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

Our cheapest airline available from Washington, D.C. to St. John's is Porter Airlines. Our recent data shows that you can find tickets from as low as $434 on this airline. Additional options worth looking into are Air Canada and United Airlines, starting at $530 and $535 round-trip. Porter Airlines is 45% cheaper than the average price of flights available within the next 90 days to this destination.

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

Currently, January is the cheapest month in which you can book a flight from Washington, D.C. to St. John's (average of $464). Flying from Washington, D.C. to St. John's in May is currently the most expensive (average of $680). 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.

What is the cheapest day to fly from Washington, D.C. to St. John's?

Travelers seeking maximum savings on their Washington, D.C. to St. John's flight should consider departing on Tuesday mornings when fares are most often at their lowest. Saturday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

What are the most popular routes from Washington, D.C. to St. John's?

While some choose either Washington, D.C. Dulles Intl - St John's or Baltimore/Washington - St John's, Washington, D.C. Reagan-National - St John's is the most popular route from Washington, D.C. to St. John's.

What is the cheapest day to fly round-trip from Washington, D.C. to St. John's?

Flights from Washington, D.C. to St. John's are found to be more expensive on Friday. This shouldn't discourage you from searching as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to St. John's.

What is the cheapest month to fly from Washington, D.C. to St. John's?

October is one of the best times of the year to fly to St. John's from Washington, D.C.. Prices for October average $795 per person but you can even find prices for as low as $507. The most expensive prices can be found in the month of January. Opting for a October flight can save you 58% on your journey compared to booking in January

Most accurate provider : When it comes to deals on Washington, D.C.-St. John's flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Washington, D.C.-St. John's flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Washington, D.C.-St. John's flight searches over the past month and is updated monthly.

Most trusted provider : When it comes to deals on Washington, D.C.-St. John's flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Washington, D.C.-St. John's flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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

Most people fly into St John's (YYT) if they book a flight to St. John's from Washington, D.C.. On average, St John's has 0 inbound flights from Washington, D.C. per day from 2 airlines. St John's is conveniently located just 4.2 mi from St. John's’s city center.

Can I find deals for flights from Washington, D.C. to St. John's that include hotel bookings?

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

How can I find direct flights from Washington, D.C. to St. John's?

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

Can I find deals for business class flights from Washington, D.C. to St. John's?

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

$225+ Flights from Washington, D.C. to St. John's

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Cheap flight deals from Washington, D.C. to St. John's

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Round-trip from	$434 (Trip.com)
Popular in	January
Cheapest in	October
Average price	$658

Provider with most accurate pricing for Washington, D.C. (WAS)-St John's flight deals.

Search Deals

Provider most trusted by Cheapflights users for Washington, D.C. (WAS)-St John's flights.

Search Deals

From Washington, D.C. (WAS) to St John's

Search Deals

Highest demand for flights based on searches. 17% potential increase in price ($172 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 5% potential price decrease ($43 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in February 2025

Search Deals

Find flight deals from Washington, D.C. to St. John's

Cheapest flights from Washington, D.C. to St. John's
Explore the most affordable flight options available from Washington, D.C. to St. John's. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 23, 2025.

