How long is the flight from Ottawa to Washington, D.C. Reagan-National Airport?

Departing from Ottawa to Washington, D.C. Reagan-National Airport will take you 4h 44m. There are 727 km between Ottawa and Washington, D.C. Reagan-National Airport. Both multi-stop and direct flights can be found to your destination and back.

What are the cheapest airlines flying from Ottawa to Washington, D.C. Reagan-National Airport round-trip?

According to our current data, United Airlines (C$ 275), and Air Canada (C$ 370) offers the cheapest pricing from Ottawa to Washington, D.C. Reagan-National Airport. United Airlines is 49% cheaper than the average price of flights available within the next 90 days to this destination.

In terms of precipitation, rainfall in Washington, D.C. Reagan-National 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. Reagan-National Airport when rainfall is around 66.0 mm.

If weather is an important factor for your trip to Washington, D.C. Reagan-National 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).

What are the cheapest flights from Ottawa to Washington, D.C. Reagan-National Airport?

While on average a flight from Ottawa to Washington, D.C. Reagan-National Airport is generally C$ 788, our data shows the cheapest flight currently is C$ 275. When looking at the most popular route, (Ottawa - Washington, D.C. Reagan-National), you can expect to pay C$ 515 for that flight.

What are the most reliable airlines from Ottawa to Washington, D.C. Reagan-National Airport?

Before booking your flight to Washington, D.C. Reagan-National Airport from Ottawa, check out the most reliable airlines to get you to your destination on time: Air Canada (71%), Jazz (71%), United Airlines( 71%).

What airport do you fly from for flights from Ottawa to Washington, D.C. Reagan-National?

For a flight from Ottawa to Washington, D.C. Reagan-National, you will be flying from Ottawa. Ottawa (YOW) is just 10.6 km from the centre of the city. Ottawa is the only Ottawa airport and it handles 1 outbound flight to Washington, D.C. Reagan-National per day. 2 airlines have flights to Washington, D.C. Reagan-National from Ottawa on a regular basis.

Can I find deals for flights from Ottawa to Reagan-National that include hotel bookings?

Yes. In addition to deals on Ottawa to Reagan-National flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Ottawa to Reagan-National?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ottawa to Reagan-National.

Can I find deals for business class flights from Ottawa to Reagan-National?

Yes. Cheapflights offers flight deals from Ottawa to Reagan-National by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

C$ 267+ Cheap Flights from Ottawa to Washington, D.C. Reagan-National Airport

Cheap flight deals from Ottawa to Reagan-National

Enter your travel dates to find the best prices.

Cheapest

Best

Direct

Last-minute

One-way

Cheapest flights from Ottawa to Reagan-National
Explore the most affordable flight options available from Ottawa to Reagan-National. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 6 October 2026.

Tue 3/115:40 p.m. -

1 stop4h 19m

Tue 10/116:00 a.m. -

1 stop3h 47m

Deal found 4/10C$ 458

Tue 17/1110:50 a.m. -

1 stop4h 34m

Tue 24/116:00 a.m. -

1 stop5h 37m

Deal found 2/10C$ 461

Wed 2/125:45 a.m. -

1 stop4h 44m

Thu 3/126:59 a.m. -

1 stop4h 21m

Deal found 5/10C$ 465

Wed 28/1010:50 a.m. -

1 stop4h 34m

Sat 31/106:00 a.m. -

1 stop3h 47m

Deal found 3/10C$ 473

Thu 29/105:45 a.m. -

1 stop4h 44m

Sat 31/106:00 a.m. -

1 stop5h 37m

Deal found 3/10C$ 475

Mon 2/115:40 p.m. -

1 stop4h 19m

Mon 9/116:00 a.m. -

1 stop3h 47m

Deal found 5/10C$ 479

Mon 9/115:40 p.m. -

1 stop4h 19m

Wed 11/114:00 p.m. -

1 stop6h 32m

Deal found 1/10C$ 481

Wed 4/1110:50 a.m. -

1 stop4h 34m

Sat 7/116:00 a.m. -

1 stop5h 37m

Deal found 1/10C$ 493

Thu 5/115:40 p.m. -

1 stop4h 19m

Sun 8/1111:05 a.m. -

1 stop4h 52m

Deal found 1/10C$ 495

Find flight deals from Ottawa to Reagan-National

Round-trip from	C$ 458
One-way from	C$ 267
Popular in	July
Cheapest in	January
Average price	C$ 456
Good round-trip deal	C$ 440 or less
Good one-way deal	C$ 366 or less

Air Canada
3/11-10/11
2 total stops
8h 06m total
Ottawa to Washington, D.C.

Search Deals

Air Canada
2/12-31/12
1 total stop
4h 34m total
Ottawa to Washington, D.C.

