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 58% of people opting to fly with this airline when traveling to Sofia. Keep in mind that there are 4 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?

United Airlines is the most popular carrier 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 June 2026, there are 4 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.

$406 Cheap Flights from Phoenix Sky Harbor Intl Airport to Sofia in 2026

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

Prices are currently typical for flights on this route. Typical prices usually range from $689 to $872. The lowest price recently found on this route was $810.

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.

4:25 pm - 11:15 pm

PHX

SOF

20h 50m

2 stops

6:20 am - 10:59 pm

SOF

PHX

26h 39m

2 stops

$810United Airlines

Wed, Jul 29 - Wed, Aug 26

9:08 am - 6:40 pm

PHX

SOF

23h 32m

2 stops

6:20 am - 8:37 pm

SOF

PHX

24h 17m

2 stops

$829Lufthansa

Wed, Jul 29 - Wed, Sep 2

7:55 am - 6:40 pm

PHX

SOF

24h 45m

2 stops

6:20 am - 11:53 am

SOF

PHX

39h 33m

2 stops

$830Air Canada

Sun, Sep 6 - Wed, Oct 14

4:49 pm - 11:15 pm

PHX

SOF

20h 26m

2 stops

6:20 am - 8:49 pm

SOF

PHX

24h 29m

3 stops

$841United Airlines

Sun, Sep 6 - Wed, Oct 14

2:19 pm - 11:15 pm

PHX

SOF

22h 56m

2 stops

7:25 pm - 8:24 pm

SOF

PHX

34h 59m

2 stops

$850Lufthansa

Sun, Aug 16 - Mon, Aug 31

9:08 am - 11:15 pm

PHX

SOF

28h 07m

2 stops

6:10 am - 10:37 am

SOF

PHX

38h 27m

2 stops

$892United Airlines

Sun, Aug 2 - Mon, Aug 17

2:16 pm - 7:20 pm

PHX

SOF

19h 04m

2 stops

9:25 pm - 7:05 pm

SOF

PHX

31h 40m

1 stop

$893British Airways

Sun, Sep 6 - Wed, Oct 14

9:05 pm - 1:25 pm

PHX

SOF

30h 20m

1 stop

9:25 pm - 7:05 pm

SOF

PHX

31h 40m

1 stop

$894British Airways

Wed, Sep 9 - Wed, Oct 14

9:19 am - 2:00 pm

PHX

SOF

18h 41m

2 stops

7:00 am - 4:41 pm

SOF

PHX

19h 41m

2 stops

$895Multiple Airlines

Mon, Jul 27 - Wed, Aug 5

10:06 am - 6:40 pm

PHX

SOF

22h 34m

2 stops

7:25 pm - 10:48 pm

SOF

PHX

37h 23m

2 stops

$897Lufthansa

Mon, Jul 27 - Wed, Aug 5

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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

