How does KAYAK find such low prices on flights from California to Washington, D.C.?

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from California to Washington, D.C..

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from California to Washington, D.C.?

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Washington, D.C. from California is likely to change within 7 days, so travelers know whether to wait or book now.

What is the Hacker Fare option on flights from California to Washington, D.C.?

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Washington, D.C. with an airline and back to California with another airline.

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from California to Washington, D.C.?

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Washington, D.C. from California up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

$109 CHEAP FLIGHTS from California to Washington, D.C.

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Flight Deals

Cheap Flights from California to Washington, D.C.

Discover the best prices for you by selecting your travel dates on KAYAK.

Round-trip

One-way

Last minute

Direct

Recent round-trip flight deals from California to Washington, D.C.

Tue, Oct 27 - Mon, Nov 2

5:33 pm - 11:08 amONT Ontario-BWI Baltimore/Washington

14h 35m1 stop Dallas/Fort Worth

2:07 pm - 4:38 pmBWI Baltimore/Washington-ONT Ontario

29h 31m1 stop Dallas/Fort Worth

$197Frontier

Tue, Oct 27 - Mon, Nov 2

5:33 pm - 11:08 amONT Ontario-BWI Baltimore/Washington

14h 35m1 stop Dallas/Fort Worth

2:07 pm - 4:38 pmBWI Baltimore/Washington-ONT Ontario

29h 31m1 stop Dallas/Fort Worth

$235Frontier

Mon, Oct 26 - Wed, Oct 28

11:55 pm - 11:55 amONT Ontario-DCA Washington, D.C. Reagan-National

9h 00m1 stop Chicago Midway

6:00 am - 2:45 pmDCA Washington, D.C. Reagan-National-ONT Ontario

11h 45m1 stop Houston Hobby

$251Southwest

Thu, Jan 28 - Tue, Feb 2

6:00 am - 4:05 pmONT Ontario-DCA Washington, D.C. Reagan-National

7h 05m1 stop Houston George Bush Intcntl

1:00 pm - 8:20 pmDCA Washington, D.C. Reagan-National-ONT Ontario

10h 20m2 stops Newark Denver Intl

$254United Airlines

Mon, Oct 26 - Wed, Oct 28

11:55 pm - 11:55 amONT Ontario-DCA Washington, D.C. Reagan-National

9h 00m1 stop Chicago Midway

6:35 pm - 7:40 amDCA Washington, D.C. Reagan-National-ONT Ontario

16h 05m2 stops Chicago Midway Oakland

$257Southwest

Mon, Oct 26 - Mon, Nov 2

1:35 pm - 12:59 amONT Ontario-IAD Washington, D.C. Dulles Intl

8h 24m1 stop San Francisco

5:38 pm - 10:48 pmIAD Washington, D.C. Dulles Intl-ONT Ontario

8h 10m1 stop San Francisco

$261United Airlines

Fri, Oct 16 - Tue, Oct 20

7:34 pm - 7:00 amONT Ontario-DCA Washington, D.C. Reagan-National

8h 26m1 stop Phoenix Sky Harbor Intl

6:59 am - 1:30 pmDCA Washington, D.C. Reagan-National-ONT Ontario

9h 31m1 stop Dallas/Fort Worth

$261American Airlines

Fri, Oct 23 - Tue, Oct 27

7:34 pm - 7:00 amONT Ontario-DCA Washington, D.C. Reagan-National

8h 26m1 stop Phoenix Sky Harbor Intl

6:59 am - 1:30 pmDCA Washington, D.C. Reagan-National-ONT Ontario

9h 31m1 stop Dallas/Fort Worth

$261American Airlines

Fri, Oct 16 - Tue, Oct 20

2:13 pm - 5:40 amONT Ontario-IAD Washington, D.C. Dulles Intl

12h 27m1 stop Seattle/Tacoma Intl

7:02 am - 1:16 pmIAD Washington, D.C. Dulles Intl-ONT Ontario

9h 14m1 stop Seattle/Tacoma Intl

$263Alaska Airlines

Fri, Oct 16 - Tue, Oct 20

11:13 am - 11:59 pmONT Ontario-IAD Washington, D.C. Dulles Intl

9h 46m1 stop Seattle/Tacoma Intl

7:02 am - 1:16 pmIAD Washington, D.C. Dulles Intl-ONT Ontario

9h 14m1 stop Seattle/Tacoma Intl

$263Alaska Airlines

Recent last minute flight deals from California to Washington, D.C.

