IAD - YYT

$379 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 9/4. 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

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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Flights 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, Sep 4 - Wed, Sep 10
 Logo
11:35 am - 12:38 amIAD-YYT
11h 33m2 stops
 Logo
2:55 pm - 9:05 pmYYT-IAD
7h 40m2 stops
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
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
Fri, Sep 26 - Fri, Oct 3
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
Sat, Sep 13 - Sat, Sep 20
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
Mon, Sep 15 - Tue, Sep 23
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
Tue, Sep 16 - Sat, Sep 20
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
Sun, Sep 7 - Sun, Sep 14
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
Tue, Aug 26 - Tue, Sep 2
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
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 ($414) and Porter Airlines ($478).

Good to know

Cheapest flight$379
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 $379 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.

  • 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 8896 reviews
7.1Entertainment
7.3Comfort
7.7Boarding
6.6Food
8.1Crew
Airline reviews

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

8.0 ExcellentHal, Jul 2025IAD - MSY
Read more United Airlines reviews

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

the delay for 3 hours was understandable due to weather conditions but the flight should’ve provided some on flight compensations or at least provide more food.

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

Boarding experience was smooth. Flight attendants were friendly and helpful. Entertainment system on the Houston-Edmonton flight did not function for passengers on the left side of the aisle. On the bird's eye flight from Quito to Houston, they should not serve a meal. No one needs to eat after midnight and it is disturbing for those passengers trying to sleep.

Flight was late as pilot crew had to land at different airport in their previous flight. Passengers boarded and had to wait for pilots inside plane. Series of incomplete and unnecessary announcements by an annoying voice, rather than complete, informative announcements.

Delay and keep changing gates. I have to run around from B to C then to E.

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.

I didn’t get on plane. Passport being processed by consulate with visa application. Tried to cancel through underpricer after purchasing cacelling for any reason. No dice, they are thieves.

When I booked it on Kayak it aaid that I wasn't allowed hamd luggage. I called United Airlines and it took them 6 minutes to figure out if I was allowed free hand luggage. Surely something that simple they should be able to tell me instantly.

Both flights are delayed so I rate the whole experience as mediocre.

I booked my flight months ago, and checked-in online about 12 hours before the flight. I received an email confirmation of check-in. I had no subsequent communication from Air Canada after my original booking. After arriving at the airport three hours before the flight, as instructed, I waited 90 minutes for an agent to appear to check my bag. I was informed that my flight had been canceled many weeks before, and that flight was no longer being run!! I showed a copy of my check-in confirmation, but no explanation could be found. I was placed on standby for the next flight and the connection. Luckily, those flights were not full and I arrived at my destination. I double checked my email, but I received no update about the flight from Air Canada until the day of the flight.

I had a good experience. I liked being informed about the status of my luggage

I was forcefully re-routed to another destination and was delayed a total of 8hours. I have still not received my bags, no one is taking responsibility. The agents at the airport lied to me that I will get to my destination same time as my previous flight where I was forcefully re-routed from.

Flight was delayed by 1.5hrs. Once inside, people had their small handbags on the storage. The crew (male guy) was not helpful in making some space in the storage. Instead, he asked few bags to be checked-in and it was not a great experience. No attempt to help but just followed the things with a straight face. People had their literally small bags and he wouldnt not move from one storage to another even if there was space and would not let us do i as well. Once flight was on, they ran out of Orange juice, really running out of orange juice when the temp were 32.degrees outside. didnt made the sense. Onasking for a extra snack, he made a face as if he was giving me out of his pocket. if the flight was delayed, there could have an attempt to provide something extra incase people did asked.

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.

We had a very long delay. First the inbound flight took a while, then maintenance, they “fixed it” to then do boarding and leave the gate, and waste a lot of time to have to go back to the gate and eventually deplane. Had to wait for a new aircraft, wait for a gate, and do the whole thing again. Instead of leaving at 9:50am we left until past 1. I could’ve not woken up at 5am, or spend some more time with my family if they gave more grace period of time between flights to give some time in case of any issues. But they have to make all and every dollar possible

Aircraft had technical issues. After 3 hours of trying to resolve, flight was cancelled. Was booked on a flight leaving 12 hours after intended departure. Now on 4 flights instead of 2 and a day late to my destination.

Abandoned me in hallway in a wheelchair… which I asked for because I sprained my back. After waiting in the hallway, I decided to walk the rest of the way since someone respecting me up.. My experience with the united was totally the opposite. Wheelchair access, propped swift and save me a lot of grief. Air Canada totally disorganized.

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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