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Luis Munoz Marin Intl

$85+ Cheap flights from Baltimore (BWI) to Luis Munoz Marin Intl (SJU)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/25. Fares are subject to change and may not be available on all flights or dates of travel.
BWI — SJU
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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Cheapflights Tip: The best prices from Baltimore/Washington to San Juan Luis Munoz Marin Intl are usually found in March or February, booked 41 days in advance, depart on a Monday or Tuesday and return on a Saturday

Cheap flight deals from Baltimore to Luis Munoz Marin Intl

Discover tips and strategies to find the most affordable flight options for your journey from Baltimore (BWI) to Luis Munoz Marin Intl (SJU). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated September 11, 2025.

Round-trip from

$175
(Kiwi.com)

One-way from

$85
(Cheapflightsfares)

Popular in

December

Cheapest in

March

Average price

$345
From Baltimore/Washington to San Juan Luis Munoz Marin Intl
Search Deals
One-way flight from Baltimore/Washington to San Juan Luis Munoz Marin Intl
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Highest demand for flights based on searches. 7% potential increase in price ($23 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($8 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Baltimore to Luis Munoz Marin Intl

Cheapest flights from Baltimore to Luis Munoz Marin Intl
Explore the most affordable flight options available from Baltimore to Luis Munoz Marin Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.

This Kiwi.com deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/28:42 pmBWI - SJU
Nonstop4h 01mSpirit Airlines
Sat 10/46:44 amSJU - BWI
1 stop8h 48mSpirit Airlines
Deal found 9/9$175
This Kiwi.com deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/258:42 pmBWI - SJU
Nonstop4h 01mSpirit Airlines
Sat 10/46:44 amSJU - BWI
1 stop8h 48mSpirit Airlines
Deal found 9/9$176
This Cheapflightsfares deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/288:42 pmBWI - SJU
Nonstop4h 01mSpirit Airlines
Wed 10/16:44 amSJU - BWI
1 stop8h 48mSpirit Airlines
Deal found 9/10$177
This Kiwi.com deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/156:45 amBWI - SJU
1 stop8h 38mSpirit Airlines
Sun 11/163:59 amSJU - BWI
Nonstop3h 58mSpirit Airlines
Deal found 9/10$178
This Kiwi.com deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/288:42 pmBWI - SJU
Nonstop4h 01mSpirit Airlines
Thu 10/27:05 amSJU - BWI
Nonstop4h 00mSpirit Airlines
Deal found 9/8$179
This Kiwi.com deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/910:00 pmBWI - SJU
Nonstop4h 01mSpirit Airlines
Thu 11/133:59 amSJU - BWI
Nonstop3h 58mSpirit Airlines
Deal found 9/9$180
This Booking.com deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/258:42 pmBWI - SJU
Nonstop4h 01mSpirit Airlines
Sat 9/276:44 amSJU - BWI
1 stop8h 48mSpirit Airlines
Deal found 9/9$181
This Cheapflightsfares deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/231:17 pmBWI - SJU
1 stop7h 39mSpirit Airlines
Sat 9/276:44 amSJU - BWI
1 stop8h 48mSpirit Airlines
Deal found 9/8$186
This Cheapflightsfares deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/241:17 pmBWI - SJU
1 stop7h 39mSpirit Airlines
Wed 10/16:44 amSJU - BWI
1 stop8h 48mSpirit Airlines
Deal found 9/11$187
This Kiwi.com deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/288:42 pmBWI - SJU
Nonstop4h 01mSpirit Airlines
Mon 10/62:49 amSJU - BWI
1 stop9h 51mSpirit Airlines
Deal found 9/8$188
This Cheapflightsfares deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/308:42 pmBWI - SJU
Nonstop3h 54mSpirit Airlines
Mon 11/33:48 amSJU - BWI
1 stop9h 52mSpirit Airlines
Deal found 9/10$189

Cheapflights Fare Finder

 
Customize your flight search to find flights from Baltimore to Luis Munoz Marin Intl 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, Cheapflights users made 2,558,603 searches. Data last updated September 11, 2025.
Use the filters below to find and compare flights from Baltimore to San Juan Luis Munoz Marin Intl Airport that are best for you.

