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Cheap flights from Ottawa to District of Columbia from C$ 231

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 26/9. Fares are subject to change and may not be available on all flights or dates of travel.
YOW — IAD
15 Oct — 22 Oct1
1 adult
1 adult, Economy

Cheap 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 15 September 2025.

Round-trip from

C$ 419

One-way from

C$ 231

Popular in

September

Cheapest in

March

Average price

C$ 659

Good round-trip deal

C$ 659 or less

Good one-way deal

C$ 376 or less
United Airlines
  • United Airlines
  • 3/10-4/10
  • 1 total stop
  • 6h 25m total
  • Ottawa to District of Columbia
Search Deals
26/9
  • 26/9
  • 1 total stop
  • 25h 59m total
  • Ottawa to District of Columbia
Search Deals
Highest demand for flights based on searches. 14% potential increase in price (C$ 115 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (C$ 22 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 2025
Search Deals
Price to beat on a round-trip flight from Ottawa to District of Columbia.
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Price to beat on a one-way flight from Ottawa to District of Columbia.
Search Deals

Find flight deals from Ottawa to District of Columbia

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 15 September 2025.

Fri 3/105:50 p.m.YOW - IAD
1 stop4h 43mUnited Airlines
Sat 4/108:16 a.m.IAD - YOW
Nonstop1h 42mUnited Airlines
Deal found 12/9C$ 419
Fri 3/1011:00 a.m.YOW - IAD
1 stop4h 06mPorter Airlines
Sun 5/1011:35 a.m.IAD - YOW
1 stop4h 59mPorter Airlines
Deal found 12/9C$ 429
Tue 16/1212:10 p.m.YOW - IAD
1 stop5h 04mPorter Airlines
Mon 12/111:40 a.m.IAD - YOW
1 stop5h 49mPorter Airlines
Deal found 14/9C$ 436
Mon 6/107:00 a.m.YOW - IAD
1 stop3h 16mPorter Airlines
Fri 17/104:20 p.m.IAD - YOW
1 stop4h 14mPorter Airlines
Deal found 13/9C$ 437
Thu 30/108:40 a.m.YOW - IAD
1 stop8h 34mPorter Airlines
Thu 6/1111:40 a.m.IAD - YOW
1 stop5h 49mPorter Airlines
Deal found 15/9C$ 443
Thu 30/1010:30 a.m.YOW - DCA
Nonstop1h 49mAir Canada
Thu 6/1112:55 p.m.DCA - YOW
Nonstop1h 35mAir Canada
Deal found 15/9C$ 444
Thu 27/116:50 a.m.YOW - IAD
1 stop3h 34mPorter Airlines
Sun 30/1111:40 a.m.IAD - YOW
1 stop5h 49mPorter Airlines
Deal found 13/9C$ 446
Tue 14/103:50 p.m.YOW - IAD
2 stops27h 56mMultiple Airlines
Fri 24/109:58 p.m.IAD - YOW
1 stop18h 59mMultiple Airlines
Deal found 13/9C$ 453
Sat 4/105:55 a.m.YOW - IAD
1 stop9h 11mMultiple Airlines
Sun 5/1011:35 a.m.IAD - YOW
1 stop7h 59mMultiple Airlines
Deal found 13/9C$ 454
Wed 29/1010:50 a.m.YOW - DCA
1 stop5h 06mAir Canada
Wed 5/1112:55 p.m.DCA - YOW
Nonstop1h 35mAir Canada
Deal found 14/9C$ 454
Thu 30/109:30 a.m.YOW - IAD
1 stop8h 57mMultiple Airlines
Thu 6/119:52 p.m.IAD - YOW
2 stops26h 50mMultiple Airlines
Deal found 15/9C$ 457
Fri 17/103:50 p.m.YOW - IAD
2 stops23h 36mMultiple Airlines
Fri 24/109:58 p.m.IAD - YOW
1 stop18h 59mMultiple Airlines
Deal found 13/9C$ 458

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 15 September 2025.
Use the filters below to find and compare flights from Ottawa to District of Columbia that are best for you.

Fly from

Ottawa

Fly to

District of Columbia

Route

Depart

Return

Price

OttawaWashington, D.C.

YOW - IAD

YOWIAD

Ottawa

Fri 3/10

5:50 p.m.-10:33 p.m.

1 stop4h 43m

Washington, D.C. Dulles Intl

Sat 4/10

8:16 a.m.-9:58 a.m.

Nonstop1h 42m

C$ 419

OttawaWashington, D.C.

YOW - IAD

YOWIAD

Ottawa

Tue 16/12

12:10 p.m.-5:14 p.m.

1 stop5h 04m

Washington, D.C. Dulles Intl

Mon 12/1

11:40 a.m.-5:29 p.m.

1 stop5h 49m

C$ 436

OttawaWashington, D.C.

YOW - IAD

YOWIAD

Ottawa

Sat 20/12

8:40 a.m.-12:29 p.m.

1 stop3h 49m

Washington, D.C. Dulles Intl

Sun 21/12

11:40 a.m.-3:04 p.m.

1 stop3h 24m

C$ 436

OttawaWashington, D.C.

YOW - IAD

YOWIAD

Ottawa

Thu 1/1

6:50 a.m.-10:24 a.m.

1 stop3h 34m

Washington, D.C. Dulles Intl

Wed 7/1

6:30 p.m.-10:29 p.m.

1 stop3h 59m

C$ 436

OttawaWashington, D.C.

