PHX - SOF

$272 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 3/11. 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, 0 bags

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
$494
Typical prices: $656-$742
Multiple Airlines
Sun 2/1Tue 3/31
PHX - SOF • 2 stops
Cheapest one-way
$272
British Airways
Wed 3/11
PHX - SOF • 2 stops
When to book
2 weeks
in advance
Our data shows that travelers who book at least 2 weeks in advance save around 21% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
November
Cheapest • 31% price drop
June
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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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

Sun, Feb 1 - Tue, Mar 31
Multiple Airlines Logo
8:00 am - 6:20 pm
PHX
-
SOF
25h 20m2 stops
Multiple Airlines Logo
6:10 am - 9:17 pm
SOF
-
PHX
25h 07m2 stops
$494Multiple Airlines
Sun, Mar 1 - Tue, Mar 31
Multiple Airlines Logo
11:59 pm - 10:45 pm
PHX
-
SOF
37h 46m2 stops
Multiple Airlines Logo
6:10 am - 9:17 pm
SOF
-
PHX
25h 07m2 stops
$497Multiple Airlines
Tue, Feb 3 - Tue, Feb 10
Multiple Airlines Logo
7:30 am - 1:55 pm
PHX
-
SOF
21h 25m2 stops
Multiple Airlines Logo
7:00 am - 9:02 pm
SOF
-
PHX
23h 02m2 stops
$501Multiple Airlines
Mon, Apr 27 - Tue, Oct 6
Lufthansa Logo
1:50 pm - 11:10 pm
PHX
-
SOF
23h 20m2 stops
Lufthansa Logo
11:35 am - 7:56 pm
SOF
-
PHX
18h 21m2 stops
$513Lufthansa
Mon, May 4 - Mon, May 18
British Airways Logo
11:12 pm - 8:30 pm
PHX
-
SOF
35h 18m2 stops
British Airways Logo
8:00 pm - 7:00 pm
SOF
-
PHX
33h 00m1 stop
$515British Airways
Wed, Apr 22 - Tue, Jun 9
Lufthansa Logo
1:30 pm - 6:40 pm
PHX
-
SOF
19h 10m2 stops
Lufthansa Logo
6:10 am - 7:55 pm
SOF
-
PHX
23h 45m2 stops
$516Lufthansa
Wed, Apr 22 - Tue, Jun 9
Multiple Airlines Logo
7:00 am - 10:20 am
PHX
-
SOF
17h 20m2 stops
Multiple Airlines Logo
6:10 am - 5:16 pm
SOF
-
PHX
21h 06m2 stops
$517Multiple Airlines
Mon, May 4 - Mon, May 18
British Airways Logo
11:12 pm - 8:30 pm
PHX
-
SOF
35h 18m2 stops
British Airways Logo
8:10 pm - 6:34 pm
SOF
-
PHX
32h 24m2 stops
$518British Airways
Mon, Apr 27 - Tue, Jun 9
Lufthansa Logo
1:50 pm - 11:10 pm
PHX
-
SOF
23h 20m2 stops
Lufthansa Logo
6:10 am - 5:16 pm
SOF
-
PHX
21h 06m2 stops
$519Lufthansa
Mon, Apr 27 - Tue, Oct 6
Multiple Airlines Logo
8:00 am - 11:10 pm
PHX
-
SOF
29h 10m2 stops
Multiple Airlines Logo
6:10 am - 7:42 pm
SOF
-
PHX
23h 32m2 stops
$521Multiple Airlines
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 February.

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 November, where tickets cost $568 (return) on average. On the other hand, the most expensive months are May and June, where the average cost of round-trip tickets is $1,213 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 21% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 19 weeks before departure.

Good to know

Low seasonNovember
Cheapest flight$272
Best time to beat the crowds with an average 32% drop in price.
Most popular time to fly with an average 44% 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 $272 for a one-way ticket and $494 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?

    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 889 reviews
6.8Food
6.8Entertainment
8.1Crew
7.3Comfort
7.6Boarding
Airline reviews

Excellent flight. The crew was exceptionally attentive and organized. Attention to details is unmatched.

10.0 ExcellentLeida, Nov 2025
VIE - EWR
Read more Austrian Airlines reviews

Excellent flight. The crew was exceptionally attentive and organized. Attention to details is unmatched.

Great! They got my vegetarian meal right, flight was comfortable, they helped store my heavy luggage. Pleasant crew and flight staff.

I did wish they would give us the entire little bottle Bailey's instead of just have 1/2 bottle at a time

My layover in Vienna was supposed to be 35 minutes but because my flight was canceled I had to wait in the airport for an additional 8 hours.

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

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.

Check-in, boarding and the flight from Phoenix to Houston was quick and easy. The flight from Houston to Shreveport was delayed 5 hours. It was frustrating but I think United handled it the best they could.

Some flight attendants were great others were cranky. Seats were very tight and sitting on an aisle was very hard as the carts and people walking constantly bumped shoulder and arm.

It was great with United overall except for two things. 1) It was a 5-hour flight and we were with kids, so we were asking for extra snacks. They were extremely reticent to dole them out even though there wasn't any meal and the kids were starting to hit their limit towards the end. 2) Baggage didn't arrive until 80 minutes after we landed.

They lost my luggage, so, not happy. The crew was nice but my suitcases never made it, still trying to find out what happened!

