SOF - IAD

$407 Find Cheap Flights from Sofia to Washington, D.C.

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 Dulles Intl departing on 5/14. 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 Washington, D.C. Dulles Intl Airport

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Sofia to Washington, D.C., 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, D.C., as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$592
Typical prices: $732-$995
KLM, Air France
Tue 4/21Tue 4/28
SOF - IAD • 1 stop
Cheapest one-way
$407
Typical prices: $717-$767
Multiple Airlines
Thu 5/14
SOF - IAD • 2 stops
Top airlines
Cheapest • from $602 (round-trip)
Best reviews • 7.8 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Sofia and Dulles Intl. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $582 (round-trip)
Shortest trip • 13h 40m (one-way)
Insights
Insights
Insights
Insights
When to travel
Cheapest • 19% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Dulles Intl!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Sofia to Dulles Intl (SOF-IAD)

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

Tue, Apr 21 - Tue, Apr 28
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
$592Multiple Airlines
Tue, Apr 14 - Wed, Apr 22
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
$593Multiple Airlines
Fri, Apr 10 - Sat, Apr 25
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
$597Multiple Airlines
Thu, Apr 16 - Thu, Apr 23
Multiple Airlines Logo
7:00 am - 3:35 pm
SOF
-
IAD
15h 35m
1 stop
Multiple Airlines Logo
9:45 pm - 2:00 pm
IAD
-
SOF
33h 15m
1 stop
$598Multiple Airlines
Tue, Apr 21 - Thu, Apr 30
Multiple Airlines Logo
7:00 am - 3:35 pm
SOF
-
IAD
15h 35m
1 stop
Multiple Airlines Logo
9:45 pm - 2:00 pm
IAD
-
SOF
33h 15m
1 stop
$601Multiple Airlines
Wed, Sep 9 - Wed, Dec 9
KLM Logo
7:00 am - 3:35 pm
SOF
-
IAD
15h 35m
1 stop
KLM Logo
5:35 pm - 2:00 pm
IAD
-
SOF
13h 25m
1 stop
$602KLM
Thu, Apr 2 - Sun, Apr 26
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
$603Multiple Airlines
Wed, Apr 1 - Tue, May 12
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
$605Multiple Airlines
Fri, Apr 10 - Sat, Apr 25
Multiple Airlines Logo
7:00 am - 8:46 pm
SOF
-
IAD
20h 46m
2 stops
Multiple Airlines Logo
6:15 pm - 2:00 pm
IAD
-
SOF
12h 45m
1 stop
$606Multiple Airlines
Tue, May 19 - Sat, Jun 6
Multiple Airlines Logo
7:00 am - 3:35 pm
SOF
-
IAD
15h 35m
1 stop
Multiple Airlines Logo
9:45 pm - 2:00 pm
IAD
-
SOF
33h 15m
1 stop
$607Multiple Airlines
Booking Insights

KAYAK's insights & trends for Sofia to Dulles Intl flights

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

How much is a round-trip flight from Sofia to Washington, D.C. Dulles Intl Airport?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Sofia to Washington, D.C. Dulles Intl Airport departing in April.

What is the cheapest month to fly from Sofia to Washington, D.C. Dulles Intl Airport?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Sofia to Washington, D.C. Dulles Intl Airport, 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, D.C. Dulles Intl Airport is February, where tickets cost $556 (return) on average. On the other hand, the most expensive months are April and January, where the average cost of round-trip tickets is $836 and $751 respectively.

Good to know

Low seasonFebruary
Cheapest flight$407
Best time to beat the crowds with an average 19% drop in price.
Most popular time to fly with an average 2% increase in price.
Flight from Sofia to Washington, D.C.

When to book flights from Sofia to Dulles Intl

Are your dates flexible? Find out the best times to travel from Sofia to Dulles Intl 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 Sofia to Washington, D.C. flights

  • What is the cheapest flight from Sofia to Washington, D.C. Dulles Intl Airport?

