WAS - SOF

$295 Find Cheap Flights from Washington, D.C. to Sofia - 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 Washington, D.C. to Sofia departing on 10/14. 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

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Everything you should know

Cheapest round-trip
$705
Typical prices: $677-$850
Turkish Airlines
Thu 10/29Thu 11/12
IAD - SOF • 1 stop
Cheapest one-way
$295
Typical prices: $480-$522
Multiple Airlines
Wed 10/14
IAD - SOF • 2 stops
Top airlines
Cheapest • from $705 (round-trip)
Best reviews • 7.6 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Washington, D.C. and Sofia. You'll need at least 1 connection.
Insights
Insights
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Insights
Top layover airports
Cheapest • Avg $606 (round-trip)
Shortest trip • 11h 23m (one-way)
Insights
Insights
Insights
Insights
When to book
in advance
Our data shows that travelers who book at least 3 weeks in advance save around 49% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 11% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
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Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Washington, D.C. to Sofia (WAS-SOF)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Washington, D.C. to Sofia 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 Washington, D.C. to Sofia

Thu, Oct 29 - Thu, Nov 12
Turkish Airlines Logo
2:30 pm - 8:55 pm
IAD
-
SOF
24h 25m
1 stop
Turkish Airlines Logo
9:45 pm - 7:25 pm
SOF
-
IAD
28h 40m
1 stop
$705Turkish Airlines
Wed, Dec 2 - Wed, Dec 16
Multiple Airlines Logo
8:10 pm - 3:15 pm
IAD
-
SOF
12h 05m
1 stop
Multiple Airlines Logo
6:25 am - 8:23 pm
SOF
-
IAD
20h 58m
2 stops
$716Multiple Airlines
Thu, Oct 1 - Thu, Oct 15
Multiple Airlines Logo
8:20 pm - 2:15 pm
IAD
-
SOF
34h 55m
3 stops
Multiple Airlines Logo
4:00 pm - 5:00 pm
SOF
-
IAD
32h 00m
3 stops
$718Multiple Airlines
Tue, Nov 3 - Tue, Nov 17
Lufthansa Logo
10:55 pm - 6:20 pm
IAD
-
SOF
12h 25m
1 stop
Lufthansa Logo
6:25 am - 3:55 pm
SOF
-
IAD
16h 30m
1 stop
$721Lufthansa
Sun, Nov 1 - Mon, Nov 9
British Airways Logo
8:35 pm - 4:20 pm
BWI
-
SOF
12h 45m
1 stop
British Airways Logo
5:15 pm - 6:45 pm
SOF
-
BWI
32h 30m
1 stop
$739British Airways
Wed, Oct 28 - Wed, Nov 11
Air Canada Logo
11:05 am - 6:20 pm
DCA
-
SOF
25h 15m
2 stops
Air Canada Logo
2:00 pm - 9:59 pm
SOF
-
DCA
14h 59m
2 stops
$744Air Canada
Mon, Nov 2 - Tue, Nov 10
United Airlines Logo
8:00 pm - 6:20 pm
DCA
-
SOF
15h 20m
2 stops
United Airlines Logo
6:25 am - 5:48 pm
SOF
-
DCA
18h 23m
2 stops
$750United Airlines
Tue, Dec 1 - Tue, Dec 15
Air Canada Logo
11:05 am - 6:10 pm
DCA
-
SOF
24h 05m
2 stops
Air Canada Logo
6:25 am - 9:59 pm
SOF
-
DCA
22h 34m
2 stops
$754Air Canada
Mon, Nov 2 - Mon, Nov 16
British Airways Logo
8:35 pm - 8:10 pm
DCA
-
SOF
40h 35m
2 stops
British Airways Logo
5:15 pm - 4:51 pm
SOF
-
DCA
30h 36m
2 stops
$759British Airways
Wed, Oct 7 - Wed, Oct 21
United Airlines Logo
1:00 pm - 12:10 pm
DCA
-
SOF
16h 10m
2 stops
United Airlines Logo
6:20 am - 6:15 pm
SOF
-
DCA
18h 55m
2 stops
$779United Airlines
Booking Insights

KAYAK's insights & trends for Washington, D.C. to Sofia flights

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

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

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

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Washington, D.C. to Sofia, 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 Washington, D.C. to Sofia is March, where tickets cost $465 (return) on average. On the other hand, the most expensive months are May and September, where the average cost of round-trip tickets is $586 and $547 respectively.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Washington, D.C. to Sofia, 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 Washington, D.C. to Sofia, you should book around 3 weeks before departure, which saves you about 49% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 25 weeks before departure.

