What is the cheapest airline to fly from Washington, D.C. Dulles Intl Airport to Niagara Falls, New York round-trip?

United Airlines, at $239, was found to be the cheapest airline from Washington, D.C. Dulles Intl Airport to Niagara Falls, New York..

In terms of precipitation, rainfall in Niagara Falls, New York ranges from 2.2 - 3.4 inches per month. September is typically the wettest month, when rainfall can reach 3.4 in. February is typically the driest time to visit Niagara Falls, New York when rainfall is around 2.2 in.

If weather is an important factor for your trip to Niagara Falls, New York, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 71.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 23.0 F).

What is the cheapest day to fly round-trip from Washington, D.C. Dulles Intl Airport to Niagara Falls, New York?

It’s generally more expensive to depart on a Friday, if you have to leave on this day you can still search on Cheapflights to find great options that meet your needs.

What is the cheapest month to fly from Washington, D.C. Dulles Intl Airport to Niagara Falls, New York?

Our data shows that March tends to be the cheapest month to fly to Niagara Falls, New York from Washington, D.C. Dulles Intl Airport. Users have commonly found prices around $331 for the month, but tickets can be as low as $222. Due to multiple factors, prepare for potentially higher prices in September.

What airport do you fly into for flights to Niagara Falls from Washington, D.C. Dulles Intl?

For a flight from Washington, D.C. Dulles Intl to Niagara Falls, you will be flying into Niagara Falls. Niagara Falls (IAG) is just 5.7 mi from the center of the city. Niagara Falls is the only Niagara Falls airport and it handles 0 inbound flights from Washington, D.C. Dulles Intl per day. 1 airline has flights to Niagara Falls from Washington, D.C. Dulles Intl on a regular basis.

Can I find deals for flights from Dulles Intl to Niagara Falls that include hotel bookings?

Yes. In addition to deals on Dulles Intl to Niagara Falls flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Dulles Intl to Niagara Falls?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Dulles Intl to Niagara Falls.

Can I find deals for business class flights from Dulles Intl to Niagara Falls?

Yes. Cheapflights offers flight deals from Dulles Intl to Niagara Falls by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

Find Cheap Flights from Washington, D.C. Dulles Intl Airport to Niagara Falls, NY

Home Search by date Vacation packages Hotels Flight deals Car rental Travel tips & news

Find cheap flights from Dulles Intl to Niagara Falls with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Dulles Intl to Niagara Falls

Popular in	September
Cheapest in	March
Average price	$348

Highest demand for flights based on searches. 6% potential increase in price ($23 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease ($9 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in August 2025

Search Deals

Best time to book a flight from Dulles Intl to Niagara Falls

Have a flexible travel schedule? Discover the best time to fly to Niagara Falls from Dulles Intl with our price prediction graph.

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Washington, D.C. Dulles Intl Airport to Niagara Falls

What is the cheapest time of day to fly from IAD to IAG?

Unlike at noon, when flights are generally more expensive, you can save up to 1% on flights from Washington, D.C. Dulles Intl Airport to Niagara Falls, New York by exploring options for tickets in the morning.

Reviews of airlines servicing Niagara Falls

Peruse reviews from past customers who have flown with United Airlines from Washington, D.C. Dulles Intl Airport to Niagara Falls to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

United Airlines

7.4

Good

8,916 reviews

Reviews

1 / 20

2.0

Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!

United Airlines

7.4

Good

8,916 reviews

United Airlines

7.4

Good

8,916 reviews

Reviews

1 / 20

2.0

Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!

Related info for your journey

What airport do you fly into for flights to Niagara Falls from Washington, D.C. Dulles Intl?
For a flight from Washington, D.C. Dulles Intl to Niagara Falls, you will be flying into Niagara Falls. Niagara Falls (IAG) is just 5.7 mi from the center of the city. Niagara Falls is the only Niagara Falls airport and it handles 0 inbound flights from Washington, D.C. Dulles Intl per day. 1 airline has flights to Niagara Falls from Washington, D.C. Dulles Intl on a regular basis.
What is the cheapest airline to fly from Washington, D.C. Dulles Intl Airport to Niagara Falls, New York round-trip?
United Airlines, at $239, was found to be the cheapest airline from Washington, D.C. Dulles Intl Airport to Niagara Falls, New York..
Can I find deals for flights from Dulles Intl to Niagara Falls that include hotel bookings?
Yes. In addition to deals on Dulles Intl to Niagara Falls flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Dulles Intl to Niagara Falls?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Dulles Intl to Niagara Falls.
Can I find deals for business class flights from Dulles Intl to Niagara Falls?
Yes. Cheapflights offers flight deals from Dulles Intl to Niagara Falls by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Top airline flying from Dulles Intl to Niagara Falls

Airline	Cheapest	Average	Flexibility	On-time
United Airlines	Cheapest$239	Average$308	FlexibilityNo cancel fee	On-time69%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.

Cheap flights from Dulles Intl (IAD) to Niagara Falls, NY (IAG)

Find cheap flights from Dulles Intl to Niagara Falls with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Dulles Intl to Niagara Falls

Popular in

Cheapest in

Average price

Best time to book a flight from Dulles Intl to Niagara Falls

Have a flexible travel schedule? Discover the best time to fly to Niagara Falls from Dulles Intl with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Washington, D.C. Dulles Intl Airport to Niagara Falls

What is the cheapest time of day to fly from IAD to IAG?

Find hourly flight availability from Dulles Intl to Niagara Falls. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 14, 2025.

Reviews of airlines servicing Niagara Falls

Peruse reviews from past customers who have flown with United Airlines from Washington, D.C. Dulles Intl Airport to Niagara Falls to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Dulles Intl to Niagara Falls. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What airport do you fly into for flights to Niagara Falls from Washington, D.C. Dulles Intl?

What is the cheapest airline to fly from Washington, D.C. Dulles Intl Airport to Niagara Falls, New York round-trip?

Can I find deals for flights from Dulles Intl to Niagara Falls that include hotel bookings?

How can I find direct flights from Dulles Intl to Niagara Falls?

Can I find deals for business class flights from Dulles Intl to Niagara Falls?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Dulles Intl to Niagara Falls

See prices for flight routes from nearby airports that may be better suited for you.

Top airline flying from Dulles Intl to Niagara Falls

100% Free

Book with Flexibility

Travel Smart