What airlines fly to Sofia?

United Airlines, Lufthansa and British Airways are the top three most popular airlines that fly to Sofia from Phoenix Sky Harbor Intl Airport according to our data. United Airlines is the first choice among our users, with 59% of people opting to fly with this airline when traveling to Sofia. Keep in mind that there are 3 different airlines that fly to Sofia on a routine basis, so you have a few additional options to choose from.

What is the cheapest airline that flies from Phoenix Sky Harbor Intl to Sofia?

British Airways and Air Canada are the most popular carriers operating from Phoenix Sky Harbor Intl to Sofia

When did momondo last update prices for flights from Phoenix Sky Harbor Intl Airport to Sofia Airport?

Prices for flights from Phoenix Sky Harbor Intl Airport to Sofia Airport are updated daily.

How many operators does momondo search for flights from Phoenix Sky Harbor Intl Airport to Sofia Airport?

As of September 2026, there are 3 operators available to choose from for flights from Phoenix Sky Harbor Intl Airport to Sofia Airport.

How old do you have to be to fly from Phoenix Sky Harbor Intl Airport to Sofia Airport?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Phoenix Sky Harbor Intl Airport to Sofia Airport.

What documentation or ID do you need to fly to Sofia Airport?

The required travel and health documents for your Sofia Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Sofia Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$341 Cheap Flights from Phoenix Sky Harbor Intl Airport to Sofia in 2026

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Phoenix Sky Harbor Intl Airport to Sofia

