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San Juan

$235+ Cheap flights from Dayton (DAY) to San Juan

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/4. Fares are subject to change and may not be available on all flights or dates of travel.
DAY — SJU
oct. 17 — oct. 241
ven. 10/17
ven. 10/24
1 adult, Economy
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Cheapflights Tip: The best prices from Dayton to San Juan are usually found in February or October, booked 77 days in advance, depart on a Tuesday or Monday and return on a Monday

Cheap flight deals from Dayton to San Juan

Discover tips and strategies to find the most affordable flight options for your journey from Dayton (DAY) to San Juan (PR1). 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 septembre 17, 2025.

Round-trip from

$235
(American Airlines)

Popular in

August

Cheapest in

February

Average price

$684
From Dayton to San Juan
Search Deals
Highest demand for flights based on searches. 15% potential increase in price ($109 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($16 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 Dayton to San Juan

Cheapest flights from Dayton to San Juan
Explore the most affordable flight options available from Dayton to San Juan. Find the lowest fares from popular airlines and budget airlines, with prices last updated on septembre 17, 2025.

This American Airlines deal was found by Cheapflights users on 9/16. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 11/42:00 pmDAY - SJU
2 stops8h 52mAmerican Airlines
mar. 11/116:25 amSJU - DAY
1 stop15h 11mAmerican Airlines
Deal found 9/16$235
This American Airlines deal was found by Cheapflights users on 9/15. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mer. 10/226:05 amDAY - SJU
2 stops9h 50mAmerican Airlines
dim. 10/265:30 amSJU - DAY
1 stop17h 40mAmerican Airlines
Deal found 9/15$301
This United Airlines deal was found by Cheapflights users on 9/15. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 9/307:21 amDAY - SJU
1 stop7h 23mUnited Airlines
sam. 10/47:00 amSJU - DAY
2 stops13h 09mUnited Airlines
Deal found 9/15$399
This American Airlines deal was found by Cheapflights users on 9/16. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sam. 10/1112:19 pmDAY - SJU
2 stops8h 55mAmerican Airlines
sam. 10/185:30 amSJU - DAY
1 stop13h 11mAmerican Airlines
Deal found 9/16$401
This American Airlines deal was found by Cheapflights users on 9/17. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mer. 10/156:00 amDAY - SJU
1 stop16h 10mAmerican Airlines
dim. 10/195:30 amSJU - DAY
1 stop17h 40mAmerican Airlines
Deal found 9/17$403
This United Airlines deal was found by Cheapflights users on 9/16. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 11/42:50 pmDAY - SJU
1 stop6h 32mUnited Airlines
lun. 11/102:05 amSJU - DAY
2 stops12h 23mUnited Airlines
Deal found 9/16$405
This American Airlines deal was found by Cheapflights users on 9/15. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mer. 11/126:00 amDAY - SJU
2 stops10h 52mAmerican Airlines
sam. 11/226:25 amSJU - DAY
1 stop15h 11mAmerican Airlines
Deal found 9/15$408
This United Airlines deal was found by Cheapflights users on 9/15. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mer. 11/192:50 pmDAY - SJU
1 stop6h 32mUnited Airlines
sam. 11/228:30 amSJU - DAY
1 stop6h 44mUnited Airlines
Deal found 9/15$426

Cheapflights Fare Finder

 
Customize your flight search to find flights from Dayton 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, Cheapflights users made 2,558,603 searches. Data last updated septembre 17, 2025.
Use the filters below to find and compare flights from Dayton to San Juan that are best for you.

