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Cheap flights from Ottawa to Washington, D.C. Reagan-National Airport from C$ 242

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 17/10. Fares are subject to change and may not be available on all flights or dates of travel.
YOW — DCA
5 Sep — 12 Sep1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Ottawa to Reagan-National

Enter your travel dates to find the best prices.

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 August 2026.

Thu 27/810:25 a.m. -
Nonstop1h 35m
Sun 30/86:00 a.m. -
1 stop3h 39m
Deal found 2/8C$ 441
Tue 15/910:40 a.m. -
Nonstop1h 34m
Tue 22/96:00 a.m. -
1 stop5h 30m
Deal found 1/8C$ 442
Wed 16/96:00 a.m. -
1 stop4h 20m
Wed 23/96:00 a.m. -
1 stop4h 18m
Deal found 2/8C$ 445
Sat 22/810:25 a.m. -
Nonstop1h 35m
Mon 24/812:40 p.m. -
Nonstop1h 31m
Deal found 1/8C$ 447
Wed 2/911:15 a.m. -
1 stop4h 23m
Mon 7/96:00 a.m. -
1 stop4h 35m
Deal found 3/8C$ 470
Wed 14/1010:25 a.m. -
Nonstop1h 35m
Mon 19/1012:40 p.m. -
Nonstop1h 30m
Deal found 1/8C$ 476
Mon 31/810:25 a.m. -
Nonstop1h 35m
Mon 7/912:55 p.m. -
Nonstop1h 31m
Deal found 3/8C$ 479
Thu 3/910:40 a.m. -
Nonstop1h 34m
Mon 7/96:00 a.m. -
1 stop5h 30m
Deal found 1/8C$ 480
Wed 2/910:25 a.m. -
Nonstop1h 35m
Wed 9/912:55 p.m. -
Nonstop1h 32m
Deal found 4/8C$ 483

Find flight deals from Ottawa to Reagan-National

Discover tips and strategies to find the most affordable flight options for your journey from Ottawa (YOW) to Reagan-National (DCA). 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 6 August 2026.

Round-trip from

C$ 441

One-way from

C$ 242

Popular in

October

Cheapest in

January

Average price

C$ 532

Good round-trip deal

C$ 567 or less
Air Canada
  • Air Canada
  • 27/8-30/8
  • 1 total stop
  • 5h 14m total
  • Ottawa to Washington, D.C.
Search Deals
Air Canada
  • Air Canada
  • 17/10
  • Nonstop
  • 1h 35m total
  • Ottawa to Washington, D.C.
Search Deals
Highest demand for flights based on searches. 19% potential increase in price (C$ 203 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 10% potential price decrease (C$ 76 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in August 2026
Search Deals
Price to beat on a round-trip flight from Ottawa to Washington, D.C. Reagan-National.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ottawa to Reagan-National 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 6 August 2026.
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
Quickest round-trip

OttawaWashington, D.C.

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

YOWDCA

Ottawa

Sat 5/9

10:40 a.m.-12:14 p.m.

Nonstop1h 34m

Washington, D.C. Reagan-National

Mon 7/9

12:55 p.m.-2:26 p.m.

Nonstop1h 31m

C$ 447

OttawaWashington, D.C.

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

YOWDCA

Ottawa

Sat 22/8

10:25 a.m.-12:00 p.m.

Nonstop1h 35m

Washington, D.C. Reagan-National

Mon 24/8

6:00 a.m.-10:35 a.m.

1 stop4h 35m

C$ 458

OttawaWashington, D.C.

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

YOWDCA

Ottawa

Wed 2/9

10:25 a.m.-12:00 p.m.

Nonstop1h 35m

Washington, D.C. Reagan-National

Mon 7/9

12:55 p.m.-2:26 p.m.

Nonstop1h 31m

C$ 475

OttawaWashington, D.C.

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

YOWDCA

Ottawa

Wed 14/10

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

1 stop4h 25m

Washington, D.C. Reagan-National

Mon 19/10

6:00 a.m.-10:35 a.m.

1 stop4h 35m

C$ 485

OttawaWashington, D.C.

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

YOWDCA

Ottawa

Tue 1/9

10:25 a.m.-12:00 p.m.

Nonstop1h 35m

Washington, D.C. Reagan-National

Tue 8/9

12:55 p.m.-2:27 p.m.

Nonstop1h 32m

C$ 490

OttawaWashington, D.C.

