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Cheap flights from Washington, D.C. to Saint John from $405

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 5/28. 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
0 bags

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

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
11:30 am - 10:00 am
IAD
-
YSJ
21h 30m
1 stop
Multiple Airlines Logo
10:45 am - 10:46 am
YSJ
-
IAD
25h 01m
1 stop
$405Multiple Airlines
Thu, May 28 - Mon, Jun 1
Multiple Airlines Logo
4:05 pm - 10:00 am
IAD
-
YSJ
16h 55m
1 stop
Multiple Airlines Logo
10:45 am - 6:42 pm
YSJ
-
IAD
32h 57m
2 stops
$463Multiple Airlines
Thu, May 28 - Mon, Jun 1
Multiple Airlines Logo
11:30 am - 10:00 am
IAD
-
YSJ
21h 30m
1 stop
Multiple Airlines Logo
10:45 am - 10:46 am
YSJ
-
IAD
25h 01m
1 stop
$470Multiple Airlines
Sun, May 24 - Fri, May 29
Multiple Airlines Logo
11:30 am - 10:00 am
IAD
-
YSJ
21h 30m
1 stop
Multiple Airlines Logo
10:45 am - 10:46 am
YSJ
-
IAD
25h 01m
1 stop
$475Multiple Airlines
Sun, May 24 - Wed, May 27
Air Canada Logo
9:40 am - 3:56 pm
DCA
-
YSJ
5h 16m
1 stop
Air Canada Logo
4:40 pm - 9:48 pm
YSJ
-
DCA
6h 08m
1 stop
$689Air Canada
Mon, Jul 13 - Thu, Jul 16
Air Canada Logo
6:55 pm - 3:40 pm
DCA
-
YSJ
19h 45m
2 stops
Air Canada Logo
5:35 am - 12:01 pm
YSJ
-
DCA
7h 26m
2 stops
$691Air Canada
Sat, May 23 - Tue, May 26
Air Canada Logo
6:59 am - 3:56 pm
DCA
-
YSJ
7h 57m
2 stops
Air Canada Logo
4:40 pm - 9:48 pm
YSJ
-
DCA
6h 08m
1 stop
$703Air Canada
Mon, Jul 13 - Thu, Jul 16
United Airlines Logo
9:40 am - 3:55 pm
DCA
-
YSJ
5h 15m
1 stop
United Airlines Logo
4:35 pm - 9:48 pm
YSJ
-
DCA
6h 13m
1 stop
$857United Airlines
Sat, Jun 20 - Sat, Jun 27
United Airlines Logo
9:40 am - 3:55 pm
DCA
-
YSJ
5h 15m
1 stop
United Airlines Logo
5:40 am - 1:04 pm
YSJ
-
DCA
8h 24m
2 stops
$954United Airlines
Sat, Jun 20 - Sat, Jun 27
United Airlines Logo
6:15 am - 3:56 pm
BWI
-
YSJ
8h 41m
2 stops
United Airlines Logo
4:40 pm - 12:28 am
YSJ
-
BWI
8h 48m
2 stops
$968United Airlines
Mon, Jul 13 - Wed, Jul 15

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
Jul 13
IAD6:33 amWashington, D.C. Dulles Intl
8h 23m
2 stops
YSJ3:56 pmSaint John
Jul 15
YSJ4:40 pmSaint John
7h 39m
2 stops
IAD11:19 pmWashington, D.C. Dulles Intl
$822
United Airlines
Jun 20
DCA9:40 amWashington, D.C. Reagan-National
5h 15m
1 stop
YSJ3:55 pmSaint John
Jun 27
YSJ4:35 pmSaint John
6h 13m
1 stop
DCA9:48 pmWashington, D.C. Reagan-National
$857
United Airlines
Jul 13
IAD6:33 amWashington, D.C. Dulles Intl
8h 23m
2 stops
YSJ3:56 pmSaint John
Jul 15
YSJ4:40 pmSaint John
7h 39m
2 stops
IAD11:19 pmWashington, D.C. Dulles Intl
$882

