PHX - SOF

$521 Find Cheap Flights from Phoenix to Sofia

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Phoenix to Sofia departing on 11/6. 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

KAYAK searches hundreds of travel sites at once for deals on flights to Sofia

 
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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Everything you should know

Cheapest round-trip
$521
Typical prices: $788-$927
Multiple Airlines
Thu 11/6Wed 11/19
PHX - SOF • 2 stops
Cheapest one-way
Multiple Airlines
Thu 10/9
PHX - SOF • multi-stop
Top airlines
Lufthansa
Cheapest • from $584 (round-trip)
Austrian Airlines
Best reviews • 7.6 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to book
2 weeks
in advance
Our data shows that travelers who book at least 2 weeks in advance save around 40% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
March
Cheapest • 24% price drop
June
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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We hope you love your trip to Sofia!
Flight Deals
Booking Insights
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

Thu, Nov 6 - Wed, Nov 19
Multiple Airlines Logo
8:00 am - 6:00 pmPHX-SOF
25h 00m2 stops
Multiple Airlines Logo
2:25 pm - 11:44 amSOF-PHX
30h 19m2 stops
$521Multiple Airlines
Find Deal
Wed, Oct 29 - Tue, Nov 4
Lufthansa Logo
1:30 pm - 6:20 pmPHX-SOF
19h 50m2 stops
Lufthansa Logo
6:00 am - 6:53 pmSOF-PHX
21h 53m2 stops
$584Lufthansa
Find Deal
Wed, Oct 29 - Tue, Nov 4
United Airlines Logo
7:05 am - 6:20 pmPHX-SOF
26h 15m3 stops
United Airlines Logo
6:00 am - 6:53 pmSOF-PHX
21h 53m2 stops
$593United Airlines
Find Deal
Wed, Apr 1 - Sun, Apr 5
British Airways Logo
8:40 pm - 1:30 pmPHX-SOF
30h 50m1 stop
British Airways Logo
9:10 pm - 6:30 pmSOF-PHX
31h 20m1 stop
$634British Airways
Find Deal
Thu, Nov 6 - Wed, Nov 19
British Airways Logo
3:25 pm - 11:15 amPHX-SOF
34h 50m2 stops
British Airways Logo
9:00 pm - 6:15 pmSOF-PHX
30h 15m1 stop
$663British Airways
Find Deal
Thu, Oct 23 - Wed, Nov 5
Multiple Airlines Logo
8:30 pm - 11:00 pmPHX-SOF
40h 30m2 stops
Multiple Airlines Logo
6:10 am - 10:30 pmSOF-PHX
25h 20m2 stops
$678Multiple Airlines
Find Deal
Thu, Oct 23 - Wed, Nov 5
British Airways Logo
8:37 am - 1:30 pmPHX-SOF
18h 53m2 stops
British Airways Logo
9:00 pm - 6:15 pmSOF-PHX
30h 15m1 stop
$689British Airways
Find Deal
Wed, Apr 1 - Sun, Apr 5
United Airlines Logo
1:40 pm - 6:40 pmPHX-SOF
19h 00m2 stops
United Airlines Logo
6:15 am - 10:06 pmSOF-PHX
25h 51m2 stops
$815United Airlines
Find Deal
Wed, Apr 1 - Sun, Apr 5
United Airlines Logo
7:40 am - 11:00 pmPHX-SOF
29h 20m2 stops
United Airlines Logo
6:00 am - 5:12 pmSOF-PHX
21h 12m2 stops
$817United Airlines
Find Deal
Thu, Dec 18 - Sun, Jan 4
Emirates Logo
1:15 pm - 1:25 pmPHX-SOF
39h 10m2 stops
Emirates Logo
1:05 am - 10:14 pmSOF-PHX
30h 09m2 stops
$5,310Emirates
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.

How much is a round-trip flight from Phoenix Sky Harbor Intl Airport to Sofia?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Phoenix Sky Harbor Intl Airport to Sofia departing in November.

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 March, where tickets cost $685 (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 40% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 23 weeks before departure.

Good to know

Low seasonNovember
Cheapest flight$521
Best time to beat the crowds with an average 6% drop in price.
Most popular time to fly with an average 31% 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 $521 for a round-trip ticket.

