IAD - YYT

$241 Find Cheap Flights from Washington Dulles Airport to St. John's

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Dulles Intl to St. John's departing on 6/5. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to St. John's

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Washington, D.C. to St. John's, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Washington, D.C. to St. John's, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$479
Typical prices: $258-$549
Air Canada
Sun 3/22Sun 3/29
IAD - YYT • 1 stop
Cheapest one-way
$241
Porter Airlines
Fri 6/5
IAD - YYT • 2 stops
Top airlines
Porter Airlines
Cheapest • from $473 (round-trip)
United Airlines
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
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We hope you love your trip to St. John's!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Dulles Intl to St. John's (IAD-YYT)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Dulles Intl to St. John's that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Dulles Intl to St. John's

Sun, Mar 22 - Sun, Mar 29
Air Canada Logo
9:00 am - 5:14 pm
IAD
-
YYT
6h 44m
1 stop
Air Canada Logo
1:25 pm - 8:24 pm
YYT
-
IAD
8h 29m
2 stops
$479Air Canada
Thu, Mar 5 - Tue, Mar 10
Air Canada Logo
9:45 am - 5:21 pm
IAD
-
YYT
6h 06m
1 stop
Air Canada Logo
6:35 am - 8:26 pm
YYT
-
IAD
15h 21m
1 stop
$499Air Canada
Thu, Mar 5 - Tue, Mar 10
Porter Airlines Logo
11:40 am - 11:05 pm
IAD
-
YYT
9h 55m
2 stops
Porter Airlines Logo
6:20 am - 10:24 am
YYT
-
IAD
29h 34m
2 stops
$501Porter Airlines
Fri, Mar 6 - Sat, Mar 14
Air Canada Logo
4:30 pm - 1:58 am
IAD
-
YYT
7h 58m
1 stop
Air Canada Logo
6:35 am - 8:26 pm
YYT
-
IAD
15h 21m
1 stop
$504Air Canada
Sun, Mar 22 - Sun, Mar 29
Air Canada Logo
9:00 am - 11:28 pm
IAD
-
YYT
12h 58m
1 stop
Air Canada Logo
5:25 am - 3:34 pm
YYT
-
IAD
11h 39m
2 stops
$508Air Canada
Wed, Jul 22 - Wed, Aug 5
Porter Airlines Logo
11:30 am - 12:51 am
IAD
-
YYT
11h 51m
2 stops
Porter Airlines Logo
6:05 am - 3:21 pm
YYT
-
IAD
10h 46m
2 stops
$528Porter Airlines
Sun, Mar 22 - Sun, Mar 29
Air Canada Logo
9:00 am - 11:28 pm
IAD
-
YYT
12h 58m
1 stop
Air Canada Logo
5:00 am - 3:34 pm
YYT
-
IAD
12h 04m
1 stop
$529Air Canada
Wed, Jul 22 - Wed, Aug 5
Porter Airlines Logo
11:30 am - 12:51 am
IAD
-
YYT
11h 51m
2 stops
Porter Airlines Logo
6:05 am - 3:21 pm
YYT
-
IAD
10h 46m
2 stops
$538Porter Airlines
Wed, Mar 11 - Wed, Mar 18
Porter Airlines Logo
11:40 am - 1:00 am
IAD
-
YYT
11h 50m
2 stops
Porter Airlines Logo
6:20 am - 10:24 am
YYT
-
IAD
29h 34m
2 stops
$551Porter Airlines
Sat, Jul 11 - Fri, Jul 17
Porter Airlines Logo
11:30 am - 12:51 am
IAD
-
YYT
11h 51m
2 stops
Porter Airlines Logo
6:05 am - 3:21 pm
YYT
-
IAD
10h 46m
2 stops
$562Porter Airlines
Booking Insights

KAYAK's insights & trends for Dulles Intl to St. John's flights

Get data-powered insights and trends into flights from Dulles Intl to St. John's to help you find the cheapest flights, the best time to fly and much more.