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

7:37 pm - 10:55 pmPHX Phoenix Sky Harbor Intl-SOF Sofia

18h 18m2 stops San Francisco Munich Franz Josef Strauss

7:55 am - 7:16 pmSOF Sofia-PHX Phoenix Sky Harbor Intl

20h 21m2 stops Vienna Intl Chicago O'Hare Intl

$661Multiple Airlines

Fri, Oct 30 - Fri, Nov 6

9:00 am - 12:10 pmPHX Phoenix Sky Harbor Intl-SOF Sofia

17h 10m2 stops Chicago O'Hare Intl Munich Franz Josef Strauss

7:55 am - 7:16 pmSOF Sofia-PHX Phoenix Sky Harbor Intl

20h 21m2 stops Vienna Intl Chicago O'Hare Intl

$666United Airlines

Fri, Oct 23 - Fri, Nov 6

7:00 am - 10:55 pmPHX Phoenix Sky Harbor Intl-SOF Sofia

30h 55m2 stops San Francisco Munich Franz Josef Strauss

6:00 am - 8:13 pmSOF Sofia-PHX Phoenix Sky Harbor Intl

23h 13m2 stops Munich Franz Josef Strauss Denver Intl

$677United Airlines

Sun, Oct 25 - Sun, Nov 1

9:10 pm - 7:35 pmPHX Phoenix Sky Harbor Intl-SOF Sofia

36h 25m1 stop London Heathrow

8:30 pm - 6:35 pmSOF Sofia-PHX Phoenix Sky Harbor Intl

31h 05m1 stop London Heathrow

$690British Airways

Fri, Oct 23 - Fri, Nov 6

7:37 pm - 10:55 pmPHX Phoenix Sky Harbor Intl-SOF Sofia

18h 18m2 stops San Francisco Munich Franz Josef Strauss

7:55 am - 9:37 pmSOF Sofia-PHX Phoenix Sky Harbor Intl

22h 42m3 stops Vienna Intl Newark Denver Intl

$732United Airlines

Fri, Oct 30 - Fri, Nov 6

5:30 am - 4:20 pmPHX Phoenix Sky Harbor Intl-SOF Sofia

25h 50m2 stops Chicago O'Hare Intl London Heathrow

7:45 pm - 6:35 pmSOF Sofia-PHX Phoenix Sky Harbor Intl

31h 50m1 stop London Heathrow

$752British Airways

Sun, Oct 25 - Sun, Nov 1

1:20 pm - 11:55 pmPHX Phoenix Sky Harbor Intl-SOF Sofia

49h 35m2 stops Toronto Pearson Intl Vienna Intl

6:25 am - 9:38 pmSOF Sofia-PHX Phoenix Sky Harbor Intl

24h 13m2 stops Frankfurt am Main Montreal Pierre Elliott Trudeau Intl

$794Multiple Airlines

Wed, Dec 23 - Wed, Jan 13

12:50 pm - 6:40 pmPHX Phoenix Sky Harbor Intl-SOF Sofia

19h 50m2 stops Vancouver Intl Munich Franz Josef Strauss

6:00 am - 11:07 pmSOF Sofia-PHX Phoenix Sky Harbor Intl

26h 07m2 stops Munich Franz Josef Strauss Chicago O'Hare Intl

$839Multiple Airlines

Wed, Oct 21 - Wed, Oct 28

7:55 am - 10:55 pmPHX Phoenix Sky Harbor Intl-SOF Sofia

30h 00m2 stops Chicago O'Hare Intl Munich Franz Josef Strauss

6:25 am - 7:55 pmSOF Sofia-PHX Phoenix Sky Harbor Intl

22h 30m2 stops Frankfurt am Main Denver Intl

$847Lufthansa

Fri, Oct 30 - Fri, Nov 6

4:22 pm - 6:20 pmPHX Phoenix Sky Harbor Intl-SOF Sofia

16h 58m2 stops Chicago O'Hare Intl Munich Franz Josef Strauss

6:25 am - 7:55 pmSOF Sofia-PHX Phoenix Sky Harbor Intl

22h 30m2 stops Frankfurt am Main Denver Intl

$847Lufthansa

Fri, Oct 30 - Fri, Nov 6

Cheap last minute flights

Enter your travel dates to find the best prices.

