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Cheap flights from Washington, D.C. to Saint John from $574

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. to Saint John departing on 9/4. 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

Find the cheapest flights from Washington, D.C. to Saint John

Cheap round-trip flights

Enter your travel dates to find the best prices.
Air Canada Logo
6:55 pm - 1:25 amDCA  Washington, D.C. Reagan-National-YSJ Saint John
5h 30m1 stop Toronto Pearson Intl
Air Canada Logo
5:00 am - 8:55 amYSJ  Saint John-DCA Washington, D.C. Reagan-National
4h 55m1 stop Toronto Pearson Intl
$574Air Canada
Fri, Sep 4 - Thu, Sep 10
Air Canada Logo
6:55 pm - 1:25 amDCA  Washington, D.C. Reagan-National-YSJ Saint John
5h 30m1 stop Toronto Pearson Intl
Air Canada Logo
5:00 am - 8:52 amYSJ  Saint John-DCA Washington, D.C. Reagan-National
4h 52m1 stop Toronto Pearson Intl
$594Air Canada
Wed, Aug 26 - Wed, Sep 2
Air Canada Logo
4:20 pm - 1:25 amIAD  Washington, D.C. Dulles Intl-YSJ Saint John
8h 05m1 stop Toronto Pearson Intl
Air Canada Logo
5:00 am - 11:21 amYSJ  Saint John-IAD Washington, D.C. Dulles Intl
7h 21m1 stop Toronto Pearson Intl
$598Air Canada
Fri, Sep 4 - Thu, Sep 10
Multiple Airlines Logo
11:25 am - 10:00 amIAD  Washington, D.C. Dulles Intl-YSJ Saint John
21h 35m1 stop Toronto Island
Multiple Airlines Logo
10:45 am - 10:45 amYSJ  Saint John-IAD Washington, D.C. Dulles Intl
25h 00m1 stop Toronto Pearson Intl
$599Multiple Airlines
Thu, Sep 3 - Mon, Sep 7
Air Canada Logo
12:40 pm - 1:25 amDCA  Washington, D.C. Reagan-National-YSJ Saint John
11h 45m2 stops Ottawa Toronto Pearson Intl
Air Canada Logo
5:00 am - 8:52 amYSJ  Saint John-DCA Washington, D.C. Reagan-National
4h 52m1 stop Toronto Pearson Intl
$600Air Canada
Wed, Aug 26 - Wed, Sep 2
Air Canada Logo
12:40 pm - 1:25 amDCA  Washington, D.C. Reagan-National-YSJ Saint John
11h 45m2 stops Ottawa Toronto Pearson Intl
Air Canada Logo
5:00 am - 12:00 pmYSJ  Saint John-DCA Washington, D.C. Reagan-National
8h 00m2 stops Toronto Pearson Intl Ottawa
$605Air Canada
Wed, Aug 26 - Wed, Sep 2
Air Canada Logo
4:00 pm - 11:51 pmIAD  Washington, D.C. Dulles Intl-YSJ Saint John
6h 51m1 stop Toronto Pearson Intl
Air Canada Logo
12:50 pm - 8:25 pmYSJ  Saint John-IAD Washington, D.C. Dulles Intl
8h 35m1 stop Toronto Pearson Intl
$605Air Canada
Tue, Sep 22 - Tue, Sep 29
Air Canada Logo
6:55 pm - 11:51 amDCA  Washington, D.C. Reagan-National-YSJ Saint John
15h 56m1 stop Toronto Pearson Intl
Air Canada Logo
5:00 am - 8:55 amYSJ  Saint John-DCA Washington, D.C. Reagan-National
4h 55m1 stop Toronto Pearson Intl
$606Air Canada
Tue, Sep 8 - Tue, Sep 15
Air Canada Logo
4:00 pm - 11:51 pmIAD  Washington, D.C. Dulles Intl-YSJ Saint John
6h 51m1 stop Toronto Pearson Intl
Air Canada Logo
5:00 am - 4:07 pmYSJ  Saint John-IAD Washington, D.C. Dulles Intl
12h 07m1 stop Toronto Pearson Intl
$606Air Canada
Tue, Sep 8 - Tue, Sep 15
Air Canada Logo
8:40 pm - 11:51 amDCA  Washington, D.C. Reagan-National-YSJ Saint John
14h 11m1 stop Toronto Pearson Intl
Air Canada Logo
12:30 pm - 6:15 pmYSJ  Saint John-DCA Washington, D.C. Reagan-National
6h 45m1 stop Toronto Pearson Intl
$623Air Canada
Sun, Sep 20 - Sun, Sep 27

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

Our best Air Canada deals on Washington, D.C. to Saint John flight tickets
Air Canada
Sep 4
DCA6:55 pmWashington, D.C. Reagan-National
5h 30m
1 stop
YSJ1:25 amSaint John
Sep 10
YSJ5:00 amSaint John
4h 55m
1 stop
DCA8:55 amWashington, D.C. Reagan-National
$574
Air Canada
Aug 26
DCA6:55 pmWashington, D.C. Reagan-National
5h 30m
1 stop
YSJ1:25 amSaint John
Sep 2
YSJ5:00 amSaint John
4h 52m
1 stop
DCA8:52 amWashington, D.C. Reagan-National
$594
Air Canada
Sep 4
IAD4:20 pmWashington, D.C. Dulles Intl
8h 05m
1 stop
YSJ1:25 amSaint John
Sep 10
YSJ5:00 amSaint John
7h 21m
1 stop
IAD11:21 amWashington, D.C. Dulles Intl
$598

