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St John

$652+ 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 6/6. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — YSJ
Apr 12 — Apr 191
Sun 4/12
Sun 4/19
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 March 13, 2026.

This Air Canada deal was found by Cheapflights users on 3/9. 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 6/69:45 am
IAD
-
YSJ
1 stop5h 05m
Air Canada
Fri 6/125:35 am
YSJ
-
IAD
1 stop11h 37m
Air Canada
Deal found 3/9$652
This Kiwi.com deal was found by Cheapflights users on 3/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/74:05 pm
IAD
-
YSJ
1 stop16h 55m
Multiple Airlines
Fri 6/1210:45 am
YSJ
-
IAD
1 stop25h 01m
Multiple Airlines
Deal found 3/9$659
This Air Canada deal was found by Cheapflights users on 3/9. 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 5/279:45 am
IAD
-
YSJ
1 stop4h 55m
Air Canada
Sun 5/3112:50 pm
YSJ
-
IAD
1 stop8h 39m
Air Canada
Deal found 3/9$661
This Air Canada deal was found by Cheapflights users on 3/11. 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 7/149:45 am
IAD
-
YSJ
1 stop5h 05m
Air Canada
Mon 7/205:00 am
YSJ
-
IAD
1 stop12h 12m
Air Canada
Deal found 3/11$663
This Air Canada deal was found by Cheapflights users on 3/11. 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 7/149:45 am
IAD
-
YSJ
1 stop5h 05m
Air Canada
Sun 7/1912:50 pm
YSJ
-
IAD
1 stop8h 34m
Air Canada
Deal found 3/11$672
This Kiwi.com deal was found by Cheapflights users on 3/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/74:05 pm
IAD
-
YSJ
1 stop16h 55m
Multiple Airlines
Thu 6/1112:00 pm
YSJ
-
IAD
2 stops23h 46m
Multiple Airlines
Deal found 3/9$691
This Air Canada deal was found by Cheapflights users on 3/11. 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.
Mon 7/139:55 am
IAD
-
YSJ
1 stop12h 55m
Air Canada
Sat 7/185:00 am
YSJ
-
IAD
1 stop12h 12m
Air Canada
Deal found 3/11$693
This Air Canada deal was found by Cheapflights users on 3/11. 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 7/124:20 pm
IAD
-
YSJ
1 stop6h 30m
Air Canada
Sat 7/185:00 am
YSJ
-
IAD
1 stop12h 12m
Air Canada
Deal found 3/11$701
This Air Canada deal was found by Cheapflights users on 3/11. 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.
Mon 7/139:55 am
IAD
-
YSJ
1 stop12h 55m
Air Canada
Sun 7/1912:50 pm
YSJ
-
IAD
1 stop8h 34m
Air Canada
Deal found 3/11$702
This Air Canada deal was found by Cheapflights users on 3/11. 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 7/124:20 pm
IAD
-
YSJ
1 stop6h 30m
Air Canada
Sun 7/1912:50 pm
YSJ
-
IAD
1 stop8h 34m
Air Canada
Deal found 3/11$711

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 March 13, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$650
(Air Canada)
Provider with most accurate pricing for Washington, D.C. Dulles Intl-Saint John flight deals.
Search Deals
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
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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 March 13, 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

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Washington, D.C.Saint John

IAD - YSJ

IADYSJ

Washington, D.C. Dulles Intl

Sun 6/7

9:45 am-3:50 pm

1 stop5h 05m

Saint John

Thu 6/11

5:35 am-4:12 pm

1 stop11h 37m

$652

Washington, D.C.Saint John

IAD - YSJ

IADYSJ

Washington, D.C. Dulles Intl

Sun 6/7

4:05 pm-10:00 am

1 stop16h 55m

Saint John

Fri 6/12

10:45 am-10:46 am

1 stop25h 01m

$659

Washington, D.C.Saint John

IAD - YSJ

IADYSJ

Washington, D.C. Dulles Intl

Thu 7/16

9:45 am-3:50 pm

1 stop5h 05m

Saint John

Mon 7/20

5:00 am-4:12 pm

1 stop12h 12m

$663

Washington, D.C.Saint John

IAD - YSJ

IADYSJ

Washington, D.C. Dulles Intl

Tue 7/14

9:45 am-3:50 pm

1 stop5h 05m

Saint John

Fri 7/17

5:00 am-3:24 pm

1 stop11h 24m

$672

Washington, D.C.Saint John

IAD - YSJ

IADYSJ

Washington, D.C. Dulles Intl

Wed 7/15

9:45 am-3:50 pm

1 stop5h 05m

Saint John

Fri 7/17

5:00 am-3:24 pm

1 stop11h 24m

$672

Washington, D.C.Saint John

IAD - YSJ

IADYSJ

Washington, D.C. Dulles Intl

Mon 8/3

4:20 pm-12:55 am

1 stop7h 35m

Saint John

Tue 8/11

12:50 pm-8:24 pm

1 stop8h 34m

$691
Quickest round-trip

Washington, D.C.Saint John

IAD - YSJ

IADYSJ

Washington, D.C. Dulles Intl

Sat 6/6

6:33 am-3:50 pm

2 stops8h 17m

Saint John

Thu 6/11

4:30 pm-8:40 pm

1 stop5h 10m

$727

Washington, D.C.Saint John

IAD - YSJ

IADYSJ

Washington, D.C. Dulles Intl

Mon 6/8

6:33 am-3:50 pm

2 stops8h 17m

Saint John

Thu 6/11

4:30 pm-8:40 pm

1 stop5h 10m

$727

Washington, D.C.Saint John

IAD - YSJ

IADYSJ

Washington, D.C. Dulles Intl

Sun 6/7

6:33 am-3:50 pm

2 stops8h 17m

Saint John

Fri 6/12

4:30 pm-11:19 pm

2 stops7h 49m

$742

Washington, D.C.Saint John

IAD - YSJ

IADYSJ

Washington, D.C. Dulles Intl

Wed 5/27

9:45 am-3:40 pm

1 stop4h 55m

Saint John

Sun 5/31

12:50 pm-11:19 pm

2 stops11h 29m

$748

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/9

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.
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 4h 55m. 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.

See more FAQs

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