Latest deals
Insights
When to book
FAQs
Price Alerts

Cheap flights from Washington, D.C. to Saint John from $587

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 10/11. 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.
Search flight deals

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

Cheap round-trip flights

Logo
5:22 pm - 11:51 pmIAD-YSJ
5h 29m1 stop
Logo
5:55 am - 11:45 amYSJ-IAD
6h 50m1 stop
$587
Find Deal
Sat, Oct 11 - Sat, Oct 18
Air Canada Logo
6:00 am - 11:15 amDCA-YSJ
4h 15m1 stop
Air Canada Logo
11:55 am - 3:31 pmYSJ-DCA
4h 36m1 stop
$591Air Canada
Find Deal
Wed, Mar 11 - Sat, Mar 21
Air Canada Logo
6:00 am - 11:15 amDCA-YSJ
4h 15m1 stop
Air Canada Logo
11:55 am - 7:45 pmYSJ-DCA
8h 50m2 stops
$603Air Canada
Find Deal
Wed, Mar 11 - Thu, Mar 19
Air Canada Logo
9:00 am - 5:14 pmIAD-YSJ
7h 14m1 stop
Air Canada Logo
11:55 am - 8:29 pmYSJ-IAD
9h 34m2 stops
$609Air Canada
Find Deal
Wed, Mar 11 - Thu, Mar 19
Air Canada Logo
11:00 am - 5:40 pmDCA-YSJ
5h 40m1 stop
Air Canada Logo
6:40 pm - 10:34 pmYSJ-DCA
4h 54m1 stop
$609Air Canada
Find Deal
Sat, Oct 11 - Sat, Oct 18
Air Canada Logo
6:00 am - 11:15 amDCA-YSJ
4h 15m1 stop
Air Canada Logo
5:40 am - 10:35 pmYSJ-DCA
17h 55m1 stop
$621Air Canada
Find Deal
Wed, Mar 11 - Fri, Mar 20
United Airlines Logo
4:30 pm - 11:24 pmIAD-YSJ
5h 54m1 stop
United Airlines Logo
11:55 am - 4:21 pmYSJ-IAD
5h 26m1 stop
$683United Airlines
Find Deal
Wed, Dec 3 - Sat, Dec 6
United Airlines Logo
9:40 am - 5:14 pmDCA-YSJ
6h 34m1 stop
United Airlines Logo
11:55 am - 3:31 pmYSJ-DCA
4h 36m1 stop
$683United Airlines
Find Deal
Wed, Dec 3 - Sat, Dec 6
Logo
6:00 am - 11:15 amDCA-YSJ
4h 15m1 stop
Logo
11:55 am - 7:45 pmYSJ-DCA
8h 50m2 stops
$689
Find Deal
Wed, Dec 3 - Sat, Dec 6
United Airlines Logo
6:00 am - 5:14 pmIAD-YSJ
10h 14m2 stops
United Airlines Logo
11:55 am - 4:21 pmYSJ-IAD
5h 26m1 stop
$693United Airlines
Find Deal
Wed, Dec 3 - Sat, Dec 6

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
Dec 3
IAD4:30 pmWashington, D.C. Dulles Intl
5h 54m
1 stop
YSJ11:24 pmSaint John
Dec 6
YSJ11:55 amSaint John
5h 26m
1 stop
IAD4:21 pmWashington, D.C. Dulles Intl
$683
Find similar
United Airlines
Dec 3
IAD6:00 amWashington, D.C. Dulles Intl
10h 14m
2 stops
YSJ5:14 pmSaint John
Dec 6
YSJ11:55 amSaint John
5h 26m
1 stop
IAD4:21 pmWashington, D.C. Dulles Intl
$693
Find similar
United Airlines
Mar 13
IAD4:30 pmWashington, D.C. Dulles Intl
5h 59m
1 stop
YSJ11:29 pmSaint John
Mar 23
YSJ11:55 amSaint John
9h 38m
2 stops
IAD8:33 pmWashington, D.C. Dulles Intl
$699
Find similar

