What is the cheapest airline that flies from Baltimore/Washington to San Juan?

Spirit Airlines and Frontier are the most popular carriers operating from Baltimore/Washington to San Juan

What airlines fly to San Juan?

Frontier, Spirit Airlines and JetBlue are the top three most popular airlines that fly to San Juan from Baltimore according to our data. Frontier is the first choice among our users, with 31% of people opting to fly with this airline when traveling to San Juan. Keep in mind that there are 7 different airlines that fly to San Juan on a routine basis, so you have a few additional options to choose from.

Which airline has the best punctuality record on Baltimore to San Juan flights?

According to our data, Spirit Airlines have had the least number of delays on this route over the last 12 months; with about 19% of their flights experiencing any sort of delay.

How often are flights from Baltimore to San Juan delayed?

Historically, on average around 24% of flights between Baltimore and San Juan have experienced a delay on any given week. The average delay length over the past 12 months has been 136 minutes.

How many flights depart from Baltimore to San Juan on average per week?

The number of flights available between Baltimore and San Juan is 28 per week as of December 2025. The most frequent departure day is Sat, with 21% of weekly flights leaving on this day.

What day of the week experiences the fewest flight delays on this route?

Wednesday is statistically the day of the week which experiences the fewest number of delays on this flight route. Saturday has historically seen more delays on average compared to the rest of the week.

How many flights depart from Baltimore to San Juan on average per day?

4 flights are operational daily from Baltimore to San Juan as of December 2025. The most popular departure time for this route is 11:00AM, with 59% of flights per day taking off at noon.

What is the most punctual flight time for Baltimore to San Juan flights?

Generally, flights departing in the morning tend to experience fewer delays. Flights in the early afternoon have, in the past, seen delays more frequently in comparison.

When did momondo last update prices for flights from Baltimore/Washington Airport to San Juan?

Prices for flights from Baltimore/Washington Airport to San Juan are refreshed on a daily basis.

How many operators does momondo search for flights from Baltimore/Washington Airport to San Juan?

As of December 2025, there are 7 operators available to choose from for flights from Baltimore/Washington Airport to San Juan.

How old do you have to be to fly from Baltimore/Washington Airport to San Juan?

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 Baltimore/Washington Airport to San Juan.

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

The travel and health documents you'll need for your trip to San Juan may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at San Juan. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$102 Cheap Flights from Baltimore to San Juan in 2025/26

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Find the cheapest flights from Baltimore to San Juan

Round-trip

One-way

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Cheap round-trip flights

Enter your travel dates to find the best prices.

