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Sofia

$327+ Cheap flights from Sky Harbor Intl (PHX) 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 10/10. Fares are subject to change and may not be available on all flights or dates of travel.
PHX — SOF
Oct 17 — Oct 241
Fri 10/17
Fri 10/24
1 adult, Economy
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Cheapflights Tip: The best prices from Phoenix Sky Harbor Intl to Sofia are usually found in March or October, booked 56 days in advance, depart on a Saturday or Monday and return on a Friday

Cheap 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 September 17, 2025.

Round-trip from

$576
(Gotogate)

One-way from

$327
(Kiwi.com)

Popular in

May

Cheapest in

March

Average price

$732
From Phoenix Sky Harbor Intl to Sofia
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One-way flight from Phoenix Sky Harbor Intl to Sofia
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Highest demand for flights based on searches. 19% potential increase in price ($217 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).
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Average for round-trip flights in September 2025
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Find 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 September 17, 2025.

This Gotogate deal was found by Cheapflights users on 9/15. 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.
Thu 11/68:00 amPHX - SOF
2 stops20h 50mAir Canada
Wed 11/196:10 amSOF - PHX
2 stops25h 10mAir Canada
Deal found 9/15$576
This British Airways deal was found by Cheapflights users on 9/15. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/68:25 pmPHX - SOF
1 stop29h 50mBritish Airways
Wed 11/199:00 pmSOF - PHX
1 stop30h 15mBritish Airways
Deal found 9/15$600
This Priceline deal was found by Cheapflights users on 9/17. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/157:30 amPHX - SOF
2 stops24h 20mAir Canada
Wed 10/226:15 amSOF - PHX
2 stops23h 26mAir Canada
Deal found 9/17$610
This Cheapflightsfares deal was found by Cheapflights users on 9/15. 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 stops23h 15mLufthansa
Thu 10/306:00 amSOF - PHX
2 stops23h 44mLufthansa
Deal found 9/15$664
This Air Canada deal was found by Cheapflights users on 9/15. 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 11/256:30 pmPHX - SOF
2 stops38h 30mMultiple Airlines
Sun 11/306:10 amSOF - PHX
2 stops38h 34mMultiple Airlines
Deal found 9/15$677
This Orbitz deal was found by Cheapflights users on 9/15. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/262:30 pmPHX - SOF
2 stops18h 50mMultiple Airlines
Sun 11/3011:00 amSOF - PHX
2 stops33h 44mMultiple Airlines
Deal found 9/15$684
This Ovago deal was found by Cheapflights users on 9/15. 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.
Tue 11/258:25 pmPHX - SOF
1 stop14h 45mBritish Airways
Sun 11/302:30 pmSOF - PHX
1 stop36h 50mBritish Airways
Deal found 9/15$736
This United Airlines deal was found by Cheapflights users on 9/15. 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 10/13:32 pmPHX - SOF
2 stops21h 18mUnited Airlines
Sun 10/56:00 amSOF - PHX
2 stops28h 15mUnited Airlines
Deal found 9/15$751

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 September 17, 2025.
Use the filters below to find and compare flights from Phoenix Sky Harbor Intl Airport to Sofia that are best for you.

