Find flights
Deals
When to book
Airlines
FAQs

Cheap flights from Ottawa to District of Columbia from C$ 250

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 17/7. Fares are subject to change and may not be available on all flights or dates of travel.
YOW — IAD
29 Jul — 5 Aug1
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 29 June 2026.

Sat 18/73:10 p.m.
YOW
-
IAD
1 stop8h 09m
United Airlines
Sun 19/78:18 a.m.
IAD
-
YOW
Nonstop1h 45m
United Airlines
Deal found 29/6C$ 491
Sat 11/75:50 p.m.
YOW
-
IAD
1 stop5h 29m
United Airlines
Sun 12/78:18 a.m.
IAD
-
YOW
Nonstop1h 45m
United Airlines
Deal found 27/6C$ 492
Fri 14/86:00 a.m.
YOW
-
DCA
1 stop4h 18m
Air Canada
Sun 16/86:00 a.m.
DCA
-
YOW
1 stop4h 35m
Air Canada
Deal found 27/6C$ 492
Fri 24/710:40 a.m.
YOW
-
IAD
1 stop4h 31m
Porter Airlines
Sun 26/73:55 p.m.
IAD
-
YOW
1 stop4h 09m
Porter Airlines
Deal found 24/6C$ 494
Tue 11/810:40 a.m.
YOW
-
IAD
1 stop4h 30m
Porter Airlines
Tue 18/811:25 a.m.
IAD
-
YOW
1 stop6h 29m
Porter Airlines
Deal found 26/6C$ 495
Fri 24/710:40 a.m.
YOW
-
IAD
1 stop4h 31m
Porter Airlines
Fri 31/73:55 p.m.
IAD
-
YOW
1 stop4h 09m
Porter Airlines
Deal found 24/6C$ 497
Sun 12/75:10 a.m.
YOW
-
DCA
1 stop3h 42m
Air Canada
Sat 18/76:00 a.m.
DCA
-
YOW
1 stop4h 35m
Air Canada
Deal found 28/6C$ 497
Sun 12/75:10 a.m.
YOW
-
DCA
1 stop3h 42m
Air Canada
Mon 13/76:00 a.m.
DCA
-
YOW
1 stop4h 35m
Air Canada
Deal found 28/6C$ 498
Fri 10/710:40 a.m.
YOW
-
IAD
1 stop4h 31m
Porter Airlines
Sun 4/103:50 p.m.
IAD
-
YOW
1 stop4h 14m
Porter Airlines
Deal found 26/6C$ 500
Fri 10/710:40 a.m.
YOW
-
IAD
1 stop4h 31m
Porter Airlines
Fri 25/93:50 p.m.
IAD
-
YOW
1 stop5h 54m
Porter Airlines
Deal found 26/6C$ 501
Fri 24/710:25 a.m.
YOW
-
DCA
Nonstop1h 35m
Air Canada
Sun 26/76:00 a.m.
DCA
-
YOW
1 stop4h 35m
Air Canada
Deal found 24/6C$ 501
Fri 24/710:40 a.m.
YOW
-
IAD
1 stop4h 31m
Porter Airlines
Tue 28/73:55 p.m.
IAD
-
YOW
1 stop4h 09m
Porter Airlines
Deal found 25/6C$ 504

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 29 June 2026.

Round-trip from

C$ 491

One-way from

C$ 250

Popular in

May

Cheapest in

August

Average price

C$ 575

Good round-trip deal

C$ 653 or less

Good one-way deal

C$ 324 or less
United Airlines
  • United Airlines
  • 18/7-19/7
  • 1 total stop
  • 9h 54m total
  • Ottawa to District of Columbia
Search Deals
Porter Airlines
  • Porter Airlines
  • 17/7
  • 1 total stop
  • 4h 31m total
  • Ottawa to District of Columbia
Search Deals
Highest demand for flights based on searches. 12% potential increase in price (C$ 116 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (C$ 32 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 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 29 June 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 - IAD

YOWIAD

Ottawa

Fri 24/7

10:40 a.m.-3:11 p.m.