Which airlines provide the cheapest flights from Washington Dulles Airport to St. John's?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 72 hours.

In the past 3 days, the cheapest round-trip tickets from Washington Dulles Airport to St. John's were found on Porter Airlines ($473) and Air Canada ($479).

Good to know

Low seasonMarch
Cheapest flight$241
Best time to beat the crowds with an average 58% drop in price.
Most popular time to fly with an average 29% increase in price.
Flight from Washington Dulles Airport to St. John's

When to book flights from Dulles Intl to St. John's

Are your dates flexible? Find out the best times to travel from Dulles Intl to St. John's based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Washington Dulles Airport to St. John's flights

  • What is the cheapest flight from Washington, D.C. Dulles Intl Airport to St. John's?

    In the last 3 days, the lowest price for a flight from Washington, D.C. Dulles Intl Airport to St. John's was $241 for a one-way ticket and $473 for a round-trip.

  • Do I need a passport to fly between Washington Dulles Airport and St. John's?

    Yes, you’ll need a passport to travel to St. John's from Washington Dulles Airport.

  • Which aircraft models fly most regularly from Washington Dulles Airport to St. John's?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Washington Dulles Airport to St. John's?

    Star Alliance is the only airline alliance operating flights between Washington Dulles Airport and St. John's.

  • Which is the best airline for flights from Washington, D.C. to St. John's, United Airlines or Air Canada?

    The two airlines most popular with KAYAK users for flights from Washington, D.C. to St. John's are United Airlines and Air Canada. With an average price for the route of $607 and an overall rating of 7.4, United Airlines is the most popular choice. Air Canada is also a great choice for the route, with an average price of $645 and an overall rating of 7.1.

  • How does KAYAK find such low prices on flights from Washington Dulles Airport to St. John's?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Washington Dulles Airport to St. John's.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Washington Dulles Airport to St. John's?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to St. John's from Washington Dulles Airport is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Washington Dulles Airport to St. John's?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to St. John's with an airline and back to Washington Dulles Airport with another airline. Booking your flights between Washington Dulles Airport and YYT can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Washington Dulles Airport to St. John's?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to St. John's from Washington Dulles Airport up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airlines flying from Dulles Intl to St. John's

 
See real verified KAYAK customer reviews for airlines flying from Washington, D.C. to St. John's. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Dulles Intl to St. John's? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 9205 reviews
7.1Entertainment
7.7Boarding
8.1Crew
7.3Comfort
6.6Food
Airline reviews

Very good. Because of the delays with my previous flight, I missed my connection, but I was able to book another flight through the United app easily.

10.0 ExcellentAnonymous, Jan 2026
IAD - ATL
Read more United Airlines reviews

Very good. Because of the delays with my previous flight, I missed my connection, but I was able to book another flight through the United app easily.

Was happy we finally got upgraded in 1st class. The seat getting old. The cushiness need some improvement.

Ineffective communication with United resulted in lost baggage. Their Baggage Tracing counter at MUC was shut down from 11:00-14:15 on my arrival. Undertrained, underinformed staff had me Running all over MUC to find someone to help me to no avail. Staff was rude, unhelpful, and unable to effectively use the systems they did have operational. They refused to contact United in any way or provide any accommodation or other resources while I waited for my luggage. This has destroyed my downstream itinerary. If they had even the slightest visibility I may have been able to reschedule/plan, but again, their staff provided nothing, and did nothing more than their website, which doesn’t even work on a standard phone browser. Miserable failure at all levels that weren’t associated with the operation of the aircraft.

Sat next to a one year old. She crawled all over the place and made me laugh.

