Cheap flights from Ontario, CA to Washington DC
Travel > North America > United States > Ontario, CA to Washington DC flights
Travel tip: Visit Washington DC on your holidays!Check our current prices for flights from Ontario, CA to Washington DC. Please note that we also give you historical search data for this city connection. These are all airfares that people found in the past, in order to find more current flight information from Ontario, CA to Washington DC, you will need to run a search below.
Search and Compare cheap Flights

Book your flight now with Cheapoair.com and save!
Cheap Washington DC airfares from $507/RT are provided by Cheapoair.com. Outbound flight is leaving on 06/06/2025, 02:32 pm from Ontario Int`l (ONT) airport and arrives at Washington Dulles (IAD) at 06:32 am. The flight time is 16 hours and 0 minutes. The Returning flight departes on 06/09/2025, 08:00 am (other return dates are also available). Date posted: 16 Feb 2025
Price evolution for flights From Ontario, CA To Washington DC

Recent Deals on Flights from Ontario, CA to Washington DC:Roundtrip / Oneway
- $507
Multiple Airlines
cheapoair.com check priceFrom To Departure Time Ontario, CA (ONT) Washington DC, DC (IAD) 06/06/2025 02:32 pm Washington DC, DC (IAD) Ontario, CA (ONT) 06/09/2025 08:00 am - We are sorry but currently there are no oneway offers for flights from Ontario, CA to Washington DC.
Please visit this page again later or try out our merchant comparison search. Good luck!
Recently found cheap flight deals
Los Angeles To Colorado Springs Multiple Airlines airfares from Los Angeles in April
$337 Depart: 04/30/2020
Return: 05/05/2020
provided by Travelgrove
Portland To Minneapolis Frontier Airlines airfares from Portland in February
$285 Depart: 02/09/2025
Return: 02/18/2025
provided by Cheapoair.com
New York City To Puerto Vallarta Multiple Airlines airfares from New York City in April
$395 Depart: 04/15/2025
Return: 04/23/2025
provided by Cheapoair.com
New York City To Akron Spirit Airlines airfares from New York City in May
$401 Depart: 05/23/2022
Return: 06/02/2022
provided by Cheapoair.com
Durham To Munich Lufthansa airfares from Durham in July
$1843 Depart: 07/14/2023
Return: 07/21/2023
provided by Cheapoair.com
Chattanooga To Orange County Multiple Airlines airfares from Chattanooga in September
$758 Depart: 09/11/2019
Return: 09/17/2019
provided by FlyFar
New York City To Reno Spirit Airlines airfares from New York City in April
$480 Depart: 04/10/2025
Return: 04/20/2025
provided by Cheapoair.com
Grand Rapids To New York City Frontier Airlines airfares from Grand Rapids in February
$240 Depart: 02/01/2021
Return: 02/16/2021
provided by Cheapoair.com
Salt Lake City To New York City Frontier Airlines airfares from Salt Lake City in March
$536 Depart: 03/14/2025
Return: 03/23/2025
provided by Cheapoair.com
Specify your search details. Browse the cheapest flights from Ontario, CA to Washington DC, Washington DC hotel rooms and Ontario, CA to Washington DC vacation packages from the most popular providers, airline consolidators and travel search engines.