Dulles Intl

$144+ Cheap flights from Riverside, CA to Dulles Intl (IAD)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 6/15. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — IAD
Jun 13 — Jun 201
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Cheapflights Tip: The best prices from Riverside to Washington, D.C. Dulles Intl are usually found in July or August, booked 89 days in advance, depart on a Wednesday or Thursday and return on a Thursday

Cheap flight deals from Riverside to Dulles Intl

Cheapest flights from Riverside to Dulles Intl
Explore the most affordable flight options available from Riverside to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 14, 2026.

This Frontier deal was found by Cheapflights users on 5/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/1110:15 pm
LAX
-
IAD
1 stop7h 05m
Frontier
Sun 7/199:50 am
IAD
-
LAX
1 stop8h 15m
Frontier
Deal found 5/12$270
This Frontier deal was found by Cheapflights users on 5/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/3010:59 am
LAX
-
IAD
1 stop9h 14m
Frontier
Fri 8/149:50 am
IAD
-
LAX
1 stop12h 30m
Frontier
Deal found 5/12$271
This Super.com deal was found by Cheapflights users on 5/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/1110:15 pm
LAX
-
IAD
1 stop7h 05m
Frontier
Wed 7/157:49 am
IAD
-
LAX
1 stop8h 40m
Frontier
Deal found 5/13$272
This Trip.com deal was found by Cheapflights users on 5/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/1311:34 pm
LAX
-
IAD
1 stop7h 39m
Frontier
Thu 7/1611:17 am
IAD
-
LAX
1 stop8h 59m
Frontier
Deal found 5/11$275
This Trip.com deal was found by Cheapflights users on 5/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/3110:15 pm
LAX
-
IAD
1 stop7h 05m
Frontier
Thu 8/69:50 am
IAD
-
LAX
1 stop8h 15m
Frontier
Deal found 5/13$276
This Orbitz deal was found by Cheapflights users on 5/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/2812:08 pm
LAX
-
IAD
1 stop17h 04m
Frontier
Mon 6/19:12 am
IAD
-
LAX
1 stop26h 51m
Frontier
Deal found 5/12$277
This Booking.com deal was found by Cheapflights users on 5/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/238:27 pm
LAX
-
IAD
1 stop8h 45m
Frontier
Tue 5/269:12 am
IAD
-
LAX
1 stop26h 51m
Frontier
Deal found 5/9$278
This Frontier deal was found by Cheapflights users on 5/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/2611:20 pm
LAX
-
IAD
1 stop7h 52m
Frontier
Thu 7/24:32 pm
IAD
-
LAX
1 stop9h 55m
Frontier
Deal found 5/11$280
This Super.com deal was found by Cheapflights users on 5/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/2611:20 pm
LAX
-
IAD
1 stop7h 52m
Frontier
Mon 6/19:12 am
IAD
-
LAX
1 stop26h 51m
Frontier
Deal found 5/12$281
This Trip.com deal was found by Cheapflights users on 5/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/2911:21 pm
LAX
-
IAD
1 stop16h 11m
Frontier
Sat 6/69:12 am
IAD
-
LAX
1 stop13h 20m
Frontier
Deal found 5/12$282
This Trip.com deal was found by Cheapflights users on 5/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/411:19 am
LAX
-
IAD
1 stop8h 58m
Frontier
Sat 8/19:30 am
IAD
-
LAX
1 stop26h 54m
Frontier
Deal found 5/12$283
This Kiwi.com deal was found by Cheapflights users on 5/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/3110:15 pm
LAX
-
IAD
1 stop7h 05m
Frontier
Tue 8/1811:11 am
IAD
-
LAX
2 stops15h 32m
Frontier
Deal found 5/12$284

Find flight deals from Riverside to Dulles Intl

Keep the following information in mind while searching for Riverside to Dulles Intl flight deals. Data was last updated May 14, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$270
(Frontier)

One-way from

$144
(Trip.com)

Popular in

November

Cheapest in

July

Average price

$388
Provider with most accurate pricing for Los Angeles-Washington, D.C. (WAS) flight deals.
Provider most trusted by Cheapflights users for Los Angeles-Washington, D.C. (WAS) flights.
From Riverside to Washington, D.C. Dulles Intl
One-way flight from Riverside to Washington, D.C. Dulles Intl
Highest demand for flights based on searches. 7% potential increase in price ($34 potential increase over avg. RT price).
Cheapest flight prices on average. 1% potential price decrease ($7 potential savings vs. average RT price).
Average for round-trip flights in May 2026

Cheapflights Fare Finder

 
Customize your flight search to find flights from Riverside to Dulles Intl that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated May 14, 2026.
Use the filters below to find and compare flights from Riverside to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Los AngelesWashington, D.C.

