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$629 Cheap Flights from Sofia (SOF) to Phoenix (PHX)

View $629 flight on Wed, Dec 2, 2026Opens in a new window

Popular airlines from Sofia Airport (SOF) to Phoenix Sky Harbor Intl. Airport (PHX)

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Cheap Flights from Sofia to Phoenix (SOF-PHX)

Prices were available within the past 7 days and start at $629 for one-way flights and $963 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Lufthansa
Tue, Oct 20 - Fri, Nov 20
SOF
Sofia
PHX
Phoenix
$963 Roundtrip, found 1 day ago
$963
Roundtrip
found 1 day ago
Select Lufthansa flight, departing Tue, Oct 20 from Sofia to Phoenix, returning Fri, Nov 20, priced at $963 found 1 day ago
Lufthansa
Tue, Oct 20 - Fri, Nov 20
SOF
Sofia
PHX
Phoenix
$964 Roundtrip, found 1 day ago
$964
Roundtrip
found 1 day ago
Select Lufthansa flight, departing Tue, Oct 20 from Sofia to Phoenix, returning Fri, Nov 20, priced at $964 found 1 day ago
Austrian Airlines
Tue, Sep 1 - Wed, Sep 16
SOF
Sofia
PHX
Phoenix
$971 Roundtrip, found 3 hours ago
$971
Roundtrip
found 3 hours ago
Select Austrian Airlines flight, departing Tue, Sep 1 from Sofia to Phoenix, returning Wed, Sep 16, priced at $971 found 3 hours ago
Austrian Airlines
Tue, Sep 1 - Wed, Sep 16
SOF
Sofia
PHX
Phoenix
$972 Roundtrip, found 3 hours ago
$972
Roundtrip
found 3 hours ago
Select Austrian Airlines flight, departing Tue, Sep 1 from Sofia to Phoenix, returning Wed, Sep 16, priced at $972 found 3 hours ago
Austrian Airlines
Tue, Oct 20 - Fri, Nov 20
SOF
Sofia
PHX
Phoenix
$973 Roundtrip, found 1 day ago
$973
Roundtrip
found 1 day ago
Select Austrian Airlines flight, departing Tue, Oct 20 from Sofia to Phoenix, returning Fri, Nov 20, priced at $973 found 1 day ago
Austrian Airlines
Tue, Oct 20 - Fri, Nov 20
SOF
Sofia
PHX
Phoenix
$974 Roundtrip, found 1 day ago
$974
Roundtrip
found 1 day ago
Select Austrian Airlines flight, departing Tue, Oct 20 from Sofia to Phoenix, returning Fri, Nov 20, priced at $974 found 1 day ago
Austrian Airlines
Tue, Sep 1 - Wed, Sep 16
SOF
Sofia
PHX
Phoenix
$975 Roundtrip, found 3 hours ago
$975
Roundtrip
found 3 hours ago
Select Austrian Airlines flight, departing Tue, Sep 1 from Sofia to Phoenix, returning Wed, Sep 16, priced at $975 found 3 hours ago
British Airways
Wed, Dec 16 - Wed, Jan 6
SOF
Sofia
PHX
Phoenix
$985 Roundtrip, found 15 hours ago
$985
Roundtrip
found 15 hours ago
Select British Airways flight, departing Wed, Dec 16 from Sofia to Phoenix, returning Wed, Jan 6, priced at $985 found 15 hours ago
United
Wed, Dec 2 - Wed, Jan 6
SOF
Sofia
PHX
Phoenix
$988 Roundtrip, found 3 days ago
$988
Roundtrip
found 3 days ago
Select United flight, departing Wed, Dec 2 from Sofia to Phoenix, returning Wed, Jan 6, priced at $988 found 3 days ago
Air Canada
Tue, Oct 20 - Fri, Nov 20
SOF
Sofia
PHX
Phoenix
$1,022 Roundtrip, found 1 day ago
$1,022
Roundtrip
found 1 day ago
Select Air Canada flight, departing Tue, Oct 20 from Sofia to Phoenix, returning Fri, Nov 20, priced at $1,022 found 1 day ago

What you need to know for your flight from Sofia to Sky Harbor Intl.

