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St John

$674+ 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 10/27. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — YSJ
Feb 25 — Mar 41
Wed 2/25
Wed 3/4
1 adult, Economy
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Cheap flight deals from Dulles Intl to St John

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 January 26, 2026.

This Air Canada deal was found by Cheapflights users on 1/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/279:45 am
IAD
-
YSJ
1 stop4h 55m
Air Canada
Fri 10/304:20 pm
YSJ
-
IAD
1 stop5h 34m
Air Canada
Deal found 1/24$674
This Air Canada deal was found by Cheapflights users on 1/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/139:45 am
IAD
-
YSJ
1 stop5h 05m
Air Canada
Tue 6/1612:20 pm
YSJ
-
IAD
1 stop9h 09m
Air Canada
Deal found 1/26$703
This Air Canada deal was found by Cheapflights users on 1/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/264:25 pm
IAD
-
YSJ
1 stop6h 25m
Air Canada
Fri 8/712:20 pm
YSJ
-
IAD
1 stop9h 04m
Air Canada
Deal found 1/25$708
This Air Canada deal was found by Cheapflights users on 1/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/74:05 pm
IAD
-
YSJ
1 stop6h 45m
Air Canada
Mon 10/125:55 am
YSJ
-
IAD
1 stop10h 31m
Air Canada
Deal found 1/26$719
This Air Canada deal was found by Cheapflights users on 1/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/74:05 pm
IAD
-
YSJ
1 stop6h 45m
Air Canada
Sun 10/1111:35 am
YSJ
-
IAD
2 stops9h 47m
Air Canada
Deal found 1/26$727
This Air Canada deal was found by Cheapflights users on 1/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/74:05 pm
IAD
-
YSJ
1 stop6h 45m
Air Canada
Tue 10/135:55 am
YSJ
-
IAD
1 stop10h 31m
Air Canada
Deal found 1/26$753
This Air Canada deal was found by Cheapflights users on 1/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/224:30 pm
IAD
-
YSJ
1 stop5h 59m
Air Canada
Sun 3/111:30 am
YSJ
-
IAD
1 stop10h 51m
Air Canada
Deal found 1/25$762
This United Airlines deal was found by Cheapflights users on 1/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/276:00 am
IAD
-
YSJ
2 stops8h 40m
United Airlines
Fri 10/304:20 pm
YSJ
-
IAD
1 stop5h 34m
United Airlines
Deal found 1/25$769
This United Airlines deal was found by Cheapflights users on 1/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/139:45 am
IAD
-
YSJ
1 stop5h 05m
United Airlines
Tue 6/164:30 pm
YSJ
-
IAD
2 stops7h 30m
United Airlines
Deal found 1/26$775
This Air Canada deal was found by Cheapflights users on 1/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/88:19 am
IAD
-
YSJ
1 stop8h 26m
Air Canada
Mon 10/125:55 am
YSJ
-
IAD
1 stop10h 31m
Air Canada
Deal found 1/26$829
This United Airlines deal was found by Cheapflights users on 1/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/226:00 am
IAD
-
YSJ
2 stops8h 40m
United Airlines
Sun 3/14:15 pm
YSJ
-
IAD
1 stop5h 39m
United Airlines
Deal found 1/25$882

Find flight deals from Dulles Intl to St John

Discover tips and strategies to find the most affordable flight options for your journey from Dulles Intl (IAD) to St John (YSJ). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated January 26, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$665
Provider with most accurate pricing for Washington, D.C. Dulles Intl-Saint John flight deals.
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Provider most trusted by Cheapflights users for Washington, D.C. Dulles Intl-Saint John flights.
Search Deals
From Washington, D.C. Dulles Intl to Saint John
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Dulles Intl to St John that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated January 26, 2026.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Saint John that are best for you.

Fly from

Dulles Intl

Fly to

St John

Route

Depart

Return

Price

Washington, D.C.Saint John

IAD - YSJ

IADYSJ

Washington, D.C. Dulles Intl

Sun 2/22

4:30 pm-11:29 pm

1 stop5h 59m

Saint John

Sun 3/1

11:30 am-9:21 pm

1 stop10h 51m

$762

Washington, D.C.Saint John

IAD - YSJ

IADYSJ

Washington, D.C. Dulles Intl

Sat 6/13

9:45 am-3:50 pm

1 stop5h 05m

Saint John

Tue 6/16

4:30 pm-11:00 pm

2 stops7h 30m

$775

Washington, D.C.Saint John

IAD - YSJ

IADYSJ

Washington, D.C. Dulles Intl

Sun 2/22

6:00 am-3:40 pm

2 stops8h 40m

Saint John

Sun 3/1

4:15 pm-8:54 pm

1 stop5h 39m

$882

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/25

  • 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.
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

Find useful and relevant information for your journey from Dulles Intl to St John. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • 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 5h 05m. Fly via Air Canada or United Airlines to get the fastest option. The distance from Washington, D.C. Dulles Intl Airport to Saint John is about 736 mi. This flight may include one or multiple stops.

  • 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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