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Cheap flights from Ottawa to District of Columbia from C$ 229

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 27/9. Fares are subject to change and may not be available on all flights or dates of travel.
YOW — IAD
16 Sep — 23 Sep1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Ottawa to District of Columbia

Enter your travel dates to find the best prices.

Cheapest flights from Ottawa to District of Columbia
Explore the most affordable flight options available from Ottawa to District of Columbia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 17 August 2026.

Sat 19/912:15 p.m. -
1 stop4h 23m
Sun 20/95:20 p.m. -
1 stop4h 32m
Deal found 13/8C$ 427
Sat 19/95:57 p.m. -
1 stop5h 02m
Sun 20/98:15 a.m. -
Nonstop1h 41m
Deal found 13/8C$ 428
Tue 22/910:40 a.m. -
Nonstop1h 34m
Wed 23/912:55 p.m. -
Nonstop1h 32m
Deal found 17/8C$ 428
Fri 4/1212:15 p.m. -
1 stop5h 28m
Mon 7/1211:20 a.m. -
1 stop4h 49m
Deal found 16/8C$ 437
Sat 19/911:10 a.m. -
1 stop4h 30m
Sun 20/96:00 a.m. -
1 stop4h 18m
Deal found 13/8C$ 437
Mon 12/1010:40 a.m. -
1 stop4h 30m
Sun 18/1011:25 a.m. -
1 stop6h 27m
Deal found 13/8C$ 438
Mon 28/96:55 a.m. -
1 stop8h 15m
Wed 30/96:13 p.m. -
2 stops30h 07m
Deal found 13/8C$ 440
Thu 17/910:40 a.m. -
1 stop4h 30m
Sat 19/911:25 a.m. -
1 stop7h 42m
Deal found 14/8C$ 441
Thu 10/910:40 a.m. -
Nonstop1h 34m
Sun 13/96:00 a.m. -
1 stop4h 29m
Deal found 17/8C$ 441
Thu 8/1012:15 p.m. -
1 stop4h 23m
Tue 13/105:15 p.m. -
1 stop4h 37m
Deal found 12/8C$ 442
Thu 8/1010:25 a.m. -
Nonstop1h 35m
Tue 13/1012:40 p.m. -
Nonstop1h 30m
Deal found 13/8C$ 442
Fri 30/1012:15 p.m. -
1 stop4h 18m
Sun 1/115:15 p.m. -
1 stop4h 37m
Deal found 12/8C$ 459

Find flight deals from Ottawa to District of Columbia

Keep the following information in mind while searching for Ottawa to District of Columbia flight deals. Data was last updated 17 August 2026.

Round-trip from

C$ 427

One-way from

C$ 229

Popular in

May

Cheapest in

December

Average price

C$ 623

Good round-trip deal

C$ 560 or less

Good one-way deal

C$ 426 or less
Air Canada
  • Air Canada
  • 19/9-20/9
  • 2 total stops
  • 8h 55m total
  • Ottawa to District of Columbia
Search Deals
Porter Airlines
  • Porter Airlines
  • 27/9
  • 1 total stop
  • 4h 30m total
  • Ottawa to District of Columbia
Search Deals
Highest demand for flights based on searches. 8% potential increase in price (C$ 73 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (C$ 26 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 District of Columbia.
Search Deals
Price to beat on a one-way flight from Ottawa to District of Columbia.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ottawa to District of Columbia 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 17 August 2026.
Use the filters below to find and compare flights from Ottawa to District of Columbia that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OttawaWashington, D.C.

YOW Ottawa - IAD Washington, D.C. Dulles Intl

YOWIAD

Ottawa

Wed 28/10

12:15 p.m.-4:33 p.m.

1 stop4h 18m

Washington, D.C. Dulles Intl

Thu 29/10

5:15 p.m.-9:52 p.m.

1 stop4h 37m

C$ 442

OttawaWashington, D.C.

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

YOWDCA

Ottawa

Tue 22/9

6:00 a.m.-10:20 a.m.

1 stop4h 20m

Washington, D.C. Reagan-National

Wed 23/9

6:00 a.m.-11:30 a.m.

1 stop5h 30m

C$ 452

OttawaWashington, D.C.