    In the last 3 days, the lowest price for a flight from Sofia to Washington, D.C. Dulles Intl Airport was $407 for a one-way ticket and $592 for a round-trip.

  • Do I need a passport to fly between Sofia and Washington, D.C.?

    A passport is required to fly from Sofia to Washington, D.C..

  • Which airports will I be using when flying from Sofia to Washington, D.C.?

    Sofia airport is called Sofia and the only airport in Washington, D.C. is Washington, D.C. Dulles Intl.

  • Which aircraft models fly most regularly from Sofia to Washington, D.C.?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Sofia to Washington, D.C.?

    SkyTeam, and Star Alliance are the airline alliances operating flights between Sofia and Washington, D.C., with SkyTeam being the most commonly used for this route.

  • Which is the best airline for flights from Sofia to Washington, D.C., KLM or United Airlines?

    The two airlines most popular with KAYAK users for flights from Sofia to Washington, D.C. are KLM and United Airlines. With an average price for the route of $556 and an overall rating of 7.8, KLM is the most popular choice. United Airlines is also a great choice for the route, with an average price of $758 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from Sofia to Washington, D.C.?

    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, D.C..

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

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

    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 Washington, D.C. with an airline and back to Sofia with another airline. Booking your flights between Sofia and IAD 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 Sofia to Washington, D.C.?

    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 Washington, D.C. from Sofia 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 Dulles Intl

 
See real verified KAYAK customer reviews for airlines flying from Sofia to Washington, D.C.. 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 Dulles Intl? 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 1471 reviews
8.4Crew
7.3Food
7.1Entertainment
7.8Boarding
7.6Comfort
Airline reviews

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

6.0 GoodGlenn, Feb 2026
AMS - JFK
Read more KLM reviews

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

I’m grateful for the KLM Air France shuttle bus service to Ottawa. However due to construction and other issues related to the chaotic Uber pickup system at YUL, it’s a challenge to find the Kelios bus service to Ottawa. The signs are not clear or even available. No staff to guide passengers. It’s a stressful experience.

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

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

They forgot to serve food and the crew was very unfriendly. Never experienced such a bad KLM flight. Usually fly from Toronto. New York was different.

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.

The immigration hall in Amsterdam was understaffed, so passport checking was slower than it should be for a major airport. They need to get the automatic readers up and running for non EU passport holders. Waiting in line after a long flight feels a bit abusive.

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.

The boarding was efficient. The entertainment system was a bit unstable but Air France has a good selection of movies.

They lost my bag and I still haven’t received it yet

They lost my bag and I still have not received it

Not consistent with the food quality (I mean taste not freshness)

Safe and stable made me sleepy and I slept and dreamt 😂😂😂😂

Food was really mediocre for premium economy in comparison to other airlines… the crew was nowhere to be found… 14 hour flight…

Worst airlines either. First leg was delayed because of crew not available. My connection was missed so they booked me automatically the next day! But, impossible to get anyone on site, web site does not let me access my reservation anymore, confirmed by useless agents over the phone. My 2-leg trip with part in business class arriving at 4:10pm ends up in an awful 3-leg arriving at 9pm the next day with no way to even choose the seats and of course at the very end of the plane. I can understand problems arrive but the way Air France handle it is just unacceptable. You are on your own. Apparently getting you to your destination is the only thing they consider their duty. The customer experience and fatigue is none of their concern. And I have a status with them. I will reconsider my priorities when flying with Air France and encourage everyone to do the same.

Our flight crew were terrific. And they handle a difficult passenger with finesse.

Excellent, Lima to Paris. But Paris to Amsterdam, delayed, missed my flight and KLM treated its missed flights passengers very badly, terribly bad. No hotel accommodation given. Passengers were told to find their own hotel accommodation and claim at reasonable rate and left the booth and literally with armed Police Officers listening to passengers complains. For three hours, after moving by Uber from hotel to hotel and calling and booking online, no hotel was available. I had to return to the airport and seat/sleep on the benches, suffering the cold, and rats running around until my new allocated flight the next day. It was the most terrible KLM treatment even seen and being a Business Class passenger. Still mentally suffering to date as a result.

