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Cheap flights from Washington, D.C. Dulles Intl Airport to St. John's from $249

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 7/28. 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
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

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.
Porter Airlines Logo
3:55 pm - 12:55 am
IAD
-
YYT
7h 30m
2 stops
Porter Airlines Logo
7:00 pm - 10:25 am
YYT
-
IAD
16h 55m
1 stop
$508Porter Airlines
Sun, Jul 12 - Wed, Jul 22
Multiple Airlines Logo
11:05 am - 10:55 pm
IAD
-
YYT
10h 20m
2 stops
Multiple Airlines Logo
1:20 pm - 10:25 am
YYT
-
IAD
22h 35m
1 stop
$526Multiple Airlines
Mon, Jul 20 - Wed, Jul 29
Multiple Airlines Logo
11:05 am - 12:08 am
IAD
-
YYT
11h 33m
1 stop
Multiple Airlines Logo
1:20 pm - 10:25 am
YYT
-
IAD
22h 35m
1 stop
$542Multiple Airlines
Mon, Jul 20 - Wed, Jul 29
Porter Airlines Logo
11:05 am - 12:55 am
IAD
-
YYT
12h 20m
2 stops
Porter Airlines Logo
6:00 am - 3:11 pm
YYT
-
IAD
10h 41m
2 stops
$549Porter Airlines
Wed, Jul 8 - Sat, Jul 11
Multiple Airlines Logo
3:55 pm - 12:35 pm
IAD
-
YYT
19h 10m
1 stop
Multiple Airlines Logo
6:00 am - 3:11 pm
YYT
-
IAD
10h 41m
2 stops
$556Multiple Airlines
Sun, Jul 5 - Sat, Jul 11
Multiple Airlines Logo
3:50 pm - 10:55 pm
IAD
-
YYT
29h 35m
1 stop
Multiple Airlines Logo
7:00 pm - 10:45 am
YYT
-
IAD
17h 15m
1 stop
$557Multiple Airlines
Wed, Aug 19 - Tue, Aug 25
Multiple Airlines Logo
11:25 am - 10:55 pm
IAD
-
YYT
10h 00m
1 stop
Multiple Airlines Logo
6:00 am - 10:45 am
YYT
-
IAD
30h 15m
2 stops
$566Multiple Airlines
Wed, Aug 19 - Tue, Aug 25
Porter Airlines Logo
3:55 pm - 12:55 am
IAD
-
YYT
7h 30m
2 stops
Porter Airlines Logo
6:05 am - 3:11 pm
YYT
-
IAD
10h 36m
2 stops
$568Porter Airlines
Wed, Jul 8 - Sat, Jul 11
Multiple Airlines Logo
3:55 pm - 12:55 am
IAD
-
YYT
7h 30m
2 stops
Multiple Airlines Logo
5:35 am - 4:38 pm
YYT
-
IAD
12h 33m
2 stops
$579Multiple Airlines
Mon, Jul 20 - Wed, Jul 29
Porter Airlines Logo
11:05 am - 10:55 pm
IAD
-
YYT
10h 20m
2 stops
Porter Airlines Logo
6:05 am - 3:11 pm
YYT
-
IAD
10h 36m
2 stops
$585Porter Airlines
Mon, Jul 6 - Mon, Jul 13

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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
Jul 12
IAD3:55 pmWashington, D.C. Dulles Intl
7h 30m
2 stops
YYT12:55 amSt John's
Jul 22
YYT7:00 pmSt John's
16h 55m
1 stop
IAD10:25 amWashington, D.C. Dulles Intl
$508
Porter Airlines
Jul 8
IAD11:05 amWashington, D.C. Dulles Intl
12h 20m
2 stops
YYT12:55 amSt John's
Jul 11
YYT6:00 amSt John's
10h 41m
2 stops
IAD3:11 pmWashington, D.C. Dulles Intl
$549
Porter Airlines
Jul 8
IAD3:55 pmWashington, D.C. Dulles Intl
7h 30m
2 stops
YYT12:55 amSt John's
Jul 11
YYT6:05 amSt John's
10h 36m
2 stops
IAD3:11 pmWashington, D.C. Dulles Intl
$568

