$491 Cheap Flights from Washington (DCA) to Saint John (YSJ)

View $491 flight on Fri, Dec 19, 2025Opens in a new window

Popular airlines from Ronald Reagan Washington National Airport (DCA) to Saint John, NB (YSJ)

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Cheap Flights from Washington to Saint John (DCA-YSJ)

Prices were available within the past 7 days and start at $491 for one-way flights and for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frequently asked questions

How much does a flight from Ronald Reagan Washington National Airport (DCA) to Saint John Airport (YSJ) cost?
Grab a cheap one-way flight from $491 or cheap return flight from Ronald Reagan Washington National Airport (DCA) to Saint John Airport (YSJ) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from Ronald Reagan Washington National Airport (DCA) to Saint John Airport (YSJ)?
Flying in may help you find better deals, as it's the cheapest month for flights between DCA and YSJ. You'll usually find the lowest prices during the off-season.
What is the cheapest airline that flies from Ronald Reagan Washington National Airport (DCA) to Saint John Airport (YSJ)?
Expedia's filter tool lets you easily compare travel time, airlines and fares all in one place. Select your preferences, then sort by "Price (lowest to highest)" to find out which carrier offers the cheapest DCA to YSJ flight.
How many flights per day from Ronald Reagan Washington National Airport (DCA) to Saint John Airport (YSJ)?
Nonstop flights from Ronald Reagan Washington National Airport (DCA) to Saint John Airport (YSJ) aren't available daily, so you'll need to take a flight with a layover. Explore your options with Expedia's filters. Enter your dates and select either "1 Stop" or "2+ Stops."
What day of the week has the most flights from DCA to YSJ?
You'll typically find Tuesday the quietest day for flights, while Fridays are often 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 Saint John Airport (YSJ)?
To touch down at Saint John Airport (YSJ) on schedule, opt for a flight that takes off 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 Saint John Airport (YSJ) last-minute?
Last-minute bookings from DCA to YSJ are typically more expensive. To secure the best rates, start looking for flights well in advance. That being said, if you can play around with your travel dates, it's possible to find a cheap fare right before your trip.
Is it cheaper to book a DCA to YSJ flight and hotel package?
Compared with arranging flights and hotels separately, booking a DCA to YSJ flight and hotel package with Expedia could lead to significant savings. Better yet, having it all in one place takes the hassle out of travel planning. Just secure your flights and select from our extensive range of stays, then customize your trip with extras like activities and car rentals.
Can I cancel or change the date of my flight from Ronald Reagan Washington National Airport (DCA) to Saint John Airport (YSJ)?
Typically, you're able to reschedule or cancel your DCA to YSJ flight. However, there may be additional fees, especially if you made your booking over 24 hours ago. Double-check your itinerary for the airline's rules and fees on flight changes, or if you'd like further information, head to our Customer Service portal.

Travel information

Origin airport
Ronald Reagan Washington National
Destination airport
Saint John
Distance
725 mi

Book with confidence

Washington to Saint John Flights

The cheapest times to fly from Washington to Saint John

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

 

The best time to book a flight from Washington to Saint John

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

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 Saint John in 2025. You can also book with separate airlines for your outbound and return journeys, from $491 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 Saint John 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 Saint John 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.

 

Washington to Saint John Flights

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*Available to One Key members.