Cheap Flights from Denver, CO to San Juan from $233

Return flight: San Juan – Denver
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On Cheapflightsplus.com you will find 97 connecting flights from Denver to San Juan. You can compare airfare deals from 7 airlines and multiple travel sites from $233, book and save on cheap plane tickets and last minute offers. Also check out DEN-SJU flight schedule to find best flight time, convenient departure and arrival airports.

Find One-Way and Round-Trip Denver to San Juan Flight Deals

To find the cheapest one way airline ticket select the date with the lowest price on the calendar below and click «Find Flights». To search for round-trip flight deals click on the link «Check prices for return flights» and select the date of the return flight. Cheapest flights in November: $233 (one-way), $400 (round-trip).
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Best Flights from Denver to San Juan Today

Take a look at the list of non stop flights and flights with layovers from Denver to San Juan with the lowest price of $233. Take a look at the list of flights with layovers from Denver to San Juan from $233. There’re no direct flights. The fastest connecting flight – 8h 27m.
Price Departure Arrival Flight Duration Airline Flight
from $233
Find flight
20:31
Denver
Denver International
 20:38+1 день
San Juan
Luis Munoz Marin Intl
 22h 7m
layover
15h 8m - Houston
 United Airlines
UA2419
UA701
from $302
Find flight
23:59
Denver
Denver International
 17:50+1 день
San Juan
Luis Munoz Marin Intl
 15h 51m
layover
9h 6m - Tampa
 Frontier Airlines
F91114
F92216
from $302
Find flight
21:00
Denver
Denver International
 23:57+2 дня
San Juan
Luis Munoz Marin Intl
 24h 57m
layover
10h 27m - Chicago
6h 28m - Orlando
 Frontier Airlines
F92210
F93854
NK2804
from $364
Find flight
00:54
Denver
Denver International
 02:03+1 день
San Juan
Luis Munoz Marin Intl
 23h 9m
layover
2h 11m - Atlanta
11h 25m - Newark
 Frontier Airlines
F93294
F94348
F93573
Show all tickets
*Departure and arrival times - local. Prices indicated for one-way flights. Information updated on September 16, 2025
Full flight schedule will help you in detecting at what time planes fly from Denver to San Juan. You can also specify the concrete flights and airlines on the route and how long the flight actually is. Use the calendar for today, tomorrow or other specific date as some flights are available only on certain days of the week.
Departure Arrival Flight Details Flight Duration Price
00:19 — 02:50
+1 day
00:19 — 06:00 F91734 Frontier Airlines
Denver — Orlando
17h 51m stop
23:51 — 02:50 F94726 Frontier Airlines
Orlando — San Juan
24h 31m
including layover
Find flight
from$307
00:34 — 20:02
00:34 — 06:30 F93138 Frontier Airlines
Denver — Miami
10h 37m stop
17:07 — 20:02 F92284 Frontier Airlines
Miami — San Juan
17h 28m
including layover
Find flight
from$331
00:54 — 14:26
00:54 — 06:05 F93294 Frontier Airlines
Denver — Atlanta
4h 28m stop
10:33 — 14:26 F92082 Frontier Airlines
Atlanta — San Juan
11h 32m
including layover
Find flight
from$331
06:00 — 23:43
+1 day
06:00 — 11:34 F92748 Frontier Airlines
Denver — Tampa
8h 58m stop
20:32 — 23:43 F92216 Frontier Airlines
Tampa — San Juan
15h 43m
including layover
Find flight
from$331
06:00 — 02:03
+2 days
06:00 — 11:34 F92748 Frontier Airlines
Denver — Tampa
19h 41m stop
07:15 — 10:10 F94058 Frontier Airlines
Tampa — Newark
11h 50m stop
22:00 — 02:03 F93573 Frontier Airlines
Newark — San Juan
42h 3m
including layover
Find flight
from$337
19:10 — 14:44
+1 day
19:07 — 22:41 UA2258 United Airlines
Denver — Chicago
10h 10m stop
08:49 — 14:44 UA1996 United Airlines
Chicago — San Juan
17h 34m
including layover
Find flight
from$305
20:31 — 20:38
+1 day
20:27 — 23:55 UA2419 United Airlines
Denver — Houston
15h 8m stop
15:02 — 20:38 UA701 United Airlines
Houston — San Juan
22h 7m
including layover
Find flight
from$233
20:56 — 19:08
+1 day
20:56 — 01:44 F91752 Frontier Airlines
Denver — Covington
6h 16m stop
08:00 — 10:12 F91714 Frontier Airlines
Covington — Orlando
5h 48m stop
16:00 — 19:08 F93506 Frontier Airlines
Orlando — San Juan
20h 12m
including layover
Find flight
from$341
21:00 — 23:57
+2 days
21:00 — 00:24 F92210 Frontier Airlines
Denver — Chicago
10h 27m stop
10:51 — 14:34 F93854 Frontier Airlines
Chicago — Orlando
6h 28m stop
21:02 — 23:57 NK2804 Spirit Airlines
Orlando — San Juan
24h 57m
including layover
Find flight
from$302
21:00 — 08:59
+2 days
21:00 — 00:24 F92210 Frontier Airlines
Denver — Chicago
10h 27m stop
10:51 — 14:34 F93854 Frontier Airlines
Chicago — Orlando
15h 26m stop
06:00 — 08:59 F91824 Frontier Airlines
Orlando — San Juan
33h 59m
including layover
Find flight
from$307
21:00 — 02:50
+2 days
21:00 — 00:24 F92210 Frontier Airlines
Denver — Chicago
10h 27m stop
10:51 — 14:34 F93854 Frontier Airlines
Chicago — Orlando
9h 17m stop
23:51 — 02:50 F94726 Frontier Airlines
Orlando — San Juan
27h 50m
including layover
Find flight
from$320
21:00 — 08:59
+2 days
21:00 — 00:24 F92210 Frontier Airlines
Denver — Chicago
19h 22m stop
19:46 — 23:52 F92792 Frontier Airlines
Chicago — Orlando
6h 8m stop
06:00 — 08:59 F91824 Frontier Airlines
Orlando — San Juan
33h 59m
including layover
Find flight
from$359
23:54 — 13:45
+1 day
23:54 — 05:36 UA1745 United Airlines
Denver — Newark
4h 9m stop
09:44 — 13:45 UA1556 United Airlines
Newark — San Juan
11h 51m
including layover
Find flight
from$329
23:54 — 23:57
+2 days
23:54 — 05:36 UA1745 United Airlines
Denver — Newark
14h 19m stop
19:53 — 23:57 UA1543 United Airlines
Newark — San Juan
22h 3m
including layover
Find flight
from$352
23:59 — 17:50
+1 day
23:59 — 05:31 F91114 Frontier Airlines
Denver — Tampa
9h 6m stop
14:37 — 17:50 F92216 Frontier Airlines
Tampa — San Juan
15h 51m
including layover
Find flight
from$302
*Departure and arrival times - local. Updated on September 16, 2025

