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Cheap flights from St. John's to Washington, D.C. Dulles Intl Airport from C$ 497

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 22/8. Fares are subject to change and may not be available on all flights or dates of travel.
YYT — IAD
30 Mar — 6 Apr1
1 adult

Cheap flight deals from St. John's to Dulles Intl

Discover tips and strategies to find the most affordable flight options for your journey from St. John's (YYT) to Dulles Intl (IAD). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 25 March 2025.

Round-trip from

C$ 1,041

One-way from

C$ 497

Popular in

May

Cheapest in

April

Average price

C$ 930
Porter Airlines
  • Porter Airlines
  • 18/4-14/7
  • 4 total stops
  • 41h 27m total
  • St. John's to Washington, D.C.
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Air Canada
  • Air Canada
  • 22/8
  • 2 total stops
  • 9h 22m total
  • St. John's to Washington, D.C.
Search Deals
High demand for flights, 3% potential price rise
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Cheapest flight prices on average. 3% potential price decrease (C$ 43 potential savings vs. average RT price).
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Average for round-trip flights in March 2025
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Find flight deals from St. John's to Dulles Intl

Cheapest flights from St. John's to Dulles Intl
Explore the most affordable flight options available from St. John's to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 25 March 2025.

Fri 18/41:05 p.m.YYT - IAD
2 stops10h 49mPorter Airlines
Mon 14/74:20 p.m.IAD - YYT
2 stops30h 38mPorter Airlines
Deal found 24/3C$ 1,041
Thu 17/46:00 a.m.YYT - IAD
2 stops8h 29mMultiple Airlines
Tue 15/79:30 a.m.IAD - YYT
3 stops34h 51mMultiple Airlines
Deal found 24/3C$ 1,077
Fri 18/45:20 p.m.YYT - IAD
1 stop16h 05mAir Canada
Mon 14/79:45 a.m.IAD - YYT
1 stop5h 57mAir Canada
Deal found 24/3C$ 1,192

Cheapflights Fare Finder

Customize your flight search to find flights from St. John's to Dulles Intl 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, Cheapflights users made 629,999 searches. Data last updated 25 March 2025.
Use the filters below to find and compare flights from St. John's to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

St. John's

Fly to

Dulles Intl

Route

Depart

Return

Price

St. John'sWashington, D.C.

YYT - IAD

YYTIAD

St John's

Fri 18/4

1:05 p.m.-10:24 p.m.

2 stops10h 49m

Washington, D.C. Dulles Intl

Mon 14/7

4:20 p.m.-12:28 a.m.

2 stops30h 38m

C$ 1,041

St. John'sWashington, D.C.

YYT - IAD

YYTIAD

St John's

Thu 17/4

6:00 a.m.-12:59 p.m.

2 stops8h 29m

Washington, D.C. Dulles Intl

Tue 15/7

9:30 a.m.-9:51 p.m.

3 stops34h 51m

C$ 1,077

St. John'sWashington, D.C.

YYT - IAD

YYTIAD

St John's

Fri 18/4

5:20 p.m.-7:55 a.m.

1 stop16h 05m

Washington, D.C. Dulles Intl

Mon 14/7

9:45 a.m.-5:12 p.m.

1 stop5h 57m

C$ 1,192

St. John'sWashington, D.C.

YYT - IAD

YYTIAD

St John's

Fri 22/8

8:45 a.m.-1:42 p.m.

1 stop6h 27m

C$ 497

Flights are sorted by cheapest round-trip flights first.

Deals found on 23/3

Best time to book a flight from St. John's to Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from St. John's with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from St. John's to Washington, D.C. Dulles Intl Airport

Rainfall in Dulles Intl by month

Plan your trip to Dulles Intl by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Washington, D.C. Dulles Intl Airport ranges from 66.0 - 102.0 mm per month. May is typically the wettest month, when rainfall can reach 102.0 mm. February is typically the driest time to visit Washington, D.C. Dulles Intl Airport when rainfall is around 66.0 mm.