LAX - IAD

LAXIAD

Los Angeles

Mon 6/15

9:30 pm-5:36 am

Nonstop5h 06m

Washington, D.C. Dulles Intl

Wed 6/17

10:20 pm-12:57 am

Nonstop5h 37m

$349

Los AngelesWashington, D.C.

LAX - IAD

LAXIAD

Los Angeles

Sat 7/25

9:20 pm-5:26 am

Nonstop5h 06m

Washington, D.C. Dulles Intl

Wed 7/29

10:20 pm-12:57 am

Nonstop5h 37m

$357

Los AngelesWashington, D.C.

LAX - IAD

LAXIAD

Los Angeles

Mon 7/6

9:20 pm-5:26 am

Nonstop5h 06m

Washington, D.C. Dulles Intl

Sat 7/11

8:18 pm-10:55 pm

Nonstop5h 37m

$365

Los AngelesWashington, D.C.

LAX - IAD

LAXIAD

Los Angeles

Wed 7/1

11:30 pm-7:33 am

Nonstop5h 03m

Washington, D.C. Dulles Intl

Tue 7/7

8:18 pm-10:55 pm

Nonstop5h 37m

$404

Los AngelesWashington, D.C.

LAX - IAD

LAXIAD

Los Angeles

Thu 8/6

11:30 pm-7:33 am

Nonstop5h 03m

Washington, D.C. Dulles Intl

Wed 8/12

7:00 am-9:34 am

Nonstop5h 34m

$412

Los AngelesWashington, D.C.

LAX - IAD

LAXIAD

Los Angeles

Thu 7/9

9:20 pm-5:26 am

Nonstop5h 06m

Washington, D.C. Dulles Intl

Mon 7/13

8:18 pm-10:55 pm

Nonstop5h 37m

$412

Los AngelesWashington, D.C.

LAX - IAD

LAXIAD

Los Angeles

Sat 6/6

10:58 am-11:59 pm

1 stop10h 01m

Washington, D.C. Dulles Intl

Fri 6/12

6:14 pm-8:47 am

1 stop17h 33m

$422
Quickest round-trip

Los AngelesWashington, D.C.

LAX - IAD

LAXIAD

Los Angeles

Sat 8/8

9:20 pm-5:26 am

Nonstop5h 06m

Washington, D.C. Dulles Intl

Wed 8/12

1:03 pm-3:26 pm

Nonstop5h 23m

$427

Los AngelesWashington, D.C.

LAX - IAD

LAXIAD

Los Angeles

Sat 9/26

5:50 pm-5:40 am

1 stop8h 50m

Washington, D.C. Dulles Intl

Sat 10/17

7:00 am-7:30 pm

2 stops15h 30m

$466

Los AngelesWashington, D.C.

LAX - IAD

LAXIAD

Los Angeles

Thu 5/28

6:10 pm-7:34 am

1 stop10h 24m

Washington, D.C. Dulles Intl

Tue 6/2

6:00 am-6:55 pm

2 stops15h 55m

$475

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/12

Showing 1-10 of 24 resultsSorted by cheapest first
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Best time to book a flight from Riverside to Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from Riverside with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Riverside to Washington, D.C. Dulles Intl Airport

What is the cheapest time of day to fly from R1V to IAD?

Find hourly flight availability from Riverside to Dulles Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated May 14, 2026.

It’s optimal to fly from Riverside to Washington, D.C. Dulles Intl Airport in the afternoon. By choosing this option you can save up to 63% on the cost of your flight, compared to a flight in the morning.

What is the cheapest day to fly from Riverside to Washington, D.C. Dulles Intl Airport?

Use this chart to determine the cheapest time to fly round-trip from Riverside to Dulles Intl. Price data was last updated on May 9, 2026.

Travelers seeking maximum savings on their Riverside to Washington, D.C. Dulles Intl Airport flight should consider departing on Tuesday afternoons when fares are most often at their lowest. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Riverside to Washington, D.C. Dulles Intl Airport

Explore weekly flight availability from Riverside to Dulles Intl. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated May 14, 2026.

The most flights from R1V to IAD are scheduled on a Thursday (31 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (17 on average).

How much does it cost to fly round-trip from Riverside to Washington, D.C. Dulles Intl Airport?

Reviews of airlines servicing Dulles Intl

Get insights into the airlines that provide service to Dulles Intl. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Dulles Intl. Reviews last updated May 14, 2026.
Read through reviews of airlines operating flights from Riverside to Washington, D.C. Dulles Intl Airport, such as Alaska Airlines,Hawaiian Airlines, andUnited Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Entertainment

7.0

Boarding

8.1

Overall

7.9

Crew

8.5

Comfort

7.8

Food

7.0

Reviews

1 / 20
10.0
Excellent

Franzi,Mar 2026

SFO - PDX

I love flying with Alaska. I think they sre the best airline.

