$935 Cheap Flights from Sofia (SOF) to Kailua-Kona (KOA)

View $935 flight on Thu, Sep 18, 2025Opens in a new window

Popular airlines from Sofia Airport (SOF) to Kona Intl. Airport (KOA)

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Cheap Flights from Sofia to Kailua-Kona (SOF-KOA)

Prices were available within the past 7 days and start at $935 for one-way flights and $1,266 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Lufthansa
Sat, Sep 13 - Sat, Sep 27
SOF
Sofia
KOA
Kona Coast
$1,266 Roundtrip, found 6 hours ago
$1,266
Roundtrip
found 6 hours ago
Select Lufthansa flight, departing Sat, Sep 13 from Sofia to Kona Coast, returning Sat, Sep 27, priced at $1,266 found 6 hours ago
United
Wed, Sep 17 - Sat, Sep 27
SOF
Sofia
KOA
Kona Coast
$1,268 Roundtrip, found 5 days ago
$1,268
Roundtrip
found 5 days ago
Select United flight, departing Wed, Sep 17 from Sofia to Kona Coast, returning Sat, Sep 27, priced at $1,268 found 5 days ago
United
Wed, Sep 17 - Thu, Oct 2
SOF
Sofia
KOA
Kona Coast
$1,270 Roundtrip, found 5 days ago
$1,270
Roundtrip
found 5 days ago
Select United flight, departing Wed, Sep 17 from Sofia to Kona Coast, returning Thu, Oct 2, priced at $1,270 found 5 days ago
United
Fri, Aug 29 - Sun, Sep 14
SOF
Sofia
KOA
Kona Coast
$1,281 Roundtrip, found 5 days ago
$1,281
Roundtrip
found 5 days ago
Select United flight, departing Fri, Aug 29 from Sofia to Kona Coast, returning Sun, Sep 14, priced at $1,281 found 5 days ago
United
Fri, Aug 29 - Tue, Sep 16
SOF
Sofia
KOA
Kona Coast
$1,283 Roundtrip, found 5 days ago
$1,283
Roundtrip
found 5 days ago
Select United flight, departing Fri, Aug 29 from Sofia to Kona Coast, returning Tue, Sep 16, priced at $1,283 found 5 days ago
United
Thu, Sep 18 - Thu, Oct 2
SOF
Sofia
KOA
Kona Coast
$1,284 Roundtrip, found 6 hours ago
$1,284
Roundtrip
found 6 hours ago
Select United flight, departing Thu, Sep 18 from Sofia to Kona Coast, returning Thu, Oct 2, priced at $1,284 found 6 hours ago
United
Thu, Sep 18 - Thu, Oct 2
SOF
Sofia
KOA
Kona Coast
$1,286 Roundtrip, found 6 hours ago
$1,286
Roundtrip
found 6 hours ago
Select United flight, departing Thu, Sep 18 from Sofia to Kona Coast, returning Thu, Oct 2, priced at $1,286 found 6 hours ago
Air France
Sat, Aug 9 - Mon, Aug 25
SOF
Sofia
KOA
Kona Coast
$1,674 Roundtrip, found 5 days ago
$1,674
Roundtrip
found 5 days ago
Select Air France flight, departing Sat, Aug 9 from Sofia to Kona Coast, returning Mon, Aug 25, priced at $1,674 found 5 days ago
KLM
Sat, Sep 13 - Sat, Sep 27
SOF
Sofia
KOA
Kona Coast
$1,691 Roundtrip, found 6 hours ago
$1,691
Roundtrip
found 6 hours ago
Select KLM flight, departing Sat, Sep 13 from Sofia to Kona Coast, returning Sat, Sep 27, priced at $1,691 found 6 hours ago
British Airways
Sun, Aug 24 - Sun, Sep 7
SOF
Sofia
KOA
Kona Coast
$1,887 Roundtrip, found 6 hours ago
$1,887
Roundtrip
found 6 hours ago
Select British Airways flight, departing Sun, Aug 24 from Sofia to Kona Coast, returning Sun, Sep 7, priced at $1,887 found 6 hours ago

Alternative airports near Kailua-Kona

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Kona Intl. KOA. Cheapest option available. Flights from $1,370
KOA
Kona Intl.
Cheapest
Flights from $1,370
Flights from Sofia (SOF) to Kailua-Kona (KOA)
Origin airport
Sofia
Destination airport
Kona Intl.
Airlines serving
Air France, British Airways, KLM, Lufthansa, United
Roundtrip price
$1,266
Distance
8123 mi

Sofia to Kailua-Kona Flights

The cheapest times to fly from Sofia to Kailua-Kona

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

 

The best time to book a flight from Sofia to Kailua-Kona

Sunday is one of the best days to book for cheap flights from Sofia to Kailua-Kona: 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 Kailua-Kona

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 Kailua-Kona in 2025. You can also book with separate airlines for your outbound and return journeys, from $935 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 Kailua-Kona 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 Kailua-Kona 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 Sofia Airport (SOF) to Kona Intl. Airport (KOA) cost?
Discover the latest flight deals from SOF to KOA 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 SOF to KOA?
The cheapest flights from SOF to KOA 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 SOF to KOA?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll take you from SOF to KOA. Sort your results by "Price (lowest to highest)" to snap up a great deal.
How many flights per day from Sofia Airport (SOF) to Kona Intl. Airport (KOA)?
There are no daily direct flights departing from Sofia Airport (SOF) to Kona Intl. Airport (KOA). But you can book flights with layovers. Filter your search on Expedia to include one or more stops, and you'll be cruising above the clouds in no time.
What day of the week has the most flights from SOF to KOA?
You'll generally find Tuesday the quietest day for flights, while Fridays tend to be the busiest.* However this can change from season to season and during public holidays or peak travel times.*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 Kona Intl. Airport (KOA)?
Book a flight from Sofia Airport (SOF) to Kona Intl. Airport (KOA) that takes off before 3 PM to reduce the risk of cancellations. Later departures have a 22% higher chance of being canceled, on average.**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 Kona Intl. Airport (KOA) last-minute?
Last-minute bookings from SOF to KOA are typically more expensive. For the lowest prices, start looking for flights well ahead of time. That being said, if you're flexible with your travel dates, it's possible to score a cheap ticket just before your departure.
Is it cheaper to book a SOF to KOA flight and hotel package?
Compared with arranging hotels and flights separately, booking a SOF to KOA flight and hotel package with Expedia could result in significant savings. Better yet, having everything in one easy place will take the stress out of planning your trip. Simply pick your flights and select from our wide range of stays, then customize your trip with extras like activities and car rentals.
Can I cancel or change the date of my flight from Sofia Airport (SOF) to Kona Intl. Airport (KOA)?
Typically, you're able to cancel or reschedule your SOF to KOA flight. However, additional fees may apply, especially if you booked over 24 hours ago. Check your itinerary for the airline's rules and fees on flight changes, or if you'd like further information, visit our Customer Service portal.

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*Available to One Key members.