$258 Cheap Flights from Duluth (DLH) to San Juan (SJU)

View $258 flight on Tue, Dec 9, 2025Opens in a new window

Popular airlines from Duluth, MN (DLH-Duluth Intl.) to Luis Munoz Marin Intl. Airport (SJU)

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Cheap Flights from Duluth to San Juan (DLH-SJU)

Prices were available within the past 7 days and start at $258 for one-way flights and $475 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Tue, Nov 18 - Thu, Dec 4
DLH
Duluth
SJU
San Juan
$475 Roundtrip, found 4 hours ago
$475
Roundtrip
found 4 hours ago
Select Delta flight, departing Tue, Nov 18 from Duluth to San Juan, returning Thu, Dec 4, priced at $475 found 4 hours ago
Delta
Tue, Nov 18 - Sat, Dec 6
DLH
Duluth
SJU
San Juan
$495 Roundtrip, found 4 hours ago
$495
Roundtrip
found 4 hours ago
Select Delta flight, departing Tue, Nov 18 from Duluth to San Juan, returning Sat, Dec 6, priced at $495 found 4 hours ago
United
Tue, Jan 20 - Sat, Feb 7
DLH
Duluth
SJU
San Juan
$505 Roundtrip, found 3 days ago
$505
Roundtrip
found 3 days ago
Select United flight, departing Tue, Jan 20 from Duluth to San Juan, returning Sat, Feb 7, priced at $505 found 3 days ago
Delta
Sat, Apr 25 - Sat, May 9
DLH
Duluth
SJU
San Juan
$515 Roundtrip, found 3 days ago
$515
Roundtrip
found 3 days ago
Select Delta flight, departing Sat, Apr 25 from Duluth to San Juan, returning Sat, May 9, priced at $515 found 3 days ago
Delta
Mon, Dec 8 - Wed, Dec 24
DLH
Duluth
SJU
San Juan
$520 Roundtrip, found 4 hours ago
$520
Roundtrip
found 4 hours ago
Select Delta flight, departing Mon, Dec 8 from Duluth to San Juan, returning Wed, Dec 24, priced at $520 found 4 hours ago
United
Sat, Jan 24 - Sat, Feb 7
DLH
Duluth
SJU
San Juan
$525 Roundtrip, found 3 days ago
$525
Roundtrip
found 3 days ago
Select United flight, departing Sat, Jan 24 from Duluth to San Juan, returning Sat, Feb 7, priced at $525 found 3 days ago
United
Tue, Jan 20 - Thu, Feb 5
DLH
Duluth
SJU
San Juan
$530 Roundtrip, found 3 days ago
$530
Roundtrip
found 3 days ago
Select United flight, departing Tue, Jan 20 from Duluth to San Juan, returning Thu, Feb 5, priced at $530 found 3 days ago
Delta
Sat, Nov 22 - Tue, Dec 9
DLH
Duluth
SJU
San Juan
$540 Roundtrip, found 4 hours ago
$540
Roundtrip
found 4 hours ago
Select Delta flight, departing Sat, Nov 22 from Duluth to San Juan, returning Tue, Dec 9, priced at $540 found 4 hours ago
United
Tue, Apr 21 - Thu, May 7
DLH
Duluth
SJU
San Juan
$545 Roundtrip, found 3 days ago
$545
Roundtrip
found 3 days ago
Select United flight, departing Tue, Apr 21 from Duluth to San Juan, returning Thu, May 7, priced at $545 found 3 days ago
United
Mon, Nov 17 - Sat, Dec 6
DLH
Duluth
SJU
San Juan
$550 Roundtrip, found 1 day ago
$550
Roundtrip
found 1 day ago
Select United flight, departing Mon, Nov 17 from Duluth to San Juan, returning Sat, Dec 6, priced at $550 found 1 day ago

Alternative airports near San Juan

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Luis Munoz Marin Intl. SJU. Cheapest option available. Average driving time to city center is 16 minutes. Flights from $635
SJU
Luis Munoz Marin Intl.
Cheapest
Average driving time to city center16 min
Flights from $635
Flights from Duluth (DLH) to San Juan (SJU)
Origin airport
Duluth Intl.
Destination airport
Luis Munoz Marin Intl.
Airlines serving
Delta, United
Roundtrip price
$475
Distance
2459 mi

Duluth to San Juan Flights

The cheapest times to fly from Duluth to San Juan

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Duluth to San Juan are during the month of November. You can find some of the cheapest flights from Duluth to San Juan with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Duluth to San Juan

Sunday is one of the best days to book for cheap flights from Duluth to San Juan: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Duluth to San Juan

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Duluth to San Juan in 2025. You can also book with separate airlines for your outbound and return journeys, from $258 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Duluth to San Juan flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Duluth to San Juan airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Duluth Intl. Airport (DLH) to Luis Munoz Marin Intl. Airport (SJU) cost?
Secure a cheap one-way flight from $258 or cheap return flight from $475 from Duluth Intl. Airport (DLH) to Luis Munoz Marin Intl. Airport (SJU) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from Duluth Intl. Airport (DLH) to Luis Munoz Marin Intl. Airport (SJU)?
The cheapest month to fly from DLH to SJU is November, when demand is low. Off-peak season is typically when you'll find lower airfares between these airports.
What is the cheapest airline that flies from Duluth Intl. Airport (DLH) to Luis Munoz Marin Intl. Airport (SJU)?
To find the cheapest airline that'll fly you from DLH to SJU, use Expedia's filter tool. Customize your search based on what's important to you, such as preferred carriers and cabin class. You can then sort your results by "Price (lowest to highest)" to discover the cheapest flight right away.
How many flights per day from Duluth Intl. Airport (DLH) to Luis Munoz Marin Intl. Airport (SJU)?
Nonstop flights from Duluth Intl. Airport (DLH) to Luis Munoz Marin Intl. Airport (SJU) aren't available daily, so you'll have to take a flight with a layover. Explore your options with our filter tool. Enter your travel details and pick either "1 Stop" or "2+ Stops."
What day of the week has the most flights from DLH to SJU?
You'll generally find Tuesday the quietest day for flights, while Fridays tend to be the busiest.* However this can vary from season to season and during peak travel times or public holidays.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Duluth Intl. Airport (DLH) to Luis Munoz Marin Intl. Airport (SJU)?
Opt for a flight from Duluth Intl. Airport (DLH) to Luis Munoz Marin Intl. Airport (SJU) that leaves before 3 PM to reduce the likelihood of delays and cancellations. Later departures have a 22% higher chance of being canceled, on average.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Duluth Intl. Airport (DLH) to Luis Munoz Marin Intl. Airport (SJU) last-minute?
Waiting until just before your departure to book a ticket from DLH to SJU generally means paying more. While you may come across some last-minute offers, there's no guarantee. Keep your travel schedule open for the best chance of scoring a bargain.
Can I cancel or change the date of my flight from Duluth Intl. Airport (DLH) to Luis Munoz Marin Intl. Airport (SJU)?
It's generally possible to reschedule or cancel your DLH to SJU flight. However, if it's been more than 24 hours since booking, additional charges may apply. Refer to your airline's policies in your itinerary to see what changes are allowed and whether any costs are involved. You'll also find more information on our Customer Service portal.

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*Available to One Key members.