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

YOWDCA

Ottawa

Thu 10/9

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

Nonstop1h 34m

Washington, D.C. Reagan-National

Sun 13/9

6:00 a.m.-10:29 a.m.

1 stop4h 29m

C$ 485

OttawaWashington, D.C.

YOW Ottawa - IAD Washington, D.C. Dulles Intl

YOWIAD

Ottawa

Wed 14/10

6:00 a.m.-7:43 a.m.

Nonstop1h 43m

Washington, D.C. Dulles Intl

Sun 18/10

8:15 a.m.-9:56 a.m.

Nonstop1h 41m

C$ 487

OttawaWashington, D.C.

YOW Ottawa - IAD Washington, D.C. Dulles Intl

YOWIAD

Ottawa

Mon 28/9

7:30 p.m.-9:14 p.m.

Nonstop1h 44m

Washington, D.C. Dulles Intl

Wed 30/9

12:35 p.m.-2:17 p.m.

Nonstop1h 42m

C$ 487

OttawaWashington, D.C.

YOW Ottawa - IAD Washington, D.C. Dulles Intl

YOWIAD

Ottawa

Fri 23/10

7:30 p.m.-9:14 p.m.

Nonstop1h 44m

Washington, D.C. Dulles Intl

Thu 29/10

1:19 p.m.-3:07 p.m.

Nonstop1h 48m

C$ 487

OttawaWashington, D.C.

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

YOWDCA

Ottawa

Thu 5/11

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

Nonstop1h 49m

Washington, D.C. Reagan-National

Tue 10/11

6:00 a.m.-9:47 a.m.

1 stop3h 47m

C$ 487

OttawaWashington, D.C.

YOW Ottawa - IAD Washington, D.C. Dulles Intl

YOWIAD

Ottawa

Fri 18/9

6:00 a.m.-7:43 a.m.

Nonstop1h 43m

Washington, D.C. Dulles Intl

Mon 21/9

5:20 p.m.-9:52 p.m.

1 stop4h 32m

C$ 494

OttawaWashington, D.C.

YOW Ottawa - IAD Washington, D.C. Dulles Intl

YOWIAD

Ottawa

Fri 23/10

7:30 p.m.-9:14 p.m.

Nonstop1h 44m

Washington, D.C. Dulles Intl

Thu 29/10

5:15 p.m.-9:52 p.m.

1 stop4h 37m

C$ 494

OttawaWashington, D.C.

YOW Ottawa - IAD Washington, D.C. Dulles Intl

YOWIAD

Ottawa

Thu 8/10

6:00 a.m.-7:43 a.m.

Nonstop1h 43m

Washington, D.C. Dulles Intl

Mon 12/10

5:15 p.m.-9:52 p.m.

1 stop4h 37m

C$ 494

Flights are sorted by cheapest round-trip flights first.

Deals found on 15/8

Showing 1-10 of 39 resultsSorted by cheapest first
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Best time to book a flight from Ottawa to District of Columbia

Have a flexible travel schedule? Discover the best time to fly to District of Columbia 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 District of Columbia

What is the cheapest month to book a flight from Ottawa to District of Columbia?

Currently, January is the cheapest month in which you can book a flight from Ottawa to District of Columbia (average of C$ 460). Flying from Ottawa to District of Columbia in May is currently the most expensive (average of C$ 614). 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 DC?

Find hourly flight availability from Ottawa to District of Columbia. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 17 August 2026.

When flying from Ottawa to District of Columbia, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Weekly flight availability from Ottawa to District of Columbia

Explore weekly flight availability from Ottawa to District of Columbia. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 17 August 2026.

The most flights from YOW to USDC are scheduled on a Monday (8 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (7 on average).

How much does it cost to fly round-trip from Ottawa to District of Columbia?

Airfare is below average for this route at the moment.
Ottawa to District of Columbia flights typically cost between C$ 542 and C$ 793 in September.
The cheapest round-trip price found within the last 5 days was C$ 427 on Air Canada (19 Sep-20 Sep).

