Find Cheap Flights from Ottawa to Seattle/Tacoma Intl (YOW - SEA)

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Good to Know

Low Season:
September
Best time to beat the crowds
2%
expected price decrease
High Season:
July
Most popular time to fly
8%
expected price increase
Average Price:
$471
(avg. price over the last 2 weeks)
Good Deal:
$366
or less (round trip)

When to Book Flights from Ottawa to Seattle/Tacoma Intl

Average price per month
Flight prices as travel date approaches
-1 day
-2 days

Top tips for Finding a Cheap Flight

Looking for a cheap flight? 25% of our users found flights on this route for $365 or less.
The cheapest flight from Ottawa to Seattle/Tacoma Intl was found 48 days before departure, on average.
Book at least 5 weeks before departure in order to get a below-average price.
High season is considered to be June, July and August. The cheapest month to fly is September.
Morning departure is around 11% cheaper than an evening flight, on average*.
*Average of the lowest prices shown in KAYAK’s search results for departures within the next 30 days

FAQs for Booking Ottawa to Seattle/Tacoma Intl Flights

How long does a flight from Ottawa to Seattle/Tacoma Intl take?
An average nonstop flight takes 8h 34m, covering a distance of 2194 miles.
Which airlines provide the cheapest flights from Ottawa to Seattle/Tacoma Intl?
In the past 3 days, the cheapest round-trip tickets were found on Multiple Airlines ($314) and Delta ($362)
Do I need a passport to fly between Ottawa and Seattle/Tacoma Intl?
Yes.
What’s the cheapest day of the week to fly Ottawa to Seattle/Tacoma Intl?
For Ottawa to Seattle/Tacoma Intl, Monday is the cheapest day to fly on average and Wednesday is the most expensive. Flying from Seattle/Tacoma Intl back to Ottawa, the best deals are generally found on Monday, with Saturday being the most expensive.

Book cheap flights from Ottawa to Seattle/Tacoma Intl (round-trip)

Airports
Origin
Ottawa
$314
only
$314
Destination
Seattle
$314
only
$314
Mon, Apr 23
YOW
SEA
9h 05m
Wed, May 9
SEA
YOW
11h 13m
Trip: 17 days
Overall 0.0 Poor
Based on 0 reviews
Wed, Mar 21
YOW
SEA
12h 25m
Tue, Apr 10
SEA
YOW
11h 08m
Trip: 21 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 16027 reviews
Overall
8.0
Boarding
8.1
Comfort
7.8
Crew
8.4
Entertainment
7.5
Food
7.4
MSP
CUN
Mediocre 2.0

nothing

They lost my luggage.

BOS
BNA
Excellent 8.0

Service vey Good. Nice choices. Comfort seating very nice

WiFi awful. Useless.

ATL
DTW
Excellent 10.0

Pls see above

ATL
MEX
Excellent 10.0

Flight was on time, crew was friendly, plane was clean, and boarding was painless and efficient. Food was served which was a huge plus. I appreciate having a choice of almonds for a snack.

BOS
ATL
Okay 4.0

Comfort Plus allowed us to board early, useful USB ports.

Tue, Apr 24
YOW
SEA
9h 05m
Wed, May 9
SEA
YOW
11h 13m
Trip: 16 days
Overall 0.0 Poor
Based on 0 reviews
Tue, Apr 24
YOW
SEA
8h 34m
Fri, May 11
SEA
YOW
7h 37m
Trip: 18 days
Overall 0.0 Poor
Based on 0 reviews
Thu, Apr 26
YOW
SEA
12h 19m
Wed, May 9
SEA
YOW
9h 00m
Trip: 14 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 16027 reviews
Overall
8.0
Boarding
8.1
Comfort
7.8
Crew
8.4
Entertainment
7.5
Food
7.4
ATL
JNB
Okay 4.0

Aircraft seemed shabby despite refresh of Comfort Plus, food was really mediocre. Steer clear of the Asian Veg option.

