$313 Find Cheap Flights from Duluth to Puerto Rico - Compare and Save

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 10/17. 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

Sat, Sep 12 - Wed, Sep 16
United Airlines Logo
11:18 am - 11:50 pm
DLH
-
SJU
11h 32m
2 stops
United Airlines Logo
3:56 pm - 11:10 pm
SJU
-
DLH
8h 14m
1 stop
$576United Airlines
Sat, Sep 12 - Tue, Sep 15
United Airlines Logo
11:18 am - 11:50 pm
DLH
-
SJU
11h 32m
2 stops
United Airlines Logo
1:00 am - 10:42 am
SJU
-
DLH
10h 42m
2 stops
$621United Airlines
Sat, Sep 12 - Wed, Sep 16
United Airlines Logo
6:32 pm - 2:44 pm
DLH
-
SJU
19h 12m
1 stop
United Airlines Logo
3:56 pm - 11:10 pm
SJU
-
DLH
8h 14m
1 stop
$732United Airlines
Sat, Sep 12 - Wed, Sep 16
United Airlines Logo
6:32 pm - 2:44 pm
DLH
-
SJU
19h 12m
1 stop
United Airlines Logo
3:56 pm - 11:10 pm
SJU
-
DLH
8h 14m
1 stop
$777United Airlines
Sat, Nov 14 - Sat, Nov 21
United Airlines Logo
7:35 am - 10:22 pm
DLH
-
SJU
12h 47m
2 stops
United Airlines Logo
8:05 am - 5:32 pm
SJU
-
DLH
11h 27m
2 stops
$1,123United Airlines
Sat, Nov 14 - Sat, Nov 21
United Airlines Logo
7:35 am - 9:00 pm
DLH
-
SJU
11h 25m
1 stop
United Airlines Logo
8:25 am - 2:33 pm
SJU
-
DLH
8h 08m
1 stop
$1,304United Airlines
Sat, Oct 24 - Tue, Oct 27
United Airlines Logo
6:00 am - 6:30 pm
DLH
-
VQS
11h 30m
2 stops
United Airlines Logo
7:30 am - 2:33 pm
VQS
-
DLH
32h 03m
2 stops
$5,476United 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.

What is the cheapest month to fly from Duluth to Puerto Rico?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Duluth to Puerto Rico, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Duluth to Puerto Rico is June, when tickets cost $0 (return) on average. On the other hand, the most expensive months are March and July, when the average cost of round-trip tickets is $1,539 and $1,254 respectively.

Good to know

Low season

November

Cheapest flight

$313
Best time to beat the crowds with an average 40% drop in price.
Most popular time to fly and prices are also 27% lower on average.
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 10026 reviews
7.3Comfort
8.1Crew
6.6Food
7.7Boarding
7.1Entertainment
Airline reviews

Staff on the plane was incredible. Check-in was very complicated with no staff to help at the airport. I was charged for a second bag even though my ticket says 2 bags are free

10.0 ExcellentAnonymous, Jul 2026
EWR - JNB
Read more United Airlines reviews

Staff on the plane was incredible. Check-in was very complicated with no staff to help at the airport. I was charged for a second bag even though my ticket says 2 bags are free

Flight be on time would be a good start. Then train your flight attendants to be attentive and friendly. This time they completely forgot my row for the measly snack! United, do better!

The Wi-Fi did not work, so you weren't able to watch entertainment on your own device. They did not have wired headphones so you couldn't watch it on the in-seat entertainment screen either. There was plenty of time to do a drink and snag service but the flight attendants chose not to.

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