Nonstop flights from Washington to Ottawa

2 airlines fly from 2 Washington airports (IAD and DCA) to Ottawa (YOW), with up to 5 flights a day.

IADYOW

Routes

2 airport pairs

When they leave

Washington time

8:15a10:10pFirst departure 8:15 AM, last 10:10 PM

One morning flight at 8:15 AM, then two in the afternoon, 12:35 PM to 12:40 PM, then two in the evening, 5:11 PM to 10:10 PM. Every flight runs daily.

Every flight

Earliest first

8:15 AM→9:56 AMIAD to YOWUnited AirlinesEmbraer 175Daily
12:35 PM→2:17 PMIAD to YOWUnited AirlinesCRJ 700Daily
12:40 PM→2:11 PMDCA to YOWAir CanadaUntil Dec 12, back Jan 12, 2027CRJ 900Daily
5:11 PM→6:55 PMIAD to YOWUnited AirlinesCRJ 700Daily
10:10 PM→11:54 PMIAD to YOWUnited AirlinesEmbraer 175Daily

Schedules last checked Sep 21, 2026. Times are local.

Flying from Washington to Ottawa

United Airlines flies most often, 4 times a day on the CRJ 700 and Embraer 175. Air Canada flies daily on the CRJ 900.

There are 5 flights every day of the week. The first arrival in Ottawa is at 9:56 AM and the last at 11:54 PM.

IAD to YOW is the busiest airport pair, with 28 flights a week, then DCA to YOW with 7.

On DCA to YOW, Air Canada flies it until Dec 12 and is back on Jan 12, 2027.

Flying back, Ottawa to Washington has 35 nonstop flights a week.

Return flights

Ottawa to WashingtonView

Find the cheapest day to fly from Washington to Ottawa.

Schedules as of Oct 9, 2026.