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Cheap flights from Ottawa to Seattle from C$ 321

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 25/5. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
YOW — SEA
26 May — 2 Jun1
1 adult
Sun 26/5
Sun 2/6

The best prices from Ottawa to Seattle/Tacoma Intl are usually found in January or May, booked 12 days in advance, depart on a Wednesday or Tuesday and return on a Tuesday

Cheap flight deals from Ottawa to Seattle

Discover tips and strategies to find the most affordable flight options for your journey from Ottawa (YOW) to Seattle (SEA). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 21 May 2024.

Popular in

February

Cheapest in

January

Round-trip from

C$ 412

One-way from

C$ 364
High demand for flights, 23% potential price rise
Best time to find cheap flights, 19% potential price drop
From Ottawa to Seattle/Tacoma Intl
One-way flight from Ottawa to Seattle/Tacoma Intl

What is the cheapest day to fly round-trip from Ottawa to Seattle?

Travellers have found that booking a Tuesday departure is the best way to save up to 23% on the cost of booking your flights compared to booking on days of the week where this route is of high demand.

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

Users have found that booking a flight from Ottawa to Seattle at least 13 days early can save you up to 176% on average compared to booking a flight this week. If booking 13 days before your flight isn’t an option for you, users have found flights from Ottawa to Seattle for as little as C$ 329 when booking for a departure date within the next two weeks. You can also check prices now. Some users have found airline tickets as low as C$ 919 for flights departing within the next 3 days.

What is the cheapest month to fly from Ottawa to Seattle?

Due to multiple factors, expect to potentially pay more when booking in February. For low rates, January can be a great choice for travel to Seattle. Flights to Seattle from Ottawa in January are about C$ 739 on average during January, but can be found for as low as C$ 350.

When is the cheapest time to fly from Ottawa to Seattle (YOW - SEA)?

It’s typically best to fly out from Ottawa to Seattle in the evening. Doing so could potentially save you 30% on the flight price compared to flying at noon, which is usually more expensive.

Cheap WestJet flights from Ottawa to Seattle

Explore cheap flight options specifically provided by WestJet for the route between Ottawa and Seattle. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 413,903 searches. Data last updated 21 May 2024.
Take a look at some of the lowest-priced WestJet flights heading from Ottawa to Seattle. Come back soon if you're not finding the exact deal you're looking for.
Tue 9/76:07 a.m.YOW - SEA
1 stop9h 49mWestJet
Fri 19/71:50 p.m.SEA - YOW
2 stops21h 41mWestJet
Deal found 20/5C$ 596
Tue 25/63:25 p.m.YOW - SEA
2 stops31h 56mWestJet
Fri 5/77:00 a.m.SEA - YOW
1 stop9h 14mWestJet
Deal found 20/5C$ 600
Tue 9/76:07 a.m.YOW - SEA
1 stop9h 49mWestJet
Thu 18/73:30 p.m.SEA - YOW
2 stops12h 22mWestJet
Deal found 20/5C$ 618
Tue 25/63:25 p.m.YOW - SEA
2 stops31h 56mWestJet
Fri 5/71:50 p.m.SEA - YOW
2 stops21h 41mWestJet
Deal found 20/5C$ 629
Tue 9/73:25 p.m.YOW - SEA
2 stops24h 31mWestJet
Fri 19/71:50 p.m.SEA - YOW
2 stops21h 41mWestJet
Deal found 20/5C$ 643
Wed 5/63:25 p.m.YOW - SEA
2 stops24h 31mWestJet
Tue 11/67:00 a.m.SEA - YOW
2 stops28h 38mWestJet
Deal found 20/5C$ 644
Thu 6/63:25 p.m.YOW - SEA
2 stops31h 55mWestJet
Mon 10/63:30 p.m.SEA - YOW
1 stop20h 08mWestJet
Deal found 20/5C$ 649
Thu 6/63:25 p.m.YOW - SEA
2 stops31h 55mWestJet
Mon 10/63:30 p.m.SEA - YOW
1 stop20h 08mWestJet
Deal found 20/5C$ 652
Tue 9/76:07 a.m.YOW - SEA
1 stop9h 49mWestJet
Sat 20/76:15 p.m.SEA - YOW
2 stops17h 16mWestJet
Deal found 20/5C$ 671