Good to know

Low seasonFebruary
Cheapest flight$295
Best time to beat the crowds with an average 1% drop in price.
Most popular time to fly with an average 22% increase in price.
Flight from Washington Dulles Airport to Sofia

When to book flights from Washington, D.C. to Sofia

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

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

    In the last 5 days, the lowest price for a flight from Washington, D.C. to Sofia was $295 for a one-way ticket and $705 for a round-trip.

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

    Yes

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

    Washington, D.C. is served by 2 major airports and there is only 1 main airport in Sofia. You will leave Washington, D.C. from one of these airports: Washington, D.C. Reagan-National or Washington, D.C. Dulles Intl. You will be arriving at Sofia.

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

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

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

    Star Alliance is the only airline alliance operating flights between Washington, D.C. and Sofia.

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

    The two airlines most popular with KAYAK users for flights from Washington, D.C. to Sofia are Austrian Airlines and Turkish Airlines. With an average price for the route of $879 and an overall rating of 7.6, Austrian Airlines is the most popular choice. Turkish Airlines is also a great choice for the route, with an average price of $680 and an overall rating of 7.4.

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

    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 Washington, D.C. to Sofia.

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

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

    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 Sofia with an airline and back to Washington, D.C. with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Washington, D.C. to Sofia?

    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 Sofia from Washington, D.C. 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 Washington, D.C. to Sofia

 
See real verified KAYAK customer reviews for airlines flying from Washington, D.C. to Sofia. 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 Washington, D.C. to Sofia? 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.
7.6
Austrian AirlinesOverall score based on 938 reviews
7.6Boarding
7.3Comfort
8.1Crew
6.8Food
6.8Entertainment
Airline reviews

I am very satisfied for choosing that Airlines! It was my first time but the everything went smoothly! Thank you!

10.0 ExcellentMaria, Jun 2026
BOS - VIE
Read more Austrian Airlines reviews

I am very satisfied for choosing that Airlines! It was my first time but the everything went smoothly! Thank you!

Flight delayed with no explanation. Boarding was confused (proceed to plane, go back to waiting area).

Last few years I didn't not have great experience with United Airlines.

Booked economy. Seat felt like it was a bit more roomy than my last trans Atlantic flights. I had a nice person sitting next to me. Everything was as good as it could be considering you are 35,000 feet up in the air and in a metal container. Beers, wine, food were all readily available. Plenty of movies and shows to watch. Friendly flight staff

We were delayed three hours from Montenegro to Vienna on our outbound flight and then rebooked an extra leg on our trip to the US. Our bags, which Austrian made us check in in Montenegro even though the flight was barely half full, didn't find us for ten days. Then, when we asked for compensation for the delay we were given the runaround that the flight originated outside of the EU. Next time we fly Turkish Air.

WiFi would have been nice and some more powerful usb ports, available ports could not keep my phone’s charge much less charge the phone.