Reviews of airlines servicing District of Columbia

Get insights into the airlines that provide service to District of Columbia. 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 District of Columbia. Reviews last updated 17 August 2026.
See what other customers who have flown with Porter Airlines,United Airlines, andAir Canada from Ottawa to District of Columbia have to say. 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.
Porter Airlines
8.0
Very good
457 reviews
Check prices

Comfort

8.0

Boarding

8.2

Entertainment

6.9

Crew

8.6

Overall

8.0

Food

7.6

Reviews

1 / 20
10.0
Excellent

Regan,Aug 2026

YYZ - YVR

My first flight with an all female flight crew who were the best ever.
Porter Airlines
8.0
Very good
457 reviews
Porter Airlines
8.0
Very good
457 reviews
Check prices

Comfort

8.0

Boarding

8.2

Entertainment

6.9

Crew

8.6

Overall

8.0

Food

7.6

Reviews

1 / 20
10.0
Excellent

Regan,Aug 2026

YYZ - YVR

My first flight with an all female flight crew who were the best ever.
United Airlines
7.4
Good
10,106 reviews
Porter Airlines
8.0
Very good
457 reviews
Check prices

Comfort

8.0

Boarding

8.2

Entertainment

6.9

Crew

8.6

Overall

8.0

Food

7.6

Reviews

1 / 20
10.0
Excellent

Regan,Aug 2026

YYZ - YVR

My first flight with an all female flight crew who were the best ever.
Air Canada
7.1
Good
11,487 reviews
Porter Airlines
8.0
Very good
457 reviews
Check prices

Comfort

8.0

Boarding

8.2

Entertainment

6.9

Crew

8.6

Overall

8.0

Food

7.6

Reviews

1 / 20
10.0
Excellent

Regan,Aug 2026

YYZ - YVR

My first flight with an all female flight crew who were the best ever.

Related info for your journey

Find useful and relevant information for your journey from Ottawa to District of Columbia. 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 District of Columbia?

    If you book a flight to District of Columbia from Ottawa, you will be flying from Ottawa, which is the city’s only airport. Ottawa (YOW) is located 10.6 km from the centre of Ottawa.

  • How long is the flight from Ottawa to District of Columbia?

    Departing from Ottawa to District of Columbia will take you 1h 43m. The distance between Ottawa and District of Columbia is about 723 km. Both multi-stop and direct flights can be found to your destination and back.

  • What are the most reliable airlines from Ottawa to District of Columbia?

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Ottawa to District of Columbia on time: Republic Airways (84%), Air Canada (78%), United Airlines (78%).

  • What are the cheapest flights from Ottawa to District of Columbia?

    Looking at all options, your cheapest flight can be booked for C$ 329. While the most popular route (Ottawa - Washington, D.C. Dulles Intl) can be booked for C$ 406 on average, our data indicates C$ 1,953 when flying from Ottawa to District of Columbia.

  • Can I find deals for flights from Ottawa to District of Columbia that include hotel bookings?

    Yes. In addition to deals on Ottawa to District of Columbia flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Ottawa to District of Columbia?

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

  • Can I find deals for business class flights from Ottawa to District of Columbia?

    Yes. Cheapflights offers flight deals from Ottawa to District of Columbia 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 District of Columbia?

    Currently, January is the cheapest month in which you can book a flight from Ottawa to District of Columbia (average of C$ 460). Flying from Ottawa to District of Columbia in May is currently the most expensive (average of C$ 614). 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

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Top 3 airlines flying from Ottawa to District of Columbia

Discover the top 3 airlines that operate flights from Ottawa to District of Columbia. 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 17 August 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapestC$ 267AverageC$ 729FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Porter AirlinesCheapestC$ 317AverageC$ 433FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
Air CanadaCheapestC$ 361AverageC$ 618FlexibilityNo cancel feeOn-time67%
Search Air Canada flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Ottawa to District of Columbia?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Ottawa to District of Columbia. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from Ottawa to District of Columbia?

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Ottawa to District of Columbia for you. Better yet — we are completely free to use.

Can Cheapflights find flights from Ottawa to District of Columbia with no change fees?

Certainly. Search results for flights to District of Columbia from Ottawa shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from Ottawa to District of Columbia become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to District of Columbia from Ottawa today and book when prices fit your budget.

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