$103 Cheap Flights from Lisbon (LIS) to Sofia (SOF)

View $103 flight on Thu, Mar 19, 2026Opens in a new window

Popular airlines from Humberto Delgado Airport (LIS) to Sofia Airport (SOF)

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Cheap Flights from Lisbon to Sofia (LIS-SOF)

Prices were available within the past 7 days and start at $103 for one-way flights and $199 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Aegean
Thu, Mar 19 - Wed, Mar 25
LIS
Lisbon
SOF
Sofia
$199 Roundtrip, found 6 days ago
$199
Roundtrip
found 6 days ago
Select Aegean flight, departing Thu, Mar 19 from Lisbon to Sofia, returning Wed, Mar 25, priced at $199 found 6 days ago
Aegean
Thu, Mar 19 - Wed, Mar 25
LIS
Lisbon
SOF
Sofia
$230 Roundtrip, found 6 days ago
$230
Roundtrip
found 6 days ago
Select Aegean flight, departing Thu, Mar 19 from Lisbon to Sofia, returning Wed, Mar 25, priced at $230 found 6 days ago
Aegean
Thu, Mar 19 - Wed, Mar 25
LIS
Lisbon
SOF
Sofia
$246 Roundtrip, found 6 days ago
$246
Roundtrip
found 6 days ago
Select Aegean flight, departing Thu, Mar 19 from Lisbon to Sofia, returning Wed, Mar 25, priced at $246 found 6 days ago
Lufthansa
Wed, Mar 11 - Wed, Mar 18
LIS
Lisbon
SOF
Sofia
$255 Roundtrip, found 22 hours ago
$255
Roundtrip
found 22 hours ago
Select Lufthansa flight, departing Wed, Mar 11 from Lisbon to Sofia, returning Wed, Mar 18, priced at $255 found 22 hours ago
Austrian Airlines
Fri, Mar 6 - Wed, Mar 11
LIS
Lisbon
SOF
Sofia
$256 Roundtrip, found 15 hours ago
$256
Roundtrip
found 15 hours ago
Select Austrian Airlines flight, departing Fri, Mar 6 from Lisbon to Sofia, returning Wed, Mar 11, priced at $256 found 15 hours ago
LOT-Polish Airlines
Fri, Mar 6 - Wed, Mar 11
LIS
Lisbon
SOF
Sofia
$262 Roundtrip, found 15 hours ago
$262
Roundtrip
found 15 hours ago
Select LOT-Polish Airlines flight, departing Fri, Mar 6 from Lisbon to Sofia, returning Wed, Mar 11, priced at $262 found 15 hours ago
Austrian Airlines
Fri, Mar 6 - Wed, Mar 11
LIS
Lisbon
SOF
Sofia
$264 Roundtrip, found 15 hours ago
$264
Roundtrip
found 15 hours ago
Select Austrian Airlines flight, departing Fri, Mar 6 from Lisbon to Sofia, returning Wed, Mar 11, priced at $264 found 15 hours ago
Lufthansa
Wed, Mar 11 - Wed, Mar 18
LIS
Lisbon
SOF
Sofia
$265 Roundtrip, found 22 hours ago
$265
Roundtrip
found 22 hours ago
Select Lufthansa flight, departing Wed, Mar 11 from Lisbon to Sofia, returning Wed, Mar 18, priced at $265 found 22 hours ago
Aegean
Thu, Mar 19 - Wed, Mar 25
LIS
Lisbon
SOF
Sofia
$270 Roundtrip, found 6 days ago
$270
Roundtrip
found 6 days ago
Select Aegean flight, departing Thu, Mar 19 from Lisbon to Sofia, returning Wed, Mar 25, priced at $270 found 6 days ago
Air Serbia
Fri, Aug 7 - Fri, Aug 14
LIS
Lisbon
SOF
Sofia
$275 Roundtrip, found 4 hours ago
$275
Roundtrip
found 4 hours ago
Select Air Serbia flight, departing Fri, Aug 7 from Lisbon to Sofia, returning Fri, Aug 14, priced at $275 found 4 hours ago

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Flights from Lisbon (LIS) to Sofia (SOF)
Origin airport
Humberto Delgado
Destination airport
Sofia
Airlines serving
Aegean, Air France, Austrian Airlines, British Airways, Iberia, KLM, LOT-Polish Airlines, Lufthansa, SKY express, Scandinavian Airlines, Swiss International Air Lines, TAP Portugal, Turkish Airlines
Roundtrip price
$198
Distance
1713 mi

Lisbon to Sofia Flights

The cheapest times to fly from Lisbon 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 Lisbon to Sofia are during the month of March. You can find some of the cheapest flights from Lisbon to Sofia with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Lisbon to Sofia

