PHX - SOF

$441 Find Cheap Flights from Phoenix to Sofia

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Phoenix to Sofia departing on 8/19. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

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These are the airlines KAYAK users have selected most often from within our search results in flight searches from Phoenix to Sofia.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Phoenix to Sofia.
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Flight Deals

Cheap Flights from Phoenix to Sofia (PHX-SOF)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Phoenix to Sofia that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Phoenix to Sofia

Fri, Oct 24 - Tue, Nov 4
 Logo
7:30 am - 10:05 amPHX-SOF
16h 35m2 stops
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6:00 am - 10:20 pmSOF-PHX
25h 20m2 stops
Sun, Sep 7 - Thu, Oct 9
 Logo
7:40 am - 11:00 pmPHX-SOF
29h 20m2 stops
 Logo
6:15 am - 7:19 pmSOF-PHX
23h 04m2 stops
Fri, Oct 24 - Tue, Nov 4
 Logo
7:30 am - 10:50 pmPHX-SOF
29h 20m2 stops
 Logo
6:00 am - 11:49 amSOF-PHX
38h 49m3 stops
Mon, Sep 8 - Thu, Oct 9
Air Canada Logo
7:40 am - 1:00 pmPHX-SOF
19h 20m2 stops
Air Canada Logo
6:15 am - 7:41 pmSOF-PHX
23h 26m2 stops
$684Air Canada
Find Deal
Mon, Sep 8 - Fri, Oct 10
United Airlines Logo
9:30 am - 11:00 pmPHX-SOF
27h 30m2 stops
United Airlines Logo
6:15 am - 11:25 pmSOF-PHX
27h 10m2 stops
$694United Airlines
Find Deal
Sun, Sep 7 - Fri, Oct 10
United Airlines Logo
6:05 am - 11:00 pmPHX-SOF
30h 55m2 stops
United Airlines Logo
6:15 am - 8:59 amSOF-PHX
36h 44m2 stops
$695United Airlines
Find Deal
Sun, Sep 7 - Fri, Oct 10
British Airways Logo
6:40 pm - 7:10 pmPHX-SOF
14h 30m1 stop
British Airways Logo
2:20 pm - 2:57 pmSOF-PHX
34h 37m2 stops
$780British Airways
Find Deal
Sun, Sep 7 - Fri, Oct 10
British Airways Logo
6:40 pm - 7:10 pmPHX-SOF
14h 30m1 stop
British Airways Logo
2:20 pm - 2:15 pmSOF-PHX
33h 55m1 stop
$832British Airways
Find Deal
Fri, Sep 26 - Sat, Oct 11
Lufthansa Logo
3:45 pm - 11:00 pmPHX-SOF
21h 15m2 stops
Lufthansa Logo
6:15 am - 11:25 pmSOF-PHX
27h 10m2 stops
$895Lufthansa
Find Deal
Sat, Sep 20 - Fri, Oct 3
American Airlines Logo
6:40 pm - 8:20 pmPHX-SOF
15h 40m1 stop
American Airlines Logo
2:20 pm - 2:15 pmSOF-PHX
33h 55m1 stop
$1,078American Airlines
Find Deal
Booking Insights

KAYAK's insights & trends for Phoenix to Sofia flights

Get data-powered insights and trends into flights from Phoenix to Sofia to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Phoenix to Sofia?

The average price of all round-trip flights from Phoenix Sky Harbor Intl Airport to Sofia clicked on KAYAK for each day over the last 12 months.

Your flight ticket price will generally be cheaper if you fly to Sofia on a Saturday and more expensive on a Thursday. On your return trip to Phoenix, you should consider flying back on a Friday, and avoid Saturdays for better deals.

What is the cheapest month to fly from Phoenix Sky Harbor Intl Airport to Sofia?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Phoenix Sky Harbor Intl Airport to Sofia, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Phoenix Sky Harbor Intl Airport to Sofia is October, where tickets cost $712 (return) on average. On the other hand, the most expensive months are May and June, where the average cost of round-trip tickets is $1,222 and $1,191 respectively.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Phoenix Sky Harbor Intl Airport to Sofia, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Phoenix Sky Harbor Intl Airport to Sofia, you should book around 2 weeks before departure, which saves you about 33% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 23 weeks before departure.

Good to know

Low seasonFebruary
Cheapest flight$441
Best time to beat the crowds with an average 14% drop in price.
Most popular time to fly with an average 30% increase in price.
Flight from Phoenix to Sofia

When to book flights from Phoenix to Sofia

Are your dates flexible? Find out the best times to travel from Phoenix to Sofia based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Phoenix to Sofia flights

  • What is the cheapest flight from Phoenix Sky Harbor Intl Airport to Sofia?

    In the last 3 days, the lowest price for a flight from Phoenix Sky Harbor Intl Airport to Sofia was $441 for a one-way ticket and $648 for a round-trip.

  • Do I need a passport to fly between Phoenix and Sofia?

    A passport is required to fly from Phoenix to Sofia.

  • Which airports will I be using when flying from Phoenix to Sofia?

