$340 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 6/10. 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$535
Los Angeles
Los Angeles1 stop$709
Las Vegas
Las Vegas1 stop$891
Chicago
Chicago1 stop$653
Miami
Miami1 stop$623
San Francisco
San Francisco2 stops$820
Boston
Boston2 stops$576
Denver
Denver1 stop$835
Fort Lauderdale
Fort Lauderdale3 stops$773
Seattle
Seattle2 stops$818
Atlanta
Atlanta1 stop$776
Tampa
Tampa1 stop$775
San Diego
San Diego1 stop$898
Philadelphia
Philadelphia1 stop$656
New York
New York1 stop$535
Los Angeles
Los Angeles1 stop$709
Las Vegas
Las Vegas1 stop$891
Chicago
Chicago1 stop$653
Miami
Miami1 stop$623
San Francisco
San Francisco2 stops$820
Boston
Boston2 stops$576
Denver
Denver1 stop$835
Fort Lauderdale
Fort Lauderdale3 stops$773
Seattle
Seattle2 stops$818
Atlanta
Atlanta1 stop$776
Tampa
Tampa1 stop$775
San Diego
San Diego1 stop$898
Philadelphia
Philadelphia1 stop$656

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

Thu, Apr 9 - Wed, Apr 15
Multiple Airlines Logo
7:00 am - 3:35 pm
SOF
-
IAD
15h 35m
1 stop
Multiple Airlines Logo
6:15 pm - 2:00 pm
IAD
-
SOF
12h 45m
1 stop
$513Multiple Airlines
Tue, May 12 - Tue, Jun 2
Multiple Airlines Logo
7:00 am - 3:35 pm
SOF
-
IAD
15h 35m
1 stop
Multiple Airlines Logo
6:15 pm - 2:00 pm
IAD
-
SOF
12h 45m
1 stop
$524Multiple Airlines
Tue, May 12 - Tue, Jun 2
KLM Logo
7:00 am - 6:53 pm
SOF
-
IAD
18h 53m
2 stops
KLM Logo
1:32 pm - 2:00 pm
IAD
-
SOF
17h 28m
2 stops
$543KLM
Thu, Mar 19 - Sat, Apr 4
LOT Logo
2:35 pm - 9:35 pm
SOF
-
JFK
13h 00m
1 stop
LOT Logo
10:20 pm - 1:55 am
JFK
-
SOF
20h 35m
1 stop
$601LOT
Mon, Mar 9 - Mon, Mar 23
LOT Logo
2:35 pm - 9:35 pm
SOF
-
JFK
13h 00m
1 stop
LOT Logo
11:35 pm - 1:50 pm
JFK
-
SOF
32h 15m
1 stop
$603LOT
Sat, Apr 18 - Fri, May 1
Lufthansa Logo
6:20 am - 7:55 pm
SOF
-
ORD
21h 35m
1 stop
Lufthansa Logo
10:30 pm - 10:30 pm
ORD
-
SOF
16h 00m
1 stop
$656Lufthansa
Thu, Apr 9 - Thu, Apr 16
United Airlines Logo
6:30 am - 7:18 pm
SOF
-
LGA
19h 48m
2 stops
United Airlines Logo
2:49 pm - 12:10 pm
LGA
-
SOF
14h 21m
2 stops
$664United Airlines
Mon, Mar 9 - Mon, Mar 23
United Airlines Logo
7:55 am - 6:41 pm
SOF
-
LGA
16h 46m
2 stops
United Airlines Logo
2:59 pm - 1:15 pm
LGA
-
SOF
16h 16m
2 stops
$683United Airlines
Thu, Mar 19 - Sat, Apr 4
KLM Logo
7:00 am - 5:54 pm
SOF
-
MDW
17h 54m
2 stops
KLM Logo
1:10 pm - 2:00 pm
MDW
-
SOF
16h 50m
2 stops
$758KLM
Mon, Mar 16 - Sun, Mar 22
Lufthansa Logo
6:10 am - 5:40 pm
SOF
-
TPA
17h 30m
1 stop
Lufthansa Logo
7:25 pm - 6:00 pm
TPA
-
SOF
16h 35m
1 stop
$775Lufthansa
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 September, when tickets cost $602 (return) on average. On the other hand, the most expensive months are February and August, when the average cost of round-trip tickets is $780 and $771 respectively.

How far in advance should I book a flight from Sofia to the United States?

To calculate weekly average prices, KAYAK takes all prices for each week before departure 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 average of all the values for each week.

To get a below average price on the flight from Sofia to the United States, you should book around 2 weeks before departure, which saves you about 9% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 20 weeks before departure.

Good to know

Low seasonNovember
Cheapest flight$340
Most popular time to fly with an average 1% increase in price.
Flight from Sofia to Los Angeles

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.
7.7
KLMOverall score based on 1460 reviews
7.8Boarding
7.6Comfort
8.4Crew
7.3Food
7.1Entertainment
Airline reviews

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

8.0 ExcellentAnonymous, Feb 2026
AMS - NCL
Read more KLM reviews

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.

At the airport, terrible, I do not want to even remember it. It was too humiliating for a business class passenger.

Couldn’t get boarding pass in SLC even with help from a redcoat, so had to find a desk in AMS to get boarding pass. Technical problems so not sure why. Very inconvenient. The KLM app is not as user friendly as most apps. Also had to wait almost an hour on the tarmac for a fuel truck, which caused us to miss a connecting bus in LUX.

