SOF - IAD

$519 Find Cheap Flights from Sofia to Washington, D.C.

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Sofia to Dulles Intl departing on 9/17. 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.
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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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Cheap Flight Deals from Sofia to Washington, D.C. (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 Washington, D.C. 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.

Recent round-trip flight deals from Sofia to Dulles Intl

KAYAK's recommended round-trip deals from the most popular airlines that fly from Sofia to Dulles Intl.
Discover the best prices for you by selecting your travel dates on KAYAK.
 Logo
7:00 am - 3:35 pmSOF-IAD
15h 35m1 stop
 Logo
6:30 pm - 2:00 pmIAD-SOF
12h 30m1 stop
Wed, Sep 17 - Thu, Oct 16
KLM Logo
7:00 am - 3:35 pmSOF-IAD
15h 35m1 stop
KLM Logo
5:35 pm - 2:00 pmIAD-SOF
13h 25m1 stop
$525KLM
Find Deal
Thu, Oct 16 - Sat, Nov 8
Air France Logo
7:00 am - 7:15 pmSOF-IAD
19h 15m1 stop
Air France Logo
6:30 pm - 2:00 pmIAD-SOF
12h 30m1 stop
$576Air France
Find Deal
Wed, Jun 11 - Wed, Jul 16
Air France Logo
7:00 am - 4:20 pmSOF-IAD
16h 20m1 stop
Air France Logo
6:30 pm - 2:00 pmIAD-SOF
12h 30m1 stop
$577Air France
Find Deal
Sun, Jul 27 - Sun, Aug 17
United Airlines Logo
6:15 am - 9:05 pmSOF-IAD
21h 50m2 stops
United Airlines Logo
5:40 pm - 12:00 pmIAD-SOF
11h 20m1 stop
$617United Airlines
Find Deal
Wed, Sep 17 - Sat, Oct 18
United Airlines Logo
6:15 am - 9:05 pmSOF-IAD
21h 50m2 stops
United Airlines Logo
5:25 pm - 11:40 amIAD-SOF
11h 15m1 stop
$622United Airlines
Find Deal
Wed, Sep 17 - Mon, Oct 13
Lufthansa Logo
6:00 am - 3:20 pmSOF-IAD
16h 20m1 stop
Lufthansa Logo
10:20 pm - 11:00 pmIAD-SOF
17h 40m1 stop
$640Lufthansa
Find Deal
Mon, Jul 7 - Fri, Sep 12
Lufthansa Logo
12:00 pm - 8:05 pmSOF-IAD
15h 05m1 stop
Lufthansa Logo
6:10 pm - 10:50 pmIAD-SOF
21h 40m1 stop
$643Lufthansa
Find Deal
Thu, Jul 10 - Sun, Sep 14
Turkish Airlines Logo
9:15 pm - 7:45 pmSOF-IAD
29h 30m1 stop
Turkish Airlines Logo
1:30 pm - 2:45 pmIAD-SOF
18h 15m1 stop
$681Turkish Airlines
Find Deal
Thu, Jun 12 - Fri, Jul 18
Turkish Airlines Logo
3:35 pm - 11:45 amSOF-IAD
27h 10m1 stop
Turkish Airlines Logo
1:30 pm - 2:45 pmIAD-SOF
18h 15m1 stop
$696Turkish Airlines
Find Deal
Sat, Jun 14 - Fri, Jul 18
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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’s the cheapest day of the week to fly from Sofia to Washington, D.C.?

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

If your flying dates are flexible, you should consider flying to Washington, D.C. on a Wednesday, as we generally find the cheapest rates on that day for this route. On the other hand, Friday is the most expensive day to fly from Sofia to Washington, D.C.. For your return ticket, we recommend flying on a Wednesday and avoiding Saturdays for the best deals.

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 November, where tickets cost $579 (return) on average. On the other hand, the most expensive months are December and September, where the average cost of round-trip tickets is $942 and $861 respectively.

How far in advance should I book a flight from Sofia to Washington, D.C. Dulles Intl Airport?

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 Washington, D.C. Dulles Intl Airport, 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 Washington, D.C. Dulles Intl Airport, you should book around 3 weeks before departure. For the absolute cheapest price, our data suggests you should book 26 weeks before departure.

Good to know

Low seasonJune
High seasonAugust
Cheapest flight$519
Best time to beat the crowds with an average 6% drop in price.
Most popular time to fly with an average 11% 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 $572 for a one-way ticket and $519 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.?