Fly from

Dayton

Fly to

San Juan

Route

Depart

Return

Price

DaytonSan Juan

DAY - SJU

DAYSJU

Dayton

mer. 1/28

8:03 am-4:08 pm

1 stop7h 05m

San Juan Luis Munoz Marin Intl

dim. 2/8

6:30 am-8:30 pm

1 stop15h 00m

$350

DaytonSan Juan

DAY - SJU

DAYSJU

Dayton

mer. 10/22

6:05 am-3:55 pm

2 stops9h 50m

San Juan Luis Munoz Marin Intl

dim. 10/26

5:30 am-11:10 pm

1 stop17h 40m

$350

DaytonSan Juan

DAY - SJU

DAYSJU

Dayton

mar. 11/4

2:00 pm-11:52 pm

2 stops8h 52m

San Juan Luis Munoz Marin Intl

mar. 11/11

6:00 am-7:55 pm

2 stops14h 55m

$370

DaytonSan Juan

DAY - SJU

DAYSJU

Dayton

mar. 12/23

12:08 pm-11:16 pm

1 stop10h 08m

San Juan Luis Munoz Marin Intl

mar. 1/6

7:30 am-2:46 pm

1 stop8h 16m

$399

DaytonSan Juan

DAY - SJU

DAYSJU

Dayton

mar. 9/30

7:21 am-2:44 pm

1 stop7h 23m

San Juan Luis Munoz Marin Intl

ven. 10/3

1:05 am-11:07 am

2 stops10h 02m

$399

DaytonSan Juan

DAY - SJU

DAYSJU

Dayton

sam. 12/27

12:08 pm-11:16 pm

1 stop10h 08m

San Juan Luis Munoz Marin Intl

mar. 1/6

7:30 am-2:46 pm

1 stop8h 16m

$399

DaytonSan Juan

DAY - SJU

DAYSJU

Dayton

mar. 9/30

11:15 am-10:00 pm

1 stop10h 45m

San Juan Luis Munoz Marin Intl

sam. 10/4

7:30 am-3:51 pm

1 stop8h 21m

$399

DaytonSan Juan

DAY - SJU

DAYSJU

Dayton

mar. 3/10

11:44 am-7:55 pm

1 stop8h 11m

San Juan Luis Munoz Marin Intl

mer. 3/11

7:10 am-2:01 pm

1 stop6h 51m

$400

DaytonSan Juan

DAY - SJU

DAYSJU

Dayton

sam. 10/11

8:33 am-11:54 pm

1 stop15h 21m

San Juan Luis Munoz Marin Intl

sam. 10/18

5:30 am-6:41 pm

1 stop13h 11m

$401

DaytonSan Juan

DAY - SJU

DAYSJU

Dayton

mar. 11/4

2:50 pm-10:22 pm

1 stop6h 32m

San Juan Luis Munoz Marin Intl

lun. 11/10

2:05 am-1:28 pm

2 stops12h 23m

$405

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/16

Showing 1-10 of 13 results
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Best time to book a flight from Dayton to San Juan

Have a flexible travel schedule? Discover the best time to fly to San Juan from Dayton 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 Dayton to San Juan

How far ahead should I book a flight from Dayton to San Juan?

Use this chart to determine the optimal time to book a round-trip flight from Dayton to San Juan. Price data was last updated on September 12, 2025.

To ensure you get the cheapest price possible for a flight from Dayton to San Juan, you should look to book at least 77 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Dayton to San Juan?

Currently, September is the cheapest month in which you can book a flight from Dayton to San Juan (average of $254). Flying from Dayton to San Juan 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 DAY to SJU?

Find hourly flight availability from Dayton to San Juan. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated septembre 17, 2025.

It’s optimal to fly from Dayton to San Juan in the afternoon. By choosing this option you can save up to 38% on the cost of your flight, compared to a flight in the morning.

How much does it cost to fly round-trip from Dayton to San Juan?

Reviews of airlines servicing San Juan

Get insights into the airlines that provide service to San Juan. 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 San Juan. Reviews last updated septembre 17, 2025.
See what other customers who have flown with Delta, United Airlines, and American Airlines from Dayton to San Juan have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,961 reviews

Entertainment

7.9

Overall

8.0

Boarding

8.2

Comfort

7.9

Crew

8.5

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,961 reviews
Delta
8.0
Very good
7,961 reviews

Entertainment

7.9

Overall

8.0

Boarding

8.2

Comfort

7.9

Crew

8.5

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,926 reviews
Delta
8.0
Very good
7,961 reviews

Entertainment

7.9

Overall

8.0

Boarding

8.2

Comfort

7.9

Crew

8.5

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,961 reviews

Entertainment

7.9

Overall

8.0

Boarding

8.2

Comfort

7.9

Crew

8.5

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

Find useful and relevant information for your journey from Dayton to San Juan. 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 Dayton to San Juan?

    Most people fly from Dayton (DAY) if they book a flight from Dayton to San Juan. On average, Dayton has 0 outbound flights to San Juan per day from 3 airlines. Dayton is conveniently located just 10.0 mi from Dayton’s city center.

  • How long is the flight from Dayton to San Juan?

    Airlines like American Airlines, Delta, and United Airlines fly from Dayton to San Juan in about 7h 05m. The time it takes to get you to your destination can typically vary by up to 3h 03m. Airlines will cover a distance of 1837 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines flying from Dayton to San Juan round-trip?

    Delta, at $264, was found to be the cheapest airline from Dayton to San Juan.Alternate airlines to your destination round-trip include United Airlines and American Airlines. These flights start at 56% lower than the current average price 3 months from now.

  • Can I find deals for flights from Dayton to San Juan that include hotel bookings?

    Yes. In addition to deals on Dayton to San Juan flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Dayton to San Juan?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Dayton to San Juan.

  • Can I find deals for business class flights from Dayton to San Juan?

    Yes. Cheapflights offers flight deals from Dayton to San Juan 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 Dayton to San Juan?

    Currently, September is the cheapest month in which you can book a flight from Dayton to San Juan (average of $254). Flying from Dayton to San Juan 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

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Alternative routes for Dayton to San Juan

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Top 3 airlines flying from Dayton to San Juan

Discover the top 3 airlines that operate flights from Dayton to San Juan. 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 septembre 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$264Average$595FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$364Average$584FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$385Average$612FlexibilityNo cancel feeOn-time71%

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