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Sofia

$346+ 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 8/30. Fares are subject to change and may not be available on all flights or dates of travel.
PHX — SOF
Sep 10 — Sep 171
Thu 9/10
Thu 9/17
1 adult, Economy
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Cheap 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 11, 2026.

This United Airlines deal was found by Cheapflights users on 8/6. 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.
Sun 12/610:00 am -
2 stops18h 15m
Thu 12/106:25 am -
3 stops23h 49m
Deal found 8/6$751
This Expedia deal was found by Cheapflights users on 8/9. 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.
Wed 11/183:37 pm -
2 stops22h 18m
Sun 11/296:25 am -
2 stops24h 13m
Deal found 8/9$810
This oojo deal was found by Cheapflights users on 8/7. 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.
Fri 10/304:05 pm -
2 stops17h 15m
Fri 11/66:25 am -
2 stops21h 22m
Deal found 8/7$830
This FlightHub deal was found by Cheapflights users on 8/10. 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 -
2 stops36h 55m
Tue 10/136:10 am -
2 stops27h 05m
Deal found 8/10$836
This FlightHub deal was found by Cheapflights users on 8/10. 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.
Fri 10/307:37 pm -
2 stops18h 18m
Fri 11/66:25 am -
2 stops24h 13m
Deal found 8/10$848
This oojo deal was found by Cheapflights users on 8/9. 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 9/238:50 am -
2 stops28h 25m
Thu 10/86:30 am -
2 stops24h 19m
Deal found 8/9$856
This United Airlines deal was found by Cheapflights users on 8/10. 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 10/3011:20 am -
2 stops16h 55m
Fri 11/66:25 am -
3 stops24h 12m
Deal found 8/10$861
This United deal was found by Cheapflights users on 8/10. 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.
Tue 10/67:30 am -
3 stops29h 45m
Tue 10/136:10 am -
2 stops39h 43m
Deal found 8/10$862
This oojo deal was found by Cheapflights users on 8/6. 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.
Tue 9/228:55 am -
2 stops23h 45m
Mon 10/197:25 pm -
2 stops34h 49m
Deal found 8/6$867
This FlightHub deal was found by Cheapflights users on 8/6. 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.
Sun 9/209:45 am -
2 stops27h 15m
Mon 10/53:40 pm -
2 stops36h 58m
Deal found 8/6$874
This SWISS deal was found by Cheapflights users on 8/11. 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 SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/207:10 am -
2 stops21h 45m
Mon 10/53:40 pm -
2 stops40h 44m
Deal found 8/11$875

Find 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 11, 2026.

Round-trip from

$751
(United Airlines)

One-way from

$346
(Kiwi.com)

Popular in

September

Cheapest in

March

Average price

$890
From Phoenix to Sofia
Search Deals
One-way flight from Phoenix to Sofia
Search Deals
Highest demand for flights based on searches. 17% potential increase in price ($162 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($25 potential savings vs. average RT price).
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Average for round-trip flights in August 2026
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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 August 11, 2026.
Use the filters below to find and compare flights from Phoenix to Sofia that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PhoenixSofia