  • 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?

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

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

    The two airlines most popular with KAYAK users for flights from Phoenix to Sofia are KLM and Austrian Airlines. With an average price for the route of $1,020 and an overall rating of 7.7, KLM is the most popular choice. Austrian Airlines is also a great choice for the route, with an average price of $1,019 and an overall rating of 7.6.

  • 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 853 reviews
7.6Boarding
8.1Crew
6.8Entertainment
7.3Comfort
6.8Food
Airline reviews

Very limited legroom in a 10 hour flight.very old plane.

4.0 OkayAssaf, Sep 2025TLV - VIE
Read more Austrian Airlines reviews

Very limited legroom in a 10 hour flight.very old plane.

The flight was delayed for 30 minutes with no apparent reason. There is no entertainment at all, and no USB or electric outlets for charging your phone or tablet.

They had me unpack a handbag 2 lbs overweight into another handbag 8 lbs underweight for a Bible.

My flight was canceled and even though I paid אם KAYAK you didn't even answer me and obviously didn't refund my money. I will never buy a ticket through you again.

Accessibility serious problems in Viena airport making it seriousely difficult in in-between gates and boarding travel. Pretens of breakfast and service care in the economy pathetic.

One thing I really liked about Austrian Airlines was that the flight attendants were very kind, and the in-flight entertainment offered many choices. One thing that could be improved is the meal service, since only a vegetarian option was offered — it would be better to have at least two choices

Despite the booked seats in front of the land we were moved to the back of the plane even first like 8 lines were totally without pasangers. When I tried to sit on empty seat flight attendant asked me to go to my dedicated seat in the fully crowded back of the plane. She was not able to explain why. Food was very poor on flight LAX - VIE.

We had a wonderful experience overall. The only issue was check-in our luggage at the Split Airport counter. It was very confusing because we needed to pay for baggage.

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

Trip was great. A wild landing in Ottawa with the wind and rain, but the pilot did a great job. Always love flying United.👍

I will never book a flight through Cheap fare. They booked me from Portland Main . And would not give me a refund, so I bought 2 tickets one for 299. From Portland Main to ORD. Then I had to buy a ticket from Oregon PDX to ORD that was another 440. So Just so you know they even told me it was there fault but no refund. Bad bussniess. I did inform United but they said they couldn't help me due to the fact I booked through Cheap Tickets. Never again. And I'm spreding the word. I let everyone know at my 50th class reunion

We were in business class. the angled seats in that class do not have a real window view & the placement of the controls are bad. But we knew that. But the food options were mediocre. The taste was fine, but the size was for a child. It’s just really feels like United is skimping on everything. Even when we were in the Polaris lounge they did not have diet sodas. They said they were out no Coke zero no Diet Coke, etc. I do not think the portion of nuts they serve on the plane could get any smaller. Really a minimal service and offer for what you’re paying for in business.

The internet service I paid for didn’t work at all and the flight crew was not very friendly.

Excellent experience. Starting with the agent at the Premier bag drop who noticed I was very early for my scheduled flight and offered to rebook me on an earlier flight with my seat preference. She would not let me leave the counter until she knew that all of the changes and new boarding pass showed up on my United app. At the gate, the flight boarded quickly such that we departed early and the flight was smooth. We arrived 20 minutes early at ORD and I was able to be home in time for dinner. One of the best flights I've had.

The flight attendants were rude. Seemed like they didn’t want to be there. Except for one girl that was really nice. Seats are sooooo uncomfortable. They give you a piece of paper and a thin cushion for a pillow and blanket that does nothing. Airlines have gone way downhill, especially United international flights. Food was disguting. Definitely flying ANA next time.

Late FA meant slow boarding. WiFi did not work. I’m a medium plus sized passenger. The seatbelt was for the first time ever barely fitting. And we delayed on the tarmac 40 min

Salina to travers city was great! But the sept 24 Tranverse city was not! Traverse city to chichago was cancelled, i went to Denver & got to Salina 6 hours later!

