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How to get from Ottawa to Seattle

No nonstop flights. The fastest way is via Calgary: about 8h 38m including the connection. Other options: via Vancouver, Edmonton, Toronto and Montreal. Two tickets from $381.

Flights from Ottawa to Seattle

Pick a departure date to see flights and seller prices

We search agencies and airlines for your day: nonstop and connecting flights, baggage, departure and arrival times.

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Best fares from Ottawa to Seattle

Lowest one-way prices found by recent searches for the next 120 days; press a card to search that date

Cheapest one-way $228 1 December 2026, with a connection Cheapest month December 2026 tickets from $228

Where to connect

Options with one connection, fastest first

fastest, via Calgary
8h 38m
two tickets, via Calgary
$381
connection options
5
straight-line distance
2,189 mi (3,523 km)
fastest
Via Calgary
8h 38m
with the connection
Ottawa to Calgary flight 4h 30m
Connection of about 3h
Calgary to Seattle flight 1h 8m
two ticketsfrom $381
Via Vancouver
8h 40m
with the connection
Ottawa to Vancouver flight 5h 20m
Connection of about 3h
Vancouver to Seattle flight 20m
two ticketsfrom $391
Via Edmonton
8h 57m
with the connection
Ottawa to Edmonton flight 4h 58m
Connection of about 3h
Edmonton to Seattle flight 59m
Via Toronto
9h 39m
with the connection
Ottawa to Toronto flight 1h 10m
Connection of about 3h Arrival: Pearson International, Toronto City Centre. Departure to Seattle: Pearson International.
Toronto to Seattle flight 5h 29m
two ticketsfrom $411
Via Montreal
9h 45m
with the connection
Ottawa to Montreal flight 53m
Connection of about 3h
Montreal to Seattle flight 5h 52m
two ticketsfrom $413

One ticket or two

How the options are calculated and what to keep in mind at the connection

Flight times come from the nonstop schedule (estimated from the distance where there is no schedule), with 3h allowed for the connection. The price of an option is the sum of the lowest known fares for each leg; their dates may not match, so treat it as a guide. The search shows tickets for your dates, including connections on a single ticket.

When to visit Seattle

Weather by month

Best time to visit: May, June, July, August and September, +17° to +25° by day. In November it is +10° by day and +5° at night, with 17 rainy days.

Jan
+8° +2° 16 days
Feb
+8° +2° 14 days
Mar
+11° +4° 15 days
Apr
+13° +6° 14 days
May
+17° +9° 11 days
Jun
+21° +12° 7 days
Jul
+25° +15° 1 days
Aug
+25° +15° 6 days
Sep
+21° +13° 7 days
Oct
+15° +9° 14 days
Nov
+10° +5° 17 days
Dec
+8° +4° 20 days

Daytime and night temperatures in °C, rainy days. Months with the most comfortable weather are in green. Long-term averages.

Nearest nonstop flights

The closest you can get without a connection

Frequently asked questions

Is there a nonstop flight from Ottawa to Seattle?
There are no nonstop flights in the schedule. You will need a connection, the fastest is via Calgary.
What is the fastest way to fly from Ottawa to Seattle?
Via Calgary: 4h 30m to the connection, 1h 8m after it, about 8h 38m in total with 3h for the connection.
How much does a flight from Ottawa to Seattle with a connection cost?
Two nonstop tickets via Calgary from $381. This is the sum of the lowest known prices for each leg, and their dates may not match.
Which cities can you connect in between Ottawa and Seattle?
Calgary (8h 38m total), Vancouver (8h 40m total), Edmonton (8h 57m total), Toronto (9h 39m total) and Montreal (9h 45m total).
How far is Seattle from Ottawa?
2,189 mi (3,523 km) in a straight line between the cities.
How much time should I allow for the connection?
The options allow 3h. On a single ticket the carrier is responsible for the connection; on separate tickets you set the margin yourself, allowing time to collect and re-check your bags.