Search Deals

Highest demand for flights based on searches. 13% potential increase in price (C$ 124 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease (C$ 19 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in October 2026

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Price to beat on a round-trip flight from Ottawa to Washington, D.C. Reagan-National.

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Price to beat on a one-way flight from Ottawa to Washington, D.C. Reagan-National.

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Cheapflights Fare Finder

Use the filters below to find and compare flights from Ottawa to Washington, D.C. Reagan-National Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OttawaWashington, D.C.

YOW Ottawa - DCA Washington, D.C. Reagan-National

YOWDCA

Ottawa

Thu 19/11

10:50 a.m.-3:24 p.m.

1 stop4h 34m

Washington, D.C. Reagan-National

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 274

OttawaWashington, D.C.

YOW Ottawa - DCA Washington, D.C. Reagan-National

YOWDCA

Ottawa

Wed 2/12

5:45 a.m.-10:29 a.m.

1 stop4h 44m

Washington, D.C. Reagan-National

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 284

OttawaWashington, D.C.

YOW Ottawa - DCA Washington, D.C. Reagan-National

YOWDCA

Ottawa

Fri 30/10

6:00 a.m.-4:28 p.m.

1 stop10h 28m

Washington, D.C. Reagan-National

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 317

OttawaWashington, D.C.

YOW Ottawa - DCA Washington, D.C. Reagan-National

YOWDCA

Ottawa

Fri 30/10

10:30 a.m.-12:19 p.m.

Nonstop1h 49m

Washington, D.C. Reagan-National

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 321

OttawaWashington, D.C.

YOW Ottawa - DCA Washington, D.C. Reagan-National

YOWDCA

Ottawa

Thu 22/10

11:15 a.m.-3:40 p.m.

1 stop4h 25m

Washington, D.C. Reagan-National

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 334

Quickest round-trip

OttawaWashington, D.C.

YOW Ottawa - DCA Washington, D.C. Reagan-National

YOWDCA

Ottawa

Wed 21/10

10:35 a.m.-12:09 p.m.

Nonstop1h 34m

Washington, D.C. Reagan-National

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 349

OttawaWashington, D.C.

YOW Ottawa - DCA Washington, D.C. Reagan-National

YOWDCA

Ottawa

Wed 2/12

7:00 a.m.-6:25 p.m.

2 stops11h 25m

Washington, D.C. Reagan-National

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 358

OttawaWashington, D.C.

YOW Ottawa - DCA Washington, D.C. Reagan-National

YOWDCA

Ottawa

Wed 2/12

5:45 a.m.-10:29 a.m.

1 stop4h 44m

Washington, D.C. Reagan-National

Thu 3/12

6:59 a.m.-11:20 a.m.

1 stop4h 21m

C$ 465

OttawaWashington, D.C.

YOW Ottawa - DCA Washington, D.C. Reagan-National

YOWDCA

Ottawa

Sun 22/11

10:30 a.m.-12:19 p.m.

Nonstop1h 49m

Washington, D.C. Reagan-National

Mon 23/11

6:00 a.m.-11:37 a.m.

1 stop5h 37m

C$ 491

OttawaWashington, D.C.

YOW Ottawa - DCA Washington, D.C. Reagan-National

YOWDCA

Ottawa

Sat 21/11

5:45 a.m.-10:29 a.m.

1 stop4h 44m

Washington, D.C. Reagan-National

Sun 22/11

6:00 a.m.-11:37 a.m.

1 stop5h 37m

C$ 558

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/10

Showing 1-10 of 17 resultsSorted by cheapest first

Best time to book a flight from Ottawa to Reagan-National

Have a flexible travel schedule? Discover the best time to fly to Reagan-National from Ottawa with our price prediction graph.

YOW-DCA

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 Ottawa to Washington, D.C. Reagan-National Airport

What is the cheapest month to book a flight from Ottawa to Washington, D.C. Reagan-National Airport?

Currently, January is the cheapest month in which you can book a flight from Ottawa to Washington, D.C. Reagan-National Airport (average of C$ 371). Flying from Ottawa to Washington, D.C. Reagan-National Airport in July is currently the most expensive (average of C$ 674). 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 time of day to fly from YOW to DCA?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Ottawa to Washington, D.C. Reagan-National Airport as you normally would.

