Cheap flights from Ottawa to Washington

19 nonstop flights a week, 3 of them today. Operated by 2 airlines, about 1h 53m in the air, 455 mi (733 km). Tickets from $350, nonstop from $364.

Flights from Ottawa to Washington

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.

Filters

Best fares from Ottawa to Washington

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

Ottawa to Washington at a glance

flight time, from 1h 35m to 2h 3m
1h 53m
straight-line distance
455 mi (733 km)
flights a week
19
flights today
3
first and last departure
09:45 - 14:00
lowest price, with a connection, 15 November
$350
lowest nonstop price
$364
airlines
2

Ottawa to Washington flight schedule

19 flights a week, 3 today, 8 seasonal or one-off. Departure and arrival times are local.

FlightDepartsArrivesDurationDaysAircraft
UA 3516
United Airlines
09:45 Ottawa/Macdonald-Cartier International
11:48 Washington Dulles International
2h 3m
Daily
Embraer 175
AC 8869
Air Canada
10:30 Ottawa/Macdonald-Cartier International
12:19 Ronald Reagan National, terminal 1
1h 49m
Tue, Wed, Thu, Fri, Sat
Canadair Regional Jet 900
UA 3633
United Airlines
14:00 Ottawa/Macdonald-Cartier International
15:53 Washington Dulles International
1h 53m
Daily
Embraer 175

Seasonal and one-off flights

Not operating in the next two weeks. The first of them is on 1 December.

FlightDepartsArrivesDurationDaysAircraft
UA 3467
United Airlines
09:45 Ottawa/Macdonald-Cartier International
11:48 Washington Dulles International
2h 3m
Seasonal
Embraer 175
UA 3660
United Airlines
14:00 Ottawa/Macdonald-Cartier International
15:53 Washington Dulles International
1h 53m
Seasonal
Embraer 175
UA 3684
United Airlines
09:45 Ottawa/Macdonald-Cartier International
11:46 Washington Dulles International
2h 1m
Seasonal
Embraer 175
UA 4466
United Airlines
09:45 Ottawa/Macdonald-Cartier International
11:43 Washington Dulles International
1h 58m
Seasonal
UA 4459
United Airlines
09:45 Ottawa/Macdonald-Cartier International
11:27 Washington Dulles International
1h 42m
Seasonal
UA 4545
United Airlines
14:46 Ottawa/Macdonald-Cartier International
16:25 Washington Dulles International
1h 39m
Seasonal
UA 4455
United Airlines
19:25 Ottawa/Macdonald-Cartier International
21:00 Washington Dulles International
1h 35m
Seasonal
AC 8869
Air Canada
10:25 Ottawa/Macdonald-Cartier International
12:01 Ronald Reagan National, terminal 1
1h 36m
Seasonal
Canadair Regional Jet 900

Days of the week are taken from the schedule for the next 14 days; schedules change by season. The search shows seat availability and the price for your date.

Airlines flying Ottawa to Washington

Flights a week by schedule and the cheapest nonstop fare of each airline found by recent searches

Airports

Where flights from Ottawa to Washington depart and land

Departure from Ottawa

19 flights a week, 6 mi (10 km) from the city centre

Arrival in Washington

14 flights a week, 22 mi (36 km) from the city centre

Ronald Reagan National closest to the centreDCA

5 flights a week, terminal 1, 3 mi (5 km) from the city centre

When to visit Washington

Weather by month

Best time to visit: April, May, September and October, +20° to +26° by day. In November it is +14° by day and +4° at night, with 8 rainy days.

Jan
+6° −2° 8 days
Feb
+9° −1° 10 days
Mar
+15° +3° 8 days
Apr
+20° +8° 11 days
May
+24° +13° 12 days
Jun
+29° +18° 12 days
Jul
+31° +21° 16 days
Aug
+30° +20° 13 days
Sep
+26° +17° 11 days
Oct
+20° +10° 8 days
Nov
+14° +4° 8 days
Dec
+9° 0° 9 days

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

Frequently asked questions

How long is the flight from Ottawa to Washington?
A nonstop flight takes 1 hour 53 minutes on average, from 1h 35m to 2h 3m depending on the flight.
How far is Washington from Ottawa?
455 mi (733 km) in a straight line between the cities.
Which airlines fly nonstop from Ottawa to Washington?
United Airlines (14 a week) and Air Canada (5 a week).
How many flights a day are there from Ottawa to Washington?
3 flights today and 19 a week, about 2.7 a day on average.
When are the first and last flights from Ottawa to Washington?
The first departure is at 09:45 (UA3516), the last at 14:00 (UA3633). Local time.
What is the cheapest upcoming date to fly from Ottawa to Washington?
15 November 2026 (Sunday): from $350 one way, with a connection, by recent searches. The search shows the price for your dates.
Which airline is the cheapest from Ottawa to Washington?
United Airlines: nonstop tickets from $364 on 15 November by recent searches. Prices change daily, so compare the sellers in the search.
Which Ottawa airport do flights to Washington leave from?
Ottawa/Macdonald-Cartier International (19 a week).
Which Washington airport is closest to the city centre?
Ronald Reagan National (DCA), 3 mi (5 km) from the city centre. Others: Washington Dulles International 22 mi (36 km).