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Cheap flights from Missouri to Puerto Rico from $87

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Missouri to Puerto Rico departing on 5/15. 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 Missouri to Puerto Rico

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
4:19 pm - 2:08 am
STL
-
SJU
8h 49m
1 stop
Frontier Logo
6:00 am - 12:21 am
SJU
-
STL
19h 21m
1 stop
$176Frontier
Fri, May 8 - Sun, May 10
Frontier Logo
4:59 pm - 2:01 am
STL
-
SJU
8h 02m
1 stop
Frontier Logo
6:09 pm - 12:21 am
SJU
-
STL
7h 12m
1 stop
$186Frontier
Sat, May 2 - Fri, May 8
Multiple Airlines Logo
6:19 pm - 4:43 pm
MCI
-
SJU
21h 24m
1 stop
Multiple Airlines Logo
11:16 am - 5:24 pm
SJU
-
MCI
7h 08m
1 stop
$267Multiple Airlines
Mon, Aug 17 - Fri, Aug 21
Multiple Airlines Logo
6:19 pm - 4:43 pm
MCI
-
SJU
21h 24m
1 stop
Multiple Airlines Logo
3:06 am - 5:24 pm
SJU
-
MCI
15h 18m
2 stops
$272Multiple Airlines
Mon, Aug 17 - Sun, Aug 23
Delta Logo
6:00 am - 1:30 pm
SGF
-
SJU
6h 30m
1 stop
Delta Logo
1:06 pm - 10:29 pm
SJU
-
SGF
10h 23m
1 stop
$276Delta
Tue, Aug 11 - Thu, Aug 20
American Airlines Logo
7:48 pm - 3:02 pm
SGF
-
SJU
18h 14m
1 stop
American Airlines Logo
3:42 pm - 9:10 am
SJU
-
SGF
18h 28m
1 stop
$366American Airlines
Mon, Sep 14 - Mon, Sep 21
Delta Logo
6:00 am - 1:30 pm
SGF
-
SJU
6h 30m
1 stop
Delta Logo
1:06 pm - 10:29 pm
SJU
-
SGF
10h 23m
1 stop
$383Delta
Tue, Aug 11 - Fri, Aug 21
American Airlines Logo
6:32 pm - 11:10 am
SGF
-
SJU
15h 38m
2 stops
American Airlines Logo
3:42 pm - 9:10 am
SJU
-
SGF
18h 28m
1 stop
$406American Airlines
Mon, Sep 14 - Mon, Sep 21
United Airlines Logo
6:17 am - 11:09 pm
MCI
-
BQN
15h 52m
2 stops
United Airlines Logo
12:15 am - 10:33 am
BQN
-
MCI
11h 18m
2 stops
$665United Airlines
Mon, May 4 - Thu, May 7
United Airlines Logo
12:08 pm - 11:09 pm
MCI
-
BQN
10h 01m
1 stop
United Airlines Logo
12:15 am - 10:33 am
BQN
-
MCI
11h 18m
2 stops
$701United Airlines
Mon, May 4 - Thu, May 7

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Frontier flights from Missouri to Puerto Rico

Our best Frontier deals on Missouri to Puerto Rico flight tickets
Frontier
May 8
STL4:19 pmLambert-St Louis
8h 49m
1 stop
SJU2:08 amSan Juan Luis Munoz Marin Intl
May 10
SJU6:00 amSan Juan Luis Munoz Marin Intl
19h 21m
1 stop
STL12:21 amLambert-St Louis
$176
Frontier
May 2
STL4:59 pmLambert-St Louis
8h 02m
1 stop
SJU2:01 amSan Juan Luis Munoz Marin Intl
May 8
SJU6:09 pmSan Juan Luis Munoz Marin Intl
7h 12m
1 stop
STL12:21 amLambert-St Louis
$186
Frontier
May 2
STL4:59 pmLambert-St Louis
8h 02m
1 stop
SJU2:01 amSan Juan Luis Munoz Marin Intl
May 9
SJU3:33 pmSan Juan Luis Munoz Marin Intl
9h 48m
1 stop
STL12:21 amLambert-St Louis
$196

