PHX - SOF

$484 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 4/27. 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
$749
Typical prices: $677-$749
Multiple Airlines
jue. 2/5mar. 3/31
PHX - SOF • 2 stops
Cheapest one-way
$484
Multiple Airlines
lun. 4/27
PHX - SOF • 3 stops
Top airlines
United Airlines
Cheapest • from $791 (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.
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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

jue., feb. 5 - mar., mar. 31
Multiple Airlines Logo
8:00 am - 1:15 pmPHX-SOF
20h 15m2 stops
Multiple Airlines Logo
6:10 am - 9:17 pmSOF-PHX
25h 07m2 stops
$749Multiple Airlines
Find Deal
mié., ene. 7 - mié., ene. 14
Multiple Airlines Logo
11:35 am - 6:20 pmPHX-SOF
21h 45m2 stops
Multiple Airlines Logo
6:10 am - 10:45 pmSOF-PHX
25h 35m2 stops
$783Multiple Airlines
Find Deal
lun., dic. 8 - mié., ene. 14
United Airlines Logo
6:18 pm - 10:45 pmPHX-SOF
19h 27m2 stops
United Airlines Logo
6:10 am - 11:57 pmSOF-PHX
26h 47m2 stops
$791United Airlines
Find Deal
lun., dic. 8 - mié., ene. 14
Lufthansa Logo
3:38 pm - 6:20 pmPHX-SOF
17h 42m2 stops
Lufthansa Logo
6:10 am - 10:59 pmSOF-PHX
25h 49m2 stops
$796Lufthansa
Find Deal
mié., ene. 28 - dom., feb. 1
Lufthansa Logo
10:22 am - 1:15 pmPHX-SOF
17h 53m2 stops
Lufthansa Logo
6:10 am - 10:59 pmSOF-PHX
25h 49m2 stops
$843Lufthansa
Find Deal
lun., dic. 8 - mié., ene. 14
British Airways Logo
3:07 pm - 8:10 pmPHX-SOF
44h 03m2 stops
British Airways Logo
9:00 pm - 6:15 pmSOF-PHX
30h 15m1 stop
$844British Airways
Find Deal
mié., ene. 7 - mié., ene. 14
British Airways Logo
11:59 pm - 11:15 amPHX-SOF
50h 16m2 stops
British Airways Logo
9:00 pm - 6:15 pmSOF-PHX
30h 15m1 stop
$850British Airways
Find Deal
mié., ene. 7 - mié., ene. 14
SWISS Logo
10:22 am - 3:15 pmPHX-SOF
19h 53m2 stops
SWISS Logo
2:00 pm - 11:57 pmSOF-PHX
42h 57m3 stops
$851SWISS
Find Deal
mié., ene. 7 - mié., ene. 14
SWISS Logo
10:22 am - 6:20 pmPHX-SOF
22h 58m3 stops
SWISS Logo
2:00 pm - 11:57 pmSOF-PHX
42h 57m3 stops
$875SWISS
Find Deal
lun., may. 4 - lun., may. 18
Lufthansa Logo
2:55 pm - 11:10 pmPHX-SOF
22h 15m2 stops
Lufthansa Logo
6:40 pm - 5:55 pmSOF-PHX
33h 15m2 stops
$877Lufthansa
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.

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 seasonMarch
Cheapest flight$484
Best time to beat the crowds with an average 28% 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 $484 for a one-way ticket and $749 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 874 reviews
7.6Boarding
6.8Food
8.1Crew
7.3Comfort
6.8Entertainment
Airline reviews

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

10.0 ExcellentLeida, Nov 2025VIE - 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.

Very nice flight love the small aircraft. We had a wonderful flight attendant. Nice to see someone that really enjoys her job. Don't have her name but had a southern accent.

This was an older airplane. The cabin was constantly warm to hot throughout the 10 hour flight and there were no vents to personalize air flow. Also since it was an older plane, the material and comfort of the chairs were very uncomfortable. I left my flight with major soreness on my tailbone.

Very thoughtful flight attendant offered me water immediately since I had run to make my connection.

Door to door, the crew and staff were amazing. It was a stressful travel day with delays, but they were focused on customers and doing what they could to get us to our destinations.

Even though we were delayed, we were able to make our connection

Seats in waiting area and on plane hard as rock. Fast internet on the flight was great! Crew was kind.

Starlink wifi on the Embraer E175 is an excellent experience. I was able to connect and work from IAD all the way to approach into BTV.

Older aircraft, no meal, only food was for purchase. Not impressed United.

United needs to step up their game. Delayed flight leaving Seattle, San Francisco. Older aircraft, not very comfortable.

Always wish for more healthy, gluten free options. We have to bring our own.

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.

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!

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!

We didn't get the coffee with breakfast in the morning.. 30 mins lazer I asked flight attendant why don't we get coffee now at least.. after the breakfast..she said that captain announced possible turbulences fee minutes ago, which didn't ecplain why we didn't get it with the breakfast..breakfast was very poor btw..just little pastry which you can eat in 4 little bites. Turbulences fortunately didn't even happen.. but we didn't get that more than necessary coffee in the morning after the night flight with very poor sleep.. They just served breakfast 1 hour afzer we took off..at like 11 PM.. that doesn't make sense at all.. Also, flight attendants weren't very nice..they looked like they're not happy with their job.. :/

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!

Smooth trip no turbulence which is always a bonus for me lol! In cattle class so an element of being a bit squished (but not as bad as other shorter haul airlines) smaller plane than the one we flew out on and entertainment system wasn’t as modern but still definitely passed the time. Lovely crew x

I was attacked in the Miami airport and the staff did nothing. On my flight from London to Miami one of the flight attendants screamed at me and demanded I keep my seat in the upright position at all times during the fight so the man behind me was comfortable for the flight. I will never in my life use British airways again

Airlines have to stop assuming passengers bring entertainment. Provide it like you used to in business class and above!! N

I don't know about the others but the flight attendant that took care of us had the absolute wrong approach "how do we dare asking for water or anything else for that matter"

Flying on the Boeing 787 from Seattle to London was everything that I expected. Every thing was great.

Not my definition of first class. No leg room and barely any recline. The food was good. The crew was great. The comfort for the price I paid for London to Cairo was highway robbery. The Wi-Fi didn't work for me either.

Seat pitch is not enough to eat comfortably. When seat in front is reclined, your screen comes closer to your face. Ryanair seats are actually more comfortable.

The leg from Portland to Heathrow was great for a business class ticket. The BA leg from Heathrow to Lisbon was terrible. Basically coach seating with an empty seat between you and next passenger. Absolutely no leg room. Should not have been charged for business class and it was a 3 hour flight.

The flat beds. Other than that, the place was not clean.

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

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

Information on your arrival and departure airports