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 11
DCA6:00 amWashington, D.C. Reagan-National
4h 15m
1 stop
YSJ11:15 amSaint John
Mar 21
YSJ11:55 amSaint John
4h 36m
1 stop
DCA3:31 pmWashington, D.C. Reagan-National
$591
Find similar
Air Canada
Mar 11
DCA6:00 amWashington, D.C. Reagan-National
4h 15m
1 stop
YSJ11:15 amSaint John
Mar 19
YSJ11:55 amSaint John
8h 50m
2 stops
DCA7:45 pmWashington, D.C. Reagan-National
$603
Find similar
Air Canada
Mar 11
IAD9:00 amWashington, D.C. Dulles Intl
7h 14m
1 stop
YSJ5:14 pmSaint John
Mar 19
YSJ11:55 amSaint John
9h 34m
2 stops
IAD8:29 pmWashington, D.C. Dulles Intl
$609
Find similar

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 September 15, 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

Sat 10/11

5:22 pm-11:51 pm

1 stop5h 29m

Saint John

Sat 10/18

5:55 am-11:45 am

1 stop6h 50m

$587

Washington, D.C.Saint John

DCA - YSJ

DCAYSJ

Washington, D.C. Reagan-National

Wed 3/11

6:00 am-11:15 am

1 stop4h 15m

Saint John

Sat 3/21

11:55 am-3:31 pm

1 stop4h 36m

$591

Washington, D.C.Saint John

DCA - YSJ

DCAYSJ

Washington, D.C. Reagan-National

Wed 3/11

6:00 am-11:15 am

1 stop4h 15m

Saint John

Thu 3/19

11:55 am-7:45 pm

2 stops8h 50m

$603

Washington, D.C.Saint John

IAD - YSJ

IADYSJ

Washington, D.C. Dulles Intl

Wed 3/11

9:00 am-5:14 pm

1 stop7h 14m

Saint John

Thu 3/19

11:55 am-8:29 pm

2 stops9h 34m

$609

Washington, D.C.Saint John

DCA - YSJ

DCAYSJ

Washington, D.C. Reagan-National

Sat 10/11

11:00 am-5:40 pm

1 stop5h 40m

Saint John

Sat 10/18

6:40 pm-10:34 pm

1 stop4h 54m

$609

Washington, D.C.Saint John

DCA - YSJ

DCAYSJ

Washington, D.C. Reagan-National

Wed 3/11

6:00 am-11:15 am

1 stop4h 15m

Saint John

Fri 3/20

5:40 am-10:35 pm

1 stop17h 55m

$621

Washington, D.C.Saint John

IAD - YSJ

IADYSJ

Washington, D.C. Dulles Intl

Wed 12/3

4:30 pm-11:24 pm

1 stop5h 54m

Saint John

Sat 12/6

11:55 am-4:21 pm

1 stop5h 26m

$683

Washington, D.C.Saint John

DCA - YSJ

DCAYSJ

Washington, D.C. Reagan-National

Wed 12/3

9:40 am-5:14 pm

1 stop6h 34m

Saint John

Sat 12/6

11:55 am-3:31 pm

1 stop4h 36m

$683

Washington, D.C.Saint John

DCA - YSJ

DCAYSJ

Washington, D.C. Reagan-National

Wed 12/3

6:00 am-11:15 am

1 stop4h 15m

Saint John

Sat 12/6

11:55 am-7:45 pm

2 stops8h 50m

$689

Washington, D.C.Saint John

IAD - YSJ

IADYSJ

Washington, D.C. Dulles Intl

Wed 12/3

6:00 am-5:14 pm

2 stops10h 14m

Saint John

Sat 12/6

11:55 am-4:21 pm

1 stop5h 26m

$693

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.
Search flight deals

  • 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 15m.

  • 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.

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.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Wed 10/15
Wed 10/22
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Canada