Delta flights from Missouri to Puerto Rico

Our best Delta deals on Missouri to Puerto Rico flight tickets
Delta
Aug 11
SGF6:00 amSpringfield-Branson
6h 30m
1 stop
SJU1:30 pmSan Juan Luis Munoz Marin Intl
Aug 20
SJU1:06 pmSan Juan Luis Munoz Marin Intl
10h 23m
1 stop
SGF10:29 pmSpringfield-Branson
$276
Delta
Aug 25
MCI5:40 amKansas City
6h 50m
1 stop
SJU1:30 pmSan Juan Luis Munoz Marin Intl
Aug 29
SJU5:45 pmSan Juan Luis Munoz Marin Intl
7h 07m
1 stop
MCI11:52 pmKansas City
$326
Delta
Aug 11
SGF6:00 amSpringfield-Branson
6h 30m
1 stop
SJU1:30 pmSan Juan Luis Munoz Marin Intl
Aug 23
SJU1:06 pmSan Juan Luis Munoz Marin Intl
10h 23m
1 stop
SGF10:29 pmSpringfield-Branson
$383

momondo Fare Finder

 
Customize your flight search to find flights from Missouri to Puerto Rico 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 April 18, 2026.
Use the filters below to find and compare flights from Missouri to Puerto Rico that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

