Cheap flights from Ontario to Washington

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Easily compare round-trip flights from Ontario to Washington

Below you can see the best fares for your round-trip flight route over the next three months. All fares were found on momondo this week. Browse the quickest and cheapest flights from Ontario to Washington by changing tabs
Quickest
Cheapest
Frontier
Frontier
23 Oct
ONT
5:56 am
Ontario airport
7h 08m
1 Stop
4:04 pm
IAD
Washington Dulles Intl airport
Frontier
30 Oct
IAD
3:20 am
Washington Dulles Intl airport
7h 45m
1 Stop
8:05 am
ONT
Ontario airport
157 USD
Frontier
Frontier
30 Oct
ONT
6:06 am
Ontario airport
6h 58m
1 Stop
4:04 pm
IAD
Washington Dulles Intl airport
Frontier
06 Nov
IAD
2:20 am
Washington Dulles Intl airport
7h 45m
1 Stop
7:05 am
ONT
Ontario airport
157 USD
Frontier
Frontier
23 Sep
ONT
5:56 am
Ontario airport
7h 08m
1 Stop
4:04 pm
IAD
Washington Dulles Intl airport
Frontier
25 Sep
IAD
3:20 am
Washington Dulles Intl airport
7h 44m
1 Stop
8:04 am
ONT
Ontario airport
178 USD
American Airlines
American Airlines
15 Nov
ONT
4:40 pm
Ontario airport
6h 23m
1 Stop
2:03 am
+1
DCA
Washington Reagan-National airport
American Airlines
19 Nov
DCA
2:00 am
Washington Reagan-National airport
7h 27m
1 Stop
6:27 am
ONT
Ontario airport
344 USD
Frontier
Frontier
07 Oct
ONT
5:56 am
Ontario airport
7h 08m
1 Stop
4:04 pm
IAD
Washington Dulles Intl airport
Frontier
16 Oct
IAD
3:20 am
Washington Dulles Intl airport
7h 33m
1 Stop
7:53 am
ONT
Ontario airport
178 USD
Frontier
Frontier
30 Oct
ONT
6:06 am
Ontario airport
6h 58m
1 Stop
4:04 pm
IAD
Washington Dulles Intl airport
Frontier
06 Nov
IAD
2:20 am
Washington Dulles Intl airport
7h 45m
1 Stop
7:05 am
ONT
Ontario airport
157 USD

How to get the cheapest flight ticket from Ontario to Washington

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the cheapest month to fly to Washington?
October
The cheapest time of year to fly to Washington from Ontario is October. Most expensive is December
What is the cheapest day to fly to Washington?
Wednesday
The cheapest day of the week is typically Wednesday. The most expensive is typically Sunday
When is the cheapest time to fly to Washington?
in the afternoon
Ontario to Washington flights are approximately 51% more expensive at noon than in the afternoon
What is the cheapest airline that flies to Washington?
Frontier
Frontier, Spirit Airlines, and Sun Country Air are the most popular carriers operating from Ontario to Washington
What is the cheapest route?
Ontario - Washington Dulles Intl
Fly from Ontario to Washington Dulles Intl for the best Ontario - Washington flight prices
When is the cheapest time to book a flight to Washington?
41 days before
The cheapest time to buy a flight from Ontario to Washington is approximately 41 days to departure
60
Days before departure
0

Flight information for Ontario to Washington (WAS - ONT)

Find info about flight duration, direct flights, and airports for your flight from Ontario to Washington
Fastest flight time 6h 22m The fastest flight from Ontario to Washington takes 6h 22m.
Direct flights None There are no direct flights from Ontario to Washington. Popular non-direct routes for this connection are Ontario - Washington Reagan-National and Ontario - Washington Dulles Intl.
Airports in Washington 2 airports There are 2 airports near Washington: Washington Reagan-National (DCA), Washington Dulles Intl (IAD)

Alternative routes for Ontario to Washington

Compare alternative flights to and from nearby airports and cities to discover the best prices and most convenient flight times
Los Angeles to Philadelphia
Fastest flight time
5h 00m
Cheapest price
129 USD
San Diego to Philadelphia
Fastest flight time
4h 55m
Cheapest price
175 USD
Los Angeles to Washington
Fastest flight time
4h 31m
Cheapest price
202 USD
San Diego to Washington
Fastest flight time
4h 30m
Cheapest price
220 USD
Palm Springs to Philadelphia
Fastest flight time
7h 13m
Cheapest price
299 USD
View more

Flights from Ontario to:

*Flight prices to Washington are based on prices for economy tickets found by momondo users during searches within the last 72 hours. These prices may no longer be available.