10:26 am - 6:40 pmPHX Phoenix Sky Harbor Intl-SOF Sofia

22h 14m2 stops Los Angeles Munich Franz Josef Strauss

6:10 am - 11:53 amSOF Sofia-PHX Phoenix Sky Harbor Intl

39h 43m2 stops Frankfurt am Main Vancouver Intl

$930Multiple Airlines

Mon, Sep 14 - Tue, Sep 22

6:00 am - 6:40 pmPHX Phoenix Sky Harbor Intl-SOF Sofia

26h 40m2 stops Newark Munich Franz Josef Strauss

6:10 am - 7:54 pmSOF Sofia-PHX Phoenix Sky Harbor Intl

23h 44m2 stops Frankfurt am Main Washington, D.C. Dulles Intl

$934Lufthansa

Mon, Sep 14 - Tue, Sep 22

6:15 am - 6:10 pmPHX Phoenix Sky Harbor Intl-SOF Sofia

25h 55m2 stops Newark Frankfurt am Main

6:10 am - 11:53 amSOF Sofia-PHX Phoenix Sky Harbor Intl

39h 43m2 stops Frankfurt am Main Vancouver Intl

$942Multiple Airlines

Sun, Sep 13 - Tue, Sep 22

7:55 am - 6:00 pmPHX Phoenix Sky Harbor Intl-SOF Sofia

24h 05m2 stops Montreal Pierre Elliott Trudeau Intl Frankfurt am Main

6:10 am - 5:53 pmSOF Sofia-PHX Phoenix Sky Harbor Intl

21h 43m2 stops Frankfurt am Main Chicago O'Hare Intl

$945Lufthansa

Mon, Sep 14 - Tue, Sep 22

6:15 am - 6:05 pmPHX Phoenix Sky Harbor Intl-SOF Sofia

25h 50m2 stops Newark Frankfurt am Main

6:10 am - 9:37 pmSOF Sofia-PHX Phoenix Sky Harbor Intl

25h 27m2 stops Frankfurt am Main Chicago O'Hare Intl

$982Lufthansa

Wed, Sep 16 - Tue, Sep 22

7:02 am - 6:40 pmPHX Phoenix Sky Harbor Intl-SOF Sofia

25h 38m2 stops San Francisco Munich Franz Josef Strauss

6:10 am - 5:49 pmSOF Sofia-PHX Phoenix Sky Harbor Intl

21h 39m2 stops Frankfurt am Main Los Angeles

$985United Airlines

Wed, Sep 16 - Tue, Sep 22

11:28 am - 10:50 pmPHX Phoenix Sky Harbor Intl-SOF Sofia

25h 22m2 stops Chicago O'Hare Intl Frankfurt am Main

6:20 am - 5:55 pmSOF Sofia-PHX Phoenix Sky Harbor Intl

21h 35m2 stops Frankfurt am Main Chicago O'Hare Intl

$998United Airlines

Wed, Sep 16 - Wed, Sep 23

9:50 am - 10:40 pmPHX Phoenix Sky Harbor Intl-SOF Sofia

26h 50m2 stops Newark Frankfurt am Main

6:10 am - 5:53 pmSOF Sofia-PHX Phoenix Sky Harbor Intl

21h 43m2 stops Frankfurt am Main Chicago O'Hare Intl

$1,058United Airlines

Thu, Sep 17 - Tue, Sep 22

9:05 pm - 11:15 pmPHX Phoenix Sky Harbor Intl-SOF Sofia

16h 10m1 stop London Heathrow

7:00 am - 7:35 pmSOF Sofia-PHX Phoenix Sky Harbor Intl

22h 35m2 stops Rome Fiumicino New York John F Kennedy Intl

$1,272Multiple Airlines

Sun, Sep 13 - Tue, Sep 22

4:10 pm - 8:10 pmPHX Phoenix Sky Harbor Intl-SOF Sofia

18h 00m1 stop London Heathrow

8:10 pm - 1:05 pmSOF Sofia-PHX Phoenix Sky Harbor Intl

26h 55m1 stop London Heathrow

$2,771British Airways

Sat, Sep 12 - Mon, Sep 14

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Lufthansa flights from Phoenix Sky Harbor Intl Airport to Sofia

Our best Lufthansa deals on Phoenix Sky Harbor Intl Airport to Sofia flight tickets

Lufthansa

Oct 30

PHX7:55 amPhoenix Sky Harbor Intl

30h 00m

2 stops

SOF10:55 pmSofia

Nov 6

SOF6:25 amSofia

22h 30m

2 stops

PHX7:55 pmPhoenix Sky Harbor Intl

$847

Lufthansa

Oct 23

PHX7:55 amPhoenix Sky Harbor Intl

24h 45m

2 stops

SOF6:40 pmSofia

Oct 30

SOF6:00 amSofia

23h 25m

2 stops

PHX8:25 pmPhoenix Sky Harbor Intl

$892

Lufthansa

Sep 14

PHX6:00 amPhoenix Sky Harbor Intl

26h 40m

2 stops

SOF6:40 pmSofia

Sep 22

SOF6:10 amSofia

23h 44m

2 stops

PHX7:54 pmPhoenix Sky Harbor Intl

$934

United Airlines flights from Phoenix Sky Harbor Intl Airport to Sofia

Our best United Airlines deals on Phoenix Sky Harbor Intl Airport to Sofia flight tickets

United Airlines

Oct 23

PHX9:00 amPhoenix Sky Harbor Intl

17h 10m

2 stops

SOF12:10 pmSofia

Nov 6

SOF7:55 amSofia

20h 21m

2 stops

PHX7:16 pmPhoenix Sky Harbor Intl

$666

United Airlines

Oct 25

PHX7:00 amPhoenix Sky Harbor Intl

30h 55m

2 stops

SOF10:55 pmSofia

Nov 1

SOF6:00 amSofia

23h 13m

2 stops

PHX8:13 pmPhoenix Sky Harbor Intl

$677

United Airlines

Oct 30

PHX7:37 pmPhoenix Sky Harbor Intl

18h 18m

2 stops

SOF10:55 pmSofia

Nov 6

SOF7:55 amSofia

22h 42m

3 stops

PHX9:37 pmPhoenix Sky Harbor Intl

$732

momondo Fare Finder

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 Phoenix Sky Harbor Intl - SOF Sofia