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

YOWDCA

Ottawa

Mon 31/8

4:00 p.m.-7:57 p.m.

1 stop3h 57m

Washington, D.C. Reagan-National

Mon 7/9

6:00 a.m.-10:35 a.m.

1 stop4h 35m

C$ 492

OttawaWashington, D.C.

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

YOWDCA

Ottawa

Mon 14/9

10:40 a.m.-12:14 p.m.

Nonstop1h 34m

Washington, D.C. Reagan-National

Thu 17/9

12:55 p.m.-2:27 p.m.

Nonstop1h 32m

C$ 515

OttawaWashington, D.C.

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

YOWDCA

Ottawa

Fri 4/9

10:37 a.m.-6:09 p.m.

1 stop7h 32m

Washington, D.C. Reagan-National

Mon 7/9

6:30 a.m.-9:35 p.m.

1 stop15h 05m

C$ 522

OttawaWashington, D.C.

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

YOWDCA

Ottawa

Sat 24/10

5:20 p.m.-10:52 p.m.

1 stop5h 32m

Washington, D.C. Reagan-National

Tue 27/10

9:05 a.m.-1:11 p.m.

1 stop4h 06m

C$ 522
Cheapest one-way

OttawaWashington, D.C.

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

YOWDCA

Ottawa

Sat 10/10

10:25 a.m.-12:00 p.m.

Nonstop1h 35m

C$ 260

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/8

Showing 1-10 of 16 resultsSorted by cheapest first
1
2

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.
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$ 365). Flying from Ottawa to Washington, D.C. Reagan-National Airport in October is currently the most expensive (average of C$ 1,161). 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?

Find hourly flight availability from Ottawa to Reagan-National. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 6 August 2026.

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.

How much does it cost to fly round-trip from Ottawa to Washington, D.C. Reagan-National Airport?

Airfare is below average for this route at the moment.

Ottawa to Washington, D.C. Reagan-National Airport flights typically cost between C$ 468 and C$ 642 in August.
The cheapest round-trip price found within the last 5 days was C$ 441 on Air Canada (27 Aug-30 Aug).

Reviews of airlines servicing Reagan-National

Get insights into the airlines that provide service to Reagan-National. 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 Reagan-National. Reviews last updated 6 August 2026.
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
10,073 reviews
Check prices

Entertainment

7.1

Food

6.7

Comfort

7.3

Boarding

7.7

Crew

8.1

Overall

7.4

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
10,073 reviews
United Airlines
7.4
Good
10,073 reviews
Check prices

Entertainment

7.1

Food

6.7

Comfort

7.3

Boarding

7.7

Crew

8.1

Overall

7.4

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
11,431 reviews
United Airlines
7.4
Good
10,073 reviews
Check prices

Entertainment

7.1

Food

6.7

Comfort

7.3

Boarding

7.7

Crew

8.1

Overall

7.4

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

Find useful and relevant information for your journey from Ottawa to Reagan-National. 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 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 2 outbound flights 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 1h 34m. There are 727 km between Ottawa and Washington, D.C. Reagan-National Airport. Generally, flights for this route are direct.

  • 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$ 271), and Air Canada (C$ 365) offers the cheapest pricing from Ottawa to Washington, D.C. Reagan-National Airport. United Airlines is 53% 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$ 631, our data shows the cheapest flight currently is C$ 476. When looking at the most popular route, (Ottawa - Washington, D.C. Reagan-National), you can expect to pay C$ 476 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$ 365). Flying from Ottawa to Washington, D.C. Reagan-National Airport in October is currently the most expensive (average of C$ 1,161). 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 Washington, D.C. Reagan-National Airport?

Book flights to Washington, D.C. Reagan-National Airport if you plan to visit one of these locations
Silver Spring
Hanover
Oxon Hill
Gaithersburg
Reston
Herndon
Ellicott City
Arlington
Fredericksburg
Alexandria
Rockville

Browse thousands of different options on Cheapflights for your next trip

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Top 2 airlines flying from Ottawa to Reagan-National

Discover the top 2 airlines that operate flights from Ottawa to Reagan-National. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 629,999 searches. Data last updated 6 August 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapestC$ 271AverageC$ 567FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Air CanadaCheapestC$ 365AverageC$ 562FlexibilityNo cancel feeOn-time67%
Search Air Canada flights

Fly with Cheapflights

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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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