Reviews of airlines servicing Reagan-National

Read reviews from past customers who have flown United Airlines and Air Canada from Ottawa to Washington, D.C. Reagan-National Airport. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

United Airlines

7.4

Good

10,287 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family

United Airlines

7.4

Good

10,287 reviews

United Airlines

7.4

Good

10,287 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family

Air Canada

7.1

Good

11,729 reviews

United Airlines

7.4

Good

10,287 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family

Related info for your journey

What airport do you fly from for flights from Ottawa to Washington, D.C. Reagan-National?
For a flight from Ottawa to Washington, D.C. Reagan-National, you will be flying from Ottawa. Ottawa (YOW) is just 10.6 km from the centre of the city. Ottawa is the only Ottawa airport and it handles 1 outbound flight to Washington, D.C. Reagan-National per day. 2 airlines have flights to Washington, D.C. Reagan-National from Ottawa on a regular basis.
How long is the flight from Ottawa to Washington, D.C. Reagan-National Airport?
Departing from Ottawa to Washington, D.C. Reagan-National Airport will take you 4h 44m. There are 727 km between Ottawa and Washington, D.C. Reagan-National Airport. Both multi-stop and direct flights can be found to your destination and back.
What are the cheapest airlines flying from Ottawa to Washington, D.C. Reagan-National Airport round-trip?
According to our current data, United Airlines (C$ 275), and Air Canada (C$ 370) offers the cheapest pricing from Ottawa to Washington, D.C. Reagan-National Airport. United Airlines is 49% cheaper than the average price of flights available within the next 90 days to this destination.
What are the most reliable airlines from Ottawa to Washington, D.C. Reagan-National Airport?
Before booking your flight to Washington, D.C. Reagan-National Airport from Ottawa, check out the most reliable airlines to get you to your destination on time: Air Canada (71%), Jazz (71%), United Airlines( 71%).
What are the cheapest flights from Ottawa to Washington, D.C. Reagan-National Airport?
While on average a flight from Ottawa to Washington, D.C. Reagan-National Airport is generally C$ 788, our data shows the cheapest flight currently is C$ 275. When looking at the most popular route, (Ottawa - Washington, D.C. Reagan-National), you can expect to pay C$ 515 for that flight.
Can I find deals for flights from Ottawa to Reagan-National that include hotel bookings?
Yes. In addition to deals on Ottawa to Reagan-National flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Ottawa to Reagan-National?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ottawa to Reagan-National.
Can I find deals for business class flights from Ottawa to Reagan-National?
Yes. Cheapflights offers flight deals from Ottawa to Reagan-National 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 Ottawa to Washington, D.C. Reagan-National Airport?
Currently, January is the cheapest month in which you can book a flight from Ottawa to Washington, D.C. Reagan-National Airport (average of C$ 371). Flying from Ottawa to Washington, D.C. Reagan-National Airport in July is currently the most expensive (average of C$ 674). 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

Silver Spring

Alexandria

Hanover

College Park

Oxon Hill

Gaithersburg

Reston

Herndon

Ellicott City

Arlington

Fredericksburg

Rockville

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Alternative routes

Complete your trip

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Popular flights

Reagan-National flight routes

Alternative routes for Ottawa to Reagan-National

Pearson Intl to Reagan-National flights

Pearson Intl to Dulles Intl flights

Toronto Island to Dulles Intl flights

Pearson Intl to Baltimore flights

Pierre Elliott Trudeau Intl to Reagan-National flights

Toronto Island to Reagan-National flights

Pierre Elliott Trudeau Intl to Dulles Intl flights

Toronto Island to Baltimore flights

Pierre Elliott Trudeau Intl to Baltimore flights

Ottawa to Dulles Intl flights

Ottawa to Baltimore flights

London to Baltimore flights

London to Reagan-National flights

Thunder Bay to Dulles Intl flights

London to Dulles Intl flights

Hamilton to Reagan-National flights

Top 2 airlines flying from Ottawa to Reagan-National

Airline	Cheapest	Average	Flexibility	On-time
United Airlines	CheapestC$ 275	AverageC$ 572	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights
Air Canada	CheapestC$ 370	AverageC$ 561	FlexibilityNo cancel fee	On-time67%	Search Air Canada flights

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How does Cheapflights help users find flights from Ottawa to Reagan-National?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Reagan-National from Ottawa today with Cheapflights!

Why should you use Cheapflights to find cheap flight tickets from Ottawa to Reagan-National?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Reagan-National from Ottawa.

Can Cheapflights find flights from Ottawa to Reagan-National with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from Ottawa to Reagan-National, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from Ottawa to Reagan-National become cheaper?

Yes! Start tracking prices for Ottawa to Reagan-National flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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Cheap flights from Ottawa to Washington, D.C. Reagan-National Airport from C$ 267

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/12. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Ottawa to Reagan-National

Cheapest flights from Ottawa to Reagan-NationalExplore the most affordable flight options available from Ottawa to Reagan-National. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 6 October 2026.

Explore the most affordable flight options available from Ottawa to Reagan-National. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 6 October 2026.

