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Cheap flights from Phoenix Sky Harbor Intl Airport to Sofia from $478

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Phoenix Sky Harbor Intl Airport to Sofia departing on 6/3. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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

Cheap round-trip flights

Enter your travel dates to find the best prices.
Lufthansa Logo
10:26 am - 6:40 pm
PHX
-
SOF
22h 14m
2 stops
Lufthansa Logo
6:10 am - 5:55 pm
SOF
-
PHX
20h 45m
2 stops
$772Lufthansa
Wed, Oct 21 - Tue, Oct 27
United Airlines Logo
10:26 am - 6:40 pm
PHX
-
SOF
22h 14m
2 stops
United Airlines Logo
6:10 am - 12:04 am
SOF
-
PHX
26h 54m
3 stops
$784United Airlines
Wed, Oct 21 - Tue, Oct 27
United Airlines Logo
9:45 am - 6:05 pm
PHX
-
SOF
22h 20m
3 stops
United Airlines Logo
6:20 am - 8:43 pm
SOF
-
PHX
24h 23m
3 stops
$796United Airlines
Wed, Sep 9 - Wed, Oct 14
British Airways Logo
9:05 pm - 1:25 pm
PHX
-
SOF
30h 20m
1 stop
British Airways Logo
9:25 pm - 11:26 pm
SOF
-
PHX
36h 01m
2 stops
$828British Airways
Wed, Sep 9 - Wed, Oct 14
British Airways Logo
9:50 pm - 8:30 pm
PHX
-
SOF
36h 40m
2 stops
British Airways Logo
8:10 pm - 6:17 pm
SOF
-
PHX
56h 07m
2 stops
$840British Airways
Mon, Jul 27 - Mon, Aug 24
British Airways Logo
9:05 pm - 1:25 pm
PHX
-
SOF
30h 20m
1 stop
British Airways Logo
9:25 pm - 7:05 pm
SOF
-
PHX
31h 40m
1 stop
$841British Airways
Wed, Sep 9 - Wed, Oct 14
Multiple Airlines Logo
9:08 am - 11:15 pm
PHX
-
SOF
28h 07m
2 stops
Multiple Airlines Logo
6:55 pm - 7:23 pm
SOF
-
PHX
34h 28m
2 stops
$846Multiple Airlines
Wed, Aug 5 - Wed, Aug 26
British Airways Logo
9:05 pm - 1:25 pm
PHX
-
SOF
30h 20m
1 stop
British Airways Logo
9:25 pm - 7:00 pm
SOF
-
PHX
31h 35m
1 stop
$854British Airways
Wed, Aug 5 - Wed, Aug 26
United Airlines Logo
10:06 am - 11:15 pm
PHX
-
SOF
27h 09m
3 stops
United Airlines Logo
6:10 am - 7:23 pm
SOF
-
PHX
23h 13m
2 stops
$864United Airlines
Mon, Jul 27 - Mon, Aug 24
SWISS Logo
1:16 pm - 10:20 am
PHX
-
SOF
35h 04m
2 stops
SWISS Logo
3:40 pm - 6:05 pm
SOF
-
PHX
36h 25m
2 stops
$877SWISS
Mon, Jul 20 - Mon, Sep 21

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 21
PHX10:26 amPhoenix Sky Harbor Intl
22h 14m
2 stops
SOF6:40 pmSofia
Oct 27
SOF6:10 amSofia
26h 54m
3 stops
PHX12:04 amPhoenix Sky Harbor Intl
$784
United Airlines
Sep 9
PHX9:45 amPhoenix Sky Harbor Intl
22h 20m
3 stops
SOF6:05 pmSofia
Oct 14
SOF6:20 amSofia
24h 23m
3 stops
PHX8:43 pmPhoenix Sky Harbor Intl
$796
United Airlines
Jul 27
PHX10:06 amPhoenix Sky Harbor Intl
27h 09m
3 stops
SOF11:15 pmSofia
Aug 24
SOF6:10 amSofia
23h 13m
2 stops
PHX7:23 pmPhoenix Sky Harbor Intl
$864

