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Cheap flights from Washington, D.C. Dulles Intl Airport to Saint John from $598

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Washington, D.C. Dulles Intl Airport to Saint John departing on 7/23. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Washington, D.C. Dulles Intl Airport to Saint John

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
3:50 pm - 10:00 am
IAD
-
YSJ
17h 10m
1 stop
Multiple Airlines Logo
10:45 am - 10:45 am
YSJ
-
IAD
25h 00m
1 stop
$598Multiple Airlines
Thu, Jul 23 - Fri, Jul 31
Air Canada Logo
4:05 pm - 11:52 pm
IAD
-
YSJ
6h 47m
1 stop
Air Canada Logo
5:35 am - 11:11 am
YSJ
-
IAD
6h 36m
1 stop
$633Air Canada
Tue, Jun 16 - Wed, Jun 17
Air Canada Logo
4:05 pm - 11:52 pm
IAD
-
YSJ
6h 47m
1 stop
Air Canada Logo
5:35 am - 11:11 am
YSJ
-
IAD
6h 36m
1 stop
$634Air Canada
Tue, Jun 16 - Wed, Jun 17
Air Canada Logo
4:05 pm - 11:52 pm
IAD
-
YSJ
6h 47m
1 stop
Air Canada Logo
5:35 am - 3:03 pm
YSJ
-
IAD
10h 28m
2 stops
$642Air Canada
Tue, Jun 16 - Wed, Jun 17
Air Canada Logo
9:55 am - 11:52 pm
IAD
-
YSJ
12h 57m
1 stop
Air Canada Logo
5:35 am - 11:11 am
YSJ
-
IAD
6h 36m
1 stop
$650Air Canada
Tue, Jun 16 - Wed, Jun 17
Air Canada Logo
8:18 am - 11:52 pm
IAD
-
YSJ
14h 34m
2 stops
Air Canada Logo
5:35 am - 11:11 am
YSJ
-
IAD
6h 36m
1 stop
$656Air Canada
Tue, Jun 16 - Wed, Jun 17
Air Canada Logo
8:18 am - 11:52 pm
IAD
-
YSJ
14h 34m
2 stops
Air Canada Logo
5:35 am - 3:03 pm
YSJ
-
IAD
10h 28m
2 stops
$664Air Canada
Tue, Jun 16 - Wed, Jun 17
Multiple Airlines Logo
3:50 pm - 10:00 am
IAD
-
YSJ
17h 10m
1 stop
Multiple Airlines Logo
11:30 am - 10:45 am
YSJ
-
IAD
24h 15m
2 stops
$671Multiple Airlines
Thu, Jul 23 - Fri, Jul 31
Air Canada Logo
8:18 am - 11:52 pm
IAD
-
YSJ
14h 34m
2 stops
Air Canada Logo
5:35 am - 3:03 pm
YSJ
-
IAD
10h 28m
2 stops
$672Air Canada
Tue, Jun 16 - Wed, Jun 17
Air Canada Logo
9:45 am - 3:56 pm
IAD
-
YSJ
5h 11m
1 stop
Air Canada Logo
12:50 pm - 8:24 pm
YSJ
-
IAD
8h 34m
1 stop
$718Air Canada
Sun, Jul 5 - Sun, Jul 12

Air Canada flights from Washington, D.C. Dulles Intl Airport to Saint John

Our best Air Canada deals on Washington, D.C. Dulles Intl Airport to Saint John flight tickets
Air Canada
Jun 16
IAD4:05 pmWashington, D.C. Dulles Intl
6h 47m
1 stop
YSJ11:52 pmSaint John
Jun 17
YSJ5:35 amSaint John
6h 36m
1 stop
IAD11:11 amWashington, D.C. Dulles Intl
$633
Air Canada
Jun 16
IAD4:05 pmWashington, D.C. Dulles Intl
6h 47m
1 stop
YSJ11:52 pmSaint John
Jun 17
YSJ5:35 amSaint John
6h 36m
1 stop
IAD11:11 amWashington, D.C. Dulles Intl
$634
Air Canada
Jun 16
IAD4:05 pmWashington, D.C. Dulles Intl
6h 47m
1 stop
YSJ11:52 pmSaint John
Jun 17
YSJ5:35 amSaint John
10h 28m
2 stops
IAD3:03 pmWashington, D.C. Dulles Intl
$642

United Airlines flights from Washington, D.C. Dulles Intl Airport to Saint John

Our best United Airlines deals on Washington, D.C. Dulles Intl Airport to Saint John flight tickets
United Airlines
Jul 5
IAD9:45 amWashington, D.C. Dulles Intl
5h 11m
1 stop
YSJ3:56 pmSaint John
Jul 12
YSJ12:50 pmSaint John
11h 29m
2 stops
IAD11:19 pmWashington, D.C. Dulles Intl
$817
United Airlines
Jun 21
IAD4:00 pmWashington, D.C. Dulles Intl
6h 50m
1 stop
YSJ11:50 pmSaint John
Jun 27
YSJ5:40 amSaint John
14h 22m
2 stops
IAD7:02 pmWashington, D.C. Dulles Intl
$910

momondo Fare Finder

 
Customize your flight search to find flights from Washington, D.C. Dulles Intl Airport to Saint 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, momondo users made 832,500 searches. Data last updated May 23, 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