Fly from

Baltimore

Fly to

Luis Munoz Marin Intl

Route

Depart

Return

Price

BaltimoreSan Juan

BWI - SJU

BWISJU

Baltimore/Washington

Sun 9/28

6:29 am-2:44 pm

1 stop8h 15m

San Juan Luis Munoz Marin Intl

Tue 9/30

1:05 am-2:08 pm

2 stops13h 03m

$281

BaltimoreSan Juan

BWI - SJU

BWISJU

Baltimore/Washington

Wed 10/1

10:51 am-11:57 pm

2 stops13h 06m

San Juan Luis Munoz Marin Intl

Fri 10/3

1:05 am-2:08 pm

2 stops13h 03m

$363

BaltimoreSan Juan

BWI - SJU

BWISJU

Baltimore/Washington

Mon 9/22

10:51 am-11:57 pm

2 stops13h 06m

San Juan Luis Munoz Marin Intl

Fri 9/26

1:05 am-2:08 pm

2 stops13h 03m

$373

BaltimoreSan Juan

BWI - SJU

BWISJU

Baltimore/Washington

Tue 11/18

10:56 am-12:36 am

2 stops12h 40m

San Juan Luis Munoz Marin Intl

Wed 12/3

2:05 am-1:50 pm

2 stops12h 45m

$399

BaltimoreSan Juan

BWI - SJU

BWISJU

Baltimore/Washington

Wed 9/24

6:00 am-3:42 pm

1 stop9h 42m

San Juan Luis Munoz Marin Intl

Tue 9/30

1:05 am-2:08 pm

2 stops13h 03m

$399

BaltimoreSan Juan

BWI - SJU

BWISJU

Baltimore/Washington

Wed 12/3

6:25 pm-11:20 pm

Nonstop3h 55m

San Juan Luis Munoz Marin Intl

Thu 12/11

4:40 pm-8:00 pm

Nonstop4h 20m

$402

BaltimoreSan Juan

BWI - SJU

BWISJU

Baltimore/Washington

Wed 12/3

6:25 pm-11:20 pm

Nonstop3h 55m

San Juan Luis Munoz Marin Intl

Wed 12/10

4:40 pm-8:00 pm

Nonstop4h 20m

$402

BaltimoreSan Juan

BWI - SJU

BWISJU

Baltimore/Washington

Sat 11/8

6:00 pm-11:00 pm

Nonstop4h 00m

San Juan Luis Munoz Marin Intl

Wed 11/12

6:40 am-9:55 am

Nonstop4h 15m

$402

BaltimoreSan Juan

BWI - SJU

BWISJU

Baltimore/Washington

Thu 10/2

8:40 pm-12:45 am

Nonstop4h 05m

San Juan Luis Munoz Marin Intl

Tue 10/7

6:10 am-10:20 am

Nonstop4h 10m

$402

BaltimoreSan Juan

BWI - SJU

BWISJU

Baltimore/Washington

Mon 10/6

8:40 pm-12:45 am

Nonstop4h 05m

San Juan Luis Munoz Marin Intl

Wed 10/8

10:50 am-6:10 pm

1 stop7h 20m

$407

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/11

Showing 1-10 of 19 results
1
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The best insider tips for Baltimore to San Juan Luis Munoz Marin Intl Airport flights

Snippets provided in this section are AI-generated based on a summarization of Cheapflights-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
Cheapflights partnered with top experts to bring you the best recommendations for your Baltimore to San Juan Luis Munoz Marin Intl Airport trip
Airlines
Spirit Airlines

Spirit's Big Front Seats offer 11 inches more legroom and larger tray tables.


Spirit's Wi-Fi plans allow streaming; book ahead for best rates.

Read more about Spirit Airlinesby Daniel Scheffler
Frontier

Frontier's UpFront Plus seats offer a guaranteed empty middle seat for added comfort.


Frontier's Zone 1 boarding is available with a carry-on bag or special fare bundle.

Read more about Frontierby Marisa Garcia
Southwest

Southwest offers free messaging and in-flight entertainment streamed to personal devices.


Southwest's Wanna Get Away Plus lets you transfer flight credits to others.

Read more about Southwestby Marisa Garcia
Airports
BWI

For early flights from BWI, arrive 20-30 minutes early during busy hours (6-8 a.m., 3-7 p.m.) to navigate security smoothly.

Read more about BWIby Emily Zemler
SJU

Use rideshare services like Uber from SJU for convenient city travel. Payments are handled through the app, avoiding cash hassles.

