How long is the flight from Ottawa to State of Washington?

A quick flight from Ottawa to State of Washington can take about 10h 30m. WestJet provides one of the quickest options available for as low as C$ 505. Airlines will cover a distance of 3529 km. Both multi-stop and direct flights can be found to your destination and back.

In terms of precipitation, rainfall in State of Washington ranges from 18.0 - 168.0 mm per month. November is typically the wettest month, when rainfall can reach 168.0 mm. July is typically the driest time to visit State of Washington when rainfall is around 18.0 mm.

If weather is an important factor for your trip to State of Washington, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 19.0 C. Travellers hoping to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 5.0 C).

What are the most popular routes from Ottawa to State of Washington?

While some choose either Ottawa - Portland or Ottawa - Everett Paine Field, Ottawa - Seattle/Tacoma Intl is the most popular route from Ottawa to State of Washington.

What is the cheapest time of day to fly from YOW to WA?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Ottawa to State of Washington as you normally would.

What airport do you fly from for flights from Ottawa to Washington?

If you book a flight to Washington 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.

Can I find deals for flights from Ottawa to Washington that include hotel bookings?

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

How can I find direct flights from Ottawa to Washington?

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

Can I find deals for business class flights from Ottawa to Washington?

Yes. Cheapflights offers flight deals from Ottawa to Washington by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

C$ 257+ Cheap Flights from Ottawa to Washington

Cheap flight deals from Ottawa to Washington

Enter your travel dates to find the best prices.

Cheapest

Best

Last-minute

One-way

Cheapest flights from Ottawa to Washington
Explore the most affordable flight options available from Ottawa to Washington. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 21 September 2026.

Sat 17/1012:25 p.m. -

2 stops9h 20m

Sat 24/107:35 p.m. -

1 stop7h 00m

Deal found 19/9C$ 445

Fri 20/116:10 a.m. -

1 stop10h 30m

Mon 30/115:48 p.m. -

1 stop27h 13m

Deal found 16/9C$ 447

Thu 19/116:10 a.m. -

1 stop10h 30m

Mon 23/112:30 p.m. -

1 stop21h 00m

Deal found 19/9C$ 449

Thu 12/116:10 a.m. -

1 stop10h 30m

Wed 18/112:30 p.m. -

1 stop21h 00m

Deal found 18/9C$ 492

Thu 15/101:20 p.m. -

1 stop8h 25m

Thu 22/107:35 p.m. -

1 stop7h 00m

Deal found 17/9C$ 524

Tue 20/103:10 p.m. -

1 stop9h 17m

Sat 24/106:44 a.m. -

2 stops14h 10m

Deal found 17/9C$ 598

Tue 20/106:55 a.m. -

1 stop15h 16m

Sat 24/107:45 p.m. -

1 stop7h 13m

Deal found 18/9C$ 635

Wed 14/106:00 a.m. -

3 stops19h 23m

Wed 21/105:00 a.m. -

2 stops14h 35m

Deal found 16/9C$ 670

Fri 23/106:05 a.m. -

1 stop18h 22m

Tue 27/108:30 a.m. -

1 stop7h 57m

Deal found 16/9C$ 687

Sun 11/105:00 a.m. -

1 stop12h 46m

Sat 17/107:45 p.m. -

1 stop7h 13m

Deal found 16/9C$ 688

Sun 11/107:20 a.m. -

1 stop9h 30m

Sat 17/106:09 a.m. -

2 stops20h 26m

Deal found 16/9C$ 733

Fri 30/106:15 a.m. -

1 stop12h 05m

Fri 20/117:00 a.m. -

2 stops13h 11m

Deal found 17/9C$ 763

Best flights from Ottawa to Washington
Discover carefully curated flight deals from Ottawa to Washington that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 21 September 2026.

