Cheap flights from Washington, D.C. Dulles Intl Airport to Saint John from $608

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 10/1. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

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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.
Air Canada Logo
9:45 am - 3:49 pm
IAD
-
YSJ
5h 04m
1 stop
Air Canada Logo
4:30 pm - 3:00 pm
YSJ
-
IAD
23h 30m
1 stop
$608Air Canada
Thu, Oct 1 - Mon, Oct 5
Air Canada Logo
4:00 pm - 11:51 pm
IAD
-
YSJ
6h 51m
1 stop
Air Canada Logo
5:40 am - 8:25 pm
YSJ
-
IAD
15h 45m
1 stop
$634Air Canada
Thu, Oct 1 - Mon, Oct 5
Air Canada Logo
9:45 am - 3:50 pm
IAD
-
YSJ
5h 05m
1 stop
Air Canada Logo
4:30 pm - 3:01 pm
YSJ
-
IAD
23h 31m
1 stop
$636Air Canada
Thu, Aug 6 - Sun, Aug 9
Air Canada Logo
4:05 pm - 11:52 pm
IAD
-
YSJ
6h 47m
1 stop
Air Canada Logo
5:00 am - 3:24 pm
YSJ
-
IAD
11h 24m
1 stop
$640Air Canada
Mon, Jun 15 - Fri, Jun 19
Air Canada Logo
4:00 pm - 11:50 pm
IAD
-
YSJ
6h 50m
1 stop
Air Canada Logo
12:50 pm - 8:24 pm
YSJ
-
IAD
8h 34m
1 stop
$641Air Canada
Tue, Jun 30 - Tue, Jul 7
Multiple Airlines Logo
9:45 am - 3:40 pm
IAD
-
YSJ
4h 55m
1 stop
Multiple Airlines Logo
4:30 pm - 8:40 pm
YSJ
-
IAD
5h 10m
1 stop
$643Multiple Airlines
Sat, May 16 - Sat, May 30
Air Canada Logo
9:55 am - 11:50 pm
IAD
-
YSJ
12h 55m
1 stop
Air Canada Logo
5:40 am - 3:04 pm
YSJ
-
IAD
10h 24m
1 stop
$686Air Canada
Fri, Jun 19 - Tue, Jun 23
Air Canada Logo
9:45 am - 3:49 pm
IAD
-
YSJ
5h 04m
1 stop
Air Canada Logo
4:30 pm - 12:14 am
YSJ
-
IAD
8h 44m
2 stops
$691Air Canada
Thu, Oct 1 - Mon, Oct 5
Air Canada Logo
12:44 pm - 11:52 pm
IAD
-
YSJ
10h 08m
2 stops
Air Canada Logo
4:30 pm - 8:40 pm
YSJ
-
IAD
5h 10m
1 stop
$693Air Canada
Mon, Jun 15 - Fri, Jun 19
Air Canada Logo
9:45 am - 3:49 pm
IAD
-
YSJ
5h 04m
1 stop
Air Canada Logo
5:40 am - 2:03 pm
YSJ
-
IAD
9h 23m
2 stops
$696Air Canada
Sat, Sep 26 - Wed, Sep 30

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
Jun 23
IAD9:45 amWashington, D.C. Dulles Intl
5h 05m
1 stop
YSJ3:50 pmSaint John
Jun 30
YSJ5:40 amSaint John
6h 40m
1 stop
IAD11:20 amWashington, D.C. Dulles Intl
$736
United Airlines
May 7
IAD6:00 amWashington, D.C. Dulles Intl
8h 40m
2 stops
YSJ3:40 pmSaint John
May 14
YSJ12:50 pmSaint John
8h 39m
1 stop
IAD8:29 pmWashington, D.C. Dulles Intl
$742
United Airlines
Jun 23
IAD6:33 amWashington, D.C. Dulles Intl
8h 17m
2 stops
YSJ3:50 pmSaint John
Jun 30
YSJ5:40 amSaint John
6h 40m
1 stop
IAD11:20 amWashington, D.C. Dulles Intl
$746

