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Cheap flights from San Juan to Denver from $143

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from San Juan to Denver departing on 8/26. 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
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from San Juan to Denver

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
6:00 am - 8:14 am
SJU
-
DEN
28h 14m
2 stops
Frontier Logo
5:15 pm - 6:44 am
DEN
-
SJU
11h 29m
1 stop
$335Frontier
Tue, Aug 4 - Tue, Aug 18
Frontier Logo
7:30 am - 8:14 am
SJU
-
DEN
50h 44m
2 stops
Frontier Logo
5:05 pm - 6:44 am
DEN
-
SJU
11h 39m
1 stop
$358Frontier
Thu, Jul 30 - Sat, Aug 15
Frontier Logo
7:14 pm - 4:45 pm
SJU
-
DEN
23h 31m
1 stop
Frontier Logo
9:55 am - 6:44 am
DEN
-
SJU
18h 49m
1 stop
$363Frontier
Wed, Aug 26 - Sun, Aug 30
Frontier Logo
6:44 am - 11:04 pm
SJU
-
DEN
18h 20m
1 stop
Frontier Logo
5:05 pm - 6:44 am
DEN
-
SJU
11h 39m
1 stop
$366Frontier
Thu, Jul 30 - Sat, Aug 15
Frontier Logo
8:37 pm - 8:07 am
SJU
-
DEN
13h 30m
1 stop
Frontier Logo
5:15 pm - 6:44 am
DEN
-
SJU
11h 29m
1 stop
$369Frontier
Tue, Aug 4 - Tue, Aug 18
Frontier Logo
6:44 am - 11:04 pm
SJU
-
DEN
18h 20m
1 stop
Frontier Logo
5:05 pm - 6:44 am
DEN
-
SJU
11h 39m
1 stop
$370Frontier
Thu, Jul 30 - Sat, Aug 15
Frontier Logo
10:48 pm - 11:00 pm
SJU
-
DEN
26h 12m
1 stop
Frontier Logo
11:59 pm - 2:59 am
DEN
-
SJU
25h 00m
1 stop
$371Frontier
Fri, Jul 17 - Fri, Jul 24
Frontier Logo
3:36 pm - 2:19 pm
SJU
-
DEN
24h 43m
1 stop
Frontier Logo
9:55 am - 6:26 am
DEN
-
SJU
18h 31m
1 stop
$375Frontier
Tue, Aug 4 - Tue, Aug 18
Frontier Logo
8:37 pm - 8:07 am
SJU
-
DEN
13h 30m
1 stop
Frontier Logo
11:59 pm - 11:06 am
DEN
-
SJU
9h 07m
1 stop
$376Frontier
Tue, Aug 4 - Tue, Aug 18
Frontier Logo
8:37 pm - 8:07 am
SJU
-
DEN
13h 30m
1 stop
Frontier Logo
10:00 am - 12:41 am
DEN
-
SJU
12h 41m
2 stops
$378Frontier
Tue, Aug 4 - Sat, Aug 8

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Southwest flights from San Juan to Denver

Our best Southwest deals on San Juan to Denver flight tickets
Southwest
Sep 18
SJU5:00 amSan Juan Luis Munoz Marin Intl
10h 05m
2 stops
DEN1:05 pmDenver Intl
Sep 22
DEN6:35 amDenver Intl
9h 35m
2 stops
SJU6:10 pmSan Juan Luis Munoz Marin Intl
$438
Southwest
Jul 4
SJU10:05 amSan Juan Luis Munoz Marin Intl
9h 35m
2 stops
DEN5:40 pmDenver Intl
Jul 6
DEN12:20 pmDenver Intl
10h 00m
2 stops
SJU12:20 amSan Juan Luis Munoz Marin Intl
$656
Southwest
Jun 24
SJU5:30 amSan Juan Luis Munoz Marin Intl
10h 40m
2 stops
DEN2:10 pmDenver Intl
Jul 3
DEN12:20 pmDenver Intl
9h 55m
2 stops
SJU12:15 amSan Juan Luis Munoz Marin Intl
$686

Frontier flights from San Juan to Denver

Our best Frontier deals on San Juan to Denver flight tickets
Frontier
Aug 4
SJU6:00 amSan Juan Luis Munoz Marin Intl
28h 14m
2 stops
DEN8:14 amDenver Intl
Aug 18
DEN5:15 pmDenver Intl
11h 29m
1 stop
SJU6:44 amSan Juan Luis Munoz Marin Intl
$335
Frontier
Jul 30
SJU7:30 amSan Juan Luis Munoz Marin Intl
50h 44m
2 stops
DEN8:14 amDenver Intl
Aug 15
DEN5:05 pmDenver Intl
11h 39m
1 stop
SJU6:44 amSan Juan Luis Munoz Marin Intl
$358
Frontier
Aug 26
SJU7:14 pmSan Juan Luis Munoz Marin Intl
23h 31m
1 stop
DEN4:45 pmDenver Intl
Aug 30
DEN9:55 amDenver Intl
18h 49m
1 stop
SJU6:44 amSan Juan Luis Munoz Marin Intl
$363

momondo Fare Finder

 
Customize your flight search to find flights from San Juan to Denver 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 June 22, 2026.
Use the filters below to find and compare flights from San Juan to Denver that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