PHXSOF

Phoenix Sky Harbor Intl

Fri 10/30

7:37 pm-10:55 pm

2 stops18h 18m

Sofia

Fri 11/6

7:55 am-7:16 pm

2 stops20h 21m

$661

Quickest round-trip

PhoenixSofia

PHX Phoenix Sky Harbor Intl - SOF Sofia

PHXSOF

Phoenix Sky Harbor Intl

Fri 10/23

9:00 am-12:10 pm

2 stops17h 10m

Sofia

Fri 11/6

7:55 am-7:16 pm

2 stops20h 21m

$666

PhoenixSofia

PHX Phoenix Sky Harbor Intl - SOF Sofia

PHXSOF

Phoenix Sky Harbor Intl

Sun 10/25

7:00 am-10:55 pm

2 stops30h 55m

Sofia

Sun 11/1

6:00 am-8:13 pm

2 stops23h 13m

$677

PhoenixSofia

PHX Phoenix Sky Harbor Intl - SOF Sofia

PHXSOF

Phoenix Sky Harbor Intl

Fri 10/23

9:10 pm-7:35 pm

1 stop36h 25m

Sofia

Fri 11/6

8:30 pm-6:35 pm

1 stop31h 05m

$690

PhoenixSofia

PHX Phoenix Sky Harbor Intl - SOF Sofia

PHXSOF

Phoenix Sky Harbor Intl

Fri 10/30

7:37 pm-10:55 pm

2 stops18h 18m

Sofia

Fri 11/6

7:55 am-9:37 pm

3 stops22h 42m

$732

PhoenixSofia

PHX Phoenix Sky Harbor Intl - SOF Sofia

PHXSOF

Phoenix Sky Harbor Intl

Sun 10/25

5:30 am-4:20 pm

2 stops25h 50m

Sofia

Sun 11/1

7:45 pm-6:35 pm

1 stop31h 50m

$752

PhoenixSofia

PHX Phoenix Sky Harbor Intl - SOF Sofia

PHXSOF

Phoenix Sky Harbor Intl

Wed 12/23

1:20 pm-11:55 pm

2 stops49h 35m

Sofia

Wed 1/13

6:25 am-9:38 pm

2 stops24h 13m

$794

PhoenixSofia

PHX Phoenix Sky Harbor Intl - SOF Sofia

PHXSOF

Phoenix Sky Harbor Intl

Wed 10/21

12:50 pm-6:40 pm

2 stops19h 50m

Sofia

Wed 10/28

6:00 am-11:07 pm

2 stops26h 07m

$839

PhoenixSofia

PHX Phoenix Sky Harbor Intl - SOF Sofia

PHXSOF

Phoenix Sky Harbor Intl

Fri 10/30

7:55 am-10:55 pm

2 stops30h 00m

Sofia

Fri 11/6

6:25 am-7:55 pm

2 stops22h 30m

$847

PhoenixSofia

PHX Phoenix Sky Harbor Intl - SOF Sofia

PHXSOF

Phoenix Sky Harbor Intl

Fri 10/30

4:22 pm-6:20 pm

2 stops16h 58m

Sofia

Fri 11/6

6:25 am-7:55 pm

2 stops22h 30m

$847

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 16 resultsSorted by cheapest first

How to get the cheapest flight ticket from Phoenix Sky Harbor Intl Airport to Sofia

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

What is the typical price of a round-trip flight between Phoenix Sky Harbor Intl Airport and Sofia?

Prices are currently low for flights on this route.

Typical prices usually range from $1,093 to $1,161.
The lowest price recently found on this route was $661.

What is the cheapest month to fly to Sofia?

The cheapest month to fly to Sofia from Phoenix Sky Harbor Intl Airport is in March. Flight prices, which tend to average around $567, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of March, then book flights to Sofia from Phoenix Sky Harbor Intl Airport during November instead. Flights to Sofia in November, while not as cheap as those in March, still average around $568.

Can stopping save me money on Phoenix Sky Harbor Intl Airport to Sofia flights?

You could potentially save up to 29% on your flight if you consider stops on a Phoenix Sky Harbor Intl Airport to Sofia flight.

When to book flights from Phoenix Sky Harbor Intl Airport to Sofia

Are you open to changing your travel dates? Check out the ideal times to fly from Phoenix Sky Harbor Intl Airport to Sofia according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Phoenix Sky Harbor Intl Airport to Sofia (PHX to SOF) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Phoenix Sky Harbor Intl Airport to Sofia

Best Price Found	$341
Fastest flight time	17h 10m
Direct flights	None

The best one-way flight to Sofia from Phoenix Sky Harbor Intl Airport in the past 72 hours is $341. The best round-trip flight deal from Phoenix Sky Harbor Intl Airport to Sofia found on momondo in the last 72 hours is $661.

The fastest flight from Phoenix Sky Harbor Intl Airport to Sofia takes 17h 10m

There are no direct flights from Phoenix Sky Harbor Intl Airport to Sofia. There are no popular flight routes from Phoenix Sky Harbor Intl Airport to Sofia.

