$293 Find Cheap Flights from Duluth to Puerto Rico

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Duluth to Puerto Rico departing on 10/21. 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

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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

Mon, Aug 10 - Wed, Aug 19
Delta Logo
5:15 am - 4:33 pm
DLH
-
SJU
10h 18m
2 stops
Delta Logo
12:56 pm - 10:41 pm
SJU
-
DLH
10h 45m
2 stops
$511Delta
Sat, Oct 24 - Tue, Oct 27
United Airlines Logo
6:00 am - 2:44 pm
DLH
-
SJU
7h 44m
1 stop
United Airlines Logo
1:05 am - 2:33 pm
SJU
-
DLH
14h 28m
2 stops
$586United Airlines
Sat, Oct 31 - Tue, Nov 3
United Airlines Logo
7:35 am - 9:22 pm
DLH
-
SJU
12h 47m
2 stops
United Airlines Logo
2:05 am - 2:33 pm
SJU
-
DLH
14h 28m
2 stops
$621United Airlines
Sat, Oct 31 - Wed, Nov 4
United Airlines Logo
7:35 am - 11:36 pm
DLH
-
SJU
15h 01m
2 stops
United Airlines Logo
8:25 am - 2:33 pm
SJU
-
DLH
8h 08m
1 stop
$631United Airlines
Sat, Aug 15 - Fri, Aug 21
United Airlines Logo
6:23 pm - 3:42 pm
DLH
-
SJU
20h 19m
2 stops
United Airlines Logo
2:20 pm - 10:42 am
SJU
-
DLH
21h 22m
2 stops
$646United Airlines
Sat, Aug 15 - Thu, Aug 20
United Airlines Logo
6:23 pm - 3:42 pm
DLH
-
SJU
20h 19m
2 stops
United Airlines Logo
3:56 pm - 5:34 pm
SJU
-
DLH
26h 38m
1 stop
$654United Airlines
Wed, Aug 12 - Fri, Aug 21
United Airlines Logo
6:23 pm - 8:38 pm
DLH
-
SJU
25h 15m
2 stops
United Airlines Logo
2:20 pm - 10:42 am
SJU
-
DLH
21h 22m
2 stops
$665United Airlines
Sat, Aug 15 - Tue, Aug 18
United Airlines Logo
7:45 am - 8:38 pm
DLH
-
SJU
11h 53m
2 stops
United Airlines Logo
3:56 pm - 11:22 pm
SJU
-
DLH
8h 26m
1 stop
$666United Airlines
Wed, Aug 12 - Thu, Aug 20
United Airlines Logo
6:23 pm - 8:38 pm
DLH
-
SJU
25h 15m
2 stops
United Airlines Logo
3:56 pm - 5:34 pm
SJU
-
DLH
26h 38m
1 stop
$673United Airlines
Sat, Oct 31 - Wed, Nov 4
United Airlines Logo
7:35 am - 8:24 pm
DLH
-
SJU
11h 49m
2 stops
United Airlines Logo
8:25 am - 2:33 pm
SJU
-
DLH
8h 08m
1 stop
$676United Airlines
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.

Which airlines provide the cheapest flights from Duluth to Puerto Rico?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 5 days.

In the past 5 days, the cheapest round-trip tickets from Duluth to Puerto Rico were found on Delta ($511) and United Airlines ($586).

Good to know

Cheapest flight$293
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.
7.4
United AirlinesOverall score based on 9894 reviews
7.1Entertainment
7.3Comfort
7.7Boarding
6.6Food
8.1Crew
Airline reviews

Great staff. Clean plane, but we were delayed for more than an hour due to maintenance issues and had to board another plane.

8.0 ExcellentNico, Jun 2026
LAX - HNL
Read more United Airlines reviews

Great staff. Clean plane, but we were delayed for more than an hour due to maintenance issues and had to board another plane.

I was very disappointed with my experience at the United Airlines baggage check. The representative was rude and unhelpful. I was required to remove approximately 1.5 pounds from my two checked bags, even though it was a very small amount over the limit. The interaction was unnecessarily unpleasant, and I expected much better customer service. I hope United will review this incident and provide additional customer service training to its staff.

No extra snacks were available. Meals quality is terrible. Crew was not friendly.

Late- that’s what United does best. Missed my connection, rebooked to a flight 17 hours later and had to spend $500 on a hotel. What did I get? A $15 meal voucher. What can you get in an airport for $15. I hate United so much.

Standard flight with a drinks and a snack- overall very quick flight. The flight attendants were very strict, bordered on rude.

The aircrew was solid, the flight was chill, I had no issues. The gate agent was not the best. I was trying to use a military bag upgrade to move my bag from under the seat to the overhead bins and he told me there’s no overhead bins on the plane, argued with me why booking put a military member in basic economy (I don’t really understand this) and made it an issue to even try to help me stating I’d have to call reservations to get a bag upgrade. When every other agent with United can add it at the gate, this man couldn’t be bothered.

My flight was completely full. Making me very stressful with people walking around all the time. I believe airlines can do better for entertain people during the flight.

They did get us booked on a later flight, but it made us miss our connecting flight. So, we had to stay and another state overnight with no luggage or clothes. Because they kept our luggage at airport for next flight on the next day.

The United website was easy to use and had all the information I needed. I needed to change my flight and it was accomplished easily on line. I was also easily able to upgrade and for a reasonable price. Boarding went smoothly and the flight was in time. The service was good in board but the crew did not seem happy at all. Limited availability of meals - not much choice for purchase and in business class they ran out of one of the meal choices by row 4. .

Loading was quick and efficient. The bate and switch with discount tickets were you are forced to pay for bag.

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

Information on your arrival and departure airports