Jul 29

PHX9:08 amPhoenix Sky Harbor Intl

23h 32m

2 stops

SOF6:40 pmSofia

Sep 2

SOF6:20 amSofia

24h 17m

2 stops

PHX8:37 pmPhoenix Sky Harbor Intl

$829

Lufthansa

Aug 16

PHX2:19 pmPhoenix Sky Harbor Intl

22h 56m

2 stops

SOF11:15 pmSofia

Aug 31

SOF7:25 pmSofia

34h 59m

2 stops

PHX8:24 pmPhoenix Sky Harbor Intl

$850

Lufthansa

Jul 27

PHX10:06 amPhoenix Sky Harbor Intl

22h 34m

2 stops

SOF6:40 pmSofia

Aug 5

SOF7:25 pmSofia

37h 23m

2 stops

PHX10:48 pmPhoenix Sky Harbor Intl

$897

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

Jul 29

PHX4:25 pmPhoenix Sky Harbor Intl

20h 50m

2 stops

SOF11:15 pmSofia

Aug 26

SOF6:20 amSofia

26h 39m

2 stops

PHX10:59 pmPhoenix Sky Harbor Intl

$810

United Airlines

Sep 6

PHX4:49 pmPhoenix Sky Harbor Intl

20h 26m

2 stops

SOF11:15 pmSofia

Oct 14

SOF6:20 amSofia

24h 29m

3 stops

PHX8:49 pmPhoenix Sky Harbor Intl

$841

United Airlines

Aug 2

PHX9:08 amPhoenix Sky Harbor Intl

28h 07m

2 stops

SOF11:15 pmSofia

Aug 17

SOF6:10 amSofia

38h 27m

2 stops

PHX10:37 amPhoenix Sky Harbor Intl

$892

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 - SOF

PHXSOF

Phoenix Sky Harbor Intl

Wed 7/29

4:25 pm-11:15 pm

2 stops20h 50m

Sofia

Wed 8/26

6:20 am-10:59 pm

2 stops26h 39m

$810

PhoenixSofia

PHX - SOF

PHXSOF

Phoenix Sky Harbor Intl

Wed 7/29

9:08 am-6:40 pm

2 stops23h 32m

Sofia

Wed 9/2

6:20 am-8:37 pm

2 stops24h 17m

$829

PhoenixSofia

PHX - SOF

PHXSOF

Phoenix Sky Harbor Intl

Sun 9/6

7:55 am-6:40 pm

2 stops24h 45m

Sofia

Wed 10/14

6:20 am-11:53 am

2 stops39h 33m

$830

PhoenixSofia

PHX - SOF

PHXSOF

Phoenix Sky Harbor Intl

Sun 9/6

4:49 pm-11:15 pm

2 stops20h 26m

Sofia

Wed 10/14

6:20 am-8:49 pm

3 stops24h 29m

$841

PhoenixSofia

PHX - SOF

PHXSOF

Phoenix Sky Harbor Intl

Sun 8/16

2:19 pm-11:15 pm

2 stops22h 56m

Sofia

Mon 8/31

7:25 pm-8:24 pm

2 stops34h 59m

$850

PhoenixSofia

PHX - SOF

PHXSOF

Phoenix Sky Harbor Intl

Sun 8/2

9:08 am-11:15 pm

2 stops28h 07m

Sofia

Mon 8/17

6:10 am-10:37 am

2 stops38h 27m

$892

PhoenixSofia

PHX - SOF

PHXSOF

Phoenix Sky Harbor Intl

Sun 9/6

2:16 pm-7:20 pm

2 stops19h 04m

Sofia

Wed 10/14

9:25 pm-7:05 pm

1 stop31h 40m

$893

PhoenixSofia

PHX - SOF

PHXSOF

Phoenix Sky Harbor Intl

Wed 9/9

9:05 pm-1:25 pm

1 stop30h 20m

Sofia

Wed 10/14

9:25 pm-7:05 pm

1 stop31h 40m

$894

Quickest round-trip

PhoenixSofia

PHX - SOF

PHXSOF

Phoenix Sky Harbor Intl

Mon 7/27

9:19 am-2:00 pm

2 stops18h 41m

Sofia

Wed 8/5

7:00 am-4:41 pm

2 stops19h 41m

$895

PhoenixSofia

PHX - SOF

PHXSOF

Phoenix Sky Harbor Intl

Mon 7/27

10:06 am-6:40 pm

2 stops22h 34m

Sofia

Wed 8/5

7:25 pm-10:48 pm

2 stops37h 23m

$897

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 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?

What is the cheapest month to fly to Sofia?

The cheapest month to fly to Sofia from Phoenix Sky Harbor Intl Airport is in November. Flight prices, which tend to average around $568, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of November, then book flights to Sofia from Phoenix Sky Harbor Intl Airport during April instead. Flights to Sofia in April, while not as cheap as those in November, still average around $623.

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

You could potentially save up to 19% 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

Fastest flight time	22h 34m
Direct flights	None

The fastest flight from Phoenix Sky Harbor Intl Airport to Sofia takes 22h 34m

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 22h 34m.
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 June 2026, there are 4 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 58% of the total bookings. Other popular airlines include Lufthansa with 26%, British Airways with 10%, and Austrian Airlines with 5%.

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
Austrian Airlines	PriceFrom $571	Free Cancellation	Rating 7.6 937 reviews	Search Austrian Airlines flights
United Airlines	PriceFrom $575	Free Cancellation	Rating 7.4 9,898 reviews	Search United Airlines flights
Lufthansa	PriceFrom $585	Free Cancellation	Rating 6.8 8,102 reviews	Search Lufthansa flights
British Airways	PriceFrom $639	Free Cancellation	Rating 6.7 8,074 reviews	Search British Airways flights

Bansko

Borovets

Velingrad

Sandanski

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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.

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Cheap flights from Phoenix Sky Harbor Intl Airport to Sofia from $406

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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

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

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

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

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.

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

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