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
Oct 1
IAD9:45 amWashington, D.C. Dulles Intl
5h 04m
1 stop
YSJ3:49 pmSaint John
Oct 5
YSJ4:30 pmSaint John
23h 30m
1 stop
IAD3:00 pmWashington, D.C. Dulles Intl
$608
Air Canada
Oct 1
IAD9:45 amWashington, D.C. Dulles Intl
5h 04m
1 stop
YSJ3:49 pmSaint John
Oct 5
YSJ5:40 amSaint John
10h 45m
1 stop
IAD3:25 pmWashington, D.C. Dulles Intl
$629
Air Canada
Oct 1
IAD4:00 pmWashington, D.C. Dulles Intl
6h 51m
1 stop
YSJ11:51 pmSaint John
Oct 5
YSJ5:40 amSaint John
15h 45m
1 stop
IAD8:25 pmWashington, D.C. Dulles Intl
$634

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 April 8, 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 10/1

9:45 am-3:49 pm

1 stop5h 04m

Saint John

Mon 10/5

4:30 pm-3:00 pm

1 stop23h 30m

$608

Washington, D.C.Saint John

IAD - YSJ

IADYSJ

Washington, D.C. Dulles Intl

Thu 10/1

4:00 pm-11:51 pm

1 stop6h 51m

Saint John

Mon 10/5

5:40 am-8:25 pm

1 stop15h 45m

$634

Washington, D.C.Saint John

IAD - YSJ

IADYSJ

Washington, D.C. Dulles Intl

Thu 8/6

9:45 am-3:50 pm

1 stop5h 05m

Saint John

Sun 8/9

4:30 pm-3:01 pm

1 stop23h 31m

$636

Washington, D.C.Saint John

IAD - YSJ

IADYSJ

Washington, D.C. Dulles Intl

Mon 6/15

4:05 pm-11:52 pm

1 stop6h 47m

Saint John

Fri 6/19

5:00 am-3:24 pm

1 stop11h 24m

$640

Washington, D.C.Saint John

IAD - YSJ

IADYSJ

Washington, D.C. Dulles Intl

Tue 6/30

4:00 pm-11:50 pm

1 stop6h 50m

Saint John

Tue 7/7

12:50 pm-8:24 pm

1 stop8h 34m

$641
Quickest round-trip

Washington, D.C.Saint John

IAD - YSJ

IADYSJ

Washington, D.C. Dulles Intl

Sat 5/16

9:45 am-3:40 pm

1 stop4h 55m

Saint John

Sat 5/30

4:30 pm-8:40 pm

1 stop5h 10m

$643

Washington, D.C.Saint John

IAD - YSJ

IADYSJ

Washington, D.C. Dulles Intl

Fri 6/19

9:55 am-11:50 pm

1 stop12h 55m

Saint John

Tue 6/23

5:40 am-3:04 pm

1 stop10h 24m

$686

Washington, D.C.Saint John

IAD - YSJ

IADYSJ

Washington, D.C. Dulles Intl

Thu 10/1

9:45 am-3:49 pm

1 stop5h 04m

Saint John

Mon 10/5

4:30 pm-12:14 am

2 stops8h 44m

$691

Washington, D.C.Saint John

IAD - YSJ

IADYSJ

Washington, D.C. Dulles Intl

Mon 6/15

12:44 pm-11:52 pm

2 stops10h 08m

Saint John

Fri 6/19

4:30 pm-8:40 pm

1 stop5h 10m

$693

Washington, D.C.Saint John

IAD - YSJ

IADYSJ

Washington, D.C. Dulles Intl

Sat 9/26

9:45 am-3:49 pm

1 stop5h 04m

Saint John

Wed 9/30

5:40 am-2:03 pm

2 stops9h 23m

$696

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

4h 55m

Direct flights

None
The fastest flight from Washington, D.C. Dulles Intl Airport to Saint John takes 4h 55m
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.

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. 4h 55m 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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1 adult
Fri 5/8
Fri 5/15

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