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Cheap flights from Denver to San Juan from $90

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Denver to San Juan departing on 2/26. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Denver to San Juan

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
12:20 pm - 7:59 pm
DEN
-
SJU
28h 39m1 stop
Frontier Logo
4:16 pm - 6:59 pm
SJU
-
DEN
29h 43m1 stop
$232Frontier
Wed, Jan 14 - Mon, Jan 26
Frontier Logo
11:59 pm - 11:15 am
DEN
-
SJU
8h 16m1 stop
Frontier Logo
3:58 am - 10:30 am
SJU
-
DEN
9h 32m1 stop
$233Frontier
Fri, Jan 9 - Fri, Jan 16
Frontier Logo
11:59 pm - 1:49 pm
DEN
-
SJU
10h 50m1 stop
Frontier Logo
7:34 pm - 8:20 am
SJU
-
DEN
15h 46m1 stop
$234Frontier
Fri, Jan 9 - Sat, Jan 17
Frontier Logo
6:30 am - 11:59 pm
DEN
-
SJU
14h 29m2 stops
Frontier Logo
2:17 pm - 8:00 pm
SJU
-
DEN
8h 43m1 stop
$235Frontier
Thu, Jan 29 - Thu, Feb 5
Frontier Logo
7:43 pm - 6:34 am
DEN
-
SJU
7h 51m1 stop
Frontier Logo
6:55 am - 8:08 pm
SJU
-
DEN
16h 13m1 stop
$236Frontier
Sat, Jan 10 - Sun, Jan 18
Frontier Logo
7:43 pm - 6:34 am
DEN
-
SJU
7h 51m1 stop
Frontier Logo
7:05 pm - 7:13 am
SJU
-
DEN
15h 08m1 stop
$237Frontier
Tue, Jan 6 - Mon, Jan 12
Frontier Logo
6:33 pm - 6:08 pm
DEN
-
SJU
20h 35m1 stop
Frontier Logo
8:57 am - 8:20 am
SJU
-
DEN
26h 23m1 stop
$238Frontier
Tue, Jan 6 - Wed, Jan 14
Frontier Logo
10:46 am - 3:16 pm
DEN
-
SJU
25h 30m1 stop
Frontier Logo
7:00 pm - 12:19 pm
SJU
-
DEN
20h 19m2 stops
$240Frontier
Thu, Jan 22 - Tue, Jan 27
Frontier Logo
7:00 am - 2:35 am
DEN
-
SJU
16h 35m2 stops
Frontier Logo
3:53 am - 10:59 pm
SJU
-
DEN
22h 06m1 stop
$241Frontier
Thu, Feb 12 - Tue, Feb 17
Frontier Logo
12:01 am - 3:02 pm
DEN
-
SJU
12h 01m1 stop
Frontier Logo
11:07 am - 10:59 pm
SJU
-
DEN
14h 52m1 stop
$242Frontier
Sun, Feb 15 - Wed, Feb 25

Frontier flights from Denver to San Juan

Our best Frontier deals on Denver to San Juan flight tickets
Frontier
Jan 14
DEN12:20 pmDenver Intl
28h 39m
1 stop
SJU7:59 pmSan Juan Luis Munoz Marin Intl
Jan 26
SJU4:16 pmSan Juan Luis Munoz Marin Intl
29h 43m
1 stop
DEN6:59 pmDenver Intl
$232
Find similar
Frontier
Jan 9
DEN11:59 pmDenver Intl
8h 16m
1 stop
SJU11:15 amSan Juan Luis Munoz Marin Intl
Jan 16
SJU3:58 amSan Juan Luis Munoz Marin Intl
9h 32m
1 stop
DEN10:30 amDenver Intl
$233
Find similar
Frontier
Jan 9
DEN11:59 pmDenver Intl
10h 50m
1 stop
SJU1:49 pmSan Juan Luis Munoz Marin Intl
Jan 17
SJU7:34 pmSan Juan Luis Munoz Marin Intl
15h 46m
1 stop
DEN8:20 amDenver Intl
$234
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Denver to San Juan that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated December 25, 2025.
Use the filters below to find and compare flights from Denver to San Juan that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

