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$461+ Cheap flights from Phoenix to Sofia (SOF)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/13. Fares are subject to change and may not be available on all flights or dates of travel.
PHX — SOF
Dec 29 — Jan 51
Mon 12/29
Mon 1/5
1 adult, Economy
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Cheapflights Tip: The best prices from Phoenix to Sofia are usually found in March or September, booked 68 days in advance, depart on a Saturday or Monday and return on a Friday

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 November 29, 2025.

This United Airlines deal was found by Cheapflights users on 11/29. 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.
Sat 12/65:00 pmPHX - SOF
2 stops40h 20mUnited Airlines
Sun 12/146:10 amSOF - PHX
2 stops25h 47mUnited Airlines
Deal found 11/29$543
This oojo deal was found by Cheapflights users on 11/29. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/68:25 pmPHX - SOF
1 stop34h 55mBritish Airways
Sun 12/142:30 pmSOF - PHX
2 stops37h 44mBritish Airways
Deal found 11/29$874
This United Airlines deal was found by Cheapflights users on 11/28. 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.
Tue 12/237:40 pmPHX - SOF
2 stops33h 10mUnited Airlines
Wed 1/72:00 pmSOF - PHX
2 stops38h 22mUnited Airlines
Deal found 11/28$963
This United Airlines deal was found by Cheapflights users on 11/28. 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.
Thu 12/256:45 amPHX - SOF
2 stops31h 00mUnited Airlines
Wed 1/72:25 pmSOF - PHX
2 stops53h 29mUnited Airlines
Deal found 11/28$1,004
This United Airlines deal was found by Cheapflights users on 11/28. 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 12/245:40 pmPHX - SOF
2 stops44h 05mUnited Airlines
Tue 1/62:15 pmSOF - PHX
2 stops58h 49mUnited Airlines
Deal found 11/28$1,015
This Ovago deal was found by Cheapflights users on 11/27. 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.
Thu 11/2711:59 pmPHX - SOF
2 stops35h 51mTurkish Airlines
Fri 12/129:40 pmSOF - PHX
2 stops34h 05mTurkish Airlines
Deal found 11/27$1,078
This Ovago deal was found by Cheapflights users on 11/27. 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.
Thu 11/2711:59 pmPHX - SOF
2 stops30h 11mTurkish Airlines
Thu 12/114:00 pmSOF - PHX
2 stops39h 44mTurkish Airlines
Deal found 11/27$1,088
This United Airlines deal was found by Cheapflights users on 11/28. 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.
Tue 12/235:40 pmPHX - SOF
2 stops35h 10mUnited Airlines
Tue 1/62:15 pmSOF - PHX
2 stops57h 04mUnited Airlines
Deal found 11/28$1,183
This United Airlines deal was found by Cheapflights users on 11/28. 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.
Thu 12/257:29 amPHX - SOF
2 stops30h 16mUnited Airlines
Mon 1/52:20 pmSOF - PHX
2 stops40h 54mUnited Airlines
Deal found 11/28$1,206
This Expedia deal was found by Cheapflights users on 11/27. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/2711:59 pmPHX - SOF
2 stops23h 46mMultiple Airlines
Wed 12/109:35 amSOF - PHX
2 stops38h 06mMultiple Airlines
Deal found 11/27$1,223

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 November 29, 2025.

Round-trip from

$544
(Lufthansa)

One-way from

$461
(Kiwi.com)

Popular in

December

Cheapest in

March
From Phoenix to Sofia
Search Deals
One-way flight from Phoenix to Sofia
Search Deals
Highest demand for flights based on searches. 12% potential increase in price ($129 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($34 potential savings vs. average RT price).
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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 November 29, 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

