On this page, you can find and book flights from Denver to San Juan. The distance between the cities is approximately 4415 km, with 3 flights per week currently scheduled.
United Airlines (UA) is the main carrier on this route. Ticket prices are dynamic, so we recommend using the low-price calendar and checking information on how to get to Denver airport and reach the city center upon arrival in San Juan.
Below is a calendar of the lowest flight ticket prices for Denver — San Juan by day. Pick a convenient date and instantly see the fare. The cheapest flights on this route start from $177 in ,, and the most expensive are around $268 in b. If your travel dates are flexible, the calendar will help you find the best price for your preferred period. To view round-trip fares, switch to the "Round trip" tab above the calendar, select your departure date — and the right-hand calendar will highlight the lowest prices for return flights on each day.
Denver → San Juan, average one-way price
| Month | Average price | Level | Month | Average price | Level | Month | Average price | Level |
|---|---|---|---|---|---|---|---|---|
| Jan | $384 | high | May | $343 | medium | Sep | $182 | low |
| Feb | $464 | high | Jun | $373 | medium | Oct | $272 | medium |
| Mar | $389 | high | Jul | $227 | low | Nov | $384 | high |
| Apr | $394 | high | Aug | $182 | low | Dec | $283 | medium |
Some values are estimated based on seasonality.
The climate in San Juan remains hot year-round: peak temperatures are recorded in August (up to 30.3°C), while February is considered the coolest month, with daily lows around 21.8°C. The period from September to November is characterized by high humidity and frequent precipitation, peaking in September.
From a budget perspective, the most cost-effective time to plan your trip is July, when ticket prices start $197. The highest airfares are typically seen in November, with rates starting $268.
July can be an optimal choice for balancing cost and weather, provided you don't mind the tropical heat. To avoid prolonged downpours without overpaying, we recommend monitoring price trends during the shoulder seasons and avoiding peak dates in late autumn.
Air service between Denver and San Juan is primarily provided by US carriers, with United Airlines playing a leading role. An average of 3 flights per week operate on this route, including both direct flights and convenient connecting options. Detailed information on departure days, travel times, and specific aircraft can be found in the interactive list below.
Flights Denver — San Juan depart from Denver International Airport and Centennial Airport and arrive at Luis Muñoz Marín International Airport. Below are pages for the cities, countries, and airports on the route: airlines, schedules, and travel guides.
With a distance of 4415 km, a direct flight takes approximately 5.5–6 hours. If you choose a connecting flight, the travel time will increase depending on the duration of the layover at the hub airport.
The primary carrier operating regular flights between Denver and San Juan is United Airlines (UA). An up-to-date list of all available flights is provided below on this page.
Yes, there are direct flights on this route; however, the schedule may be limited to 3 flights per week. Availability of non-stop flights for specific dates should be checked using the search form.
Flight prices change constantly based on the season, demand, and how far in advance you book. You can see the current lowest price in the low-price calendar.
All flights from Denver land at Luis Muñoz Marín International Airport (SJU) in San Juan, which serves as the island's main transportation hub.
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