Search flight deals

Frequently asked questions about flying from Phoenix Sky Harbor Intl Airport to Sofia

How far is Phoenix Sky Harbor Intl to Sofia by plane?
The straight-line distance from Phoenix Sky Harbor Intl to Sofia is 6461.3 mi. By plane, this route typically takes 17h 10m.
When did momondo last update prices for flights from Phoenix Sky Harbor Intl Airport to Sofia Airport?
Prices for flights from Phoenix Sky Harbor Intl Airport to Sofia Airport are updated daily.
How many operators does momondo search for flights from Phoenix Sky Harbor Intl Airport to Sofia Airport?
As of September 2026, there are 3 operators available to choose from for flights from Phoenix Sky Harbor Intl Airport to Sofia Airport.
How old do you have to be to fly from Phoenix Sky Harbor Intl Airport to Sofia Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Phoenix Sky Harbor Intl Airport to Sofia Airport.
What documentation or ID do you need to fly to Sofia Airport?
The required travel and health documents for your Sofia Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Sofia Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular airline from Phoenix Sky Harbor Intl Airport to Sofia?
Based on momondo bookings for flights between Phoenix Sky Harbor Intl Airport and Sofia, the leading airline is United Airlines, making up 59% of the total bookings. Other popular airlines include Lufthansa with 28% and British Airways with 13%.

Best airlines flying from Phoenix Sky Harbor Intl Airport to Sofia

Compare and see reviews for airlines that fly from Phoenix Sky Harbor Intl Airport to Sofia with momondo

Airline	Rating	Free Cancellation	Price
United Airlines	PriceFrom $607	Free Cancellation	Rating 7.4 10,200 reviews	Search United Airlines flights
Lufthansa	PriceFrom $617	Free Cancellation	Rating 6.8 8,214 reviews	Search Lufthansa flights
British Airways	PriceFrom $639	Free Cancellation	Rating 6.7 8,211 reviews	Search British Airways flights

Bansko

Borovets

Velingrad

Sandanski

Why use momondo?

Why should I use momondo to find a flight deal from Phoenix to Sofia?

It is quick and easy to find Phoenix to Sofia flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Sofia that suits you.

Can I find flights from Phoenix to Sofia with flexible booking policies on momondo?

All flight searches from Phoenix to Sofia on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Phoenix to Sofia?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Phoenix to Sofia.

I’m not ready to book a flight from Phoenix to Sofia right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Sofia, momondo offers a useful price alert feature which will track prices for flights to Sofia from Phoenix and alert you when they change.

An easier way to manage your Sofia trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

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Cheap flights from Phoenix Sky Harbor Intl Airport to Sofia from $341

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Lufthansa flights from Phoenix Sky Harbor Intl Airport to Sofia

Our best Lufthansa deals on Phoenix Sky Harbor Intl Airport to Sofia flight tickets

United Airlines flights from Phoenix Sky Harbor Intl Airport to Sofia

Our best United Airlines deals on Phoenix Sky Harbor Intl Airport to Sofia flight tickets

momondo Fare Finder

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See travel insights to Sofia from

How to get the cheapest flight ticket from Phoenix Sky Harbor Intl Airport to Sofia

What is the typical price of a round-trip flight between Phoenix Sky Harbor Intl Airport and Sofia?

What is the cheapest month to fly to Sofia?

Can stopping save me money on Phoenix Sky Harbor Intl Airport to Sofia flights?

What is the cheapest airline that flies from Phoenix Sky Harbor Intl to Sofia?

What airlines fly to Sofia?

When to book flights from Phoenix Sky Harbor Intl Airport to Sofia

Cheap Phoenix Sky Harbor Intl Airport to Sofia (PHX to SOF) flight deals and tips

Best Price Found

Fastest flight time

Direct flights

Frequently asked questions about flying from Phoenix Sky Harbor Intl Airport to Sofia

Best airlines flying from Phoenix Sky Harbor Intl Airport to Sofia

Compare and see reviews for airlines that fly from Phoenix Sky Harbor Intl Airport to Sofia with momondo

Traveling to a place near Sofia?

Why use momondo?

An easier way to manage your Sofia trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Bulgaria

Fly your favorite airline to Sofia

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Cabin classes currently available on flights to Sofia

List of cabin classes available on flights landing in Sofia. Availability may vary depending on flight origin and airline.

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