Fri, Sep 18 - Thu, Oct 15

12:59 am - 11:40 amLAX Los Angeles-BWI Baltimore/Washington

7h 41m1 stop Dallas/Fort Worth

5:42 pm - 12:34 amBWI Baltimore/Washington-LAX Los Angeles

9h 52m1 stop Houston George Bush Intcntl

$327Frontier

Fri, Sep 18 - Thu, Oct 15

6:00 am - 8:30 pmLAX Los Angeles-BWI Baltimore/Washington

11h 30m1 stop Houston George Bush Intcntl

10:22 am - 5:42 pmBWI Baltimore/Washington-LAX Los Angeles

10h 20m1 stop Atlanta Hartsfield-Jackson

$329Frontier

Wed, Sep 16 - Sat, Oct 3

12:38 pm - 12:10 amLAX Los Angeles-IAD Washington, D.C. Dulles Intl

8h 32m1 stop Atlanta Hartsfield-Jackson

7:02 am - 2:34 pmIAD Washington, D.C. Dulles Intl-LAX Los Angeles

10h 32m1 stop Seattle/Tacoma Intl

$411Multiple Airlines

Wed, Sep 16 - Wed, Sep 30

10:05 pm - 9:25 amSFO San Francisco-BWI Baltimore/Washington

8h 20m1 stop Atlanta Hartsfield-Jackson

7:50 am - 3:56 pmBWI Baltimore/Washington-SFO San Francisco

11h 06m1 stop Seattle/Tacoma Intl

$435Multiple Airlines

Wed, Sep 16 - Sat, Oct 3

10:47 am - 6:50 pmLAX Los Angeles-IAD Washington, D.C. Dulles Intl

5h 03mnonstop

9:28 am - 12:04 pmIAD Washington, D.C. Dulles Intl-LAX Los Angeles

5h 36mnonstop

$476United Airlines

Sat, Sep 19 - Sat, Oct 3

10:47 am - 6:50 pmLAX Los Angeles-IAD Washington, D.C. Dulles Intl

5h 03mnonstop

3:36 pm - 6:08 pmIAD Washington, D.C. Dulles Intl-LAX Los Angeles

5h 32mnonstop

$476United Airlines

Sat, Sep 19 - Sat, Dec 5

12:31 pm - 8:37 pmLAX Los Angeles-DCA Washington, D.C. Reagan-National

5h 06mnonstop

8:42 am - 11:45 amDCA Washington, D.C. Reagan-National-LAX Los Angeles

6h 03mnonstop

$476American Airlines

Sat, Sep 19 - Sat, Dec 5

9:31 am - 9:30 pmLAX Los Angeles-IAD Washington, D.C. Dulles Intl

8h 59m1 stop Charlotte Douglas

6:00 am - 8:56 amIAD Washington, D.C. Dulles Intl-LAX Los Angeles

5h 56mnonstop

$486American Airlines

Sat, Sep 19 - Sat, Dec 5

7:35 am - 3:31 pmLAX Los Angeles-DCA Washington, D.C. Reagan-National

4h 56mnonstop

4:40 pm - 7:33 pmDCA Washington, D.C. Reagan-National-LAX Los Angeles

5h 53mnonstop

$496Delta

Sat, Sep 19 - Sat, Dec 5

11:05 am - 11:44 pmLAX Los Angeles-DCA Washington, D.C. Reagan-National

9h 39m1 stop Atlanta Hartsfield-Jackson

4:40 pm - 7:33 pmDCA Washington, D.C. Reagan-National-LAX Los Angeles

5h 53mnonstop

$506Delta

Recent direct flight deals from California to Washington, D.C.