Best flights from Ottawa to Reagan-NationalDiscover carefully curated flight deals from Ottawa to Reagan-National that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 6 October 2026.

Discover carefully curated flight deals from Ottawa to Reagan-National that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 6 October 2026.

Direct flights from Ottawa to Reagan-NationalExplore direct flight options from Ottawa to Reagan-National based on user searches, and compare prices and availability for your desired travel dates. Data last updated 6 October 2026.

Explore direct flight options from Ottawa to Reagan-National based on user searches, and compare prices and availability for your desired travel dates. Data last updated 6 October 2026.

Last-minute flights from Ottawa to Reagan-NationalDiscover last-minute flight deals from Ottawa to Reagan-National. Data last updated 6 October 2026 and is based on user searches.

Discover last-minute flight deals from Ottawa to Reagan-National. Data last updated 6 October 2026 and is based on user searches.

One-way flights from Ottawa to Reagan-NationalSearch for one-way flight options from Ottawa to Reagan-National. Find affordable one-way fares based on user searches. Data last updated 6 October 2026.

Search for one-way flight options from Ottawa to Reagan-National. Find affordable one-way fares based on user searches. Data last updated 6 October 2026.

Find flight deals from Ottawa to Reagan-National

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One-way from

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Cheapest in

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Good one-way deal

Cheapflights Fare Finder

Use the filters below to find and compare flights from Ottawa to Washington, D.C. Reagan-National Airport that are best for you.

Best time to book a flight from Ottawa to Reagan-National

Have a flexible travel schedule? Discover the best time to fly to Reagan-National from Ottawa with our price prediction graph.

Cheapflights Insights

What is the cheapest month to book a flight from Ottawa to Washington, D.C. Reagan-National Airport?

What is the cheapest time of day to fly from YOW to DCA?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Ottawa to Washington, D.C. Reagan-National Airport as you normally would.

Reviews of airlines servicing Reagan-National

Related info for your journey

What airport do you fly from for flights from Ottawa to Washington, D.C. Reagan-National?

How long is the flight from Ottawa to Washington, D.C. Reagan-National Airport?

What are the cheapest airlines flying from Ottawa to Washington, D.C. Reagan-National Airport round-trip?

What are the most reliable airlines from Ottawa to Washington, D.C. Reagan-National Airport?

What are the cheapest flights from Ottawa to Washington, D.C. Reagan-National Airport?

Can I find deals for flights from Ottawa to Reagan-National that include hotel bookings?

How can I find direct flights from Ottawa to Reagan-National?

Can I find deals for business class flights from Ottawa to Reagan-National?

What is the cheapest month to book a flight from Ottawa to Washington, D.C. Reagan-National Airport?

Travelling to a place near Washington, D.C. Reagan-National Airport?

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Ottawa to Reagan-National

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

Complete your trip

Complete your trip to Reagan-National by adding a car rental and/or hotel reservation to your travel itinerary.

Direct flights to District of Columbia

Book a non-stop flight to one of these other cities located in District of Columbia.

Search flights from Ottawa to Reagan-National by cabin class

Find flights from Ottawa to Reagan-National, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Ottawa and Reagan-National flights

Browse other Ottawa and Reagan-National flight options. Last updated on 6 October 2026.

Other flights from Ottawa

Browse through other flights departing from Ottawa. Flights are based on user searches made on Cheapflights and were last updated on 6 October 2026.

Popular flight searches

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Other flights to Reagan-National

Explore flights to Reagan-National departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 6 October 2026.

Top 2 airlines flying from Ottawa to Reagan-National

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How does Cheapflights help users find flights from Ottawa to Reagan-National?

Why should you use Cheapflights to find cheap flight tickets from Ottawa to Reagan-National?

Can Cheapflights find flights from Ottawa to Reagan-National with no change fees?

Can Cheapflights notify me if prices for flights from Ottawa to Reagan-National become cheaper?

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Cheapest flights from Ottawa to Reagan-National
Explore the most affordable flight options available from Ottawa to Reagan-National. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 6 October 2026.

Best flights from Ottawa to Reagan-National
Discover carefully curated flight deals from Ottawa to Reagan-National that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 6 October 2026.

Direct flights from Ottawa to Reagan-National
Explore direct flight options from Ottawa to Reagan-National based on user searches, and compare prices and availability for your desired travel dates. Data last updated 6 October 2026.

Last-minute flights from Ottawa to Reagan-National
Discover last-minute flight deals from Ottawa to Reagan-National. Data last updated 6 October 2026 and is based on user searches.

One-way flights from Ottawa to Reagan-National
Search for one-way flight options from Ottawa to Reagan-National. Find affordable one-way fares based on user searches. Data last updated 6 October 2026.