Cheap flights from Detroit to San Juan from $86
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 5/18. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
Round-trip
1 adult
Economy
0 bags
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Cheap round-trip flights
These are some of the best round-trip flight deals from Detroit to San Juan that have been recently found on momondo from popular airlines, departing in the coming months.
Cheap one-way flights
Flying one-way? These are some of the best deals recently discovered on momondo for flights from Detroit to San Juan.
Cheap last minute flights
Planning a quick getaway from Detroit to San Juan? These are the last-minute flight deals available now.
Cheap direct flights
If you prefer a non-stop journey, check out our latest direct flight deals to San Juan, so you can enjoy a seamless trip without layovers.
Spirit Airlines flights from Detroit to San Juan
Our best Spirit Airlines deals on Detroit to San Juan flight tickets
Spirit Airlines![Spirit Airlines]()
May 24![Spirit Airlines]()
May 29
DTW9:09 pmDetroit Metropolitan Wayne County
14h 22m
1 stop
SJU11:31 amSan Juan Luis Munoz Marin Intl
SJU8:57 pmSan Juan Luis Munoz Marin Intl
15h 18m
1 stop
DTW12:15 pmDetroit Metropolitan Wayne County
Spirit Airlines![Spirit Airlines]()
May 24![Spirit Airlines]()
May 31
DTW9:09 pmDetroit Metropolitan Wayne County
14h 22m
1 stop
SJU11:31 amSan Juan Luis Munoz Marin Intl
SJU8:12 pmSan Juan Luis Munoz Marin Intl
13h 03m
1 stop
DTW9:15 amDetroit Metropolitan Wayne County
Delta flights from Detroit to San Juan
Our best Delta deals on Detroit to San Juan flight tickets
Delta![Delta]()
May 25![Delta]()
May 30
DTW8:25 amDetroit Metropolitan Wayne County
4h 20m
SJU12:45 pmSan Juan Luis Munoz Marin Intl
SJU1:55 pmSan Juan Luis Munoz Marin Intl
4h 50m
DTW6:45 pmDetroit Metropolitan Wayne County
Delta![Delta]()
May 5![Delta]()
May 30
DTW8:56 amDetroit Metropolitan Wayne County
4h 14m
SJU1:10 pmSan Juan Luis Munoz Marin Intl
SJU7:30 amSan Juan Luis Munoz Marin Intl
9h 28m
1 stop
DTW4:58 pmDetroit Metropolitan Wayne County
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
Prices
Airlines
Other information
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 September is your next best option. Flight prices from Detroit to San Juan during September average around $277.
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 $560. The most expensive day to fly to San Juan is Saturday, with ticket prices averaging around $694.
What is the cheapest time of day to depart on your flight to San Juan?
The cheapest time of day to fly to San Juan is in the evening when flights can be purchased for as low as $262. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are $641 on average. Flights to San Juan from Detroit in the morning are generally more expensive because this time of day is more convenient for travelers’ schedules.
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 3 weeks ahead of your departure date. In general, you can expect to find flights to San Juan for around $419 when searching 3 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 $328 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.
What is the cheapest airline that flies from Detroit to San Juan?
Spirit Airlines, Frontier, and JetBlue are the most popular carriers operating from Detroit to San Juan
What airlines fly to San Juan?
Spirit Airlines, Delta and American Airlines are the top three most popular airlines that fly to San Juan from Detroit according to our data. Spirit Airlines is the first choice among our users, with 45% of people opting to fly with this airline when traveling to San Juan. Keep in mind that there are 7 different airlines that fly to San Juan on a routine basis, so you have a few additional options to choose from.
How many flights depart from Detroit to San Juan on average per day?
As of April 2025, there are 1 flights per day flying from Detroit to San Juan. The most common time of day flights depart is 8:00AM, with 100% of flights taking off at noon.
How many flights depart from Detroit to San Juan on average per week?
As of April 2025, 9 flights take off from Detroit and land in San Juan each week. The most common flight departure day for this route is Mon, with 22% of weekly flights taking off on this day.
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
How far is Detroit to San Juan by plane?
The distance between Detroit and San Juan is about 1924.3 mi. 4h 20m 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?
There are 7 operators available for flights from Detroit to San Juan as of April 2025.
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 | ||
|---|---|---|---|---|---|
| PriceFrom $124 | Free Cancellation | Rating 5.9 3,284 reviews | |||
| PriceFrom $180 | Free Cancellation | Rating 6.3 7,956 reviews | |||
| PriceFrom $276 | Free Cancellation | Rating 7.3 2,922 reviews | |||
| PriceFrom $284 | Free Cancellation | Rating 7.2 10,000 reviews | |||
| PriceFrom $416 | Free Cancellation | Rating 8.0 7,929 reviews | |||
| PriceFrom $435 | Free Cancellation | Rating 7.4 8,696 reviews | |||
| PriceFrom $465 | Free Cancellation | Rating 8.0 4,295 reviews |
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.