Cheap United Airlines flights from Ottawa to Seattle

Explore cheap flight options specifically provided by United Airlines for the route between Ottawa and Seattle. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 413,903 searches. Data last updated 21 May 2024.
Take a gander at the lowest prices we've found on United Airlines flights from Ottawa to Seattle. Check back soon if you're not seeing flights that suit your needs.
Mon 3/66:00 p.m.YOW - SEA
2 stops17h 02mUnited Airlines
Mon 10/611:59 p.m.SEA - YOW
1 stop14h 05mUnited Airlines
Deal found 20/5C$ 602
Thu 6/67:30 p.m.YOW - SEA
1 stop8h 29mUnited Airlines
Mon 10/611:59 p.m.SEA - YOW
1 stop14h 05mUnited Airlines
Deal found 20/5C$ 613
Mon 3/66:00 p.m.YOW - SEA
2 stops17h 02mUnited Airlines
Mon 10/611:59 p.m.SEA - YOW
1 stop14h 05mUnited Airlines
Deal found 20/5C$ 625
Tue 9/75:30 p.m.YOW - SEA
2 stops17h 32mUnited Airlines
Thu 18/712:30 a.m.SEA - YOW
1 stop13h 34mUnited Airlines
Deal found 20/5C$ 771
Tue 25/66:38 a.m.YOW - SEA
1 stop12h 30mUnited Airlines
Thu 4/712:30 a.m.SEA - YOW
1 stop13h 34mUnited Airlines
Deal found 20/5C$ 794
Fri 28/65:30 p.m.YOW - SEA
1 stop7h 56mUnited Airlines
Sun 30/612:30 a.m.SEA - YOW
1 stop13h 34mUnited Airlines
Deal found 20/5C$ 796
Tue 25/66:00 p.m.YOW - SEA
2 stops18h 59mUnited Airlines
Thu 4/712:30 a.m.SEA - YOW
1 stop13h 34mUnited Airlines
Deal found 20/5C$ 841

Cheap Ottawa to Seattle flights in May & June 2024

Find cheap flight options from Ottawa to Seattle specifically for the months of May and June 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 413,903 searches. Prices were last updated on 21 May 2024.
Scroll through some of the best deals on flights from Ottawa to Seattle in 2024. For more flight deals, be sure to check back very soon.
Tue 25/67:20 a.m.YOW - SEA
1 stop10h 14mAir Canada
Fri 5/75:50 a.m.SEA - YOW
1 stop7h 51mAir Canada
Deal found 20/5C$ 576
Tue 25/63:25 p.m.YOW - SEA
2 stops31h 56mWestJet
Fri 5/77:00 a.m.SEA - YOW
1 stop9h 14mWestJet
Deal found 20/5C$ 600
Mon 3/66:00 p.m.YOW - SEA
2 stops17h 02mUnited Airlines
Mon 10/611:59 p.m.SEA - YOW
1 stop14h 05mUnited Airlines
Deal found 20/5C$ 602
Fri 7/65:30 a.m.YOW - SEA
1 stop8h 13mAir Canada
Sun 9/65:55 a.m.SEA - YOW
1 stop7h 46mAir Canada
Deal found 20/5C$ 603
Wed 5/67:30 p.m.YOW - SEA
1 stop8h 29mMultiple Airlines
Tue 11/65:55 a.m.SEA - YOW
1 stop7h 46mMultiple Airlines
Deal found 20/5C$ 606
Mon 3/65:30 a.m.YOW - SEA
1 stop8h 13mAir Canada
Mon 10/611:10 p.m.SEA - YOW
1 stop8h 51mAir Canada
Deal found 20/5C$ 607
Sun 9/65:30 a.m.YOW - SEA
1 stop8h 13mAir Canada
Sun 16/611:10 p.m.SEA - YOW
1 stop8h 51mAir Canada
Deal found 20/5C$ 610
Thu 6/67:30 p.m.YOW - SEA
1 stop8h 29mUnited Airlines
Mon 10/611:59 p.m.SEA - YOW
1 stop14h 05mUnited Airlines
Deal found 20/5C$ 613
Thu 6/65:26 p.m.YOW - SEA
1 stop9h 32mMultiple Airlines
Mon 10/611:10 p.m.SEA - YOW
1 stop8h 51mMultiple Airlines
Deal found 20/5C$ 614