Fly from

Sky Harbor Intl

Fly to

Sofia

Route

Depart

Return

Price

PhoenixSofia

PHX - SOF

PHXSOF

Phoenix Sky Harbor Intl

Thu 11/6

8:25 pm-11:15 am

1 stop29h 50m

Sofia

Wed 11/19

9:00 pm-6:15 pm

1 stop30h 15m

$600

PhoenixSofia

PHX - SOF

PHXSOF

Phoenix Sky Harbor Intl

Wed 10/15

7:30 am-5:50 pm

2 stops24h 20m

Sofia

Wed 10/22

6:15 am-7:41 pm

2 stops23h 26m

$610

PhoenixSofia

PHX - SOF

PHXSOF

Phoenix Sky Harbor Intl

Wed 10/1

10:41 am-11:00 pm

2 stops26h 19m

Sofia

Thu 10/30

6:00 am-6:44 pm

2 stops21h 44m

$665

PhoenixSofia

PHX - SOF

PHXSOF

Phoenix Sky Harbor Intl

Tue 11/25

6:30 pm-6:00 pm

2 stops38h 30m

Sofia

Sun 11/30

6:10 am-11:44 am

2 stops38h 34m

$677

PhoenixSofia

PHX - SOF

PHXSOF

Phoenix Sky Harbor Intl

Wed 11/26

2:30 pm-6:20 pm

2 stops18h 50m

Sofia

Sun 11/30

11:00 am-11:44 am

2 stops33h 44m

$684

PhoenixSofia

PHX - SOF

PHXSOF

Phoenix Sky Harbor Intl

Tue 11/25

3:07 pm-8:10 pm

2 stops20h 03m

Sofia

Sun 11/30

2:30 pm-6:20 pm

1 stop36h 50m

$744

PhoenixSofia

PHX - SOF

PHXSOF

Phoenix Sky Harbor Intl

Wed 10/1

3:32 pm-10:50 pm

2 stops21h 18m

Sofia

Sun 10/5

6:00 am-12:15 am

2 stops28h 15m

$751

PhoenixSofia

PHX - SOF

PHXSOF

Phoenix Sky Harbor Intl

Fri 11/21

11:33 am-10:45 pm

2 stops26h 12m

Sofia

Wed 11/26

6:10 am-7:49 pm

2 stops22h 39m

$773

PhoenixSofia

PHX - SOF

PHXSOF

Phoenix Sky Harbor Intl

Wed 10/15

7:30 am-5:55 pm

2 stops24h 25m

Sofia

Wed 10/22

7:25 pm-7:19 pm

3 stops33h 54m

$813

PhoenixSofia

PHX - SOF

PHXSOF

Phoenix Sky Harbor Intl

Fri 10/10

10:45 am-9:45 am

2 stops37h 00m

$327

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/16

Showing 1-10 of 17 results
1
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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

How far ahead should I book a flight from Phoenix Sky Harbor Intl Airport to Sofia?

Use this chart to determine the optimal time to book a round-trip flight from Sky Harbor Intl to Sofia. Price data was last updated on September 12, 2025.

To ensure you get the cheapest price possible for a flight from Phoenix Sky Harbor Intl Airport to Sofia, you should look to book at least 56 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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 $632). Flying from Phoenix Sky Harbor Intl Airport to Sofia in June is currently the most expensive (average of $1,183). 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 Sky Harbor Intl 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 September 17, 2025.

It’s typically best to fly out from Phoenix Sky Harbor Intl Airport 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 Sky Harbor Intl Airport to Sofia?

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

Travelers seeking maximum savings on their Phoenix Sky Harbor Intl Airport 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 September 17, 2025.
Read reviews from past customers who have flown Austrian Airlines, United Airlines, and American Airlines 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.
Austrian Airlines
7.6
Good
850 reviews

Overall

7.6

Boarding

7.6

Crew

8.1

Comfort

7.3

Food

6.8

Entertainment

6.8

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
850 reviews
Austrian Airlines
7.6
Good
850 reviews

Overall

7.6

Boarding

7.6

Crew

8.1

Comfort

7.3

Food

6.8

Entertainment

6.8

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
8,926 reviews
Austrian Airlines
7.6
Good
850 reviews

Overall

7.6

Boarding

7.6

Crew

8.1

Comfort

7.3

Food

6.8

Entertainment

6.8

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
10,000 reviews
Austrian Airlines
7.6
Good
850 reviews

Overall

7.6

Boarding

7.6

Crew

8.1

Comfort

7.3

Food

6.8

Entertainment

6.8

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
7,409 reviews
Austrian Airlines
7.6
Good
850 reviews

Overall

7.6

Boarding

7.6

Crew

8.1

Comfort

7.3

Food

6.8

Entertainment

6.8

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
7,367 reviews
Austrian Airlines
7.6
Good
850 reviews

Overall

7.6

Boarding

7.6

Crew

8.1

Comfort

7.3

Food

6.8

Entertainment

6.8

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 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. 7 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 $610, British Airways can have you in Sofia from Phoenix Sky Harbor Intl Airport in 24h 20m. 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 Austrian Airlines is currently your cheapest option to Sofia, with prices starting at $571. Additional round-trip tickets that might be worth considering are offered by American Airlines and United Airlines, with the lowest prices starting at $621 and $629, respectively. You may be able to fly from Phoenix Sky Harbor Intl Airport to Sofia for 36% 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 $632). Flying from Phoenix Sky Harbor Intl Airport to Sofia in June is currently the most expensive (average of $1,183). 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

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Top 7 airlines flying from Sky Harbor Intl to Sofia

Discover the top 7 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 September 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
Austrian AirlinesCheapest$571Average$1,019FlexibilityNo cancel feeOn-time78%
American AirlinesCheapest$621Average$1,157FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$629Average$951FlexibilityNo cancel feeOn-time69%
LufthansaCheapest$662Average$1,027FlexibilityNo cancel feeOn-time76%
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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