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WAS - SOF

Find cheap flights from Washington, D.C. to Sofia from $415

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 5/29. 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
0 bags
א' 5/26
א' 6/2

Search hundreds of travel sites at once for deals on flights to Sofia

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Washington, D.C. to Sofia.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Washington, D.C. to Sofia.
In the last 7 days travelers have searched 44,979,812 times on KAYAK, and here is why:

Save 22% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Bundle and saveSave money when you bundle your flight + hotel.

Cheap flight deals 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 and deals for you by selecting your travel dates.
Choose your dates
7:45 pm - 8:25 pmDCA-SOF
17h 40m2 stops
5:25 pm - 4:20 pmSOF-DCA
29h 55m2 stops
$666British Airways
Find Deal
ב', אוק' 21 - ב', נוב' 4
9:50 pm - 8:20 pmIAD-SOF
15h 30m1 stop
9:10 pm - 2:45 pmSOF-IAD
24h 35m1 stop
$666Turkish Airlines
Find Deal
ב', ספט' 23 - ב', אוק' 7
6:06 am - 5:10 pmDCA-SOF
28h 04m2 stops
6:00 pm - 5:30 pmSOF-DCA
30h 30m2 stops
$724ITA Airways
Find Deal
ש', מאי 11 - א', מאי 19
4:30 pm - 5:10 pmIAD-SOF
17h 40m1 stop
6:00 pm - 2:40 pmSOF-IAD
27h 40m1 stop
$750ITA Airways
Find Deal
ה', אוג' 1 - ד', אוג' 21
5:20 pm - 12:10 pmIAD-SOF
11h 50m1 stop
12:55 pm - 10:18 pmSOF-IAD
16h 23m2 stops
$851United Airlines
Find Deal
ג', ספט' 10 - ג', ספט' 17
6:30 pm - 11:00 pmIAD-SOF
21h 30m2 stops
6:00 am - 9:21 pmSOF-IAD
22h 21m2 stops
$860United Airlines
Find Deal
ג', ספט' 10 - ג', ספט' 17
5:35 pm - 6:00 pmIAD-SOF
41h 25m2 stops
8:00 am - 2:35 pmSOF-IAD
13h 35m1 stop
$863Austrian Airlines
Find Deal
ש', אוג' 24 - ו', ספט' 13
5:33 pm - 6:00 pmIAD-SOF
41h 27m2 stops
4:05 pm - 3:58 pmSOF-IAD
54h 53m2 stops
$874Austrian Airlines
Find Deal
ש', אוג' 17 - ב', ספט' 9
10:20 pm - 6:45 pmIAD-SOF
13h 25m1 stop
6:00 am - 3:20 pmSOF-IAD
16h 20m2 stops
$894Lufthansa
Find Deal
א', אוג' 4 - ו', אוג' 23
10:20 pm - 11:00 pmIAD-SOF
41h 40m2 stops
12:55 pm - 7:25 pmSOF-IAD
13h 30m1 stop
$907Lufthansa
Find Deal
ש', אוג' 24 - ש', ספט' 7

Flights from Washington, D.C. to Sofia - Travel Insights & Trends

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.

What’s the cheapest day of the week to fly from Washington, D.C. to Sofia?

The average price of all flights from Washington, D.C. to Sofia clicked on KAYAK for each day over the last 12 months.
When flying from Washington, D.C. to Sofia, you should consider leaving on a Wednesday and avoid Sundays if you are looking for the best rates. For your return to Washington, D.C., you’ll find the best rates on Wednesdays and the most expensive ones on Saturdays.

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 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 January, where tickets cost $580 on average. On the other hand, the most expensive months are June and July, where the average cost of tickets is $1,441 and $1,428 respectively.

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

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for 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 month.
To get a below average price on the flight from Washington, D.C. to Sofia, you should book around 1 day before departure. For the absolute cheapest price, our data suggests you should book 1 day before departure.