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

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

    The two airlines most popular with KAYAK users for flights from Sofia to Washington, D.C. are United Airlines and Turkish Airlines. With an average price for the route of $659 and an overall rating of 7.4, United Airlines is the most popular choice. Turkish Airlines is also a great choice for the route, with an average price of $665 and an overall rating of 7.3.

  • 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.

Top 3 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.
7.4
United AirlinesOverall score based on 8696 reviews
7.7Boarding
6.6Food
7.3Comfort
7.1Entertainment
8.1Crew
Airline reviews

Mostly the experience was good except for the flight changes made by UA which meant longer layover in DC

10.0 ExcellentAnonymous, Mar 2025GUA - IAD
Read more United Airlines reviews

Mostly the experience was good except for the flight changes made by UA which meant longer layover in DC

Terrible. First of all we were delayed 4 3/4 hours departing Honolulu. As we had to leave our condo and the rental car had to be returned we had to go to the airport. Even though we had a business class boarding pass to Washington, since we did not have business class to Montreal we could not access the lounge without paying a $59 fee each. This does not make sense to us. Since we could not meet our original connection United booked us to Montreal via New York LaGuardia on Air Canada. In Washington a further delay got us into LaGuardia too late to make our connection to Montreal so we were booked on another Air Canada flight 3 hours later. We were originally scheduled to arrive in Montreal at 10:40 and arrived at 19:55. A totally exhausting day, United did not offer a meal voucher or any type of compensation. Air Canada did give us a digital meal voucher. The food in United business class is poor among all meals offered. The pods look nice but are not that confortable. Overall would not fly on United again.

Change cabin crew assisting business class. Not taking care, ignoring requests and calls. Never had such an experience in business class.

United left one of our bags back in SFO but that’s not my real complaint. The complaint is how it all went down. So we checked in the day before online and were told we could use the quick drop for luggage. So the next day I used baggage quick drop curbside at SFO. The agent mistakenly didn't tag my bag as he put my bag on the conveyor belt untagged. We immediately alerted him he had not tagged the bag. I walked with him to the baggage service office to find my bag and tag it. We waited outside the office for 10 mins. He came out and said everything was ok and the bag was going to be tagged and on my flight. We received a text that one of our bags was on the flight but the other was not. I alerted my first class flight attendant immediately upon boarding the flight. She was helpful and said she’d get it sorted out right away. She called over the gate agent. The gate agent used my bag number and looked over information on her device. She said my bag was on the flight. The flight attendant was standing with her, looking at the device, and also said “yep it’s on the flight”. During the flight the flight attendant made reference to how reassuring it must feel knowing the bag was on the flight. Upon arriving to IAD we received a text that my bag was not on my flight. The text said my bag would arrive to my final destination LIS 24 hrs late. I understand that mistakes happen. I was totally ok with my bag mistakenly not getting tagged at the quick drop. I was fine with walking down to baggage services to tag my bag. But, what I am not ok with is that the United staff said they fixed the mistake two different times, assuring me twice that my bag would be/was on the plane…and it wasn’t. I expected better attention by the employees, for them to do what they said they were going to do. We also spent extra money to upgrade our seats to first class, including the entire return leg from Lisbon to San Francisco because we wanted a smoother and more relaxing travel experience. Our money was not well spent. We will not be using United for travel going forward.

The flight was delayed, it took longer than anticipated because of weather, and they broke my luggage.

Horrifying! And I am almost 2 million miles with United. Late by 3 1/2 hours. Worst: after two hours on the plane waiting, they decided that one of the tires had been damaged and then decided to change it. Another hour and a half to change the tire!!!!! NO EXCUSE FOR THIS. The crew didn't even offer a glass of water until we had been on the plane for FIVE hours. This is the worst airline in the world. I'm simply stuck because they fly on the only routes I need.

Gate got changed about 4 times. Very confusing and very crowded. If you don’t have wifi to help get updates, you can be in deep trouble.

Attendants zipped through cabin so fast hardly anyone got the water they told us we could have in the short flight. Nothing else was offered.

Sucks ! All three flights I was on this trip were delayed.

The flight attendants were unhelpful. It was a packed flight, and usually a flight attendant would help find a spot in the bin for your carry on or shift things around. Neither made any effort to do so. Also, I had to then check my bag. I was told it would be on the carousel in YYZ, but it came up on the jetway. So lucky I saw others standing around for their bags. I would have walked straight past this and on to the carousel. They could have at least told me that they had given me wrong information. Very unsatisfactory.

