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San Juan

$530+ Cheap flights from Duluth (DLH) to San Juan

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/1. Fares are subject to change and may not be available on all flights or dates of travel.
DLH — SJU
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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Cheap flight deals from Duluth to San Juan

Discover tips and strategies to find the most affordable flight options for your journey from Duluth (DLH) to San Juan (PR1). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated September 11, 2025.

Round-trip from

$530
(Delta)
From Duluth Intl to San Juan
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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 September 11, 2025.

This Delta deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/75:00 amDLH - SJU
2 stops10h 19mDelta
Wed 12/107:15 amSJU - DLH
2 stops10h 29mDelta
Deal found 9/9$598
This Delta deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/88:05 amDLH - SJU
2 stops13h 05mDelta
Wed 12/107:15 amSJU - DLH
2 stops10h 29mDelta
Deal found 9/10$605
This United Airlines deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/77:55 amDLH - SJU
1 stop11h 05mUnited Airlines
Tue 12/92:05 amSJU - DLH
2 stops14h 17mUnited Airlines
Deal found 9/9$718
This United Airlines deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/107:55 amDLH - SJU
2 stops14h 41mUnited Airlines
Sat 12/138:10 amSJU - DLH
1 stop15h 49mUnited Airlines
Deal found 9/11$725
This United Airlines deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/87:55 amDLH - SJU
1 stop11h 05mUnited Airlines
Wed 12/108:10 amSJU - DLH
1 stop8h 12mUnited Airlines
Deal found 9/10$732

Cheapflights Fare Finder

 
Customize your flight search to find flights from Duluth 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, Cheapflights users made 2,558,603 searches. Data last updated September 11, 2025.
Use the filters below to find and compare flights from Duluth to San Juan that are best for you.

Fly from

Duluth

Fly to

San Juan

Route

Depart

Return

Price

DuluthSan Juan

DLH - SJU

DLHSJU

Duluth Intl

Sun 2/1

5:10 am-3:20 pm

1 stop8h 10m

San Juan Luis Munoz Marin Intl

Wed 2/25

4:25 pm-11:52 pm

1 stop9h 27m

$530

DuluthSan Juan

DLH - SJU

DLHSJU

Duluth Intl

Sun 12/7

5:00 am-5:19 pm

2 stops10h 19m

San Juan Luis Munoz Marin Intl

Wed 12/10

7:15 am-3:44 pm

2 stops10h 29m

$598

DuluthSan Juan

DLH - SJU

DLHSJU

Duluth Intl

Mon 12/8

8:05 am-11:10 pm

2 stops13h 05m

San Juan Luis Munoz Marin Intl

Wed 12/10

7:15 am-3:44 pm

2 stops10h 29m

$605

DuluthSan Juan

DLH - SJU

DLHSJU

Duluth Intl

Sun 2/1

5:10 am-3:20 pm

1 stop8h 10m

San Juan Luis Munoz Marin Intl

Sat 2/28

6:15 am-7:37 pm

2 stops15h 22m

$610

DuluthSan Juan

DLH - SJU

DLHSJU

Duluth Intl

Sun 2/1

5:10 am-3:20 pm

1 stop8h 10m

San Juan Luis Munoz Marin Intl

Thu 2/26

6:15 am-3:24 pm

2 stops11h 09m

$620

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

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

Get insights into the airlines that provide service to San Juan. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to San Juan. Reviews last updated September 11, 2025.
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
7,960 reviews

Boarding

8.2

Overall

8.0

Entertainment

7.9

Food

7.3

Crew

8.5

Comfort

7.9

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
7,960 reviews
Delta
8.0
Very good
7,960 reviews

Boarding

8.2

Overall

8.0

Entertainment

7.9

Food

7.3

Crew

8.5

Comfort

7.9

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
8,937 reviews
Delta
8.0
Very good
7,960 reviews

Boarding

8.2

Overall

8.0

Entertainment

7.9

Food

7.3

Crew

8.5

Comfort

7.9

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

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?

    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.

  • How long is the flight from Duluth to San Juan?

    A quick flight from Duluth to San Juan can take about 8h 10m. Delta provides one of the quickest options available for as low as $530. Airlines will cover a distance of 2459 mi.

  • 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 $435. Another option worth looking into is United Airlines, starting at $544 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

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Top 2 airlines flying from Duluth to San Juan

Discover the top 2 airlines that operate flights from Duluth to San Juan. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$435Average$684FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$544Average$949FlexibilityNo cancel feeOn-time69%

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