Cheap flights from Washington, D.C. to Saint John from $536

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 9/18. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Washington, D.C. to Saint John

Cheap round-trip flights

 Logo
11:35 am - 10:00 amIAD-YSJ
21h 25m1 stop
 Logo
12:00 pm - 3:06 pmYSJ-IAD
28h 06m2 stops
Thu, Sep 18 - Mon, Sep 29
Air Canada Logo
3:36 pm - 11:51 pmIAD-YSJ
7h 15m1 stop
Air Canada Logo
5:55 am - 9:38 amYSJ-IAD
4h 43m1 stop
$625Air Canada
Find Deal
Wed, Oct 1 - Mon, Oct 6
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
$625Air Canada
Find Deal
Wed, Oct 1 - Mon, Oct 6
Air Canada Logo
8:16 am - 5:40 pmIAD-YSJ
8h 24m2 stops
Air Canada Logo
5:55 am - 9:38 amYSJ-IAD
4h 43m1 stop
$630Air Canada
Find Deal
Wed, Oct 1 - Sun, Oct 5
Air Canada Logo
11:00 am - 5:40 pmDCA-YSJ
5h 40m1 stop
Air Canada Logo
5:55 am - 12:08 pmYSJ-DCA
7h 13m2 stops
$630Air Canada
Find Deal
Wed, Oct 1 - Sun, Oct 5
Air Canada Logo
8:16 am - 5:40 pmIAD-YSJ
8h 24m2 stops
Air Canada Logo
5:55 am - 4:28 pmYSJ-IAD
11h 33m2 stops
$635Air Canada
Find Deal
Wed, Oct 1 - Tue, Oct 7
 Logo
6:45 am - 10:00 amBWI-YSJ
26h 15m2 stops
 Logo
12:00 pm - 3:32 pmYSJ-BWI
28h 32m3 stops
Thu, Sep 11 - Thu, Sep 18
United Airlines Logo
6:29 am - 5:46 pmBWI-YSJ
10h 17m2 stops
United Airlines Logo
11:35 am - 9:22 pmYSJ-BWI
10h 47m2 stops
$871United Airlines
Find Deal
Sun, Sep 28 - Sat, Oct 4
United Airlines Logo
6:15 am - 5:46 pmBWI-YSJ
10h 31m2 stops
United Airlines Logo
5:55 am - 9:42 pmYSJ-BWI
16h 47m2 stops
$877United Airlines
Find Deal
Sat, Sep 13 - Sat, Sep 20
United Airlines Logo
10:18 pm - 10:49 amIAD-YSJ
11h 31m2 stops
United Airlines Logo
11:35 am - 7:30 amYSJ-IAD
20h 55m2 stops
$881United Airlines
Find Deal
Sat, Sep 13 - Sat, Sep 20

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 28
BWI6:29 amBaltimore/Washington
10h 17m
2 stops
YSJ5:46 pmSaint John
Oct 4
YSJ11:35 amSaint John
10h 47m
2 stops
BWI9:22 pmBaltimore/Washington
United Airlines
Sep 13
BWI6:15 amBaltimore/Washington
10h 31m
2 stops
YSJ5:46 pmSaint John
Sep 20
YSJ5:55 amSaint John
16h 47m
2 stops
BWI9:42 pmBaltimore/Washington
United Airlines
Sep 13
IAD10:18 pmWashington, D.C. Dulles Intl
11h 31m
2 stops
YSJ10:49 amSaint John
Sep 20
YSJ11:35 amSaint John
20h 55m
2 stops
IAD7:30 amWashington, D.C. Dulles Intl