Read more about SJUby Brandon Schultz
Our travel experts
Daniel Scheffler

Daniel Scheffler

Expert on Spirit Airlines

Daniel Scheffler

Daniel Scheffler

Daniel Scheffler is a travel writer, podcaster, and producer. Born in Africa, bred in Europe and now living in America he has traveled to 140 countries (and all 50 U.S. states). Plus he has stayed at over 2500 hotels across the globe. His original shows Everywhere and Without Maps (available on Spotify) showcase his beliefs, travel is about humanity and sharing that beauty. And thus it reminds you that you shouldn’t believe everything you think.

Read more
Marisa Garcia

Marisa Garcia

Expert on Frontier and Southwest

Marisa Garcia

Marisa Garcia

Marisa knows planes inside and out, spending 16 years working on aircraft in hangars at airports around the world. She is an aviation industry expert, specialized in airline interiors and regulations. Ten years ago, she pivoted to journalism. She shares her insights in leading aviation, travel, and business publications and on her site FlightChic.

Read more
Emily Zemler

Emily Zemler

Expert on BWI

Emily Zemler

Emily Zemler

Emily is a freelance writer and book author based in London covering entertainment and travel. Her work has appeared in Los Angeles Times, Observer, and Conde Nast Traveler She has ventured to more than 40 countries and all seven continents, always in search of a great art museum. She has written extensively about hotels, luxury travel, and aviation.

Read more
Brandon Schultz

Brandon Schultz

Expert on SJU

Brandon Schultz

Brandon Schultz

Brandon Schultz is an award-winning food and travel writer based in New York City. His work has appeared in Forbes, AAA, Thrillist, Travel + Leisure, and The Daily Meal, among many others, and he is the author of 6 books, including 3 cookbooks.

Read more

Best time to book a flight from Baltimore to Luis Munoz Marin Intl

Have a flexible travel schedule? Discover the best time to fly to Luis Munoz Marin Intl from Baltimore with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Baltimore to San Juan Luis Munoz Marin Intl Airport

How far ahead should I book a flight from Baltimore to San Juan Luis Munoz Marin Intl Airport?

Use this chart to determine the optimal time to book a round-trip flight from Baltimore to Luis Munoz Marin Intl. Price data was last updated on August 29, 2025.

The best time to book flights from Baltimore to San Juan Luis Munoz Marin Intl Airport is 41 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from Baltimore to San Juan Luis Munoz Marin Intl Airport?

Currently, September is the cheapest month in which you can book a flight from Baltimore to San Juan Luis Munoz Marin Intl Airport (average of $254). Flying from Baltimore to San Juan Luis Munoz Marin Intl Airport in June is currently the most expensive (average of $339). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from BWI to SJU?

Find hourly flight availability from Baltimore to Luis Munoz Marin Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 11, 2025.

A simple way to save on the total cost of your ticket is to fly from Baltimore to San Juan Luis Munoz Marin Intl Airport in the morning. If you’re flexible enough to do this you can expect to save up to 10% on your trip compared to booking a flight at noon.

What is the cheapest day to fly from Baltimore to San Juan Luis Munoz Marin Intl Airport?

Use this chart to determine the cheapest time to fly round-trip from Baltimore to Luis Munoz Marin Intl. Price data was last updated on September 7, 2025.

Travelers seeking maximum savings on their Baltimore to San Juan Luis Munoz Marin Intl Airport flight should consider departing on Monday afternoons when fares are most often at their lowest. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing Luis Munoz Marin Intl

Get insights into the airlines that provide service to Luis Munoz Marin Intl. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Luis Munoz Marin Intl. Reviews last updated September 11, 2025.
Get a feel of what it's like to fly with Southwest, Delta, and American Airlines from Baltimore to San Juan Luis Munoz Marin Intl Airport by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,248 reviews

Entertainment

7.5

Food

7.0

Boarding

8.1

Comfort

8.0

Overall

8.0

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Southwest
8.0
Very good
4,248 reviews
Southwest
8.0
Very good
4,248 reviews

Entertainment

7.5

Food

7.0

Boarding

8.1

Comfort

8.0

Overall

8.0

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Delta
8.0
Very good
7,960 reviews
Southwest
8.0
Very good
4,248 reviews

Entertainment

7.5

Food

7.0

Boarding

8.1

Comfort

8.0

Overall

8.0

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,248 reviews

Entertainment

7.5

Food

7.0

Boarding

8.1

Comfort

8.0

Overall

8.0

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Spirit Airlines
6.3
Okay
8,023 reviews
Southwest
8.0
Very good
4,248 reviews

Entertainment

7.5

Food

7.0

Boarding

8.1

Comfort

8.0

Overall

8.0

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Frontier
5.8
Fair
3,177 reviews
Southwest
8.0
Very good
4,248 reviews

Entertainment

7.5

Food

7.0

Boarding

8.1

Comfort

8.0

Overall

8.0

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

Related info for your journey

Find useful and relevant information for your journey from Baltimore to Luis Munoz Marin Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Baltimore to San Juan Luis Munoz Marin Intl?

