What are the cheapest airlines flying from Duluth to San Juan round-trip?

Flying on Delta is currently your cheapest option to San Juan, with prices starting at $681. Another option worth looking into is United Airlines, starting at $695 round trip.

What is the cheapest month to book a flight from Duluth to San Juan?

Currently, September is the cheapest month in which you can book a flight from Duluth to San Juan (average of $254). Flying from Duluth to San Juan in June is currently the most expensive (average of $339). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest day to fly from Duluth to San Juan?

Travelers seeking maximum savings on their Duluth to San Juan flight should consider departing on Wednesday mornings when fares are most often at their lowest. Wednesday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

In terms of precipitation, rainfall in San Juan ranges from 2.2 - 6.1 inches per month. November is typically the wettest month, when rainfall can reach 6.1 in. February is typically the driest time to visit San Juan when rainfall is around 2.2 in.

If weather is an important factor for your trip to San Juan, use this chart to help with planning. For those seeking warmer temperatures, June is the ideal time of year to visit, when temperatures reach an average of 82.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 77.0 F).

What is the cheapest day to fly round-trip from Duluth to San Juan?

Leaving on a Friday is a viable option for saving on travel. Heavily demanded days of the week can typically drive up the prices you see. Booking your travel for a less competitive day can save up to 40% on the overall cost on flights from Duluth to San Juan.

What is the cheapest time of day to fly from DLH to SJU?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Duluth to San Juan as you normally would.

What airport do you fly from for flights from Duluth to San Juan?

Located just 5.8 mi from the city center, Duluth Intl is the airport most travelers will use when flying to San Juan from Duluth. Booking flights from Duluth Intl (DLH) to San Juan should be relatively easy as there are 0 daily outbound flights to San Juan from 2 different airlines.

Can I find deals for flights from Duluth to San Juan that include hotel bookings?

Yes. In addition to deals on Duluth to San Juan flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Duluth to San Juan?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Duluth to San Juan.

Can I find deals for business class flights from Duluth to San Juan?

Yes. Cheapflights offers flight deals from Duluth to San Juan by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$455+ Flights from Duluth to San Juan

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Cheap flight deals from Duluth to San Juan

Round-trip from	$681 (Delta)
One-way from	$455 (United Airlines)

From Duluth Intl to San Juan

Search Deals

One-way flight from Duluth Intl to San Juan

Search Deals

Find flight deals from Duluth to San Juan

Cheapest flights from Duluth to San Juan
Explore the most affordable flight options available from Duluth to San Juan. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 29, 2025.

Wed 12/105:10 amDLH - SJU

2 stops10h 00mDelta

Sat 12/137:30 amSJU - DLH

2 stops14h 04mDelta

Deal found 7/28

$681

Mon 12/87:55 amDLH - SJU

2 stops14h 41mUnited Airlines

Tue 12/92:05 amSJU - DLH

2 stops14h 17mUnited Airlines

Deal found 7/27

$695

Best flights from Duluth to San Juan
Discover carefully curated flight deals from Duluth to San Juan that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 29, 2025.

Wed 12/105:10 amDLH - SJU

2 stops10h 00mDelta

Sat 12/137:30 amSJU - DLH

2 stops14h 04mDelta

Deal found 7/28

$681

Mon 12/87:55 amDLH - SJU

2 stops14h 41mUnited Airlines

Tue 12/92:05 amSJU - DLH

2 stops14h 17mUnited Airlines

Deal found 7/27

$695

Last-minute flights from Duluth to San Juan
Discover last-minute flight deals from Duluth to San Juan. Data last updated July 29, 2025 and is based on user searches.

Sat 8/98:00 amDLH - SJU

1 stop14h 54mUnited Airlines

Sat 8/163:56 pmSJU - DLH

1 stop19h 55mUnited Airlines

Deal found 7/27

$1,102

One-way flights from Duluth to San Juan
Search for one-way flight options from Duluth to San Juan. Find affordable one-way fares based on user searches. Data last updated July 29, 2025.