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

Our best United Airlines deals on Washington, D.C. to Saint John flight tickets
United Airlines
Sep 22
BWI12:10 pmBaltimore/Washington
10h 41m
2 stops
YSJ11:51 pmSaint John
Sep 29
YSJ5:00 amSaint John
9h 58m
2 stops
BWI1:58 pmBaltimore/Washington
$1,008
United Airlines
Sep 22
IAD9:45 amWashington, D.C. Dulles Intl
5h 14m
1 stop
YSJ3:59 pmSaint John
Sep 29
YSJ5:00 amSaint John
11h 56m
2 stops
IAD3:56 pmWashington, D.C. Dulles Intl
$1,010
United Airlines
Sep 22
IAD10:41 pmWashington, D.C. Dulles Intl
16h 18m
2 stops
YSJ3:59 pmSaint John
Sep 29
YSJ5:00 amSaint John
11h 56m
2 stops
IAD3:56 pmWashington, D.C. Dulles Intl
$1,020

momondo Fare Finder

 
Customize your flight search to find flights from Washington, D.C. 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 August 10, 2026.
Use the filters below to find and compare flights from Washington, D.C. to Saint John that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Washington, D.C.Saint John

DCA Washington, D.C. Reagan-National - YSJ Saint John

DCAYSJ

Washington, D.C. Reagan-National

Fri 9/4

6:55 pm-1:25 am

1 stop5h 30m

Saint John

Thu 9/10

5:00 am-8:55 am

1 stop4h 55m

$574
Quickest round-trip

Washington, D.C.Saint John

DCA Washington, D.C. Reagan-National - YSJ Saint John

DCAYSJ

Washington, D.C. Reagan-National

Wed 8/26

6:55 pm-1:25 am

1 stop5h 30m

Saint John

Wed 9/2

5:00 am-8:52 am

1 stop4h 52m

$594

Washington, D.C.Saint John

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

IADYSJ

Washington, D.C. Dulles Intl

Fri 9/4

4:20 pm-1:25 am

1 stop8h 05m

Saint John

Thu 9/10

5:00 am-11:21 am

1 stop7h 21m

$598

Washington, D.C.Saint John

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

IADYSJ

Washington, D.C. Dulles Intl

Thu 9/3

11:25 am-10:00 am

1 stop21h 35m

Saint John

Mon 9/7

10:45 am-10:45 am

1 stop25h 00m

$599

Washington, D.C.Saint John

DCA Washington, D.C. Reagan-National - YSJ Saint John

DCAYSJ

Washington, D.C. Reagan-National

Wed 8/26

12:40 pm-1:25 am

2 stops11h 45m

Saint John

Wed 9/2

5:00 am-8:52 am

1 stop4h 52m

$600

Washington, D.C.Saint John

DCA Washington, D.C. Reagan-National - YSJ Saint John

DCAYSJ

Washington, D.C. Reagan-National

Wed 8/26

12:40 pm-1:25 am

2 stops11h 45m

Saint John

Wed 9/2

5:00 am-12:00 pm

2 stops8h 00m

$605

Washington, D.C.Saint John

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

IADYSJ

Washington, D.C. Dulles Intl

Tue 9/22

4:00 pm-11:51 pm

1 stop6h 51m

Saint John

Tue 9/29

12:50 pm-8:25 pm

1 stop8h 35m

$605

Washington, D.C.Saint John

DCA Washington, D.C. Reagan-National - YSJ Saint John

DCAYSJ

Washington, D.C. Reagan-National

Tue 9/8

6:55 pm-11:51 am

1 stop15h 56m

Saint John

Tue 9/15

5:00 am-8:55 am

1 stop4h 55m

$606

Washington, D.C.Saint John

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

IADYSJ

Washington, D.C. Dulles Intl

Tue 9/8

4:00 pm-11:51 pm

1 stop6h 51m

Saint John

Tue 9/15

5:00 am-4:07 pm

1 stop12h 07m

$606

Washington, D.C.Saint John

DCA Washington, D.C. Reagan-National - YSJ Saint John

DCAYSJ

Washington, D.C. Reagan-National

Sun 9/20

8:40 pm-11:51 am

1 stop14h 11m

Saint John

Sun 9/27

12:30 pm-6:15 pm

1 stop6h 45m

$623

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

See travel insights to Saint John from

How to get the cheapest flight ticket from Washington, D.C. to Saint John

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

How long does it take to fly to Saint John?

On average, it takes 9h 21m to fly from Washington, D.C. to Saint John if you fly out of Washington, D.C. (the most popular airport in Washington, D.C.) and into Moncton (the most popular airport in Saint John). If you’re flying out of Baltimore and into Moncton, then the flight time is around 13h 34m.

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

Are you open to changing your travel dates? Check out the ideal times to fly from Washington, D.C. 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. to Saint John (WAS to YSJ) flight deals and tips

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

Fastest flight time

5h 20m

Direct flights

None
The fastest flight from Washington, D.C. to Saint John takes 5h 20m
There are no direct flights from Washington, D.C. to Saint John. There are no popular flight routes from Washington, D.C. to Saint John.
Search flight deals

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

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

    A flight from Washington, D.C. to Saint John will travel around 712.4 mi. By plane, this route typically takes 5h 20m.

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

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

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

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Washington, D.C. to Saint John Airport.

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

    The required travel and health documents for your Saint John Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Saint John Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Traveling to a place near Saint John?

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

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Washington, D.C. to Saint John. momondo saves you time and could save you money on your trip.

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

Yes. momondo enables you to select and highlight flights to Saint John from Washington, D.C. with this policy.

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

momondo helps you find the best flight between Washington, D.C. and Saint John by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

Yes momondo offers price alerts on flights to Saint John from Washington, D.C.. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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