We have travelled on 13 December with Austrian Airlines from Yangon through Bangkok and Vienna to Varna. The first flight operated by Thai Airlines was nice and comfortable. I wouldn’t say the same thing about the next two flights which were operated directly by the Austrian Airlines. During our flight from Bangkok to Vienna:  > The service was very poor – serving of food and drinks was disorganized, late and not combined, the stewards were walking back and forth without doing anything substantial for the passengers. Even the morning breakfast was very late with a cup of coffee almost while landing (after a reminding).  > The food itself was OK-ish but for a 12-hour flight, there were no snacks/bites in between dinner and breakfast as it is with the other airlines.  > The cutlery was wooden, most probably recycling, but very unpleasant to eat with.  > The stewards were not rude but not friendly and/or helpful  > And also, half of the passengers had travel sets, others did not. The flight from Vienna to Varna was another surprise: firstly, the flight was late and secondly, they were serving only water free, even the coffee was paid, so were the snacks, but we had to pay to reserve seats. The whole experience is as if it was a low-cost airline. All in all, I wouldn’t recommend using the services of Austrian Airlines: the ticket prizes are quite the same as of the other carriers flying to this destination and you would have much pleasant time.

Pleasant up to Vienna. Afterward (Vienna- Zagreb) was an horrific experience

Management and staff att viena wasn’t professional,and they are not good by how to communicate and solve the problem, I was shocked , as I know Austrian airlines was amusing Thank you

The flight was late. We accommodated other missed flights, and the plane was full of people, without space to store carry-on luggage. They lost our checked luggage for the entire flight and delivered it after two days.

Staff at the airport wasn't helpful or friendly. Probably the worst airport experience I have ever had, going and coming. The staff on the plane was better. Still not super friendly or personable. However, they were not rude like airport staff. They ran out of certain menu items. Maybe could have been prepared better? Overall just ok.

the cabin was kept too hot. couldn't sleep as a result

Crew were unfriendly, touch screen for movies didn't work very well, seats were tight and uncomfortable

Awful seating. Bad food. Staff only have one bottle of water and no cans.

Worse worse worse, i would not recommend this airline to anyone. Istanbul airport maybe State of the Art facility but staff is rude, only works if they get tips, and they push you to give tips even though my family had spent $50 in tips. Airline staff doesn't speak english so you really can't understand them. It was a nightmare travelling with Turkish. Never again.

My flight was canceled 1 minute before boarding. The customer service was owful, no one could tell us what was going happened. I spent 30hrs instead of 15 from Washington DC to Brussels. No apologie or help

Boeing 777 is a bad choice for a such a long flight.

I wouldn't know what the flight was like. AI canceled my flight reservation!! There's no way to speak to an actual human to fix the issue! NEVER AGAIN! ALWAYS BOOK YOUR FLIGHT DIRECTLY WITH THE AIRLINE NEVER GO THROUGH KAYAK OR JUSTFLY.COM!!

I’ve been traveling for 20 years. I tried Turkish airline for the first time horrible horrible service and it would be my last time even if I get offer for a free ticket, I will not accept it. They have races and the worst Flight attendant

It wasn't good. I didn’t understand. They changed 320 dollars for 2 luggage. My ticket was regular and I paid almost 1200.00 dollars. Why they did charge? I want my money back.. thanks Yılmaz polat

Staff could’ve been a little more cordial. The men were much more friendlier than the women. My daughter and I also missed the 2nd to last meal as we were sleeping but that is on us.

Like: departed and arrived on time. Unlike: Food options for purchase allways bad, 1 of 2 of the crew members not very friendly at all. Seats and leg room aweful. At this point I am thinking on switching to AA.

Over 5 hour delay with minimal updates or ability to standby for alternative flights. During boarding and 1 hr+ wait for takeoff, seats were drenched w water from air conditioning condensation and always leftover crumbs on carpet and seats

Our flight was canceled same day and we were never informed. Had to pay more and worse seating on another airline.

Did not like that we couldn't complete check in on-line without providing pictures of our passports. Worry about identity theft. We had no delays and boarding was handled In an efficient manner.

Excellent! I got to Munich and was transferred to my Lufthansa flight quickly, in 15 to 20 minutes, so I did not miss my flight. However, I had checked my overhead bag at the boarding gate in Tampa. That got to Tunis the next day. That is to be expected.

