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
27 Aug
ONT
5:56 am
Ontario airport
7h 00m
1 Stop
3:56 pm
IAD
Washington Dulles Intl airport
Frontier
04 Sep
IAD
3:00 am
Washington Dulles Intl airport
7h 24m
1 Stop
7:24 am
ONT
Ontario airport
173 USD
Frontier
Frontier
28 Aug
ONT
5:16 am
Ontario airport
6h 54m
1 Stop
3:10 pm
IAD
Washington Dulles Intl airport
Frontier
04 Sep
IAD
3:00 am
Washington Dulles Intl airport
7h 24m
1 Stop
7:24 am
ONT
Ontario airport
173 USD
Frontier
Frontier
03 Sep
ONT
5:56 am
Ontario airport
7h 00m
1 Stop
3:56 pm
IAD
Washington Dulles Intl airport
Frontier
09 Sep
IAD
3:00 am
Washington Dulles Intl airport
7h 44m
1 Stop
7:44 am
ONT
Ontario airport
173 USD
Frontier
Frontier
28 Aug
ONT
5:16 am
Ontario airport
6h 54m
1 Stop
3:10 pm
IAD
Washington Dulles Intl airport
Frontier
04 Sep
IAD
3:00 am
Washington Dulles Intl airport
7h 24m
1 Stop
7:24 am
ONT
Ontario airport
173 USD
Frontier
Frontier
27 Aug
ONT
5:56 am
Ontario airport
7h 00m
1 Stop
3:56 pm
IAD
Washington Dulles Intl airport
Frontier
04 Sep
IAD
3:00 am
Washington Dulles Intl airport
7h 24m
1 Stop
7:24 am
ONT
Ontario airport
173 USD
Frontier
Frontier
07 Sep
ONT
5:52 am
Ontario airport
6h 51m
1 Stop
3:43 pm
IAD
Washington Dulles Intl airport
Frontier
09 Sep
IAD
3:00 am
Washington Dulles Intl airport
7h 44m
1 Stop
7:44 am
ONT
Ontario airport
173 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
CHEAPEST DAY TO FLY
Wednesday
The cheapest day of the week is typically Wednesday. The most expensive is typically Sunday
CHEAPEST TIME TO FLY
in the afternoon
Ontario to Washington flights are approximately 222% more expensive at noon than in the afternoon
CHEAPEST AIRLINE
Frontier
Frontier, Spirit Airlines, and Sun Country Air are the most popular carriers operating from Ontario to Washington
CHEAPEST ROUTE
Ontario - Washington Dulles Intl
Fly from Ontario to Washington Dulles Intl for the best Ontario - Washington flight prices
CHEAPEST TIME TO BOOK
51 days before
The cheapest time to buy a flight from Ontario to Washington is approximately 51 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 27m The fastest flight from Ontario to Washington takes 6h 27m.
Direct flights None There are no direct flights from Ontario to Washington. Popular non-direct routes for this connection are Ontario - Washington Dulles Intl and Ontario - Washington Reagan-National.
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
San Diego to Philadelphia
Fastest flight time
5h 10m
Cheapest price
181 USD
Los Angeles to Philadelphia
Fastest flight time
5h 00m
Cheapest price
188 USD
Los Angeles to Washington
Fastest flight time
4h 31m
Cheapest price
214 USD
Los Angeles to Washington
Fastest flight time
4h 54m
Cheapest price
234 USD
San Diego to Washington
Fastest flight time
4h 34m
Cheapest price
240 USD
San Diego to Washington
Fastest flight time
7h 22m
Cheapest price
287 USD
Palm Springs to Philadelphia
Fastest flight time
7h 17m
Cheapest price
410 USD
View more

Flights from Ontario to:

Flights to Washington from:

  • Ontario
  • California
  • United States
  • North America
*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.