HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Niagara Falls

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

IAD — IAG
Nov 15 — Nov 221
Sat 11/15
Sat 11/22
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

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

Discover tips and strategies to find the most affordable flight options for your journey from Dulles Intl (IAD) to Niagara Falls (IAG). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated October 16, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars
Provider with most accurate pricing for Washington, D.C. Dulles Intl-Niagara Falls flight deals.
Search Deals
Provider most trusted by Cheapflights users for Washington, D.C. Dulles Intl-Niagara Falls flights.
Search Deals

Compare providers for flights from Dulles Intl to Niagara Falls

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Dulles Intl to Niagara Falls in October.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Washington, D.C. Dulles Intl Airport-Niagara Falls, New York flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Washington, D.C. Dulles Intl Airport-Niagara Falls, New York flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Washington, D.C. Dulles Intl Airport-Niagara Falls, New York flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Washington, D.C. Dulles Intl Airport-Niagara Falls, New York flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Washington, D.C. Dulles Intl Airport-Niagara Falls, New York flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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 month to book a flight from Washington, D.C. Dulles Intl Airport to Niagara Falls, New York?

Currently, April is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Niagara Falls, New York (average of $157). Flying from Washington, D.C. Dulles Intl Airport to Niagara Falls, New York in March is currently the most expensive (average of $222). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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 October 16, 2025.

Unlike in the afternoon, when flights are generally more expensive, you can save up to 20% on flights from Washington, D.C. Dulles Intl Airport to Niagara Falls, New York by exploring options for tickets at noon.

Reviews of airlines servicing Niagara Falls

Get insights into the airlines that provide service to Niagara Falls. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Niagara Falls. Reviews last updated October 16, 2025.
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
8,982 reviews

Comfort

7.3

Crew

8.1

Entertainment

7.1

Boarding

7.7

Food

6.6

Overall

7.4

Reviews

1 / 20
4.0
Okay

Tim,Sep 2025

IAD - GSP

This was pretty bad. It’s chaos at the Dulles boarding gates for the small regional jets because they use one gate to board 3-4 flights at a time. So, it’s difficult knowing where and when to go. There is little space for any size of carrry-on, so most had to gate check their bags. However, the worst of it was that our single flight attendant fell asleep before we took off and the pilot couldn’t do so until she responded to his messages. My wife had to wake her up! So we were a little late leaving. Not to be thwarted, the flight attendant fell asleep right after take off and there was no sight of her during the flight. When the aircraft touched down, a tray of unsecured canned drinks came crashing onto the aisle up front. I can only assume someone didn’t do what they were supposed to. The pilot was great, but I’m sure he must not be happy with this crew member.
United Airlines
7.4
Good
8,982 reviews
United Airlines
7.4
Good
8,982 reviews

Comfort

7.3

Crew

8.1

Entertainment

7.1

Boarding

7.7

Food

6.6

Overall

7.4

Reviews

1 / 20
4.0
Okay

Tim,Sep 2025

IAD - GSP

This was pretty bad. It’s chaos at the Dulles boarding gates for the small regional jets because they use one gate to board 3-4 flights at a time. So, it’s difficult knowing where and when to go. There is little space for any size of carrry-on, so most had to gate check their bags. However, the worst of it was that our single flight attendant fell asleep before we took off and the pilot couldn’t do so until she responded to his messages. My wife had to wake her up! So we were a little late leaving. Not to be thwarted, the flight attendant fell asleep right after take off and there was no sight of her during the flight. When the aircraft touched down, a tray of unsecured canned drinks came crashing onto the aisle up front. I can only assume someone didn’t do what they were supposed to. The pilot was great, but I’m sure he must not be happy with this crew member.

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?

    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.

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

    Currently, April is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Niagara Falls, New York (average of $157). Flying from Washington, D.C. Dulles Intl Airport to Niagara Falls, New York in March is currently the most expensive (average of $222). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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.
Dulles Intl to John F Kennedy Intl flights
Reagan-National to John F Kennedy Intl flights
Dulles Intl to LaGuardia flights
Reagan-National to LaGuardia flights
Dulles Intl to Newark flights
Baltimore to LaGuardia flights
Reagan-National to Newark flights
Baltimore to John F Kennedy Intl flights
Baltimore to Newark flights
Baltimore to Buffalo flights
Dulles Intl to Buffalo flights
Reagan-National to Buffalo flights
Dulles Intl to Albany flights
Reagan-National to Rochester flights
Baltimore to Rochester flights
Reagan-National to Albany flights
Dulles Intl to Syracuse flights
Reagan-National to Syracuse flights
Dulles Intl to White Plains flights
Baltimore to Syracuse flights
Dulles Intl to Rochester flights
Reagan-National to White Plains flights
Baltimore to Islip flights
Reagan-National to Saranac Lake flights
Baltimore to Albany flights
Dulles Intl to Ithaca flights
Dulles Intl to Stewart flights
Dulles Intl to Plattsburgh flights
Baltimore to White Plains flights
Dulles Intl to Islip flights
Reagan-National to Islip flights
Reagan-National to Ithaca flights
Baltimore to Stewart flights
Baltimore to Rutland flights
Dulles Intl to Rutland flights
Reagan-National to Rutland flights
Reagan-National to Binghamton flights
Baltimore to Ithaca flights
Baltimore to Plattsburgh flights
Dulles Intl to Binghamton flights
Reagan-National to Watertown flights
Dulles Intl to Watertown flights
Baltimore to Binghamton flights
Baltimore to Watertown flights
Reagan-National to Elmira flights
Reagan-National to Stewart flights
Baltimore to Elmira flights
Baltimore to Niagara Falls flights
Dulles Intl to Elmira flights
Baltimore to Saranac Lake flights

Top airline flying from Dulles Intl to Niagara Falls

Discover the top airline that operate flights from Dulles Intl to Niagara Falls. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated October 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$239Average$331FlexibilityNo cancel feeOn-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.