WiFi didn’t exist , seats were super cramped, lights stayed on near my seat for a long time while others were dimmed, the food/trash/drink cart hit my shoulder at least a couple of times while moving, food options were down to just one option by the time it got to my row, the utensils were garbage (knife bent at a couple of places by the time I was done eating) the spoon was very flimsy plastic

Vegetarian selection could be better. Bread was too hard to chew.

Ridiculous boarding. Enter the gate, walk down a staircase with bags, exit a building, get on a crowded bus, dropped off a few meters away from the aircraft, walk with bags to another set of stairs to board the aircraft. And all that during a pouring down rain, and with children. Ridiculous!!!

Lufthansa no longer offers any refreshments and snacks on short i.e., around 2 hrs flight. We still had full staff stewards/stewardesses. No idea why they were needed as there was no work for them during the flight

Missed it by a couple minutes and couldn’t find an alternative flight so had to spend the night in DC and after much shuffling from 1 airline to another managed to get a United to Frankfurt.

There were only 2 toilets and one of them did not work in business class. We are not allowed to cross classes so had to wait in line to use the toilets!! The entertainment touch display was finicky and did not work all the time.

The flight and crew were good. The customer experience on the ground could have been better. We had to reschedule our flight because of a delay on the previous flight. The attendants working the desk in Washington DC were not helpful. They told us to scan a QR code and that would get us rebooked. Why couldn't two people standing at their computers do this? We had to chat with someone to get everything figured out. It was extremely confusing.

good entertainment package but rather small seats for business class

The male attendant has zero personality. It seemed like he was over worked or hated his job, not once did he smile or made any contact with the people on the plane. Strictly business and call it a day!

The agent, who took my mother to her gate, kept talking with one of her male coworkers and treating my mother like a sack of potatoes. She was ignoring my questions because she was too busy flirting with her male colleague. This was a very unprofessional behavior. We also had to wait for close to half an hour for an agent to arrive.

Very good flight, only problem is the boarding process where some peoples do not have manners and do not how to fly ( preparing your documents, oversized carry-ons, not understanding or feigning to not understand directives).

I really like it and travel to Europe and back with Lufthansa, but it is getting expensive, a bit beyond my me

Not available crew to load the luggage for all the passengers,comon situation for local European destinations , not acceptable situation, never Lufthansa again 😉 🙄

Flight was overbooked. Crew did a great job but passengers weren’t nice and really not patient. Flying in these times is not the best idea tbh.

Horrible… I was downgraded without notice, had to sit in economy and given my back injury was in pain most of the journey. I expect to be reimbursed for this inconvenience and after my return flight home, I never plan to fly with British Airways again.

I like the crew, very welcoming. Food can be better. The seat arms don’t go up so. I could use the empty seat next to mine to relax better. 3hrs delay 😠

I enjoyed the comfort of Premium Economy. The Purser on London-Nairobi was a little testy, snappish in his tone. I understand stressed, tired, etc but his tone in addressing passengers I found wanting.

The flight was delayed twice and because of that, we missed our connecting flight. British Airways then attempted to put us on the last flight to Milan from London which would have kept us in the airport for 12 hours. We had to speak to several levels of bureaucracy until BA management let us fly on a flight that only kept us in the airport for two hours. If there was an earlier flight, why weren’t we put on that flight from the start? Unacceptable behavior from what was once my favorite carrier.

everything to do with KAYAK was terrible. Your customer facing departments are utterly useless, timewasting and unhelpful.

The onboard service makes it extremely difficult and slow to go to the toilet

The boarding process was a disaster. No one respects the boarding groups—tired old aeroplane. There are no sockets to charge phones. The cushion seats are ancient and hurts back and gluts

Amazing crew - they were exceptionally nice. From ground staff to the plane

Small overcrowded flight with limited overhead storage bins. The last row 30 has no windows. The aircraft has no entertainment system. The flight is 3+ hrs and is not a low-cost, but the free snack is a laughable size: a SINGLE bite soft cake/pie.

The seats were quite uncomfortable. I felt like I was leaning forward the entire time, which was quite bad for my neck.

Everything you need to know for your flight from Washington, D.C. to Sofia

Information on your arrival and departure airports