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Sofia

$782+ Cheap flights from Sky Harbor Intl (PHX) 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 10/12. Fares are subject to change and may not be available on all flights or dates of travel.
PHX — SOF
Aug 7 — Aug 141
Fri 8/7
Fri 8/14
1 adult, Economy
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Cheap flight deals from Sky Harbor Intl to Sofia

Cheapest flights from Sky Harbor Intl to Sofia
Explore the most affordable flight options available from Sky Harbor Intl to Sofia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 8, 2026.

This United Airlines deal was found by Cheapflights users on 7/6. 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.
Mon 10/123:30 pm
PHX
-
SOF
2 stops21h 45m
United Airlines
Fri 10/166:10 am
SOF
-
PHX
2 stops26h 35m
United Airlines
Deal found 7/6$782
This oojo deal was found by Cheapflights users on 7/6. 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 10/315:20 pm
PHX
-
SOF
2 stops40h 00m
Lufthansa
Sun 11/156:25 am
SOF
-
PHX
2 stops21h 37m
Lufthansa
Deal found 7/6$789
This FlightHub deal was found by Cheapflights users on 7/5. 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.
Tue 10/61:15 pm
PHX
-
SOF
2 stops19h 25m
Multiple Airlines
Thu 10/82:10 pm
SOF
-
PHX
2 stops30h 51m
Multiple Airlines
Deal found 7/5$803
This oojo deal was found by Cheapflights users on 7/3. 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.
Mon 8/172:19 pm
PHX
-
SOF
2 stops18h 21m
Lufthansa
Mon 8/247:00 pm
SOF
-
PHX
2 stops33h 49m
Lufthansa
Deal found 7/3$812
This oojo deal was found by Cheapflights users on 7/6. 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.
Mon 8/179:00 am
PHX
-
SOF
2 stops23h 40m
Lufthansa
Wed 9/236:10 am
SOF
-
PHX
2 stops26h 49m
Lufthansa
Deal found 7/6$824
This Justfly.com deal was found by Cheapflights users on 7/6. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/99:50 am
PHX
-
SOF
2 stops22h 50m
Multiple Airlines
Thu 10/156:30 am
SOF
-
PHX
2 stops39h 23m
Multiple Airlines
Deal found 7/6$825
This FlightHub deal was found by Cheapflights users on 7/6. 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.
Wed 8/59:08 am
PHX
-
SOF
2 stops28h 07m
Lufthansa
Wed 9/166:20 am
SOF
-
PHX
2 stops24h 48m
Lufthansa
Deal found 7/6$830
This FlightHub deal was found by Cheapflights users on 7/3. 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.
Mon 8/2411:32 am
PHX
-
SOF
2 stops21h 08m
Lufthansa
Mon 9/217:25 pm
SOF
-
PHX
2 stops37h 44m
Lufthansa
Deal found 7/3$841
This United Airlines deal was found by Cheapflights users on 7/6. 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 8/59:48 am
PHX
-
SOF
3 stops22h 52m
United Airlines
Wed 9/166:20 am
SOF
-
PHX
2 stops25h 09m
United Airlines
Deal found 7/6$842
This FlightHub deal was found by Cheapflights users on 7/6. 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.
Mon 8/3111:55 am
PHX
-
SOF
2 stops44h 05m
Multiple Airlines
Mon 9/73:40 pm
SOF
-
PHX
2 stops41h 29m
Multiple Airlines
Deal found 7/6$846
This oojo deal was found by Cheapflights users on 7/5. 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.
Wed 9/99:05 pm
PHX
-
SOF
1 stop30h 20m
British Airways
Wed 10/149:25 pm
SOF
-
PHX
1 stop31h 40m
British Airways
Deal found 7/5$848

Find flight deals from Sky Harbor Intl to Sofia

Discover tips and strategies to find the most affordable flight options for your journey from Sky Harbor Intl (PHX) 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 July 8, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$782
(United Airlines)