10:09 am - 2:57 pm

BWI

SJU

3h 48mnonstop

6:55 am - 7:23 am

SJU

BWI

25h 28m1 stop

$205Frontier

Sun, Jan 11 - Sun, Jan 18

10:09 am - 2:57 pm

BWI

SJU

3h 48mnonstop

6:55 am - 7:23 am

SJU

BWI

25h 28m1 stop

$206Frontier

Sat, Jan 10 - Sun, Jan 18

8:11 pm - 5:58 pm

BWI

SJU

20h 47m2 stops

4:22 pm - 12:36 am

SJU

BWI

9h 14m1 stop

$207Frontier

Mon, Jan 26 - Thu, Feb 5

10:09 am - 2:57 pm

BWI

SJU

3h 48mnonstop

6:00 am - 9:14 am

SJU

BWI

4h 14mnonstop

$208Frontier

Thu, Jan 8 - Mon, Jan 12

4:44 pm - 11:33 pm

BWI

SJU

5h 49m1 stop

4:36 pm - 6:59 pm

SJU

BWI

27h 23m1 stop

$209Multiple Airlines

Fri, Feb 6 - Mon, Feb 9

4:01 pm - 11:59 pm

BWI

SJU

6h 58m1 stop

6:11 pm - 12:36 am

SJU

BWI

7h 25m1 stop

$210Frontier

Fri, Jan 23 - Sat, Jan 31

7:09 pm - 2:53 am

BWI

SJU

6h 44m1 stop

7:05 am - 5:47 pm

SJU

BWI

11h 42m1 stop

$211Frontier

Fri, Feb 20 - Sat, Feb 28

12:09 pm - 4:57 pm

BWI

SJU

3h 48mnonstop

6:15 am - 12:07 pm

SJU

BWI

6h 52m1 stop

$212Frontier

Tue, Jan 6 - Sun, Jan 11

6:00 am - 6:58 pm

BWI

SJU

11h 58m2 stops

3:53 am - 2:13 pm

SJU

BWI

11h 20m1 stop

$213Multiple Airlines

Fri, Feb 27 - Sun, Mar 1

4:01 pm - 11:59 pm

BWI

SJU

6h 58m1 stop

4:36 pm - 10:41 pm

SJU

BWI

7h 05m1 stop

$214Frontier

Fri, Jan 30 - Sat, Feb 7

United Airlines flights from Baltimore to San Juan

Our best United Airlines deals on Baltimore to San Juan flight tickets

United Airlines

Jan 12

BWI10:05 amBaltimore/Washington

13h 31m

2 stops

SJU12:36 amSan Juan Luis Munoz Marin Intl

Jan 15

SJU7:45 amSan Juan Luis Munoz Marin Intl

9h 21m

1 stop

BWI4:06 pmBaltimore/Washington

$251

Find similar

United Airlines

Jan 3

BWI6:04 pmBaltimore/Washington

11h 07m

1 stop

SJU6:11 amSan Juan Luis Munoz Marin Intl

Jan 16

SJU2:05 amSan Juan Luis Munoz Marin Intl

13h 06m

2 stops

BWI2:11 pmBaltimore/Washington

$268

Find similar

Spirit Airlines flights from Baltimore to San Juan

Our best Spirit Airlines deals on Baltimore to San Juan flight tickets

Spirit Airlines

Jan 3

BWI11:14 amBaltimore/Washington

3h 46m

SJU4:00 pmSan Juan Luis Munoz Marin Intl

Jan 11

SJU9:29 pmSan Juan Luis Munoz Marin Intl

4h 09m

BWI12:38 amBaltimore/Washington

$219

Find similar

Spirit Airlines

Feb 19

BWI6:00 amBaltimore/Washington

3h 47m

SJU10:47 amSan Juan Luis Munoz Marin Intl

Feb 20

SJU9:29 pmSan Juan Luis Munoz Marin Intl

4h 09m

BWI12:38 amBaltimore/Washington

$221

Find similar

Spirit Airlines

Jan 4

BWI11:14 amBaltimore/Washington

3h 46m

SJU4:00 pmSan Juan Luis Munoz Marin Intl

Jan 9

SJU6:00 amSan Juan Luis Munoz Marin Intl

6h 17m

1 stop

BWI11:17 amBaltimore/Washington

$222

Find similar

Fly from

Fly to

Route

Depart

Return

Price

BaltimoreSan Juan

BWI - SJU

BWISJU

Baltimore/Washington

Sun 1/11

10:09 am-2:57 pm

Nonstop3h 48m

San Juan Luis Munoz Marin Intl

Sun 1/18

6:55 am-7:23 am

1 stop25h 28m

$205

BaltimoreSan Juan

BWI - SJU

BWISJU

Baltimore/Washington

Sat 1/10

10:09 am-2:57 pm

Nonstop3h 48m

San Juan Luis Munoz Marin Intl

Sun 1/18

6:55 am-7:23 am

1 stop25h 28m

$206

BaltimoreSan Juan

BWI - SJU

BWISJU

Baltimore/Washington

Mon 1/26

8:11 pm-5:58 pm

2 stops20h 47m

San Juan Luis Munoz Marin Intl

Thu 2/5

4:22 pm-12:36 am

1 stop9h 14m

$207

BaltimoreSan Juan

BWI - SJU

BWISJU

Baltimore/Washington

Thu 1/8

10:09 am-2:57 pm

Nonstop3h 48m

San Juan Luis Munoz Marin Intl

Mon 1/12

6:00 am-9:14 am

Nonstop4h 14m

$208

BaltimoreSan Juan

BWI - SJU

BWISJU

Baltimore/Washington

Fri 2/6

4:44 pm-11:33 pm

1 stop5h 49m

San Juan Luis Munoz Marin Intl

Mon 2/9

4:36 pm-6:59 pm

1 stop27h 23m

$209

BaltimoreSan Juan

BWI - SJU

BWISJU

Baltimore/Washington

Fri 1/23

4:01 pm-11:59 pm

1 stop6h 58m

San Juan Luis Munoz Marin Intl

Sat 1/31

6:11 pm-12:36 am

1 stop7h 25m

$210

BaltimoreSan Juan

BWI - SJU

BWISJU

Baltimore/Washington

Fri 2/20

7:09 pm-2:53 am

1 stop6h 44m