Sunday is one of the best days to book for cheap flights from Lisbon 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 Lisbon 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 Lisbon to Sofia in 2026. You can also book with separate airlines for your outbound and return journeys, from $103 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 Lisbon 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 Lisbon 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 Lisbon (LIS-Humberto Delgado) to Sofia (SOF) cost?
You can find cheap one-way flights from $103 and cheap return flights from $199 Lisbon (LIS-Humberto Delgado) to Sofia (SOF) with Expedia. One-way flights generally range between $384 and $1749, and roundtrip flights usually range from $386 to $1335. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when Lisbon (LIS-Humberto Delgado) to Sofia (SOF) ticket fares go up or down.*Typical price ranges based on flights available on Expedia in the last year. Prices include multi-airline options.
What is the cheapest month to fly from Lisbon (LIS-Humberto Delgado) to Sofia (SOF)?
The cheapest month to fly from LIS to SOF is March when demand is low. Traveling in off-peak or shoulder months is usually a good way to secure cheap tickets, just remember to avoid flying during holidays if you're able to. Use the calendar view in your search to see which months have low fares on this route.
Which airlines fly direct from Lisbon (LIS-Humberto Delgado) to Sofia (SOF)?
You can fly direct from LIS to SOF on Bulgaria Air, with around 7 flights per week.
What is the cheapest airline that flies from Lisbon (LIS-Humberto Delgado) to Sofia (SOF)?
Aegean is one of the cheapest airlines offering connecting flights from Lisbon (LIS-Humberto Delgado) to Sofia (SOF), with round-trip tickets starting from around $299. Use Expedia's search tool to compare the prices and schedules of airlines that fly this route to find the best option for your plans and budget.*Prices based on flights available on Expedia in the last year.
How do I find cheap flights from Lisbon (LIS-Humberto Delgado) to Sofia (SOF)?
To find a cheap flight from Lisbon (LIS-Humberto Delgado) to Sofia (SOF), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best time to fly from Lisbon (LIS-Humberto Delgado) to Sofia (SOF)?
The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience.
How many flights per day from Lisbon (LIS-Humberto Delgado) to Sofia (SOF)?
You can find approximately 1 nonstop flights per day from Humberto Delgado (LIS) to (SOF). For more options, look at flights that include layovers.
What is the earliest flight from Lisbon (LIS-Humberto Delgado) to Sofia (SOF)?
Sort flights by "Departure (earliest)" on Expedia to find the earliest flight from LIS to SOF. To compare more early flights, use the "Early Morning" and "Morning" filters in your search.
What are the most popular departure times for flights from Lisbon (LIS-Humberto Delgado) to Sofia (SOF)?
The most popular departure times for flights from Lisbon (LIS-Humberto Delgado) to Sofia (SOF) are in the early morning, from 6am to 9am. About 36% of passengers prefer this time window. Many major carriers, including TAP Air Portugal and Lufthansa, offer flights during this window. This timing is popular because it allows travelers to maximize their time in Sofia upon arrival.
How long does it take to fly from Lisbon (LIS-Humberto Delgado) to Sofia (SOF)?
Direct flights from LIS to SOF usually take about 4 hours, traveling roughly 1,714 miles. If you opt for a connecting flight, expect to add around 3 hours to your journey. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from Lisbon (LIS-Humberto Delgado) to Sofia (SOF)?
Business class is available on flights from LIS to SOF. Airlines that offer business class service on this route include:

  • Lufthansa
  • Turkish Airlines
  • TAP Portugal
  • Iberia
  • KLM
  • Swiss International Air Lines
  • British Airways
  • Aegean
  • LOT Polish Airlines
  • Air France

How do I earn miles on a Lisbon (LIS-Humberto Delgado) to Sofia (SOF) flight with Expedia?
It's easy to earn miles on a Lisbon (LIS-Humberto Delgado) to Sofia (SOF) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
Is it cheaper to buy a plane ticket from Lisbon (LIS-Humberto Delgado) to Sofia (SOF) at the last minute?
Typically, booking a last minute flight from Lisbon (LIS-Humberto Delgado) to Sofia (SOF) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Lisbon (LIS-Humberto Delgado) to Sofia (SOF) flight and hotel package?
Securing a Lisbon (LIS-Humberto Delgado) to Sofia (SOF) Sofia Vacation Packages is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Lisbon (LIS-Humberto Delgado) to Sofia (SOF)?
If you booked your Lisbon (LIS-Humberto Delgado) to Sofia (SOF) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

*Flight schedules are subject to change.

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