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Sofia

$699+ Cheap flights from Phoenix to Sofia (SOF)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/8. Fares are subject to change and may not be available on all flights or dates of travel.
PHX — SOF
Aug 23 — Aug 301
Sat 8/23
Sat 8/30
1 adult, Economy
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Cheapflights Tip: The best prices from Phoenix to Sofia are usually found in October or March, booked 39 days in advance, depart on a Saturday or Monday and return on a Friday

Cheap flight deals from Phoenix to Sofia

Discover tips and strategies to find the most affordable flight options for your journey from Phoenix (PH1) to Sofia (SOF). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated August 18, 2025.

Round-trip from

$699
(United)

Popular in

May

Cheapest in

October

Average price

$735
From Phoenix to Sofia
Search Deals
Highest demand for flights based on searches. 18% potential increase in price ($209 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($30 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in August 2025
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Find flight deals from Phoenix to Sofia

Cheapest flights from Phoenix to Sofia
Explore the most affordable flight options available from Phoenix to Sofia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 18, 2025.

This United deal was found by Cheapflights users on 8/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/81:35 pmPHX - SOF
2 stops18h 15mMultiple Airlines
Fri 10/106:15 amSOF - PHX
2 stops36h 44mMultiple Airlines
Deal found 8/16$699
This Gotogate deal was found by Cheapflights users on 8/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/2011:20 amPHX - SOF
2 stops37h 55mMultiple Airlines
Fri 10/2412:00 pmSOF - PHX
2 stops32h 22mMultiple Airlines
Deal found 8/17$747
This Cheapflightsfares deal was found by Cheapflights users on 8/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/11:45 pmPHX - SOF
2 stops18h 55mLufthansa
Thu 10/306:00 amSOF - PHX
2 stops23h 44mLufthansa
Deal found 8/17$759
This Air Canada deal was found by Cheapflights users on 8/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/307:40 amPHX - SOF
2 stops30h 15mMultiple Airlines
Tue 10/76:20 amSOF - PHX
2 stops38h 02mMultiple Airlines
Deal found 8/16$773
This FlightHub deal was found by Cheapflights users on 8/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/2011:20 amPHX - SOF
2 stops37h 55mAir Canada
Tue 9/302:00 pmSOF - PHX
2 stops30h 22mAir Canada
Deal found 8/17$778
This Ovago deal was found by Cheapflights users on 8/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/206:40 pmPHX - SOF
1 stop15h 40mBritish Airways
Fri 10/242:20 pmSOF - PHX
2 stops37h 29mBritish Airways
Deal found 8/17$829
This United Airlines deal was found by Cheapflights users on 8/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/14:35 pmPHX - SOF
2 stops20h 25mUnited Airlines
Sat 10/116:15 amSOF - PHX
2 stops36h 08mUnited Airlines
Deal found 8/17$842
This United Airlines deal was found by Cheapflights users on 8/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/261:41 pmPHX - SOF
2 stops23h 19mUnited Airlines
Sat 10/116:15 amSOF - PHX
2 stops36h 08mUnited Airlines
Deal found 8/17$902
This Ovago deal was found by Cheapflights users on 8/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/16:40 pmPHX - SOF
1 stop32h 50mMultiple Airlines
Sat 10/116:25 amSOF - PHX
2 stops20h 54mMultiple Airlines
Deal found 8/17$1,091

Cheapflights Fare Finder

 
Customize your flight search to find flights from Phoenix to Sofia that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated August 18, 2025.
Use the filters below to find and compare flights from Phoenix to Sofia that are best for you.

