$433 Find Cheap Flights from Sofia to Washington

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 Washington departing on 10/1. 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

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These are the airlines KAYAK users have selected most often from within our search results in flight searches from Sofia to Washington, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Sofia to Washington, as well as popular online travel agencies
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Cheap Flights from Sofia to Washington

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Seattle
Seattle3 stops$759
Seattle
Seattle3 stops$759

Book Cheap Sofia to Washington 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 Washington 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 Washington

Thu, Sep 11 - Wed, Sep 24
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10:40 pm - 8:40 pmSOF-SEA
32h 00m3 stops
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7:00 pm - 2:00 amSEA-SOF
21h 00m3 stops
Thu, Sep 11 - Wed, Sep 24
United Airlines Logo
6:15 am - 10:16 pmSOF-SEA
26h 01m2 stops
United Airlines Logo
2:20 pm - 10:50 pmSEA-SOF
22h 30m1 stop
$819United Airlines
Find Deal
Sat, Nov 8 - Fri, Apr 10
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6:25 am - 7:16 pmSOF-SEA
22h 51m2 stops
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5:50 am - 11:00 pmSEA-SOF
31h 10m2 stops
Sat, Nov 8 - Fri, Apr 10
Lufthansa Logo
6:25 am - 12:10 pmSOF-SEA
15h 45m1 stop
Lufthansa Logo
2:20 pm - 1:05 pmSEA-SOF
12h 45m1 stop
$871Lufthansa
Find Deal
Sat, Nov 8 - Fri, Apr 10
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6:25 am - 9:31 amSOF-SEA
37h 06m2 stops
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2:20 pm - 10:50 pmSEA-SOF
22h 30m1 stop
Sat, Nov 8 - Fri, Apr 10
United Airlines Logo
6:25 am - 11:15 pmSOF-SEA
26h 50m3 stops
United Airlines Logo
7:00 am - 6:40 pmSEA-SOF
25h 40m2 stops
$884United Airlines
Find Deal
Thu, Sep 11 - Wed, Sep 24
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5:00 am - 5:50 pmSOF-SEA
22h 50m3 stops
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7:35 pm - 2:30 amSEA-SOF
20h 55m2 stops
$1,265
Find Deal
Sat, Nov 8 - Fri, Apr 10
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5:00 am - 3:40 pmSOF-SEA
20h 40m3 stops
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2:20 pm - 10:45 pmSEA-SOF
22h 25m3 stops
$1,323
Find Deal
Booking Insights

KAYAK's insights & trends for Sofia to Washington flights

Get data-powered insights and trends into flights from Sofia to Washington 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 Washington?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Sofia to Washington, 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 Washington is February, when tickets cost $802 (return) on average. On the other hand, the most expensive months are March and July, when the average cost of round-trip tickets is $1,006 and $1,001 respectively.

What’s the cheapest day of the week to fly from Sofia to Washington?

The average price of all round-trip flights from Sofia to Washington clicked on KAYAK for each day over the last 12 months.

For Sofia to Washington, Sunday is the cheapest day to fly on average and Friday is the most expensive. Flying from Washington back to Sofia, the best deals are generally found on Saturday, with Friday being the most expensive.

Good to know

Low seasonAugust
Cheapest flight$433
Best time to beat the crowds with an average 3% drop in price.
Most popular time to fly and prices are also 1% lower on average.
Flight from Sofia to Portland

FAQs - booking Washington flights

  • How does KAYAK find such low prices on flights from Sofia to Washington?

    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 Washington.

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

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

    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 Washington 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 Washington?

    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 Washington up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to Washington?

    The cheapest time of day to fly to Washington is generally at night, when round-trip flights cost $854 on average. On average, there is no price difference when choosing to fly in the morning or the evening on this flight route. The most expensive time of day to fly to Washington is generally in the morning, which is peak travel time and where the average cost of a ticket is $929.

Reviews of the top 3 airlines serving from Sofia to Washington

 
See real verified KAYAK customer reviews for airlines flying from Sofia to Washington. 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 Sofia to Washington? 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.
7.4
United AirlinesOverall score based on 8925 reviews
7.3Comfort
7.1Entertainment
7.7Boarding
6.6Food
8.1Crew
Airline reviews

It is clear that someone knew, and competent, is in charge of food at United Airlines at least for the international flights. I was flying in coach, but the choices of the dinner were excellent. Tasty, and appropriate size. I had the beef, which was a little bit like a shepherds pie, and it was good. Nothing comparable has been served on a United flight in years. It will not be confused with three star food, but it is very good for airline food. Even better was the breakfast choice between a cinnamon roll and a breakfast sandwich. I chose the breakfast sandwich which was absolutely delicious and which I would happily order again at my local Starbucks or Panera. It is clear that someone knew indifferent is in charge of the food and it’s about time.

10.0 ExcellentAnonymous, Aug 2025TPA - IAD
Read more United Airlines reviews

It is clear that someone knew, and competent, is in charge of food at United Airlines at least for the international flights. I was flying in coach, but the choices of the dinner were excellent. Tasty, and appropriate size. I had the beef, which was a little bit like a shepherds pie, and it was good. Nothing comparable has been served on a United flight in years. It will not be confused with three star food, but it is very good for airline food. Even better was the breakfast choice between a cinnamon roll and a breakfast sandwich. I chose the breakfast sandwich which was absolutely delicious and which I would happily order again at my local Starbucks or Panera. It is clear that someone knew indifferent is in charge of the food and it’s about time.