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
Oct 1
IAD3:36 pmWashington, D.C. Dulles Intl
7h 15m
1 stop
YSJ11:51 pmSaint John
Oct 6
YSJ5:55 amSaint John
4h 43m
1 stop
IAD9:38 amWashington, D.C. Dulles Intl
Air Canada
Oct 1
IAD8:16 amWashington, D.C. Dulles Intl
8h 24m
2 stops
YSJ5:40 pmSaint John
Oct 5
YSJ5:55 amSaint John
4h 43m
1 stop
IAD9:38 amWashington, D.C. Dulles Intl
Air Canada
Oct 1
IAD8:16 amWashington, D.C. Dulles Intl
8h 24m
2 stops
YSJ5:40 pmSaint John
Oct 7
YSJ5:55 amSaint John
11h 33m
2 stops
IAD4:28 pmWashington, D.C. Dulles Intl

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 July 30, 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 9/18

11:35 am-10:00 am

1 stop21h 25m

Saint John

Mon 9/29

12:00 pm-3:06 pm

2 stops28h 06m

$536

Washington, D.C.Saint John

IAD - YSJ

IADYSJ

Washington, D.C. Dulles Intl

Wed 10/1

3:36 pm-11:51 pm

1 stop7h 15m

Saint John

Mon 10/6

5:55 am-9:38 am

1 stop4h 43m

$625

Washington, D.C.Saint John

DCA - YSJ

DCAYSJ

Washington, D.C. Reagan-National

Wed 10/1

11:00 am-5:40 pm

1 stop5h 40m

Saint John

Mon 10/6

6:40 pm-10:34 pm

1 stop4h 54m

$625

Washington, D.C.Saint John

IAD - YSJ

IADYSJ

Washington, D.C. Dulles Intl

Wed 10/1

8:16 am-5:40 pm

2 stops8h 24m

Saint John

Sun 10/5

5:55 am-9:38 am

1 stop4h 43m

$630

Washington, D.C.Saint John

DCA - YSJ

DCAYSJ

Washington, D.C. Reagan-National

Wed 10/1

11:00 am-5:40 pm

1 stop5h 40m

Saint John

Sun 10/5

5:55 am-12:08 pm

2 stops7h 13m

$630

Washington, D.C.Saint John

IAD - YSJ

IADYSJ

Washington, D.C. Dulles Intl

Wed 10/1

8:16 am-5:40 pm

2 stops8h 24m

Saint John

Tue 10/7

5:55 am-4:28 pm

2 stops11h 33m

$635

BaltimoreSaint John

BWI - YSJ

BWIYSJ

Baltimore/Washington

Thu 9/11

6:45 am-10:00 am

2 stops26h 15m

Saint John

Thu 9/18

12:00 pm-3:32 pm

3 stops28h 32m

$713

BaltimoreSaint John

BWI - YSJ

BWIYSJ

Baltimore/Washington

Sun 9/28

6:29 am-5:46 pm

2 stops10h 17m

Saint John

Sat 10/4

11:35 am-9:22 pm

2 stops10h 47m

$871

BaltimoreSaint John

BWI - YSJ

BWIYSJ

Baltimore/Washington

Sat 9/13

6:15 am-5:46 pm

2 stops10h 31m

Saint John

Sat 9/20

5:55 am-9:42 pm

2 stops16h 47m

$877

Washington, D.C.Saint John

IAD - YSJ

IADYSJ

Washington, D.C. Dulles Intl

Sat 9/13

10:18 pm-10:49 am

2 stops11h 31m

Saint John

Sat 9/20

11:35 am-7:30 am

2 stops20h 55m

$881

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

Best Price Found

$536

Fastest flight time

5h 40m

Direct flights

None

Airports in Saint John

1 airport
The best flight deal from Washington, D.C. to Saint John found on momondo in the last 72 hours is $536
The fastest flight from Washington, D.C. to Saint John takes 5h 40m
There are no direct flights from Washington, D.C. to Saint John. Popular non-direct routes for this connection are Washington, D.C. Dulles Intl Airport - Saint John Airport and Washington, D.C. Reagan-National Airport - Saint John Airport.
There is 1 airport near Saint John: Saint John (YSJ)

  • 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 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.


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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