What are the cheapest airlines to fly from St. John's to Washington, D.C. Dulles Intl Airport one-way?

The cheapest airline one-way is Air Canada, with whom users have recently found tickets for as low as $237. However, be on the lookout for offers from Porter Airlines and United Airlines, as they are both options that can get you from St. John's to Washington, D.C. Dulles Intl Airport for a low price.

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

Currently, July is the cheapest month in which you can book a flight from St. John's to Washington, D.C. Dulles Intl Airport (average of $306). Flying from St. John's to Washington, D.C. Dulles Intl Airport in April is currently the most expensive (average of $337). 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.

In terms of precipitation, rainfall in Washington, D.C. Dulles Intl Airport ranges from 2.6 - 4.0 inches per month. May is typically the wettest month, when rainfall can reach 4.0 in. February is typically the driest time to visit Washington, D.C. Dulles Intl Airport when rainfall is around 2.6 in.

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 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

What is the cheapest time of day to fly from YYT to IAD?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from St. John's to Washington, D.C. Dulles Intl Airport as you normally would.

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

If you book a flight to Washington, D.C. Dulles Intl from St. John's, you will be flying from St John's, which is the city’s only airport. St John's (YYT) is located 4.2 mi from the center of St. John's. There are 0 flights from St John's to Washington, D.C. Dulles Intl per day from 0 different airlines.

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.

$237+ Flights from St. John's to Washington, D.C. Dulles Intl Airport

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

One-way flights from St. John's to Dulles Intl
Search for one-way flight options from St. John's to Dulles Intl. Find affordable one-way fares based on user searches. Data last updated July 29, 2025.

Wed 9/102:00 pmYYT - IAD

1 stop8h 35mAir Canada

Deal found 7/27

$237

Sun 9/286:00 amYYT - IAD

1 stop10h 36mPorter Airlines

Deal found 7/28

$253

Mon 8/253:40 pmYYT - IAD

3 stops26h 05mMultiple Airlines

Deal found 7/27

$284

Sat 8/162:10 pmYYT - IAD

2 stops18h 47mUnited Airlines

Deal found 7/26

$438

Sat 8/167:40 pmYYT - IAD

2 stops17h 34mWestJet

Deal found 7/28

$487

Cheapflights Fare Finder

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

Fly to

Route

Depart

Return

Price

St. John'sWashington, D.C.

YYT - IAD

YYTIAD

St John's

Wed 9/10

2:00 pm-9:05 pm

1 stop8h 35m

$237

St. John'sWashington, D.C.

YYT - IAD

YYTIAD

St John's

Sun 9/28

6:00 am-3:06 pm

1 stop10h 36m

$253

St. John'sWashington, D.C.

YYT - IAD

YYTIAD

St John's

Mon 8/25

3:40 pm-4:15 pm

3 stops26h 05m

$284

St. John'sWashington, D.C.

YYT - IAD

YYTIAD

St John's

Sat 8/16

2:10 pm-7:27 am

2 stops18h 47m

$438

St. John'sWashington, D.C.

YYT - IAD

YYTIAD

St John's

Sat 8/16

7:40 pm-11:44 am

2 stops17h 34m

$487

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/27

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.

Reviews of airlines servicing Dulles Intl

Get a feel of what it's like to fly with Porter Airlines, United Airlines, and WestJet from St. John's to Washington, D.C. Dulles Intl Airport by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Porter Airlines

8.0

Very good

317 reviews

Reviews

1 / 20

8.0

Excellent

Anonymous,Jul 2025

LIS - YYZ

Everything was on time and easy. Crew were nice on flights and helpful. International flight, so long and typically uncomfortable but not more than most. Food and drink service were below average but you get what you pay for. Overall, good experience