Fly from

Phoenix

Fly to

Sofia

Route

Depart

Return

Price

PhoenixSofia

PHX - SOF

PHXSOF

Phoenix Sky Harbor Intl

Mon 9/8

1:35 pm-5:50 pm

2 stops18h 15m

Sofia

Fri 10/10

6:15 am-8:59 am

2 stops36h 44m

$699

PhoenixSofia

PHX - SOF

PHXSOF

Phoenix Sky Harbor Intl

Sat 9/20

11:20 am-11:15 am

2 stops37h 55m

Sofia

Fri 10/24

12:00 pm-10:22 am

2 stops32h 22m

$747

PhoenixSofia

PHX - SOF

PHXSOF

Phoenix Sky Harbor Intl

Wed 10/1

1:45 pm-6:40 pm

2 stops18h 55m

Sofia

Thu 10/30

6:00 am-8:44 pm

2 stops23h 44m

$759

PhoenixSofia

PHX - SOF

PHXSOF

Phoenix Sky Harbor Intl

Tue 9/30

7:40 am-11:55 pm

2 stops30h 15m

Sofia

Tue 10/7

6:20 am-10:22 am

2 stops38h 02m

$773

PhoenixSofia

PHX - SOF

PHXSOF

Phoenix Sky Harbor Intl

Sat 9/20

11:20 am-11:15 am

2 stops37h 55m

Sofia

Tue 9/30

2:00 pm-10:22 am

2 stops30h 22m

$778

PhoenixSofia

PHX - SOF

PHXSOF

Phoenix Sky Harbor Intl

Sat 9/20

6:40 pm-8:20 pm

1 stop15h 40m

Sofia

Fri 10/24

2:20 pm-5:49 pm

2 stops37h 29m

$829

PhoenixSofia

PHX - SOF

PHXSOF

Phoenix Sky Harbor Intl

Wed 10/1

4:35 pm-11:00 pm

2 stops20h 25m

Sofia

Sat 10/11

6:15 am-8:23 am

2 stops36h 08m

$842

PhoenixSofia

PHX - SOF

PHXSOF

Phoenix Sky Harbor Intl

Fri 9/26

1:41 pm-11:00 pm

2 stops23h 19m

Sofia

Sat 10/11

6:15 am-8:23 am

2 stops36h 08m

$902

PhoenixSofia

PHX - SOF

PHXSOF

Phoenix Sky Harbor Intl

Wed 10/15

9:00 am-10:00 pm

3 stops27h 00m

$1,500

PhoenixSofia

PHX - SOF

PHXSOF

Phoenix Sky Harbor Intl

Wed 10/15

8:40 pm-1:30 pm

1 stop30h 50m

$3,431

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/17

Best time to book a flight from Phoenix to Sofia

Have a flexible travel schedule? Discover the best time to fly to Sofia from Phoenix with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Phoenix to Sofia

How far ahead should I book a flight from Phoenix to Sofia?

Use this chart to determine the optimal time to book a round-trip flight from Phoenix to Sofia. Price data was last updated on August 8, 2025.

Booking 39 days in advance of your planned departure date is, on average, the best time to get cheap flights from Phoenix to Sofia. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Phoenix to Sofia?

Currently, November is the cheapest month in which you can book a flight from Phoenix to Sofia (average of $632). Flying from Phoenix to Sofia in June is currently the most expensive (average of $1,186). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from PHX to SOF?

Find hourly flight availability from Phoenix to Sofia. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 18, 2025.

It’s typically best to fly out from Phoenix to Sofia at noon. Doing so could potentially save you 6% on the flight price compared to flying in the morning, which is usually more expensive.

What is the cheapest day to fly from Phoenix to Sofia?

Use this chart to determine the cheapest time to fly round-trip from Phoenix to Sofia. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Phoenix to Sofia flight should consider departing on Saturday evenings when fares are most often at their lowest. Friday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing Sofia

Get insights into the airlines that provide service to Sofia. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Sofia. Reviews last updated August 18, 2025.
See what other customers who have flown with Austrian Airlines, United Airlines, and American Airlines from Phoenix to Sofia have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Austrian Airlines
7.6
Good
829 reviews

Entertainment

6.8

Crew

8.1

Food

6.8

Boarding

7.6

Comfort

7.3

Overall

7.6

Reviews

1 / 20
10.0
Excellent

Dominik,Jun 2025

VIE - VNO

Good service and update all information. I feel like i wanna use it again next time
Austrian Airlines
7.6
Good
829 reviews
Austrian Airlines
7.6
Good
829 reviews

