Cheap flights from Harrisburg International to San Juan

Compare Harrisburg International to San Juan flight deals

Find the cheapest month or even day of the year to fly to San Juan

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Flight deals from Harrisburg International to San Juan

Looking for a cheap last-minute deal or the best round-trip flight from Harrisburg International to San Juan? Find the lowest prices on one-way and round-trip tickets right here.

Find the cheapest month to fly from Harrisburg International to San Juan

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Harrisburg International to San Juan flights are currently cheapest in January.

Alternative Harrisburg International to San Juan routes

Looking for the cheapest, fastest or easiest route from Harrisburg International to San Juan? You could fly into the following airports instead.

Harrisburg to San Juan: Flight information

The things to know before you go.
Cheapest flight found$232
Cheapest month to flyJanuary

Finding cheap flights from Harrisburg International to San Juan: Frequently asked questions

There are 6 airports in San Juan: San Juan Isla Grande, San Juan Luis Munoz Marin, Roosevelt Roads, Ponce, Vieques, and Culebra.
The best price we found for a round-trip flight from Harrisburg International to San Juan is $232. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from Harrisburg International to San Juan. But we found flights with one or more stops from $232.
There are no flights flying from Harrisburg International to San Juan, as of January 2026.
The cheapest month to fly from Harrisburg International to San Juan is usually January.
If you're flying from Harrisburg International Airport, the cheapest airport near San Juan is San Juan Luis Munoz Marin – which is 11.3 km away from the center of San Juan. We've found flights to this airport from $232.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Harrisburg International Airport to San Juan on Sunday, January 25, 2026.
No airlines currently offer direct flights between Harrisburg International Airport and San Juan. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to San Juan but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar, and it looks like the cheapest time to book a flight to San Juan is around 40 days in advance, so don’t leave your flight to the last minute.
In January, the average temperature is usually around 25°C. August is typically the warmest month in San Juan, when it usually averages around 29°C. You can expect the least rain in February. The coldest month is January, with temperatures averaging 23°C. The rainiest month is September.
Currently, United offers the cheapest flight tickets to San Juan.

Traveling from Harrisburg International Airport (MDT) to San Juan: what you need to know

  • Harrisburg (the location of Harrisburg International Airport) and San Juan share the same timezone — UTC-4.

  • For a stress-free journey, arrive at the airport two hours ahead of international flights and one hour before domestic departures. This ensures you have enough time to catch your MDT to San Juan flight.

  • If you're flying during a major holiday or another peak period, give yourself extra time. A good general rule is two hours ahead of domestic flights and up to four hours before international departures. Check-in and security lines will be longer.

  • Think about adding a stopover to potentially unlock a cheaper flight ticket from MDT to San Juan. Simply uncheck 'Direct flights only' during your search. Break up your trip (and maybe save some cash) by stopping at one of these connecting airports:

    • Hartsfield-Jackson Atlanta International Airport (ATL)

    • Charlotte Douglas International Airport (CLT)

    • Logan International Airport (BOS)

  • The journey from central Harrisburg to MDT takes about 40 minutes by public transport. If you ride-share, drive or get a cab, you'll cover the 14 kilometers in 20 minutes or so, depending on traffic conditions.

  • Looking for a hotel near MDT? If you've booked an early flight from Harrisburg International Airport to San Juan, these stays will get you from your pillow to the plane in no time:

  • When it comes to the on-time performance of Harrisburg International Airport, data shows 77.41% of flights meet their scheduled arrival time.

  • MDT is located at One Terminal Drive.

How to find the cheapest flights from Harrisburg International Airport (MDT) to San Juan

  • $116 is currently the lowest price for a one-way Harrisburg International Airport to San Juan flight. A return flight ticket starts at $232. These fares may change based on demand and availability.

  • Booking ahead of time is often the key to securing a cheap flight from MDT to San Juan. Flight prices rise as demand increases, so the closer you get to departure, the more you'll likely pay.

  • Finding cheap tickets from Harrisburg International Airport to San Juan is easier if you can be flexible with your travel dates. Use the 'Whole month' function to get the lowest prices across each month and score an epic deal.

  • Stay on top of deals for cheap flights from MDT to San Juan by creating a Price Alert. You'll receive an email or push notification on the app when a new low fare is offered.

  • Select your ideal arrival and departure times, number of stops and airlines with our filters. Then, sort the results for your flight from Harrisburg International Airport to San Juan by 'Fastest,' 'Best' or 'Cheapest.'

Airports in San Juan

Luis Munoz Marin International Airport (SJU)

  • The distance from Luis Munoz Marin International Airport (SJU) to central San Juan is roughly 8 kilometers. It'll take you about 10 minutes to get to the center driving.

  • When traveling by public transport, expect a journey time of about 55 minutes.

  • Consider staying in a hotel near SJU if you're coming in on a late flight from Harrisburg International Airport to San Juan. Settle into one of these options and make your first night all about rest:

  • Grab a Luis Munoz Marin International Airport rental car and discover San Juan and beyond with your own set of wheels. Sixt, Ace Rent a Car and U-Save are popular outlets you can book with here.

  • To lock in the lowest price, reserve your ride from Luis Munoz Marin International Airport about two weeks in advance of your flight from MDT to San Juan.

Fernando Luis Ribas Dominicci Airport (SIG)

  • After your flight from Harrisburg International Airport to San Juan has hit the tarmac, you can make your way to the city center in about 15 minutes by car. Central San Juan is roughly 8 kilometers from Fernando Luis Ribas Dominicci Airport (SIG).

  • If you're traveling on public transport, it'll take about 1 hour.

  • There are some comfortable places to drop your things at near SIG. Kick back and get cozy after your MDT to San Juan flight at one of these perfectly located options:

Best time to go to San Juan

  • Carefully consider your travel dates before booking your flight from Harrisburg International Airport to San Juan. The city buzzes during high season, but rates are generally higher and attractions can get crowded. Plan your trip to San Juan in the off-season for a more relaxed vibe.

  • When booking your Harrisburg International Airport to San Juan flight ticket, think about what kind of weather you prefer. September is the warmest month in San Juan, with temperatures ranging from 23ºC (73ºF) to 33ºC (91ºF).

  • February sees average temperatures of between 20ºC (68ºF) and 28ºC (82ºF). Search for a cheap ticket from MDT to San Juan around that time if you like cooler conditions.

More about San Juan

  • Start your San Juan trip right by choosing the ideal place to stay. After booking your flight from Harrisburg International Airport to San Juan, browse our range of accommodation options including:

  • All great vacations should include some sightseeing. La Garita del morro de san juan bahia, Castillo San Felipe del Morro and Fortaleza Street are attractions you won't want to skip in San Juan.

Explore more of Puerto Rico

  • Aguadilla is just one of the many cities in Puerto Rico waiting to be discovered once you've taken in the sights of San Juan. Around 113 kilometers away to the west, top sights here include El Parterre, Aguadilla Ice Skating Arena and Bandera de los Reyes Magos.

  • Around 105 kilometers west of San Juan, Isabela is another favorite stop in Puerto Rico. No visit is complete without checking out Amarillo Mango, Urb. Llanos Piscina Park and Noches de Artesania.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.