Popular in

August

Cheapest in

November

Average price

$756
Provider with most accurate pricing for Phoenix Sky Harbor Intl-Sofia flight deals.
Search Deals
Provider most trusted by Cheapflights users for Phoenix Sky Harbor Intl-Sofia flights.
Search Deals
From Phoenix Sky Harbor Intl to Sofia
Search Deals
Highest demand for flights based on searches. 10% potential increase in price ($87 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($11 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Sky Harbor Intl 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 July 8, 2026.
Use the filters below to find and compare flights from Phoenix Sky Harbor Intl Airport to Sofia that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PhoenixSofia

PHX - SOF

PHXSOF

Phoenix Sky Harbor Intl

Tue 10/6

7:30 am-11:15 pm

3 stops29h 45m

Sofia

Thu 10/8

2:10 pm-11:01 am

2 stops30h 51m

$809

PhoenixSofia

PHX - SOF

PHXSOF

Phoenix Sky Harbor Intl

Wed 9/9

1:34 pm-6:40 pm

2 stops19h 06m

Sofia

Wed 10/14

6:20 am-8:49 pm

3 stops24h 29m

$842

PhoenixSofia

PHX - SOF

PHXSOF

Phoenix Sky Harbor Intl

Wed 8/19

6:15 am-1:25 pm

3 stops21h 10m

Sofia

Wed 9/30

6:10 am-8:49 pm

2 stops24h 39m

$854

PhoenixSofia

PHX - SOF

PHXSOF

Phoenix Sky Harbor Intl

Mon 8/17

10:10 pm-8:30 pm

2 stops36h 20m

Sofia

Mon 8/24

8:10 pm-7:00 pm

1 stop32h 50m

$892

PhoenixSofia

PHX - SOF

PHXSOF

Phoenix Sky Harbor Intl

Mon 8/17

2:19 pm-11:15 pm

2 stops22h 56m

Sofia

Sun 10/4

6:20 am-8:49 pm

3 stops24h 29m

$902
Quickest round-trip

PhoenixSofia

PHX - SOF

PHXSOF

Phoenix Sky Harbor Intl

Tue 7/28

8:30 am-1:05 pm

2 stops18h 35m

Sofia

Tue 9/1

6:10 am-5:10 pm

2 stops21h 00m

$936

PhoenixSofia

PHX - SOF

PHXSOF

Phoenix Sky Harbor Intl

Sat 9/19

4:49 pm-6:40 pm

2 stops39h 51m

Sofia

Sun 10/4

6:20 am-8:49 pm

3 stops24h 29m

$937

PhoenixSofia

PHX - SOF

PHXSOF

Phoenix Sky Harbor Intl

Sat 9/19

4:49 pm-6:40 pm

2 stops39h 51m

Sofia

Sat 10/3

6:20 am-3:43 pm

2 stops19h 23m

$937

PhoenixSofia

PHX - SOF

PHXSOF

Phoenix Sky Harbor Intl

Mon 8/31

6:00 am-1:25 pm

3 stops21h 25m

Sofia

Mon 9/7

6:20 am-5:56 pm

2 stops21h 36m

$944

PhoenixSofia

PHX - SOF

PHXSOF

Phoenix Sky Harbor Intl

Wed 7/29

6:00 am-6:40 pm

3 stops26h 40m

Sofia

Tue 9/1

6:10 am-8:24 pm

2 stops24h 14m

$949

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/6

Showing 1-10 of 17 resultsSorted by cheapest first
1
2

Compare providers for flights from Sky Harbor Intl to Sofia

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Sky Harbor Intl to Sofia in July.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Phoenix Sky Harbor Intl Airport-Sofia flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Phoenix Sky Harbor Intl Airport-Sofia flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Phoenix Sky Harbor Intl Airport-Sofia flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Phoenix Sky Harbor Intl Airport-Sofia flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Phoenix Sky Harbor Intl Airport-Sofia flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Sky Harbor Intl to Sofia

Have a flexible travel schedule? Discover the best time to fly to Sofia from Sky Harbor Intl 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 Sky Harbor Intl Airport to Sofia

What is the cheapest month to book a flight from Phoenix Sky Harbor Intl Airport to Sofia?

Currently, November is the cheapest month in which you can book a flight from Phoenix Sky Harbor Intl Airport to Sofia (average of $568). Flying from Phoenix Sky Harbor Intl Airport to Sofia in August is currently the most expensive (average of $855). 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.

