$124 Flight Deals from Ontario International Airport to Washington Dulles Airport

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Save an average of $240 per person when bundling your flight and hotel together with Priceline

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Stops

Up to 1 stop

$249

Up to 2 stops

$298

Airlines

Alaska Airlines

$266

American Airlines

$416

Delta Air Lines

$267

Frontier Airlines

$249

Hawaiian Airlines

$384

United Airlines

$416

Cabin Class

Economy

$249

Departure Airports

Ontario International Airport

$249

Arrival Airports

Washington Dulles Airport

$249

Layover Airports

Dallas Fort Worth International Airport

$416

Denver International Airport

$249

Detroit Metropolitan Airport

$298

Harry Reid International Airport

$249

Hartsfield Jackson Atlanta International Airport

$267

Minneapolis-St Paul International/Wold-Chamberlain Airport

$442

Norman Y. Mineta San Jose International Airport

$335

Portland International Airport

$546

Salt Lake City International Airport

$267

San Francisco International Airport

$398

Seattle Tacoma International Airport

$266

Best Price. GUARANTEED.

Exclusively for Priceline Members
Tired of searching? Book now!
We'll refund the difference if you find a lower price.

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On average save $240 per traveler

Frontier Airlines

05/04/25

2:28pm

ONT

16h 3m

LAS

05/05/25

6:31am

IAD

Frontier Airlines

05/11/25

7:00am

IAD

4h 15m

DEN

05/11/25

11:15am

ONT

^$249

Free cancellation within 83 hours of booking

Alaska Airlines

04/24/25

11:46am

ONT

12h 37m

SEA

04/25/25

12:23am

IAD

Alaska Airlines

05/02/25

5:38pm

IAD

2h 49m

Direct

05/02/25

8:27pm

ONT

^$266

Free cancellation within 83 hours of booking

Delta Air Lines

05/01/25

5:30pm

ONT

12h 50m

SEA

05/02/25

6:20am

IAD

Delta Air Lines

05/10/25

5:15pm

IAD

2h 40m

Direct

05/10/25

7:55pm

ONT

^$267

Free cancellation within 83 hours of booking

Delta Air Lines

04/26/25

7:00am

ONT

12h 44m

ATL

04/26/25

7:44pm

IAD

Delta Air Lines

05/03/25

5:10pm

IAD

2h 52m

Direct

05/03/25

8:02pm

ONT

^$267

Free cancellation within 83 hours of booking

Delta Air Lines

05/02/25

1:20pm

ONT

10h 11m

SLC

05/02/25

11:31pm

IAD

Delta Air Lines

05/10/25

5:15pm

IAD

2h 40m

Direct

05/10/25

7:55pm

ONT

^$267

Free cancellation within 83 hours of booking

Delta Air Lines

04/25/25

12:07pm

ONT

12h 21m

ATL

04/26/25

12:28am

IAD

Delta Air Lines

04/29/25

5:10pm

IAD

2h 52m

Direct

04/29/25

8:02pm

ONT

^$267

Free cancellation within 83 hours of booking

Delta Air Lines

05/08/25

2:55pm

ONT

14h 57m

SEA

05/09/25

5:52am

IAD

Delta Air Lines

05/10/25

5:15pm

IAD

2h 40m

Direct

05/10/25

7:55pm

ONT

^$267

Free cancellation within 83 hours of booking

Delta Air Lines

05/05/25

10:15pm

ONT

11h 3m

ATL

05/06/25

9:18am

IAD

Delta Air Lines

05/10/25

5:15pm

IAD

2h 40m

Direct

05/10/25

7:55pm

ONT

^$267

Free cancellation within 83 hours of booking

Alaska Airlines

05/05/25

6:24pm

ONT

13h 19m

SEA

05/06/25

7:43am

IAD

Alaska Airlines

05/13/25

6:30am

IAD

8h 16m

SEA

05/13/25

2:46pm

ONT

^$272

Free cancellation within 83 hours of booking

Delta Air Lines

05/02/25

1:20pm

ONT

10h 11m

SLC

05/02/25

11:31pm

IAD

Delta Air Lines

05/07/25

6:55am

IAD

