munoz Marin.Inbound indirect flight with Spirit Airlines, departing from San Juan Luis Munoz Marin on Wed, Apr 30, arriving in Detroit Wayne County.Price includes taxes and charges.From C$216, select.
San Juan.C$230 per passenger.Departing Sat, Nov 8, returning Sat, Nov 15.Round-trip flight with Spirit Airlines.Outbound direct flight with Spirit Airlines departing from Detroit Wayne County on Sat, Nov 8, arriving in San Juan Luis Munoz Marin.Inbound direct flight with Spirit Airlines departing from San Juan Luis Munoz Marin on Sat, Nov 15, arriving in Detroit Wayne County.Price includes taxes and charges.From C$230, select.
San Juan.C$230 per passenger.Departing Mon, Sep 8, returning Fri, Sep 12.Round-trip flight with Spirit Airlines.Outbound direct flight with Spirit Airlines departing from Detroit Wayne County on Mon, Sep 8, arriving in San Juan Luis Munoz Marin.Inbound direct flight with Spirit Airlines departing from San Juan Luis Munoz Marin on Fri, Sep 12, arriving in Detroit Wayne County.Price includes taxes and charges.From C$230, select.
San Juan.C$230 per passenger.Departing Sat, Oct 18, returning Sat, Oct 25.Round-trip flight with Spirit Airlines.Outbound direct flight with Spirit Airlines departing from Detroit Wayne County on Sat, Oct 18, arriving in San Juan Luis Munoz Marin.Inbound direct flight with Spirit Airlines departing from San Juan Luis Munoz Marin on Sat, Oct 25, arriving in Detroit Wayne County.Price includes taxes and charges.From C$230, select.
San Juan.C$240 per passenger.Departing Tue, Apr 29, returning Tue, May 6.Round-trip flight with Spirit Airlines.Outbound indirect flight with Spirit Airlines, departing from Detroit Wayne County on Tue, Apr 29, arriving in San Juan Luis Munoz Marin.Inbound indirect flight with Spirit Airlines, departing from San Juan Luis Munoz Marin on Tue, May 6, arriving in Detroit Wayne County.Price includes taxes and charges.From C$240, select.
San Juan.C$257 per passenger.Departing Fri, Oct 24, returning Sat, Nov 1.Round-trip flight with Spirit Airlines.Outbound direct flight with Spirit Airlines departing from Detroit Wayne County on Fri, Oct 24, arriving in San Juan Luis Munoz Marin.Inbound direct flight with Spirit Airlines departing from San Juan Luis Munoz Marin on Sat, Nov 1, arriving in Detroit Wayne County.Price includes taxes and charges.From C$257, select.
San Juan.C$268 per passenger.Departing Mon, May 5, returning Fri, May 9.Round-trip flight with Spirit Airlines.Outbound indirect flight with Spirit Airlines, departing from Detroit Wayne County on Mon, May 5, arriving in San Juan Luis Munoz Marin.Inbound indirect flight with Spirit Airlines, departing from San Juan Luis Munoz Marin on Fri, May 9, arriving in Detroit Wayne County.Price includes taxes and charges.From C$268, select.
San Juan.C$328 per passenger.Departing Mon, Apr 14, returning Fri, Jun 27.Round-trip flight with Spirit Airlines.Outbound indirect flight with Spirit Airlines, departing from Detroit Wayne County on Mon, Apr 14, arriving in San Juan Luis Munoz Marin.Inbound indirect flight with Spirit Airlines, departing from San Juan Luis Munoz Marin on Fri, Jun 27, arriving in Detroit Wayne County.Price includes taxes and charges.From C$328, select.

Find the cheapest month to fly from Detroit to San Juan

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Detroit to San Juan flights are currently cheapest in April.
Mar
from C$513
Apr
from C$216
May
from C$268
Jun
from C$348
Jul
from C$387
Aug
from C$338
Sep
from C$230
Oct
from C$230
Nov
from C$230
Dec
from C$761
Jan
from C$646
Feb
from C$710

Direct flights from Detroit to San Juan

Alternative Detroit to San Juan routes

Looking for the cheapest, fastest or easiest route from Detroit to San Juan? You could fly into the following airports instead.

Detroit to San Juan: Flight information

The things to know before you go.
Cheapest flight foundC$216
Cheapest month to flyApril
Average flight time4 hrs, 22 mins
Most popular airlineWestJet
Average flights per week15

Finding cheap flights from Detroit to San Juan: Frequently asked questions

There are 6 airports in San Juan: San Juan Isla Grande, San Juan Luis Munoz Marin, Roosevelt Roads, Ponce, Vieques, and Culebra.
The best price we found for a round-trip flight from Detroit to San Juan is C$216. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
4 hours and 22 minutes is the average flight time from Detroit to San Juan.
WestJet, Delta and Spirit Airlines fly direct from Detroit to San Juan.
There are 15 flights per week flying from Detroit to San Juan, as of March 2025.
The cheapest month to fly from Detroit to San Juan is usually April.
If you're flying from Detroit, the cheapest airport near San Juan is San Juan Luis Munoz Marin – which is 11.3 km away from the center of San Juan. We've found flights to this airport from C$216.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Detroit to San Juan on Saturday, April 26, 2025.
Yes – the average flight time is 4 hours and 22 minutes.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to San Juan but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar, and it looks like the cheapest time to book a flight to San Juan is around 40 days in advance, so don’t leave your flight to the last minute.
In March, the average temperature is usually around 25°C. August is typically the warmest month in San Juan, when it usually averages around 29°C. You can expect the least rain in February. The coldest month is January, with temperatures averaging 23°C. The rainiest month is September.
The cheapest airline that flies to San Juan is Spirit Airlines.

How to find cheap flights to San Juan from Detroit

Looking for cheap tickets from Detroit to San Juan? Here are a few tips on how to secure the best flight price and make your journey as smooth as possible.

  • Simply hit "search." From Delta Air Lines to international carriers like Emirates, we compare all major airlines along with the most popular online travel agents to find the cheapest plane tickets from Detroit to San Juan. And with us, there are no hidden fees – what you see is what you pay.
  • Compare flight deals to San Juan from Detroit from over 1,000 providers. Then choose the cheapest plane tickets or fastest journeys.
  • Flex your dates to find the best Detroit–San Juan ticket prices. If you're flexible when it comes to your travel dates, use Skyscanner's "Whole month" tool to find the cheapest month, and even day to fly to San Juan from Detroit.
  • Set up a Price Alert. You can easily track the fare of your cheap Detroit–San Juan flights by creating an alert. Whenever prices go down or up, you'll get an email or push notification to help make sure you get the best possible flight deal.
  • Fly without stops. Only interested in direct flights between Detroit and San Juan? Make sure to tick "Direct flights only" when performing a search. If there are direct flights available on the route, these will appear in the results.
  • Find the cheapest Business Class flights from Detroit and San Juan. We scour the Internet for the best Business, Premium Economy and First Class flight fares to San Juan, too. Check the difference in price as you search – you might just stumble on a last-minute low fare. Note that not all cabin classes are available for every destination or airline.
  • Include nearby airports in your search. Widen your search for Detroit to San Juan flight deals by selecting the "add nearby airports" option. This will allow you to see flight prices for all the nearest airports at your departure point and your destination and could help you save the next time you travel.

    • Combine your flight to San Juan from Detroit with hotels and car rental

    Once you've secured your cheap flight ticket from Detroit to San Juan, discover the best prices and exclusive rates for hotels in San Juan or nearby. You can also compare hundreds of car rental companies at once so you get the best car rental price for your trip.


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Plan the rest of your trip from Detroit to San Juan

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.