3 hour delay but out of their control. App said I get vouchers but when I applied for them, they were nowhere to be found in my account

United is one airline which regardless of how many separate United tickets in existence, if one flight breaks down, the airline will take care of all the flights.

It was okay, the food was good, but after the landing there was not enough time for luggage and security to catch a connection. It was crowded on board.

When I went to check in at the United counter in Barcelona, Spain I had 2 different menat 2 different times in United uniforms (standing around with a couple other employees) ask me if I was traveling alone. The one man asked me 3 different ways if I was traveling alone. I am, 68 yeaers old and have all my faculties. I thought it was weird and it made me feel very uncomfortable. What difference does it make if I was traveling alone or with someone? What if I was a recent widow? That would have been horrible. They never gave me a reason why they needed to know who I was traveling with. I was hesitant to question them because I needed to be on that flight.

Crew was great. 2 1/2 hour delay was due to staff needing "rest" was avoidable and self inflicted as United not willing to hire enough crew to keep flight on time.. Ridiculous. The crew and the passengers both suffered due to this.

Fine not above and beyond as I had a connection that was delayed due to maintenance

Bad food, bad service, cold cabin with no additional blankets when asked for (they told me they don’t provide additional blankets). I’m a frequent traveler and this is one of the worst companies I traveled with (by the way I thought that I booked my ticket with Lufthansa but I didn’t see that the flights were handled by United).

Great other than a couple very drunk guys that for a while kept bumping my seat from behind. The staff did their best to control them. Even refused serving them alcohol and allowed the gal sitting next to them to move.

Good crew. Boarding delays. Almost two hours wait for the bags in DC.

Unfortunately weather delayed our flight waiting for our plane to arrive and due to a little snow time was needed to deice the plane so departure was very delayed and I missed the connecting flight

It was great. There were some issues prior to takeoff. The weather was poor so we had to go through deicing, and we were delayed a bit by the pilots' concern about one of the engines, but that's aviation. The pilots handled everything with aplomb, and kept us apprised

Cabin was kept very hot and it was uncomfortable. Entertainment system did not work at my seat. Crew and service is fantastic

Extremely bad BAD BAD BAD. NEVER TURKISH AIRLINES EVER AGAIN..PIRATES COMPANY.

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

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

Lufthansa flight LH04414 from Munich to Washington DC, was fine. Efficient and safe!

Bumpy ride, not Lufthansa‘s fault. Crew managed a situation over a back rest to far down well. It was two iles behind me. The person putting the seat down, against the other person’s knees, was quite rude and belligerent and needed to be told in a no nonsense matter to stopp. Male flight attendant did good job.

Had a few open seats and could use it for a great rest ful journey

It was very good. Service was friendly and efficient, and food was good.

We left 1.5 hours late therefore missing my connection. The airline didn’t give vouchers.

Food could have something without dairy, I couldn't eat anything. Tv for both seats was malfunctioning. They have one bottle of ginger ale for entire plane.... and I paid extra for these seats...very disappointed

We took two long flights with Lufthansa, both were delayed making us miss our connecting flights. Lufthansa took care of the first one. The second was a switch to United and figuring out how to rebook was not a pleasant experience.

Welp - they boarded us appropriately...then had us sit on the plane for over two hours before cancelling the flight...which meant another night in Munich. I probably had it a little better than most as over 500 people had to be accommodated/re-booked etc. The next day I boarded the same flight (for which I had now been ticketed 3 straight days) and - with "only" an hour delay, managed to finally get home over 2 days later than scheduled. I haven't flown Lufthansa to Europe in years...and I won't be looking to do so again in the future. To be clear, though, the people I interacted with - flight crew, Service Center, check-in were all professional and courteous - management is clearly to blame for their lack of communication and unpreparedness for when things go wrong.

Seat very cramped, could not recline. No cheese with meal. Staff very helpful.

Everything you need to know for your flight from Sofia to Dulles Intl

Information on your arrival and departure airports