Which airlines provide the cheapest flights from Washington, D.C. to Sofia?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
The best deals for a one-way ticket found by KAYAK users over the last 3 days were on Turkish Airlines ($481) and ITA Airways ($596). The cheapest round-trip tickets were found on Turkish Airlines ($666) and British Airways ($666).

Good to know

Low season

January

High season

July

Cheapest flight

$415
Best time to beat the crowds with an average 37% drop in price.
Most popular time to fly with an average 57% increase in price.
Flight from Baltimore 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 3 days, the lowest price for a flight from Washington, D.C. to Sofia was $415 for a one-way ticket and $666 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, SkyTeam, and oneworld are the airline alliances operating flights between Washington, D.C. and Sofia, with Star Alliance being the most commonly used for this route.

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

    The two airlines most popular with KAYAK users for flights from Washington, D.C. to Sofia are SWISS and Austrian Airlines. With an average price for the route of $1,073 and an overall rating of 7.8, SWISS is the most popular choice. Austrian Airlines is also a great choice for the route, with an average price of $1,095 and an overall rating of 7.5.

  • 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.

See more FAQs

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.
7.5
Austrian AirlinesOverall score based on 1087 reviews
7.5comfort
6.9food
7.6boarding
8.1crew
6.9entertainment
Airline reviews

The crew was attentive but not intrusive, and was always kind in every interaction.

10.0 ExcellentCraig, Apr 2024ORD - VIE
Read more about Austrian Airlines reviews

The crew was attentive but not intrusive, and was always kind in every interaction.

Austrian was not the issue. Kayak was terrible The flight was canceled. Frustrating but it can happen. The worst was Kayak's customer support around re-booking. I have chatted with a bot, than with a person who insisted the flight was still on as originally booked. while chatting i went on Austrian web page and told the kayak chat lady that the flight is shown as cancelled. She said she will escalate this and that someone will contact me within the hour. When I have asked her to give me the details of the flight she sees, She gave me the general A to B and return B to A. Totally unhelpful. After two hours I contacted them again, They were still saying the original flight is as scheduled and when I explained again I was told I will be contacted within 2-6 hours. NO ONE CONTACTED ME EVER SINCE! I have than contacted Austrian directly and was rebooked on a difficult flight. Kayak continued to send me irrelevant updates about my original flight. Terrible customer service at time of need.

Austrian airline they cancel my fight , and the couldn’t give me flight , they said only available flight 4th and after , I sacked for refund, even from you KYAK , and tell now no any refund , because what happened I lost more money because I have to stay in hotel and then I buy new ticket

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

I bought the ticket a month before my flight but checked in couple hours before my flight and had to wait seat assignment just before take off. On top of that there was not enough room in the overhead bin for my luggage.

The baggage arrived damaged and i spent EUR 300 on the baggage a month ago. No responsibility from airline or the handles.

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.

I am Star Alliance Gold which meant nothing at security as my partner, who was on the same ticket, couldn’t come through with me which meant I had to wait for 20 minutes for him to join me. For a hub airport the lounge was small and uninspiring. We told staff of our security experience and they informed us it was like this for everyone. Isn’t this is an Austrian Airlines hub? Boarding was a nightmare as there was only one person at the gate and again, I had to go through without my partner. The boarding was supposed to be in groups but a bunch of travellers with lower groups were crowding the entry level. After I managed to get through I found myself on a bus waiting with 3 others for 15 minutes as the checkin had failed. Then only to find everyone else coming onto the same bus. My partner and friends actually beat me onboard. The crew were young and unable to control the crowd allowing people to stand in the rain instead of getting people to their seats promptly. During flight we were only offered a cup of water & a chocolate. Not impressed with Austrian Airlines or their Vienna hub airport and plan not to use them again if I can help it!

The restrictions regarding carry-on baggage is too strict. My wife was forced to check her carry-on bag. Never had this on other airlines.