DenverSan Juan

DEN - SJU

DENSJU

Denver Intl

Wed 1/14

12:20 pm-7:59 pm

1 stop28h 39m

San Juan Luis Munoz Marin Intl

Mon 1/26

4:16 pm-6:59 pm

1 stop29h 43m

$232

DenverSan Juan

DEN - SJU

DENSJU

Denver Intl

Fri 1/9

11:59 pm-11:15 am

1 stop8h 16m

San Juan Luis Munoz Marin Intl

Fri 1/16

3:58 am-10:30 am

1 stop9h 32m

$233

DenverSan Juan

DEN - SJU

DENSJU

Denver Intl

Fri 1/9

11:59 pm-1:49 pm

1 stop10h 50m

San Juan Luis Munoz Marin Intl

Sat 1/17

7:34 pm-8:20 am

1 stop15h 46m

$234

DenverSan Juan

DEN - SJU

DENSJU

Denver Intl

Thu 1/29

6:30 am-11:59 pm

2 stops14h 29m

San Juan Luis Munoz Marin Intl

Thu 2/5

2:17 pm-8:00 pm

1 stop8h 43m

$235

DenverSan Juan

DEN - SJU

DENSJU

Denver Intl

Sat 1/10

7:43 pm-6:34 am

1 stop7h 51m

San Juan Luis Munoz Marin Intl

Sun 1/18

6:55 am-8:08 pm

1 stop16h 13m

$236

DenverSan Juan

DEN - SJU

DENSJU

Denver Intl

Tue 1/6

7:43 pm-6:34 am

1 stop7h 51m

San Juan Luis Munoz Marin Intl

Mon 1/12

7:05 pm-7:13 am

1 stop15h 08m

$237

DenverSan Juan

DEN - SJU

DENSJU

Denver Intl

Tue 1/6

6:33 pm-6:08 pm

1 stop20h 35m

San Juan Luis Munoz Marin Intl

Wed 1/14

8:57 am-8:20 am

1 stop26h 23m

$238

DenverSan Juan

DEN - SJU

DENSJU

Denver Intl

Thu 1/22

10:46 am-3:16 pm

1 stop25h 30m

San Juan Luis Munoz Marin Intl

Tue 1/27

7:00 pm-12:19 pm

2 stops20h 19m

$240

DenverSan Juan

DEN - SJU

DENSJU

Denver Intl

Thu 2/12

7:00 am-2:35 am

2 stops16h 35m

San Juan Luis Munoz Marin Intl

Tue 2/17

3:53 am-10:59 pm

1 stop22h 06m

$241

DenverSan Juan

DEN - SJU

DENSJU

Denver Intl

Sun 2/15

12:01 am-3:02 pm

1 stop12h 01m

San Juan Luis Munoz Marin Intl

Wed 2/25

11:07 am-10:59 pm

1 stop14h 52m

$242

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to San Juan from

How to get the cheapest flight ticket from Denver to San Juan

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to San Juan?

If you’re not able to fly to San Juan in August, then May is your next best option. Flight prices from Denver to San Juan during May average around $364.

What is the cheapest day to depart on your flight to San Juan?

The cheapest day to depart from Denver to San Juan is on a Tuesday when prices can be found for as low as $633. The most expensive day to fly to San Juan is Saturday, with ticket prices averaging around $785.

What is the cheapest time of day to depart on your flight to San Juan?

The cheapest time of day to fly to San Juan is in the afternoon when flights can be purchased for as low as $288. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are $689 on average. Flights to San Juan from Denver in the morning are generally more expensive because this time of day is more convenient for travelers’ schedules.

What is the cheapest Denver Intl to San Juan flight route?

Fly from Denver Intl to San Juan Luis Munoz Marin Intl for the best Denver Intl - San Juan flight prices

How far in advance should I book a flight to San Juan?

You are more likely to see cheaper flights to San Juan from Denver when booking weeks ahead of your departure date. In general, you can expect to find flights to San Juan for around $490 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Juan from Denver for as low as $350 on momondo.

What cabin class options are available on Denver Intl to San Juan flights?

There are 4 cabin classes available to choose from on Denver Intl to San Juan flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Cheap Denver to San Juan flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Denver to San Juan

Fastest flight time

5h 40m

Direct flights

Every day

Airports in San Juan

2 airports
The fastest flight from Denver to San Juan takes 5h 40m
Direct flights go from Denver to San Juan every day.
There are 2 airports in San Juan. From Denver there are direct flights to San Juan Luis Munoz Marin Intl (SJU).
Search flight deals

  • How far is Denver Intl to San Juan by plane?

    A flight from Denver Intl to San Juan will travel around 2735.5 mi. By plane, this route typically takes 5h 40m.

  • When did momondo last update prices for flights from Denver Intl Airport to San Juan?

    Prices for flights from Denver Intl Airport to San Juan are refreshed on a daily basis.

  • How many operators does momondo search for flights from Denver Intl Airport to San Juan?

  • How old do you have to be to fly from Denver Intl Airport to San Juan?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Denver Intl Airport to San Juan.

  • What documentation or ID do you need to fly to San Juan?

    The required travel and health documents for your San Juan trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at San Juan. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best airlines flying from Denver to San Juan

Compare and see reviews for airlines that fly from Denver to San Juan with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $149Free CancellationRating
5.8
3,070 reviews
Search Frontier flights
JetBluePriceFrom $299Free CancellationRating
7.2
2,899 reviews
Search JetBlue flights
DeltaPriceFrom $335Free CancellationRating
7.9
8,012 reviews
Search Delta flights
SouthwestPriceFrom $451Free CancellationRating
8.0
4,258 reviews
Search Southwest flights
American AirlinesPriceFrom $485Free CancellationRating
7.2
11,061 reviews
Search American Airlines flights
United AirlinesPriceFrom $487Free CancellationRating
7.4
9,115 reviews
Search United Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Denver to San Juan?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Denver to San Juan. momondo saves you time and could save you money on your trip.

Can I find flights from Denver to San Juan with flexible booking policies on momondo?

momondo does allow users to show only those flights to San Juan from Denver which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Denver to San Juan?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to San Juan from Denver.

I’m not ready to book a flight from Denver to San Juan right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to San Juan from Denver. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

An easier way to manage your San Juan trip

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Find better results for your trip to Puerto Rico

Fly into one of these airports located in San Juan

Airports listed have a maximum distance of 7.1 mi from San Juan
San Juan Isla Grande Airport
San Juan Luis Munoz Marin Intl Airport