In terms of precipitation, rainfall in Ottawa ranges from 50.0 - 93.0 mm per month. June is typically the wettest month, when rainfall can reach 93.0 mm. February is typically the driest time to visit Ottawa when rainfall is around 50.0 mm.

If weather is an important factor for your trip to Ottawa, 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 21.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around -10.0 C).

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

When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 13 days in advance, which can save you up to 90% on flights from State of Washington to Ottawa compared to booking the week you need them. Waiting 13 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at C$ 354. For sooner than that we have options available in the next 3 days from C$ 674.

What is the cheapest month to fly from State of Washington to Ottawa?

Due to multiple factors, expect to potentially pay more when booking in October. For low rates, September can be a great choice for travel to Ottawa. Flights to Ottawa from State of Washington in September are about C$ 733 on average during September, but can be found for as low as C$ 293.

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

Ottawa (YOW) is the airport you will fly into if you book a flight from Washington to Ottawa. It is only a 10.6 km journey from Ottawa (YOW) to Ottawa’s city centre.

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

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

How can I find direct flights from Washington to Ottawa?

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

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

Yes. Cheapflights offers flight deals from Washington to Ottawa 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$ 183+ Flights from Washington to Ottawa

Cheap flight deals from Washington to Ottawa

Round-trip from	C$ 477
One-way from	C$ 183
Popular in	October
Cheapest in	September
Average price	C$ 756

WestJet
13/9-20/9
4 total stops
43h 47m total
Washington to Ottawa

Search Deals

WestJet
16/9
1 total stop
8h 15m total
Washington to Ottawa

Search Deals

High demand for flights, 0% potential price rise

Search Deals

Cheapest flight prices on average. 3% potential price decrease (C$ 35 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in July 2025

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Find flight deals from Washington to Ottawa

Cheapest flights from Washington to Ottawa
Explore the most affordable flight options available from Washington to Ottawa. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 31 July 2025.

Sat 13/91:50 p.m.SEA - YOW

2 stops23h 29mWestJet

Sat 20/97:15 p.m.YOW - SEA

2 stops20h 18mWestJet

Deal found 31/7C$ 477

Fri 5/91:45 p.m.PDX - YOW

1 stop20h 15mMultiple Airlines

Tue 9/93:35 p.m.YOW - PDX

2 stops22h 37mMultiple Airlines

Deal found 30/7C$ 552

Thu 18/910:00 a.m.PDX - YOW

1 stop7h 53mAir Canada

Mon 22/99:35 a.m.YOW - PDX

1 stop8h 11mAir Canada

Deal found 29/7C$ 572

Sat 13/91:50 p.m.SEA - YOW

3 stops24h 31mMultiple Airlines

Sat 20/97:15 p.m.YOW - SEA

2 stops20h 18mMultiple Airlines

Deal found 31/7C$ 610

Fri 12/910:44 p.m.PDX - YOW

1 stop10h 01mUnited Airlines

Sun 14/96:33 a.m.YOW - PDX

1 stop8h 16mUnited Airlines

Deal found 30/7C$ 738

Sat 20/91:45 p.m.PDX - YOW

2 stops23h 34mWestJet

Wed 24/95:15 p.m.YOW - PDX

2 stops22h 50mWestJet

Deal found 28/7C$ 857

Sun 17/812:20 a.m.SEA - YOW

1 stop10h 44mUnited Airlines

Thu 28/85:15 a.m.YOW - SEA

1 stop8h 45mUnited Airlines

Deal found 31/7C$ 1,143

Best flights from Washington to Ottawa
Discover carefully curated flight deals from Washington to Ottawa that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 31 July 2025.

Sat 13/91:50 p.m.SEA - YOW

2 stops23h 29mWestJet

Sat 20/97:15 p.m.YOW - SEA

2 stops20h 18mWestJet

Deal found 31/7C$ 477

Fri 5/91:45 p.m.PDX - YOW

1 stop20h 15mMultiple Airlines

Tue 9/93:35 p.m.YOW - PDX

2 stops22h 37mMultiple Airlines

Deal found 30/7C$ 552

Thu 18/910:00 a.m.PDX - YOW

1 stop7h 53mAir Canada

Mon 22/99:35 a.m.YOW - PDX

1 stop8h 11mAir Canada

Deal found 29/7C$ 572

Fri 12/910:44 p.m.PDX - YOW

1 stop10h 01mUnited Airlines

Sun 14/96:33 a.m.YOW - PDX

1 stop8h 16mUnited Airlines

Deal found 30/7C$ 738

Sat 13/91:50 p.m.SEA - YOW

3 stops24h 31mMultiple Airlines

Sat 20/97:15 p.m.YOW - SEA

2 stops20h 18mMultiple Airlines

Deal found 31/7C$ 610

Sat 20/91:45 p.m.PDX - YOW

2 stops23h 34mWestJet

Wed 24/95:15 p.m.YOW - PDX

2 stops22h 50mWestJet

Deal found 28/7C$ 857

Sun 17/812:20 a.m.SEA - YOW

1 stop10h 44mUnited Airlines

Thu 28/85:15 a.m.YOW - SEA

1 stop8h 45mUnited Airlines

Deal found 31/7C$ 1,143

Last-minute flights from Washington to Ottawa
Discover last-minute flight deals from Washington to Ottawa. Data last updated 31 July 2025 and is based on user searches.