Ottawa to Seattle 2024 flight deals

Discover exclusive flight deals for travel between Ottawa and Seattle in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 413,903 searches. Data last updated 21 May 2024.
Scroll through some of the best deals on flights from Ottawa to Seattle in 2024. For more flight deals, be sure to check back very soon.
Tue 9/76:07 a.m.YOW - SEA
1 stop9h 49mWestJet
Fri 19/71:50 p.m.SEA - YOW
1 stop7h 47mWestJet
Deal found 20/5C$ 539
Tue 25/67:20 a.m.YOW - SEA
1 stop10h 14mAir Canada
Fri 5/75:50 a.m.SEA - YOW
1 stop7h 51mAir Canada
Deal found 20/5C$ 576
Thu 29/86:07 a.m.YOW - SEA
1 stop14h 14mWestJet
Sun 1/91:50 p.m.SEA - YOW
1 stop7h 47mWestJet
Deal found 20/5C$ 591
Tue 9/76:07 a.m.YOW - SEA
1 stop9h 49mWestJet
Fri 19/71:50 p.m.SEA - YOW
2 stops21h 41mWestJet
Deal found 20/5C$ 596
Thu 29/83:25 p.m.YOW - SEA
2 stops28h 56mWestJet
Sun 1/97:00 a.m.SEA - YOW
1 stop9h 14mWestJet
Deal found 20/5C$ 598
Tue 25/63:25 p.m.YOW - SEA
2 stops31h 56mWestJet
Fri 5/77:00 a.m.SEA - YOW
1 stop9h 14mWestJet
Deal found 20/5C$ 600
Mon 3/66:00 p.m.YOW - SEA
2 stops17h 02mUnited Airlines
Mon 10/611:59 p.m.SEA - YOW
1 stop14h 05mUnited Airlines
Deal found 20/5C$ 602
Fri 7/65:30 a.m.YOW - SEA
1 stop8h 13mAir Canada
Sun 9/65:55 a.m.SEA - YOW
1 stop7h 46mAir Canada
Deal found 20/5C$ 603
Wed 5/67:30 p.m.YOW - SEA
1 stop8h 29mMultiple Airlines
Tue 11/65:55 a.m.SEA - YOW
1 stop7h 46mMultiple Airlines
Deal found 20/5C$ 606

One-way flights to Seattle from Ottawa

Search for one-way flight options from Ottawa to Seattle. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 413,903 searches. Data last updated 21 May 2024.
Users travelling one-way from Ottawa to Seattle can select one of these great deals. Users can also find round-trip Ottawa to Seattle flights by using the search form above.
Sat 25/56:00 a.m.YOW - SEA
1 stop9h 56mWestJet
Deal found 20/5C$ 321
Fri 21/66:07 a.m.YOW - SEA
1 stop17h 14mWestJet
Deal found 19/5C$ 328
Fri 24/53:25 p.m.YOW - SEA
2 stops24h 31mWestJet
Deal found 20/5C$ 331
Wed 5/62:49 p.m.YOW - SEA
1 stop8h 21mUnited Airlines
Deal found 20/5C$ 339
Wed 5/66:00 p.m.YOW - SEA
2 stops17h 02mUnited Airlines
Deal found 20/5C$ 346
Mon 17/63:25 p.m.YOW - SEA
2 stops24h 31mWestJet
Deal found 21/5C$ 353
Tue 18/69:35 p.m.YOW - SEA
2 stops25h 46mWestJet
Deal found 21/5C$ 357
Tue 18/69:35 p.m.YOW - SEA
3 stops25h 46mWestJet
Deal found 21/5C$ 364
Wed 5/67:20 a.m.YOW - SEA
3 stops28h 12mMultiple Airlines
Deal found 20/5C$ 372

Find flights from Ottawa to Seattle within your budget

Customize your flight search to find flights from Ottawa to Seattle 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 413,903 searches. Data last updated 21 May 2024.

