Title: Cheap Flights from Washington to Niagara Falls (DCA to IAG) - Expedia.co.uk ![Bridal Veil Falls showing landscape views, a waterfall and a city](https://images.trvl-media.com/place/6066055/c442c496-ee29-41e5-9368-d8bd9109295b.jpg?impolicy=fcrop&w=1200&h=500&q=medium) ![](https://images.trvl-media.com/place/6066055/c442c496-ee29-41e5-9368-d8bd9109295b.jpg?impolicy=fcrop&w=1200&h=500&q=medium) # Cheap Flights from Washington (DCA) to Niagara Falls (IAG) - [Return](?flightType=roundtrip) - [One-way](?flightType=oneway) - [Multi-city](?flightType=multicity) ### Travellers Adults ChildrenAges 2 to 17 InfantsYounger than 2 EconomyPremium economyBusiness classFirst class Leaving from Going to Departing Returning Add a place to stay Add a car Direct flights only ## Popular airlines from Ronald Reagan National Airport (DCA) to Niagara Falls, NY (IAG-Niagara Falls Intl.) - ![British Airways](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_BA.svg) British Airways [](https://www.expedia.co.uk/Flights-Search?leg1=from:dca,to:iag,departure:15/11/2025TANYT&leg2=from:iag,to:dca,departure:22/11/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"BA"}}]) - ![easyJet](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_U2.svg) easyJet [](https://www.expedia.co.uk/Flights-Search?leg1=from:dca,to:iag,departure:15/11/2025TANYT&leg2=from:iag,to:dca,departure:22/11/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"U2"}}]) - ![Lufthansa](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_LH.svg) Lufthansa [](https://www.expedia.co.uk/Flights-Search?leg1=from:dca,to:iag,departure:15/11/2025TANYT&leg2=from:iag,to:dca,departure:22/11/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"LH"}}]) - ![Ryanair](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_FR.svg) Ryanair [](https://www.expedia.co.uk/Flights-Search?leg1=from:dca,to:iag,departure:15/11/2025TANYT&leg2=from:iag,to:dca,departure:22/11/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"FR"}}]) - ![American Airlines](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_AA.svg) American Airlines [](https://www.expedia.co.uk/Flights-Search?leg1=from:dca,to:iag,departure:15/11/2025TANYT&leg2=from:iag,to:dca,departure:22/11/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"AA"}}]) - ![Jet2](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_LS.svg) Jet2 [](https://www.expedia.co.uk/Flights-Search?leg1=from:dca,to:iag,departure:15/11/2025TANYT&leg2=from:iag,to:dca,departure:22/11/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"LS"}}]) - ![Swiss International Air Lines](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_LX.svg) Swiss International Air Lines [](https://www.expedia.co.uk/Flights-Search?leg1=from:dca,to:iag,departure:15/11/2025TANYT&leg2=from:iag,to:dca,departure:22/11/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"LX"}}]) - ![notification illustration](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__notification.svg) ### Be in the know Get alerts if flight prices drop or rise\* - ![deals illustration](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__deals.svg) ### Book smarter Save up to 25% on select hotels after you book a flight\* - ![trophy illustration](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__trophy.svg) ### Earn twice Earn your airline miles on top of our rewards [Sign in](https://www.expedia.co.uk/login) ## Frequently asked questions ### How much is a flight from DCA to IAG? > Round-trip journeys between Ronald Reagan Washington National Airport (DCA) and Niagara Falls Intl. Airport (IAG) start from . This price is based on fares advertised within the last 7 days on Expedia for flights departing within the next year — book ASAP to avoid missing out. Prices and availability are subject to change. Additional terms apply. ### Do I need to pay a cancellation fee if I cancel my flight from Ronald Reagan Washington National Airport (DCA) to Niagara Falls Intl. Airport (IAG)? > This can vary between airlines, as each one has its own terms and conditions. Visit the [Customer Service Portal](https://www.expedia.co.uk/service/?langid=1033), where there are easy instructions on how to cancel online. ### How do I find cheap flights from National Airport to