The check in process at Istanbul airport caused my family a great deal of stress and disappointment due to the following factors: 1) WE HAD TO PAY US$330 for check on bags, despite holding Economy tickets that Turkish airlines website clearly states that flights from Istanbul to Miami had a 2 checked bags allowance. 2) Airport staff not only lacked empathy for senior travelers (75 yrs old and 71 yrs old), but were also rude as well. The supervisor at check it offered "if you don't pay for the bags, you can just remain and sleep at the airport for however long you wish. What a terrible way to treat customers !!! 3) We were bumped from agent to agent to agent FIVE times, showing everyone the communication we received telling us we had the 2 bags entitlement. Two elderly people lugging 4 suitcase around and around the Turkish terminal. Again, what a sad way to treat customers !!! 4) We need a case opened to get a refund for the amount we paid. Something is amiss, screams unethical, and sounds unscrupulous......At First , we were told we must pay for 4 bags. All of a sudden, it became 2 bags, and finally all 4 bags were checked on with payments demanded for 2. Why did it vary from agent to agent???? 5) OVERALL, A TERRIBLE AND SUSPICIOUSLLY UNSCRUPULOUS EXPERIENCE FLYING WITH TURKISH AIRLINES. WE ARE TERRIBLY DISAPPOINTED AND SAD THAT OUR VISIT TO A BEAUTIFUL CITY ENDED IN SUCH A HORRIBLE EXPERIENCE

I recently flew with Turkish Airlines, and I can confidently say it was one of the best travel experiences I’ve ever had. From the moment I boarded, the crew was incredibly attentive, warm, and professional. They went above and beyond to ensure everyone was comfortable and well taken care of throughout the flight. The highlight, however, was the food! I’ve flown with many airlines, but Turkish Airlines sets the bar incredibly high when it comes to in-flight dining. Every meal was fresh, flavorful, and beautifully presented. The variety of dishes, even on a long-haul flight, was impressive. It felt like dining at a high-end restaurant at 35,000 feet! The seats were comfortable, the entertainment options were great, and the overall atmosphere made the journey enjoyable. Turkish Airlines truly excels in combining luxury and hospitality. I wouldn’t hesitate to fly with them again—highly recommend!

One of the best flights I have been on in a while.

Here's a sample answer: "Honestly, I was really impressed with Turkish Airlines, but if I had to suggest one area for improvement, it would be: - *More efficient boarding process*: I noticed that boarding took a bit longer than expected, which might be frustrating for passengers with tight connections.

Not worth pay business class and get service economy class

In this long haul flight, flight attendants never stopped moving and giving excellent service. Very impressive. Very comfortable seats and excellent food

In sharp contrast to the modern glitzy airport, boarding facilities were primitive. Passengers had to board buses and walk up steep stairs in bitter cold with carry-on baggages. I found no reason why aerobridge was not provided.

Service and food were decent, seats are a bit too narrow. Leg room is normal. Bathroom should be cleaned more frequently. WiFi is cumbersome and should be simplified.

they have cancell the flight with no reasons, My parents were in the cold weather in the airport for 24 hours they did not give any hotel and food. I hate Turkish Airline, this is our last time that we ha ve chosen Turkish Airline.

Same as before boarding process and lack of crew experience in the process

They gave us chocolates twice (for whoever would like an extra chocolate - kids did!). I asked for an extra water, and I was given one. Crew was very friendly!

The plane was very clean. The bathroom was clean as well. The land crew were very polite and informative and helpful. They informed me that there is a long way and challenging to go from international terminal to national terminal and in addition to getting my suitcases and going through customs and dropping them again for my second leg of trip which was San Francisco to Los Angeles . I have left knee issue and had a recent fall with aching muscles all over, the land crew suggested wheelchair help for me, God bless her. If I did not have help, I could not make it to my last terminal. Thank you UNITED AIRLINE!

I like the service and the efficiency. I am lactose intolerant and the lactose intolerant meal in business class was not astounding. Also, the business class fully reclining seats are not that comfortable.

Food was great but they didn't clear my meal tray for 3 hours. You'd think they could check though the cabin now and then.

Upon arriving at IAH, it was informed that the luggage had not arrived. Still waiting to hear back when it will be delivered.

I wasn’t allowed to board with my children. I was charged outrageous costs for basic carry on size luggage. The entertainment screens were outdated and not user friendly.

I was very happy with everything, thank you for the smooth flight ✈️

helpful and friendly. The Lufthanza people I dealt with before my holiday were so unhelpful by comparison.

I enjoyed my flight back with Lufthansa because the food was good, and the flight attendants were nice and helped you when you asked a question. The flight attendants always came around and asked if you needed anything which I liked a lot.

Entertainment system is old. Food can be tastier Need to provide toothbrush and toothpaste at least when asked.

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