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

WestJet is the most popular carrier operating from Ottawa to Washington

Which 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 57% of people opting to fly with this airline when travelling to State of Washington. Keep in mind that there are 4 different airlines that fly to State of Washington on a routine basis, so you have a few additional options to choose from.

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?

The number of operators available for flights from Ottawa Airport to Washington is 3 as of May 2026.

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

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Ottawa Airport to Washington.

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

The travel and health documents you'll need for your trip to Washington may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Washington. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

C$ 245 Cheap Flights from Ottawa to Washington in 2026

1 adult

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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.

7:20 a.m. - 1:50 p.m.

YOW

PDX

9h 30m

1 stop

2:30 p.m. - 12:40 a.m.

PDX

YOW

7h 10m

1 stop

C$ 415WestJet

Mon, 27 Jul - Thu, 6 Aug

7:20 a.m. - 1:50 p.m.

YOW

PDX

9h 30m

1 stop

2:30 p.m. - 12:40 a.m.

PDX

YOW

7h 10m

1 stop

C$ 421WestJet

Tue, 28 Jul - Thu, 6 Aug

1:20 p.m. - 6:45 p.m.

YOW

SEA

8h 25m

1 stop

7:35 p.m. - 5:35 a.m.

SEA

YOW

7h 00m

1 stop

C$ 423WestJet

Fri, 25 Sep - Mon, 28 Sep

6:55 a.m. - 1:50 p.m.

YOW

PDX

9h 55m

2 stops

2:30 p.m. - 12:40 a.m.

PDX

YOW

7h 10m

1 stop

C$ 430WestJet

Tue, 28 Jul - Thu, 6 Aug

6:15 p.m. - 1:50 p.m.

YOW

PDX

22h 35m

2 stops

2:30 p.m. - 12:40 a.m.

PDX

YOW

7h 10m

1 stop

C$ 432WestJet

Mon, 27 Jul - Thu, 6 Aug

1:20 p.m. - 6:45 p.m.

YOW

SEA

8h 25m

1 stop

10:30 a.m. - 12:20 a.m.

SEA

YOW

10h 50m

2 stops

C$ 435WestJet

Sat, 1 Aug - Mon, 31 Aug

6:55 a.m. - 6:45 p.m.

YOW

SEA

14h 50m

2 stops

7:35 p.m. - 5:35 a.m.

SEA

YOW

7h 00m

1 stop

C$ 439WestJet

Fri, 25 Sep - Mon, 28 Sep

1:20 p.m. - 6:45 p.m.

YOW

SEA

8h 25m

1 stop

10:30 a.m. - 12:20 a.m.

SEA

YOW

10h 50m

2 stops

C$ 446WestJet

Wed, 10 Jun - Fri, 12 Jun

6:55 a.m. - 6:45 p.m.

YOW

SEA

14h 50m

2 stops

10:30 a.m. - 12:20 a.m.

SEA

YOW

10h 50m

2 stops

C$ 449WestJet

Fri, 25 Sep - Mon, 28 Sep

7:20 a.m. - 1:50 p.m.

YOW

PDX

9h 30m

1 stop

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

PDX

YOW

19h 00m

2 stops

C$ 450WestJet

Mon, 27 Jul - Tue, 28 Jul

WestJet flights from Ottawa to State of Washington

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

WestJet

27 Jul

YOW7:20 a.m.Ottawa

9h 30m

1 stop

PDX1:50 p.m.Portland

6 Aug

PDX2:30 p.m.Portland

7h 10m

1 stop

YOW12:40 a.m.Ottawa

C$ 415

WestJet

28 Jul

YOW7:20 a.m.Ottawa

9h 30m

1 stop

PDX1:50 p.m.Portland

6 Aug

PDX2:30 p.m.Portland

7h 10m

1 stop

YOW12:40 a.m.Ottawa

C$ 421

WestJet

25 Sep

YOW1:20 p.m.Ottawa

8h 25m

1 stop

SEA6:45 p.m.Seattle/Tacoma Intl

28 Sep

SEA7:35 p.m.Seattle/Tacoma Intl

7h 00m

1 stop

YOW5:35 a.m.Ottawa

C$ 423

United Airlines flights from Ottawa to State of Washington

Our best United Airlines deals on Ottawa to State of Washington flight tickets

United Airlines

29 May

YOW3:10 p.m.Ottawa

9h 38m

1 stop

PDX9:48 p.m.Portland

1 Jun

PDX11:40 p.m.Portland

14h 27m

1 stop

YOW5:07 p.m.Ottawa

C$ 588

United Airlines

29 May

YOW5:50 p.m.Ottawa

18h 38m

1 stop

PDX9:28 a.m.Portland

1 Jun

PDX11:30 p.m.Portland

7h 33m

1 stop

YOW10:03 a.m.Ottawa

C$ 607

United Airlines

22 Jun

YOW5:25 p.m.Ottawa

18h 45m

1 stop

PDX9:10 a.m.Portland

29 Jun

PDX6:50 p.m.Portland

12h 13m

2 stops

YOW10:03 a.m.Ottawa

C$ 650

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OttawaPortland

YOW - PDX

YOWPDX

Ottawa

Mon 27/7

7:20 a.m.-1:50 p.m.

