SOF - IAD

$489 Find Cheap Flights from Sofia to Washington, D.C. - Compare and Save

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 8/26. 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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Everything you should know

Cheapest round-trip
$632
Typical prices: $646-$822
Austrian Airlines
Wed 9/2Sat 12/19
SOF - IAD • 1 stop
Cheapest one-way
$489
Multiple Airlines
Wed 8/26
SOF - IAD • 3 stops
Top airlines
Cheapest • from $632 (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 $642 (round-trip)
Shortest trip • 12h 40m (one-way)
Insights
Insights
Insights
Insights
When to travel
Cheapest • 26% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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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

Wed, Sep 2 - Sat, Dec 19
Austrian Airlines Logo
8:00 am - 2:00 pm
SOF
-
IAD
13h 00m
1 stop
Austrian Airlines Logo
6:10 pm - 6:00 pm
IAD
-
SOF
16h 50m
1 stop
$632Austrian Airlines
Fri, Aug 28 - Sun, Sep 13
Multiple Airlines Logo
5:00 am - 10:15 pm
SOF
-
IAD
24h 15m
3 stops
Multiple Airlines Logo
8:30 pm - 12:10 am
IAD
-
SOF
20h 40m
2 stops
$702Multiple Airlines
Thu, Sep 17 - Sat, Oct 3
Turkish Airlines Logo
3:50 pm - 11:30 am
SOF
-
IAD
26h 40m
1 stop
Turkish Airlines Logo
9:40 pm - 3:00 pm
IAD
-
SOF
34h 20m
1 stop
$760Turkish Airlines
Wed, Sep 9 - Tue, Sep 22
Turkish Airlines Logo
3:50 pm - 11:30 am
SOF
-
IAD
26h 40m
1 stop
Turkish Airlines Logo
9:40 pm - 3:00 pm
IAD
-
SOF
34h 20m
1 stop
$761Turkish Airlines
Mon, Sep 7 - Sun, Sep 20
Lufthansa Logo
6:20 am - 4:05 pm
SOF
-
IAD
16h 45m
1 stop
Lufthansa Logo
5:55 pm - 11:00 pm
IAD
-
SOF
22h 05m
1 stop
$767Lufthansa
Fri, Sep 11 - Sun, Sep 27
Lufthansa Logo
6:20 am - 4:05 pm
SOF
-
IAD
16h 45m
1 stop
Lufthansa Logo
10:20 pm - 11:15 pm
IAD
-
SOF
17h 55m
1 stop
$767Lufthansa
Fri, Aug 28 - Sun, Sep 13
SWISS Logo
3:50 pm - 4:45 pm
SOF
-
IAD
31h 55m
1 stop
SWISS Logo
8:20 pm - 2:55 pm
IAD
-
SOF
11h 35m
1 stop
$767SWISS
Mon, Sep 7 - Wed, Sep 23
United Airlines Logo
6:20 am - 4:05 pm
SOF
-
IAD
16h 45m
1 stop
United Airlines Logo
10:20 pm - 11:15 pm
IAD
-
SOF
17h 55m
1 stop
$780United Airlines
Wed, Sep 9 - Tue, Sep 22
United Airlines Logo
6:20 am - 4:05 pm
SOF
-
IAD
16h 45m
1 stop
United Airlines Logo
1:05 pm - 11:15 pm
IAD
-
SOF
27h 10m
2 stops
$780United Airlines
Thu, Oct 8 - Mon, Oct 19
SWISS Logo
11:05 am - 4:45 pm
SOF
-
IAD
12h 40m
1 stop
SWISS Logo
6:35 pm - 10:20 am
IAD
-
SOF
32h 45m
2 stops
$804SWISS
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.

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 March, where tickets cost $564 (return) on average. On the other hand, the most expensive months are May and July, where the average cost of round-trip tickets is $1,001 and $943 respectively.

Good to know

Low season

February

Cheapest flight

$489
Best time to beat the crowds with an average 17% drop in price.
Most popular time to fly and prices are also 8% lower on average.
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 5 days, the lowest price for a flight from Sofia to Washington, D.C. Dulles Intl Airport was $489 for a one-way ticket and $632 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 Air France?

    The two airlines most popular with KAYAK users for flights from Sofia to Washington, D.C. are KLM and Air France. With an average price for the route of $610 and an overall rating of 7.8, KLM is the most popular choice. Air France is also a great choice for the route, with an average price of $673 and an overall rating of 7.5.

  • 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 1551 reviews
7.2Entertainment
7.7Comfort
7.8Boarding
7.3Food
8.4Crew
Airline reviews

I think I previously submitted my feedback about flight lead Katherine in a different field by mistake. Please see those comments. Comments for Hyd to AMS are it was good. The flight lead and service met expectations for satisfactory high quality service but the flight lead did not stand out as exceptional as did the leads on the other two flights so I don’t remember anything specific one way or the other besides the fact I was satisfied.

10.0 ExcellentEmily, Jul 2026
ORD - MSP
Read more KLM reviews

I think I previously submitted my feedback about flight lead Katherine in a different field by mistake. Please see those comments. Comments for Hyd to AMS are it was good. The flight lead and service met expectations for satisfactory high quality service but the flight lead did not stand out as exceptional as did the leads on the other two flights so I don’t remember anything specific one way or the other besides the fact I was satisfied.

Flight lead was a gentleman with silver hair and he went out of his way to shake hands and interact with each passenger seated in business class. A medical emergency took place during our flight and he handled it with perfect poise and professionalism. He was gracious and confidently competent. Just what you want from a leader,

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

KLM remains a quality flag carrier airline which maintains its standards whilst all their competitors are lowering theirs.

Legroom not all it could be, especially when the seat in front is reclined. Otherwise it was good, food and beverage were nice.