Thu 19/116:10 a.m. -

1 stop10h 30m

Mon 23/112:30 p.m. -

1 stop21h 00m

Deal found 16/9C$ 505

Tue 20/105:20 p.m. -

2 stops19h 08m

Sat 24/1010:43 a.m. -

2 stops10h 11m

Deal found 17/9C$ 598

Tue 20/106:05 p.m. -

2 stops18h 26m

Sat 24/107:45 p.m. -

1 stop7h 13m

Deal found 20/9C$ 635

Sun 11/107:20 a.m. -

1 stop9h 30m

Sat 17/106:09 a.m. -

2 stops20h 26m

Deal found 16/9C$ 733

Thu 8/105:20 p.m. -

1 stop8h 03m

Tue 20/107:33 p.m. -

2 stops15h 26m

Deal found 16/9C$ 670

Wed 14/106:00 a.m. -

3 stops19h 23m

Wed 21/105:00 a.m. -

2 stops14h 35m

Deal found 16/9C$ 670

Tue 3/1110:30 a.m. -

2 stops11h 47m

Tue 10/113:49 p.m. -

2 stops19h 20m

Deal found 19/9C$ 692

Fri 6/1110:30 a.m. -

2 stops11h 47m

Mon 9/111:58 p.m. -

2 stops21h 31m

Deal found 16/9C$ 698

Mon 26/105:10 a.m. -

2 stops21h 07m

Thu 29/1010:56 p.m. -

1 stop12h 13m

Deal found 20/9C$ 703

Fri 6/115:40 p.m. -

2 stops19h 09m

Mon 9/1110:47 a.m. -

2 stops11h 03m

Deal found 16/9C$ 1,135

Fri 30/109:45 a.m. -

1 stop14h 11m

Tue 3/1110:56 p.m. -

1 stop12h 13m

Deal found 20/9C$ 706

Fri 30/102:00 p.m. -

1 stop9h 56m

Tue 5/15:07 a.m. -

2 stops13h 16m

Deal found 18/9C$ 709

Fri 30/103:10 p.m. -

1 stop9h 29m

Wed 6/15:07 a.m. -

2 stops13h 16m

Deal found 18/9C$ 709

Mon 2/114:46 p.m. -

1 stop9h 21m

Sat 9/15:07 a.m. -

2 stops13h 16m

Deal found 18/9C$ 709

Wed 28/106:15 a.m. -

1 stop9h 04m

Fri 1/17:00 a.m. -

1 stop11h 23m

Deal found 18/9C$ 709

Thu 24/125:40 p.m. -

2 stops19h 15m

Thu 31/128:20 a.m. -

2 stops13h 30m

Deal found 18/9C$ 1,678

Find flight deals from Ottawa to Washington

Round-trip from	C$ 445
One-way from	C$ 257
Popular in	May
Cheapest in	January
Average price	C$ 540

WestJet
17/10-24/10
3 total stops
16h 20m total
Ottawa to Washington

Search Deals

WestJet
19/10-31/12
1 total stop
29h 30m total
Ottawa to Washington

Search Deals

Highest demand for flights based on searches. 9% potential increase in price (C$ 93 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease (C$ 30 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in September 2026

Search Deals

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OttawaSeattle

YOW Ottawa - SEA Seattle/Tacoma Intl

YOWSEA

Ottawa

Tue 16/2

6:10 a.m.-1:40 p.m.

1 stop10h 30m

Seattle/Tacoma Intl

Wed 31/12

12:00 a.m.-3:00 a.m.

Nonstop0h 00m

C$ 309

OttawaSeattle

YOW Ottawa - SEA Seattle/Tacoma Intl

YOWSEA

Ottawa

Wed 21/10

6:15 p.m.-6:45 p.m.

2 stops27h 30m

Seattle/Tacoma Intl

Wed 31/12

12:00 a.m.-3:00 a.m.

Nonstop0h 00m

C$ 310

OttawaSeattle

YOW Ottawa - SEA Seattle/Tacoma Intl

YOWSEA

Ottawa

Tue 20/10

7:20 a.m.-7:49 p.m.