SJC
SLC
Excellent 8.8

Good clean aircraft. Fairly comfortable seats. Even had a power outlet in my row. Not too bad for an aircraft from the late 70s.

for some reason, i had to pay to gate check a bag. It didnt seem like anyone else did while boarding my flight.

BOS
JFK
Excellent 9.3

The volume controls on the tv we’re pretty poor. Was either too loud or too soft with only 5-6 volume settings.

BOS
ATL
Okay 4.0

Comfort Plus allowed us to board early, useful USB ports.

MSP
CUN
Mediocre 2.0

nothing

They lost my luggage.

Sat, Apr 21
YOW
SEA
16h 42m
Wed, May 9
SEA
YOW
11h 13m
Trip: 19 days
Overall 0.0 Poor
Based on 0 reviews
Sat, Apr 21
YOW
SEA
13h 43m
Thu, May 10
SEA
YOW
11h 10m
Trip: 20 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 16027 reviews
Overall
8.0
Boarding
8.1
Comfort
7.8
Crew
8.4
Entertainment
7.5
Food
7.4
BOS
JFK
Excellent 9.3

The volume controls on the tv we’re pretty poor. Was either too loud or too soft with only 5-6 volume settings.

ATL
MEX
Excellent 10.0

Flight was on time, crew was friendly, plane was clean, and boarding was painless and efficient. Food was served which was a huge plus. I appreciate having a choice of almonds for a snack.

BOS
BNA
Excellent 8.0

Service vey Good. Nice choices. Comfort seating very nice

WiFi awful. Useless.

ATL
DTW
Excellent 10.0

Pls see above

ECP
ATL
Excellent 9.6

We have been on 6 flights over the last 8 days, all with Delta and we have already started telling people how wonderful the service was. Sherry on this last flight was amazing, working so hard all by herself as our flight attendant. We were very impressed. And the pilots all came out to say goodbye and thank you. All very nice...esp for me who needed some wheelchair assistance. We will certainly fly with you again in the future.

Smaller plane but ok for short flight

Sun, Apr 22
YOW
SEA
16h 42m
Wed, May 9
SEA
YOW
11h 13m
Trip: 18 days
Overall 0.0 Poor
Based on 0 reviews
Mon, Apr 23
YOW
SEA
8h 34m
Thu, May 10
SEA
YOW
7h 00m
Trip: 18 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 16027 reviews
Overall
8.0
Boarding
8.1
Comfort
7.8
Crew
8.4
Entertainment
7.5
Food
7.4
ATL
MEX
Excellent 10.0

Flight was on time, crew was friendly, plane was clean, and boarding was painless and efficient. Food was served which was a huge plus. I appreciate having a choice of almonds for a snack.

DTW
MEX
Excellent 8.3

Even though I was disappointed by not being able to get the boarding passes from Delta for Aeromexico’s connecting flight to Bogota, I had an agent greet me after customs in Mexico to issue the boarding pass so I could use the transfer flight line. Excellent service throughout the entire trip.

Confusion over my boarding pass at the Delta terminal in Detroit.

ECP
ATL
Excellent 9.6

We have been on 6 flights over the last 8 days, all with Delta and we have already started telling people how wonderful the service was. Sherry on this last flight was amazing, working so hard all by herself as our flight attendant. We were very impressed. And the pilots all came out to say goodbye and thank you. All very nice...esp for me who needed some wheelchair assistance. We will certainly fly with you again in the future.

Smaller plane but ok for short flight

BOS
ATL
Okay 4.0

Comfort Plus allowed us to board early, useful USB ports.