    On your way to Sofia, you’ll fly out from Phoenix Sky Harbor Intl. You’ll be landing at Sofia.

  • Which aircraft models fly most regularly from Phoenix to Sofia?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Phoenix to Sofia?

    oneworld, and Star Alliance are the airline alliances operating flights between Phoenix and Sofia, with Star Alliance being the most commonly used for this route.

  • Which is the best airline for flights from Phoenix to Sofia, United Airlines or American Airlines?

    The two airlines most popular with KAYAK users for flights from Phoenix to Sofia are United Airlines and American Airlines. With an average price for the route of $955 and an overall rating of 7.4, United Airlines is the most popular choice. American Airlines is also a great choice for the route, with an average price of $1,157 and an overall rating of 7.2.

  • How does KAYAK find such low prices on flights from Phoenix to Sofia?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Phoenix to Sofia.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Phoenix to Sofia?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Sofia from Phoenix is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Phoenix to Sofia?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Sofia with an airline and back to Phoenix with another airline. Booking your flights between Phoenix and SOF can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Phoenix to Sofia?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Sofia from Phoenix up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 5 airlines serving from Phoenix to Sofia

 
See real verified KAYAK customer reviews for airlines flying from Phoenix to Sofia. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Phoenix to Sofia? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.6
Austrian AirlinesOverall score based on 823 reviews
8.1Crew
6.8Food
7.6Boarding
6.8Entertainment
7.3Comfort
Airline reviews

Austrian Airlines help and service was fine, but Kayak misled us into believing we had purchased a Business Class ticket. In fact, the tickets were only upgraded Coach Class tickets with luggage restrictions that belonged to the Coach Class. Very disappointed! Paid over $$$$ 9K for the two tickets. Very disappointing!

4.0 OkayAnonymous, Jul 2025EWR - VIE
Read more Austrian Airlines reviews

Austrian Airlines help and service was fine, but Kayak misled us into believing we had purchased a Business Class ticket. In fact, the tickets were only upgraded Coach Class tickets with luggage restrictions that belonged to the Coach Class. Very disappointed! Paid over $$$$ 9K for the two tickets. Very disappointing!

Quick and organized boarding process, friendly staff but not as many snacks and drinks as the previous flight overnight

Landing was a little hard. Food was not great My prior review was for the flight to nyc too

Five star experience all around except for my seat, which was broken. It would only go down 70%.Of the way. It defeats the purpose of buying a business class ticket if you don’t actually get to lay flat..

I love this airline.God bless CAO and the whole staff of this company

Great staff, efficient and knowledgeable. Very helpful with others and considerate towards those with children

WiFi would have been nice and some more powerful usb ports, available ports could not keep my phone’s charge much less charge the phone.

Not so good. I paid for a preference economic seat, and I couldn’t incline it back because it was blocked. They explained me that because is the last before emergency exit. The company new that but it was not explained in the seat selection

It was on time. Snacks could have been provided for free.

Tirana was crazy check in and getting bussed to another gate. Both Germany stops were intensive customs but organized, but that wasn't the airlines problem. The crews were fabulous on the planes. The announcements were not easy to understand in English, slurred speech. Customs inthe US were fast. We waited for luggage, three later arriving planes had their luggage and left before us

Staff was rude. Didn’t give water for 2 hours. Worst service

Excellent flight. Boarding was efficient and departure was on time. Smooth flight with on time arrival. Deplaning was also efficient.

This flight was perfect. No complaints and only the highest regard for the crew and ground staff and how they executed perfectly. I fly a lot with United and would request predictability and transparency in their operations instead of last minute changes.

This is for UA2274 from Houston to Sacramento. The flight was delayed arriving due to mechanical issues so we left about 3 hours later than scheduled. When boarding the plane the temperature inside was excessive - likely close to 100. Pilot apologized and said it was going to improve at altitude, which it did. But before that I honestly thought there might have been more delays removing passengers made ill from the heat. We were delayed leaving due to another mechanical issue. There was not water on the plane due to a panel that was not secured. They did that quickly, but the combination of mechanical issues was rather disturbing and did not reflect well on United.

1. when we went to check in, our 2 first class seats had been CANCELED and the flight was sold out. This was done without our prior knowledge. It was all we could do to restore one first class seat for my wife and I flew economy. 2, Our flight home was scheduled to leave at 10:30 pm. Due to tsunami warnings, the roads were closed and our flight status was uncertain as to whether it would leave as scheduled. It was announced that it would now leave at 11:20 pm and the roads were now open since the tsunami had come and gone. We made a mad dash to the airport and checked in. Delays were announced at 12:30 pm, 1:30 am, 2:30 am and at 3:30 am it was canceled. Since this was a flight due to natural (tsunami) causes, there was no compensation. We were told to return at 1:00 pm the next day and our baggage would be kept on the plane since the same plane was going to leave at 1:00 pm. We had to return to our hotel for the rest of the night. The same plane did not leave at 1:00 pm and our baggage was gone! All in all, it was a miserable performance by UA. Information was hard to obtain and no one knew what was going on and what was going to happen. Hundreds of passengers slept on the floor, chairs, etc. No food and no water was made available to the passengers. It was a situation where UA could care less what was going on. As a one million mile flyer, I had not experienced anything like this before and it was hugely disappointing!

