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Cheap flights from Denver to San Juan from $120

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 4/11. 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
1 adult, Economy, 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
11:59 pm - 9:54 am
DEN
-
SJU
7h 55m
1 stop
Frontier Logo
3:03 pm - 10:29 pm
SJU
-
DEN
9h 26m
1 stop
$242Frontier
lun., abr. 27 - jue., abr. 30
Frontier Logo
9:55 am - 11:29 pm
DEN
-
SJU
11h 34m
1 stop
Frontier Logo
4:11 pm - 9:49 pm
SJU
-
DEN
31h 38m
1 stop
$247Frontier
lun., may. 4 - jue., may. 14
Frontier Logo
11:05 pm - 5:59 pm
DEN
-
SJU
16h 54m
1 stop
Frontier Logo
3:08 am - 10:59 pm
SJU
-
DEN
21h 51m
1 stop
$248Frontier
mar., abr. 28 - vie., may. 8
Frontier Logo
11:05 pm - 5:30 pm
DEN
-
SJU
16h 25m
1 stop
Frontier Logo
3:18 pm - 11:03 pm
SJU
-
DEN
9h 45m
1 stop
$251Frontier
lun., may. 4 - jue., may. 7
Frontier Logo
11:59 pm - 2:01 am
DEN
-
SJU
24h 02m
1 stop
Frontier Logo
11:30 am - 9:40 am
SJU
-
DEN
24h 10m
1 stop
$253Frontier
sáb., abr. 18 - mié., abr. 22
Multiple Airlines Logo
11:59 pm - 5:31 pm
DEN
-
SJU
15h 32m
1 stop
Multiple Airlines Logo
9:54 am - 12:09 pm
SJU
-
DEN
28h 15m
1 stop
$256Multiple Airlines
sáb., may. 2 - vie., may. 8
Frontier Logo
6:00 am - 8:49 pm
DEN
-
SJU
12h 49m
1 stop
Frontier Logo
3:08 am - 5:18 pm
SJU
-
DEN
16h 10m
2 stops
$257Frontier
sáb., abr. 11 - mar., abr. 14
Multiple Airlines Logo
9:25 am - 1:58 am
DEN
-
SJU
14h 33m
1 stop
Multiple Airlines Logo
12:05 pm - 11:04 pm
SJU
-
DEN
12h 59m
1 stop
$259Multiple Airlines
lun., mar. 30 - mar., abr. 7
Frontier Logo
11:05 pm - 5:30 pm
DEN
-
SJU
16h 25m
1 stop
Frontier Logo
3:08 am - 10:59 pm
SJU
-
DEN
21h 51m
1 stop
$260Frontier
lun., may. 4 - vie., may. 8
Frontier Logo
11:59 pm - 9:54 am
DEN
-
SJU
7h 55m
1 stop
Frontier Logo
11:30 am - 9:40 am
SJU
-
DEN
24h 10m
1 stop
$261Frontier
mar., abr. 21 - mar., abr. 28

Frontier flights from Denver to San Juan

Our best Frontier deals on Denver to San Juan flight tickets
Frontier
Apr 27
DEN11:59 pmDenver Intl
7h 55m
1 stop
SJU9:54 amSan Juan Luis Munoz Marin Intl
Apr 30
SJU3:03 pmSan Juan Luis Munoz Marin Intl
9h 26m
1 stop
DEN10:29 pmDenver Intl
$242
Frontier
May 4
DEN9:55 amDenver Intl
11h 34m
1 stop
SJU11:29 pmSan Juan Luis Munoz Marin Intl
May 14
SJU4:11 pmSan Juan Luis Munoz Marin Intl
31h 38m
1 stop
DEN9:49 pmDenver Intl
$247
Frontier
Apr 28
DEN11:05 pmDenver Intl
16h 54m
1 stop
SJU5:59 pmSan Juan Luis Munoz Marin Intl
May 8
SJU3:08 amSan Juan Luis Munoz Marin Intl
21h 51m
1 stop
DEN10:59 pmDenver Intl
$248

