How long is the flight from Washington, D.C. Dulles Intl Airport to Saint John?

There are many flights that can get you from Washington, D.C. Dulles Intl Airport to Saint John in 6h 51m. Fly via Air Canada to get the fastest option. The distance from Washington, D.C. Dulles Intl Airport to Saint John is about 736 mi.

In terms of precipitation, rainfall in Saint John ranges from 3.2 - 5.3 inches per month. November is typically the wettest month, when rainfall can reach 5.3 in. August is typically the driest time to visit Saint John when rainfall is around 3.2 in.

If weather is an important factor for your trip to Saint John, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 62.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 17.6 F).

What is the cheapest time of day to fly from IAD to YSJ?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Washington, D.C. Dulles Intl Airport to Saint John as you normally would.

Most accurate provider : When it comes to deals on Washington, D.C. Dulles Intl Airport-Saint John 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-Saint John flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Washington, D.C. Dulles Intl Airport-Saint John 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-Saint John 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-Saint John flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

What airport do you fly into for flights to Saint John from Washington, D.C. Dulles Intl?

Located just 9.4 mi from the city center, Saint John is the airport most travelers will use when flying to Saint John from Washington, D.C. Dulles Intl. Booking flights from Washington, D.C. Dulles Intl to Saint John (YSJ) should be relatively easy as there are 0 daily inbound flights from Washington, D.C. Dulles Intl from 0 different airlines.

Can I find deals for flights from Dulles Intl to St John that include hotel bookings?

Yes. In addition to deals on Dulles Intl to St John flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Dulles Intl to St John?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Dulles Intl to St John.

Can I find deals for business class flights from Dulles Intl to St John?

Yes. Cheapflights offers flight deals from Dulles Intl to St John by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$566+ Cheap Flights from Washington, D.C. Dulles Intl Airport to Saint John

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Cheap flight deals from Dulles Intl to St John

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Last-minute

Cheapest flights from Dulles Intl to St John
Explore the most affordable flight options available from Dulles Intl to St John. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 10, 2026.

Wed 10/144:00 pm -

1 stop6h 51m

Sat 10/1712:50 pm -

2 stops9h 24m

Deal found 9/8

$566

Thu 10/2210:19 pm -

1 stop12h 32m

Sun 10/255:00 am -

1 stop11h 45m

Deal found 9/7

$697

Wed 9/234:00 pm -

1 stop6h 51m

Sat 9/265:00 am -

2 stops11h 00m

Deal found 9/5

$709

Last-minute flights from Dulles Intl to St John
Discover last-minute flight deals from Dulles Intl to St John. Data last updated September 10, 2026 and is based on user searches.

Wed 9/234:00 pm -

1 stop6h 51m

Sat 9/265:00 am -

2 stops11h 00m

Deal found 9/5

$709

Wed 10/144:00 pm -

1 stop6h 51m

Sat 10/1712:50 pm -

2 stops9h 24m

Deal found 9/8

$566

Thu 10/2210:19 pm -

1 stop12h 32m

Sun 10/255:00 am -

1 stop11h 45m

Deal found 9/7

$697

Sun 10/254:30 pm -

1 stop5h 54m

Sun 11/15:15 am -

1 stop11h 30m

Deal found 9/10

$678

Find flight deals from Dulles Intl to St John

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Round-trip from	$566 (Air Canada)

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Washington, D.C.Saint John

IAD Washington, D.C. Dulles Intl - YSJ Saint John

IADYSJ

Washington, D.C. Dulles Intl

Wed 10/14

4:00 pm-11:51 pm

1 stop6h 51m

Saint John

Sat 10/17

5:00 am-8:25 pm

1 stop16h 25m

$585

Quickest round-trip

Washington, D.C.Saint John

IAD Washington, D.C. Dulles Intl - YSJ Saint John

IADYSJ

Washington, D.C. Dulles Intl

Wed 9/23

4:00 pm-11:51 pm

1 stop6h 51m

Saint John

Sat 9/26

5:00 am-3:00 pm

2 stops11h 00m

$709

Washington, D.C.Saint John

IAD Washington, D.C. Dulles Intl - YSJ Saint John

IADYSJ

Washington, D.C. Dulles Intl

Thu 10/22

6:45 am-3:59 pm

2 stops8h 14m

Saint John

Sun 10/25

5:00 am-3:45 pm

1 stop11h 45m

$862

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/8

Sorted by cheapest first

Most accurate provider: When it comes to deals on Washington, D.C. Dulles Intl Airport-Saint John 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-Saint John flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Washington, D.C. Dulles Intl Airport-Saint John 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-Saint John 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-Saint John 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 St John

Have a flexible travel schedule? Discover the best time to fly to St John from Dulles Intl with our price prediction graph.

IAD-YSJ

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.

Related info for your journey

What airport do you fly into for flights to Saint John from Washington, D.C. Dulles Intl?
Located just 9.4 mi from the city center, Saint John is the airport most travelers will use when flying to Saint John from Washington, D.C. Dulles Intl. Booking flights from Washington, D.C. Dulles Intl to Saint John (YSJ) should be relatively easy as there are 0 daily inbound flights from Washington, D.C. Dulles Intl from 0 different airlines.
How long is the flight from Washington, D.C. Dulles Intl Airport to Saint John?
There are many flights that can get you from Washington, D.C. Dulles Intl Airport to Saint John in 6h 51m. Fly via Air Canada to get the fastest option. The distance from Washington, D.C. Dulles Intl Airport to Saint John is about 736 mi.
Can I find deals for flights from Dulles Intl to St John that include hotel bookings?
Yes. In addition to deals on Dulles Intl to St John flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Dulles Intl to St John?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Dulles Intl to St John.
Can I find deals for business class flights from Dulles Intl to St John?
Yes. Cheapflights offers flight deals from Dulles Intl to St John by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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$566+ Cheap flights from Dulles Intl (IAD) to Saint John (YSJ)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/14. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Dulles Intl to St John with Cheapflights

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Cheap flight deals from Dulles Intl to St John

Cheapest flights from Dulles Intl to St JohnExplore the most affordable flight options available from Dulles Intl to St John. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 10, 2026.

Explore the most affordable flight options available from Dulles Intl to St John. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 10, 2026.

Best flights from Dulles Intl to St JohnDiscover carefully curated flight deals from Dulles Intl to St John that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 10, 2026.

Discover carefully curated flight deals from Dulles Intl to St John that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 10, 2026.

Last-minute flights from Dulles Intl to St JohnDiscover last-minute flight deals from Dulles Intl to St John. Data last updated September 10, 2026 and is based on user searches.

Discover last-minute flight deals from Dulles Intl to St John. Data last updated September 10, 2026 and is based on user searches.

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Best time to book a flight from Dulles Intl to St John

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Related info for your journey

What airport do you fly into for flights to Saint John from Washington, D.C. Dulles Intl?

How long is the flight from Washington, D.C. Dulles Intl Airport to Saint John?

Can I find deals for flights from Dulles Intl to St John that include hotel bookings?

How can I find direct flights from Dulles Intl to St John?

Can I find deals for business class flights from Dulles Intl to St John?

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Dulles Intl and St John flights

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Cheapest flights from Dulles Intl to St John
Explore the most affordable flight options available from Dulles Intl to St John. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 10, 2026.

Best flights from Dulles Intl to St John
Discover carefully curated flight deals from Dulles Intl to St John that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 10, 2026.

Last-minute flights from Dulles Intl to St John
Discover last-minute flight deals from Dulles Intl to St John. Data last updated September 10, 2026 and is based on user searches.