Cheap Flights from Washington Dulles to Sofia

Compare Washington Dulles to Sofia flight deals

Find the cheapest month or even day of the year to fly to Sofia

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Flight deals from Washington Dulles to Sofia

Looking for a cheap last-minute deal or the best return flight from Washington Dulles Airport to Sofia Airport? If you want to travel next month, return fares start from $1,568. Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Washington Dulles to Sofia

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Washington Dulles to Sofia flights are currently cheapest in October.

Washington Dulles to Sofia: Alternative routes

Compare routes from Washington Dulles to Sofia below. You may find an airport to fly into that's cheaper, faster, or easier than Sofia.

Washington D.C. to Sofia: Flight information

The things to know before you go.
Cheapest flight found$1,238
Cheapest month to flyMarch

Finding cheap flights from Washington Dulles to Sofia: Frequently asked questions

The best price we found for a return flight from Washington Dulles to Sofia is $1,238. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from Washington Dulles to Sofia. But we found flights with one or more stops from $1,238.
As of June 2026, there are no flights flying from Washington Dulles to Sofia.
The cheapest month to fly from Washington Dulles to Sofia is usually March.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Washington Dulles Airport to Sofia Airport on Monday, 29 March 2027.
No airlines currently offer direct flights between Washington Dulles Airport and Sofia Airport. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Sofia but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Sofia is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, Turkish Airlines offers the cheapest flight tickets to Sofia.

Travelling from Washington Dulles Airport (IAD) to Sofia Airport (SOF): what you need to know

  • Sofia's timezone is UTC+2, making Sofia seven hours ahead of Washington DC.

  • For a smooth journey, turn up at the airport two hours ahead of international flights and an hour before domestic departures. This will give you enough time to catch your IAD to SOF flight.

  • Flying during a peak time such as July? Public holidays and other popular seasons can result in longer queues at security. Play things extra safe and get there up to four hours ahead of international flights and two hours before a domestic departure.

  • Consider adding a stopover when booking your ticket from Washington Dulles Airport to Sofia Airport. Just deselect 'Direct flights only' to break up your trip, or visit a new city along the way. Check out these options between IAD and SOF:

    • London Heathrow Airport

    • Rome Fiumicino Airport

    • Munich Airport

How to find the cheapest flights from Washington Dulles Airport (IAD) to Sofia Airport (SOF)

  • The lowest price we've found for a one-way Washington Dulles Airport to Sofia Airport flight is $594. A round-trip ticket right now is $1,238. Depending on the availability and when you book, these fares could change.

  • To find cheap tickets from IAD to SOF, book ahead. Airlines typically offer their best fares when flights are first released.

  • The 'Whole month' search tool shows you the cheapest flights from Washington Dulles Airport to Sofia Airport throughout the entire month. It's a great way to find a bargain if your dates are flexible.

  • You don't need to check every day to see if fares have gone down when you set up a Price Alert. We'll update you as soon as there's a new deal on cheap flights from IAD to SOF.

  • Select your ideal arrival and departure times, number of stops and airlines with the filters. Or sort your results by 'Cheapest' to get the best deals on flights from Washington Dulles Airport to Sofia Airport.

Handy information about Washington Dulles Airport (IAD)

  • IAD is located at 1 Saarinen Circle.

  • 77% of flights leaving from Washington Dulles Airport make it to their destination on schedule.

  • Washington Dulles Airport is around 40 kilometres from central Washington DC. If you're driving, ride-sharing or catching a taxi from the centre, it'll take 45 minutes or so to arrive, depending on the traffic.

  • You can expect a trip time of roughly 1 hour 10 minutes on public transport.

  • Have an early flight from Washington Dulles Airport to Sofia Airport? Avoid the hassle of rushing to the terminal (and enjoy a little extra shut-eye) by choosing one of these hotels close to IAD:

Arriving at Sofia Airport (SOF)

Getting from Sofia Airport (SOF) to central Sofia

  • From Sofia Airport, Sofia is approximately 10 kilometres away. It takes around 25 minutes to reach the centre driving.

  • It typically takes 30 minutes if you're using public transport.

When to fly to Sofia Airport (SOF)

  • August is the busiest month for flights from Washington Dulles Airport to Sofia Airport. To skip the crowds, travel to Sofia in March.

  • Lock in your flight from Washington Dulles Airport to Sofia Airport for August if you want to visit Sofia during its warmest month. Expect temperatures of between 13ºC and 32ºC.

  • If you want to travel in cooler conditions, look for a cheap ticket from IAD to SOF in January. Temperatures average between -11ºC and 7ºC then.

Explore more of Bulgaria

  • You've done Sofia, now it's time to discover more of Bulgaria. Travel about 129 kilometres south-east to Plovdiv to tick off its leading sights. From Plovdiv Roman Theatre to Municipal Institute "Ancient Plovdiv" and Museum Centre for Contemporary History, you've got a jam-packed schedule ahead.

  • Around 386 kilometres east of Sofia, Varna is another essential stop in Bulgaria. Start your sightseeing at Sahara beach, Museum of Natural History and Sea Garden.

Prices shown on this page are estimated lowest prices only. Found in the last 12 days.