Fri, Oct 16 - Sat, Oct 17

11:30 pm - 7:21 amLAX Los Angeles-IAD Washington, D.C. Dulles Intl

4h 51mnonstop

8:25 am - 10:56 amIAD Washington, D.C. Dulles Intl-LAX Los Angeles

5h 31mnonstop

$272United Airlines

Sat, Oct 3 - Sun, Oct 4

10:30 pm - 6:29 amLAX Los Angeles-IAD Washington, D.C. Dulles Intl

4h 59mnonstop

9:28 am - 12:04 pmIAD Washington, D.C. Dulles Intl-LAX Los Angeles

5h 36mnonstop

$272United Airlines

Fri, Dec 25 - Tue, Jan 5

12:58 pm - 8:49 pmLAX Los Angeles-DCA Washington, D.C. Reagan-National

4h 51mnonstop

5:00 pm - 7:51 pmDCA Washington, D.C. Reagan-National-LAX Los Angeles

5h 51mnonstop

$277American Airlines

Thu, Jan 28 - Sun, Feb 14

7:58 am - 3:59 pmLAX Los Angeles-DCA Washington, D.C. Reagan-National

5h 01mnonstop

8:30 am - 11:45 amDCA Washington, D.C. Reagan-National-LAX Los Angeles

6h 15mnonstop

$277American Airlines

Thu, Jan 28 - Tue, Feb 2

12:04 pm - 8:00 pmLAX Los Angeles-DCA Washington, D.C. Reagan-National

4h 56mnonstop

9:30 am - 12:30 pmDCA Washington, D.C. Reagan-National-LAX Los Angeles

6h 00mnonstop

$277Alaska Airlines

Fri, Feb 19 - Tue, Feb 23

11:48 am - 8:00 pmLAX Los Angeles-DCA Washington, D.C. Reagan-National

5h 12mnonstop

9:30 am - 12:06 pmDCA Washington, D.C. Reagan-National-LAX Los Angeles

5h 36mnonstop

$277Alaska Airlines

Tue, Oct 27 - Tue, Nov 3

7:35 am - 3:29 pmLAX Los Angeles-DCA Washington, D.C. Reagan-National

4h 54mnonstop

4:40 pm - 7:18 pmDCA Washington, D.C. Reagan-National-LAX Los Angeles

5h 38mnonstop

$297Delta

Sat, Feb 13 - Wed, Feb 17

8:00 am - 4:01 pmLAX Los Angeles-DCA Washington, D.C. Reagan-National

5h 01mnonstop

5:25 pm - 8:22 pmDCA Washington, D.C. Reagan-National-LAX Los Angeles

5h 57mnonstop

$297Delta

Tue, Oct 6 - Tue, Oct 20

5:45 am - 1:35 pmLAX Los Angeles-BWI Baltimore/Washington

4h 50mnonstop

6:15 am - 8:50 amBWI Baltimore/Washington-LAX Los Angeles

5h 35mnonstop

$309Southwest

Sat, Oct 17 - Sat, Oct 24

5:05 am - 12:55 pmLAX Los Angeles-BWI Baltimore/Washington

4h 50mnonstop

6:10 am - 8:45 amBWI Baltimore/Washington-LAX Los Angeles

5h 35mnonstop

$311Southwest

Useful Info

Low season	January
High season	December
Cheapest flight	$109

Best time to beat the crowds with an average 23% drop in price.

Most popular time to fly with an average 9% increase in price.

Flight from Ontario to Washington Dulles Airport

karenFlew with Alaska Airlines-Jun 2024

Personal tips are bring your own food if you're hungry; keep foot space as open as possible for leg room; pack your patience

Verified travelerFlew with Alaska Airlines-Jun 2024

Get to the airport on time because traffic in LA is unexpected

How does KAYAK find such low prices on flights from California to Washington, D.C.?
KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from California to Washington, D.C..
How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from California to Washington, D.C.?
KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Washington, D.C. from California is likely to change within 7 days, so travelers know whether to wait or book now.
What is the Hacker Fare option on flights from California to Washington, D.C.?
Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Washington, D.C. with an airline and back to California with another airline.
What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from California to Washington, D.C.?
Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Washington, D.C. from California up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Linthicum Heights

Hanover

Springfield

Gaithersburg

Towson

Oxon Hill

Owings Mills

Greenbelt

Glen Burnie

Edgewood

Chesapeake Beach

Camp Springs

Ellicott City

Pikesville

Hunt Valley

Colonial Beach

Capitol Heights

Lutherville Timonium

Westminster

Clinton

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$109 Find Cheap Flights from California to Washington, D.C. - Compare and Save

Cheap Flights from California to Washington, D.C.

Recent round-trip flight deals from California to Washington, D.C.

Recent one-way flight deals from California to Washington, D.C.

Recent last minute flight deals from California to Washington, D.C.

Recent direct flight deals from California to Washington, D.C.

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Flights from California to Washington, D.C.: the best tips from KAYAK users

FAQs for booking flights from California to Washington, D.C.

Traveling to a place near Washington, D.C.?

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Complete your trip to Washington, D.C. with a hotel stay or car rental

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