Sun 3/237:00 amIAD - YYT

2 stops15h 10mPorter Airlines

Sun 3/306:00 amYYT - IAD

2 stops8h 09mPorter Airlines

Deal found 2/21

$434

Fri 5/1611:35 amIAD - YYT

2 stops10h 18mMultiple Airlines

Fri 5/306:00 amYYT - IAD

1 stop10h 36mMultiple Airlines

Deal found 2/21

$525

Wed 5/289:40 amDCA - YYT

1 stop6h 02mMultiple Airlines

Mon 6/25:45 amYYT - DCA

2 stops7h 46mMultiple Airlines

Deal found 2/21

$530

Mon 5/129:45 amIAD - YYT

1 stop5h 57mAir Canada

Mon 5/195:45 amYYT - IAD

1 stop6h 59mAir Canada

Deal found 2/22

$530

Wed 5/287:00 amDCA - YYT

2 stops8h 42mUnited Airlines

Mon 6/25:45 amYYT - DCA

1 stop6h 04mUnited Airlines

Deal found 2/21

$535

Mon 5/126:22 amIAD - YYT

2 stops9h 20mUnited Airlines

Mon 5/195:45 amYYT - IAD

1 stop6h 59mUnited Airlines

Deal found 2/22

$535

Thu 5/15:50 amBWI - YYT

3 stops16h 03mMultiple Airlines

Tue 5/61:15 pmYYT - BWI

2 stops32h 45mMultiple Airlines

Deal found 2/21

$541

Sun 6/86:00 amDCA - YYT

1 stop5h 32mAir Canada

Sun 6/155:45 amYYT - DCA

1 stop6h 04mAir Canada

Deal found 2/20

$552

Wed 6/116:45 pmIAD - YYT

1 stop34h 05mWestJet

Mon 6/167:10 amYYT - IAD

1 stop12h 14mWestJet

Deal found 2/20

$635

Wed 7/96:00 amDCA - YYT

2 stops15h 25mDelta

Thu 7/173:00 pmYYT - DCA

2 stops18h 25mDelta

Deal found 2/21

$718

Fri 6/610:00 amDCA - YYT

2 stops11h 25mWestJet

Tue 6/173:00 pmYYT - DCA

2 stops9h 33mWestJet

Deal found 2/22

$837

Sat 8/169:36 amBWI - YYT

2 stops11h 49mWestJet

Sat 8/233:00 pmYYT - BWI

2 stops31h 23mWestJet

Deal found 2/22

$861

Best flights from Washington, D.C. to St. John's
Discover carefully curated flight deals from Washington, D.C. to St. John's that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated February 23, 2025.

Sun 3/237:00 amIAD - YYT

2 stops15h 10mPorter Airlines

Sun 3/306:00 amYYT - IAD

2 stops8h 09mPorter Airlines

Deal found 2/21

$434

Fri 5/1611:35 amIAD - YYT

2 stops10h 18mMultiple Airlines

Fri 5/306:00 amYYT - IAD

1 stop10h 36mMultiple Airlines

Deal found 2/21

$525

Mon 5/123:18 pmIAD - YYT

1 stop7h 49mAir Canada

Sun 5/185:45 amYYT - IAD

1 stop6h 59mAir Canada

Deal found 2/21

$530

Wed 5/287:00 amDCA - YYT

2 stops8h 42mUnited Airlines

Mon 6/25:45 amYYT - DCA

1 stop6h 04mUnited Airlines

Deal found 2/21

$535

Wed 6/116:45 pmIAD - YYT

1 stop34h 05mWestJet

Mon 6/167:10 amYYT - IAD

1 stop12h 14mWestJet

Deal found 2/20

$635

Wed 7/96:00 amDCA - YYT

2 stops15h 25mDelta

Thu 7/173:00 pmYYT - DCA

2 stops18h 25mDelta

Deal found 2/21

$718

Wed 5/289:40 amDCA - YYT

1 stop6h 02mMultiple Airlines

Mon 6/25:45 amYYT - DCA

2 stops7h 46mMultiple Airlines

Deal found 2/21

$530

Mon 5/126:22 amIAD - YYT

2 stops9h 20mUnited Airlines

Mon 5/195:45 amYYT - IAD

1 stop6h 59mUnited Airlines

Deal found 2/22

$535

Sun 6/86:00 amDCA - YYT

1 stop5h 32mAir Canada

Sun 6/155:45 amYYT - DCA

1 stop6h 04mAir Canada

Deal found 2/20

$552

Thu 5/15:50 amBWI - YYT

3 stops16h 03mMultiple Airlines

Tue 5/61:15 pmYYT - BWI

2 stops32h 45mMultiple Airlines

Deal found 2/21

$541

Fri 6/610:00 amDCA - YYT

2 stops11h 25mWestJet

Tue 6/173:00 pmYYT - DCA

2 stops9h 33mWestJet

Deal found 2/22

$837

Thu 5/16:00 amBWI - YYT

2 stops15h 25mWestJet

Tue 5/63:00 pmYYT - BWI

2 stops22h 11mWestJet

Deal found 2/21

$897

Last-minute flights from Washington, D.C. to St. John's
Discover last-minute flight deals from Washington, D.C. to St. John's. Data last updated February 23, 2025 and is based on user searches.

