Cheap flights from Washington, D.C. to Saint John from $591

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 3/26. 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

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.

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
9:55 am - 3:35 pmIAD-YSJ
4h 40m1 stop
Air Canada Logo
11:30 am - 3:38 pmYSJ-IAD
5h 08m1 stop
$591Air Canada
Find Deal
Thu, Mar 26 - Sun, Mar 29
Air Canada Logo
9:55 am - 3:35 pmIAD-YSJ
4h 40m1 stop
Air Canada Logo
11:45 am - 8:24 pmYSJ-IAD
9h 39m2 stops
$596Air Canada
Find Deal
Thu, Mar 26 - Sun, Mar 29
Air Canada Logo
6:59 am - 3:35 pmDCA-YSJ
7h 36m2 stops
Air Canada Logo
11:45 am - 3:24 pmYSJ-DCA
4h 39m1 stop
$596Air Canada
Find Deal
Thu, Mar 26 - Sun, Mar 29
Air Canada Logo
6:59 am - 3:35 pmDCA-YSJ
7h 36m2 stops
Air Canada Logo
11:45 am - 7:59 pmYSJ-DCA
9h 14m2 stops
$608Air Canada
Find Deal
Thu, Mar 26 - Sun, Mar 29
Air Canada Logo
8:40 pm - 10:39 amDCA-YSJ
12h 59m1 stop
Air Canada Logo
11:45 am - 3:24 pmYSJ-DCA
4h 39m1 stop
$614Air Canada
Find Deal
Thu, Mar 26 - Sun, Mar 29
Air Canada Logo
9:55 am - 3:35 pmIAD-YSJ
4h 40m1 stop
Air Canada Logo
11:30 am - 3:38 pmYSJ-IAD
5h 08m1 stop
$630Air Canada
Find Deal
Thu, Mar 26 - Sun, Mar 29
Air Canada Logo
9:55 am - 3:35 pmIAD-YSJ
4h 40m1 stop
Air Canada Logo
11:45 am - 8:24 pmYSJ-IAD
9h 39m2 stops
$635Air Canada
Find Deal
Thu, Mar 26 - Sun, Mar 29
Air Canada Logo
6:59 am - 3:35 pmDCA-YSJ
7h 36m2 stops
Air Canada Logo
11:45 am - 3:24 pmYSJ-DCA
4h 39m1 stop
$635Air Canada
Find Deal
Thu, Mar 26 - Sun, Mar 29
United Airlines Logo
6:00 am - 3:35 pmIAD-YSJ
8h 35m2 stops
United Airlines Logo
5:40 am - 2:03 pmYSJ-IAD
9h 23m2 stops
$663United Airlines
Find Deal
Thu, Mar 26 - Sun, Mar 29
United Airlines Logo
6:00 am - 3:35 pmIAD-YSJ
8h 35m2 stops
United Airlines Logo
5:40 am - 2:03 pmYSJ-IAD
9h 23m2 stops
$741United Airlines
Find Deal
Thu, Mar 26 - Sun, Mar 29

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
Mar 26
IAD9:55 amWashington, D.C. Dulles Intl
4h 40m
1 stop
YSJ3:35 pmSaint John
Mar 29
YSJ11:30 amSaint John
5h 08m
1 stop
IAD3:38 pmWashington, D.C. Dulles Intl
Air Canada
Mar 26
IAD9:55 amWashington, D.C. Dulles Intl
4h 40m
1 stop
YSJ3:35 pmSaint John
Mar 29
YSJ11:45 amSaint John
9h 39m
2 stops
IAD8:24 pmWashington, D.C. Dulles Intl
Air Canada
Mar 26
DCA6:59 amWashington, D.C. Reagan-National
7h 36m
2 stops
YSJ3:35 pmSaint John
Mar 29
YSJ11:45 amSaint John
9h 14m
2 stops
DCA7:59 pmWashington, D.C. Reagan-National

