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Cheap flights from Ottawa to Washington, D.C. Reagan-National Airport from C$ 234

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 16/12. Fares are subject to change and may not be available on all flights or dates of travel.
YOW — DCA
13 Dec — 20 Dec1
1 adult
1 adult, Economy, 0 bags

Cheapflights Tip: The best prices from Ottawa to Washington, D.C. Reagan-National are usually found in March or January, booked 25 days in advance, depart on a Friday or Wednesday and return on a Saturday

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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 13 November 2025.

Thu 25/125:45 a.m.YOW - DCA
1 stop4h 36mAir Canada
Sun 28/126:00 a.m.DCA - YOW
1 stop5h 20mAir Canada
Deal found 11/11C$ 394
Sat 13/1210:50 a.m.YOW - DCA
1 stop4h 41mAir Canada
Sat 3/16:00 a.m.DCA - YOW
1 stop3h 38mAir Canada
Deal found 11/11C$ 419
Thu 18/125:45 a.m.YOW - DCA
1 stop4h 36mAir Canada
Sun 28/126:00 a.m.DCA - YOW
1 stop5h 20mAir Canada
Deal found 12/11C$ 434
Thu 11/1210:30 a.m.YOW - DCA
Nonstop1h 49mAir Canada
Mon 15/1212:55 p.m.DCA - YOW
Nonstop1h 35mAir Canada
Deal found 12/11C$ 436
Fri 26/129:15 a.m.YOW - DCA
1 stop10h 30mAir Canada
Fri 2/16:00 a.m.DCA - YOW
1 stop5h 18mAir Canada
Deal found 11/11C$ 440
Tue 9/1210:30 a.m.YOW - DCA
Nonstop1h 49mAir Canada
Tue 16/1212:55 p.m.DCA - YOW
Nonstop1h 35mAir Canada
Deal found 11/11C$ 448
Fri 19/129:15 a.m.YOW - DCA
1 stop10h 30mAir Canada
Sat 3/16:00 a.m.DCA - YOW
1 stop3h 38mAir Canada
Deal found 12/11C$ 460
Sat 20/1210:50 a.m.YOW - DCA
1 stop11h 06mAir Canada
Sat 3/16:00 a.m.DCA - YOW
1 stop5h 18mAir Canada
Deal found 11/11C$ 464

Cheap 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 13 November 2025.

Round-trip from

C$ 394

One-way from

C$ 234

Popular in

October

Cheapest in

March

Average price

C$ 513

Good round-trip deal

C$ 517 or less

Good one-way deal

C$ 452 or less
Air Canada
  • Air Canada
  • 25/12-28/12
  • 2 total stops
  • 9h 56m total
  • Ottawa to Washington, D.C.
Search Deals
Air Canada
  • Air Canada
  • 16/12
  • Nonstop
  • 1h 49m total
  • Ottawa to Washington, D.C.
Search Deals
Highest demand for flights based on searches. 11% potential increase in price (C$ 102 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease (C$ 42 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
Search Deals
Price to beat on a round-trip flight from Ottawa to Washington, D.C. Reagan-National.
Search Deals
Price to beat on a one-way 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 13 November 2025.
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

Ottawa

Fly to

Reagan-National

Route

Depart

Return

Price

OttawaWashington, D.C.

YOW - DCA

YOWDCA

Ottawa

Thu 18/12

5:45 a.m.-10:21 a.m.

1 stop4h 36m

Washington, D.C. Reagan-National

Sun 28/12

6:00 a.m.-11:20 a.m.

1 stop5h 20m

C$ 434

OttawaWashington, D.C.

YOW - DCA

YOWDCA

Ottawa

Thu 11/12

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

Nonstop1h 49m

Washington, D.C. Reagan-National

Mon 15/12

4:10 p.m.-10:20 p.m.

1 stop6h 10m

C$ 436

OttawaWashington, D.C.

YOW - DCA

YOWDCA

Ottawa

Fri 26/12

9:15 a.m.-7:45 p.m.

1 stop10h 30m

Washington, D.C. Reagan-National

Fri 2/1

6:00 a.m.-11:18 a.m.

1 stop5h 18m

C$ 440

OttawaWashington, D.C.

YOW - DCA

YOWDCA

Ottawa

Tue 9/12

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

Nonstop1h 49m

Washington, D.C. Reagan-National

Tue 16/12

12:55 p.m.-2:30 p.m.

Nonstop1h 35m

C$ 448

OttawaWashington, D.C.

YOW - DCA

YOWDCA

Ottawa

Mon 26/1

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

Nonstop1h 49m

Washington, D.C. Reagan-National

Fri 6/2

12:55 p.m.-2:30 p.m.

Nonstop1h 35m

C$ 493

OttawaWashington, D.C.

