Cheap Flights from Sofia (SOF) to Derby (DCN)

Popular airlines from Sofia Airport (SOF) to Derby, WA (DCN-RAAF Curtin)

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Frequently asked questions

How much does a flight from Sofia Airport (SOF) to Derby, WA (DCN-RAAF Curtin) cost?
Get a cheap one-way flight or cheap return flight from Sofia Airport (SOF) to Derby, WA (DCN-RAAF Curtin) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from Sofia Airport (SOF) to Derby, WA (DCN-RAAF Curtin)?
is the most affordable month to fly from SOF to DCN. Traveling outside of peak seasons is often the key to landing a great deal.
What is the cheapest airline that flies from Sofia Airport (SOF) to Derby, WA (DCN-RAAF Curtin)?
Expedia's filter tool lets you easily compare travel time, airlines and fares all in one place. Customize the search to your preferences, then sort by "Price (lowest to highest)" to find out which carrier offers the cheapest SOF to DCN flight.
How many flights per day from Sofia Airport (SOF) to Derby, WA (DCN-RAAF Curtin)?
Nonstop flights from Sofia Airport (SOF) to Derby, WA (DCN-RAAF Curtin) aren't available daily, so you'll need to take a flight with a layover. Explore your options with Expedia's filters. Enter your dates and select either "1 Stop" or "2+ Stops."
What day of the week has the most flights from SOF to DCN?
Typically you'll find the widest variety of flight choices on a Friday. Tuesdays are often the quietest.* But this can change based on the airline, season and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Sofia Airport (SOF) to Derby, WA (DCN-RAAF Curtin)?
To avoid possible delays on the Sofia Airport (SOF) to Derby, WA (DCN-RAAF Curtin) 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 Sofia Airport (SOF) to Derby, WA (DCN-RAAF Curtin) last-minute?
Booking your ticket from SOF to DCN shortly before your trip is typically more expensive. However, if there's some wiggle room with your itinerary, you could snag a cheap last-minute fare.
Is it cheaper to book a SOF to DCN flight and hotel package?
Compared with arranging hotels and flights separately, booking a SOF to DCN flight and hotel package with Expedia could lead to significant savings. Better still, managing everything in one place will take the hassle out of planning your trip. Simply pick your flights and select from our extensive range of hotels, then tailor your trip with extras like tours, car rentals and activities.
Can I cancel or change the date of my flight from Sofia Airport (SOF) to Derby, WA (DCN-RAAF Curtin)?
In most instances, you can cancel or reschedule your SOF to DCN flight. However, additional charges may apply, especially if you booked over 24 hours ago. Check your itinerary for the airline's fees and policies on flight changes, or if you want further details, head to our Customer Service portal.

Travel information

Travel information

Origin airport
Sofia
Destination airport
RAAF Curtin
Distance
7555 mi

Book with confidence

Book with confidence

Sofia to Derby Flights

The cheapest times to fly from Sofia to Derby

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

 

The best time to book a flight from Sofia to Derby

Sunday is one of the best days to book for cheap flights from Sofia to Derby: 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 Sofia to Derby

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 Sofia to Derby in 2025. 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 Sofia to Derby 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 Sofia to Derby 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.

 

Sofia to Derby Flights

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*Available to One Key members.