Porter Airlines

8.0

Very good

317 reviews

Porter Airlines

8.0

Very good

317 reviews

Reviews

1 / 20

8.0

Excellent

Anonymous,Jul 2025

LIS - YYZ

United Airlines

7.4

Good

8,899 reviews

Porter Airlines

8.0

Very good

317 reviews

Reviews

1 / 20

8.0

Excellent

Anonymous,Jul 2025

LIS - YYZ

WestJet

7.2

Good

2,973 reviews

Porter Airlines

8.0

Very good

317 reviews

Reviews

1 / 20

8.0

Excellent

Anonymous,Jul 2025

LIS - YYZ

Air Canada

7.1

Good

9,822 reviews

Porter Airlines

8.0

Very good

317 reviews

Reviews

1 / 20

8.0

Excellent

Anonymous,Jul 2025

LIS - YYZ

Related info for your journey

What airport do you fly from for flights from St. John's to Washington, D.C. Dulles Intl?
If you book a flight to Washington, D.C. Dulles Intl from St. John's, you will be flying from St John's, which is the city’s only airport. St John's (YYT) is located 4.2 mi from the center of St. John's. There are 0 flights from St John's to Washington, D.C. Dulles Intl per day from 0 different airlines.
What are the cheapest airlines to fly from St. John's to Washington, D.C. Dulles Intl Airport one-way?
The cheapest airline one-way is Air Canada, with whom users have recently found tickets for as low as $237. However, be on the lookout for offers from Porter Airlines and United Airlines, as they are both options that can get you from St. John's to Washington, D.C. Dulles Intl Airport for a low price.
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, July is the cheapest month in which you can book a flight from St. John's to Washington, D.C. Dulles Intl Airport (average of $306). Flying from St. John's to Washington, D.C. Dulles Intl Airport in April is currently the most expensive (average of $337). 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.

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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 9/10. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from St. John's to Dulles Intl with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

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

One-way flights from St. John's to Dulles Intl
Search for one-way flight options from St. John's to Dulles Intl. Find affordable one-way fares based on user searches. Data last updated July 29, 2025.

Search for one-way flight options from St. John's to Dulles Intl. Find affordable one-way fares based on user searches. Data last updated July 29, 2025.

Cheapflights Fare Finder

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.

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.

Reviews of airlines servicing Dulles Intl

Get a feel of what it's like to fly with Porter Airlines, United Airlines, and WestJet from St. John's to Washington, D.C. Dulles Intl Airport by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

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?

What are the cheapest airlines to fly from St. John's to Washington, D.C. Dulles Intl Airport one-way?

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

How can I 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?

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

Traveling to a place near Washington, D.C. Dulles Intl Airport?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for St. John's to Dulles Intl

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

Complete your trip

Complete your trip to Dulles Intl by adding a car rental and/or hotel reservation to your travel itinerary.

Other flights to Dulles Intl

Explore flights to Dulles Intl departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on July 29, 2025.

Search flights from St. John's to Dulles Intl by cabin class

Find flights from St. John's to Dulles Intl, based on your preferred cabin class, be it economy, premium economy, business, or first class.

St. John's and Dulles Intl flights

Browse other St. John's and Dulles Intl flight options. Last updated on July 29, 2025.

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$237+ Cheap flights from St. John's (YYT) to Dulles Intl (IAD)

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 9/10. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from St. John's to Dulles Intl with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

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

One-way flights from St. John's to Dulles IntlSearch for one-way flight options from St. John's to Dulles Intl. Find affordable one-way fares based on user searches. Data last updated July 29, 2025.

Search for one-way flight options from St. John's to Dulles Intl. Find affordable one-way fares based on user searches. Data last updated July 29, 2025.

Cheapflights Fare Finder

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.

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.

Reviews of airlines servicing Dulles Intl

Get a feel of what it's like to fly with Porter Airlines, United Airlines, and WestJet from St. John's to Washington, D.C. Dulles Intl Airport by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

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?

What are the cheapest airlines to fly from St. John's to Washington, D.C. Dulles Intl Airport one-way?

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

How can I 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?

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

Traveling to a place near Washington, D.C. Dulles Intl Airport?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for St. John's to Dulles Intl

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

100% Free

Book with Flexibility

Travel Smart

One-way flights from St. John's to Dulles Intl
Search for one-way flight options from St. John's to Dulles Intl. Find affordable one-way fares based on user searches. Data last updated July 29, 2025.