Sofia (SOF) to Phoenix (PHX) at a glance

Travel with a range of airlines that operate international flights from Sofia (SOF) to Phoenix (PHX) on this long-haul route. Evaluate options from full-service carriers to discover the itinerary that aligns with your budget, schedule, and travel plans while you dive into the iconic attractions and neighborhoods of Phoenix. Access essential information for flights departing from Sofia Airport (SOF) to Sky Harbor International Airport (PHX).

  • Fastest flight duration: around 14h 30m in-flight, plus roughly 4 hours layover with one stop
  • Route distance: roughly 6,500 miles (10,460 km)
  • Flights per week: around 7 departures on average
  • Typical fares (one-way): economy tickets often range from $450–$1020, depending on seasonality and how far ahead you book

Flights from Sofia Airport (SOF) to Sky Harbor International Airport (PHX)

According to recent traveler bookings, here are the top airlines favored for flights from Sofia to Phoenix, covering both one-stop and multi-stop options. Popular layover destinations include Frankfurt International Airport (FRA) with an approximate 2h 45m connection, Denver International Airport (DEN) at around 2h 30m, and Franz Josef Strauss International Airport (MUC) with about a 2h 15m stopover. This variety allows you to customize your itinerary based on price, total travel time, and cabin class for an optimal travel experience.

  • Lufthansa: This premium airline provides a full-service experience with multi-stop options. One-way ticket prices generally fall between $450 and $4645, making up about 27% of all departures on this route. Expect an in-flight duration of 15 hours and 45 minutes, with total travel time around 21 hours and 30 minutes, including layovers.
  • United: Another full-service airline, United offers multi-stop itineraries with one-way fares typically ranging from $515 to $980. It represents around 23% of departures on this route. Passengers can anticipate a flight time of 15 hours and 45 minutes, with the overall journey duration being approximately 21 hours and 30 minutes, including layovers.
  • British Airways: Providing one-stop service, British Airways is a full-service carrier with one-way fares generally between $480 and $600. It accounts for roughly 13% of departures on this route. Flight times average 14 hours and 30 minutes, leading to a total journey time of around 18 hours and 30 minutes, factoring in layovers.

How to find the best prices for flights from Sofia (SOF) to Phoenix (PHX)

Getting some of the best deals on flights from Sofia to Phoenix is all about timing and flexibility. Here are some key tips to help you save:

  1. Best times to book and fly: cheaper fares are often available when booking within two weeks, although most travelers tend to book two to eight weeks in advance. Morning departures (5 a.m. to 12 p.m.) generally offer lower prices and are popular among travelers, while flying on Sunday typically provides cheaper options, even though Monday remains the most popular travel day.
  2. Set up price alerts: stay updated on price changes by using Expedia's Price Tracker. Receive alerts when fares drop for your selected route.
  3. Bundle and save: bundle your flight and hotel to save on Expedia, or unlock a hotel deal after booking your flight.*
  4. Compare flight options: use Expedia's search tool to compare airlines, routes, direct vs. non-direct flights, and flight times. You can also sort by price to find the most affordable options.
  5. Stay flexible with dates: being open to different travel days can sometimes help you find better prices on flights and hotels.
  6. Think about luggage: nowadays, it's important to check the airline's baggage policies to find the best value. That may be paying for an additional carry-on bag or booking a ticket with checked luggage included. Either way, double-check your allowance before confirming your booking to avoid excess baggage fees at the airport.

*Members only. Savings vary and are not available on all bundles. Select hotels.

Arriving at Sky Harbor International Airport from Sofia Airport

Phoenix welcomes travelers from Sofia with a range of transport options based on price, convenience, and proximity. Here's how to reach Phoenix efficiently:

  • Hotel transfer: Transfers offer a convenient way to reach your hotel in Phoenix, with private rides that can be arranged in advance.
  • Car rental: Renting a car from Sky Harbor International Airport is a great option if you plan to explore and sightsee beyond the city. Browse cheap car rentals at Sky Harbor International Airport on Expedia.
  • Taxi/ride-hailing: Taxis and ride-hailing services may be available from designated pickup areas outside the terminal, check locally on arrival.
  • Public transportation: From Sky Harbor International Airport, the nearest transport links are easily accessible on foot; Terminal 3 Station, a metro station, is located about 0.1 miles away, while Phoenix Airport Bus Stop, a bus station, is about 0.2 miles from the airport.