Very efficient and profesional .One of the best. I had 20 minutes between 2 flights and still made it amazing.

Nothing really was great as such. Seen other no name airlines perform better.

Quality of service on board was very inconsistent. FA service primarily seemed robotic and they barely engaged with passengers

I’m unclear why I had to pay extra for assigned seats as Turkish airlines did not honor the seating. We were placed across the aisle from each other on TK 34, and were seated behind one another on TK 694. Because my name was misspelled on e-ticket (Klawiter, instead of Klawitter) I could not log onto website to get the connection gate number in Istanbul. The monitors in the airport were a jumbled mess 1/2 Arabic and 1/2 English.

On line check in needs a lot of improvement. I tried and gave up.

Food not good, flight attendants not the best, not accommodating very ruff

the female flight attendant was racist towards me. I could tell she treated the two other passengers next to me with more softness.

Oh my god! For an13 hour flight they serve you food just one time. Also don’t be thirsty they give you a little small cup of soda to drink. They seem like their goal is to feed you one so they don’t have to be bothered with you. It quite surprise for such a long flight there are several times to eat at least three and the food was well lackluster. The food and lack of offering drinks which were always hot no ice provided.

We were traveling first class. Checkin counter lady and her manager, both were in bad mood and did not treat us well about checking in the handbag. The gate agent took care of it right away. I travel Turkish twice a year in first class. No one has ever refused to check in the hand bag. Not sure, why this agent and her manager refused. Everything else was excellent.

The 787 economy was a disaster for long haul. The space was too little compared to 777 or 747. Also the extremely low tray table behind the seat made any dining effort a nightmare. However, the movies were up to date, and the food taste was good, despite of terrible serving process caused by small space.

A little bit more comfort. It’s tight space around the seats. But all else is great and a smooth flight!

they made me check my carryon. There was space in the overhead bins.

The plane was delayed 2 hours. The wifi did not work. The seat in first class was not comfortable because the bottom felt like it lost all of its padding. And I did not like when the flight attendant made me wait at my seat to use the bathroom and didn't tell me why. If there were too many people using the 1st Class bathroom, she should have told me to go in the back, coach bathrooms. I guess I have to feel fortunate that they found 2 local pilots to still fly the plane tonight after the original pilots ended up at an airport 60 miles away due to high winds.

The crew were really great, but the 4 hour delay in small chunks was the worst.

Every experience was good except for the lack of comfort in those economy seats. I never had knee pain until that flight. Those seats are uncomfortable.

I bought internet for the flight. Don’t waste your money. I wasn’t able to download a 1 Mb file from Google Docs during a 3-4 hr period. You can only use WhatsApp and email if you are willing to wait.

Just a crappy airline. The same every time. You feel you are a cow on a farm. You are being being whipped and pulled.

Wasn’t very crowded. Seamless processes. No issues traveling with two little kids.

Kayak, the site I went through to book our flight, sent very unclear emails about flight changes. Kayak was incredibly unhelpful in their communications with me about this, promising to work on resolving the issue, and failing to do so. As a result, I needed to get a hotel in Brussels and am now in the process of trying to get reimbursed. On the other hand, the flight personnel in Brussels were very helpful, taking time to look into the issue and determine if they could help. I am very grateful for them and have no problems with the airline. For Kayak, however, I will never use it again and will never recommend it to anyone, and will even discourage people who consider going through that site. My worst experience ever....

My interaction with the flight attendent Eve was horrible. I was seated in 3F and was blown away watching her repeatedly skip me as she took other customer orders for lunch...she took the customer next to me but skipped me, then took everyone's order around me (in front of and behind me) . After she had taken every customer's orders to include those behind me, she came to me and said we are out of everything except one last item. I was mortified, in that, I am a 1k flyer, had pre-ordered AND as an African American could only assume why she repeatedly skipped me...mortified. no words

The Flight was good, pilot seemed very skillful. My wheel chair sister who could barely walk was allotted the second last seat in the aircraft, with great difficulty she managed to reach on her seat, as she required attendance we were given separate seat, even on request no one cared, so much so there were single passengers who were given twin seats. May not be taken as complaint but a reminder to the checkin staff to keep in mind in future the allottment of wheel chair passengers seats.