Entertainment

6.8

Crew

8.1

Food

6.8

Boarding

7.6

Comfort

7.3

Overall

7.6

Reviews

1 / 20
10.0
Excellent

Dominik,Jun 2025

VIE - VNO

Good service and update all information. I feel like i wanna use it again next time
United Airlines
7.4
Good
8,925 reviews
Austrian Airlines
7.6
Good
829 reviews

Entertainment

6.8

Crew

8.1

Food

6.8

Boarding

7.6

Comfort

7.3

Overall

7.6

Reviews

1 / 20
10.0
Excellent

Dominik,Jun 2025

VIE - VNO

Good service and update all information. I feel like i wanna use it again next time
American Airlines
7.2
Good
10,000 reviews
Austrian Airlines
7.6
Good
829 reviews

Entertainment

6.8

Crew

8.1

Food

6.8

Boarding

7.6

Comfort

7.3

Overall

7.6

Reviews

1 / 20
10.0
Excellent

Dominik,Jun 2025

VIE - VNO

Good service and update all information. I feel like i wanna use it again next time
Lufthansa
6.8
Okay
7,330 reviews
Austrian Airlines
7.6
Good
829 reviews

Entertainment

6.8

Crew

8.1

Food

6.8

Boarding

7.6

Comfort

7.3

Overall

7.6

Reviews

1 / 20
10.0
Excellent

Dominik,Jun 2025

VIE - VNO

Good service and update all information. I feel like i wanna use it again next time
British Airways
6.7
Okay
7,277 reviews
Austrian Airlines
7.6
Good
829 reviews

Entertainment

6.8

Crew

8.1

Food

6.8

Boarding

7.6

Comfort

7.3

Overall

7.6

Reviews

1 / 20
10.0
Excellent

Dominik,Jun 2025

VIE - VNO

Good service and update all information. I feel like i wanna use it again next time

Related info for your journey

Find useful and relevant information for your journey from Phoenix to Sofia. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Sofia from Phoenix?

    Sofia (SOF), located 4.2 mi from the city center, is the airport you fly into when you book flights from Phoenix to Sofia. 7 airlines have flights to Sofia from Phoenix on a regular basis. Booking flights from Phoenix to Sofia should not be difficult; the airport handles an average of 0 inbound flights from Phoenix per day.

  • How long is the flight from Phoenix to Sofia?

    A quick flight from Phoenix to Sofia can take about 18h 55m. Lufthansa provides one of the quickest options available for as low as $759. There are 6464 mi between Phoenix and Sofia.

  • What are the cheapest airlines flying from Phoenix to Sofia round-trip?

    Austrian Airlines, at $571, was found to be the cheapest airline from Phoenix to Sofia.Alternate airlines to your destination round-trip include American Airlines and United Airlines. Users have found that Austrian Airlines is 36% cheaper than the other options available to this destination.

  • Can I find deals for flights from Phoenix to Sofia that include hotel bookings?

    Yes. In addition to deals on Phoenix to Sofia flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Phoenix to Sofia?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Phoenix to Sofia.

  • Can I find deals for business class flights from Phoenix to Sofia?

    Yes. Cheapflights offers flight deals from Phoenix to Sofia by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Phoenix to Sofia?

    Currently, November is the cheapest month in which you can book a flight from Phoenix to Sofia (average of $632). Flying from Phoenix to Sofia in June is currently the most expensive (average of $1,186). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Phoenix to Sofia

See prices for flight routes from nearby airports that may be better suited for you.
Las Vegas to Sofia flights
Sky Harbor Intl to Sofia flights
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Top 7 airlines flying from Phoenix to Sofia

Discover the top 7 airlines that operate flights from Phoenix to Sofia. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated August 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
Austrian AirlinesCheapest$571Average$1,010FlexibilityNo cancel feeOn-time78%
American AirlinesCheapest$621Average$1,157FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$629Average$949FlexibilityNo cancel feeOn-time69%
LufthansaCheapest$662Average$1,019FlexibilityNo cancel feeOn-time76%
KLMCheapest$665Average$981FlexibilityNo cancel feeOn-time75%
British AirwaysCheapest$818Average$1,308FlexibilityNo cancel feeOn-time70%
Air CanadaCheapest$933Average$1,018FlexibilityNo cancel feeOn-time67%

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