$592 Cheap Flights from Nis (INI) to Washington (IAD)

View $592 flight on Wed, Oct 1, 2025Opens in a new window

Popular airlines from Nis (INI-Constantine the Great) to Washington Dulles Intl. Airport (IAD)

  • Plan, book, fly with confidence

  • trending down icon

    Be in the know

    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon

    Book smarter

    Save up to 30% on select hotels after you book a flight*
  • one key icon

    Earn twice

    Earn your airline miles on top of our OneKeyCash
    Learn about One Key

Cheap Flights from Nis to Washington (INI-IAD)

Prices were available within the past 7 days and start at $592 for one-way flights and $720 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Air Serbia
Sat, Sep 13 - Mon, Sep 29
INI
Niš
IAD
Washington
$720 Roundtrip, found 6 days ago
$720
Roundtrip
found 6 days ago
Select Air Serbia flight, departing Sat, Sep 13 from Niš to Washington, returning Mon, Sep 29, priced at $720 found 6 days ago
Air Serbia
Sat, Sep 27 - Mon, Oct 13
INI
Niš
IAD
Washington
$738 Roundtrip, found 6 days ago
$738
Roundtrip
found 6 days ago
Select Air Serbia flight, departing Sat, Sep 27 from Niš to Washington, returning Mon, Oct 13, priced at $738 found 6 days ago
Air Serbia
Tue, Sep 2 - Mon, Sep 15
INI
Niš
IAD
Washington
$790 Roundtrip, found 6 days ago
$790
Roundtrip
found 6 days ago
Select Air Serbia flight, departing Tue, Sep 2 from Niš to Washington, returning Mon, Sep 15, priced at $790 found 6 days ago
Air Serbia
Tue, Aug 26 - Mon, Sep 8
INI
Niš
IAD
Washington
$831 Roundtrip, found 6 days ago
$831
Roundtrip
found 6 days ago
Select Air Serbia flight, departing Tue, Aug 26 from Niš to Washington, returning Mon, Sep 8, priced at $831 found 6 days ago
Air Serbia
Tue, Aug 26 - Mon, Sep 29
INI
Niš
IAD
Washington
$838 Roundtrip, found 21 hours ago
$838
Roundtrip
found 21 hours ago
Select Air Serbia flight, departing Tue, Aug 26 from Niš to Washington, returning Mon, Sep 29, priced at $838 found 21 hours ago
Swiss International Air Lines
Thu, Aug 7 - Wed, Aug 20
INI
Niš
IAD
Washington
$866 Roundtrip, found 6 days ago
$866
Roundtrip
found 6 days ago
Select Swiss International Air Lines flight, departing Thu, Aug 7 from Niš to Washington, returning Wed, Aug 20, priced at $866 found 6 days ago
Swiss International Air Lines
Thu, Aug 7 - Tue, Aug 19
INI
Niš
IAD
Washington
$888 Roundtrip, found 6 days ago
$888
Roundtrip
found 6 days ago
Select Swiss International Air Lines flight, departing Thu, Aug 7 from Niš to Washington, returning Tue, Aug 19, priced at $888 found 6 days ago
Swiss International Air Lines
Thu, Aug 7 - Sat, Aug 16
INI
Niš
IAD
Washington
$895 Roundtrip, found 6 days ago
$895
Roundtrip
found 6 days ago
Select Swiss International Air Lines flight, departing Thu, Aug 7 from Niš to Washington, returning Sat, Aug 16, priced at $895 found 6 days ago
Air Serbia
Sun, Aug 24 - Wed, Oct 1
INI
Niš
IAD
Washington
$947 Roundtrip, found 21 hours ago
$947
Roundtrip
found 21 hours ago
Select Air Serbia flight, departing Sun, Aug 24 from Niš to Washington, returning Wed, Oct 1, priced at $947 found 21 hours ago
Turkish Airlines
Sat, Aug 2 - Mon, Aug 11
INI
Niš
IAD
Washington
$1,252 Roundtrip, found 6 days ago
$1,252
Roundtrip
found 6 days ago
Select Turkish Airlines flight, departing Sat, Aug 2 from Niš to Washington, returning Mon, Aug 11, priced at $1,252 found 6 days ago

Alternative airports near Washington

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Washington Dulles Intl. IAD. Cheapest option available. Average driving time to city center is 36 minutes. Flights from $1,220
IAD
Washington Dulles Intl.
Cheapest
Average driving time to city center36 min
Flights from $1,220
Flights from Nis (INI) to Washington (IAD)
Origin airport
Constantine the Great
Destination airport
Washington Dulles Intl.
Roundtrip price
$720
Distance
4845 mi

Nis to Washington Flights

The cheapest times to fly from Nis to Washington

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Nis to Washington are during the month of September. You can find some of the cheapest flights from Nis to Washington with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Nis to Washington

Sunday is one of the best days to book for cheap flights from Nis to Washington: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Nis to Washington

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Nis to Washington in 2025. You can also book with separate airlines for your outbound and return journeys, from $592 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Nis to Washington flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Nis to Washington airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Constantine the Great Airport (INI) to Washington Dulles Intl. Airport (IAD) cost?
Discover the latest flight deals from INI to IAD by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from INI to IAD?
The cheapest flights from INI to IAD are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
What is the cheapest airline that flies from INI to IAD?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll take you from INI to IAD. Sort your results by "Price (lowest to highest)" to snap up a great deal.
How many flights per day from Constantine the Great Airport (INI) to Washington Dulles Intl. Airport (IAD)?
There are no daily nonstop flights departing from Constantine the Great Airport (INI) to Washington Dulles Intl. Airport (IAD). But you can book flights with layovers. Filter your search on Expedia to include one or more stops, and you'll be soaring above the clouds before you know it.
What day of the week has the most flights from INI to IAD?
Friday is usually the busiest day for flights, while Tuesday tends to be the quietest.* Just remember that flight schedules can change depending on various factors, including the carrier and season.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Constantine the Great Airport (INI) to Washington Dulles Intl. Airport (IAD)?
To arrive at Washington Dulles Intl. Airport (IAD) on schedule, pick a flight that leaves Constantine the Great Airport (INI) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this hour.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Constantine the Great Airport (INI) to Washington Dulles Intl. Airport (IAD) last-minute?
Last-minute fares from INI to IAD are usually more expensive. To lock in the lowest rates, start looking for flights well ahead of time. That said, if you're flexible with your travel plans, you may find a cheap ticket right before your trip.
Is it cheaper to book an INI to IAD flight and hotel package?
You'll generally save money by securing an INI to IAD flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it's simple to manage everything in one convenient place. After choosing your preferred accommodations and flights, consider adding extras including tours, car rentals and activities.
Can I cancel or change the date of my flight from Constantine the Great Airport (INI) to Washington Dulles Intl. Airport (IAD)?
Typically, you're able to cancel or reschedule your INI to IAD flight. However, there may be additional fees, especially if your booking was made over 24 hours ago. Check your itinerary for the airline's fees and policies on flight changes, or if you need further information, visit our Customer Service portal.

Explore a world of travel with Expedia

*Available to One Key members.