Horrible experience. Nothing to give to kids to keep them entertained.

I think I have bruises on my kneecaps. Do the seats have to be so close together these days? And if they are so close they really shouldn’t recline. I think when the gentleman in front of me reclined, the back of his head was on my chin. That being said the crew were always caring and polite, and the flight was on time and very safe. So I’m grateful for that.

I always try to book flights that don’t charge for baggage. Yet I was charged $75 for this flight.

Trouble keeps changing the time and I was booked different flight without knowing it was bad experience

I dropped my wallet under my seat on this flight with all of my money and credit card. I requested to be able to go back and retrieve it but Lufthansa denied my request. I went to the Customer Services and they called Lost and Found but I was told nothing found would be turned in until around 12:00pm. My next flight was leaving so I was unable to check to see if my wallet was turned in. I will never fly with Lufthansa again.

My concern is with Flight: 441 IAH-FRA I was very cramped in my seat and the person in front of me was reclined. I pulled my wallet out of my purse and when finished I did my best to cram it back into my purse. Our flight was very delayed and we were rebooked twice and lots of airport time. As I got off the flight I noticed that I had dropped my wallet( containing all my credit & debit bank cards + 240 US dollars & 240 Euros. I spoke to customer service & Lost &Found. I was denied access to look on the plane. Therefore I have been without money and given no help. Paula Bjork 503.545.6698

Dinner was good by air travel standards but breakfast was too light and heavy on carbs/sugar.

Used to love Lufthansa, but Rowe are too close together in Economy and passengers are allowed to recline their seats so far back it is impossible for those behind them to even reach for carry-on essentials during flight - except for meal service when flight attendants ask for seat backs to be raised, we can’t sleep on planes so this flight was most uncomfortable ever! Rod Rose

So far so good. I missed my flight because of the Lufthansa diversion. United helped me to figure out how to get accommodations from Lufthansa for my long layover. They help me book appropriate onward flight.

Horrible crowding on the seats, headphones provided did not fit or work in the entertainment center, seriously the most uncomfortable flight I have taken in a LONG time. The people in front of me were literally 5 inches from my face the entire flight. Did they change their seats recently? I remember it being tight but wow this was a whole new level. Also I am a 5'3" small woman so I can't even imagine a larger person dealing with that for 11 hrs.

Excellent! Great flight attendants, good food (in business class, at least), very comfortable. Touchscreen and remote wasn’t great.

In economy and food was ok, but with limited leg space (and I was in a 2 seat configuration) it was difficult to eat with a tiny seat tray. I spilt wine on my trousers. First time on British Air (I usually fly Turkish Air) and in a 777. Heathrow was pleasant but changing terminals awkward.

Starting with the flight Cairo to London the plain was so poor no entertainment at all uncomfortable seats although it’s 5 hours long,then an American airline plain took me from London to Miami it was a bad experience the crew most of flight time not available and they asked us to help our selves for any snacks if we need. From Miami to London actually was perfect flight with a huge plain and perfect crew but from London to Cairo was horrible plain with stiff fixed seats not movable no entertainment or wi fi very poor Menu which is unacceptable for a business class

I've done hundreds of flights in my life, and this flight was one of the best I've ever taken, From beginning to end, everything went smoothly, professionally, and with a smile and friendly attitude from all employees I interacted with. The food was delicious (and free), as were the drinks. There was just a genial and effective way in the way that British Airways organized the flight -that reminded of days in the 70's, 80's, and 90's, when flying was a fun, and exciting adventure. I enjoyed and had confidence in the abilities of the flight crew, I'll be flying British Airways several more times this summer. Thank you so much for the great experience! Cheryl Olso

My baggage did not arrived with me. Took 3 days to get it after so may calls and follow up

Terrible! I missed my flight to my final destination and British airlines and American Airlines keep pointing fingers on each other’s. Nobody wants to take responsibility

Terrible. Flight was 3 hours delayed and I missed my other flight to my final destination

Overall, terrific service, accommodations, and experience. Only reason comfort was rated lower was because it was difficult to keep a comfortable sleeping position for the overnight flight, but I also had an economy seat.