Entertainment

7.0

Boarding

8.1

Overall

7.9

Crew

8.5

Comfort

7.8

Food

7.0

Reviews

1 / 20
10.0
Excellent

Franzi,Mar 2026

SFO - PDX

I love flying with Alaska. I think they sre the best airline.

Entertainment

7.0

Boarding

8.1

Overall

7.9

Crew

8.5

Comfort

7.8

Food

7.0

Reviews

1 / 20
10.0
Excellent

Franzi,Mar 2026

SFO - PDX

I love flying with Alaska. I think they sre the best airline.

Entertainment

7.0

Boarding

8.1

Overall

7.9

Crew

8.5

Comfort

7.8

Food

7.0

Reviews

1 / 20
10.0
Excellent

Franzi,Mar 2026

SFO - PDX

I love flying with Alaska. I think they sre the best airline.

Entertainment

7.0

Boarding

8.1

Overall

7.9

Crew

8.5

Comfort

7.8

Food

7.0

Reviews

1 / 20
10.0
Excellent

Franzi,Mar 2026

SFO - PDX

I love flying with Alaska. I think they sre the best airline.

Entertainment

7.0

Boarding

8.1

Overall

7.9

Crew

8.5

Comfort

7.8

Food

7.0

Reviews

1 / 20
10.0
Excellent

Franzi,Mar 2026

SFO - PDX

I love flying with Alaska. I think they sre the best airline.

Related info for your journey

Find useful and relevant information for your journey from Riverside to Dulles Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • How long is the flight from Riverside to Washington, D.C. Dulles Intl Airport?

    Airlines like United Airlines fly from Riverside to Washington, D.C. Dulles Intl Airport in about 5h 06m. The time it takes to get you to your destination is usually consistent. Airlines will cover a distance of 2282 mi. All flights are typically nonstop.

  • What are the cheapest airlines to fly from Riverside to Washington, D.C. Dulles Intl Airport one-way?

    $48 is the cheapest one-way deal found within the past few days, from Spirit Airlines. You may also be able to find cheap deals on Frontier and Southwest, with prices starting from $72 and $111, respectively.

  • What are the most reliable airlines from Riverside to Washington, D.C. Dulles Intl Airport?

    Consider Air New Zealand (87%), Virgin Australia (87%) or Air China (86%) when booking your flight. These represent the most reliable airlines when flying from Riverside to Washington, D.C. Dulles Intl Airport.

  • What are the cheapest flights from Riverside to Washington, D.C. Dulles Intl Airport?

    Looking for the cheapest flight from Riverside to Washington, D.C. Dulles Intl Airport? While on average our users pay $1,004, our data indicates the cheapest price to be $128. The most popular route (Los Angeles - Washington, D.C. Dulles Intl), is priced around $227.

  • Can I find deals for flights from Riverside to Dulles Intl that include hotel bookings?

    Yes. In addition to deals on Riverside to Dulles Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Riverside to Dulles Intl?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Riverside to Dulles Intl.

  • Can I find deals for business class flights from Riverside to Dulles Intl?

    Yes. Cheapflights offers flight deals from Riverside to Dulles Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Traveling to a place near Washington, D.C. Dulles Intl Airport?

Book flights to Washington, D.C. Dulles Intl Airport if you plan to visit one of these locations
Alexandria
Tysons
Owings Mills
Springfield
Arlington
Herndon
Rockville
Hyattsville
Manassas
Fredericksburg
Silver Spring
Hanover
Laurel
Woodbridge
Waldorf
Largo
Clinton
Hunt Valley
Cordova
Reston

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Riverside to Dulles Intl

See prices for flight routes from nearby airports that may be better suited for you.

Top 9 airlines flying from Riverside to Dulles Intl

Discover the top 9 airlines that operate flights from Riverside to Dulles Intl. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated May 14, 2026.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$50Average$175FlexibilityNo cancel feeOn-time65%
FrontierCheapest$102Average$285FlexibilityNo cancel feeOn-time62%
Hawaiian AirlinesCheapest$113Average$325FlexibilityNo cancel feeOn-time85%
DeltaCheapest$138Average$471FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$207Average$386FlexibilityNo cancel feeOn-time63%
Alaska AirlinesCheapest$227Average$356FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$232Average$491FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$237Average$461FlexibilityNo cancel feeOn-time71%
JetBlueCheapest$394Average$425FlexibilityNo cancel feeOn-time62%

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