Flight Information

Below we will explain in detail what the flights cost on the destination from Denver to San Juan depends on and how to choose the most interesting flight option for you.

Distance between Denver and San Juan is 4396 miles. Time difference between the cities is 3h. Airplanes depart 00:19 to 23:59 from 2 Denver airports and arrive 00:19 to 23:59 to 2 San Juan airports. Average flight time is 17h 34m.

  • The fastest flight 8h 27m
  • Average flight time 17h 34m
  • The earliest flight 00:19
  • The latest flight 23:59
  • Distance 2732 ml

The cheapest months to travel to San Juan are september (from 233 $), august (from 242 $), october (from 305 $).

The most expensive months are may (from 410 $), june (from 388 $), july (from 352 $).

What is the lowest airfare Denver to San Juan?

The cheapest plane ticket found by our users is $233. This airfare is for economy class on one-way UA2419 flight by United Airlines for September 27, 2025 which leaves Denver International in Denver at 20:31 am and arrives at San Juan Luis Munoz Marin Intl at 20:38.

Economy class
$233
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Business class
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First class
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Popular Airlines on the Route

The flight Denver — San Juan is served by 7 regular airlines and 4 low-cost airlines. Most of the flights on this route are operated by Frontier Airlines - 49 departures per week at the price of from $ 302 . And the most expensive tickets are offered by United Airlines airline - from $ 1228.

Direct flights

There’re no direct flights on this route. Try flights with stops.

Connecting Flights

There are 97 flights with layovers on the route. The fastest connecting flight is UA2676 by United Airlines takes 8h 27m and the cheapest is UA2419 by United Airlines for $233.

  • F9 - Frontier Airlines
    from $302
    Find
  • SY - Sun Country Airlines
    from $646
    Find
  • CM - Compania Panamena de Aviacion
    from $467
    Find
  • Y4 - Volaris
    from $472
    Find
  • UA - United Airlines
    from $233
    Find
  • AM - Aeromexico
    from $517
    Find
  • G4 - Allegiant Air
    from $411
    Find
See more connecting flights

Airports

You can fly from Denver to San Juan from 2 airports (Denver International, Arapahoe Co).

Denver airports

  • Denver International-DEN
    from $233
    Find
  • Arapahoe Co-APA
    Find

San Juan airports

  • Isla Grande-SIG
    Find
  • Luis Munoz Marin Intl-SJU
    Find

Airplanes

There are flights to San Juan from Denver by 7 airlines that use 0 aircraft brands. They range from huge modern airplanes to small-sized.

Top Domestic Destinations from Denver

You may also consider searching for discounted plane tickets to some other popular places from Denver within United States.

Top International Destinations from Denver

Our state-of-the art metasearch will definitely provide you with the best airfare on international flights. We’re proud to partner with many reliable travel suppliers located outside the US what gives us an opportunity to offer the most competitive prices on far destinations.

How to book a plane ticket yourself?

How to book an air ticket yourself?
  • Fill in the search parameters — cities of departure and destination, departure and return dates and click «Find flights»
  • Select the best flight that you like. Please, check the airports of departure and arrival. Select the best fare, but pay attention to the following flight details - airports of departure and arrival, flight duration and layovers. Please use filters and sort to find the best flight.
  • Click «Buy» when you are ready — our system will redirect you to the site that sells the selected flight ticket.
  • Fill in all passenger and payment information — passport and contact information, please double check all passengers’ names and make a payment for your itinerary.
  • That's it — you will receive an email with your e-ticket usually within 10 minutes after your flight is confirmed. Please, print the e-ticket and have it with you at the airport. You would need to have only a passport and/or a required form of ID to travel. Please, check your Visa requirements if you travel outside of the United States or Canada.

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