1 stop9h 30m

Portland

Thu 6/8

2:30 p.m.-12:40 a.m.

1 stop7h 10m

C$ 415

OttawaPortland

YOW - PDX

YOWPDX

Ottawa

Tue 28/7

7:20 a.m.-1:50 p.m.

1 stop9h 30m

Portland

Thu 6/8

2:30 p.m.-12:40 a.m.

1 stop7h 10m

C$ 421

Quickest round-trip

OttawaSeattle

YOW - SEA

YOWSEA

Ottawa

Fri 25/9

1:20 p.m.-6:45 p.m.

1 stop8h 25m

Seattle/Tacoma Intl

Mon 28/9

7:35 p.m.-5:35 a.m.

1 stop7h 00m

C$ 423

OttawaPortland

YOW - PDX

YOWPDX

Ottawa

Tue 28/7

6:55 a.m.-1:50 p.m.

2 stops9h 55m

Portland

Thu 6/8

2:30 p.m.-12:40 a.m.

1 stop7h 10m

C$ 430

OttawaPortland

YOW - PDX

YOWPDX

Ottawa

Mon 27/7

6:15 p.m.-1:50 p.m.

2 stops22h 35m

Portland

Thu 6/8

2:30 p.m.-12:40 a.m.

1 stop7h 10m

C$ 432

OttawaSeattle

YOW - SEA

YOWSEA

Ottawa

Sat 1/8

1:20 p.m.-6:45 p.m.

1 stop8h 25m

Seattle/Tacoma Intl

Mon 31/8

10:30 a.m.-12:20 a.m.

2 stops10h 50m

C$ 435

OttawaSeattle

YOW - SEA

YOWSEA

Ottawa

Fri 25/9

6:55 a.m.-6:45 p.m.

2 stops14h 50m

Seattle/Tacoma Intl

Mon 28/9

7:35 p.m.-5:35 a.m.

1 stop7h 00m

C$ 439

OttawaSeattle

YOW - SEA

YOWSEA

Ottawa

Wed 10/6

1:20 p.m.-6:45 p.m.

1 stop8h 25m

Seattle/Tacoma Intl

Fri 12/6

10:30 a.m.-12:20 a.m.

2 stops10h 50m

C$ 446

OttawaSeattle

YOW - SEA

YOWSEA

Ottawa

Fri 25/9

6:55 a.m.-6:45 p.m.

2 stops14h 50m

Seattle/Tacoma Intl

Mon 28/9

10:30 a.m.-12:20 a.m.

2 stops10h 50m

C$ 449

OttawaPortland

YOW - PDX

YOWPDX

Ottawa

Mon 27/7

7:20 a.m.-1:50 p.m.

1 stop9h 30m

Portland

Tue 28/7

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

2 stops19h 00m

C$ 450

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?

In general, January is the cheapest month to fly from Ottawa to State of Washington. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around C$ 86. If you’re not able to fly to State of Washington in January, then February is your next best option. Flight prices from Ottawa to State of Washington during February average around C$ 195.

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 C$ 569 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 C$ 476 on momondo.

Can stopping save me money on Ottawa to State of Washington flights?

You could potentially save up to 57% on your flight if you consider stops on a Ottawa to State of Washington flight.

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 00m
Direct flights	None

The fastest flight from Ottawa to State of Washington takes 8h 00m

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?
The number of operators available for flights from Ottawa Airport to Washington is 3 as of May 2026.
How old do you have to be to fly from Ottawa Airport to Washington?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Ottawa Airport to Washington.
What documentation or ID do you need to fly to Washington?
The travel and health documents you'll need for your trip to Washington may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Washington. It is always advisable to seek 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 C$ 248	Free Cancellation	Rating 7.4 9,693 reviews	Search United Airlines flights
WestJet	PriceFrom C$ 342	Free Cancellation	Rating 7.2 3,332 reviews	Search WestJet flights
Air Canada	PriceFrom C$ 363	Free Cancellation	Rating 7.1 11,003 reviews	Search Air Canada flights

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Washington from Ottawa.

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

Yes. All flights to Washington from Ottawa on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

Once you have performed a search for Ottawa to Washington flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

Of course. momondo tracks the price of Ottawa to Washington flights. All you need is a valid email address and we will do the rest; it is that quick and easy.