YOW - DCA

YOWDCA

Ottawa

Wed 10/12

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

Nonstop1h 49m

Washington, D.C. Reagan-National

Thu 11/12

12:55 p.m.-2:30 p.m.

Nonstop1h 35m

C$ 493

OttawaWashington, D.C.

YOW - DCA

YOWDCA

Ottawa

Mon 15/12

5:45 a.m.-10:21 a.m.

1 stop4h 36m

C$ 242

OttawaWashington, D.C.

YOW - DCA

YOWDCA

Ottawa

Thu 18/12

10:45 a.m.-3:31 p.m.

1 stop4h 46m

C$ 242

OttawaWashington, D.C.

YOW - DCA

YOWDCA

Ottawa

Tue 16/12

10:45 a.m.-3:31 p.m.

1 stop4h 46m

C$ 242

OttawaWashington, D.C.

YOW - DCA

YOWDCA

Ottawa

Fri 12/12

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

Nonstop1h 49m

C$ 280

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/11

Showing 1-10 of 12 results
1
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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

How far ahead should I book a flight from Ottawa to Washington, D.C. Reagan-National Airport?

Use this chart to determine the optimal time to book a round-trip flight from Ottawa to Reagan-National. Price data was last updated on 7 November 2025.

To ensure you get the cheapest price possible for a flight from Ottawa to Washington, D.C. Reagan-National Airport, you should look to book at least 25 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Currently, March is the cheapest month in which you can book a flight from Ottawa to Washington, D.C. Reagan-National Airport (average of C$ 200). Flying from Ottawa to Washington, D.C. Reagan-National Airport in August is currently the most expensive (average of C$ 367). 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 13 November 2025.

It’s typically best to fly out from Ottawa to Washington, D.C. Reagan-National Airport at noon. Doing so could potentially save you 53% on the flight price compared to flying in the morning, which is usually more expensive.

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 13 November 2025.
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
9,017 reviews
Check prices

Boarding

7.7

Comfort

7.3

Food

6.6

Overall

7.4

Entertainment

7.1

Crew

8.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Oct 2025

YUL - ORD

Crew and customer service are 5 stars. I had a lot of luggage for a very long trip and they were nothing but helpful and found solutions to every problem. It was my first time flying with United, and they really are the friendly skies. Leg room however, on 2/3 flights was terrible. Same for entertainment: There was only a seat-mounted screen on 1/3 flights. It would have been nice to have on the longest leg of the journey.
United Airlines
7.4
Good
9,017 reviews
United Airlines
7.4
Good
9,017 reviews
Check prices

Boarding

7.7

Comfort

7.3

Food

6.6

Overall

7.4

Entertainment

7.1

Crew

8.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Oct 2025

YUL - ORD

Crew and customer service are 5 stars. I had a lot of luggage for a very long trip and they were nothing but helpful and found solutions to every problem. It was my first time flying with United, and they really are the friendly skies. Leg room however, on 2/3 flights was terrible. Same for entertainment: There was only a seat-mounted screen on 1/3 flights. It would have been nice to have on the longest leg of the journey.
Air Canada
7.1
Good
10,448 reviews
United Airlines
7.4
Good
9,017 reviews
Check prices

Boarding

7.7

Comfort

7.3

Food

6.6

Overall

7.4

Entertainment

7.1

Crew

8.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Oct 2025

YUL - ORD

Crew and customer service are 5 stars. I had a lot of luggage for a very long trip and they were nothing but helpful and found solutions to every problem. It was my first time flying with United, and they really are the friendly skies. Leg room however, on 2/3 flights was terrible. Same for entertainment: There was only a seat-mounted screen on 1/3 flights. It would have been nice to have on the longest leg of the journey.

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 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 36m. There are 727 km between Ottawa and Washington, D.C. Reagan-National Airport.

  • 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$ 308), and Air Canada (C$ 317) offers the cheapest pricing from Ottawa to Washington, D.C. Reagan-National Airport. United Airlines is 44% 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 (86%), Jazz (86%), United Airlines( 86%).

  • 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$ 611, our data shows the cheapest flight currently is C$ 318. When looking at the most popular route, (Ottawa - Washington, D.C. Reagan-National), you can expect to pay C$ 499 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, March is the cheapest month in which you can book a flight from Ottawa to Washington, D.C. Reagan-National Airport (average of C$ 200). Flying from Ottawa to Washington, D.C. Reagan-National Airport in August is currently the most expensive (average of C$ 367). 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
Hanover
Fairfax
Reston
Ellicott City
Oxon Hill
Gaithersburg
Herndon
Arlington
Manassas
Fredericksburg
Alexandria
Rockville

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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 13 November 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapestC$ 308AverageC$ 451FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Air CanadaCheapestC$ 317AverageC$ 518FlexibilityNo 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?

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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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