Fly from

Any airport

Fly to

Any airport

Budget

C$ 596 - C$ 614

Route

Depart

Return

Price

OttawaSeattle/Tacoma Intl

YOW - SEA

YOWSEA

Ottawa

Tue 9/7

1 stop9h 49m

Seattle/Tacoma Intl

Fri 19/7

2 stops21h 41m

C$ 596

OttawaSeattle/Tacoma Intl

YOW - SEA

YOWSEA

Ottawa

Tue 25/6

2 stops31h 56m

Seattle/Tacoma Intl

Fri 5/7

1 stop9h 14m

C$ 600

OttawaSeattle/Tacoma Intl

YOW - SEA

YOWSEA

Ottawa

Mon 3/6

2 stops17h 02m

Seattle/Tacoma Intl

Mon 10/6

1 stop14h 05m

C$ 602

OttawaSeattle/Tacoma Intl

YOW - SEA

YOWSEA

Ottawa

Fri 7/6

1 stop8h 13m

Seattle/Tacoma Intl

Sun 9/6

1 stop7h 46m

C$ 603

OttawaSeattle/Tacoma Intl

YOW - SEA

YOWSEA

Ottawa

Wed 5/6

1 stop8h 29m

Seattle/Tacoma Intl

Tue 11/6

1 stop7h 46m

C$ 606

OttawaSeattle/Tacoma Intl

YOW - SEA

YOWSEA

Ottawa

Mon 3/6

1 stop8h 13m

Seattle/Tacoma Intl

Mon 10/6

1 stop8h 51m

C$ 607

OttawaSeattle/Tacoma Intl

YOW - SEA

YOWSEA

Ottawa

Sun 9/6

1 stop8h 13m

Seattle/Tacoma Intl

Sun 16/6

1 stop8h 51m

C$ 610

OttawaSeattle/Tacoma Intl

YOW - SEA

YOWSEA

Ottawa

Thu 6/6

1 stop8h 29m

Seattle/Tacoma Intl

Mon 10/6

1 stop14h 05m

C$ 613

OttawaSeattle/Tacoma Intl

YOW - SEA

YOWSEA

Ottawa

Thu 6/6

1 stop9h 32m

Seattle/Tacoma Intl

Mon 10/6

1 stop8h 51m

C$ 614

Flights are sorted by cheapest first

Deals found on 20/5

When is the best time to book a flight from Ottawa to Seattle?

Use this chart to determine the optimal time to book a round-trip flight from Ottawa to Seattle. Price data was last updated on 10 May 2024.
Booking 12 days in advance of your planned departure date is, on average, the best time to get cheap flights from Ottawa to Seattle. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
Search Deals

When is the cheapest time to fly from Ottawa to Seattle?

Use this chart to determine the cheapest time to fly round-trip from Ottawa to Seattle. Price data was last updated on 19 May 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their Ottawa to Seattle flight should consider departing on Monday evenings when fares are most often at their lowest. Sunday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.
Search Deals

Best time to book a flight from Ottawa to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle 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.

Temperature and rainfall in Seattle by month

Plan your trip to Seattle by taking into account the average temperature and rainfall totals by month.

SEA

Temperature

5 - 19 °C

Reviews of airlines servicing Seattle

Get insights into the airlines that provide service to Seattle. 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 Seattle. Reviews last updated 21 May 2024.
Read reviews from past customers who have flown WestJet, United Airlines and Air Canada from Ottawa to Seattle. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
7.5
Good
2,899 reviews

Overall

7.5

Crew

8.2

Food

6.5

Boarding

7.7

Entertainment

6.5

Comfort

7.3

Reviews

1 / 10

It’s a discount flight so you have to expect to be crammed in. Then there is the food strike at a supplier we were all warned of and they were good with snacks. The attendants were great. I’ll fly them a hand I recommend them, for what they are.