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
Aug 26
PHX9:00 amPhoenix Sky Harbor Intl
28h 15m
2 stops
SOF11:15 pmSofia
Oct 6
SOF6:10 amSofia
21h 41m
2 stops
PHX5:51 pmPhoenix Sky Harbor Intl
$771
Lufthansa
Oct 21
PHX10:26 amPhoenix Sky Harbor Intl
22h 14m
2 stops
SOF6:40 pmSofia
Oct 27
SOF6:10 amSofia
20h 45m
2 stops
PHX5:55 pmPhoenix Sky Harbor Intl
$772
Lufthansa
May 14
PHX12:00 pmPhoenix Sky Harbor Intl
20h 40m
2 stops
SOF6:40 pmSofia
Jun 10
SOF6:20 amSofia
26h 07m
2 stops
PHX10:27 pmPhoenix Sky Harbor Intl
$1,027

momondo Fare Finder

 
Customize your flight search to find flights from Phoenix Sky Harbor Intl Airport 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, momondo users made 832,500 searches. Data last updated May 12, 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
Quickest round-trip

PhoenixSofia

PHX - SOF

PHXSOF

Phoenix Sky Harbor Intl

Wed 10/21

10:26 am-6:40 pm

2 stops22h 14m

Sofia

Tue 10/27

6:10 am-5:55 pm

2 stops20h 45m

$772

PhoenixSofia

PHX - SOF

PHXSOF

Phoenix Sky Harbor Intl

Wed 10/21

10:26 am-6:40 pm

2 stops22h 14m

Sofia

Tue 10/27

6:10 am-12:04 am

3 stops26h 54m

$784

PhoenixSofia

PHX - SOF

PHXSOF

Phoenix Sky Harbor Intl

Wed 9/9

9:45 am-6:05 pm

3 stops22h 20m

Sofia

Wed 10/14

6:20 am-8:43 pm

3 stops24h 23m

$796

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-11:26 pm

2 stops36h 01m

$828

PhoenixSofia

PHX - SOF

PHXSOF

Phoenix Sky Harbor Intl

Mon 7/27

9:50 pm-8:30 pm

2 stops36h 40m

Sofia

Mon 8/24

8:10 pm-6:17 pm

2 stops56h 07m

$840

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

$841

PhoenixSofia

PHX - SOF

PHXSOF

Phoenix Sky Harbor Intl

Wed 8/5

9:08 am-11:15 pm

2 stops28h 07m

Sofia

Wed 8/26

6:55 pm-7:23 pm

2 stops34h 28m

$846

PhoenixSofia

PHX - SOF

PHXSOF

Phoenix Sky Harbor Intl

Wed 8/5

9:05 pm-1:25 pm

1 stop30h 20m

Sofia

Wed 8/26

9:25 pm-7:00 pm

1 stop31h 35m

$854

PhoenixSofia

PHX - SOF

PHXSOF

Phoenix Sky Harbor Intl

Mon 7/27

10:06 am-11:15 pm

3 stops27h 09m

Sofia

Mon 8/24

6:10 am-7:23 pm

2 stops23h 13m

$864

PhoenixSofia

PHX - SOF

PHXSOF

Phoenix Sky Harbor Intl

Mon 7/20

1:16 pm-10:20 am

2 stops35h 04m

Sofia

Mon 9/21

3:40 pm-6:05 pm

2 stops36h 25m

$877

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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

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

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 $622.

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

You are more likely to see cheaper flights to Sofia from Phoenix Sky Harbor Intl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Sofia for around $793 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Sofia from Phoenix Sky Harbor Intl Airport for as low as $629 on momondo.

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

You could potentially save up to 6% 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

18h 40m

Direct flights

None
The fastest flight from Phoenix Sky Harbor Intl Airport to Sofia takes 18h 40m
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 18h 40m.

  • 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?

  • 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?

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 AirlinesPriceFrom $571Free CancellationRating
7.6
915 reviews
Search Austrian Airlines flights
LufthansaPriceFrom $585Free CancellationRating
6.8
7,993 reviews
Search Lufthansa flights
United AirlinesPriceFrom $607Free CancellationRating
7.4
9,704 reviews
Search United Airlines flights
British AirwaysPriceFrom $670Free CancellationRating
6.7
7,975 reviews
Search British Airways flights
American AirlinesPriceFrom $1,132Free CancellationRating
7.1
11,665 reviews
Search American Airlines flights

Traveling to a place near Sofia?

Book flights to Sofia if you plan to visit one of these locations
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.

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