The Crew and the food was the worst I ever had in Business Class. First they told us there were no space for carry on. It was plenty of space over our 2 row seats, we had to ask to let us travel with it which was accepted. They were aware that we had to run for the connection due to the previous flight delay. Have us one hour waiting for more customers and not even offer a glass of water. Then started the service and they started to serve other passengers drinks in business and did not offer any drinks until they serve our pre ordered meal and I ask for something to drink. I had to wait until they finished to serve all passengers until Inget something. The crew was the worts I ever had for Business Class in my life.

Not great experience - we were super late boarding due to issues with aircraft. Then when we finally all got onboard and seated and they started taxiing out to the runway they just stopped then turned around and went back to the airport. Apparently the crew “ran out of time” to legally fly us. They mentioned that they were about 2 minutes away from taking off. I understand the rules and safety but kinda wonder why they would have bothered boarding us in the first place? Had to go all the way back and de plane and then wait in a HUGE line to get a hotel (this is somewhere around 2:30am) finally got to hotel by Uber (no shuttle after 20min so gave up) and they ended up putting us all back on the same aircraft at 10am next morning so got about 2.5 hours sleep. They did give us. $250 credit, but it was a São Paulo Brazil flight out of Dulles. The flight and everything was fine.

Starlink wifi on the Embraer E175 is an excellent experience. I was able to connect and work from IAD all the way to approach into BTV.

7 hours delayed due to operational issues on United’s end. Basically laziness.

Short flight but an "eager to help" crew made the journey more enjoyable!

During booking, I kept trying submitting my payment from the Mexican website and it didn't work. After I had the idea to change it to the Canadian website, it worked but I had to be charged the equivalent of 50 CAD more. I received the clear instruction that I would only be able to check-in at the airport and that it was impossible to select a seat 24 hours before departure, that I had to pay 144 CAD to do so, although not only was I able to check-in 24 hours before departure, but I could have selected my seats for free then. All in all, I almost threw $200 out the window due to misleading information. Besides, the app kept crashing, the information to get to the gate on the app was inaccurate, my gate was switched and I was only informed once in the air (luckily I had noticed the departure pannel), I was not addressed in my language beforehand and even if I tried I was immediately answered in English (which meant the crew understood but didn't want to answer accordingly), there was only one snack & beverage service on my medium haul flight and no beverage service on my short haul flight. To be fair, the planes were comfortable, the crew apart from the language issue was helpful, dynamic and engaging, the plane was clean and the directions were clear and direct. United has a lot of potential to be one of my favourite airlines, but the devil is in the details and a lot of them missed the target.

The plane was delayed substantially due to a mechanical problem, that being said, the airline was very fair with providing a meal coupon for us. I would rather arrive late on a mechanically sound plane than the alternative. The food served in the plane was just awful, however and I recommend a new catering company.

I waiting for 2 hrs to retrieve my luggage. Didn't get home till 3am.

The flight left late and I didn’t get a glass of bubbly upon boarding (which I’m used to when booking business class on other flights), but otherwise it was a pleasant flight with lovely, helpful crew members and I enjoyed my meal.

Super experience. Earlier than schedule departure and arrival. Baggage handling was very good

Plane left an hour late, I missed my connection and my bow case was never even loaded on the plane in VA. I deal with this type of nonsense everytime I fly air canada.

Check in agent was very helpful and polite. He helped me board the earlier flight back home instead of waiting 2 hours at the airport for the next flight

The crew were fabulous. The flight was bumpy and I always like the captain to tell me what that is about or my imagination gets carries away.

They went on strike before time and screwed us big time. Which is not fair. We respect their planned strike but why they went on strike ahead of time ??? Poor garbage management

Our flight was canceled at the last minute. Someone on the flight said the exact same thing happened to her the day before. I will say they helped us book a flight on another airline so that we could still make our vacation with little delay.

Very nice comfortable spacy Airbus 321. I liked the offer of food on the Bistro menu. The idea is very good to pay and cost was low.

Everything you need to know for your flight from Dulles Intl to St. John's

Information on your arrival and departure airports