5h 20m

SLC

05/07/25

12:15pm

ONT

^$287

Free cancellation within 83 hours of booking

Delta Air Lines

05/08/25

2:55pm

ONT

14h 57m

SEA

05/09/25

5:52am

IAD

Delta Air Lines

05/17/25

6:59am

IAD

4h 51m

ATL

05/17/25

11:50am

ONT

^$287

Free cancellation within 83 hours of booking

Delta Air Lines

05/05/25

10:15pm

ONT

11h 3m

ATL

05/06/25

9:18am

IAD

Delta Air Lines

05/07/25

6:55am

IAD

5h 20m

SLC

05/07/25

12:15pm

ONT

^$287

Free cancellation within 83 hours of booking

Alaska Airlines

04/24/25

11:46am

ONT

12h 37m

SEA

04/25/25

12:23am

IAD

Alaska Airlines

05/02/25

6:30am

IAD

8h 58m

SEA

05/02/25

3:28pm

ONT

^$297

Free cancellation within 83 hours of booking

Delta Air Lines

04/28/25

10:15pm

ONT

13h 16m

ATL

DTW

04/29/25

11:31am

IAD

Delta Air Lines

04/30/25

12:47pm

IAD

5h 39m

DTW

04/30/25

6:26pm

ONT

^$298

Free cancellation within 83 hours of booking

Alaska Airlines

05/16/25

7:20pm

ONT

12h 16m

SEA

05/17/25

7:36am

IAD

Alaska Airlines

05/24/25

7:25pm

IAD

2h 38m

Direct

05/24/25

10:03pm

ONT

^$306

Free cancellation within 83 hours of booking

Alaska Airlines

04/24/25

11:46am

ONT

12h 37m

SEA

04/25/25

12:23am

IAD

Alaska Airlines

04/30/25

6:30am

IAD

11h 23m

SEA

SJC

04/30/25

5:53pm

ONT

^$335

Free cancellation within 83 hours of booking

Delta Air Lines

04/27/25

10:15pm

ONT

11h 3m

ATL

04/28/25

9:18am

IAD

Delta Air Lines

04/30/25

6:00am

IAD

4h 38m

DTW

04/30/25

10:38am

ONT

^$378

Free cancellation within 83 hours of booking

Hawaiian Airlines

04/26/25

6:00am

ONT

14h 43m

SEA

04/26/25

8:43pm

IAD

Hawaiian Airlines

05/03/25

6:30am

IAD

9h 2m

SEA

05/03/25

3:32pm

ONT

^$384

Free cancellation within 83 hours of booking

Hawaiian Airlines

05/05/25

6:24pm

ONT

13h 19m

SEA

05/06/25

7:43am

IAD

Hawaiian Airlines

05/12/25

6:30am

IAD

9h 2m

SEA

05/12/25

3:32pm

ONT

^$384

Free cancellation within 83 hours of booking

Alaska Airlines

05/15/25

11:51am

ONT

12h 8m

SEA

05/15/25

11:59pm

IAD

Alaska Airlines

05/25/25

7:15am

IAD

4h 39m

SFO

05/25/25

11:54am

ONT

^$398

Free cancellation within 83 hours of booking

United Airlines

04/29/25

1:35pm

ONT

9h 39m

DEN

04/29/25

11:14pm

IAD

United Airlines

05/06/25

10:10am

IAD

4h 59m

DEN

05/06/25

3:09pm

ONT

^$416

Free cancellation within 83 hours of booking

United Airlines

05/06/25

1:45pm

ONT

11h 24m

SFO

05/07/25

1:09am

IAD

United Airlines

05/13/25

8:20am

IAD

6h 49m

DEN

05/13/25

3:09pm

ONT

^$416

Free cancellation within 83 hours of booking

American Airlines

04/26/25

12:50pm

ONT

9h 52m

DFW

04/26/25

10:42pm

IAD

American Airlines

05/10/25

5:07pm

IAD

4h 51m

DFW

05/10/25

9:58pm

ONT

^$416

Free cancellation within 83 hours of booking

American Airlines

04/29/25

10:54am

ONT

11h 48m

DFW

04/29/25

10:42pm

IAD

American Airlines

05/06/25

6:17am

IAD

7h 35m

DFW

05/06/25

1:52pm

ONT

^$416

Free cancellation within 83 hours of booking

American Airlines

04/26/25

12:50pm

ONT

9h 52m

DFW

04/26/25

10:42pm

IAD

American Airlines

05/03/25

6:18am

IAD

7h 31m

DFW

05/03/25

1:49pm

ONT

^$416

Free cancellation within 83 hours of booking

American Airlines

04/25/25

12:50pm

ONT

9h 52m

DFW

04/25/25

10:42pm

IAD

American Airlines

05/10/25

5:07pm

IAD

4h 51m

DFW

05/10/25

9:58pm