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
Mar 26
IAD6:00 amWashington, D.C. Dulles Intl
8h 35m
2 stops
YSJ3:35 pmSaint John
Mar 29
YSJ5:40 amSaint John
9h 23m
2 stops
IAD2:03 pmWashington, D.C. Dulles Intl
United Airlines
Mar 26
IAD6:00 amWashington, D.C. Dulles Intl
8h 35m
2 stops
YSJ3:35 pmSaint John
Mar 29
YSJ5:40 amSaint John
9h 23m
2 stops
IAD2:03 pmWashington, D.C. Dulles Intl
United Airlines
Apr 9
BWI6:17 amBaltimore/Washington
16h 12m
2 stops
YSJ11:29 pmSaint John
Apr 13
YSJ6:15 pmSaint John
17h 04m
2 stops
BWI10:19 amBaltimore/Washington

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 November 3, 2025.
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

Washington, D.C.Saint John

IAD - YSJ

IADYSJ

Washington, D.C. Dulles Intl

Thu 3/26

9:55 am-3:35 pm

1 stop4h 40m

Saint John

Sun 3/29

11:30 am-3:38 pm

1 stop5h 08m

$591

Washington, D.C.Saint John

IAD - YSJ

IADYSJ

Washington, D.C. Dulles Intl

Thu 3/26

9:55 am-3:35 pm

1 stop4h 40m

Saint John

Sun 3/29

11:45 am-8:24 pm

2 stops9h 39m

$596

Washington, D.C.Saint John

DCA - YSJ

DCAYSJ

Washington, D.C. Reagan-National

Thu 3/26

6:59 am-3:35 pm

2 stops7h 36m

Saint John

Sun 3/29

11:45 am-3:24 pm

1 stop4h 39m

$596

Washington, D.C.Saint John

DCA - YSJ

DCAYSJ

Washington, D.C. Reagan-National

Thu 3/26

6:59 am-3:35 pm

2 stops7h 36m

Saint John

Sun 3/29

11:45 am-7:59 pm

2 stops9h 14m

$608

Washington, D.C.Saint John

DCA - YSJ

DCAYSJ

Washington, D.C. Reagan-National

Thu 3/26

8:40 pm-10:39 am

1 stop12h 59m

Saint John

Sun 3/29

11:45 am-3:24 pm

1 stop4h 39m

$614

Washington, D.C.Saint John

IAD - YSJ

IADYSJ

Washington, D.C. Dulles Intl

Thu 3/26

9:55 am-3:35 pm

1 stop4h 40m

Saint John

Sun 3/29

11:30 am-3:38 pm

1 stop5h 08m

$630

Washington, D.C.Saint John

IAD - YSJ

IADYSJ

Washington, D.C. Dulles Intl

Thu 3/26

9:55 am-3:35 pm

1 stop4h 40m

Saint John

Sun 3/29

11:45 am-8:24 pm

2 stops9h 39m

$635

Washington, D.C.Saint John

DCA - YSJ

DCAYSJ

Washington, D.C. Reagan-National

Thu 3/26

6:59 am-3:35 pm

2 stops7h 36m

Saint John

Sun 3/29

11:45 am-3:24 pm

1 stop4h 39m

$635

Washington, D.C.Saint John

IAD - YSJ

IADYSJ

Washington, D.C. Dulles Intl

Thu 3/26

6:00 am-3:35 pm

2 stops8h 35m

Saint John

Sun 3/29

5:40 am-2:03 pm

2 stops9h 23m

$663

Washington, D.C.Saint John

IAD - YSJ

IADYSJ

Washington, D.C. Dulles Intl

Thu 3/26

6:00 am-3:35 pm

2 stops8h 35m

Saint John

Sun 3/29

5:40 am-2:03 pm

2 stops9h 23m

$741

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

What is the cheapest day to depart on your flight to Saint John?

The cheapest day to depart from Washington, D.C. to Saint John is on a Saturday when prices can be found for as low as $824. On the other hand, Tuesday is the most expensive day to depart from Washington, D.C. because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $1,268.

What is the cheapest time of day to depart on your flight to Saint John?

Our most recent data shows that the best time of day to fly to Saint John is in the afternoon. Flights from Washington, D.C. to Saint John during this time can be as low as $819. Try not to purchase tickets in the morning because they tend to be around $885. Of course, these prices can vary depending on the time of year and what airport you fly to.

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

Direct flights

None
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.
  • 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 4h 40m.

  • 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

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.

An easier way to manage your Saint John trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Wed 12/3
Wed 12/10

Find better results for your trip to Canada