Wed 6/83:10 p.m.PDX - YOW

2 stops22h 56mMultiple Airlines

Thu 14/83:50 p.m.YOW - PDX

3 stops30h 07mMultiple Airlines

Deal found 30/7C$ 1,077

Wed 6/81:50 p.m.PDX - YOW

2 stops13h 55mWestJet

Thu 14/87:50 a.m.YOW - PDX

1 stop8h 14mWestJet

Deal found 30/7C$ 1,110

Wed 6/81:50 p.m.PDX - YOW

2 stops13h 55mWestJet

Thu 14/85:55 a.m.YOW - PDX

2 stops10h 09mWestJet

Deal found 30/7C$ 1,125

Wed 6/89:47 a.m.PDX - YOW

2 stops12h 48mAir Canada

Thu 14/88:45 p.m.YOW - PDX

2 stops15h 45mAir Canada

Deal found 31/7C$ 1,212

Thu 7/87:40 p.m.PDX - YOW

1 stop9h 39mAir Canada

Thu 14/89:25 a.m.YOW - PDX

1 stop8h 25mAir Canada

Deal found 29/7C$ 1,118

Thu 14/87:52 p.m.PDX - YOW

2 stops25h 30mMultiple Airlines

Mon 18/84:25 p.m.YOW - PDX

3 stops29h 32mMultiple Airlines

Deal found 30/7C$ 894

Fri 15/87:35 p.m.SEA - YOW

1 stop14h 28mMultiple Airlines

Mon 18/85:55 a.m.YOW - SEA

2 stops34h 03mMultiple Airlines

Deal found 30/7C$ 754

Sun 17/812:20 a.m.SEA - YOW

1 stop10h 44mUnited Airlines

Thu 28/85:15 a.m.YOW - SEA

1 stop8h 45mUnited Airlines

Deal found 31/7C$ 1,143

Mon 18/87:05 a.m.SEA - YOW

1 stop14h 36mWestJet

Thu 28/86:10 a.m.YOW - SEA

1 stop9h 25mWestJet

Deal found 30/7C$ 670

One-way flights from Washington to Ottawa
Search for one-way flight options from Washington to Ottawa. Find affordable one-way fares based on user searches. Data last updated 31 July 2025.

Tue 16/97:05 a.m.SEA - YOW

1 stop8h 15mWestJet

Deal found 31/7C$ 183

Tue 16/92:05 p.m.SEA - YOW

2 stops19h 58mMultiple Airlines

Deal found 31/7C$ 195

Fri 15/81:56 p.m.PDX - YOW

2 stops23h 00mMultiple Airlines

Deal found 29/7C$ 426

Thu 14/812:20 a.m.SEA - YOW

1 stop10h 44mUnited Airlines

Deal found 30/7C$ 626

Tue 5/812:40 a.m.PDX - YOW

2 stops35h 16mWestJet

Deal found 30/7C$ 631

Fly from

Fly to

Route

Depart

Return

Price

SeattleOttawa

SEA - YOW

SEAYOW

Seattle/Tacoma Intl

Sat 13/9

1:50 p.m.-4:19 p.m.

2 stops23h 29m

Ottawa

Sat 20/9

7:15 p.m.-12:33 p.m.

2 stops20h 18m

C$ 477

PortlandOttawa

PDX - YOW

PDXYOW

Portland

Fri 5/9

1:45 p.m.-1:00 p.m.

1 stop20h 15m

Ottawa

Tue 9/9

3:35 p.m.-11:12 a.m.

2 stops22h 37m

C$ 552

PortlandOttawa

PDX - YOW

PDXYOW

Portland

Thu 18/9

10:00 a.m.-8:53 p.m.

1 stop7h 53m

Ottawa

Mon 22/9

9:35 a.m.-2:46 p.m.

1 stop8h 11m

C$ 572

SeattleOttawa

SEA - YOW

SEAYOW

Seattle/Tacoma Intl

Sat 13/9

1:50 p.m.-5:21 p.m.

3 stops24h 31m

Ottawa

Sat 20/9

7:15 p.m.-12:33 p.m.

2 stops20h 18m

C$ 610

PortlandOttawa

PDX - YOW

PDXYOW

Portland

Fri 12/9

10:44 p.m.-11:45 a.m.

1 stop10h 01m

Ottawa

Sun 14/9

6:33 a.m.-11:49 a.m.

