What airlines fly to State of Washington?

Air Canada, WestJet and United Airlines are the top three most popular airlines that fly to State of Washington from Ottawa according to our data. Air Canada is the first choice among our users, with 64% of people opting to fly with this airline when traveling to State of Washington. Keep in mind that there are 3 different airlines that fly to State of Washington on a routine basis, so you have a few additional options to choose from.

What is the cheapest airline that flies from Ottawa to Washington?

WestJet, Air Canada, and United Airlines are the most popular carriers operating from Ottawa to Washington

When did momondo last update prices for flights from Ottawa Airport to Washington?

Prices for flights from Ottawa Airport to Washington were last updated today.

How many operators does momondo search for flights from Ottawa Airport to Washington?

As of June 2026, there are 3 operators available to choose from for flights from Ottawa Airport to Washington.

How old do you have to be to fly from Ottawa Airport to Washington?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Ottawa Airport to Washington.

What documentation or ID do you need to fly to Washington?

The necessary travel and health documents for your Washington trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$215 Cheap Flights from Ottawa to Washington in 2026

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Ottawa to Washington

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

1:20 pm - 6:45 pm

YOW

SEA

8h 25m

1 stop

7:35 pm - 5:35 am

SEA

YOW

7h 00m

1 stop

$373WestJet

Wed, Sep 30 - Sun, Oct 4

1:20 pm - 6:45 pm

YOW

SEA

8h 25m

1 stop

7:35 pm - 5:35 am

SEA

YOW

7h 00m

1 stop

$374WestJet

Wed, Sep 30 - Sun, Oct 4

1:20 pm - 6:45 pm

YOW

SEA

8h 25m

1 stop

7:35 pm - 5:35 am

SEA

YOW

7h 00m

1 stop

$375WestJet

Fri, Sep 25 - Wed, Sep 30

1:20 pm - 6:45 pm

YOW

SEA

8h 25m

1 stop

7:35 pm - 5:35 am

SEA

YOW

7h 00m

1 stop

$378WestJet

Mon, Aug 10 - Sat, Aug 15

6:25 am - 11:33 am

YOW

PDX

8h 08m

1 stop

10:43 am - 9:35 pm

PDX

YOW

7h 52m

1 stop

$411United Airlines

Tue, Oct 20 - Thu, Oct 22

5:00 am - 7:11 pm

YOW

PDX

17h 11m

1 stop

7:45 pm - 5:54 am

PDX

YOW

7h 09m

1 stop

$436Air Canada

Mon, Aug 24 - Fri, Aug 28

6:00 am - 2:51 pm

YOW

PDX

11h 51m

2 stops

7:45 pm - 5:10 pm

PDX

YOW

18h 25m

2 stops

$449Air Canada

Sat, Aug 29 - Tue, Sep 1

6:00 am - 2:51 pm

YOW

PDX

11h 51m

2 stops

7:45 pm - 5:10 pm

PDX

YOW

18h 25m

2 stops

$450Air Canada

Sat, Aug 29 - Tue, Sep 1

5:00 am - 9:31 am

YOW

PDX

7h 31m

1 stop

7:45 pm - 5:10 pm

PDX

YOW

18h 25m

2 stops

$452Air Canada

Sat, Aug 15 - Mon, Aug 24

6:00 am - 6:53 pm

YOW

PDX

15h 53m

3 stops

8:40 am - 11:54 pm

PDX

YOW

12h 14m

2 stops

$454United Airlines

Sat, Aug 29 - Tue, Sep 1

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Air Canada flights from Ottawa to State of Washington