1 stop15h 29m

Seattle/Tacoma Intl

Wed 31/12

12:00 a.m.-3:00 a.m.

Nonstop0h 00m

C$ 317

OttawaSeattle

YOW Ottawa - SEA Seattle/Tacoma Intl

YOWSEA

Ottawa

Wed 21/10

7:20 a.m.-7:49 p.m.

1 stop15h 29m

Seattle/Tacoma Intl

Wed 31/12

12:00 a.m.-3:00 a.m.

Nonstop0h 00m

C$ 317

OttawaSeattle

YOW Ottawa - SEA Seattle/Tacoma Intl

YOWSEA

Ottawa

Mon 2/11

6:55 p.m.-1:40 p.m.

1 stop21h 45m

Seattle/Tacoma Intl

Wed 31/12

12:00 a.m.-3:00 a.m.

Nonstop0h 00m

C$ 330

OttawaSeattle

YOW Ottawa - SEA Seattle/Tacoma Intl

YOWSEA

Ottawa

Mon 15/2

4:15 p.m.-1:40 p.m.

1 stop24h 25m

Seattle/Tacoma Intl

Wed 31/12

12:00 a.m.-3:00 a.m.

Nonstop0h 00m

C$ 330

OttawaSeattle

YOW Ottawa - SEA Seattle/Tacoma Intl

YOWSEA

Ottawa

Sat 5/12

7:50 a.m.-6:22 p.m.

2 stops13h 32m

Seattle/Tacoma Intl

Wed 31/12

12:00 a.m.-3:00 a.m.

Nonstop0h 00m

C$ 368

OttawaSeattle

YOW Ottawa - SEA Seattle/Tacoma Intl

YOWSEA

Ottawa

Thu 18/2

5:30 a.m.-6:38 p.m.

2 stops16h 08m

Seattle/Tacoma Intl

Wed 31/12

12:00 a.m.-3:00 a.m.

Nonstop0h 00m

C$ 372

Quickest round-trip

OttawaSeattle

YOW Ottawa - SEA Seattle/Tacoma Intl

YOWSEA

Ottawa

Sat 5/12

6:15 a.m.-11:44 a.m.

1 stop8h 29m

Seattle/Tacoma Intl

Wed 31/12

12:00 a.m.-3:00 a.m.

Nonstop0h 00m

C$ 382

OttawaSeattle

YOW Ottawa - SEA Seattle/Tacoma Intl

YOWSEA

Ottawa

Sat 31/10

6:00 a.m.-10:11 p.m.

1 stop19h 11m

Seattle/Tacoma Intl

Wed 31/12

12:00 a.m.-3:00 a.m.

Nonstop0h 00m

C$ 390

Flights are sorted by cheapest round-trip flights first.

Deals found on 18/9

Showing 1-10 of 36 resultsSorted by cheapest first

Best time to book a flight from Ottawa to Washington

Have a flexible travel schedule? Discover the best time to fly to Washington from Ottawa with our price prediction graph.

YOW-SEA

YOW-PDX

YOW-PAE

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

YOW-USWA

YOW-SEA

YOW-PDX

YOW-PAE

What is the cheapest month to book a flight from Ottawa to State of Washington?

Currently, January is the cheapest month in which you can book a flight from Ottawa to State of Washington (average of C$ 398). Flying from Ottawa to State of Washington in May is currently the most expensive (average of C$ 853). 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.

How much does it cost to fly round-trip from Ottawa to State of Washington?

Airfare is below average for this route at the moment.

Ottawa to State of Washington flights typically cost between C$ 468 and C$ 695 in October.
The cheapest round-trip price found within the last 5 days was C$ 445 on WestJet (17 Oct-24 Oct).

How far ahead should I book a flight from Ottawa to State of Washington?