The staff was hospitable and professional. The seat had a bit of wear. The winner shade was stuck 1/4 open. I received the best of both worlds. The morning sun was able to come in and blind the screen i was trying to use while at the same time it was too low to look out and enjoy the view. Rather embarrassing for a 1st class ticket.

Perfect flight. Smooth flight. Arrived 20 minutes early at destination. Excellent service.

The flights were on time which was great give. It was holiday travel season and there’d been some weather issues. The only complaint and this is every time with United is the terrible seat design. The head rest is not built for comfort and having my neck bent forward for a cross country trip reminded me while I try not to take United flights as a rule.

I’m so sorry, I can’t remember her name, I believe it was Dimpti. She was stellar, also a mature Asian flight attendant, lots of flowers in her hair, just as amazing! But literally the crew was AWESOME . Only downside is there weren’t any charging outlets. Maybe I needed to ask a flight attendant , but it would’ve been nice to have one easily accessible.

The flight was delayed by two de-icings. The seatbelt did not work correctly. It did not stay tight.

Everything was absolutely wonderful from check in to baggage claim. Staff was very professional and sweet. Will definitely recommend United to family and friends.

Experience was good. We were delayed in leaving by 15 mins because the flight was waiting on a family that was late in getting to the gate. Food and drink options were as expected. I highly recommend checking in ahead of time using the airline’s app so that it’s quicker to get your luggage tags as soon as you arrive at the terminal. No more waiting in long lines!

The captain brought my 6 year old son into the cockpit and allowed him to ask questions, sit in the captain’s chair and talk about all the gears and levers. Made the trip very special for him.

Better service. No food options, but we did get drinks and a cookie.

it was fine, decent flight... dont get food besides cookies or pretzels so not sure why you ask about food. same for entertainment..

Liked that it was on time. Staff professional and friendly.

More choices on snacks. Built-in video screen to enjoy entertainment choices.

Loved the crew . Absolutely no complaints. Except for luggage lost

this plane was really old, had exit row seats and tray was in arm of seat so super uncomfortable to use. another seat they could t even use the tray it was broke. seat i. front of me had duct tape on it cause seat was ripped open... this plane should either be updated or retired.

We are too tired and frustrated to comment politely at this point

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

Crew was professional and great, flight was clean. However food was pathetic. I ordered a Hindu meal assuming no meat but they served chicken. Need to be very specific- Hindu meal should be categorize as Vegetarian - no meat or egg. Or it should be specific that we are serving meat.

Late flight Delays Poor service Poor staff Worst airline ever

Ground staff and cabin crew were excellent. Flight was perfectly on time. Zero issues.

Even after a delay, getting off the ground, thanks for keeping me safe, the airline made certain that my connecting flight was rebooked to get me to my final destination. It was actually rebooked twice, and my luggage still managed to meet me. The airline gave me a credit for food and beverage to be used at the airport vendors, regretfully, the credit did not transfer to my final boarding pass. Oh, well…

Trip was smooth, good drew, average meal, almost cold coffee. Excellent landing. Did not enjoy going down the stairs, walking to the gate, walking up the stairs, going a long walk to the exchange gate, and going down the stairs again to be bussed all the way where we originally landed to take our next flight! Over all an average experience. Thank you.

I booked extra leg room, due to seat neighbor i now consider extra shoulder and arm room as well. Seems like the seats shrink in width now The crew was very friendly and professional ( 100%). Food was good not great, breakfast was bad, a dry slice of bread would have been better. Facilities clean.

Luggage transfer in Chicago was not performed in time. I received my luggage at my destination two days later.

love the crews and my only problem was the delay at Frankfurt was very bad. I have travelled with Lufthansa for over 30 years now and this was cost me some planned business appointment

The flight delay made the connection a bit tight but that's outside the flight crew's control.

We just made it to our connecting flight. A long, long speed walk!

Loved the boarding option from Business class lounge, experience on flight was excellent, plenty of good food choices

Getting the boarding passes between the BA and AA apps was very clunky.

The airline was not clear about a new departure time so we got to the airport early anyway. The flight left early which was great because of weather. The check in process was very easy and staff were friendly and helpful. The crew was great and our flight was very good.

Awful it always is unfortunately is the only way to fly direct to london

I travelled in business class and was disappointed by lack of service, curt and borderline rude time of the crew and to top it off, all of my luggage was delayed. It was like pulling teeth to even report the missing luggage and recover it the next day from the airport.

Plane was extremely delayed, but not all of it was BA fault (some was). Worst part was lack of room - this had as much space as an Allegiant flight. I thought transatlantic usually gave you an extra inch or two, but not this one. Entertainment system sporadically worked and didn’t have great options. Overhead bins are old and tiny, not as good as aunties new planes.

Boarding was poor. All groups called immediately one after the other resulting in a long queue in the jetty/jet bridge. Seats were very hard and and did not recline on a 4.5 hour flight. No food was available. Plane was cold. There was no entertainment.

The cramped seats are cruel and unusual punishment and may violate the Geneva code.

Check in was was and the agent was very friendly and helpful The lounge was nice...boarding was straight from the lounge Everything worked at our seats, and video entertainment was good ..food was mediocre

The flight was excellent in World Travellor plus. Well worth the extra money. Boarding at Phoenix was the usual poorly organized event. Very stressful.

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

Information on your arrival and departure airports