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 marzo 12, 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

Cheapest round-trip
Quickest round-trip

DenverSan Juan

DEN - SJU

DENSJU

Denver Intl

lun. 4/27

11:59 pm-9:54 am

1 stop7h 55m

San Juan Luis Munoz Marin Intl

jue. 4/30

3:03 pm-10:29 pm

1 stop9h 26m

$242

DenverSan Juan

DEN - SJU

DENSJU

Denver Intl

lun. 5/4

9:55 am-11:29 pm

1 stop11h 34m

San Juan Luis Munoz Marin Intl

jue. 5/14

4:11 pm-9:49 pm

1 stop31h 38m

$247

DenverSan Juan

DEN - SJU

DENSJU

Denver Intl

mar. 4/28

11:05 pm-5:59 pm

1 stop16h 54m

San Juan Luis Munoz Marin Intl

vie. 5/8

3:08 am-10:59 pm

1 stop21h 51m

$248

DenverSan Juan

DEN - SJU

DENSJU

Denver Intl

lun. 5/4

11:05 pm-5:30 pm

1 stop16h 25m

San Juan Luis Munoz Marin Intl

jue. 5/7

3:18 pm-11:03 pm

1 stop9h 45m

$251

DenverSan Juan

DEN - SJU

DENSJU

Denver Intl

sáb. 4/18

11:59 pm-2:01 am

1 stop24h 02m

San Juan Luis Munoz Marin Intl

mié. 4/22

11:30 am-9:40 am

1 stop24h 10m

$253

DenverSan Juan

DEN - SJU

DENSJU

Denver Intl

sáb. 5/2

11:59 pm-5:31 pm

1 stop15h 32m

San Juan Luis Munoz Marin Intl

vie. 5/8

9:54 am-12:09 pm

1 stop28h 15m

$256

DenverSan Juan

DEN - SJU

DENSJU

Denver Intl

sáb. 4/11

6:00 am-8:49 pm

1 stop12h 49m

San Juan Luis Munoz Marin Intl

mar. 4/14

3:08 am-5:18 pm

2 stops16h 10m

$257

DenverSan Juan

DEN - SJU

DENSJU

Denver Intl

lun. 3/30

9:25 am-1:58 am

1 stop14h 33m

San Juan Luis Munoz Marin Intl

mar. 4/7

12:05 pm-11:04 pm

1 stop12h 59m

$259

DenverSan Juan

DEN - SJU

DENSJU

Denver Intl

lun. 5/4

11:05 pm-5:30 pm

1 stop16h 25m

San Juan Luis Munoz Marin Intl

vie. 5/8

3:08 am-10:59 pm

1 stop21h 51m

$260

DenverSan Juan

DEN - SJU

DENSJU

Denver Intl

mar. 4/21

11:59 pm-9:54 am

1 stop7h 55m

San Juan Luis Munoz Marin Intl

mar. 4/28

11:30 am-9:40 am

1 stop24h 10m

$261

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 typical price of a round-trip flight between Denver and San Juan?

What is the cheapest month to fly to San Juan?

If you’re not able to fly to San Juan in August, then September is your next best option. Flight prices from Denver to San Juan during September average around $377.

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 $600. The most expensive day to fly to San Juan is Saturday, with ticket prices averaging around $767.

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 $483 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 $179Free CancellationRating
5.7
3,034 reviews
Search Frontier flights
JetBluePriceFrom $272Free CancellationRating
7.2
2,903 reviews
Search JetBlue flights
DeltaPriceFrom $328Free CancellationRating
7.9
8,286 reviews
Search Delta flights
SouthwestPriceFrom $412Free CancellationRating
8.0
4,319 reviews
Search Southwest flights
American AirlinesPriceFrom $485Free CancellationRating
7.1
11,432 reviews
Search American Airlines flights
United AirlinesPriceFrom $486Free CancellationRating
7.4
9,418 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.

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1 adult
sáb. 4/11
sáb. 4/18
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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