The best time to book flights from Ottawa to State of Washington is 5 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

Reviews of airlines servicing Washington

Check out reviews from past customers who have flown with Delta,United Airlines, andWestJet from Ottawa to Washington to help guide your decision. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Delta

7.8

Good

8,591 reviews

Check prices

Reviews

1 / 20

8.0

Excellent

Rakshith,May 2026

TPE - SEA

I got middle seat, but it was cheap $340 for Taipei to PDX ,

Delta

7.8

Good

8,591 reviews

Delta

7.8

Good

8,591 reviews

Check prices

Reviews

1 / 20

8.0

Excellent

Rakshith,May 2026

TPE - SEA

I got middle seat, but it was cheap $340 for Taipei to PDX ,

United Airlines

7.4

Good

10,225 reviews

Delta

7.8

Good

8,591 reviews

Check prices

Reviews

1 / 20

8.0

Excellent

Rakshith,May 2026

TPE - SEA

I got middle seat, but it was cheap $340 for Taipei to PDX ,

WestJet

7.2

Good

3,446 reviews

Delta

7.8

Good

8,591 reviews

Check prices

Reviews

1 / 20

8.0

Excellent

Rakshith,May 2026

TPE - SEA

I got middle seat, but it was cheap $340 for Taipei to PDX ,

Air Canada

7.1

Good

11,657 reviews

Delta

7.8

Good

8,591 reviews

Check prices

Reviews

1 / 20

8.0

Excellent

Rakshith,May 2026

TPE - SEA

I got middle seat, but it was cheap $340 for Taipei to PDX ,

Related info for your journey

What airport do you fly from for flights from Ottawa to Washington?
If you book a flight to Washington 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 State of Washington?
A quick flight from Ottawa to State of Washington can take about 10h 30m. WestJet provides one of the quickest options available for as low as C$ 505. Airlines will cover a distance of 3529 km. Both multi-stop and direct flights can be found to your destination and back.
What are the most popular routes from Ottawa to State of Washington?
While some choose either Ottawa - Portland or Ottawa - Everett Paine Field, Ottawa - Seattle/Tacoma Intl is the most popular route from Ottawa to State of Washington.
Can I find deals for flights from Ottawa to Washington that include hotel bookings?
Yes. In addition to deals on Ottawa to Washington flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Ottawa to Washington?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ottawa to Washington.
Can I find deals for business class flights from Ottawa to Washington?
Yes. Cheapflights offers flight deals from Ottawa to Washington 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 State of Washington?
Currently, January is the cheapest month in which you can book a flight from Ottawa to State of Washington (average of C$ 398). Flying from Ottawa to State of Washington in May is currently the most expensive (average of C$ 853). 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

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Alternative routes for Ottawa to Washington

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Top 4 airlines flying from Ottawa to Washington

Airline	Cheapest	Average	Flexibility	On-time
Air Canada	CheapestC$ 253	AverageC$ 650	FlexibilityNo cancel fee	On-time67%	Search Air Canada flights
United Airlines	CheapestC$ 255	AverageC$ 755	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights
WestJet	CheapestC$ 308	AverageC$ 598	FlexibilityNo cancel fee	On-time60%	Search WestJet flights
Delta	CheapestC$ 397	AverageC$ 1,123	FlexibilityNo cancel fee	On-timeN/A	Search Delta flights

Fly with Cheapflights

How does Cheapflights help users find flights from Ottawa to Washington?

Deals for Ottawa to Washington flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from Ottawa to Washington?

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

Can Cheapflights find flights from Ottawa to Washington with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from Ottawa to Washington, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from Ottawa to Washington become cheaper?

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

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Cheap flights from Ottawa to Washington from C$ 257

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 19/10. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Ottawa to Washington

Cheapest flights from Ottawa to WashingtonExplore the most affordable flight options available from Ottawa to Washington. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 21 September 2026.

Explore the most affordable flight options available from Ottawa to Washington. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 21 September 2026.