PHX Phoenix Sky Harbor Intl - SOF Sofia

PHXSOF

Phoenix Sky Harbor Intl

Sun 12/6

10:00 am-1:15 pm

2 stops18h 15m

Sofia

Thu 12/10

6:25 am-10:44 pm

2 stops25h 19m

$751
Quickest round-trip

PhoenixSofia

PHX Phoenix Sky Harbor Intl - SOF Sofia

PHXSOF

Phoenix Sky Harbor Intl

Fri 10/30

4:05 pm-6:20 pm

2 stops17h 15m

Sofia

Fri 11/6

6:25 am-6:47 pm

2 stops21h 22m

$830

PhoenixSofia

PHX Phoenix Sky Harbor Intl - SOF Sofia

PHXSOF

Phoenix Sky Harbor Intl

Fri 10/30

11:20 am-1:15 pm

2 stops16h 55m

Sofia

Fri 11/6

6:25 am-9:37 pm

3 stops24h 12m

$861

PhoenixSofia

PHX Phoenix Sky Harbor Intl - SOF Sofia

PHXSOF

Phoenix Sky Harbor Intl

Wed 11/18

3:37 pm-6:20 pm

2 stops17h 43m

Sofia

Sun 11/29

2:10 pm-9:25 pm

3 stops40h 15m

$862
Cheapest one-way

PhoenixSofia

PHX Phoenix Sky Harbor Intl - SOF Sofia

PHXSOF

Phoenix Sky Harbor Intl

Sun 8/30

6:35 am-11:30 am

3 stops42h 55m

$346

PhoenixSofia

PHX Phoenix Sky Harbor Intl - SOF Sofia

PHXSOF

Phoenix Sky Harbor Intl

Fri 9/4

2:05 pm-11:35 pm

3 stops47h 30m

$514
Quickest one-way

PhoenixSofia

PHX Phoenix Sky Harbor Intl - SOF Sofia

PHXSOF

Phoenix Sky Harbor Intl

Tue 9/1

4:35 pm-8:30 pm

1 stop17h 55m

$742

PhoenixSofia

PHX Phoenix Sky Harbor Intl - SOF Sofia

PHXSOF

Phoenix Sky Harbor Intl

Sat 8/29

9:05 pm-7:20 pm

1 stop36h 15m

$753

PhoenixSofia

PHX Phoenix Sky Harbor Intl - SOF Sofia

PHXSOF

Phoenix Sky Harbor Intl

Wed 9/2

4:35 pm-1:25 pm

1 stop34h 50m

$763

PhoenixSofia

PHX Phoenix Sky Harbor Intl - SOF Sofia

PHXSOF

Phoenix Sky Harbor Intl

Fri 9/4

9:05 pm-8:10 pm

1 stop37h 05m

$799

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/10

Sorted by cheapest first

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

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

Currently, March is the cheapest month in which you can book a flight from Phoenix to Sofia (average of $567). Flying from Phoenix to Sofia in September is currently the most expensive (average of $1,020). 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 to Sofia?

Airfare is below average for this route at the moment.
Phoenix to Sofia flights typically cost between $842 and $1,003 in December.
The cheapest round-trip price found within the last 5 days was $751 on United Airlines (Dec 6-Dec 10).

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 11, 2026.
See what other customers who have flown with United Airlines,Lufthansa, andBritish Airways 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.
United Airlines
7.4
Good
10,101 reviews

Crew

8.1

Food

6.7

Entertainment

7.1

Overall

7.4

Boarding

7.7

Comfort

7.3

Reviews

1 / 20
2.0
Mediocre

Dawn,Aug 2026

ORD - DEN

I missed my connecting flight because our plane took off ten minutes late and then when we got to the airport another plane was in our shoot waiting to get fueled up and that took 30 minutes so I missed my connecting flight. I asked if I could get off and they assured me the plane would most likely wait for me since they know what time the planes get in because of an app. I was not happy. I had to wait till 7:25 to board the next flight and then that was delayed. Gates changed till 9:20. Terrible
United Airlines
7.4
Good
10,101 reviews
United Airlines
7.4
Good
10,101 reviews

Crew

8.1

Food

6.7

Entertainment

7.1

Overall

7.4

Boarding

7.7

Comfort

7.3

Reviews

1 / 20
2.0
Mediocre

Dawn,Aug 2026

ORD - DEN

I missed my connecting flight because our plane took off ten minutes late and then when we got to the airport another plane was in our shoot waiting to get fueled up and that took 30 minutes so I missed my connecting flight. I asked if I could get off and they assured me the plane would most likely wait for me since they know what time the planes get in because of an app. I was not happy. I had to wait till 7:25 to board the next flight and then that was delayed. Gates changed till 9:20. Terrible
Lufthansa
6.8
Okay
8,176 reviews
United Airlines
7.4
Good
10,101 reviews

Crew

8.1

Food

6.7

Entertainment

7.1

Overall

7.4

Boarding

7.7

Comfort

7.3

Reviews

1 / 20
2.0
Mediocre

Dawn,Aug 2026

ORD - DEN

I missed my connecting flight because our plane took off ten minutes late and then when we got to the airport another plane was in our shoot waiting to get fueled up and that took 30 minutes so I missed my connecting flight. I asked if I could get off and they assured me the plane would most likely wait for me since they know what time the planes get in because of an app. I was not happy. I had to wait till 7:25 to board the next flight and then that was delayed. Gates changed till 9:20. Terrible
British Airways
6.7
Okay
8,155 reviews
United Airlines
7.4
Good
10,101 reviews

Crew

8.1

Food

6.7

Entertainment

7.1

Overall

7.4

Boarding

7.7

Comfort

7.3

Reviews

1 / 20
2.0
Mediocre

Dawn,Aug 2026

ORD - DEN

I missed my connecting flight because our plane took off ten minutes late and then when we got to the airport another plane was in our shoot waiting to get fueled up and that took 30 minutes so I missed my connecting flight. I asked if I could get off and they assured me the plane would most likely wait for me since they know what time the planes get in because of an app. I was not happy. I had to wait till 7:25 to board the next flight and then that was delayed. Gates changed till 9:20. Terrible

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. 3 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 15m. United Airlines provides one of the quickest options available for as low as $751. There are 6464 mi between Phoenix and Sofia.

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

    United Airlines, at $607, was found to be the cheapest airline from Phoenix to Sofia.Alternate airlines to your destination round-trip include Lufthansa and British Airways. Users have found that United Airlines is 18% 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, March is the cheapest month in which you can book a flight from Phoenix to Sofia (average of $567). Flying from Phoenix to Sofia in September is currently the most expensive (average of $1,020). 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

Top 3 airlines flying from Phoenix to Sofia

Discover the top 3 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 11, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$607Average$835FlexibilityNo cancel feeOn-time69%
LufthansaCheapest$617Average$799FlexibilityNo cancel feeOn-time76%
British AirwaysCheapest$639Average$697FlexibilityNo cancel feeOn-time70%

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