Staff members were not helpful they ignored all calls for an attendant.

Flight was delayed and missed my connection Lufthansa didn’t respond.

Terrible. Delayed 7 hours, and cancelled the flight, leaving me stranded and out of pocket $500 for an alternative last minute flight

Was on time until within 1 hour of flight-how does that happen? Staff very friendly.

the delay for 3 hours was understandable due to weather conditions but the flight should’ve provided some on flight compensations or at least provide more food.

I didn't like that my paid for seat was changed 2 hours before my flight.

Overall, a good experience. The food, however, was subpar. The breakfast was a joke.

First world problems, but still… We were seated in first class and asked for a cocktail on a very short, 50 minute flight. After our drink order was taken, a half hour went by, and we noticed that every other person in the small plane had been served except for us. We got up to ask about it, the drinks finally came, then were taken away three minutes later since the flight was so short. Really strange situation, on the other hand, we were in Utah.

Boarding took forever, the plane was cramped and cold, and the seatbelt song came on constantly throughout the red eye flight with a loud pre-recorded message playing each time

Wonderful crew and early arrival to our destination. It was so nice to have free wifi access and movies too. Thank you!

Bigger seats. Board back to front! Disembark front to back!

Plane was pretty clean, staff was friendly and helpful, flight left about on time arrived early. Took a long time to board and get off the plane - carry on items didn't have enough room so people had to move all around to find places.

Service in first class no longer exists on American Airlines .

My seat was very worn. Otherwise I had an excellent flight

Boarding can be more efficiently done by having the back row passengers board first. This way, the other people do the have to wait for front row passengers to load their luggage in the overhead cabins. Food is simply pathetic for the price I paid. Cleanliness is simply poor; my seat was full of crumps.

Food is too little (in volume) and too spicy.. There are no snacks in the back of the plane in between meals.

The seat I was stuck in was so unimaginably uncomfortable. I have never had that tight of a seat in my 20 years of flying. Even budget airlines give you more space.

We were upgraded to economy plus and everything was awesome!

I liked the crews attentiveness, all food and drink items were tasty, and came out in a timely manner. The entertainment systems were not as responsive and my seat had issues with the auxiliary for the headphones. Seats were OK, and the headrest for my seat could go back only so far. Bathrooms were tight fit.

Our flight was delayed for over an hour due to weather, and it had already been a long travel day. However, the crew was calm and compassionate, listening to every complaint with genuine concern. They got us home safely without incident, in spite of all of the obstacles. I’m grateful.

Hate their old flights, boatding, food and services. Very poor quality

Insulting. Lufthansa flight from Munich to EWR had us getting our luggage when we were told in Florence that it would follow us to Indianapolis. It did not. Then very slow security in EWR caused me and three other passengers from Lufthansa flight from Munich to miss the boarding closure. Behind me were two elderly grandparents and their ten year old grandson. We were all refused entry on a plane to Indy that was still at the gate. The doors had not even closed inside the terminal yet. No apologies or compensation offered. Not even a meal voucher let alone a free hotel stay for our inconvenience. I m not sure what the other three passengers behind me did ( they were elderly with a grandson, recall), but I stated 12 hours overnight in a chilly EWR airport until next flight to Indy at 850 next morning.

The food could be better, more snacks. And have some plugs to chargue the phone.

The pasta in the evening meal was tasteless. Otherwise, the flight was okay.

Everything was really great just The aircraft was too old and sounded it will break during takeoff

Did not use entertainment Food great Stewards had an attitude, not the best but below average from my other flights with AA or BA

The plane was known to be late in advance of takeoff. My guess is that it was known to be late at 11am or 5 hours before scheduled takeoff time. We were late to leave and with a wheelchair and the a cart, we only made it to gate. We raced! Inside plane, all was great

I enjoyed the comfort of Premium Economy. The Purser on London-Nairobi was a little testy, snappish in his tone. I understand stressed, tired, etc but his tone in addressing passengers I found wanting.

Very good crew. The seating in economy plus was excellent, and I slept most of the way. The diabetic meal that I requested was almost tasteless--about a 2 on a ten-point scale.--so I ate little. And why bother serving dinner to fliers at midnight?! I had eaten a meal at the airport six hours earlier. A good breakfast would be better.

Flight was delayed. Though I checked in with BA live chat three times, our special meals were not provided.

My experience with British Airways is excellent, thanks for all 🫶🏻✈️

Old tired plane, Uncomfortable business class seat. Breakfast dreadful and meagre. At least flight was on time!

Safe arrival. Improvement on Time efficiency Effective Communication will be great.

The crew is very friendly and helpful. The food is good for airplane food. The flight is long and hard to sleep. The leg space is great. The plane arrived in plenty of time.

A good flight back to Tampa and thankfully although we had a 90 minute delay because of thunder storms from Charlotte to bottom iof Florida, it was a prudent to avoid these for a comfortable flight as opposed to being tossed around with turbulence.

Everything you need to know for your flight from Phoenix to Sofia

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