Best flights from Ottawa to WashingtonDiscover carefully curated flight deals from Ottawa to Washington that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 21 September 2026.

Discover carefully curated flight deals from Ottawa to Washington that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 21 September 2026.

Last-minute flights from Ottawa to WashingtonDiscover last-minute flight deals from Ottawa to Washington. Data last updated 21 September 2026 and is based on user searches.

Discover last-minute flight deals from Ottawa to Washington. Data last updated 21 September 2026 and is based on user searches.

One-way flights from Ottawa to WashingtonSearch for one-way flight options from Ottawa to Washington. Find affordable one-way fares based on user searches. Data last updated 21 September 2026.

Search for one-way flight options from Ottawa to Washington. Find affordable one-way fares based on user searches. Data last updated 21 September 2026.

Find flight deals from Ottawa to Washington

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Cheapflights Fare Finder

Use the filters below to find and compare flights from Ottawa to Washington that are best for you.

Best time to book a flight from Ottawa to Washington

Have a flexible travel schedule? Discover the best time to fly to Washington from Ottawa with our price prediction graph.

Cheapflights Insights

What is the cheapest month to book a flight from Ottawa to State of Washington?

How much does it cost to fly round-trip from Ottawa to State of Washington?

Airfare is below average for this route at the moment.

Ottawa to State of Washington flights typically cost between C$ 468 and C$ 695 in October.The cheapest round-trip price found within the last 5 days was C$ 445 on WestJet (17 Oct-24 Oct).

How far ahead should I book a flight from Ottawa to State of Washington?

The best time to book flights from Ottawa to State of Washington is 5 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

Reviews of airlines servicing Washington

Check out reviews from past customers who have flown with Delta,United Airlines, andWestJet from Ottawa to Washington to help guide your decision. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

What airport do you fly from for flights from Ottawa to Washington?

How long is the flight from Ottawa to State of Washington?

What are the most popular routes from Ottawa to State of Washington?

Can I find deals for flights from Ottawa to Washington that include hotel bookings?

How can I find direct flights from Ottawa to Washington?

Can I find deals for business class flights from Ottawa to Washington?

What is the cheapest month to book a flight from Ottawa to State of Washington?

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 Washington

See prices for flight routes from nearby airports that may be better suited for you.

Complete your trip

Complete your trip to Washington by adding a car rental and/or hotel reservation to your travel itinerary.

Direct flights to United States

Book a non-stop flight to one of these other cities located in United States.

Search flights from Ottawa to Washington by cabin class

Find flights from Ottawa to Washington, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Ottawa and Washington flights

Browse other Ottawa and Washington flight options. Last updated on 21 September 2026.

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Ottawa to Washington flights

Consider these flights travelling from Ottawa to Washington.

Top 4 airlines flying from Ottawa to Washington

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How does Cheapflights help users find flights from Ottawa to Washington?

Why should you use Cheapflights to find cheap flight tickets from Ottawa to Washington?

Can Cheapflights find flights from Ottawa to Washington with no change fees?

Can Cheapflights notify me if prices for flights from Ottawa to Washington become cheaper?

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Cheapest flights from Ottawa to Washington
Explore the most affordable flight options available from Ottawa to Washington. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 21 September 2026.

Best flights from Ottawa to Washington
Discover carefully curated flight deals from Ottawa to Washington that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 21 September 2026.

Last-minute flights from Ottawa to Washington
Discover last-minute flight deals from Ottawa to Washington. Data last updated 21 September 2026 and is based on user searches.

One-way flights from Ottawa to Washington
Search for one-way flight options from Ottawa to Washington. Find affordable one-way fares based on user searches. Data last updated 21 September 2026.

Ottawa to State of Washington flights typically cost between C$ 468 and C$ 695 in October.
The cheapest round-trip price found within the last 5 days was C$ 445 on WestJet (17 Oct-24 Oct).