How much does it cost to fly round-trip from Phoenix Sky Harbor Intl Airport to Sofia?

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 July 8, 2026.
Read reviews from past customers who have flown United Airlines,Lufthansa, andBritish Airways from Phoenix Sky Harbor Intl Airport to Sofia. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,951 reviews

Crew

8.1

Comfort

7.3

Entertainment

7.1

Food

6.7

Boarding

7.7

Overall

7.4

Reviews

1 / 20
6.0
Good

ROHIT,Jun 2026

IND - EWR

It should not be delayed by 2 hours. I missed the important event due to this
United Airlines
7.4
Good
9,951 reviews
United Airlines
7.4
Good
9,951 reviews

Crew

8.1

Comfort

7.3

Entertainment

7.1

Food

6.7

Boarding

7.7

Overall

7.4

Reviews

1 / 20
6.0
Good

ROHIT,Jun 2026

IND - EWR

It should not be delayed by 2 hours. I missed the important event due to this
Lufthansa
6.8
Okay
8,125 reviews
United Airlines
7.4
Good
9,951 reviews

Crew

8.1

Comfort

7.3

Entertainment

7.1

Food

6.7

Boarding

7.7

Overall

7.4

Reviews

1 / 20
6.0
Good

ROHIT,Jun 2026

IND - EWR

It should not be delayed by 2 hours. I missed the important event due to this
British Airways
6.7
Okay
8,104 reviews
United Airlines
7.4
Good
9,951 reviews

Crew

8.1

Comfort

7.3

Entertainment

7.1

Food

6.7

Boarding

7.7

Overall

7.4

Reviews

1 / 20
6.0
Good

ROHIT,Jun 2026

IND - EWR

It should not be delayed by 2 hours. I missed the important event due to this

Related info for your journey

Find useful and relevant information for your journey from Sky Harbor Intl 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 Sky Harbor Intl?

    For a flight from Phoenix Sky Harbor Intl to Sofia, you will be flying into Sofia. Sofia (SOF) is just 4.2 mi from the center of the city. Sofia is the only Sofia airport and it handles 0 inbound flights from Phoenix Sky Harbor Intl per day. 3 airlines have flights to Sofia from Phoenix Sky Harbor Intl on a regular basis.

  • How long is the flight from Phoenix Sky Harbor Intl Airport to Sofia?

    For as low as $842, United Airlines can have you in Sofia from Phoenix Sky Harbor Intl Airport in 19h 06m. Phoenix Sky Harbor Intl Airport and Sofia are separated by a distance of 6464 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines flying from Phoenix Sky Harbor Intl Airport to Sofia round-trip?

    Flying on Lufthansa is currently your cheapest option to Sofia, with prices starting at $617. Additional round-trip tickets that might be worth considering are offered by United Airlines and British Airways, with the lowest prices starting at $621 and $639, respectively. You may be able to fly from Phoenix Sky Harbor Intl Airport to Sofia for 15% less than the average price by searching for these airlines.

  • Can I find deals for flights from Sky Harbor Intl to Sofia that include hotel bookings?

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

  • How can I find direct flights from Sky Harbor Intl to Sofia?

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

  • Can I find deals for business class flights from Sky Harbor Intl to Sofia?

    Yes. Cheapflights offers flight deals from Sky Harbor Intl 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 Sky Harbor Intl Airport to Sofia?

    Currently, November is the cheapest month in which you can book a flight from Phoenix Sky Harbor Intl Airport to Sofia (average of $568). Flying from Phoenix Sky Harbor Intl Airport to Sofia in August is currently the most expensive (average of $855). 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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Complete your trip

Complete your trip to Sofia by adding a car rental and/or hotel reservation to your travel itinerary.
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Top 3 airlines flying from Sky Harbor Intl to Sofia

Discover the top 3 airlines that operate flights from Sky Harbor Intl 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 July 8, 2026.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest$617Average$799FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$621Average$817FlexibilityNo cancel feeOn-time69%
British AirwaysCheapest$639Average$697FlexibilityNo cancel feeOn-time70%

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