$310 Find Cheap Flights from Sofia to the United States

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Sofia to the United States departing on 9/16. 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

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Cheap Flights from Sofia to the United States

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
New York
New York1 stop$599
Los Angeles
Los Angeles2 stops$707
Las Vegas
Las Vegas1 stop$1,001
Chicago
Chicago1 stop$710
San Francisco
San Francisco2 stops$905
Miami
Miami1 stop$620
Boston
Boston2 stops$458
Fort Lauderdale
Fort Lauderdale2 stops$843
Denver
Denver1 stop$904
Seattle
Seattle1 stop$937
Atlanta
Atlanta1 stop$843
Tampa
Tampa2 stops$849
San Diego
San Diego2 stops$1,030
Philadelphia
Philadelphia2 stops$807
New York
New York1 stop$599
Los Angeles
Los Angeles2 stops$707
Las Vegas
Las Vegas1 stop$1,001
Chicago
Chicago1 stop$710
San Francisco
San Francisco2 stops$905
Miami
Miami1 stop$620
Boston
Boston2 stops$458
Fort Lauderdale
Fort Lauderdale2 stops$843
Denver
Denver1 stop$904
Seattle
Seattle1 stop$937
Atlanta
Atlanta1 stop$843
Tampa
Tampa2 stops$849
San Diego
San Diego2 stops$1,030
Philadelphia
Philadelphia2 stops$807

Book Cheap Sofia to the United States Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Sofia to the United States 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 Sofia to the United States

Wed, Sep 9 - Wed, Oct 21
Multiple Airlines Logo
6:55 pm - 9:05 pm
SOF
-
BOS
33h 10m
2 stops
Multiple Airlines Logo
10:55 pm - 1:35 am
BOS
-
SOF
19h 40m
1 stop
$458Multiple Airlines
Wed, Sep 9 - Wed, Oct 21
Multiple Airlines Logo
6:45 pm - 9:05 pm
SOF
-
BOS
33h 20m
1 stop
Multiple Airlines Logo
10:55 pm - 1:35 am
BOS
-
SOF
19h 40m
1 stop
$477Multiple Airlines
Thu, Jul 23 - Thu, Aug 6
LOT Logo
5:25 am - 8:20 pm
SOF
-
JFK
21h 55m
1 stop
LOT Logo
5:40 pm - 6:00 pm
JFK
-
SOF
17h 20m
1 stop
$688LOT
Tue, Jul 21 - Mon, Aug 17
Turkish Airlines Logo
9:35 am - 7:55 pm
SOF
-
BOS
17h 20m
1 stop
Turkish Airlines Logo
9:50 pm - 8:20 pm
BOS
-
SOF
15h 30m
1 stop
$694Turkish Airlines
Thu, Sep 17 - Sat, Oct 3
LOT Logo
5:25 am - 3:10 pm
SOF
-
ORD
17h 45m
1 stop
LOT Logo
9:50 pm - 6:00 pm
ORD
-
SOF
12h 10m
1 stop
$710LOT
Tue, Jul 21 - Sun, Aug 16
Turkish Airlines Logo
9:35 am - 7:55 pm
SOF
-
BOS
17h 20m
1 stop
Turkish Airlines Logo
9:50 pm - 8:20 pm
BOS
-
SOF
15h 30m
1 stop
$718Turkish Airlines
Fri, Sep 11 - Wed, Sep 23
Lufthansa Logo
6:20 am - 8:10 pm
SOF
-
BOS
20h 50m
1 stop
Lufthansa Logo
10:00 pm - 6:05 pm
BOS
-
SOF
13h 05m
1 stop
$764Lufthansa
Sat, Jun 20 - Sat, Jul 4
Lufthansa Logo
6:20 am - 4:20 pm
SOF
-
LAS
20h 00m
1 stop
Lufthansa Logo
9:10 pm - 10:50 pm
LAS
-
SOF
15h 40m
1 stop
$1,015Lufthansa
Fri, Jun 26 - Sun, Jul 12
United Airlines Logo
6:20 am - 4:20 pm
SOF
-
LAS
20h 00m
1 stop
United Airlines Logo
9:37 am - 11:00 pm
LAS
-
SOF
27h 23m
2 stops
$1,020United Airlines
Thu, Jul 16 - Thu, Jul 30
United Airlines Logo
6:30 am - 6:33 pm
SOF
-
LAS
22h 03m
2 stops
United Airlines Logo
5:30 am - 11:15 pm
LAS
-
SOF
31h 45m
2 stops
$1,025United Airlines
Booking Insights

KAYAK's insights & trends for Sofia to the United States flights

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

What is the cheapest month to fly from Sofia to the United States?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Sofia to the United States, 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 Sofia to the United States is December, when tickets cost $67 (return) on average. On the other hand, the most expensive months are September and June, when the average cost of round-trip tickets is $961 and $618 respectively.