This fight left ahead of time which meant it arrived early which was great. Staff were very professional, but as with all these Short hop Flights the food was a disappointing snack There was no entertainment on this flight, but I did not expect any

I flew premium economy and this was a good option. Although the seats didn’t recline much, I was able to get some sleep with my head propped against the window. The food was good and the entertainment was wonderful The staff were very attentive and professional

Seats were nice and comfy. Crew was polite and attentive. Business class is awesome and worth the money.

It was operated by Delta. Boarding took a long time. How difficult can it be? Overall decent trip. Liked the Salt Lake City airport. Better option than Chicago for transfers.

We left one hour late because of technical difficulties. The economy comfort seats are great for the price. The crew was mediocre, they do not provide a pleasant experience, they just deliver food and drinks and give orders, not very amicable, no service and hospitality focus.

Middle seats SUCK!!!! I paid more money than I should have because of your terrible site Kayak.com. I'll try to use your competitors going forward. I am so disappointed you would play off business class.com as business class seats

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

The plane was old Only 3 bathrooms available for economy The entertainment was old and the selection was poor

Boarding was a disaster being moved by Air France by bus to the plane. The plane should have been at the right gate.

Flight was late over a hour just like the first one. WiFi was down.

The check in was horrible. I stood in line for 1 hour to check in with an Air France ticket. Then I was told I had to go to Delta counter onstead to check in instead. It made no sense.

Medíocre. The food wasn't good (although not bad, bad) and the staff wasn't kind. I asked for n extra blanket, the steward never came back, serving us roughly.

They wanted to close counter although they did not provide the wheelchair requested which ended by going alone to transit security and lost long time and they did not want to wait .

They charge me for luggage which is was included on the ticket

Lost luggage, 2 bags were badly damaged and one of the bags came open.

The sleeper seats, the staff, and the food was truly delicious. I loved the mocktail options.

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

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

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

The airport staff never announced that boarding has started. Both at iad or Islamabad or Istanbul.

The airline could improve its business class seats and privacy in line with its competitors.

The seats have to be one of the worst when it comes to comfort and you have to scramble around to out your handbag in the overhead. The food is still awful. Definitely will not travel on Turkish again and wouldn’t recommend it to anyone for sure.

Very happy with the service, comfort, and food on Turkish Airlines. Security and check in was great.

Movie selection was ok, but could be better. Would like to see greater selection of newer movies.

Loved the check-in experience. Very friendly staff and not crowded. I did wind up with a middle-middle seat, which was quite uncomfortable. Always appreciate the very professional staff on TAL.

What would be infinitely better if for Kayak to not offer this flight as if it was completely different airlines rather than United and then filtering me through some creepy discount site.

Our flight was great with an unexpected upgrade. However, four days into our travel we are still without a piece of luggage. The bag tracker has not been accurate, the airline is not communicating with me or the luggage delivery service and no one is willing to take responsibility or guarantee any kind of support or reimbursement. Unfortunately, we do not have the option to easily shop to replace items as we are currently on a cruise. I have been very disappointed by United Airlines response.

The flight was canceled. I couldn't get on another flight. Meal voucher wouldn't work. The whole experience was a clusterfuck.

It was terribly delayed with zero support from united airlines. I reached at 1 am in the night. They did not provide any option to change the flights.

Flight was delayed 14 hours due to DC air show and weather. Missed connection to MUC.

Horrible I am at almost 2,000,000 miles on United. This was probably the worst flight ever. An hour and a half before takeoff I get a message that they’re changing the plane and I no longer have a seat in Polaris business Supposedly, there was a problem with the plane, but then there was no other plane Finally, they decided to bring a plane from Newark to Washington Dulles Of course the original flight was at 10:45 PM so by the time the plane got there it was 12:30 AM. It had not been cleaned. It had not been catered. They don’t really have people available to do those things when it’s not pre-programmed at 1 o’clock in the morning. The crew had to be changed And the new plane held 28 fewer people than the scheduled plane There is no way you can hate United Airlines enough The people at the gate were actually just fine, but it was management who was completely useless And did they send extra help to the people at the gate? Did they send supervisors? Of course not. Just don’t take United find somebody else or buy a boat

Flight attendants were great. Food mediocre. Bamboo utensils not Great especially if you have to cut something. Seating a bit crowded.

The crew was the worst ive ever had in my life flying with United Airlines, letting another person move my bag without asking and then the staff saying would the floor be better after I kept begging saying dont move my bag it has fragile things inside. This incident truly makes me they favor other customers more and I dont want to worry about being on the tail end. Especially if they dont listen any input, no care for what I asked but accommodated those who are reckless and disturb others more...

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.

MY FAMILY'S LUGGAGE WAS LOST FROM ROME TO BARI. I WAS THE ONLY ONE THAT RECEIVED MY LUGGAGE FROM ROME TO BARI. AFTER DEPLANING IN BARI, WE WASTED A LOT OF TIME AT BAG CLAIMS LOST AND FOUND REPORTING THE CLAIM AND PLEADING FOR THE BAGS TO BE DELIVERED THE NEXT DAY. WE WERE TOLD THAT IT TAKES 3 DAYS MINIMUM TO DELIVER. MY DAUGHTER AND MY GIRLFRIEND NEEDED THEIR PERSONAL THINGS AND WE WERE STAYING 3 HOURS AWAY FROM THE BARI AIRPORT. WE HAD TO DRIVE 3 HOURS TO THE AIRPORT TO COLLECT OUR LOST LUGGAGE THE NEXT DAY. WE ARE NOT HAPPY WITH THE EXPERIENCE

Cancelled 90 min AFTER Departure! We had to deplane and wait another hour plus for the flight to be shown as cancelled for the customer service team. There were many many angry customers.

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.

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

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