Temperature in Dulles Intl by month

Plan your trip to Dulles Intl by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Washington, D.C. Dulles Intl Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 27.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 2.0 C).

Reviews of airlines servicing Dulles Intl

Get insights into the airlines that provide service to Dulles Intl. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Dulles Intl. Reviews last updated 25 March 2025.
Porter Airlines
7.9
Good
275 reviews
Check prices

Overall

7.9

Food

7.6

Comfort

8.0

Boarding

8.2

Crew

8.7

Entertainment

6.9

Reviews

1 / 17
10.0
Excellent

Anonymous,Dec 2024

YYZ - LAS

Everything about the rescheduled (cost me $180) flight great. ***Being denied boarding because I was few minutes under 1.5 hours was not. Stuck at the Kiosk for about 15 minutes before it directed me to the Porter counter was strange. Do not know why checking in online at home was not successful? I think something was up...what can you do?
Porter Airlines
7.9
Good
275 reviews
Porter Airlines
7.9
Good
275 reviews
Check prices

Overall

7.9

Food

7.6

Comfort

8.0

Boarding

8.2

Crew

8.7

Entertainment

6.9

Reviews

1 / 17
10.0
Excellent

Anonymous,Dec 2024

YYZ - LAS

Everything about the rescheduled (cost me $180) flight great. ***Being denied boarding because I was few minutes under 1.5 hours was not. Stuck at the Kiosk for about 15 minutes before it directed me to the Porter counter was strange. Do not know why checking in online at home was not successful? I think something was up...what can you do?
Air Canada
7.0
Good
8,952 reviews
Porter Airlines
7.9
Good
275 reviews
Check prices

Overall

7.9

Food

7.6

Comfort

8.0

Boarding

8.2

Crew

8.7

Entertainment

6.9

Reviews

1 / 17
10.0
Excellent

Anonymous,Dec 2024

YYZ - LAS

Everything about the rescheduled (cost me $180) flight great. ***Being denied boarding because I was few minutes under 1.5 hours was not. Stuck at the Kiosk for about 15 minutes before it directed me to the Porter counter was strange. Do not know why checking in online at home was not successful? I think something was up...what can you do?

Related info for your journey

Find useful and relevant information for your journey from St. John's to Dulles Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from St. John's to Washington, D.C. Dulles Intl?

    St John's (YYT) is the airport you will fly out of if you book a flight from St. John's to Washington, D.C. Dulles Intl. You should not have trouble finding flights to Washington, D.C. Dulles Intl from St John's; the airport handles an average of 0 outbound flights to Washington, D.C. Dulles Intl per day. You should also have plenty of airline options to choose from since 0 airlines have flights from the St. John's airport to Washington, D.C. Dulles Intl. It is only a 6.7 km journey to St John's (YYT) from St. John's’s city centre.

  • What are the cheapest airlines flying from St. John's to Washington, D.C. Dulles Intl Airport round-trip?

    Cheapflights users have booked flights from St. John's to Washington, D.C. Dulles Intl Airport round-trip from C$ 1,041. Another airline that can offer you cheap pricing is Air Canada.

  • Can I find deals for flights from St. John's to Dulles Intl that include hotel bookings?

    Yes. In addition to deals on St. John's to Dulles Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from St. John's to Dulles Intl?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from St. John's to Dulles Intl.

  • Can I find deals for business class flights from St. John's to Dulles Intl?

    Yes. Cheapflights offers flight deals from St. John's to Dulles Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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

    Currently, February is the cheapest month in which you can book a flight from St. John's to Washington, D.C. Dulles Intl Airport (average of C$ 256). Flying from St. John's to Washington, D.C. Dulles Intl Airport in October is currently the most expensive (average of C$ 352). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Travelling to a place near St. John's?

Book flights to St. John's if you plan to visit one of these locations
Herndon
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Alternative routes for St. John's to Dulles Intl

See prices for flight routes from nearby airports that may be better suited for you.
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