7.5
Good
2,899 reviews
7.5
Good
2,899 reviews

Overall

7.5

Crew

8.2

Food

6.5

Boarding

7.7

Entertainment

6.5

Comfort

7.3

Reviews

1 / 10

It’s a discount flight so you have to expect to be crammed in. Then there is the food strike at a supplier we were all warned of and they were good with snacks. The attendants were great. I’ll fly them a hand I recommend them, for what they are.

7.4
Good
10,884 reviews
7.5
Good
2,899 reviews

Overall

7.5

Crew

8.2

Food

6.5

Boarding

7.7

Entertainment

6.5

Comfort

7.3

Reviews

1 / 10

It’s a discount flight so you have to expect to be crammed in. Then there is the food strike at a supplier we were all warned of and they were good with snacks. The attendants were great. I’ll fly them a hand I recommend them, for what they are.

7.0
Good
6,951 reviews
7.5
Good
2,899 reviews

Overall

7.5

Crew

8.2

Food

6.5

Boarding

7.7

Entertainment

6.5

Comfort

7.3

Reviews

1 / 10

It’s a discount flight so you have to expect to be crammed in. Then there is the food strike at a supplier we were all warned of and they were good with snacks. The attendants were great. I’ll fly them a hand I recommend them, for what they are.

Related info for your journey

Find useful and relevant information for your journey from Ottawa to Seattle. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • Can I find flights from Ottawa to Seattle for under C$ 600 on Cheapflights?

    Yes, there are multiple flights from Ottawa to Seattle for under C$ 600. The cheapest flight booked recently is on WestJet for just C$ 596, but on average you can expect to pay C$ 625.

  • What are the cheapest airlines flying from Ottawa to Seattle round-trip?

    According to our current data, WestJet (C$ 596), United Airlines (C$ 602), and Air Canada (C$ 603) offers the cheapest pricing from Ottawa to Seattle. You may be able to fly from Ottawa to Seattle for 19% less than the average price by searching for these airlines.

  • What are the most popular airlines that fly from Ottawa to Seattle?

  • What does YOW to SEA mean?

    YOW and SEA are unique codes to identify airports used in the aviation industry. They are defined by IATA (International Air Transport Association) and are commonly called IATA codes. YOW to SEA refers to a flight route from Ottawa Airport to Seattle/Tacoma Intl Airport.

  • Can I find deals for flights from Ottawa to Seattle that include extra baggage allowance?

    The amount of baggage you can bring on your Ottawa to Seattle flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from Ottawa to Seattle with specific airlines?

    Yes, Cheapflights allows you to browse and filter Ottawa to Seattle flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

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

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

  • How can I find direct flights from Ottawa to Seattle?

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

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

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

  • Can I find deals for flights from Ottawa to Seattle that allow pets onboard?

    Many airlines flying from Ottawa to Seattle offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from Ottawa to Seattle?

    Yes, you can often find last-minute deals on Ottawa to Seattle flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the Ottawa to Seattle flight deals updated?

    The Ottawa to Seattle flight deals you see on this page were last updated on 20/5.

  • When is the best time to book a flight from Ottawa to Seattle?

    Currently, October is the cheapest month in which you can book a flight from Ottawa to Seattle (average of C$ 302). Flying from Ottawa to Seattle in March is currently the most expensive (average of C$ 420). 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 Seattle

Discover the top 3 airlines that operate flights from Ottawa to Seattle. 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 413,903 searches. Data last updated 21 May 2024.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapestC$ 476AverageC$ 789FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
WestJetCheapestC$ 515AverageC$ 683FlexibilityNo cancel feeOn-time60%
Search WestJet flights
Air CanadaCheapestC$ 528AverageC$ 691FlexibilityNo cancel feeOn-time67%
Search Air Canada flights

Search flights from Ottawa to Seattle by cabin class

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

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 Seattle?

Cheapflights makes it easy to find Ottawa to Seattle flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

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

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Seattle from Ottawa.

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

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

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

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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