Over 1 Hr delay. No APU so no AC on ground. Plane was hot during boarding and then they closed the doors over 20 minutes before engine start so interior of plane was steamy hot and stuffy. Could have been helped by opening doors until ready to depart.

First of all we couldn’t check in online, then we learn at the airport we were on stand by for KLM’s mistake of overbooking. The seats were not comfy at all. Our luggage got lost.

Ad experience - been flying many years with them but they are losing out to other carriers with their service and bagage / seating policy. My 2 12-yo kids were not placed with the parent. Absurdity.

Short flight so it was okay. Nice crew, all very pleasant and professional. We were near the back in row 27 so just as we got our drinks, we started our descent so had to drink very quickly!

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

Although I was flying in business class, the feeling, comfort and in general the whole experience was like flying in a low cost airline. Boarding by. Us, no priority to business class passengers. The plane was very old and looked poor and rely old. Seats do not recline. Space between rows very small. No separation between business class and economy. No separate toilet for business class passengers. Of course no entertainment, no WiFi and no charging. Very bad experience

Smooth flight, excellent crew and good food. Not enough space; sitting are too small.

Flight was delayed for a hour from Warsaw, not sure why. When we landed in Chicago, plane was still on the runway for about half a hour. Took a while to get off.

No WiFi and ok comfort in business class. Home safe I guess that’s all that really matters.

Crew was excellent. Business class was poor on the short flight and mediocre at best on the international flight.

Flight attendants were friendly & good service, food sucks, seats uncomfortable, not many Asian movies or shows flying from Hong Kong

We got delayed three hours and nobody thought to have the bathroom fixed while we were sitting waiting to board? took a full hour to have maintenance come and check it off. Had to shut the bathroom down twice so that the pilots could go to the bathroom. Everyone missed their connections.

Given I (and I’m assuming most people) have both carry in and a personal item included in their fare, I find it very unfair that on neither of my flights I was able to use the overhead for my small backpack because they were completely rammed with luggage, people personal items, jackets, hats and other items. So the only item I brought in had to be stuffed under my seat while they had their leg room and sat comfortable with all of their items in the overhead. This has to stop because I was uncomfortable on both flights when I only had one smaller item that could not be checked due to its contents (medication etc). Plenty of people could have checked theirs but chose not to and then took up the space allotment for 2 people.

Flight left on time and we arrived 25 minutes early! There was a gate available when we arrived so early on a busy Sunday afternoon! Flight attendants came around twice with the drinks cart.

Wonderful. Quick boarding. Early departure and we arrived 30 minutes early at our destination. Unfortunately, when you arrive early, there is still a departing aircraft at our gate. We had to park for 30 minutes until the gate was clear. So our early arrival was not really early at the gate. Otherwise it was a quick and smooth flight. Appreciated the efficiency.

I couldn’t make my first flight due to weather delays trapping us in the town we were in. Then I had to buy a new ticket

Flight attendants had a little attitude. Food tastes no good.

Chargers didn’t work, no entertainment and we had to wait for taxiing for easily 40 minutes after arriving early. Bags were late too!

Everything was great except for the boarding process. Everyone is lining up all at the same time and it’s hard to tell between the groups as they are way too large.

Women boarding passengers at the gate was absolutely rude and disrespectful of passengers. The flight attendant was absolutely delightful! Smiling and connected with the passengers. So happy. The seats are cramped and uncomfortable but I guess that’s just the way it is Communication regarding flight was excellent

Typically great service from Turkish with comfortable seat and amenitie, good food and great attention from staff.

Delicious food, comfortable and clean plane. It's a little cramped in the hall in front of the gate.

Very hot cabin made long flight uncomfortable, even in business class! Food was great. Istanbul business lounge had great food but too few bathrooms and seating . They also need more electric outlets for charging devices. Appreciate the ability to go through fast track lines w business class

The crew on this flight provided exceptional business class service to me.

The staff at the boarding or the rudest uninformative and no English whatsoever they’re very rude as if they are envious of you travelling I don’t understand how could someone would be this rude and this out of touch and cold

You charged me for luggage although the airline does not- you charged me for seat when customers can pick their own seat at checkout in I travel to Europe slot and I will not use kayak again

The seats were extremely small. Boarding was not communicated correctly. It wasn’t a pleasant trip.

They oversold the tickets by one which was my ticket so I didn’t have a ticket till last second

Not good. I was supposed to be in Mint but got in economy class

Requested food options were always finished. Supplied food items were good but of course not the desired choices.

It was good. The seats in economy weren’t bad

I hated the FRA Airport. Confusing signage, including the path to Immigration and Security It seems that the airport grew haphazardly over the years. I have been through multiple WW Hubs with much better experiences.

Excellent service; they helped me reschedule so I can fly in an earlier flight

Wonderful staff. The boarding process can be improved a little better by adequate prior communication but all in all they did fine. However the boarding gate was quite unfreindly to elderly and who needs help with sevral stairs.

Flight map did not work. Crew was great, food was good, plane took off on time and landed early. That's all I can ask.

I had a good comfortable seat. There was nearly an hour delay. There was an accident with the champagne, but I was well compensated. These things happen sometimes.

Very good. Comfortable and I felt well taken care of from start to finish

Bulkhead seats should not be an extra charge. They are extremely uncomfortable. And we missed our connecting flight due to slow luggage retreaval.

Not great - seats were very narrow and food was terrible.

Some of the crew was sassy and not super helpful. The food was okay, but it seems like they were all unprepared compared to my flight I did from JFK to Frankfurt

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

Information on your arrival and departure airports