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Flights from Washington D.C. to Sofia

What to know about flights from Washington D.C. to Sofia?

The distance between Washington D.C. and Sofia is approximately 7,918.86 km.

Cheapest one-way
€430
Finnair Finnair WAS-SOF 17h 35m · 1 stop Tue, Dec 1
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Cheapest round-trip
€617
Turkish Airlines Turkish Airlines WAS-SOF 12h 10m · 2 stops Wed, Dec 2 - Wed, Dec 9
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Route details
7,918.86 km
Flight distance

Explore the cheapest one-way and round-trip flights from Washington D.C. to Sofia over the next 90 days, with one-way fares from €430 and round-trip from €617. Based on Trip.com's latest 7-day flight data.

Displayed flight fares from Washington D.C. to Sofia are based on average prices across airlines for the next 3 months, according to the latest Trip.com database.

Flight.News
Sofia weather alert update for November 12, 2026: No active weather alert details have been reported.

Which airlines are the most popular for Washington D.C. to Sofia flights?

You can choose from 1 airlines that fly from Washington D.C. to Sofia, including Turkish Airlines, Finnair has lowest fares on this route.
Turkish Airlines logo Turkish Airlines
Airlines are determined based on actual purchased flight tickets from Washington D.C. to Sofia according to previous 12 months data from Trip.com.

Frequently Asked Questions

  • What are the cheapest flights from Washington D.C. to Sofia (WAS-SOF)?

    Based on Trip.com data, Finnair offers one-way fares as low as €430 on Cheapest nonstop routes (e.g. IAD to SOF on Tue, Dec 1), while Turkish Airlines offers Cheapest nonstop round-trips from €617 departing on Wed, Dec 2 and returning on Wed, Dec 9.
  • At the moment, several airlines serve connecting flights from Washington D.C. to Sofia, including: Turkish Airlines Selected airlines are based on historical data collected from flight bookings made by users on Trip.com within the last 90 days.
  • By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from Washington D.C. to Sofia is around 40 days (6 weeks) in advance, and the best time to fly is usually on Tuesday, Wednesday, and Saturday. Tuesday typically offers the cheapest flights for departure, while Saturday offers the best return deals.
  • To find best deals on flights from Washington D.C. to Sofia, you can use various tools on Trip.com:
    · Be flexible with your travel dates to get the cheapest flight deal. Now the cheapest flight deal is on Tue, Dec 1, with one-way flights priced at just €430.
    · Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is Finnair.
    · Set up price alerts to easily monitor ticket prices without having to check every day.
    · Check Trip.com flight deals and promo codes frequently.
    · Get exclusive promo codes for Trip.com app users.
  • After crunching the numbers on our November flight calendar, it's currently cheapest to fly from Washington D.C. to Sofia on Sun, Nov 29 with United Airlines, with prices starting at €451.
  • You can arrive at any of the following airports in Sofia: Sofia Airport (SOF). Flights from Dulles International Airport to Sofia Airport (IAD-SOF) are by far the most popular option for this route.
  • The time difference between Sofia and Washington D.C. is 7h.
  • Tickets can only be changed or canceled if permitted by airline policy. To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy. However, if the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.
  • Based on Trip.com data for flights departing in the next 30 days, the average one-way fare from Washington D.C. to Sofia is €613. Fares vary by travel date, airline and availability.
  • Enter Washington D.C. and Sofia, choose your travel dates and passengers, then compare flights by price, duration and baggage. Select a fare, review the change and cancellation rules, enter traveler details and complete payment to receive your confirmation.

Note: Prices shown on this page are estimated lowest price and include all taxes and fees found in the last 24 hours.

Book with no extra fees

Prices displayed in this page are all-inclusive prices (incl. taxes, fuel surcharge, civil aviation development fund, etc) with all fees confirmed before payment. Fees for luggage, meals, WLAN, or other additional services are also included as shown in the flight cards.

Real-time pricing updates

Prices, availability, and travel information on this page were updated within last 24 hours—even in real-time. The more popular the route, the more precise the data.

Change & Cancellation Policy

Trip.com displays flight cancellation and change policies for each flight ticket during the booking process, including fees and applicable conditions. Please check the following scenarios:
Voluntary cancellation/change:
To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy.
Cancellation/change due to a flight schedule change:
If the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.