$416 Find Cheap Flights from Duluth to Puerto Rico

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Duluth to Puerto Rico departing on 4/7. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Puerto Rico

Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 23% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Flight Deals
Booking Insights
Flight Deals

Book Cheap Duluth to Puerto Rico Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Duluth to Puerto Rico that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Duluth to Puerto Rico

Tue, Apr 7 - Tue, Apr 21
United Airlines Logo
7:45 am - 8:38 pm
DLH
-
SJU
11h 53m
2 stops
United Airlines Logo
7:20 am - 6:09 pm
SJU
-
DLH
11h 49m
2 stops
$416United Airlines
Tue, Apr 7 - Tue, Apr 21
United Airlines Logo
11:19 am - 8:34 pm
DLH
-
SJU
8h 15m
1 stop
United Airlines Logo
7:20 am - 6:09 pm
SJU
-
DLH
11h 49m
2 stops
$442United Airlines
Tue, Apr 7 - Mon, Apr 20
United Airlines Logo
7:45 am - 9:24 pm
DLH
-
SJU
12h 39m
2 stops
United Airlines Logo
1:00 am - 2:27 pm
SJU
-
DLH
14h 27m
2 stops
$443United Airlines
Tue, Apr 7 - Tue, Apr 21
United Airlines Logo
7:45 am - 9:24 pm
DLH
-
SJU
12h 39m
2 stops
United Airlines Logo
7:40 am - 2:27 pm
SJU
-
DLH
7h 47m
1 stop
$457United Airlines
Tue, Apr 7 - Tue, Apr 21
United Airlines Logo
11:19 am - 8:34 pm
DLH
-
SJU
8h 15m
1 stop
United Airlines Logo
7:40 am - 2:27 pm
SJU
-
DLH
7h 47m
1 stop
$482United Airlines
Tue, Apr 7 - Tue, Apr 21
United Airlines Logo
11:19 am - 8:34 pm
DLH
-
SJU
8h 15m
1 stop
United Airlines Logo
7:40 am - 2:27 pm
SJU
-
DLH
7h 47m
1 stop
$484United Airlines
Wed, Apr 8 - Wed, Apr 22
United Airlines Logo
11:19 am - 8:34 pm
DLH
-
SJU
8h 15m
1 stop
United Airlines Logo
7:40 am - 2:27 pm
SJU
-
DLH
7h 47m
1 stop
$611United Airlines
Tue, May 5 - Thu, May 7
United Airlines Logo
11:14 am - 8:34 pm
DLH
-
SJU
8h 20m
1 stop
United Airlines Logo
7:20 am - 5:35 pm
SJU
-
DLH
11h 15m
2 stops
$626United Airlines
Wed, Feb 25 - Tue, Mar 3
Delta Logo
5:00 am - 4:50 pm
DLH
-
SJU
9h 50m
2 stops
Delta Logo
4:30 pm - 11:55 pm
SJU
-
DLH
9h 25m
1 stop
$746Delta
Thu, Feb 26 - Tue, Mar 3
Delta Logo
5:00 am - 3:18 pm
DLH
-
SJU
8h 18m
1 stop
Delta Logo
4:30 pm - 11:55 pm
SJU
-
DLH
9h 25m
1 stop
$766Delta
Booking Insights

KAYAK's insights & trends for Duluth to Puerto Rico flights

Get data-powered insights and trends into flights from Duluth to Puerto Rico to help you find the cheapest flights, the best time to fly and much more.

How long does a flight from Duluth to Puerto Rico take?

The duration of a flight to Puerto Rico depends on your arrival airport. The shortest routes to Puerto Rico from Duluth are to San Juan, which takes 8h 15m, and San Juan Luis Munoz Marin Intl Airport, which takes 30h 55m.

Good to know

Cheapest flight$416
Flight from Duluth to San Juan

FAQs - booking Puerto Rico flights

  • How does KAYAK find such low prices on flights from Duluth to Puerto Rico?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Duluth to Puerto Rico.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Duluth to Puerto Rico?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Duluth to Puerto Rico is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Duluth to Puerto Rico?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Duluth to Puerto Rico with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Duluth to Puerto Rico?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Duluth to Puerto Rico up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from Duluth to Puerto Rico

 
Need help choosing which airline to fly with from Duluth to Puerto Rico? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.9
DeltaOverall score based on 8176 reviews
8.1Boarding
7.2Food
8.5Crew
7.8Entertainment
7.9Comfort
Airline reviews

This was one of the worst flights I’ve been on in years. I upgraded to comfort and had such an uncomfortable experience. The person next to me was oversized - which I understand - however, they took up their space and mine. I could only use about 50% of my seat space to not be physically touching this person the entire flight and there was no spatial awareness. I also could not use the seat outlet because their body was obstructing it. It was very inconvenient. Their body kept touching me repeatedly during the flight and I felt very uncomfortable. To pay more for an upgraded space and then not even being able to use it was highly disappointing.

2.0 MediocreMichael, Feb 2026
ORD - LGA
Read more Delta reviews

This was one of the worst flights I’ve been on in years. I upgraded to comfort and had such an uncomfortable experience. The person next to me was oversized - which I understand - however, they took up their space and mine. I could only use about 50% of my seat space to not be physically touching this person the entire flight and there was no spatial awareness. I also could not use the seat outlet because their body was obstructing it. It was very inconvenient. Their body kept touching me repeatedly during the flight and I felt very uncomfortable. To pay more for an upgraded space and then not even being able to use it was highly disappointing.

No wheel chair as requested at Atlanta arrival on first flight.

Only freetext wifi was available in flight; browsing WiFi required payment. Since the seats had no in flight entertainment, Delta should revisit this policy on this longer flight.

Only water, tea or coffee served midflight, even to comfort seating. Man next to me needed two seats and took up a portion of my seat and Delta did nothing.

The flight was great as well as the airline staff

First class and monitors weren’t working for mine & my husbands. Eventually fixed, but quite annoyed as we bought first class. Also, No foot rests.

Prior to takeoff, the pilot told us there was a possibility of not being able to land and going to Portland. Well that happened, we took off and then did 8 loops around Spokane before the pilot told us we ran out of fuel and had to go to Portland. So for a 35 minute flight we have now been on the plane for 3 hours (boarded at 6:50 am and landed in Portland at 10:30). Then, we just sat in Portland's airport with no updates of when we can start heading back. All of a sudden, our pilots and crew just left, leaving us stranded in a different city and state. We continued to sit in Portland until we finally got a new crew assigned and boarded the plane (This was from 10:30-2). We then sat on the plane for an additional hour before take off because they had to count us multiple times. We finally landed in Spokane at 3:55 PM. So a flight that should have taken at max an hour took us 10 hours and we missed the majority of the recruiting event we went for.

It was delayed but other than that it was great.

Got on the plane and sat there for an hour before departure.

Second flight in a row where the entertainment system is broken. 5 hour long flight with no entertainment and flight attendants did not seem interested in resolving the matter. Very shocked to be treated this poorly considering I paid for a first class experience and have Diamond Medallion status.

Everything you need to know for your flight from Duluth to Puerto Rico

Information on your arrival and departure airports