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Cheap flights from Washington, D.C. Dulles Intl Airport to St. John's from $176

This is the cheapest one-way 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 1/15. 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

Enter your travel dates to find the best prices.
Air Canada Logo
9:45 am - 8:15 pm
IAD
-
YYT
9h 00m2 stops
Air Canada Logo
5:05 am - 3:49 pm
YYT
-
IAD
12h 14m2 stops
$425Air Canada
Wed, Jan 28 - Sun, Feb 1
Air Canada Logo
9:45 am - 5:21 pm
IAD
-
YYT
6h 06m1 stop
Air Canada Logo
6:35 am - 8:29 pm
YYT
-
IAD
15h 24m1 stop
$446Air Canada
Wed, Jan 28 - Sun, Feb 1
Air Canada Logo
4:30 pm - 1:58 am
IAD
-
YYT
7h 58m1 stop
Air Canada Logo
6:35 am - 8:29 pm
YYT
-
IAD
15h 24m1 stop
$449Air Canada
Sun, Feb 1 - Sun, Feb 8
Air Canada Logo
9:45 am - 5:21 pm
IAD
-
YYT
6h 06m1 stop
Air Canada Logo
1:30 pm - 8:26 pm
YYT
-
IAD
8h 26m1 stop
$452Air Canada
Tue, Jan 13 - Tue, Jan 20
Porter Airlines Logo
11:40 am - 11:05 pm
IAD
-
YYT
9h 55m2 stops
Porter Airlines Logo
6:00 am - 5:14 pm
YYT
-
IAD
12h 44m2 stops
$516Porter Airlines
Sun, Mar 22 - Sun, Mar 29
Porter Airlines Logo
11:40 am - 11:05 pm
IAD
-
YYT
9h 55m2 stops
Porter Airlines Logo
6:00 am - 5:14 pm
YYT
-
IAD
12h 44m2 stops
$525Porter Airlines
Sun, Mar 22 - Sun, Mar 29
Porter Airlines Logo
11:40 am - 11:05 pm
IAD
-
YYT
9h 55m2 stops
Porter Airlines Logo
6:20 am - 5:14 pm
YYT
-
IAD
12h 24m2 stops
$526Porter Airlines
Mon, Mar 16 - Thu, Mar 19
Air Canada Logo
10:06 pm - 12:38 pm
IAD
-
YYT
13h 02m1 stop
Air Canada Logo
5:00 am - 11:48 am
YYT
-
IAD
8h 18m1 stop
$529Air Canada
Fri, Jan 16 - Fri, Jan 23
Air Canada Logo
9:45 am - 5:11 pm
IAD
-
YYT
5h 56m1 stop
Air Canada Logo
1:15 pm - 7:01 pm
YYT
-
IAD
7h 16m1 stop
$539Air Canada
Fri, Jun 12 - Mon, Jun 22
Air Canada Logo
9:45 am - 5:20 pm
IAD
-
YYT
6h 05m1 stop
Air Canada Logo
10:15 am - 8:26 pm
YYT
-
IAD
11h 41m2 stops
$542Air Canada
Thu, Jan 22 - Mon, Jan 26

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
Jan 28
IAD9:45 amWashington, D.C. Dulles Intl
9h 00m
2 stops
YYT8:15 pmSt John's
Feb 1
YYT5:05 amSt John's
12h 14m
2 stops
IAD3:49 pmWashington, D.C. Dulles Intl
$425
Find similar
Air Canada
Jan 28
IAD9:45 amWashington, D.C. Dulles Intl
6h 06m
1 stop
YYT5:21 pmSt John's
Feb 1
YYT6:35 amSt John's
15h 24m
1 stop
IAD8:29 pmWashington, D.C. Dulles Intl
$446
Find similar
Air Canada
Feb 1
IAD4:30 pmWashington, D.C. Dulles Intl
7h 58m
1 stop
YYT1:58 amSt John's
Feb 8
YYT6:35 amSt John's
15h 24m
1 stop
IAD8:29 pmWashington, D.C. Dulles Intl
$449
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
Mar 22
IAD11:40 amWashington, D.C. Dulles Intl
9h 55m
2 stops
YYT11:05 pmSt John's
Mar 29
YYT6:00 amSt John's
12h 44m
2 stops
IAD5:14 pmWashington, D.C. Dulles Intl
$516
Find similar
Porter Airlines
Mar 22
IAD11:40 amWashington, D.C. Dulles Intl
9h 55m
2 stops
YYT11:05 pmSt John's
Mar 29
YYT6:00 amSt John's
12h 44m
2 stops
IAD5:14 pmWashington, D.C. Dulles Intl
$525
Find similar
Porter Airlines
Mar 16
IAD11:40 amWashington, D.C. Dulles Intl
9h 55m
2 stops
YYT11:05 pmSt John's
Mar 19
YYT6:20 amSt John's
12h 24m
2 stops
IAD5:14 pmWashington, D.C. Dulles Intl
$526
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 December 18, 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

