IAD - YYT

$443 Find Cheap Flights from Washington Dulles Airport to St. John's

This is the cheapest round-trip 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 12/11. 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
$443
Air Canada
Thu 12/11Thu 12/18
IAD - YYT • 2 stops
Cheapest one-way
Multiple Airlines
Thu 10/30
IAD - YYT • multi-stop
Top airlines
Air Canada
Cheapest • from $443 (round-trip)
United Airlines
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
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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

Thu, Dec 11 - Thu, Dec 18
Air Canada Logo
9:45 am - 8:15 pmIAD-YYT
9h 00m2 stops
Air Canada Logo
5:05 am - 3:46 pmYYT-IAD
12h 11m2 stops
$443Air Canada
Find Deal
Thu, Dec 11 - Thu, Dec 18
Air Canada Logo
9:45 am - 5:21 pmIAD-YYT
6h 06m1 stop
Air Canada Logo
5:05 am - 3:46 pmYYT-IAD
12h 11m2 stops
$452Air Canada
Find Deal
Wed, Nov 26 - Wed, Dec 3
Porter Airlines Logo
11:40 am - 11:15 pmIAD-YYT
10h 05m2 stops
Porter Airlines Logo
6:20 am - 5:14 pmYYT-IAD
12h 24m2 stops
$471Porter Airlines
Find Deal
Thu, Dec 11 - Thu, Dec 18
Air Canada Logo
9:45 am - 5:21 pmIAD-YYT
6h 06m1 stop
Air Canada Logo
6:35 am - 3:46 pmYYT-IAD
10h 41m1 stop
$473Air Canada
Find Deal
Wed, Nov 26 - Wed, Dec 3
Multiple Airlines Logo
8:44 am - 1:01 amIAD-YYT
14h 47m2 stops
Multiple Airlines Logo
5:40 pm - 10:24 amYYT-IAD
18h 14m1 stop
$480Multiple Airlines
Find Deal
Sat, Dec 13 - Sat, Dec 20
Porter Airlines Logo
1:45 pm - 1:03 amIAD-YYT
9h 48m2 stops
Porter Airlines Logo
6:20 am - 5:14 pmYYT-IAD
12h 24m2 stops
$485Porter Airlines
Find Deal
Sun, Mar 22 - Sun, Mar 29
Porter Airlines Logo
11:40 am - 11:05 pmIAD-YYT
9h 55m2 stops
Porter Airlines Logo
6:00 am - 5:14 pmYYT-IAD
12h 44m2 stops
$512Porter Airlines
Find Deal
Tue, Mar 31 - Wed, Apr 1
United Airlines Logo
3:30 pm - 1:33 amIAD-YYT
8h 33m1 stop
United Airlines Logo
5:25 am - 11:00 pmYYT-IAD
19h 05m2 stops
$626United Airlines
Find Deal
Tue, Mar 31 - Wed, Apr 1
United Airlines Logo
6:20 am - 1:33 amIAD-YYT
17h 43m2 stops
United Airlines Logo
5:25 am - 11:00 pmYYT-IAD
19h 05m2 stops
$631United Airlines
Find Deal
Sat, Mar 28 - Thu, Apr 2
Multiple Airlines Logo
9:55 am - 5:21 pmIAD-YYT
5h 56m1 stop
Multiple Airlines Logo
8:55 pm - 11:16 amYYT-IAD
15h 51m2 stops
$666Multiple Airlines
Find Deal
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 Air Canada ($443) and Porter Airlines ($471).

Which airlines fly non-stop between Washington, D.C. Dulles Intl Airport and St. John's?

Airline and price data is aggregated from results in KAYAK’s search results from the last 2 weeks for round-trip flights from Washington, D.C. Dulles Intl Airport to St. John's.

There are 2 airlines that fly nonstop from Washington, D.C. Dulles Intl Airport to St. John's. They are Air Canada and United Airlines. The cheapest airline for this route is United Airlines, with the best round-trip deal found costing $258. On average, the best prices for this route can be found at Air Canada.

Good to know

Low seasonMarch
Cheapest flight$443
Best time to beat the crowds with an average 58% drop in price.
Most popular time to fly with an average 36% 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 $443 for a round-trip ticket.

  • 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 $657 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 8999 reviews
7.3Comfort
7.1Entertainment
8.1Crew
7.7Boarding
6.6Food
Airline reviews

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.

8.0 ExcellentMonsieur, Oct 2025IAD - EWR
Read more United Airlines reviews

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.

Better WiFi. I cannot understand that in 2025, United is so behind on a technology that is now a necessity and still painfully unreliable, slow and keeps disconnecting.

Great service on board. Boarding a bit slow due to process. Food was pretty average.

Very small cramped plane for an international flight. Everything else was good, but it was maybe the smallest comfort-wise I've ever been on for longer than 3-4 hours and the trip was 7.5

Flight was delayed 3 hours. No food and drink vouchers was provided. They offered a mini pretzel bag and water .

Staff was rude. Didn’t give water for 2 hours. Worst service

Was on time until within 1 hour of flight-how does that happen? Staff very friendly.

I liked the choice of lemon ginger tea. I think stewardesses can be more considerate of older people needs.

We were given vouchers we couldn’t use with a 5.5 hour delay

I fly UAL 7-8 times per year. This flight was not up to snuff because it boarded very late "due to unexpected delays in restocking the plane" and yet Flight Aware showed the plane had landed some 10 hours earlier--so I think they could have planned accordingly. The FA's were nice but harried. The video system had to be rebooted 3-4 times. The food service was rather abrupt; they forgot my row and when I asked for my meal, they brought it with some impatience. Overall, the flight was fine, but the little details made it feel somewhat mundane and hurried.

Allow me to book extra bag check in as free though I packed in 1 luggage but that was 7 LBS overweight so make another bag to free check in.

I would like to get my money back. I flight was 4 hours late on the way to detroit, And same on my way back to Brussels they cancelled my flight and give me an other ticket and i had to wait 5 hours.

All attendents were very efficient, pleasant and happy. Everything went smoothly. The seats could have been wider. There could have been more free food instead of just one small bar.

My seat was one of those that couldn't recline, but the problem was that it was abnormally upright, so the headrest actually made the seat concave, which was uncomfortable and hard on my lower back. I had to ball my jacket up and use it as lumbar support. goodness I had it with me.

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

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