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
Aug 1
IAD4:20 pmWashington, D.C. Dulles Intl
8h 01m
1 stop
YYT1:51 amSt John's
Aug 5
YYT5:00 amSt John's
11h 54m
1 stop
IAD3:24 pmWashington, D.C. Dulles Intl
$633
Air Canada
Oct 20
IAD4:00 pmWashington, D.C. Dulles Intl
8h 16m
1 stop
YYT1:46 amSt John's
Oct 21
YYT5:35 amSt John's
11h 20m
2 stops
IAD3:25 pmWashington, D.C. Dulles Intl
$635
Air Canada
Oct 15
IAD9:45 amWashington, D.C. Dulles Intl
8h 28m
2 stops
YYT7:43 pmSt John's
Oct 19
YYT1:15 pmSt John's
7h 15m
1 stop
IAD7:00 pmWashington, D.C. Dulles Intl
$657

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 June 18, 2026.
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

Cheapest round-trip

Washington, D.C.St. John's

IAD - YYT

IADYYT

Washington, D.C. Dulles Intl

Sun 7/12

3:55 pm-12:55 am

2 stops7h 30m

St John's

Wed 7/22

7:00 pm-10:25 am

1 stop16h 55m

$508

Washington, D.C.St. John's

IAD - YYT

IADYYT

Washington, D.C. Dulles Intl

Mon 7/20

11:05 am-10:55 pm

2 stops10h 20m

St John's

Wed 7/29

1:20 pm-10:25 am

1 stop22h 35m

$526

Washington, D.C.St. John's

IAD - YYT

IADYYT

Washington, D.C. Dulles Intl

Mon 7/20

11:05 am-12:08 am

1 stop11h 33m

St John's

Wed 7/29

1:20 pm-10:25 am

1 stop22h 35m

$542

Washington, D.C.St. John's

IAD - YYT

IADYYT

Washington, D.C. Dulles Intl

Wed 7/8

11:05 am-12:55 am

2 stops12h 20m

St John's

Sat 7/11

6:00 am-3:11 pm

2 stops10h 41m

$549

Washington, D.C.St. John's

IAD - YYT

IADYYT

Washington, D.C. Dulles Intl

Sun 7/5

3:55 pm-12:35 pm

1 stop19h 10m

St John's

Sat 7/11

6:00 am-3:11 pm

2 stops10h 41m

$556

Washington, D.C.St. John's

IAD - YYT

IADYYT

Washington, D.C. Dulles Intl

Wed 8/19

3:50 pm-10:55 pm

1 stop29h 35m

St John's

Tue 8/25

7:00 pm-10:45 am

1 stop17h 15m

$557

Washington, D.C.St. John's

IAD - YYT

IADYYT

Washington, D.C. Dulles Intl

Wed 8/19

11:25 am-10:55 pm

1 stop10h 00m

St John's

Tue 8/25

6:00 am-10:45 am

2 stops30h 15m

$566
Quickest round-trip

Washington, D.C.St. John's

IAD - YYT

IADYYT

Washington, D.C. Dulles Intl

Wed 7/8

3:55 pm-12:55 am

2 stops7h 30m

St John's

Sat 7/11

6:05 am-3:11 pm

2 stops10h 36m

$568

Washington, D.C.St. John's

IAD - YYT

IADYYT

Washington, D.C. Dulles Intl

Mon 7/20

3:55 pm-12:55 am

2 stops7h 30m

St John's

Wed 7/29

5:35 am-4:38 pm

2 stops12h 33m

$579

Washington, D.C.St. John's

IAD - YYT

IADYYT

Washington, D.C. Dulles Intl

Mon 7/6

11:05 am-10:55 pm

2 stops10h 20m

St John's

Mon 7/13

6:05 am-3:11 pm

2 stops10h 36m

$585

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 month to fly to St. John's?

If you aren’t able to travel during the month of October, then book flights to St. John's from Washington, D.C. Dulles Intl Airport during February instead. Flights to St. John's in February, while not as cheap as those in October, still average around $0.

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

You could potentially save up to 40% 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 55m

Direct flights

None
The fastest flight from Washington, D.C. Dulles Intl Airport to St. John's takes 5h 55m
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

Frequently asked questions about flying from Washington, D.C. Dulles Intl Airport to St. John's

  • 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 55m.

  • 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
Air CanadaPriceFrom $541Free CancellationRating
7.1
11,210 reviews
Search Air Canada flights
United AirlinesPriceFrom $598Free CancellationRating
7.4
9,859 reviews
Search United Airlines 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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