Our best Air Canada deals on Ottawa to State of Washington flight tickets

Air Canada

Sep 14

YOW5:00 amOttawa

8h 07m

1 stop

SEA10:07 amSeattle/Tacoma Intl

Sep 14

SEA7:20 pmSeattle/Tacoma Intl

7h 38m

1 stop

YOW5:58 amOttawa

$429

Air Canada

Oct 29

YOW7:50 amOttawa

13h 32m

2 stops

SEA6:22 pmSeattle/Tacoma Intl

Nov 2

SEA10:10 amSeattle/Tacoma Intl

9h 22m

2 stops

YOW10:32 pmOttawa

$434

Air Canada

Aug 24

YOW5:00 amOttawa

17h 11m

1 stop

PDX7:11 pmPortland

Aug 28

PDX7:45 pmPortland

7h 09m

1 stop

YOW5:54 amOttawa

$436

WestJet flights from Ottawa to State of Washington

Our best WestJet deals on Ottawa to State of Washington flight tickets

WestJet

Sep 30

YOW1:20 pmOttawa

8h 25m

1 stop

SEA6:45 pmSeattle/Tacoma Intl

Oct 4

SEA7:35 pmSeattle/Tacoma Intl

7h 00m

1 stop

YOW5:35 amOttawa

$373

WestJet

Sep 30

YOW1:20 pmOttawa

8h 25m

1 stop

SEA6:45 pmSeattle/Tacoma Intl

Oct 4

SEA7:35 pmSeattle/Tacoma Intl

7h 00m

1 stop

YOW5:35 amOttawa

$374

WestJet

Sep 25

YOW1:20 pmOttawa

8h 25m

1 stop

SEA6:45 pmSeattle/Tacoma Intl

Sep 30

SEA7:35 pmSeattle/Tacoma Intl

7h 00m

1 stop

YOW5:35 amOttawa

$375

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

OttawaSeattle

YOW - SEA

YOWSEA

Ottawa

Wed 9/30

1:20 pm-6:45 pm

1 stop8h 25m

Seattle/Tacoma Intl

Sun 10/4

7:35 pm-5:35 am

1 stop7h 00m

$373

OttawaSeattle

YOW - SEA

YOWSEA

Ottawa

Wed 9/30

1:20 pm-6:45 pm

1 stop8h 25m

Seattle/Tacoma Intl

Sun 10/4

7:35 pm-5:35 am

1 stop7h 00m

$374

OttawaSeattle

YOW - SEA

YOWSEA

Ottawa

Fri 9/25

1:20 pm-6:45 pm

1 stop8h 25m

Seattle/Tacoma Intl

Wed 9/30

7:35 pm-5:35 am

1 stop7h 00m

$375

OttawaSeattle

YOW - SEA

YOWSEA

Ottawa

Mon 8/10

1:20 pm-6:45 pm

1 stop8h 25m

Seattle/Tacoma Intl

Sat 8/15

7:35 pm-5:35 am

1 stop7h 00m

$378

OttawaPortland

YOW - PDX

YOWPDX

Ottawa

Tue 10/20

6:25 am-11:33 am

1 stop8h 08m

Portland

Thu 10/22

10:43 am-9:35 pm

1 stop7h 52m

$411

OttawaPortland

YOW - PDX

YOWPDX

Ottawa

Mon 8/24

5:00 am-7:11 pm

1 stop17h 11m

Portland

Fri 8/28

7:45 pm-5:54 am

1 stop7h 09m

$436

OttawaPortland

YOW - PDX

YOWPDX

Ottawa

Sat 8/29

6:00 am-2:51 pm

2 stops11h 51m

Portland

Tue 9/1

7:45 pm-5:10 pm

2 stops18h 25m

$449

OttawaPortland

YOW - PDX

YOWPDX

Ottawa

Sat 8/29

6:00 am-2:51 pm

2 stops11h 51m

Portland

Tue 9/1

7:45 pm-5:10 pm

2 stops18h 25m

$450

OttawaPortland

YOW - PDX

YOWPDX

Ottawa

Sat 8/15

5:00 am-9:31 am

1 stop7h 31m

Portland

Mon 8/24

7:45 pm-5:10 pm

2 stops18h 25m

$452

OttawaPortland

YOW - PDX

YOWPDX

Ottawa

Sat 8/29

6:00 am-6:53 pm

3 stops15h 53m

Portland

Tue 9/1

8:40 am-11:54 pm

2 stops12h 14m

$454

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Ottawa to State of Washington

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

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

The month of January is, on average, the cheapest month to fly to State of Washington from Ottawa, with most prices found around $63. If you aren’t able to travel to State of Washington during the month of January, then flying in February is also cheap. Prices for this month can be found on momondo for an average of $143.

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

You are more likely to see cheaper flights to State of Washington from Ottawa when booking weeks ahead of your departure date. In general, you can expect to find flights to State of Washington for around $429 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to State of Washington from Ottawa for as low as $267 on momondo.

Cheap Ottawa to State of Washington flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Ottawa to State of Washington

Fastest flight time	8h 07m
Direct flights	None

The fastest flight from Ottawa to State of Washington takes 8h 07m

There are no direct flights from Ottawa to State of Washington. There are no popular flight routes from Ottawa to State of Washington.

Search flight deals

Frequently asked questions about flying from Ottawa to Washington

When did momondo last update prices for flights from Ottawa Airport to Washington?
Prices for flights from Ottawa Airport to Washington were last updated today.
How many operators does momondo search for flights from Ottawa Airport to Washington?
As of June 2026, there are 3 operators available to choose from for flights from Ottawa Airport to Washington.
How old do you have to be to fly from Ottawa Airport to Washington?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Ottawa Airport to Washington.
What documentation or ID do you need to fly to Washington?
The necessary travel and health documents for your Washington trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Ottawa to State of Washington

Compare and see reviews for airlines that fly from Ottawa to State of Washington with momondo

Airline	Rating	Free Cancellation	Price
United Airlines	PriceFrom $275	Free Cancellation	Rating 7.4 9,885 reviews	Search United Airlines flights
Air Canada	PriceFrom $304	Free Cancellation	Rating 7.1 11,254 reviews	Search Air Canada flights
WestJet	PriceFrom $358	Free Cancellation	Rating 7.2 3,384 reviews	Search WestJet flights

Why use momondo?

Why should I use momondo to find a flight deal from Ottawa to Washington?

Finding the right flight to Washington from Ottawa is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Washington quick and easy, saving you time and money.

Can I find flights from Ottawa to Washington with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Ottawa to Washington flights to just show those with flexible booking policies.

How can momondo help me find flights from Ottawa to Washington?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Washington from Ottawa.

I’m not ready to book a flight from Ottawa to Washington right now. Can momondo alert me if prices change?

Price alerts on flights to Washington from Ottawa are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.