San JuanDenver

SJU - DEN

SJUDEN

San Juan Luis Munoz Marin Intl

Tue 8/4

6:00 am-8:14 am

2 stops28h 14m

Denver Intl

Tue 8/18

5:15 pm-6:44 am

1 stop11h 29m

$335

San JuanDenver

SJU - DEN

SJUDEN

San Juan Luis Munoz Marin Intl

Thu 7/30

7:30 am-8:14 am

2 stops50h 44m

Denver Intl

Sat 8/15

5:05 pm-6:44 am

1 stop11h 39m

$358

San JuanDenver

SJU - DEN

SJUDEN

San Juan Luis Munoz Marin Intl

Wed 8/26

7:14 pm-4:45 pm

1 stop23h 31m

Denver Intl

Sun 8/30

9:55 am-6:44 am

1 stop18h 49m

$363

San JuanDenver

SJU - DEN

SJUDEN

San Juan Luis Munoz Marin Intl

Thu 7/30

6:44 am-11:04 pm

1 stop18h 20m

Denver Intl

Sat 8/15

5:05 pm-6:44 am

1 stop11h 39m

$366

San JuanDenver

SJU - DEN

SJUDEN

San Juan Luis Munoz Marin Intl

Tue 8/4

8:37 pm-8:07 am

1 stop13h 30m

Denver Intl

Tue 8/18

5:15 pm-6:44 am

1 stop11h 29m

$369

San JuanDenver

SJU - DEN

SJUDEN

San Juan Luis Munoz Marin Intl

Thu 7/30

6:44 am-11:04 pm

1 stop18h 20m

Denver Intl

Sat 8/15

5:05 pm-6:44 am

1 stop11h 39m

$370

San JuanDenver

SJU - DEN

SJUDEN

San Juan Luis Munoz Marin Intl

Fri 7/17

10:48 pm-11:00 pm

1 stop26h 12m

Denver Intl

Fri 7/24

11:59 pm-2:59 am

1 stop25h 00m

$371

San JuanDenver

SJU - DEN

SJUDEN

San Juan Luis Munoz Marin Intl

Tue 8/4

3:36 pm-2:19 pm

1 stop24h 43m

Denver Intl

Tue 8/18

9:55 am-6:26 am

1 stop18h 31m

$375
Quickest round-trip

San JuanDenver

SJU - DEN

SJUDEN

San Juan Luis Munoz Marin Intl

Tue 8/4

8:37 pm-8:07 am

1 stop13h 30m

Denver Intl

Tue 8/18

11:59 pm-11:06 am

1 stop9h 07m

$376

San JuanDenver

SJU - DEN

SJUDEN

San Juan Luis Munoz Marin Intl

Tue 8/4

8:37 pm-8:07 am

1 stop13h 30m

Denver Intl

Sat 8/8

10:00 am-12:41 am

2 stops12h 41m

$378

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 Denver from

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

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 San Juan and Denver?

What is the cheapest month to fly to Denver?

The cheapest month to fly to Denver from San Juan is in April. Flight prices, which tend to average around $121, are often lower during this time because this is during the off-season. If you don’t want to visit Denver in April, then you should wait until February to fly from San Juan, when ticket prices are also cheap, with an average price of $125.

What is the cheapest day to depart on your flight to Denver?

The cheapest day to depart on your flight to Denver is on a Thursday when prices can be found for as low as $537. This is often the case because there is less demand to fly during this day of the week. The most expensive day to fly to Denver is Sunday, with ticket prices averaging around $987.

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

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

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

You are more likely to see cheaper flights to Denver from San Juan when booking weeks ahead of your departure date. In general, you can expect to find flights to Denver for around $515 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Denver from San Juan for as low as $367 on momondo.

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

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

Cheap San Juan to Denver flight deals and tips

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

Fastest flight time

6h 19m

Direct flights

Every day

Airports in Denver

1 airport
The fastest flight from San Juan to Denver takes 6h 19m
Direct flights go from San Juan to Denver every day.
There is 1 airport in Denver. From San Juan there are direct flights to Denver Intl (DEN).
Search flight deals

Frequently asked questions about flying from San Juan to Denver

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

    The distance between San Juan and Denver Intl is about 2735.5 mi. 6h 19m is a normal flight duration for this route.

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

    Prices for flights from San Juan to Denver Intl Airport were last updated today.

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

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

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from San Juan to Denver Intl Airport.

  • What documentation or ID do you need to fly to Denver Intl Airport?

    The required travel and health documents for your Denver Intl Airport 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 Denver Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best airlines flying from San Juan to Denver

Compare and see reviews for airlines that fly from San Juan to Denver with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $170Free CancellationRating
5.6
2,871 reviews
Search Frontier flights
JetBluePriceFrom $195Free CancellationRating
7.1
2,996 reviews
Search JetBlue flights
American AirlinesPriceFrom $207Free CancellationRating
7.1
11,739 reviews
Search American Airlines flights
DeltaPriceFrom $295Free CancellationRating
7.8
8,421 reviews
Search Delta flights
SouthwestPriceFrom $411Free CancellationRating
7.9
4,243 reviews
Search Southwest flights
United AirlinesPriceFrom $490Free CancellationRating
7.4
9,875 reviews
Search United Airlines flights

Traveling to a place near Denver?

Book flights to Denver if you plan to visit one of these locations
Breckenridge
Estes Park
Black Hawk
Aurora
Fort Collins
Longmont
Boulder
Manitou Springs
Westminster
Greeley
Lakewood
Keystone
Thornton
Cripple Creek
Englewood
Frisco
Centennial
Winter Park
Littleton
Copper Mountain

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from San Juan to Denver. Millions of users trust and use momondo every year so you are in good hands.

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

Yes. momondo enables you to select and highlight flights to Denver from San Juan with this policy.

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

Once all potential San Juan to Denver flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

If you are not ready to book a flight from San Juan to Denver now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Denver and let you know when they change.

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