Sun 2/2310:28 amBWI - YYT

2 stops35h 42mMultiple Airlines

Sun 3/21:05 pmYYT - BWI

3 stops36h 22mMultiple Airlines

Deal found 2/22

$766

Fri 2/282:10 pmIAD - YYT

2 stops8h 03mPorter Airlines

Sun 3/21:05 pmYYT - IAD

2 stops10h 49mPorter Airlines

Deal found 2/21

$586

Fri 2/286:59 amDCA - YYT

1 stop7h 53mUnited Airlines

Sun 3/25:30 amYYT - DCA

1 stop6h 29mUnited Airlines

Deal found 2/21

$705

Fri 2/286:59 amDCA - YYT

1 stop7h 53mMultiple Airlines

Sun 3/27:20 pmYYT - DCA

2 stops16h 39mMultiple Airlines

Deal found 2/21

$733

Fri 2/286:02 amIAD - YYT

2 stops8h 50mUnited Airlines

Sun 3/25:25 pmYYT - IAD

1 stop16h 10mUnited Airlines

Deal found 2/21

$738

Fri 2/282:35 pmIAD - YYT

1 stop9h 26mAir Canada

Sun 3/25:05 amYYT - IAD

1 stop10h 26mAir Canada

Deal found 2/21

$757

Fri 2/288:40 pmDCA - YYT

1 stop14h 56mAir Canada

Sun 3/25:30 amYYT - DCA

1 stop6h 29mAir Canada

Deal found 2/22

$888

Fri 2/286:00 amIAD - YYT

3 stops16h 13mMultiple Airlines

Sun 3/24:25 pmYYT - IAD

3 stops22h 04mMultiple Airlines

Deal found 2/21

$966

Wed 3/193:55 pmIAD - YYT

1 stop7h 32mAir Canada

Wed 3/261:05 pmYYT - IAD

1 stop9h 06mAir Canada

Deal found 2/20

$530

Wed 3/193:55 pmIAD - YYT

1 stop7h 32mUnited Airlines

Wed 3/261:05 pmYYT - IAD

2 stops12h 24mUnited Airlines

Deal found 2/20

$568

Sun 3/237:00 amIAD - YYT

2 stops15h 10mPorter Airlines

Sun 3/306:00 amYYT - IAD

2 stops8h 09mPorter Airlines

Deal found 2/21

$434

Sun 3/238:40 pmDCA - YYT

1 stop14h 56mAir Canada

Sun 3/305:45 amYYT - DCA

1 stop6h 04mAir Canada

Deal found 2/21

$560

Find flights from Washington, D.C. to St. John's within your budget

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.St. John's

IAD - YYT

IADYYT

Washington, D.C. Dulles Intl

Sun 3/23

7:00 am-11:40 pm

2 stops15h 10m

St John's

Sun 3/30

6:00 am-12:39 pm

2 stops8h 09m

$434

Washington, D.C.St. John's

IAD - YYT

IADYYT

Washington, D.C. Dulles Intl

Fri 5/16

11:35 am-11:23 pm

2 stops10h 18m

St John's

Fri 5/30

6:00 am-3:06 pm

1 stop10h 36m

$525

Washington, D.C.St. John's

IAD - YYT

IADYYT

Washington, D.C. Dulles Intl

Mon 5/12

3:18 pm-12:37 am

1 stop7h 49m

St John's

Sun 5/18

5:45 am-11:14 am

1 stop6h 59m

$530

Washington, D.C.St. John's

DCA - YYT

DCAYYT

Washington, D.C. Reagan-National

Wed 5/28

9:40 am-5:12 pm

1 stop6h 02m

St John's

Mon 6/2

5:45 am-12:01 pm

2 stops7h 46m

$530

Washington, D.C.St. John's

DCA - YYT

DCAYYT

Washington, D.C. Reagan-National

Wed 5/28

7:00 am-5:12 pm

2 stops8h 42m

St John's

Mon 6/2

5:45 am-10:19 am

1 stop6h 04m

$535

Washington, D.C.St. John's

IAD - YYT

IADYYT

Washington, D.C. Dulles Intl

Mon 5/12

6:22 am-5:12 pm

2 stops9h 20m

St John's

Mon 5/19

5:45 am-11:14 am

1 stop6h 59m

$535

BaltimoreSt. John's

BWI - YYT

BWIYYT

Baltimore/Washington

Thu 5/1

5:50 am-11:23 pm

3 stops16h 03m

St John's

Tue 5/6

