Cheap Flights from Waterloo (ALO) to Sofia (SOF)

Popular airlines from Waterloo, IA (ALO-Waterloo Regional) to Sofia Airport (SOF)

Frequently asked questions

How much does a flight from Waterloo Regional Airport (ALO) to Sofia Airport (SOF) cost?
Secure a cheap one-way flight or cheap return flight from Waterloo Regional Airport (ALO) to Sofia Airport (SOF) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from Waterloo Regional Airport (ALO) to Sofia Airport (SOF)?
Flying in is a good way to save, as it's the cheapest month for flights between ALO and SOF. You'll typically find the lowest fares during the off-season.
What is the cheapest airline that flies from Waterloo Regional Airport (ALO) to Sofia Airport (SOF)?
Expedia's filter tool lets you easily compare airlines, flight times and fares all in one place. Select your preferences, then sort by "Price (lowest to highest)" to see which carrier offers the cheapest ALO to SOF flight.
How many flights per day from Waterloo Regional Airport (ALO) to Sofia Airport (SOF)?
You'll need to hop on a flight with a layover if you're traveling from Waterloo Regional Airport (ALO) to Sofia Airport (SOF). Direct flights don't operate daily on this route. However, just filter your search to include one or two stops to discover the best option for your trip.
What day of the week has the most flights from ALO to SOF?
You'll typically find Tuesday the quietest day for flights, while Fridays tend to be 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 Waterloo Regional Airport (ALO) to Sofia Airport (SOF)?
To avoid potential delays on the Waterloo Regional Airport (ALO) to Sofia Airport (SOF) route, aim to fly before 3 PM. Later flights have a 22% higher chance of being canceled.**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 Waterloo Regional Airport (ALO) to Sofia Airport (SOF) last-minute?
Booking your flight from ALO to SOF right before your journey is typically more expensive. However, if there's some wiggle room with your itinerary, you could score a cheap last-minute fare.
Is it cheaper to book an ALO to SOF flight and hotel package?
Compared with arranging flights and hotels separately, booking an ALO 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 wide range of stays, then tailor your trip with other add-ons like activities and car rentals.
Can I cancel or change the date of my flight from Waterloo Regional Airport (ALO) to Sofia Airport (SOF)?
If you booked your ALO to SOF flight in the last 24 hours, you may be able to cancel or modify it without any fees. Depending on the airline and the fare type you purchased, additional charges may apply for changes beyond that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal for more information.

Travel information

Origin airport
Waterloo Regional
Destination airport
Sofia
Distance
5328 mi

Book with confidence

Waterloo to Sofia Flights

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

 

The best time to book a flight from Waterloo to Sofia

Sunday is one of the best days to book for cheap flights from Waterloo 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 Waterloo 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 Waterloo to Sofia in 2026. You can also book with separate airlines for your outbound and return journeys, from 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 Waterloo 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 Waterloo 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.

 

Waterloo to Sofia Flights

Explore a world of travel with Expedia

*Available to One Key members.