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Cheap flights from Washington, D.C. Dulles Intl Airport to St. John's from $379

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. Dulles Intl Airport to St. John's 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.
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Find the cheapest flights from Washington, D.C. Dulles Intl Airport to St. John's

Cheap round-trip flights

Logo
11:35 am - 12:38 amIAD-YYT
11h 33m2 stops
Logo
2:55 pm - 9:05 pmYYT-IAD
7h 40m2 stops
$379
Find Deal
Thu, Sep 4 - Wed, Sep 10
Logo
11:35 am - 12:38 amIAD-YYT
11h 33m2 stops
Logo
2:00 pm - 9:05 pmYYT-IAD
8h 35m1 stop
$380
Find Deal
Thu, Sep 4 - Wed, Sep 10
Air Canada Logo
2:25 pm - 1:16 amIAD-YYT
9h 21m1 stop
Air Canada Logo
2:00 pm - 9:05 pmYYT-IAD
8h 35m1 stop
$414Air Canada
Find Deal
Thu, Sep 4 - Wed, Sep 10
Air Canada Logo
9:35 am - 10:23 pmIAD-YYT
11h 18m2 stops
Air Canada Logo
2:55 pm - 9:05 pmYYT-IAD
7h 40m2 stops
$446Air Canada
Find Deal
Fri, Sep 26 - Fri, Oct 3
Air Canada Logo
10:20 am - 9:41 pmIAD-YYT
9h 51m1 stop
Air Canada Logo
2:00 pm - 9:05 pmYYT-IAD
8h 35m1 stop
$476Air Canada
Find Deal
Sat, Sep 13 - Sat, Sep 20
Porter Airlines Logo
11:35 am - 12:38 amIAD-YYT
11h 33m2 stops
Porter Airlines Logo
6:00 am - 3:06 pmYYT-IAD
10h 36m1 stop
$478Porter Airlines
Find Deal
Mon, Sep 15 - Tue, Sep 23
Logo
11:35 am - 10:56 pmIAD-YYT
9h 51m1 stop
Logo
3:00 pm - 3:06 pmYYT-IAD
25h 36m1 stop
$482
Find Deal
Mon, Sep 15 - Tue, Sep 23
Porter Airlines Logo
4:20 pm - 12:16 pmIAD-YYT
18h 26m1 stop
Porter Airlines Logo
6:00 am - 3:06 pmYYT-IAD
10h 36m1 stop
$493Porter Airlines
Find Deal
Tue, Sep 16 - Sat, Sep 20
Porter Airlines Logo
11:35 am - 12:38 amIAD-YYT
11h 33m2 stops
Porter Airlines Logo
2:55 pm - 10:16 amYYT-IAD
20h 51m3 stops
$499Porter Airlines
Find Deal
Sun, Sep 7 - Sun, Sep 14
Air Canada Logo
9:35 am - 5:12 pmIAD-YYT
6h 07m1 stop
Air Canada Logo
2:00 pm - 9:05 pmYYT-IAD
8h 35m1 stop
$510Air Canada
Find Deal
Tue, Aug 26 - Tue, Sep 2

Air Canada flights from Washington, D.C. Dulles Intl Airport to St. John's

Our best Air Canada deals on Washington, D.C. Dulles Intl Airport to St. John's flight tickets
Air Canada
Sep 4
IAD2:25 pmWashington, D.C. Dulles Intl
9h 21m
1 stop
YYT1:16 amSt John's
Sep 10
YYT2:00 pmSt John's
8h 35m
1 stop
IAD9:05 pmWashington, D.C. Dulles Intl
$414
Find similar
Air Canada
Sep 26
IAD9:35 amWashington, D.C. Dulles Intl
11h 18m
2 stops
YYT10:23 pmSt John's
Oct 3
YYT2:55 pmSt John's
7h 40m
2 stops
IAD9:05 pmWashington, D.C. Dulles Intl
$446
Find similar
Air Canada
Sep 13
IAD10:20 amWashington, D.C. Dulles Intl
9h 51m
1 stop
YYT9:41 pmSt John's
Sep 20
YYT2:00 pmSt John's
8h 35m
1 stop
IAD9:05 pmWashington, D.C. Dulles Intl
$476
Find similar

Porter Airlines flights from Washington, D.C. Dulles Intl Airport to St. John's

Our best Porter Airlines deals on Washington, D.C. Dulles Intl Airport to St. John's flight tickets
Porter Airlines
Sep 15
IAD11:35 amWashington, D.C. Dulles Intl
11h 33m
2 stops
YYT12:38 amSt John's
Sep 23
YYT6:00 amSt John's
10h 36m
1 stop
IAD3:06 pmWashington, D.C. Dulles Intl
$478
Find similar
Porter Airlines
Sep 16
IAD4:20 pmWashington, D.C. Dulles Intl
18h 26m
1 stop
YYT12:16 pmSt John's
Sep 20
YYT6:00 amSt John's
10h 36m
1 stop
IAD3:06 pmWashington, D.C. Dulles Intl
$493
Find similar
Porter Airlines
Sep 7
IAD11:35 amWashington, D.C. Dulles Intl
11h 33m
2 stops
YYT12:38 amSt John's
Sep 14
YYT2:55 pmSt John's
20h 51m
3 stops
IAD10:16 amWashington, D.C. Dulles Intl
$499
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Washington, D.C. Dulles Intl Airport to St. John's 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 31, 2025.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to St. John's that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.St. John's