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
May 23
IAD4:05 pmWashington, D.C. Dulles Intl
6h 47m
1 stop
YSJ11:52 pmSaint John
May 30
YSJ5:00 amSaint John
7h 11m
1 stop
IAD11:11 amWashington, D.C. Dulles Intl
$653
Air Canada
May 23
IAD4:05 pmWashington, D.C. Dulles Intl
6h 47m
1 stop
YSJ11:52 pmSaint John
May 30
YSJ12:50 pmSaint John
9h 23m
2 stops
IAD9:13 pmWashington, D.C. Dulles Intl
$658
Air Canada
May 25
IAD4:05 pmWashington, D.C. Dulles Intl
6h 47m
1 stop
YSJ11:52 pmSaint John
May 29
YSJ12:50 pmSaint John
8h 50m
2 stops
IAD8:40 pmWashington, D.C. Dulles Intl
$661

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 May 11, 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

IAD - YSJ

IADYSJ

Washington, D.C. Dulles Intl

Thu 5/28

11:30 am-10:00 am

1 stop21h 30m

Saint John

Mon 6/1

10:45 am-10:46 am

1 stop25h 01m

$405

Washington, D.C.Saint John

IAD - YSJ

IADYSJ

Washington, D.C. Dulles Intl

Thu 5/28

4:05 pm-10:00 am

1 stop16h 55m

Saint John

Mon 6/1

10:45 am-6:42 pm

2 stops32h 57m

$463

Washington, D.C.Saint John

IAD - YSJ

IADYSJ

Washington, D.C. Dulles Intl

Sun 5/24

11:30 am-10:00 am

1 stop21h 30m

Saint John

Fri 5/29

10:45 am-10:46 am

1 stop25h 01m

$470

Washington, D.C.Saint John

IAD - YSJ

IADYSJ

Washington, D.C. Dulles Intl

Sun 5/24

11:30 am-10:00 am

1 stop21h 30m

Saint John

Wed 5/27

10:45 am-10:46 am

1 stop25h 01m

$475
Quickest round-trip

Washington, D.C.Saint John

DCA - YSJ

DCAYSJ

Washington, D.C. Reagan-National

Mon 7/13

9:40 am-3:56 pm

1 stop5h 16m

Saint John

Thu 7/16

4:40 pm-9:48 pm

1 stop6h 08m

$689

Washington, D.C.Saint John

DCA - YSJ

DCAYSJ

Washington, D.C. Reagan-National

Sat 5/23

6:55 pm-3:40 pm

2 stops19h 45m

Saint John

Tue 5/26

5:35 am-12:01 pm

2 stops7h 26m

$691

Washington, D.C.Saint John

DCA - YSJ

DCAYSJ

Washington, D.C. Reagan-National

Mon 7/13

6:59 am-3:56 pm

2 stops7h 57m

Saint John

Thu 7/16

4:40 pm-9:48 pm

1 stop6h 08m

$703

Washington, D.C.Saint John

DCA - YSJ

DCAYSJ

Washington, D.C. Reagan-National

Sat 6/20

9:40 am-3:55 pm

1 stop5h 15m

Saint John

Sat 6/27

4:35 pm-9:48 pm

1 stop6h 13m

$857

Washington, D.C.Saint John

DCA - YSJ

DCAYSJ

Washington, D.C. Reagan-National

Sat 6/20

9:40 am-3:55 pm

1 stop5h 15m

Saint John

Sat 6/27

5:40 am-1:04 pm

2 stops8h 24m

$954

BaltimoreSaint John

BWI - YSJ

BWIYSJ

Baltimore/Washington

Mon 7/13

6:15 am-3:56 pm

2 stops8h 41m

Saint John

Wed 7/15

4:40 pm-12:28 am

2 stops8h 48m

$968

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 5h 35m 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 11h 04m.

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 11m

Direct flights

None
The fastest flight from Washington, D.C. to Saint John takes 5h 11m
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 11m.

  • 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
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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