United States to Canada · 449 miles (723 km)

Dulles (IAD) to Ottawa (YOW) flights

One airline flies nonstop from Dulles (IAD) to Ottawa (YOW): United Airlines. The two airports are 449 miles (723 km) apart. United Airlines is in Star Alliance. There are also 7 ways to fly it with one stop, through New York, Toronto and Toronto and more.

See award prices Filter in Routes

Airlines flying nonstop from IAD to YOW

United AirlinesStar Alliance · bookable with 13 programsWho books it

Book IAD to YOW with points

Loyalty programs that can book at least one of the nonstop airlines, from the Award Booking Guide.

Air Canada AeroplanBooks United Airlines
Air New Zealand AirpointsBooks United Airlines
ANA Mileage ClubBooks United Airlines
Avianca LifeMilesBooks United Airlines
Emirates SkywardsBooks United Airlines
EVA Air Infinity MileageLandsBooks United Airlines
JetBlue TrueBlueBooks United Airlines
Lufthansa Miles & MoreBooks United Airlines
Singapore Airlines KrisFlyerBooks United Airlines
TAP Miles&GoBooks United Airlines
Thai Royal Orchid PlusBooks United Airlines
Turkish Airlines Miles&SmilesBooks United Airlines
United MileagePlusBooks United Airlines

IAD to YOW with one stop

7 connections, most direct first. 2-stop routings and flight times are in Routes with Pro.

Via New York (EWR)United Airlines the whole way
Via Toronto (YTZ)Porter Airlines and Air Canada the whole way
Via Toronto (YYZ)Air Canada the whole way
Via Montreal (YUL)Air Canada the whole way
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Via Boston (BOS)United Airlines, then Porter Airlines
Via Quebec (YQB)United Airlines, then Air Canada
Via Chicago (ORD)United Airlines the whole way

IAD to YOW: common questions

Which airlines fly nonstop from IAD to YOW?

United Airlines (Star Alliance) flies nonstop from Dulles (IAD) to Ottawa (YOW).

How far is Dulles from Ottawa by plane?

Dulles (IAD) and Ottawa (YOW) are 449 miles (723 km) apart along the great circle, the shortest path a flight can take. Connections add distance on top.

Which points programs can book IAD to YOW award flights?

13 programs can book at least one of the nonstop airlines: Air Canada Aeroplan, Air New Zealand Airpoints, ANA Mileage Club, Avianca LifeMiles, Emirates Skywards, EVA Air Infinity MileageLands, JetBlue TrueBlue, Lufthansa Miles & More and 5 more. Which flights each can book depends on its partners, so check the airline before you transfer points.

How many miles does IAD to YOW cost?

It depends on the program: each prices the route from its own chart or dynamically. The Award Flight Pricer compares 30+ programs for IAD to YOW with taxes and fees.

Where can I connect between Dulles and Ottawa?

The most direct connections are through New York (EWR), Toronto (YTZ), Toronto (YYZ), Montreal (YUL) and Boston (BOS). On 5 of them the same airline flies both flights, for example United Airlines through New York.

More routes

YOW to IAD Every nonstop from IAD Every nonstop from YOW

IAD to Istanbul IST IAD to Paris CDG IAD to Frankfurt FRA IAD to Chicago ORD IAD to Dallas DFW IAD to Amsterdam AMS IAD to Dubai DXB IAD to Rome FCO IAD to Atlanta ATL IAD to Madrid MAD IAD to Denver DEN IAD to Munich MUC

Routes are scheduled nonstop flights. The route data is refreshed monthly; this list was last checked November 11, 2026. Seasonal routes and new launches can be missing or end early, so confirm with the airline before you book. Distances are great-circle, the shortest path between the two airports.