$424 Cheap Flights from San Juan (SJU) to Sofia (SOF)

View $424 flight on Sat, Oct 11, 2025Opens in a new window

Popular airlines from Luis Munoz Marin Intl. Airport (SJU) to Sofia Airport (SOF)

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Cheap Flights from San Juan to Sofia (SJU-SOF)

Prices were available within the past 7 days and start at $424 for one-way flights and $536 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Mon, Oct 27 - Tue, Nov 11
SJU
San Juan
SOF
Sofia
$536 Roundtrip, found 5 days ago
$536
Roundtrip
found 5 days ago
Select United flight, departing Mon, Oct 27 from San Juan to Sofia, returning Tue, Nov 11, priced at $536 found 5 days ago
United
Tue, Oct 28 - Fri, Nov 14
SJU
San Juan
SOF
Sofia
$540 Roundtrip, found 5 days ago
$540
Roundtrip
found 5 days ago
Select United flight, departing Tue, Oct 28 from San Juan to Sofia, returning Fri, Nov 14, priced at $540 found 5 days ago
United
Sun, Nov 2 - Tue, Nov 11
SJU
San Juan
SOF
Sofia
$565 Roundtrip, found 5 days ago
$565
Roundtrip
found 5 days ago
Select United flight, departing Sun, Nov 2 from San Juan to Sofia, returning Tue, Nov 11, priced at $565 found 5 days ago
United
Mon, Oct 27 - Wed, Nov 12
SJU
San Juan
SOF
Sofia
$585 Roundtrip, found 5 days ago
$585
Roundtrip
found 5 days ago
Select United flight, departing Mon, Oct 27 from San Juan to Sofia, returning Wed, Nov 12, priced at $585 found 5 days ago
Air Canada
Sun, Oct 26 - Sat, Nov 8
SJU
San Juan
SOF
Sofia
$588 Roundtrip, found 5 days ago
$588
Roundtrip
found 5 days ago
Select Air Canada flight, departing Sun, Oct 26 from San Juan to Sofia, returning Sat, Nov 8, priced at $588 found 5 days ago
United
Wed, Oct 29 - Sun, Nov 16
SJU
San Juan
SOF
Sofia
$590 Roundtrip, found 5 days ago
$590
Roundtrip
found 5 days ago
Select United flight, departing Wed, Oct 29 from San Juan to Sofia, returning Sun, Nov 16, priced at $590 found 5 days ago
United
Sun, Sep 14 - Tue, Sep 23
SJU
San Juan
SOF
Sofia
$591 Roundtrip, found 5 days ago
$591
Roundtrip
found 5 days ago
Select United flight, departing Sun, Sep 14 from San Juan to Sofia, returning Tue, Sep 23, priced at $591 found 5 days ago
British Airways
Mon, Nov 24 - Mon, Dec 29
SJU
San Juan
SOF
Sofia
$686 Roundtrip, found 15 hours ago
$686
Roundtrip
found 15 hours ago
Select British Airways flight, departing Mon, Nov 24 from San Juan to Sofia, returning Mon, Dec 29, priced at $686 found 15 hours ago
Air France
Sat, Oct 18 - Fri, Oct 31
SJU
San Juan
SOF
Sofia
$703 Roundtrip, found 5 days ago
$703
Roundtrip
found 5 days ago
Select Air France flight, departing Sat, Oct 18 from San Juan to Sofia, returning Fri, Oct 31, priced at $703 found 5 days ago
Lufthansa
Wed, Sep 10 - Wed, Sep 17
SJU
San Juan
SOF
Sofia
$817 Roundtrip, found 1 day ago
$817
Roundtrip
found 1 day ago
Select Lufthansa flight, departing Wed, Sep 10 from San Juan to Sofia, returning Wed, Sep 17, priced at $817 found 1 day ago
Flights from San Juan (SJU) to Sofia (SOF)
Origin airport
Luis Munoz Marin Intl.
Destination airport
Sofia
Airlines serving
Air France, American Airlines, British Airways, KLM, Lufthansa, United
Roundtrip price
$535
Distance
5333 mi

San Juan to Sofia Flights

The cheapest times to fly from San Juan to Sofia

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from San Juan to Sofia are during the month of October. You can find some of the cheapest flights from San Juan to Sofia with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from San Juan to Sofia

Sunday is one of the best days to book for cheap flights from San Juan to Sofia: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from San Juan to Sofia

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from San Juan to Sofia in 2025. You can also book with separate airlines for your outbound and return journeys, from $424 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap San Juan to Sofia flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your San Juan to Sofia airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Luis Munoz Marin Intl. Airport (SJU) to Sofia Airport (SOF) cost?
Discover the latest flight deals from SJU to SOF by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from SJU to SOF?
The cheapest flights from SJU to SOF are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
What is the cheapest airline that flies from SJU to SOF?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll take you from SJU to SOF. Sort your results by "Price (lowest to highest)" to snap up a great deal.
How many flights per day from Luis Munoz Marin Intl. Airport (SJU) to Sofia Airport (SOF)?
Nonstop flights from Luis Munoz Marin Intl. Airport (SJU) to Sofia Airport (SOF) aren't available daily, so you'll have to take a flight with a layover. Explore your options with our filter tool. Enter your travel details and pick either "1 Stop" or "2+ Stops."
What day of the week has the most flights from SJU to SOF?
You'll generally find Tuesday the quietest day for flights, while Fridays are often the busiest.* However this can change from season to season and during peak travel times or public holidays.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Luis Munoz Marin Intl. Airport (SJU) to Sofia Airport (SOF)?
To land at Sofia Airport (SOF) on schedule, choose a flight that leaves Luis Munoz Marin Intl. Airport (SJU) before 3 PM. The chance of cancellations is 22% higher, on average, for departures after this time.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Luis Munoz Marin Intl. Airport (SJU) to Sofia Airport (SOF) last-minute?
Last-minute bookings from SJU to SOF are usually more expensive. To lock in the lowest prices, start looking for flights well ahead of time. That being said, if you're flexible with your travel dates, you may score a cheap fare just before your departure.
Is it cheaper to book a SJU to SOF flight and hotel package?
Compared with arranging hotels and flights separately, booking a SJU to SOF flight and hotel package with Expedia could lead to significant savings. What's more, having it all in one place will take the hassle out of travel planning. Simply pick your flights and choose from our extensive range of hotels, then customize your trip with extras like activities, tours and car rentals.
Can I cancel or change the date of my flight from Luis Munoz Marin Intl. Airport (SJU) to Sofia Airport (SOF)?
If you booked your SJU to SOF flight in the last 24 hours, you may be able to cancel or modify it at no cost. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, visit our Customer Service portal if you'd like more information.

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*Available to One Key members.