1 stop4h 31m

Washington, D.C. Dulles Intl

Tue 28/7

3:55 p.m.-8:04 p.m.

1 stop4h 09m

C$ 505

OttawaWashington, D.C.

YOW - DCA

YOWDCA

Ottawa

Fri 25/9

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

1 stop4h 20m

Washington, D.C. Reagan-National

Mon 28/9

4:20 p.m.-8:50 p.m.

1 stop4h 30m

C$ 512

OttawaWashington, D.C.

YOW - IAD

YOWIAD

Ottawa

Sat 8/8

9:15 a.m.-3:10 p.m.

1 stop5h 55m

Washington, D.C. Dulles Intl

Tue 18/8

3:50 p.m.-9:44 p.m.

1 stop5h 54m

C$ 538

OttawaWashington, D.C.

YOW - IAD

YOWIAD

Ottawa

Tue 11/8

10:40 a.m.-3:10 p.m.

1 stop4h 30m

Washington, D.C. Dulles Intl

Tue 18/8

11:25 a.m.-5:54 p.m.

1 stop6h 29m

C$ 538

OttawaWashington, D.C.

YOW - IAD

YOWIAD

Ottawa

Fri 21/8

2:52 p.m.-4:35 p.m.

Nonstop1h 43m

Washington, D.C. Dulles Intl

Sun 23/8

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

1 stop4h 37m

C$ 545

OttawaWashington, D.C.

YOW - IAD

YOWIAD

Ottawa

Sat 10/10

2:52 p.m.-4:35 p.m.

Nonstop1h 43m

Washington, D.C. Dulles Intl

Sat 10/10

10:10 p.m.-11:54 p.m.

Nonstop1h 44m

C$ 559

OttawaWashington, D.C.

YOW - IAD

YOWIAD

Ottawa

Sat 11/7

7:30 p.m.-9:13 p.m.

Nonstop1h 43m

Washington, D.C. Dulles Intl

Sun 4/10

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

Nonstop1h 42m

C$ 569

OttawaWashington, D.C.

YOW - IAD

YOWIAD

Ottawa

Fri 25/9

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

Nonstop1h 44m

Washington, D.C. Dulles Intl

Mon 28/9

10:40 p.m.-9:11 a.m.

1 stop10h 31m

C$ 571

OttawaWashington, D.C.

YOW - IAD

YOWIAD

Ottawa

Fri 24/7

10:00 a.m.-11:43 a.m.

Nonstop1h 43m

Washington, D.C. Dulles Intl

Tue 28/7

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

1 stop4h 37m

C$ 578

OttawaWashington, D.C.

YOW - IAD

YOWIAD

Ottawa

Sun 9/8

6:00 a.m.-7:44 a.m.

Nonstop1h 44m

Washington, D.C. Dulles Intl

Mon 17/8

5:45 p.m.-10:35 p.m.

1 stop4h 50m

C$ 578

Flights are sorted by cheapest round-trip flights first.

Deals found on 28/6

Showing 1-10 of 41 resultsSorted by cheapest first
1
2
3
...
5

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, August is the cheapest month in which you can book a flight from Ottawa to District of Columbia (average of C$ 162). Flying from Ottawa to District of Columbia in October is currently the most expensive (average of C$ 392). 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 29 June 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 29 June 2026.

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

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

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 29 June 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
441 reviews
Check prices

Boarding

8.2

Food

7.5

Overall

8.0

Comfort

8.0

Entertainment

6.9

Crew

8.6

Reviews

1 / 20
6.0
Good

Justin,May 2026

YYZ - MCO

Staff very nice. Seats were uncomfortable. Complimentary snacks leave much to be desired.
Porter Airlines
8.0
Very good
441 reviews
Porter Airlines
8.0
Very good
441 reviews
Check prices

Boarding

8.2

Food

7.5

Overall

8.0

Comfort

8.0

Entertainment

6.9

Crew

8.6

Reviews

1 / 20
6.0
Good

Justin,May 2026

YYZ - MCO

Staff very nice. Seats were uncomfortable. Complimentary snacks leave much to be desired.
United Airlines
7.4
Good
9,896 reviews
Porter Airlines
8.0
Very good
441 reviews
Check prices