Good to know

Low seasonFebruary
Cheapest flight$310
Best time to beat the crowds with an average 9% drop in price.
Most popular time to fly and prices are also 3% lower on average.
Flight from Sofia to Boston

FAQs - booking United States flights

  • How does KAYAK find such low prices on flights from Sofia to the United States?

    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 Sofia to the United States.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Sofia to the United States 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 Sofia to the United States?

    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 from Sofia to the United States with an airline and back with another airline.

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

    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 from Sofia to the United States 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 Sofia to the United States

 
Need help choosing which airline to fly with from Sofia to the United States? 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.
7.8
KLMOverall score based on 1527 reviews
7.8Boarding
7.2Entertainment
8.4Crew
7.3Food
7.7Comfort
Airline reviews

As always, it’s a pleasure to travel with KLM. It is one of my favorite airlines.

10.0 ExcellentGeorge, May 2026
OTP - AMS
Read more KLM reviews

As always, it’s a pleasure to travel with KLM. It is one of my favorite airlines.

Brand new plane lots of room the snack was very flavourful and enjoyable

As per usual when you Hit the UK it's a slow process through customs Not as efficient at Thailand for sure

There were no charge points for phones on the economy seats. The seats were comfortable overall. Food was okay.. flight was on time

It was really nice experience by flying this klm flight.I personally recommend everyone to please try this klm flight

Crew is not the cheerful type. very slow meal service (this is their style as have flown this many times)

Empty seats next to me - wish it had been for a longer flight!!

Terrible last row seats many seats available but no offer to move to better seat

Delay on my previous leg, had to run to catch my flight. But that happens. Overall ok.

Delay and had to run between flight to get my connection due to this delay but besides that the overall experience was ok. I arrived with just an hour of delay.

Issue with boarding, group of passengers on a religious trip coming back to NYC kept trying to change seats, even standing when the plane was pushing back. Crew/Pilot kept very good composure, some passengers got aggravated and started venting out loud but this group created a serious security risk. Crew/Pilot should've been more stringent and called in security or remove them from the flight.

Amazing crew, delicious food and drink selection. 12hr felt more like a 4hrs. Comfortable beds. Can’t wait for the new business class cabin

Flying business class saves you. Once you get out of the terminal and onto the plane, it’s fine. The traffic at the gate is a horror. No organization at all. The fact that Business class is promised early boarding is a myth.

My information was stolen, and someone used my card to purchase airline tickets. Everything has been submitted to my bank, and the police. Thank you!!

The seat was paid for but given for some different person .

Krakow airport is very disorganized. nice seats. friendly crew. long legs had screens. short leg did not

Stuck on a plane for 6 hours due to a technical or mechanical issue.

Horrible communication, flight boarded then we sat on plane for almost 5 hours as the runway was barely covered in snow with no plows in sight and the as we tried to taxi there was a major equipment failure due to poor push off technique causing all passengers to be taken off the flight to ultimately have the flight cancelled. There was barely any communication to passengers as to what was happening or what to do next to get placed on another flight. Arriving to my final destination a whole day later having to take a connecting flight through Lisbon to ultimately end up in New York instead of a direct flight as none available for the next day. Never flying LOT airlines again!

Boarding was a madhouse. Airport staff was completely disinterested in communicating about the delays. Never again.

The seats are very narrow. Communication regarding bids for better seating could be better

Older plane with finicky seats. Crew often seem to focus on "pet" clients and over extend services to some over others. I get less attention since I'm not a regular business class client. Regardless, I've paid the money and would expect equal attention.

Our flight attendant was stellar with great anticipation and attention to details. Food was very good, and overall flight, though very long, was really good.

Be honest of what you sell: This was sold as Business Class on all three legs, while the JetBlue plane didn't even have business class seats, and wanted $164 for extra legroom seats.

Great food, and lots of it. They made us come to the gate two hours before the flight and you were stuck in the enclosure until you boarded with no bathroom or food or drink. My seat in business class was very claustrophobic, I could barely get into it and a large board blocked the window and made it even more claustrophobic

Turkish Business Class is a wonderful experience, and the best inflight dining experience I’ve had to date.

The crew was amazing and the food was really good too

Some of the best service I’ve ever seen on an international flight! The staff were super friendly and accommodating. The food was excellent with lots of choices and attention to detail. The seats are kind of old and narrow, but I have wide shoulders. The only area for improvement was making the cabin a little cooler.

It was fantastic. I really enjoyed it. It’s comfortable the flight attendant. Respect you anything you ask for they gave you except the water.

