$229 Cheap Flights from Phoenix (PHX) to Sofia (SOF)

View $229 flight on Tue, Nov 3, 2026Opens in a new window

Popular airlines from Phoenix to Sofia (SOF)

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Cheap Flights from Phoenix to Sofia (PHX-SOF)

Prices were available within the past 7 days and start at $229 for one-way flights and $564 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

British Airways
Mon, May 4 - Mon, Jun 1
PHX
Phoenix
SOF
Sofia
$564 Roundtrip, found 2 hours ago
$564
Roundtrip
found 2 hours ago
Select British Airways flight, departing Mon, May 4 from Phoenix to Sofia, returning Mon, Jun 1, priced at $564 found 2 hours ago
British Airways
Mon, May 4 - Mon, Jun 1
PHX
Phoenix
SOF
Sofia
$565 Roundtrip, found 2 hours ago
$565
Roundtrip
found 2 hours ago
Select British Airways flight, departing Mon, May 4 from Phoenix to Sofia, returning Mon, Jun 1, priced at $565 found 2 hours ago
British Airways
Mon, May 11 - Mon, Jun 8
PHX
Phoenix
SOF
Sofia
$569 Roundtrip, found 5 days ago
$569
Roundtrip
found 5 days ago
Select British Airways flight, departing Mon, May 11 from Phoenix to Sofia, returning Mon, Jun 8, priced at $569 found 5 days ago
British Airways
Wed, May 13 - Wed, Jun 10
PHX
Phoenix
SOF
Sofia
$577 Roundtrip, found 5 days ago
$577
Roundtrip
found 5 days ago
Select British Airways flight, departing Wed, May 13 from Phoenix to Sofia, returning Wed, Jun 10, priced at $577 found 5 days ago
British Airways
Tue, May 12 - Wed, Jun 10
PHX
Phoenix
SOF
Sofia
$582 Roundtrip, found 5 days ago
$582
Roundtrip
found 5 days ago
Select British Airways flight, departing Tue, May 12 from Phoenix to Sofia, returning Wed, Jun 10, priced at $582 found 5 days ago
United
Tue, Jan 27 - Wed, Feb 11
PHX
Phoenix
SOF
Sofia
$591 Roundtrip, found 6 days ago
$591
Roundtrip
found 6 days ago
Select United flight, departing Tue, Jan 27 from Phoenix to Sofia, returning Wed, Feb 11, priced at $591 found 6 days ago
Lufthansa
Mon, Feb 23 - Tue, Mar 3
PHX
Phoenix
SOF
Sofia
$592 Roundtrip, found 14 hours ago
$592
Roundtrip
found 14 hours ago
Select Lufthansa flight, departing Mon, Feb 23 from Phoenix to Sofia, returning Tue, Mar 3, priced at $592 found 14 hours ago
United
Tue, Feb 10 - Thu, Feb 19
PHX
Phoenix
SOF
Sofia
$592 Roundtrip, found 15 hours ago
$592
Roundtrip
found 15 hours ago
Select United flight, departing Tue, Feb 10 from Phoenix to Sofia, returning Thu, Feb 19, priced at $592 found 15 hours ago
Swiss International Air Lines
Tue, Feb 10 - Thu, Feb 19
PHX
Phoenix
SOF
Sofia
$595 Roundtrip, found 15 hours ago
$595
Roundtrip
found 15 hours ago
Select Swiss International Air Lines flight, departing Tue, Feb 10 from Phoenix to Sofia, returning Thu, Feb 19, priced at $595 found 15 hours ago
Air Canada
Wed, Mar 18 - Tue, Mar 31
PHX
Phoenix
SOF
Sofia
$597 Roundtrip, found 1 day ago
$597
Roundtrip
found 1 day ago
Select Air Canada flight, departing Wed, Mar 18 from Phoenix to Sofia, returning Tue, Mar 31, priced at $597 found 1 day ago

Find the cheapest month to fly from Phoenix (PHX) to Sofia (SOF)

November is typically the cheapest month to fly

From $531 - $1,356 per traveler.