YOW - DCA

YOWDCA

Ottawa

Thu 30/10

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

Nonstop1h 49m

Washington, D.C. Reagan-National

Thu 6/11

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

Nonstop1h 35m

C$ 444

OttawaWashington, D.C.

YOW - IAD

YOWIAD

Ottawa

Thu 30/10

9:30 a.m.-6:27 p.m.

1 stop8h 57m

Washington, D.C. Dulles Intl

Thu 6/11

9:52 p.m.-12:42 a.m.

2 stops26h 50m

C$ 457

OttawaWashington, D.C.

YOW - IAD

YOWIAD

Ottawa

Wed 8/10

9:35 a.m.-3:06 p.m.

1 stop5h 31m

Washington, D.C. Dulles Intl

Fri 10/10

4:20 p.m.-8:34 p.m.

1 stop4h 14m

C$ 460

OttawaWashington, D.C.

YOW - IAD

YOWIAD

Ottawa

Mon 20/10

7:29 p.m.-9:12 p.m.

Nonstop1h 43m

Washington, D.C. Dulles Intl

Fri 24/10

8:16 a.m.-9:58 a.m.

Nonstop1h 42m

C$ 471

OttawaWashington, D.C.

YOW - IAD

YOWIAD

Ottawa

Thu 27/11

2:15 p.m.-4:09 p.m.

Nonstop1h 54m

Washington, D.C. Dulles Intl

Sun 30/11

10:12 p.m.-11:54 p.m.

Nonstop1h 42m

C$ 471

OttawaWashington, D.C.

YOW - DCA

YOWDCA

Ottawa

Fri 10/10

6:05 a.m.-10:28 a.m.

1 stop4h 23m

Washington, D.C. Reagan-National

Sun 12/10

8:30 a.m.-2:04 p.m.

1 stop5h 34m

C$ 473

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/9

Showing 1-10 of 34 results
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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, February is the cheapest month in which you can book a flight from Ottawa to District of Columbia (average of C$ 256). Flying from Ottawa to District of Columbia in October is currently the most expensive (average of C$ 352). 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 15 September 2025.

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 15 September 2025.

The most flights from YOW to USDC are scheduled on a Monday (6 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (6 on average).

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 15 September 2025.
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
7.9
Good
363 reviews
Check prices

Entertainment

7.0

Comfort

7.9

Boarding

8.1

Overall

7.9

Crew

8.6

Food

7.6

Reviews

1 / 20
2.0
Mediocre

Anonymous,Sep 2025

YYZ - OPO

Very disappointing, booked with Porter airlines and changed to Air Transit last minute. Old plane, cramped seating, even the aisle was the narrowest I’ve ever seen. Very uncomfortable flight. Full meal at 130 am and only a small piece of banana bread in the morning… should be opposite.
Porter Airlines
7.9
Good
363 reviews
Porter Airlines
7.9
Good
363 reviews
Check prices

Entertainment

7.0

Comfort

7.9

Boarding

8.1

Overall

7.9

Crew

8.6

Food

7.6

Reviews

1 / 20
2.0
Mediocre

Anonymous,Sep 2025

YYZ - OPO

Very disappointing, booked with Porter airlines and changed to Air Transit last minute. Old plane, cramped seating, even the aisle was the narrowest I’ve ever seen. Very uncomfortable flight. Full meal at 130 am and only a small piece of banana bread in the morning… should be opposite.
United Airlines
7.4
Good
8,929 reviews
Porter Airlines
7.9
Good
363 reviews
Check prices

Entertainment

7.0

Comfort

7.9

Boarding

8.1

Overall

7.9

Crew

8.6

Food

7.6

Reviews

1 / 20
2.0
Mediocre

Anonymous,Sep 2025

YYZ - OPO

Very disappointing, booked with Porter airlines and changed to Air Transit last minute. Old plane, cramped seating, even the aisle was the narrowest I’ve ever seen. Very uncomfortable flight. Full meal at 130 am and only a small piece of banana bread in the morning… should be opposite.
Air Canada
7.1
Good
10,000 reviews
Porter Airlines
7.9
Good
363 reviews
Check prices

Entertainment

7.0

Comfort

7.9

Boarding

8.1

Overall

7.9

Crew

8.6

Food

7.6

Reviews

1 / 20
2.0
Mediocre

Anonymous,Sep 2025

YYZ - OPO

Very disappointing, booked with Porter airlines and changed to Air Transit last minute. Old plane, cramped seating, even the aisle was the narrowest I’ve ever seen. Very uncomfortable flight. Full meal at 130 am and only a small piece of banana bread in the morning… should be opposite.

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 49m. 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: GoJet (64%), Air Canada (64%), United Airlines (64%).

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

    Looking at all options, your cheapest flight can be booked for C$ 260. While the most popular route (Ottawa - Washington, D.C. Dulles Intl) can be booked for C$ 403 on average, our data indicates C$ 1,182 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, February is the cheapest month in which you can book a flight from Ottawa to District of Columbia (average of C$ 256). Flying from Ottawa to District of Columbia in October is currently the most expensive (average of C$ 352). 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 15 September 2025.
AirlineCheapestAverageFlexibilityOn-time
Porter AirlinesCheapestC$ 333AverageC$ 410FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
United AirlinesCheapestC$ 335AverageC$ 714FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Air CanadaCheapestC$ 342AverageC$ 547FlexibilityNo 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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