    Baltimore/Washington (BWI), located 8.5 mi from the city center, is the airport you fly out of when you book flights from Baltimore to San Juan Luis Munoz Marin Intl. 7 airlines have flights from Baltimore/Washington to San Juan Luis Munoz Marin Intl on a regular basis. Booking flights from Baltimore/Washington to San Juan Luis Munoz Marin Intl should not be difficult; the airport handles an average of 1 outbound flight to San Juan Luis Munoz Marin Intl per day.

  • How long is the flight from Baltimore to San Juan Luis Munoz Marin Intl Airport?

    A quick flight from Baltimore to San Juan Luis Munoz Marin Intl Airport can take about 8h 15m. United Airlines provides one of the quickest options available for as low as $281. Baltimore and San Juan Luis Munoz Marin Intl Airport are separated by a distance of 1568 mi.

  • What are the cheapest airlines flying from Baltimore to San Juan Luis Munoz Marin Intl Airport round-trip?

    Frontier, at $121, was found to be the cheapest airline from Baltimore to San Juan Luis Munoz Marin Intl Airport.Alternate airlines to your destination round-trip include Spirit Airlines and Delta. Users have found that Frontier is 59% cheaper than the other options available to this destination.

  • What are the most reliable airlines from Baltimore to San Juan Luis Munoz Marin Intl Airport?

    No one likes to see their flight delayed. When booking a flight from Baltimore to San Juan Luis Munoz Marin Intl Airport consider choosing Southwest (64%), Spirit Airlines (52%) or Frontier (35%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from Baltimore to San Juan Luis Munoz Marin Intl Airport?

    On average you can expect to pay $265 for a flight from Baltimore to San Juan Luis Munoz Marin Intl Airport. The cheapest flight overall is $84 while the most popular route, (Baltimore/Washington - San Juan Luis Munoz Marin Intl) is currently priced at $144.

  • Can I find deals for flights from Baltimore to Luis Munoz Marin Intl that include hotel bookings?

    Yes. In addition to deals on Baltimore to Luis Munoz Marin Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Baltimore to Luis Munoz Marin Intl?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Baltimore to Luis Munoz Marin Intl.

  • Can I find deals for business class flights from Baltimore to Luis Munoz Marin Intl?

    Yes. Cheapflights offers flight deals from Baltimore to Luis Munoz Marin Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Baltimore to San Juan Luis Munoz Marin Intl Airport?

    Currently, September is the cheapest month in which you can book a flight from Baltimore to San Juan Luis Munoz Marin Intl Airport (average of $254). Flying from Baltimore to San Juan Luis Munoz Marin Intl Airport in June is currently the most expensive (average of $339). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near San Juan Luis Munoz Marin Intl Airport?

Book flights to San Juan Luis Munoz Marin Intl Airport if you plan to visit one of these locations
Dorado
Fajardo
Rio Grande
Luquillo
Humacao

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Alternative routes for Baltimore to Luis Munoz Marin Intl

See prices for flight routes from nearby airports that may be better suited for you.
Dulles Intl to Luis Munoz Marin Intl flights
Reagan-National to Luis Munoz Marin Intl flights
Philadelphia to Luis Munoz Marin Intl flights
Salisbury to Luis Munoz Marin Intl flights

Top 7 airlines flying from Baltimore to Luis Munoz Marin Intl

Discover the top 7 airlines that operate flights from Baltimore to Luis Munoz Marin Intl. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$121Average$272FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$124Average$257FlexibilityNo cancel feeOn-time65%
DeltaCheapest$198Average$400FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$199Average$424FlexibilityNo cancel feeOn-time69%
JetBlueCheapest$207Average$390FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$215Average$478FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$344Average$482FlexibilityNo cancel feeOn-time63%

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