Fri 11/73:06 pmDLH - SJU

2 stops29h 16mUnited Airlines

Deal found 7/29

$455

Fly from

Fly to

Route

Depart

Return

Price

DuluthSan Juan

DLH - SJU

DLHSJU

Duluth Intl

Wed 12/10

5:10 am-5:10 pm

2 stops10h 00m

San Juan Luis Munoz Marin Intl

Sat 12/13

7:30 am-7:34 pm

2 stops14h 04m

$681

DuluthSan Juan

DLH - SJU

DLHSJU

Duluth Intl

Mon 12/8

7:55 am-12:36 am

2 stops14h 41m

San Juan Luis Munoz Marin Intl

Tue 12/9

2:05 am-2:22 pm

2 stops14h 17m

$695

DuluthSan Juan

DLH - SJU

DLHSJU

Duluth Intl

Fri 11/7

3:06 pm-10:22 pm

2 stops29h 16m

$455

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/29

Best time to book a flight from Duluth to San Juan

Have a flexible travel schedule? Discover the best time to fly to San Juan from Duluth with our price prediction graph.

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Duluth to San Juan

No data available for this route at this time. Please check back soon.

Reviews of airlines servicing San Juan

Read reviews from past customers who have flown Delta and United Airlines from Duluth to San Juan. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very good

7,977 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Delta

8.0

Very good

7,977 reviews

Delta

8.0

Very good

7,977 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

United Airlines

7.4

Good

8,899 reviews

Delta

8.0

Very good

7,977 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

What airport do you fly from for flights from Duluth to San Juan?
Located just 5.8 mi from the city center, Duluth Intl is the airport most travelers will use when flying to San Juan from Duluth. Booking flights from Duluth Intl (DLH) to San Juan should be relatively easy as there are 0 daily outbound flights to San Juan from 2 different airlines.
What are the cheapest airlines flying from Duluth to San Juan round-trip?
Flying on Delta is currently your cheapest option to San Juan, with prices starting at $681. Another option worth looking into is United Airlines, starting at $695 round trip.
Can I find deals for flights from Duluth to San Juan that include hotel bookings?
Yes. In addition to deals on Duluth to San Juan flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Duluth to San Juan?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Duluth to San Juan.
Can I find deals for business class flights from Duluth to San Juan?
Yes. Cheapflights offers flight deals from Duluth to San Juan by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Duluth to San Juan?
Currently, September is the cheapest month in which you can book a flight from Duluth to San Juan (average of $254). Flying from Duluth to San Juan in June is currently the most expensive (average of $339). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Top 2 airlines flying from Duluth to San Juan

Airline	Cheapest	Average	Flexibility	On-time
Delta	Cheapest$394	Average$809	FlexibilityNo cancel fee	On-timeN/A
United Airlines	Cheapest$544	Average$949	FlexibilityNo cancel fee	On-time69%

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$455+ Cheap flights from Duluth (DLH) to San Juan

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/7. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Duluth to San Juan with Cheapflights

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2. Select your favorite providers

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Cheap flight deals from Duluth to San Juan

Round-trip from

One-way from

Find flight deals from Duluth to San Juan

Cheapest flights from Duluth to San JuanExplore the most affordable flight options available from Duluth to San Juan. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 29, 2025.

Explore the most affordable flight options available from Duluth to San Juan. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 29, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Duluth to San Juan that are best for you.

Best time to book a flight from Duluth to San Juan

Have a flexible travel schedule? Discover the best time to fly to San Juan from Duluth with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Duluth to San Juan

Reviews of airlines servicing San Juan

Read reviews from past customers who have flown Delta and United Airlines from Duluth to San Juan. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Duluth to San Juan. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What airport do you fly from for flights from Duluth to San Juan?

What are the cheapest airlines flying from Duluth to San Juan round-trip?

Can I find deals for flights from Duluth to San Juan that include hotel bookings?

How can I find direct flights from Duluth to San Juan?

Can I find deals for business class flights from Duluth to San Juan?

What is the cheapest month to book a flight from Duluth to San Juan?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Duluth to San Juan

See prices for flight routes from nearby airports that may be better suited for you.

Top 2 airlines flying from Duluth to San Juan

100% Free

Book with Flexibility

Travel Smart

Cheapest flights from Duluth to San Juan
Explore the most affordable flight options available from Duluth to San Juan. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 29, 2025.