Flight is clean and ontime. Crew is friendly. Snack can be better and the internet connection is poor

Crew was excellent. This was a relatively long flight though and had very little leg room, and no entertainment.

Ring in first class for an overnight flight, there was no blankets nor pillows for first class customers.

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

Lufthansa still has a good level of quality compared to US airlines, especially with respect to (1) food quality - actually tasty, (2) good French red wine - free, (3) good movie selection. Also my ticket price includes 1 free check-in luggage, while some other budget airlines sneak in an extra $150 for a checkin.

I think they overbooked Frankfurt to New York and bumped me off. This changed my return travel I arrived home about 4 hours late. Almost 24 total travel time Totally unacceptable Would not travel with United

We were moved twice on flights to the point we weren’t even on Lufthansa anymore. We had to fly united. Lost paid extra leg room twice. To top it all off we’re forced to pay $375 and $275, respectively for you luggage that was considered sports luggage. We were told it would be Lufthansa fares l, from the united desk, AND WE DIDN'T EVEN HAVE A LUFTHANSA FLIGHT! I’ll be calling once my trip is over on October 7th to all airlines and Kayak. This was ridiculous!

Everything went smoothly and the staff was very kind. I’m glad I purchased the extra leg room for my long flight; it was totally worth it. We were served 2 meals for a 9 hour flight which I was not expecting and they were very tasty. I appreciated them being vegetarian. Customs line in Munich was long; I had a choice to have a 1 hr 40 min layover or 2 hr 40 min layover; I took the longer layover which I was thankful for because my flight was delayed 30 minutes and there’s a good chance I would have missed my connecting flight. This was my very first international flight and I would fly Discover again without hesitation. Thank you for taking good care of me!

I liked everything BUT the temperature. It was freezing and now I am sick.

I liked Quiet people around me. Crew could have helped people with overhead luggage so they aren't moving other peoples bags around and causing problems for people that had there bags there first

The flight and crew were good. The customer experience on the ground could have been better. We had to reschedule our flight because of a delay on the previous flight. The attendants working the desk in Washington DC were not helpful. They told us to scan a QR code and that would get us rebooked. Why couldn't two people standing at their computers do this? We had to chat with someone to get everything figured out. It was extremely confusing.

The plane was delayed by two hours in Chicago which led to us missing the next flight. Lufthansa rebooked the flight and booked us a hotel for the night in Frankfurt. The level of customer service and getting us taken care of was superb. The flight crew and the service on the ground was superb.

It was a short flight, everything was good with it.

Flight was delayed over one hour and I had to pay to select my seat, even though my booking supposedly had free selection (I paid extra for this at time of booking)

Moved me away from my family and refused to fix it.

I have always been pleased with their service. Would not change a thing

Seating and food was the worst we have experienced in 35 years of traveling for both personal and busines .

Economy seats felt more cramped than other flights we have taken.7 hr, painful sitting hours 6 and 7. Web site difficult to deal with. Originally put in for 1 special meal due to type 2. Meal was awful. Tried to change selection to standard for return flight, on app and website, unable to complete that action.

I was sleeping during dinner service, no one bothered to offer meal later, I remained hungry….until I got a morning sandwich!

Need to offer Better food from LAX to London Service from London to Delhi very delayed after take off.

Connection at Hethrow was horrible..We couldn't get out of the plane for an hour as they were buying people to the airport and there were not enough busses. We had 2 and half hf between flights so it was very tight. After departing plane we had to go thru security again. People with less time in between connections missed their flights

Poor all around experience. Sat at gate in Grand Rapids to Chicago for 2.5 hours. No food or water offered and no allowances to use restroom. Missed connecting flight to London and not offered any compensation including food or lodging. Not happy with AA, claims delay was weather related but no weather issues seen on radar. Take ownership for real reason behind delay which was actually the IT outage. Very disappointing and will not be recommending AA for domestic or international flights if this is the way that customers are treated.

Horrible… I was downgraded without notice, had to sit in economy and given my back injury was in pain most of the journey. I expect to be reimbursed for this inconvenience and after my return flight home, I never plan to fly with British Airways again.

Great crew and food and beverage. Seating tight but not the airline's fault. Will definitely fly BA in future!

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

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