San Juan Luis Munoz Marin Intl

Sat 2/28

7:05 am-5:47 pm

1 stop11h 42m

$211

BaltimoreSan Juan

BWI - SJU

BWISJU

Baltimore/Washington

Tue 1/6

12:09 pm-4:57 pm

Nonstop3h 48m

San Juan Luis Munoz Marin Intl

Sun 1/11

6:15 am-12:07 pm

1 stop6h 52m

$212

BaltimoreSan Juan

BWI - SJU

BWISJU

Baltimore/Washington

Fri 2/27

6:00 am-6:58 pm

2 stops11h 58m

San Juan Luis Munoz Marin Intl

Sun 3/1

3:53 am-2:13 pm

1 stop11h 20m

$213

BaltimoreSan Juan

BWI - SJU

BWISJU

Baltimore/Washington

Fri 1/30

4:01 pm-11:59 pm

1 stop6h 58m

San Juan Luis Munoz Marin Intl

Sat 2/7

4:36 pm-10:41 pm

1 stop7h 05m

$214

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How to get the cheapest flight ticket from Baltimore 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

Prices

Airlines

Delays

Other information

What is the cheapest month to fly to San Juan?

If you’re not able to fly to San Juan in March, then February is your next best option. Flight prices from Baltimore to San Juan during February average around $275.

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

The cheapest day to depart from Baltimore to San Juan is on a Tuesday when prices can be found for as low as $365. The most expensive day to fly to San Juan is Saturday, with ticket prices averaging around $458.

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 at noon when flights can be purchased for as low as $238. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are $427 on average. Flights to San Juan from Baltimore in the afternoon are generally more expensive because this time of day is more convenient for travelers’ schedules.

What is the cheapest Baltimore/Washington to San Juan flight route?

Fly from Baltimore/Washington to San Juan Luis Munoz Marin Intl for the best Baltimore/Washington - 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 Baltimore when booking weeks ahead of your departure date. In general, you can expect to find flights to San Juan for around $317 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Juan from Baltimore for as low as $260 on momondo.

What cabin class options are available on Baltimore/Washington to San Juan flights?

There are 2 cabin classes available to choose from on Baltimore/Washington 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 Baltimore to San Juan flight deals and tips

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

Fastest flight time	3h 39m
Direct flights	Every day
Airports in San Juan	2 airports

The fastest flight from Baltimore to San Juan takes 3h 39m

Direct flights go from Baltimore to San Juan every day.

There are 2 airports in San Juan. From Baltimore there are direct flights to San Juan Luis Munoz Marin Intl (SJU).

Search flight deals

How far is Baltimore/Washington to San Juan by plane?
A flight from Baltimore/Washington to San Juan will travel around 1569.0 mi. Flights usually cover this in 3h 39m, depending on flying conditions and air traffic around both airports.
When did momondo last update prices for flights from Baltimore/Washington Airport to San Juan?
Prices for flights from Baltimore/Washington Airport to San Juan are refreshed on a daily basis.
How many operators does momondo search for flights from Baltimore/Washington Airport to San Juan?
As of December 2025, there are 7 operators available to choose from for flights from Baltimore/Washington Airport to San Juan.
How old do you have to be to fly from Baltimore/Washington Airport to San Juan?
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 Baltimore/Washington Airport to San Juan.
What documentation or ID do you need to fly to San Juan?
The travel and health documents you'll need for your trip to San Juan may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at San Juan. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Baltimore to San Juan

Compare and see reviews for airlines that fly from Baltimore to San Juan with momondo