IAD - YYT

IADYYT

Washington, D.C. Dulles Intl

Thu 9/4

11:35 am-12:38 am

2 stops11h 33m

St John's

Wed 9/10

2:55 pm-9:05 pm

2 stops7h 40m

$379

Washington, D.C.St. John's

IAD - YYT

IADYYT

Washington, D.C. Dulles Intl

Thu 9/4

11:35 am-12:38 am

2 stops11h 33m

St John's

Wed 9/10

2:00 pm-9:05 pm

1 stop8h 35m

$380

Washington, D.C.St. John's

IAD - YYT

IADYYT

Washington, D.C. Dulles Intl

Thu 9/4

2:25 pm-1:16 am

1 stop9h 21m

St John's

Wed 9/10

2:00 pm-9:05 pm

1 stop8h 35m

$414

Washington, D.C.St. John's

IAD - YYT

IADYYT

Washington, D.C. Dulles Intl

Fri 9/26

9:35 am-10:23 pm

2 stops11h 18m

St John's

Fri 10/3

2:55 pm-9:05 pm

2 stops7h 40m

$446

Washington, D.C.St. John's

IAD - YYT

IADYYT

Washington, D.C. Dulles Intl

Sat 9/13

10:20 am-9:41 pm

1 stop9h 51m

St John's

Sat 9/20

2:00 pm-9:05 pm

1 stop8h 35m

$476

Washington, D.C.St. John's

IAD - YYT

IADYYT

Washington, D.C. Dulles Intl

Mon 9/15

11:35 am-12:38 am

2 stops11h 33m

St John's

Tue 9/23

6:00 am-3:06 pm

1 stop10h 36m

$478

Washington, D.C.St. John's

IAD - YYT

IADYYT

Washington, D.C. Dulles Intl

Mon 9/15

11:35 am-10:56 pm

1 stop9h 51m

St John's

Tue 9/23

3:00 pm-3:06 pm

1 stop25h 36m

$482

Washington, D.C.St. John's

IAD - YYT

IADYYT

Washington, D.C. Dulles Intl

Tue 9/16

4:20 pm-12:16 pm

1 stop18h 26m

St John's

Sat 9/20

6:00 am-3:06 pm

1 stop10h 36m

$493

Washington, D.C.St. John's

IAD - YYT

IADYYT

Washington, D.C. Dulles Intl

Sun 9/7

11:35 am-12:38 am

2 stops11h 33m

St John's

Sun 9/14

2:55 pm-10:16 am

3 stops20h 51m

$499

Washington, D.C.St. John's

IAD - YYT

IADYYT

Washington, D.C. Dulles Intl

Tue 8/26

9:35 am-5:12 pm

1 stop6h 07m

St John's

Tue 9/2

2:00 pm-9:05 pm

1 stop8h 35m

$510

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

See travel insights to St. John's from

How to get the cheapest flight ticket from Washington, D.C. Dulles Intl Airport to St. John's

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 St. John's?

Our data shows that Tuesday is the least expensive day to fly to St. John's. Tickets to fly out on this day can be as low as $666. Flights from Washington, D.C. Dulles Intl Airport to St. John's on a Saturday will generally be more expensive and average around $824. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to St. John's?

The cheapest time of day to fly to St. John's is at noon when flights can be purchased for as low as $630. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are $781 on average. Flights to St. John's from Washington, D.C. Dulles Intl Airport in the morning are generally more expensive because this time of day is more convenient for travelers’ schedules.

When to book flights from Washington, D.C. Dulles Intl Airport to St. John's

Are you open to changing your travel dates? Check out the ideal times to fly from Washington, D.C. Dulles Intl Airport to St. John's according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Washington, D.C. Dulles Intl Airport to St. John's (IAD to YYT) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Washington, D.C. Dulles Intl Airport to St. John's

Best Price Found

$379

Fastest flight time

6h 04m

Direct flights

None

Airports in St. John's

1 airport
The best flight deal from Washington, D.C. Dulles Intl Airport to St. John's found on momondo in the last 72 hours is $379
The fastest flight from Washington, D.C. Dulles Intl Airport to St. John's takes 6h 04m
There are no direct flights from Washington, D.C. Dulles Intl Airport to St. John's. Popular non-direct route for this connection is Washington, D.C. Dulles Intl Airport - St John's Airport.
There is 1 airport near St. John's: St John's (YYT)
Search flight deals

  • How far is Washington, D.C. Dulles Intl to St John's by plane?

    A flight from Washington, D.C. Dulles Intl to St John's will travel around 1370.9 mi. A reasonable flight in good conditions will take 6h 04m.

  • When did momondo last update prices for flights from Washington, D.C. Dulles Intl Airport to St John's Airport?

    Prices for flights from Washington, D.C. Dulles Intl Airport to St John's Airport were last updated today.

  • How many operators does momondo search for flights from Washington, D.C. Dulles Intl Airport to St John's Airport?

  • How old do you have to be to fly from Washington, D.C. Dulles Intl Airport to St John's Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Washington, D.C. Dulles Intl Airport to St John's Airport.

  • What documentation or ID do you need to fly to St John's Airport?

    The travel and health documents required for your trip to St John's Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at St John's Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular airline from Washington, D.C. Dulles Intl Airport to St. John's?

Best airlines flying from Washington, D.C. Dulles Intl Airport to St. John's

Compare and see reviews for airlines that fly from Washington, D.C. Dulles Intl Airport to St. John's with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $258Free CancellationRating
7.4
8,900 reviews
Search United Airlines flights
Air CanadaPriceFrom $324Free CancellationRating
7.1
9,851 reviews
Search Air Canada flights

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to St. John's from Washington, D.C..

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

Yes. momondo allows you to filter the results for Washington, D.C. to St. John's flights to just show those with flexible booking policies.

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

momondo helps you find the best flight between Washington, D.C. and St. John's 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 St. John's right now. Can momondo alert me if prices change?

Price alerts on flights to St. John's from Washington, D.C. are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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