St. LouisSan Juan

STL - SJU

STLSJU

Lambert-St Louis

Fri 5/8

4:19 pm-2:08 am

1 stop8h 49m

San Juan Luis Munoz Marin Intl

Sun 5/10

6:00 am-12:21 am

1 stop19h 21m

$176
Quickest round-trip

St. LouisSan Juan

STL - SJU

STLSJU

Lambert-St Louis

Sat 5/2

4:59 pm-2:01 am

1 stop8h 02m

San Juan Luis Munoz Marin Intl

Fri 5/8

6:09 pm-12:21 am

1 stop7h 12m

$186

Kansas CitySan Juan

MCI - SJU

MCISJU

Kansas City

Mon 8/17

6:19 pm-4:43 pm

1 stop21h 24m

San Juan Luis Munoz Marin Intl

Fri 8/21

11:16 am-5:24 pm

1 stop7h 08m

$267

Kansas CitySan Juan

MCI - SJU

MCISJU

Kansas City

Mon 8/17

6:19 pm-4:43 pm

1 stop21h 24m

San Juan Luis Munoz Marin Intl

Sun 8/23

3:06 am-5:24 pm

2 stops15h 18m

$272

SpringfieldSan Juan

SGF - SJU

SGFSJU

Springfield-Branson

Tue 8/11

6:00 am-1:30 pm

1 stop6h 30m

San Juan Luis Munoz Marin Intl

Thu 8/20

1:06 pm-10:29 pm

1 stop10h 23m

$276

SpringfieldSan Juan

SGF - SJU

SGFSJU

Springfield-Branson

Mon 9/14

7:48 pm-3:02 pm

1 stop18h 14m

San Juan Luis Munoz Marin Intl

Mon 9/21

3:42 pm-9:10 am

1 stop18h 28m

$366

SpringfieldSan Juan

SGF - SJU

SGFSJU

Springfield-Branson

Tue 8/11

6:00 am-1:30 pm

1 stop6h 30m

San Juan Luis Munoz Marin Intl

Fri 8/21

1:06 pm-10:29 pm

1 stop10h 23m

$383

SpringfieldSan Juan

SGF - SJU

SGFSJU

Springfield-Branson

Mon 9/14

6:32 pm-11:10 am

2 stops15h 38m

San Juan Luis Munoz Marin Intl

Mon 9/21

3:42 pm-9:10 am

1 stop18h 28m

$406

Kansas CityAguadilla

MCI - BQN

MCIBQN

Kansas City

Mon 5/4

6:17 am-11:09 pm

2 stops15h 52m

Aguadilla Borinquen

Thu 5/7

12:15 am-10:33 am

2 stops11h 18m

$665

Kansas CityAguadilla

MCI - BQN

MCIBQN

Kansas City

Mon 5/4

12:08 pm-11:09 pm

1 stop10h 01m

Aguadilla Borinquen

Thu 5/7

12:15 am-10:33 am

2 stops11h 18m

$701

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 Puerto Rico from

How to get the cheapest flight ticket from Missouri to Puerto Rico

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 Puerto Rico?

If you don’t want to visit Puerto Rico in September, then you should wait until October to fly from Missouri, when ticket prices are also cheap, with an average price of $331.

What is the cheapest Missouri to Puerto Rico flight route?

Fly from Lambert-St Louis to San Juan Luis Munoz Marin Intl for the best Missouri - Puerto Rico flight prices

How far in advance should I book a flight to Puerto Rico?

You are more likely to see cheaper flights to Puerto Rico from Missouri when booking weeks ahead of your departure date. In general, you can expect to find flights to Puerto Rico for around $428 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Puerto Rico from Missouri for as low as $348 on momondo.

What cabin class options are available on Missouri to Puerto Rico flights?

There is only 1 cabin class available to choose from on Missouri to Puerto Rico flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Missouri to Puerto Rico flights?

You could potentially save up to 53% on your flight if you consider stops on a Missouri to Puerto Rico flight.

Cheap Missouri to Puerto Rico flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Missouri to Puerto Rico

Fastest flight time

7h 44m

Direct flights

Sun

Airports in Puerto Rico

20 airports
The fastest flight from Missouri to Puerto Rico takes 7h 44m
Direct flights go from Missouri to Puerto Rico on Sunday. There are no airlines offering direct flights.
There are 20 airports in Puerto Rico. From Missouri there are direct flights to San Juan Luis Munoz Marin Intl (SJU).
Search flight deals

Frequently asked questions about flying from Missouri to Puerto Rico

  • When did momondo last update prices for flights from Missouri to Puerto Rico?

    Prices for flights from Missouri to Puerto Rico were last updated today.

  • How many operators does momondo search for flights from Missouri to Puerto Rico?

  • How old do you have to be to fly from Missouri to Puerto Rico?

    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 Missouri to Puerto Rico.

  • What documentation or ID do you need to fly to Puerto Rico?

    The travel and health documents required for your trip to Puerto Rico can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Puerto Rico. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular plane model from Missouri to Puerto Rico?

Best airlines flying from Missouri to Puerto Rico

Compare and see reviews for airlines that fly from Missouri to Puerto Rico with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $128Free CancellationRating
7.9
8,421 reviews
Search Delta flights
FrontierPriceFrom $138Free CancellationRating
5.7
2,987 reviews
Search Frontier flights
Spirit AirlinesPriceFrom $140Free CancellationRating
6.3
8,621 reviews
Search Spirit Airlines flights
United AirlinesPriceFrom $215Free CancellationRating
7.4
9,604 reviews
Search United Airlines flights
SouthwestPriceFrom $219Free CancellationRating
8.0
4,331 reviews
Search Southwest flights
American AirlinesPriceFrom $230Free CancellationRating
7.1
11,599 reviews
Search American Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Missouri to Puerto Rico?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Missouri to Puerto Rico for you.

Can I find flights from Missouri to Puerto Rico with flexible booking policies on momondo?

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

How can momondo help me find flights from Missouri to Puerto Rico?

Once all potential Missouri to Puerto Rico 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 Missouri to Puerto Rico right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Puerto Rico, momondo offers a useful price alert feature which will track prices for flights to Puerto Rico from Missouri and alert you when they change.

An easier way to manage your Puerto Rico trip

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Mon 5/18
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Find better results for your trip to Puerto Rico

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