Airline	Rating	Free Cancellation	Price
Spirit Airlines	PriceFrom $127	Free Cancellation	Rating 6.3 8,210 reviews	Search Spirit Airlines flights
Frontier	PriceFrom $136	Free Cancellation	Rating 5.8 3,071 reviews	Search Frontier flights
JetBlue	PriceFrom $167	Free Cancellation	Rating 7.2 2,899 reviews	Search JetBlue flights
Delta	PriceFrom $192	Free Cancellation	Rating 7.9 8,019 reviews	Search Delta flights
United Airlines	PriceFrom $199	Free Cancellation	Rating 7.4 9,114 reviews	Search United Airlines flights
American Airlines	PriceFrom $226	Free Cancellation	Rating 7.2 11,066 reviews	Search American Airlines flights
Southwest	PriceFrom $347	Free Cancellation	Rating 8.0 4,256 reviews	Search Southwest flights

Why use momondo?

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

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 Baltimore to San Juan for you.

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

Yes. momondo allows you to filter the results for Baltimore to San Juan flights to just show those with flexible booking policies.

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

Once you have performed a search for Baltimore to San Juan flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

Of course. momondo tracks the price of Baltimore to San Juan flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

An easier way to manage your San Juan trip

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Fly into one of these airports located in San Juan

San Juan Isla Grande Airport

San Juan Luis Munoz Marin Intl Airport

Cheap flights from Baltimore to San Juan from $102

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Baltimore to San Juan departing on 3/9. 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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Find the cheapest flights from Baltimore to San Juan

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United Airlines flights from Baltimore to San Juan

Our best United Airlines deals on Baltimore to San Juan flight tickets

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See travel insights to San Juan from

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

What is the cheapest month to fly to San Juan?

If you’re not able to fly to San Juan in March, then February is your next best option. Flight prices from Baltimore to San Juan during February average around $275.

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

The cheapest day to depart from Baltimore to San Juan is on a Tuesday when prices can be found for as low as $365. The most expensive day to fly to San Juan is Saturday, with ticket prices averaging around $458.

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

What is the cheapest Baltimore/Washington to San Juan flight route?

Fly from Baltimore/Washington to San Juan Luis Munoz Marin Intl for the best Baltimore/Washington - San Juan flight prices

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

What cabin class options are available on Baltimore/Washington to San Juan flights?

There are 2 cabin classes available to choose from on Baltimore/Washington to San Juan flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

What is the cheapest airline that flies from Baltimore/Washington to San Juan?

Spirit Airlines and Frontier are the most popular carriers operating from Baltimore/Washington to San Juan

What airlines fly to San Juan?

How often are flights from Baltimore to San Juan delayed?

Historically, on average around 24% of flights between Baltimore and San Juan have experienced a delay on any given week. The average delay length over the past 12 months has been 136 minutes.

What is the most punctual flight time for Baltimore to San Juan flights?

Generally, flights departing in the morning tend to experience fewer delays. Flights in the early afternoon have, in the past, seen delays more frequently in comparison.

What day of the week experiences the fewest flight delays on this route?

Wednesday is statistically the day of the week which experiences the fewest number of delays on this flight route. Saturday has historically seen more delays on average compared to the rest of the week.

Which airline has the best punctuality record on Baltimore to San Juan flights?

According to our data, Spirit Airlines have had the least number of delays on this route over the last 12 months; with about 19% of their flights experiencing any sort of delay.

How many flights depart from Baltimore to San Juan on average per day?

4 flights are operational daily from Baltimore to San Juan as of December 2025. The most popular departure time for this route is 11:00AM, with 59% of flights per day taking off at noon.

How many flights depart from Baltimore to San Juan on average per week?

The number of flights available between Baltimore and San Juan is 28 per week as of December 2025. The most frequent departure day is Sat, with 21% of weekly flights leaving on this day.

Cheap Baltimore to San Juan flight deals and tips

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

Fastest flight time

Direct flights

Airports in San Juan

How far is Baltimore/Washington to San Juan by plane?

When did momondo last update prices for flights from Baltimore/Washington Airport to San Juan?

How many operators does momondo search for flights from Baltimore/Washington Airport to San Juan?

How old do you have to be to fly from Baltimore/Washington Airport to San Juan?

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

Best airlines flying from Baltimore to San Juan

Compare and see reviews for airlines that fly from Baltimore to San Juan with momondo

Why use momondo?

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

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

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

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

An easier way to manage your San Juan trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

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