Alternative airports near Sofia

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

Select flight to Sofia Airport SOF. Cheapest and Closest option available. Average driving time to city center is 11 minutes. Flights from $696
SOF
Sofia Airport
CheapestClosest
Average driving time to city center11 min
Flights from $696

Frequently asked questions

How much does a flight from Sky Harbor Intl. Airport (PHX) to Sofia Airport (SOF) cost?
Snag a cheap one-way flight from $229 or cheap return flight from $564 from Sky Harbor Intl. Airport (PHX) to Sofia Airport (SOF) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from Sky Harbor Intl. Airport (PHX) to Sofia Airport (SOF)?
May is the least expensive month to fly from PHX to SOF. Timing your trip outside of the busy season is often the key to finding better deals on flights.
What is the cheapest airline that flies from Sky Harbor Intl. Airport (PHX) to Sofia Airport (SOF)?
Expedia's filter tool lets you easily compare travel time, airlines and fares all in one place. Tailor the search to your trip, then sort by "Price (lowest to highest)" to find out which carrier offers the cheapest PHX to SOF flight.
How many flights per day from Sky Harbor Intl. Airport (PHX) to Sofia Airport (SOF)?
Nonstop flights from Sky Harbor Intl. Airport (PHX) to Sofia Airport (SOF) aren't available daily, so you'll have to take a flight with a layover. Explore your options with Expedia's filter tool. Enter your travel dates and click on either "1 Stop" or "2+ Stops."
What day of the week has the most flights from PHX to SOF?
Friday is typically the busiest day for flights, while Tuesday tends to be the quietest.* Just remember that flight schedules can change depending on a number of factors, including the time of year and carrier.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Sky Harbor Intl. Airport (PHX) to Sofia Airport (SOF)?
Select a flight from Sky Harbor Intl. Airport (PHX) to Sofia Airport (SOF) that leaves before 3 PM to reduce the risk of delays and cancellations. Departures after this hour 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 Sky Harbor Intl. Airport (PHX) to Sofia Airport (SOF) last-minute?
Waiting until just before your departure to book your flight from PHX to SOF generally means paying more. While you may find some last-minute offers, they're not always guaranteed. Be flexible with your itinerary for the best chance of snagging a bargain.
Is it cheaper to book a PHX to SOF flight and hotel package?
Compared with arranging flights and hotels separately, booking a PHX to SOF flight and hotel package with Expedia could lead to significant savings. Better still, having everything in one convenient place takes the hassle out of travel planning. Simply pick your flights and select from our wide range of hotels, then tailor your trip with extras like activities and car rentals.
Can I cancel or change the date of my flight from Sky Harbor Intl. Airport (PHX) to Sofia Airport (SOF)?
It's generally possible to reschedule or cancel your PHX to SOF flight. However, if the booking was made more than 24 hours ago, additional charges may apply. Refer to your airline's policies in your itinerary to see what changes are possible and whether any costs are involved. You'll also find more details on our Customer Service portal.

Travel information

Origin airport
Sky Harbor Intl.
Destination airport
Sofia
Airlines serving
Air Canada, Air Serbia, Austrian Airlines, British Airways, ITA Airways, JetBlue Airways, KLM, Lufthansa, Swiss International Air Lines, Turkish Airlines, United
Roundtrip price
$564
Distance
6468 mi

Book with confidence

Phoenix to Sofia Flights

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

 

The best time to book a flight from Phoenix to Sofia

Sunday is one of the best days to book for cheap flights from Phoenix 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 Phoenix 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 Phoenix to Sofia in 2026. You can also book with separate airlines for your outbound and return journeys, from $229 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 Phoenix 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 Phoenix 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.

 

Phoenix to Sofia Flights

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*Available to One Key members.