DTW
YOW
Excellent 9.3

Please see above. Sherry was amazing

Plane was small and older but it was a short flight

Fri, Apr 27
YOW
SEA
18h 45m
Tue, May 8
SEA
YOW
8h 30m
Trip: 12 days
Overall 0.0 Poor
Based on 0 reviews
Tue, Apr 24
YOW
SEA
8h 34m
Thu, May 10
SEA
YOW
11h 10m
Trip: 17 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 16027 reviews
Overall
8.0
Boarding
8.1
Comfort
7.8
Crew
8.4
Entertainment
7.5
Food
7.4
DTW
MEX
Excellent 8.3

Even though I was disappointed by not being able to get the boarding passes from Delta for Aeromexico’s connecting flight to Bogota, I had an agent greet me after customs in Mexico to issue the boarding pass so I could use the transfer flight line. Excellent service throughout the entire trip.

Confusion over my boarding pass at the Delta terminal in Detroit.

ATL
MEX
Excellent 10.0

Flight was on time, crew was friendly, plane was clean, and boarding was painless and efficient. Food was served which was a huge plus. I appreciate having a choice of almonds for a snack.

ATL
JNB
Okay 4.0

Aircraft seemed shabby despite refresh of Comfort Plus, food was really mediocre. Steer clear of the Asian Veg option.

BOS
BNA
Excellent 8.0

Service vey Good. Nice choices. Comfort seating very nice

WiFi awful. Useless.

DTW
YOW
Excellent 9.3

Please see above. Sherry was amazing

Plane was small and older but it was a short flight

Tue, Jun 5
YOW
SEA
16h 12m
Mon, Jun 18
SEA
YOW
12h 02m
Trip: 14 days
Overall 0.0 Poor
Based on 0 reviews
Wed, Apr 25
YOW
SEA
8h 34m
Thu, May 10
SEA
YOW
11h 10m
Trip: 16 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 16027 reviews
Overall
8.0
Boarding
8.1
Comfort
7.8
Crew
8.4
Entertainment
7.5
Food
7.4
SJC
SLC
Excellent 8.8

Good clean aircraft. Fairly comfortable seats. Even had a power outlet in my row. Not too bad for an aircraft from the late 70s.

for some reason, i had to pay to gate check a bag. It didnt seem like anyone else did while boarding my flight.

ECP
ATL
Excellent 9.6

We have been on 6 flights over the last 8 days, all with Delta and we have already started telling people how wonderful the service was. Sherry on this last flight was amazing, working so hard all by herself as our flight attendant. We were very impressed. And the pilots all came out to say goodbye and thank you. All very nice...esp for me who needed some wheelchair assistance. We will certainly fly with you again in the future.

Smaller plane but ok for short flight

ATL
DTW
Excellent 10.0

Pls see above

MSP
CUN
Mediocre 2.0

nothing

They lost my luggage.

ATL
JNB
Okay 4.0

Aircraft seemed shabby despite refresh of Comfort Plus, food was really mediocre. Steer clear of the Asian Veg option.

Sat, Jun 9
YOW
SEA
15h 29m
Mon, Jun 18
SEA
YOW
12h 02m
Trip: 10 days
Overall 0.0 Poor
Based on 0 reviews
Fri, Apr 27
YOW
SEA
8h 34m
Thu, May 10
SEA
YOW
11h 10m
Trip: 14 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 16027 reviews
Overall
8.0
Boarding
8.1
Comfort
7.8
Crew
8.4
Entertainment
7.5
Food
7.4
BOS
ATL
Okay 4.0

Comfort Plus allowed us to board early, useful USB ports.

ATL
JNB
Okay 4.0

Aircraft seemed shabby despite refresh of Comfort Plus, food was really mediocre. Steer clear of the Asian Veg option.

SJC
SLC
Excellent 8.8

Good clean aircraft. Fairly comfortable seats. Even had a power outlet in my row. Not too bad for an aircraft from the late 70s.

for some reason, i had to pay to gate check a bag. It didnt seem like anyone else did while boarding my flight.

DTW
MEX
Excellent 8.3

Even though I was disappointed by not being able to get the boarding passes from Delta for Aeromexico’s connecting flight to Bogota, I had an agent greet me after customs in Mexico to issue the boarding pass so I could use the transfer flight line. Excellent service throughout the entire trip.