Boarding

8.2

Food

7.5

Overall

8.0

Comfort

8.0

Entertainment

6.9

Crew

8.6

Reviews

1 / 20
6.0
Good

Justin,May 2026

YYZ - MCO

Staff very nice. Seats were uncomfortable. Complimentary snacks leave much to be desired.
Air Canada
7.1
Good
11,270 reviews
Porter Airlines
8.0
Very good
441 reviews
Check prices

Boarding

8.2

Food

7.5

Overall

8.0

Comfort

8.0

Entertainment

6.9

Crew

8.6

Reviews

1 / 20
6.0
Good

Justin,May 2026

YYZ - MCO

Staff very nice. Seats were uncomfortable. Complimentary snacks leave much to be desired.

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 4h 20m. The distance between Ottawa and District of Columbia is about 727 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: Avianca (100%), Republic Airways (95%), United Airlines (89%).

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

    Looking at all options, your cheapest flight can be booked for C$ 292. While the most popular route (Ottawa - Washington, D.C. Dulles Intl) can be booked for C$ 422 on average, our data indicates C$ 991 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, August is the cheapest month in which you can book a flight from Ottawa to District of Columbia (average of C$ 162). Flying from Ottawa to District of Columbia in October is currently the most expensive (average of C$ 392). 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

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Ottawa to District of Columbia

See prices for flight routes from nearby airports that may be better suited for you.
Toronto Island to Newark flights
Pearson Intl to Newark flights
Pearson Intl to LaGuardia flights
Toronto Island to LaGuardia flights
Pearson Intl to John F Kennedy Intl flights
Pearson Intl to Fort Lauderdale flights
Pierre Elliott Trudeau Intl to LaGuardia flights
Toronto Island to John F Kennedy Intl flights
Pearson Intl to Dallas/Fort Worth flights
Pierre Elliott Trudeau Intl to Newark flights
Pearson Intl to Hobby flights
Pearson Intl to Los Angeles flights
Pearson Intl to Orlando flights
Pierre Elliott Trudeau Intl to Miami flights
Pearson Intl to Las Vegas flights
Pearson Intl to Miami flights
Pierre Elliott Trudeau Intl to Fort Lauderdale flights
Pearson Intl to Seattle flights
Hamilton to Newark flights
Pearson Intl to George Bush Intcntl flights
Pearson Intl to San Francisco flights
Pierre Elliott Trudeau Intl to John F Kennedy Intl flights
Pearson Intl to Reagan-National flights
Pearson Intl to Dulles Intl flights
Pierre Elliott Trudeau Intl to Los Angeles flights
Pearson Intl to Nashville flights
Pierre Elliott Trudeau Intl to Orlando flights
Pearson Intl to Atlanta flights
Pearson Intl to O'Hare Intl flights
Toronto Island to Fort Lauderdale flights
Pierre Elliott Trudeau Intl to Las Vegas flights
Toronto Island to Orlando flights
Pearson Intl to Ontario flights
Pierre Elliott Trudeau Intl to O'Hare Intl flights
Pearson Intl to Philadelphia flights
Toronto Island to Dulles Intl flights
Pearson Intl to San Diego flights
Pearson Intl to Boston flights
Toronto Island to Boston flights
Pierre Elliott Trudeau Intl to Hobby flights
Pearson Intl to Tampa flights
Pearson Intl to Love Field flights
Pearson Intl to Midway flights
Toronto Island to Los Angeles flights
Pierre Elliott Trudeau Intl to Boston flights
Pearson Intl to Denver flights
Pierre Elliott Trudeau Intl to San Francisco flights
Region of Waterloo Intl to Los Angeles flights
Toronto Island to George Bush Intcntl flights

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 29 June 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapestC$ 273AverageC$ 726FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Porter AirlinesCheapestC$ 340AverageC$ 426FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
Air CanadaCheapestC$ 369AverageC$ 603FlexibilityNo 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.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.