Niagara Falls Intl. Airport (IAG) that have flexible change policies? > Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for DCA to Niagara Falls Intl. Airport flights, you'll see a "no change fees" filter for you to select. ### How far is the flight from Ronald Reagan Washington National Airport (DCA) to IAG? > You won't have time for a movie marathon on this flight — it's only 500 kilometres from Arlington to Niagara Falls. Sit down, order a snack and you'll be touching down before you know it. ### Which airlines fly direct from DCA to Niagara Falls Intl. Airport (IAG)? > Flying nonstop between Ronald Reagan Washington National Airport (DCA) and Niagara Falls Intl. Airport (IAG) isn't possible at this time. However, you'll still be able to book a flight to Niagara Falls with at least one stop. ### Are DCA to IAG flight tickets cheaper when they're purchased at the last minute? > Fares from Ronald Reagan Washington National Airport (DCA) to IAG are available up to a year before departure on Expedia. And although you may nab fantastic last-minute deals, it's never a sure thing. Also, booking your flights well in advance means you'll have more choices — and you can avoid getting trapped in the dreaded middle seat! We're constantly updating our fares to bring you the biggest bargains, so keep checking in for all the latest specials. ## Travel information | Origin airport | Ronald Reagan Washington National | | --- | --- | | Destination airport | Niagara Falls Intl. | | Distance | 495 km | ## Book with confidence ### Compare flights from Washington to Niagara Falls easily and book with confidence For travelling on business or for pleasure, Expedia makes it easy to book your flights from Washington to Niagara Falls. Operating between them flights per day, airlines cover the route. And fly direct, getting you to Niagara Falls Intl. in just hours. If you have a preferred carrier, use our advanced search tool to find the right flight from Ronald Reagan Washington National to Niagara Falls Intl..   To make things even better, in the advanced search, you can also choose to fly economy, premium economy, business or first class, select your maximum number of stops, and pick your preferred departure and arrival time. You can also opt for refundable and direct flights.  Grab a great deal on your flight from Ronald Reagan Washington National (DCA) to Niagara Falls Intl. (IAG) The easiest way to view the best deals on flights from Washington to Niagara Falls today is to enter your travel dates and hit search. From here, you can sort your results by price to see the cheapest flights first. Right now, return flights from Ronald Reagan Washington National to Niagara Falls Intl. start at just and range up to .   To find an even better deal, try   - being flexible on your dates – midweek flights can be cheaper - looking for other airports near Washington and Niagara Falls - booking your flight during , the cheapest month on this route - varying your flight times – early morning and late at night are sometimes cheaper  Why you should book your Washington to Niagara Falls flight with Expedia! We cater for all flight types, cabin classes and airlines. So whether you’re booking flights from Ronald Reagan Washington National to Niagara Falls Intl. for a budget break or a business trip with a bit of pleasure thrown in, we make it easy to secure the seat that’s right for you.   Thanks to our supersized inventory that offers great choice all in one place, you know you’ll get a great deal with Expedia. Especially if you bundle your flight together with your hotel, you will unlock amazing savings. For added peace of mind, you can choose flexible bookings or filter to find refundable options, so you won’t pay a fee to change your flight.   ## Explore a world of travel with Expedia - Flights - [Flights from Accra (ACC) to Buffalo (BUF)](https://www.expedia.co.uk/lp/flights/acc/buf/accra-to-buffalo) - [Flights from Albany (ALB) to Buffalo (BUF)](https://www.expedia.co.uk/lp/flights/alb/buf/albany-to-buffalo) - [Flights from Atlanta (ATL) to Buffalo (BUF)](https://www.expedia.co.uk/lp/flights/atl/buf/atlanta-to-buffalo) - [Flights from Sri Guru Ram Das Ji Intl. 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