Wed 1/28

9:45 am-8:15 pm

2 stops9h 00m

St John's

Sun 2/1

5:05 am-3:49 pm

2 stops12h 14m

$425

Washington, D.C.St. John's

IAD - YYT

IADYYT

Washington, D.C. Dulles Intl

Wed 1/28

9:45 am-5:21 pm

1 stop6h 06m

St John's

Sun 2/1

6:35 am-8:29 pm

1 stop15h 24m

$446

Washington, D.C.St. John's

IAD - YYT

IADYYT

Washington, D.C. Dulles Intl

Sun 2/1

4:30 pm-1:58 am

1 stop7h 58m

St John's

Sun 2/8

6:35 am-8:29 pm

1 stop15h 24m

$449

Washington, D.C.St. John's

IAD - YYT

IADYYT

Washington, D.C. Dulles Intl

Tue 1/13

9:45 am-5:21 pm

1 stop6h 06m

St John's

Tue 1/20

1:30 pm-8:26 pm

1 stop8h 26m

$452

Washington, D.C.St. John's

IAD - YYT

IADYYT

Washington, D.C. Dulles Intl

Sun 3/22

11:40 am-11:05 pm

2 stops9h 55m

St John's

Sun 3/29

6:00 am-5:14 pm

2 stops12h 44m

$516

Washington, D.C.St. John's

IAD - YYT

IADYYT

Washington, D.C. Dulles Intl

Sun 3/22

11:40 am-11:05 pm

2 stops9h 55m

St John's

Sun 3/29

6:00 am-5:14 pm

2 stops12h 44m

$525

Washington, D.C.St. John's

IAD - YYT

IADYYT

Washington, D.C. Dulles Intl

Mon 3/16

11:40 am-11:05 pm

2 stops9h 55m

St John's

Thu 3/19

6:20 am-5:14 pm

2 stops12h 24m

$526

Washington, D.C.St. John's

IAD - YYT

IADYYT

Washington, D.C. Dulles Intl

Fri 1/16

10:06 pm-12:38 pm

1 stop13h 02m

St John's

Fri 1/23

5:00 am-11:48 am

1 stop8h 18m

$529

Washington, D.C.St. John's

IAD - YYT

IADYYT

Washington, D.C. Dulles Intl

Fri 6/12

9:45 am-5:11 pm

1 stop5h 56m

St John's

Mon 6/22

1:15 pm-7:01 pm

1 stop7h 16m

$539

Washington, D.C.St. John's

IAD - YYT

IADYYT

Washington, D.C. Dulles Intl

Thu 1/22

9:45 am-5:20 pm

1 stop6h 05m

St John's

Mon 1/26

10:15 am-8:26 pm

2 stops11h 41m

$542

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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.

Can stopping save me money on Washington, D.C. Dulles Intl Airport to St. John's flights?

You could potentially save up to 62% on your flight if you consider stops on a Washington, D.C. Dulles Intl Airport to St. John's flight.

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

Fastest flight time

5h 56m

Direct flights

None
The fastest flight from Washington, D.C. Dulles Intl Airport to St. John's takes 5h 56m
There are no direct flights from Washington, D.C. Dulles Intl Airport to St. John's. There are no popular flight routes from Washington, D.C. Dulles Intl Airport to St. John's.
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 5h 56m.

  • 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
9,092 reviews
Search United Airlines flights
Air CanadaPriceFrom $530Free CancellationRating
7.1
10,534 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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