We were experiencing delayed for 4 hours and of course they took us to Turkish airlines lounge but we could not rested up since there is no bedroom. It was tiring and long day for us🙏 Especially we didn’t fly until 5:45am morning for Miami🙏😢

On Turkish it is all about the food and the service. I am overwhelmed with the quality and variety of the dining service offered on business class. I prefer the updated A350 to the older B777 cabin layout, but both are comfortable. Flights left and arrived on time with updates from the captain. I will definitely fly with them again.

Referencing ANA'S service to Japan and the return on UA, the pillow was awful, the crew was not very attentive, and the food was bizarre and tasted okay. Whoever's idea it was to make vegetable tempera in a steam capsule should probably revisit that. Since it was the vegetarian option, it was my only choice.

Crew was great! Good meals. Had room to stretch out

Our flight was delayed 2.5 hours from Lisbon to DC so we missed our connection to Seattle that would have arrived at about 9 PM. The agent initially said we had to stay overnight in DC and there were no other options to put us on to get us to Seattle. While on board I discovered a flight via American he could have put us in but by the time we arrived in DC that was sold out. We were then put on a flight to San Francisco that was also delayed then arrived in San Francisco and our flight to Seattle was also delayed so we ended up not arriving until 2:15 am. Our son could not pick us up so we ended up having to pay over $100 to Uber home. This is the second trip with United that the flight has been delayed causing us to miss an evening in Las Vegas and we were given nothing.

Boarding was smooth and efficient. The only food was some pretzels, but it was a short flight. Not much to order if you were hungry.

Crew were welcoming, accommodating and they worked hard to find places for all carry on.

Packed flight, which makes it tough on crew and boarding staff (and the customers of course). But this was great boarding, clear instructions, etc. Traveling on the weekends are always fraught with danger as you have families and less frequent flyers thus more confusion. But this flight went as planned.

Destroyed my suitcase. Tired of talking about it. Cancelling my unite mileage plus account.

Read the fine print. This was my flight home. I booked my flight for the quickest way home. Had a carry-on and a personal item. Same as my outbound flight. Apparently I needed to pre-pay extra for my carry-on. When I checked in, I was told that I had to check it. I said I’ll pay for it, and was told that this wasn’t an option anymore. They said I still had to pay $50 to check my carry-on. I told them I’ll pay whatever to just carry it in as intended. I was not allowed, so eventually I paid $50 to check my carry-on under a plane that was half full, with overhead compartments that were even less full. My white carry-on suitcase was practically destroyed getting from Idaho falls to Denver to Orange County. The low price air fair was a bait and switch. Got me to the gate, made me pay extra, then didn’t even allow me to pay for a carry on. Not to mention that I paid the $8 for WiFi that didn’t work. All to get my suitcase destroyed. I don’t think I’m going to even keep my Untied mileage plus membership and card. Apparently, membership does not have its privileges for this one.

The flight was delayed, they didn’t even have water for the toilets or for drinks

Even through the flight was delayed due to storms near IAH The flight was great! The crew was so hospitable and professional

The legroom was lacking and the entertainment system lacked adequate selection of older films. Modern films are generally not very good.

Perfect airline, super friendly, great service, tasty food. Would fly again.

The flight attendants were wonderful - one man put my carry on in the bin for me. Very attentive service. Loved the blanket and pillow waiting for me in economy. Food was excellent which is a surprise given the reputation of any airline food. Wine was fine with the meals. Delighted with the new movies - flight went by very quickly. I would definitely fly Lufthansa again.

Flight was delayed by several hours and then cancelled due to weather. But Staff was very helpful getting me on a different flight. United should offer food coupons and tooth brush and paste for stranded passengers

Service was excellent. Flight was only about half full, which meant we had tons of room to stretch out. Boarding area was nice and well organized, flight attendants were super friendly and attentive and we loved the 3 snacks!

My flight was cancelled, but it was not Kayak's fault. Kayak did require me to pay for the ticket twice to two different venders who paid Lufthansa. Kayak/Lufthansa owes me for the first booking I made first was fraudulent on the part of the subcontracting ticket seller. There will be litigation over this issue under the current passenger protection laws.

Original Lufthansa flights were canceled and the alternative route that was offered required cab transfer in New York from JFK to Newark at my own expense. Who can refund these $218?

flight was half full, plenty of empty seats, was able to lie down across 4 seats, food was good, arrived on time

flight was packed, had to check my carryon bag, tiny snack bag offered, but we arrived on time and thats what counts

Was never allowed on and not refunded the full amount of the ticket plus charged a $300 processing fee.

Everything you need to know for your flight from Sofia to the United States

Information on your arrival and departure airports