Thu 7/23

3:50 pm-10:00 am

1 stop17h 10m

Saint John

Fri 7/31

10:45 am-10:45 am

1 stop25h 00m

$598
Quickest round-trip

Washington, D.C.Saint John

IAD - YSJ

IADYSJ

Washington, D.C. Dulles Intl

Tue 6/16

4:05 pm-11:52 pm

1 stop6h 47m

Saint John

Wed 6/17

5:35 am-11:11 am

1 stop6h 36m

$633

Washington, D.C.Saint John

IAD - YSJ

IADYSJ

Washington, D.C. Dulles Intl

Tue 6/16

4:05 pm-11:52 pm

1 stop6h 47m

Saint John

Wed 6/17

5:35 am-11:11 am

1 stop6h 36m

$634

Washington, D.C.Saint John

IAD - YSJ

IADYSJ

Washington, D.C. Dulles Intl

Tue 6/16

4:05 pm-11:52 pm

1 stop6h 47m

Saint John

Wed 6/17

5:35 am-3:03 pm

2 stops10h 28m

$642

Washington, D.C.Saint John

IAD - YSJ

IADYSJ

Washington, D.C. Dulles Intl

Tue 6/16

9:55 am-11:52 pm

1 stop12h 57m

Saint John

Wed 6/17

5:35 am-11:11 am

1 stop6h 36m

$650

Washington, D.C.Saint John

IAD - YSJ

IADYSJ

Washington, D.C. Dulles Intl

Tue 6/16

8:18 am-11:52 pm

2 stops14h 34m

Saint John

Wed 6/17

5:35 am-11:11 am

1 stop6h 36m

$656

Washington, D.C.Saint John

IAD - YSJ

IADYSJ

Washington, D.C. Dulles Intl

Tue 6/16

8:18 am-11:52 pm

2 stops14h 34m

Saint John

Wed 6/17

5:35 am-3:03 pm

2 stops10h 28m

$664

Washington, D.C.Saint John

IAD - YSJ

IADYSJ

Washington, D.C. Dulles Intl

Thu 7/23

3:50 pm-10:00 am

1 stop17h 10m

Saint John

Fri 7/31

11:30 am-10:45 am

2 stops24h 15m

$671

Washington, D.C.Saint John

IAD - YSJ

IADYSJ

Washington, D.C. Dulles Intl

Tue 6/16

8:18 am-11:52 pm

2 stops14h 34m

Saint John

Wed 6/17

5:35 am-3:03 pm

2 stops10h 28m

$672

Washington, D.C.Saint John

IAD - YSJ

IADYSJ

Washington, D.C. Dulles Intl

Sun 7/5

9:45 am-3:56 pm

1 stop5h 11m

Saint John

Sun 7/12

12:50 pm-8:24 pm

1 stop8h 34m

$718

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

When to book flights from Washington, D.C. Dulles Intl Airport to Saint John

Are you open to changing your travel dates? Check out the ideal times to fly from Washington, D.C. Dulles Intl Airport to Saint John according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Washington, D.C. Dulles Intl Airport to Saint John (IAD to YSJ) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Washington, D.C. Dulles Intl Airport to Saint John

Fastest flight time

5h 11m

Direct flights

None
The fastest flight from Washington, D.C. Dulles Intl Airport to Saint John takes 5h 11m
There are no direct flights from Washington, D.C. Dulles Intl Airport to Saint John. There are no popular flight routes from Washington, D.C. Dulles Intl Airport to Saint John.
Search flight deals

Frequently asked questions about flying from Washington, D.C. Dulles Intl Airport to Saint John

  • How far is Washington, D.C. Dulles Intl to Saint John by plane?

    A flight from Washington, D.C. Dulles Intl to Saint John will travel around 727.2 mi. 5h 11m is a normal flight duration for this route.

  • When did momondo last update prices for flights from Washington, D.C. Dulles Intl Airport to Saint John Airport?

    Prices for flights from Washington, D.C. Dulles Intl Airport to Saint John Airport were last updated today.

  • How old do you have to be to fly from Washington, D.C. Dulles Intl Airport to Saint John Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Washington, D.C. Dulles Intl Airport to Saint John Airport.

  • What documentation or ID do you need to fly to Saint John Airport?

    The travel and health documents required for your trip to Saint John Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Saint John Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Frequently asked questions about flying from Washington, D.C. Dulles Intl Airport to Saint John

  • How do I get Price Alerts for flights from Washington, D.C. Dulles Intl Airport to Saint John?

    Price Alerts will notify you by email when the price for flights to Saint John from Washington, D.C. Dulles Intl Airport decreases. To activate this, select your desired travel dates and search for offers. While browsing through offers you’ll see the Price Alert widget toggle. Click it to turn on notifications.

  • How can I save money on flights from Washington, D.C. Dulles Intl Airport to Saint John with momondo?

    By using tools like our “Price Calendar”, you can see the best day to fly round-trip for your travels. Our “Price Forecast” tool uses AI to predict whether you should purchase or hold off on booking for potentially cheaper prices. Explore shows you all flight options from a city or airport to build your own unique adventure. The Discover blog also provides valuable insights for saving money while booking your experience. After searching you can toggle on “Price Alerts” to track prices for your desired flight and book at the ideal moment.

  • How does momondo find its flight prices?

    momondo shows deals across 700+ competitors all at once. momondo is active in 30 international markets, so you can have access to a wide range of options from airlines and OTAs alike.

Traveling to a place near Saint John?

Book flights to Saint John if you plan to visit one of these locations
Bridgetown
Middleton

Why use momondo?

Why should I use momondo to find a flight deal from Washington, D.C. to Saint John?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Washington, D.C. to Saint John. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Washington, D.C. to Saint John with flexible booking policies on momondo?

Yes. All flights to Saint John from Washington, D.C. on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Washington, D.C. to Saint John?

Once all potential Washington, D.C. to Saint John flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Washington, D.C. to Saint John right now. Can momondo alert me if prices change?

Price alerts on flights to Saint John from Washington, D.C. are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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