Wed 1/28

3:50 pm-10:45 pm

2 stops21h 55m

Sofia

Sun 2/1

6:10 am-10:59 pm

2 stops25h 49m

$544

PhoenixSofia

PHX - SOF

PHXSOF

Phoenix Sky Harbor Intl

Mon 5/4

2:55 pm-11:10 pm

2 stops22h 15m

Sofia

Mon 5/18

6:40 pm-5:55 pm

2 stops33h 15m

$619

PhoenixSofia

PHX - SOF

PHXSOF

Phoenix Sky Harbor Intl

Mon 5/4

6:00 am-6:40 pm

2 stops26h 40m

Sofia

Mon 5/18

12:50 pm-5:55 pm

2 stops39h 05m

$628

PhoenixSofia

PHX - SOF

PHXSOF

Phoenix Sky Harbor Intl

Mon 5/4

9:46 pm-8:40 pm

2 stops36h 54m

Sofia

Mon 5/18

8:00 pm-7:00 pm

1 stop33h 00m

$749

PhoenixSofia

PHX - SOF

PHXSOF

Phoenix Sky Harbor Intl

Tue 12/23

7:40 pm-1:50 pm

2 stops33h 10m

Sofia

Wed 1/7

2:00 pm-7:22 pm

2 stops38h 22m

$963

PhoenixSofia

PHX - SOF

PHXSOF

Phoenix Sky Harbor Intl

Thu 12/25

6:45 am-10:45 pm

2 stops31h 00m

Sofia

Wed 1/7

2:25 pm-10:54 am

2 stops53h 29m

$1,004

PhoenixSofia

PHX - SOF

PHXSOF

Phoenix Sky Harbor Intl

Sat 12/13

6:42 pm-2:55 am

3 stops47h 13m

$461

PhoenixSofia

PHX - SOF

PHXSOF

Phoenix Sky Harbor Intl

Sat 12/13

8:25 pm-4:20 pm

1 stop34h 55m

$582

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/29

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 November 21, 2025.

Booking 6 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 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 November 29, 2025.

It’s typically best to fly out from Phoenix to Sofia at noon. Doing so could potentially save you 5% 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 Thursday at noon 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 November 29, 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
875 reviews

Crew

8.1

Boarding

7.6

Entertainment

6.8

Food

6.8

Comfort

7.3

Overall

7.6

Reviews

1 / 20
10.0
Excellent

Andrew,Sep 2025

FLR - VIE

Staff was really nice, they provided water as a beverage. Otherwise you had to purchase beverages or food. A complementary chocolate was provided at the end of the flight.
Austrian Airlines
7.6
Good
875 reviews
Austrian Airlines
7.6
Good
875 reviews

Crew

8.1

Boarding

7.6

Entertainment

6.8

Food

6.8

Comfort

7.3

Overall

7.6

Reviews

1 / 20
10.0
Excellent

Andrew,Sep 2025

FLR - VIE

Staff was really nice, they provided water as a beverage. Otherwise you had to purchase beverages or food. A complementary chocolate was provided at the end of the flight.
United Airlines
7.4
Good
9,057 reviews
Austrian Airlines
7.6
Good
875 reviews

Crew

8.1

Boarding

7.6

Entertainment

6.8

Food

6.8

Comfort

7.3

Overall

7.6

Reviews

1 / 20
10.0
Excellent

Andrew,Sep 2025

FLR - VIE

Staff was really nice, they provided water as a beverage. Otherwise you had to purchase beverages or food. A complementary chocolate was provided at the end of the flight.
American Airlines
7.2
Good
11,043 reviews
Austrian Airlines
7.6
Good
875 reviews

Crew

8.1

Boarding

7.6

Entertainment

6.8

Food

6.8

Comfort

7.3

Overall

7.6

Reviews

1 / 20
10.0
Excellent

Andrew,Sep 2025

FLR - VIE

Staff was really nice, they provided water as a beverage. Otherwise you had to purchase beverages or food. A complementary chocolate was provided at the end of the flight.
Lufthansa
6.8
Okay
7,598 reviews
Austrian Airlines
7.6
Good
875 reviews

Crew

8.1

Boarding

7.6

Entertainment

6.8

Food

6.8

Comfort

7.3

Overall

7.6

Reviews

1 / 20
10.0
Excellent

Andrew,Sep 2025

FLR - VIE

Staff was really nice, they provided water as a beverage. Otherwise you had to purchase beverages or food. A complementary chocolate was provided at the end of the flight.
British Airways
6.7
Okay
7,545 reviews
Austrian Airlines
7.6
Good
875 reviews

Crew

8.1

Boarding

7.6

Entertainment

6.8

Food

6.8

Comfort

7.3

Overall

7.6

Reviews

1 / 20
10.0
Excellent

Andrew,Sep 2025

FLR - VIE

Staff was really nice, they provided water as a beverage. Otherwise you had to purchase beverages or food. A complementary chocolate was provided at the end of the flight.

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 21h 55m. United Airlines provides one of the quickest options available for as low as $544. There are 6464 mi between Phoenix and Sofia. This flight may include one or multiple stops.

  • 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 United Airlines and Lufthansa. Users have found that Austrian Airlines is 37% 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.

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.
Sky Harbor Intl to Sofia flights
Las Vegas to Sofia flights
Tucson to Sofia flights

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 November 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
Austrian AirlinesCheapest$571Average$1,019FlexibilityNo cancel feeOn-time78%
United AirlinesCheapest$629Average$965FlexibilityNo cancel feeOn-time69%
LufthansaCheapest$649Average$1,039FlexibilityNo cancel feeOn-time76%
American AirlinesCheapest$713Average$1,182FlexibilityNo cancel feeOn-time71%
KLMCheapest$733Average$1,020FlexibilityNo cancel feeOn-time75%
British AirwaysCheapest$922Average$1,360FlexibilityNo cancel feeOn-time70%
Air CanadaCheapest$933Average$1,018FlexibilityNo cancel feeOn-time67%

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