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Cheap flights from Denver to San Juan from $103

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 2/23. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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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.
Multiple Airlines Logo
11:59 pm - 6:58 pm
DEN
-
SJU
15h 59m
1 stop
Multiple Airlines Logo
6:00 am - 9:11 am
SJU
-
DEN
30h 11m
1 stop
$202Multiple Airlines
Mon, Feb 23 - Mon, Mar 2
Frontier Logo
12:59 am - 3:02 pm
DEN
-
SJU
11h 03m
1 stop
Frontier Logo
11:07 am - 10:59 pm
SJU
-
DEN
14h 52m
1 stop
$203Frontier
Sun, Feb 22 - Wed, Feb 25
Frontier Logo
9:25 am - 12:43 am
DEN
-
SJU
12h 18m
1 stop
Frontier Logo
3:53 am - 10:59 pm
SJU
-
DEN
22h 06m
1 stop
$204Frontier
Tue, Feb 24 - Wed, Mar 4
Frontier Logo
7:24 pm - 2:53 am
DEN
-
SJU
28h 29m
1 stop
Frontier Logo
7:09 pm - 7:59 pm
SJU
-
DEN
27h 50m
1 stop
$205Frontier
Sat, Feb 21 - Thu, Feb 26
Multiple Airlines Logo
9:25 am - 12:43 am
DEN
-
SJU
12h 18m
1 stop
Multiple Airlines Logo
11:52 am - 11:10 pm
SJU
-
DEN
14h 18m
1 stop
$209Multiple Airlines
Tue, Feb 24 - Fri, Mar 6
Multiple Airlines Logo
12:59 am - 3:31 pm
DEN
-
SJU
11h 32m
2 stops
Multiple Airlines Logo
9:58 pm - 8:26 am
SJU
-
DEN
12h 28m
1 stop
$210Multiple Airlines
Mon, Mar 2 - Mon, Mar 9
Frontier Logo
12:28 am - 10:27 am
DEN
-
SJU
7h 59m
1 stop
Frontier Logo
3:09 pm - 11:08 pm
SJU
-
DEN
9h 59m
1 stop
$211Frontier
Mon, Mar 30 - Tue, Apr 7
Multiple Airlines Logo
9:06 pm - 3:31 pm
DEN
-
SJU
15h 25m
2 stops
Multiple Airlines Logo
6:00 am - 9:11 am
SJU
-
DEN
30h 11m
1 stop
$212Multiple Airlines
Mon, Feb 23 - Fri, Feb 27
Frontier Logo
12:28 am - 10:27 am
DEN
-
SJU
7h 59m
1 stop
Frontier Logo
6:07 pm - 10:30 am
SJU
-
DEN
18h 23m
1 stop
$213Frontier
Mon, Mar 30 - Mon, Apr 13
Frontier Logo
6:20 pm - 9:54 am
DEN
-
SJU
12h 34m
1 stop
Frontier Logo
5:25 pm - 7:55 am
SJU
-
DEN
17h 30m
1 stop
$214Frontier
Wed, Feb 25 - Wed, Mar 4

Frontier flights from Denver to San Juan

Our best Frontier deals on Denver to San Juan flight tickets
Frontier
Feb 22
DEN12:59 amDenver Intl
11h 03m
1 stop
SJU3:02 pmSan Juan Luis Munoz Marin Intl
Feb 25
SJU11:07 amSan Juan Luis Munoz Marin Intl
14h 52m
1 stop
DEN10:59 pmDenver Intl
$203
Frontier
Feb 24
DEN9:25 amDenver Intl
12h 18m
1 stop
SJU12:43 amSan Juan Luis Munoz Marin Intl
Mar 4
SJU3:53 amSan Juan Luis Munoz Marin Intl
22h 06m
1 stop
DEN10:59 pmDenver Intl
$204
Frontier
Feb 21
DEN7:24 pmDenver Intl
28h 29m
1 stop
SJU2:53 amSan Juan Luis Munoz Marin Intl
Feb 26
SJU7:09 pmSan Juan Luis Munoz Marin Intl
27h 50m
1 stop
DEN7:59 pmDenver Intl
$205

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 January 29, 2026.
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

Mon 2/23

11:59 pm-6:58 pm

1 stop15h 59m

San Juan Luis Munoz Marin Intl

Mon 3/2

6:00 am-9:11 am

1 stop30h 11m

$202

DenverSan Juan

DEN - SJU

DENSJU

Denver Intl

Sun 2/22

12:59 am-3:02 pm

1 stop11h 03m

San Juan Luis Munoz Marin Intl

Wed 2/25

11:07 am-10:59 pm

1 stop14h 52m

$203

DenverSan Juan

DEN - SJU

DENSJU

Denver Intl

Tue 2/24

9:25 am-12:43 am

1 stop12h 18m

San Juan Luis Munoz Marin Intl

Wed 3/4

3:53 am-10:59 pm

1 stop22h 06m

$204

DenverSan Juan

DEN - SJU

DENSJU

Denver Intl

Sat 2/21

7:24 pm-2:53 am

1 stop28h 29m

San Juan Luis Munoz Marin Intl

Thu 2/26

7:09 pm-7:59 pm

1 stop27h 50m

$205

DenverSan Juan

DEN - SJU

DENSJU

Denver Intl

Tue 2/24

9:25 am-12:43 am

1 stop12h 18m

San Juan Luis Munoz Marin Intl

Fri 3/6

11:52 am-11:10 pm

1 stop14h 18m

$209

DenverSan Juan

DEN - SJU

DENSJU

Denver Intl

Mon 3/2

12:59 am-3:31 pm

2 stops11h 32m

San Juan Luis Munoz Marin Intl

Mon 3/9

9:58 pm-8:26 am

1 stop12h 28m

$210

DenverSan Juan

DEN - SJU

DENSJU

Denver Intl

Mon 3/30

12:28 am-10:27 am

1 stop7h 59m

San Juan Luis Munoz Marin Intl

Tue 4/7

3:09 pm-11:08 pm

1 stop9h 59m

$211

DenverSan Juan

DEN - SJU

DENSJU

Denver Intl

Mon 2/23

9:06 pm-3:31 pm

2 stops15h 25m

San Juan Luis Munoz Marin Intl

Fri 2/27

6:00 am-9:11 am

1 stop30h 11m

$212

DenverSan Juan

DEN - SJU

DENSJU

Denver Intl

Mon 3/30

12:28 am-10:27 am

1 stop7h 59m

San Juan Luis Munoz Marin Intl

Mon 4/13

6:07 pm-10:30 am

1 stop18h 23m

$213

DenverSan Juan

DEN - SJU

DENSJU

Denver Intl

Wed 2/25

6:20 pm-9:54 am

1 stop12h 34m

San Juan Luis Munoz Marin Intl

Wed 3/4

5:25 pm-7:55 am

1 stop17h 30m

$214

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 $369.

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 $620. The most expensive day to fly to San Juan is Saturday, with ticket prices averaging around $771.

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 $476 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 $323 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 $155Free CancellationRating
5.7
3,056 reviews
Search Frontier flights
JetBluePriceFrom $272Free CancellationRating
7.2
2,891 reviews
Search JetBlue flights
DeltaPriceFrom $328Free CancellationRating
7.9
8,127 reviews
Search Delta flights
SouthwestPriceFrom $426Free CancellationRating
8.0
4,267 reviews
Search Southwest flights
American AirlinesPriceFrom $485Free CancellationRating
7.2
11,206 reviews
Search American Airlines flights
United AirlinesPriceFrom $486Free CancellationRating
7.4
9,215 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