Confusion over my boarding pass at the Delta terminal in Detroit.

GDL
ATL
Excellent 9.0

Staff was great!

No TV for movies.

Wed, Apr 25
YOW
SEA
16h 04m
Fri, May 11
SEA
YOW
7h 37m
Trip: 17 days
Overall 0.0 Poor
Based on 0 reviews
Mon, Jun 4
YOW
SEA
10h 36m
Thu, Jun 14
SEA
YOW
9h 00m
Trip: 11 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 16027 reviews
Overall
8.0
Boarding
8.1
Comfort
7.8
Crew
8.4
Entertainment
7.5
Food
7.4
BOS
JFK
Excellent 9.3

The volume controls on the tv we’re pretty poor. Was either too loud or too soft with only 5-6 volume settings.

ECP
ATL
Excellent 9.6

We have been on 6 flights over the last 8 days, all with Delta and we have already started telling people how wonderful the service was. Sherry on this last flight was amazing, working so hard all by herself as our flight attendant. We were very impressed. And the pilots all came out to say goodbye and thank you. All very nice...esp for me who needed some wheelchair assistance. We will certainly fly with you again in the future.

Smaller plane but ok for short flight

GDL
ATL
Excellent 9.0

Staff was great!

No TV for movies.

ATL
JNB
Okay 4.0

Aircraft seemed shabby despite refresh of Comfort Plus, food was really mediocre. Steer clear of the Asian Veg option.

ATL
MEX
Excellent 10.0

Flight was on time, crew was friendly, plane was clean, and boarding was painless and efficient. Food was served which was a huge plus. I appreciate having a choice of almonds for a snack.

Mon, Apr 23
YOW
SEA
9h 05m
Mon, May 7
SEA
YOW
7h 01m
Trip: 15 days
Overall 0.0 Poor
Based on 0 reviews
Wed, Jun 6
YOW
SEA
12h 19m
Thu, Jun 14
SEA
YOW
9h 00m
Trip: 9 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 16027 reviews
Overall
8.0
Boarding
8.1
Comfort
7.8
Crew
8.4
Entertainment
7.5
Food
7.4
BOS
JFK
Excellent 9.3

The volume controls on the tv we’re pretty poor. Was either too loud or too soft with only 5-6 volume settings.

GDL
ATL
Excellent 9.0

Staff was great!

No TV for movies.

DTW
MEX
Excellent 8.3

Even though I was disappointed by not being able to get the boarding passes from Delta for Aeromexico’s connecting flight to Bogota, I had an agent greet me after customs in Mexico to issue the boarding pass so I could use the transfer flight line. Excellent service throughout the entire trip.

Confusion over my boarding pass at the Delta terminal in Detroit.

BOS
BNA
Excellent 8.0

Service vey Good. Nice choices. Comfort seating very nice

WiFi awful. Useless.

DTW
YOW
Excellent 9.3

Please see above. Sherry was amazing

Plane was small and older but it was a short flight

Tue, Apr 24
YOW
SEA
9h 05m
Mon, May 7
SEA
YOW
7h 01m
Trip: 14 days
Overall 0.0 Poor
Based on 0 reviews
Show more results

Ottawa to Seattle/Tacoma Intl Flight Information

Flights Arrive in Seattle/Tacoma Intl
Flights Depart from Ottawa
Flight Price $314
Distance 2194 miles
Airlines Delta
*
Prices are per person and are for e–tickets and include all taxes & fees in USD.

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Why aren’t prices accurate 100% of the time?
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please send us an and someone from our team will get back to you promptly.

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The fares displayed include all taxes and fees for economy class travel and were found by the provider in the last 72 hours. Seats are limited and may not be available on all flights and days. Fares are subject to change and may not be available on all flights or dates of travel. Some carriers charge additional fees for extra checked bags. Please check the carriers' sites.