Not sure if the crew were experiencing something unknown to me,but the service of passing water was non-existent.In addition,please take consideration when providing yogurt as alternative for breakfast as some of us, could be lactose intolerant.. thanks

Very cramped seats in economy, difficult to get comfortable with your legs and feet and back. The seat width is ok but I’m average size. Food is HORRIBLE. Crew is friendly. Delays and very tight connections made it tough for navigating. We would have missed our connecting flight if it wasn’t delayed too. The terminal transit was slow and normally every 10 minutes before 8pm, after 8 pm is every 30 minutes!!!!! No free wine or drinks!! Below average attitude.

Book cheap flights from Washington, D.C. to Sofia

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Washington, D.C. to Sofia found on KAYAK in the last 72 hours.
5/29ד'
3 stops
43h 51mBWI-SOF
$415
5/29ד'
2 stops
33h 25mBWI-SOF
$426
8/9ו'
1 stopTurkish Airlines
15h 15mIAD-SOF
$481
8/9ו'
3 stops
35h 25mBWI-SOF
$495
10/17ה'
1 stopTurkish Airlines
20h 40mIAD-SOF
$553
5/12א'
1 stopITA Airways
12h 35mIAD-SOF
$596
5/15ד'
2 stopsITA Airways
28h 04mDCA-SOF
$610
5/12א'
2 stopsBritish Airways
38h 38mDCA-SOF
$721
5/12א'
2 stopsBritish Airways
38h 38mDCA-SOF
$726
6/24ב'
1 stopLufthansa
13h 25mIAD-SOF
$1,047

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Last minute flights from Washington, D.C. to Sofia

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights from Washington, D.C. to Sofia that are departing in the next 10 days.
4/28א'
multi-stopITA Airways
12h 35mIAD-SOF
5/12א'
multi-stopITA Airways
27h 40mSOF-IAD
$678
4/30ג'
multi-stopSWISS
30h 25mIAD-SOF
5/7ג'
multi-stopSWISS
12h 20mSOF-IAD
$686
4/30ג'
multi-stop
20h 58mIAD-SOF
5/7ג'
multi-stop
12h 20mSOF-IAD
$693
4/30ג'
multi-stop
20h 58mIAD-SOF
5/7ג'
multi-stop
21h 09mSOF-IAD
$699
4/30ג'
multi-stopAir Canada
19h 15mDCA-SOF
5/7ג'
multi-stopAir Canada
15h 52mSOF-DCA
$706
4/26ו'
multi-stopITA Airways
17h 40mIAD-SOF
5/12א'
multi-stopITA Airways
27h 40mSOF-IAD
$717
4/27ש'
multi-stop
20h 35mIAD-SOF
5/13ב'
multi-stop
26h 50mSOF-IAD
$728
4/27ש'
multi-stopBritish Airways
25h 25mDCA-SOF
5/13ב'
multi-stopBritish Airways
27h 28mSOF-DCA
$799
4/27ש'
multi-stopTurkish Airlines
34h 10mIAD-SOF
5/18ש'
multi-stopTurkish Airlines
30h 00mSOF-IAD
$840
4/27ש'
multi-stopBritish Airways
20h 05mDCA-SOF
5/18ש'
multi-stopBritish Airways
27h 24mSOF-DCA
$1,036

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Flights to Sofia

Destination:

Sofia (SOF)Bulgaria

Cabin classes:

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