Frequently asked questions

How much does a flight from Sofia (SOF) to Phoenix, AZ (PHX-Sky Harbor Intl.) cost?
You can find cheap one-way flights from $629 and cheap return flights from $963 Sofia (SOF) to Phoenix, AZ (PHX-Sky Harbor Intl.) with Expedia. One-way flights usually range from $841 to $3075, and return flights typically cost between $851 and $3411. 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 Sofia (SOF) to Phoenix, AZ (PHX-Sky Harbor Intl.) 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 Sofia (SOF) to Phoenix, AZ (PHX-Sky Harbor Intl.)?
The cheapest month to fly from SOF to PHX is October 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 Sofia (SOF) to Phoenix, AZ (PHX-Sky Harbor Intl.)?
Enter SOF to PHX and your travel dates, then apply the 'Nonstop' filter to see only direct flights.
What is the cheapest airline that flies from Sofia (SOF) to Phoenix, AZ (PHX-Sky Harbor Intl.)?
Air Serbia is one of the cheapest airlines offering connecting flights from Sofia (SOF) to Sky Harbor Intl. (PHX), with round-trip tickets starting from around $1,041 with a layover in Nikola Tesla (BEG). 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 Sofia (SOF) to Phoenix, AZ (PHX-Sky Harbor Intl.)?
To find a cheap flight from Sofia (SOF) to Phoenix, AZ (PHX-Sky Harbor Intl.), 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 Sofia (SOF) to Phoenix, AZ (PHX-Sky Harbor Intl.)?
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.
What is the earliest flight from Sofia (SOF) to Phoenix, AZ (PHX-Sky Harbor Intl.)?
The earliest flight from Sofia (SOF) to Phoenix Sky Harbor International Airport (PHX) usually departs at around 5:00 AM, operated by Air Serbia and American Airlines. This seasonal service is active in July, giving you a head start on your travel day. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
How long does it take to fly from Sofia (SOF) to Phoenix, AZ (PHX-Sky Harbor Intl.)?
Flying from SOF to PHX with a connection usually takes about 16 hours 50 minutes, traveling roughly 6,469 miles. 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 Sofia (SOF) to Phoenix, AZ (PHX-Sky Harbor Intl.)?
Business class is available on flights from SOF to PHX. Airlines that offer business class service on this route include:

  • Lufthansa
  • Bulgaria Air
  • Qatar Airways
  • Turkish Airlines
  • British Airways
  • Air Baltic
  • Austrian Airlines
  • Swiss International Air Lines
  • Helvetic Airways

How do I earn miles on a Sofia (SOF) to Phoenix, AZ (PHX-Sky Harbor Intl.) flight with Expedia?
It's easy to earn miles on a Sofia (SOF) to Phoenix, AZ (PHX-Sky Harbor Intl.) 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.
What airports do you fly into for Phoenix from SOF (SOF)?
From SOF (SOF), you can fly into Sky Harbor Intl. (PHX) to reach Phoenix. Some flights may connect through major hubs like Frankfurt Intl. (FRA), Franz Josef Strauss Intl. (MUC), Vienna Intl. (VIE) before reaching Phoenix. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Sofia (SOF) to Phoenix, AZ (PHX-Sky Harbor Intl.) at the last minute?
Typically, booking a last minute flight from Sofia (SOF) to Phoenix, AZ (PHX-Sky Harbor Intl.) 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 Sofia (SOF) to Phoenix, AZ (PHX-Sky Harbor Intl.) flight and hotel package?
Securing a Sofia (SOF) to Phoenix, AZ (PHX-Sky Harbor Intl.) Phoenix 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 Sofia (SOF) to Phoenix, AZ (PHX-Sky Harbor Intl.)?
If you booked your Sofia (SOF) to Phoenix, AZ (PHX-Sky Harbor Intl.) 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.

Travel information

Origin airport
Sofia
Destination airport
Sky Harbor Intl.
Airlines serving
Air Canada, Air France, Austrian Airlines, British Airways, JetBlue Airways, Lufthansa, Swiss International Air Lines, United
Roundtrip price
$962
Distance
6468 mi

Book with confidence

Sofia to Phoenix Flights

The cheapest times to fly from Sofia to Phoenix

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

 

The best time to book a flight from Sofia to Phoenix

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

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 Phoenix in 2026. You can also book with separate airlines for your outbound and return journeys, from $629 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 Phoenix 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 Phoenix 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 Phoenix Flights

*Flight schedules are subject to change.

*Available to One Key members.

 

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