The flight was comfortable with the exit row and great service

Had to cancel first flight because Airporter Bus took over 3 hrs to get to airport which resulted in an extra $378 dollar fare . Is there anyway I can be reimbursed for initial fare since it was not my fault? Sent from my iPhone EJ Ledet

For both flights I requested a gluten free meal, they didn’t have one nor were there other options.

Plane was crowded and even when we hit altitude, the plane was hot, not enough air flow.

Flight attendant in first class gave poor service (like he didn't want to be there) and food was awful. We sat waiting for gate upon arrival over 45 mins.

The experience was great, the crew was very polite and hospitable. I will definitely make if my go to airlines.

Inoperable monitor left no entert for 9 hours. Crew was not helpful Food was awful.

Inoperable monitor left no entertainment for 9 hours. The crew was not helpful. Food was awful.

Stuck on tarmac for two hours plus a 5.5 hour flight. Rude flight attendant. And no meals, not even for purchase!

We couldn’t fly to Chicago on our booked flight. The flight was overbooked.

Small seat space for 13 hours flight, they charged for baggage , very bad quality of food,

I was sitting almost in the back, the seats are very tight and there’s no legroom, it’s uncomfortable for a long distance

Absolute worst airline. Charged us $720 to check 4 bags (2 of which were carry-on). Entertainment systems didnt work. And on a 12 hour flight they served 2 meals and never once came around outside of those 2 meals with a beverage or cup of water. Will never fly them again.

Took forever to board. They made announcements without the loudspeaker and since the waiting room was full of screaming kids, no one could hear what they were saying. The business class sleeper seats were designed for tall skinny people. When partially reclined there was nowhere to rest my feet because they did not reach the footrest. and when fully reclined there wasn't room at my sides for my arms. Definitely one of the worst sleeper seats I have ever had.

About an hour delay but we made it to Chicago. I feel that the smaller connecting flights are the ones that cause the delays on the bigger planes that fly international.

Amazing trip! No delays, no broken or lost luggage, and amazing food.

The food we received during the flight was excellent. The service was very friendly. Definitely the best value for the money when flying across the Atlantic.

I use a wheelchair for mobility. Both in my flight from Houston and back to Houston from Istanbul, the Turkish airline staff asked that I claim my wheelchair at the luggage area. On arrival to Istanbul, parts of the wheelchair were in disarray at that time I raised no objection however upon claiming my wheelchair in Houston parts where outright missing. In both occasions, upon arriving in Houston and arriving in Istanbul, I asked multiple times why am made to pick up my wheelchair in the baggage claim rather than at the jet bridge. Getting the wheelchair at the jet bridge minimizes the probability of loosing parts because they can be hopefully reclaimed on the spot. I was told in Houston that a manager turned down my request to claim the wheelchair at the jet bridge in Houston. This is extremely frustrating because a wheelchair is not a set of clean underwear or a toothbrush- this is the way I move. A Turkish Arline staff took my complaint at the luggage claim area in Houston but as of the writing of this review the only contact I have received from the airline is because I initiated a claim rather than her as she told me she would.

The security at the airport was excellent. The one criticism is the boarding process just before entering the plane. There were only 2 boarding lines and there were no barriers thus leading to a mass rush to enter the plane. I suggest that they board by rows, eight or ten rows at a time to prevent the mass rush to enter the plane. Otherwise, I would highly recommend Turkish Airlines

The flight from Dulles to Munich was just okay. The seats were comfortable and extra foot room was noticeable in comfort plus. Disappointed in the booking in so much I requested an aisle seat and then was assigned a middle seat. The food was inedible. Movie choices were moderate. I usually fly Delta, but this WA flight was cheaper. Next time, I'll happily pay the extra to fly Delta.

They don’t give information on why a flight is delayed in a timely manner. Very frustrating.

The flight was ok but chargers did not work and the speakers in the back of the cabin did not either. But I am writing because the crew was really, really rude and not only rude but had the curtains always closed, forgot to clear our trays, the bathrooms were filthy and trash was building out, and one of the attendants even had her EARBUDS on while in the cabin. From movement it seemed like she was listening to music, so not even the safety aspect was there. My neighbor s English is not good and they were very dismissive of her. when we deplaned the crew in the back was just chatting with one another and the first class attendant was briefly and said goodnight. It is nice that a crew gets along so well, but they did not take care of passengers at all. They rushed through all the services and otherwise did not go through the cabin to offer water or anything else. i had the feeling of being unwelcome at a party. I am not a grumpy traveller but I thought you really needed to know. Thank you, Carin

Food was terrible. They ran out of options and gave me a bland undercooked pasta and veggies. Only middle seat was available to select although I paid extra. Baggage delayed at destination. Flight attendants not really helpful.

Flight was late arriving. So, we left 25 min late. Pilot made some time up during the flight. Therefore, we arrived alittle past original time.

Crew was great. But my flight was late arriving and as a result, I missed my connecting flight to Richmond. I had to catch a later flight. On a positive note, the attendants at the counter were extremely helpful in booking my later flight. They book my on the next flight to Richmond.

If the plain wait for the passenger it should wait for the baggage!!

The plane (Mitsubishi CRJ) felt old, creaking and not very new. The crew was okay. Hot water provision was broken so hot beverages could't be served.

One one boarding scanner was working to scan 400+ passengers to an Airbus 380. Food in premium economy was mediocre.

Liked the flight being almost on time (airport issues created a delay). Disliked the issue printing tag bags on the kiosk and having to wait for an hour on like to drop my bags.

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