1:15 pm-8:30 pm

2 stops32h 45m

$541

Washington, D.C.St. John's

DCA - YYT

DCAYYT

Washington, D.C. Reagan-National

Sun 6/8

6:00 am-1:02 pm

1 stop5h 32m

St John's

Sun 6/15

5:45 am-10:19 am

1 stop6h 04m

$552

Washington, D.C.St. John's

IAD - YYT

IADYYT

Washington, D.C. Dulles Intl

Wed 6/11

6:45 pm-6:20 am

1 stop34h 05m

St John's

Mon 6/16

7:10 am-5:54 pm

1 stop12h 14m

$635

Washington, D.C.St. John's

DCA - YYT

DCAYYT

Washington, D.C. Reagan-National

Wed 7/9

6:00 am-10:55 pm

2 stops15h 25m

St John's

Thu 7/17

3:00 pm-7:55 am

2 stops18h 25m

$718

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/22

Showing 1-10 of 15 results

Compare providers for flights from Washington, D.C. to St. John's

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Washington, D.C. to St. John's in February.

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy1 star	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

Most accurate provider: When it comes to deals on Washington, D.C.-St. John's flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Washington, D.C.-St. John's flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Washington, D.C.-St. John's flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on Washington, D.C.-St. John's flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Washington, D.C.-St. John's flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Washington, D.C. to St. John's

Have a flexible travel schedule? Discover the best time to fly to St. John's from Washington, D.C. 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.

Travel insights for flights from Washington, D.C. to St. John's

Get recent, data-driven insights about flights from Washington, D.C. to St. John's including ideal travel times, pricing trends, and more.

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

It’s typically best to fly out from Washington, D.C. to St. John's at noon. Doing so could potentially save you 20% on the flight price compared to flying in the morning, which is usually more expensive.

Rainfall in St. John's by month

In terms of precipitation, rainfall in St. John's ranges from 3.6 - 6.5 inches per month. December is typically the wettest month, when rainfall can reach 6.5 in. July is typically the driest time to visit St. John's when rainfall is around 3.6 in.

Temperature in St. John's by month

If weather is an important factor for your trip to St. John's, 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 60.8 F. Travelers looking to avoid the cold should look outside of February, when temperatures are typically at their lowest (around 23.0 F).

Reviews of airlines servicing St. John's

To help decide which airline to fly from Washington, D.C. to St. John's, see what other customers have to say about Delta, Porter Airlines and United Airlines. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very good

