Cheap Flights from Onslow (ONS) to Washington (IAD)

Popular airlines from Onslow, WA (ONS) to Washington Dulles Intl. Airport (IAD)

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Frequently asked questions

How much does a flight from Onslow Airport (ONS) to Washington Dulles Intl. Airport (IAD) cost?
Secure a cheap one-way flight or cheap return flight from Onslow Airport (ONS) to Washington Dulles Intl. Airport (IAD) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from Onslow Airport (ONS) to Washington Dulles Intl. Airport (IAD)?
Flying in may help you find better deals, as it's the cheapest month for flights between ONS and IAD. You'll often find the lowest fares during off-peak months.
What is the cheapest airline that flies from Onslow Airport (ONS) to Washington Dulles Intl. Airport (IAD)?
Use the filters on Expedia to compare different airlines and find the most affordable carrier that'll take you from ONS to IAD. Then, sort your results by "Price (lowest to highest)" to snap up the best deal available.
How many flights per day from Onslow Airport (ONS) to Washington Dulles Intl. Airport (IAD)?
You'll need to take a flight with a layover if you're traveling from Onslow Airport (ONS) to Washington Dulles Intl. Airport (IAD). Direct flights don't operate daily on this route. However, just filter your search to include one or two stops to find the best option for your trip.
What day of the week has the most flights from ONS to IAD?
Generally you'll find the widest variety of flight choices on a Friday. Tuesdays are often the quietest.* But this can change based on the airline, season and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Onslow Airport (ONS) to Washington Dulles Intl. Airport (IAD)?
Select a flight from Onslow Airport (ONS) to Washington Dulles Intl. Airport (IAD) that takes off before 3 PM to reduce the risk of cancellations and delays. Departures after this hour are on average 22% more likely to be canceled.**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 Onslow Airport (ONS) to Washington Dulles Intl. Airport (IAD) last-minute?
Last-minute fares from ONS to IAD are generally more expensive. To lock in the best rates, start searching for flights well ahead of time. That being said, if you can play around with your travel dates, you may land a cheap ticket right before your trip.
Is it cheaper to book an ONS to IAD flight and hotel package?
You'll typically save money by securing an ONS 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 it all in one convenient place. After selecting your ideal accommodations and flights, you can add extras such as tours, car rentals and activities.
Can I cancel or change the date of my flight from Onslow Airport (ONS) to Washington Dulles Intl. Airport (IAD)?
If you booked your ONS to IAD flight in the last 24 hours, you may be able to cancel or modify it without any fees. Depending on the airline and the type of ticket you purchased, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal for more information.

Travel information

Origin airport
Onslow
Destination airport
Washington Dulles Intl.
Distance
11029 mi

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Onslow to Washington Flights

The cheapest times to fly from Onslow 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 Onslow to Washington are during the month of . You can find some of the cheapest flights from Onslow to Washington with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Onslow to Washington

Sunday is one of the best days to book for cheap flights from Onslow 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 Onslow 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 Onslow to Washington in 2026. You can also book with separate airlines for your outbound and return journeys, from 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 Onslow 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 Onslow 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.

 

Onslow to Washington Flights

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*Available to One Key members.