Cheap Flights from Washington (DCA) to Chiayi (CYI)

Popular airlines from Ronald Reagan Washington National Airport (DCA) to Chiayi (CYI)

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Flights from Washington (DCA) to Chiayi (CYI)
Origin airport
Ronald Reagan Washington National
Destination airport
Chiayi
Distance
7986 mi

Washington to Chiayi Flights

The cheapest times to fly from Washington to Chiayi

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

 

The best time to book a flight from Washington to Chiayi

Sunday is one of the best days to book for cheap flights from Washington to Chiayi: 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 Washington to Chiayi

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 Washington to Chiayi in 2025. 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 Washington to Chiayi 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 Washington to Chiayi 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 Ronald Reagan Washington National Airport (DCA) to Chiayi Airport (CYI) cost?
Discover the latest flight deals from DCA to CYI 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 DCA to CYI?
The cheapest flights from DCA to CYI 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 DCA to CYI?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll take you from DCA to CYI. Sort your results by "Price (lowest to highest)" to snap up a great deal.
How many flights per day from Ronald Reagan Washington National Airport (DCA) to Chiayi Airport (CYI)?
Nonstop flights from Ronald Reagan Washington National Airport (DCA) to Chiayi Airport (CYI) aren't available daily, so you'll have to take a flight with a layover. Explore your options with our filter tool. Enter your dates and select either "1 Stop" or "2+ Stops."
What day of the week has the most flights from DCA to CYI?
You'll generally find Tuesday the quietest day for flights, while Fridays tend to be the busiest.* However this can change from season to season and during public holidays or peak travel times.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Ronald Reagan Washington National Airport (DCA) to Chiayi Airport (CYI)?
To land at Chiayi Airport (CYI) without delays, book a flight that leaves from Ronald Reagan Washington National Airport (DCA) 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 Ronald Reagan Washington National Airport (DCA) to Chiayi Airport (CYI) last-minute?
Last-minute bookings from DCA to CYI are typically more expensive. To secure the best rates, start looking for flights early. That being said, if you can play around with your travel dates, you may find a cheap ticket just before your departure.
Can I cancel or change the date of my flight from Ronald Reagan Washington National Airport (DCA) to Chiayi Airport (CYI)?
Typically, you can cancel or modify your DCA to CYI flight. However, additional charges may apply, especially if you made your booking over 24 hours ago. Double-check your itinerary for the airline's fees and rules on flight changes, or if you want further details, head to our Customer Service portal.

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*Available to One Key members.