8,203 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Delta

8.0

Very good

8,203 reviews

Delta

8.0

Very good

8,203 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Porter Airlines

7.9

Good

277 reviews

Delta

8.0

Very good

8,203 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

United Airlines

7.4

Good

8,754 reviews

Delta

8.0

Very good

8,203 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

WestJet

7.2

Good

2,796 reviews

Delta

8.0

Very good

8,203 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Air Canada

7.0

Good

8,758 reviews

Delta

8.0

Very good

8,203 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

What airport do you fly into for flights to St. John's from Washington, D.C.?
Most people fly into St John's (YYT) if they book a flight to St. John's from Washington, D.C.. On average, St John's has 0 inbound flights from Washington, D.C. per day from 2 airlines. St John's is conveniently located just 4.2 mi from St. John's’s city center.
What are the cheapest airlines flying from Washington, D.C. to St. John's round-trip?
Our cheapest airline available from Washington, D.C. to St. John's is Porter Airlines. Our recent data shows that you can find tickets from as low as $434 on this airline. Additional options worth looking into are Air Canada and United Airlines, starting at $530 and $535 round-trip. Porter Airlines is 45% cheaper than the average price of flights available within the next 90 days to this destination.
What are the most popular routes from Washington, D.C. to St. John's?
While some choose either Washington, D.C. Dulles Intl - St John's or Baltimore/Washington - St John's, Washington, D.C. Reagan-National - St John's is the most popular route from Washington, D.C. to St. John's.
Can I find deals for flights from Washington, D.C. to St. John's that include hotel bookings?
Yes. In addition to deals on Washington, D.C. to St. John's flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Washington, D.C. to St. John's?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Washington, D.C. to St. John's.
Can I find deals for business class flights from Washington, D.C. to St. John's?
Yes. Cheapflights offers flight deals from Washington, D.C. to St. John's 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 Washington, D.C. to St. John's?
Currently, January is the cheapest month in which you can book a flight from Washington, D.C. to St. John's (average of $464). Flying from Washington, D.C. to St. John's in May is currently the most expensive (average of $680). 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

Browse thousands of different options on Cheapflights for your next trip

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Top 2 airlines flying from Washington, D.C. to St. John's

Airline	Cheapest	Average	Flexibility	On-time
United Airlines	Cheapest$342	Average$820	FlexibilityNo cancel fee	On-time69%
Air Canada	Cheapest$473	Average$763	FlexibilityNo cancel fee	On-time67%

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$225+ Cheap flights from Washington, D.C. (WAS) to St. John's (YYT)

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 4/9. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Washington, D.C. to St. John's with Cheapflights

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2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Washington, D.C. to St. John's

Most accurate provider

Most trusted provider

Round-trip from

Popular in

Cheapest in

Average price

Find flight deals from Washington, D.C. to St. John's

Cheapest flights from Washington, D.C. to St. John'sExplore the most affordable flight options available from Washington, D.C. to St. John's. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 23, 2025.

Explore the most affordable flight options available from Washington, D.C. to St. John's. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 23, 2025.

Find flights from Washington, D.C. to St. John's within your budget

Compare providers for flights from Washington, D.C. to St. John's

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Washington, D.C. to St. John's in February.

Best time to book a flight from Washington, D.C. to St. John's

Have a flexible travel schedule? Discover the best time to fly to St. John's from Washington, D.C. with our price prediction graph.

Travel insights for flights from Washington, D.C. to St. John's

Get recent, data-driven insights about flights from Washington, D.C. to St. John's including ideal travel times, pricing trends, and more.

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

Find hourly flight availability from Washington, D.C. to St. John's. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated February 23, 2025.

Rainfall in St. John's by month

Plan your trip to St. John's by taking into account the average rainfall totals by month.

Temperature in St. John's by month

Plan your trip to St. John's by taking into account the average temperature totals by month.

Reviews of airlines servicing St. John's

Related info for your journey

Find useful and relevant information for your journey from Washington, D.C. to St. John's. 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 into for flights to St. John's from Washington, D.C.?

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

What are the most popular routes from Washington, D.C. to St. John's?

Can I find deals for flights from Washington, D.C. to St. John's that include hotel bookings?

How can I find direct flights from Washington, D.C. to St. John's?

Can I find deals for business class flights from Washington, D.C. to St. John's?

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

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Cheapest flights from Washington, D.C. to St. John's
Explore the most affordable flight options available from Washington, D.C. to St. John's. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 23, 2025.