ONT

^$416

Free cancellation within 83 hours of booking

Delta Air Lines

04/24/25

5:45am

ONT

17h 55m

SEA

MSP

04/24/25

11:40pm

IAD

Delta Air Lines

05/03/25

6:00am

IAD

6h 16m

MSP

SLC

05/03/25

12:16pm

ONT

^$442

Free cancellation within 83 hours of booking

Hawaiian Airlines

05/12/25

6:24pm

ONT

13h 19m

SEA

05/13/25

7:43am

IAD

Hawaiian Airlines

05/19/25

6:30am

IAD

9h 20m

SEA

05/19/25

3:50pm

ONT

^$486

Free cancellation within 83 hours of booking

Alaska Airlines

05/15/25

11:51am

ONT

12h 8m

SEA

05/15/25

11:59pm

IAD

Alaska Airlines

05/17/25

7:00am

IAD

8h 24m

SEA

PDX

05/17/25

3:24pm

ONT

^$546

Free cancellation within 83 hours of booking

Hawaiian Airlines

05/11/25

7:24pm

ONT

12h 19m

SEA

05/12/25

7:43am

IAD

Hawaiian Airlines

05/18/25

6:30am

IAD

9h 20m

SEA

05/18/25

3:50pm

ONT

^$682

Free cancellation within 83 hours of booking

Top Deals on flights from Ontario International Airport to Washington Dulles Airport

Los Angeles, US (LAX) - Washington, US (WAS)

Frontier Airlines

May 1

6:35pm

ONT

11h 56m

LAS

May 2

6:31am

IAD

as low as

$124

Los Angeles, US (LAX) - Washington, US (WAS)

Frontier Airlines

May 15

6:35pm

ONT

11h 56m

LAS

May 16

6:31am

IAD

as low as

$154

Los Angeles, US (LAX) - Washington, US (WAS)

Delta Air Lines

May 5

10:15pm

ONT

11h 3m

ATL

May 6

9:18am

IAD

as low as

$158

Los Angeles, US (LAX) - Washington, US (WAS)

Delta Air Lines

Apr 30

1:20pm

ONT

10h 11m

SLC

Apr 30

11:31pm

IAD

as low as

$158

Los Angeles, US (LAX) - Washington, US (WAS)

Alaska Airlines

May 5

6:24pm

ONT

13h 19m

SEA

May 6

7:43am

IAD

as low as

$158

Los Angeles, US (LAX) - Washington, US (WAS)

Delta Air Lines

May 12

10:00pm

ONT

11h 14m

ATL

May 13

9:14am

IAD

as low as

$158

Los Angeles, US (LAX) - Washington, US (WAS)

Delta Air Lines

May 8

2:55pm

ONT

14h 57m

SEA

May 9

5:52am

IAD

as low as

$158

Los Angeles, US (LAX) - Washington, US (WAS)

Delta Air Lines

May 13

1:10pm

ONT

10h 18m

SLC

May 13

11:28pm

IAD

as low as

$186

Los Angeles, US (LAX) - Washington, US (WAS)

American Airlines

May 16

10:40pm

ONT

9h 58m

CLT

May 17

8:38am

IAD

as low as

$208

Los Angeles, US (LAX) - Washington, US (WAS)

American Airlines

May 9

12:45pm

ONT

10h 12m

DFW

May 9

10:57pm

IAD

as low as

$208

Los Angeles, US (LAX) - Washington, US (WAS)

American Airlines

May 8

10:40pm

ONT

9h 58m

CLT

May 9

8:38am

IAD

as low as

$208

Los Angeles, US (LAX) - Washington, US (WAS)

American Airlines

May 5

10:00am

ONT

12h 57m

PHX

DFW

May 5

10:57pm

IAD

as low as

$213

Flights to Washington

Return flights

Flights From Washington Dulles Airport To Ontario International Airport

Browse origins

Flights
North America
United States
California
Los Angeles
Ontario International Airport

Browse destinations

Flights
North America
United States
Washington, D.c.
Washington
Washington Dulles Airport

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Flight Deals from Ontario International Airport to Washington Dulles Airport from $124

Stops

Airlines

Cabin Class

Departure Airports

Arrival Airports

Layover Airports

Best Price. GUARANTEED.

Top Deals on flights from Ontario International Airport to Washington Dulles Airport

Flights to Washington

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