1 stop8h 16m

C$ 738

PortlandOttawa

PDX - YOW

PDXYOW

Portland

Sat 20/9

1:45 p.m.-4:19 p.m.

2 stops23h 34m

Ottawa

Wed 24/9

5:15 p.m.-1:05 p.m.

2 stops22h 50m

C$ 857

SeattleOttawa

SEA - YOW

SEAYOW

Seattle/Tacoma Intl

Sun 17/8

12:20 a.m.-2:04 p.m.

1 stop10h 44m

Ottawa

Thu 28/8

5:15 a.m.-11:00 a.m.

1 stop8h 45m

C$ 1,143

SeattleOttawa

SEA - YOW

SEAYOW

Seattle/Tacoma Intl

Tue 16/9

7:05 a.m.-6:20 p.m.

1 stop8h 15m

C$ 183

SeattleOttawa

SEA - YOW

SEAYOW

Seattle/Tacoma Intl

Tue 16/9

2:05 p.m.-1:03 p.m.

2 stops19h 58m

C$ 195

PortlandOttawa

PDX - YOW

PDXYOW

Portland

Fri 15/8

1:56 p.m.-3:56 p.m.

2 stops23h 00m

C$ 426

Flights are sorted by cheapest round-trip flights first.

Deals found on 31/7

Showing 1-10 of 12 results

Best time to book a flight from Washington to Ottawa

Have a flexible travel schedule? Discover the best time to fly to Ottawa from Washington 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 Washington to Ottawa

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

Currently, October is the cheapest month in which you can book a flight from State of Washington to Ottawa (average of C$ 224). Flying from State of Washington to Ottawa in December is currently the most expensive (average of C$ 326). 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 WA to YOW?

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

Reviews of airlines servicing Ottawa

Get a feel of what it's like to fly with Delta,United Airlines, andWestJet from Washington to Ottawa by reading reviews from past customers. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very good

7,981 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Delta

8.0

Very good

7,981 reviews

Delta

8.0

Very good

7,981 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

United Airlines

7.4

Good

8,900 reviews

Delta

8.0

Very good

7,981 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

WestJet

7.2

Good

2,978 reviews

Delta

8.0

Very good

7,981 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Air Canada

7.1

Good

9,851 reviews

Delta

8.0

Very good

7,981 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

What airport do you fly into for flights to Ottawa from Washington?
Ottawa (YOW) is the airport you will fly into if you book a flight from Washington to Ottawa. It is only a 10.6 km journey from Ottawa (YOW) to Ottawa’s city centre.
Can I find deals for flights from Washington to Ottawa that include hotel bookings?
Yes. In addition to deals on Washington to Ottawa flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Washington to Ottawa?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Washington to Ottawa.
Can I find deals for business class flights from Washington to Ottawa?
Yes. Cheapflights offers flight deals from Washington to Ottawa 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 State of Washington to Ottawa?
Currently, October is the cheapest month in which you can book a flight from State of Washington to Ottawa (average of C$ 224). Flying from State of Washington to Ottawa in December is currently the most expensive (average of C$ 326). 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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Smiths Falls

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Pembroke

Wakefield

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

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Ottawa from Washington today with Cheapflights!

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

Cheapflights helps you find that perfect flight to Ottawa from Washington by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

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

Yes! Cheapflights helps users easily find flights from Washington to Ottawa with no change fees.

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

Yes, Cheapflights offers price alerts on Washington to Ottawa flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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Cheap flights from Washington to Ottawa from C$ 183

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 16/9. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Washington to Ottawa

Keep the following information in mind while searching for Washington to Ottawa flight deals. Data was last updated 31 July 2025.

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Washington to Ottawa

Cheapest flights from Washington to OttawaExplore the most affordable flight options available from Washington to Ottawa. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 31 July 2025.

Explore the most affordable flight options available from Washington to Ottawa. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 31 July 2025.

Cheapflights Fare Finder

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

Best time to book a flight from Washington to Ottawa

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

Cheapflights Insights

Everything you need to know about your flight from Washington to Ottawa

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

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

Find hourly flight availability from Washington to Ottawa. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 31 July 2025.

Reviews of airlines servicing Ottawa

Get insights into the airlines that provide service to Ottawa. 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 Ottawa. Reviews last updated 31 July 2025.

Get a feel of what it's like to fly with Delta,United Airlines, andWestJet from Washington to Ottawa by reading reviews from past customers. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Washington to Ottawa. 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 into for flights to Ottawa from Washington?

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

How can I find direct flights from Washington to Ottawa?

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

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

Travelling to a place near Ottawa?

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Washington to Ottawa

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

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 Washington to Ottawa?

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

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

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

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Cheapest flights from Washington to Ottawa
Explore the most affordable flight options available from Washington to Ottawa. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 31 July 2025.