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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 4/13. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — IAD
Apr 17 — Apr 241
Fri 4/17
Fri 4/24
1 adult, Economy
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Cheapflights Tip: The best prices from Riverside to Washington, D.C. Dulles Intl are usually found in May or July, booked 90 days in advance, depart on a Thursday or Wednesday 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 March 18, 2026.

This Expedia deal was found by Cheapflights users on 3/13. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/291:52 pm
LAX
-
IAD
1 stop7h 44m
Frontier
Sun 5/1712:36 pm
IAD
-
LAX
1 stop12h 59m
Frontier
Deal found 3/13$265
This CheapOair deal was found by Cheapflights users on 3/16. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/1711:21 pm
LAX
-
IAD
1 stop16h 21m
Frontier
Wed 5/207:40 am
IAD
-
LAX
1 stop9h 35m
Frontier
Deal found 3/16$266
This Kiwi.com deal was found by Cheapflights users on 3/15. 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.
Thu 4/910:51 pm
LAX
-
IAD
1 stop8h 20m
Frontier
Wed 4/157:00 am
IAD
-
LAX
2 stops10h 59m
Frontier
Deal found 3/15$267
This Kiwi.com deal was found by Cheapflights users on 3/15. 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.
Thu 4/161:52 pm
LAX
-
IAD
1 stop7h 44m
Frontier
Mon 4/208:12 am
IAD
-
LAX
2 stops30h 12m
Frontier
Deal found 3/15$268
This Expedia deal was found by Cheapflights users on 3/13. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/141:52 pm
LAX
-
IAD
1 stop7h 44m
Multiple Airlines
Tue 4/217:00 am
IAD
-
LAX
1 stop10h 11m
Multiple Airlines
Deal found 3/13$269
This Frontier deal was found by Cheapflights users on 3/16. 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.
Wed 4/151:52 pm
LAX
-
IAD
1 stop7h 44m
Frontier
Mon 4/206:00 am
IAD
-
LAX
1 stop9h 36m
Frontier
Deal found 3/16$270
This Kiwi.com deal was found by Cheapflights users on 3/13. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/141:52 pm
LAX
-
IAD
1 stop7h 44m
Frontier
Tue 4/218:20 am
IAD
-
LAX
2 stops10h 55m
Frontier
Deal found 3/13$272
This Expedia deal was found by Cheapflights users on 3/18. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/171:52 pm
LAX
-
IAD
1 stop7h 44m
Multiple Airlines
Tue 4/217:00 am
IAD
-
LAX
1 stop10h 11m
Multiple Airlines
Deal found 3/18$274
This Super.com deal was found by Cheapflights users on 3/17. 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.
Thu 4/910:51 pm
LAX
-
IAD
1 stop8h 20m
Frontier
Mon 4/138:30 pm
IAD
-
LAX
1 stop25h 36m
Frontier
Deal found 3/17$275

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 March 18, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$265
(Frontier)

One-way from

$144
(Kiwi.com)

Popular in

December

Cheapest in

May

Average price

$457
Provider with most accurate pricing for Los Angeles Los Angeles-Washington, D.C. (WAS) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Los Angeles Los Angeles-Washington, D.C. (WAS) flights.
Search Deals
From Riverside to Washington, D.C. Dulles Intl
Search Deals
One-way flight from Riverside to Washington, D.C. Dulles Intl
Search Deals
Highest demand for flights based on searches. 10% potential increase in price ($47 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($8 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
Search Deals

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 March 18, 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 Los Angeles

Thu 6/25

9:35 pm-5:41 am

Nonstop5h 06m

Washington, D.C. Dulles Intl

Mon 7/6

10:20 pm-12:57 am

Nonstop5h 37m

$297

Los AngelesWashington, D.C.

LAX - IAD

LAXIAD

Los Angeles Los Angeles

Wed 5/13

10:10 pm-6:12 am

Nonstop5h 02m

Washington, D.C. Dulles Intl

Sat 5/16

8:29 pm-11:15 pm

Nonstop5h 46m

$297

Los AngelesWashington, D.C.

LAX - IAD

LAXIAD

Los Angeles Los Angeles

Thu 4/30

9:35 pm-5:40 am

Nonstop5h 05m

Washington, D.C. Dulles Intl

Mon 5/18

10:05 pm-12:52 am

Nonstop5h 47m

$297

Los AngelesWashington, D.C.

LAX - IAD

LAXIAD

Los Angeles Los Angeles

Fri 5/1

2:20 pm-12:20 am

1 stop7h 00m

Washington, D.C. Dulles Intl

Mon 5/11

5:55 am-12:35 pm

2 stops9h 40m

$302

Los AngelesWashington, D.C.

LAX - IAD

LAXIAD

Los Angeles Los Angeles

Fri 4/10

5:10 am-5:05 pm

1 stop8h 55m

Washington, D.C. Dulles Intl

Wed 4/15

4:30 pm-8:45 pm

1 stop7h 15m

$307

Los AngelesWashington, D.C.

LAX - IAD

LAXIAD

Los Angeles Los Angeles

Fri 4/10

5:10 am-5:05 pm

1 stop8h 55m

Washington, D.C. Dulles Intl

Tue 4/14

6:20 am-4:15 pm

2 stops12h 55m

$312
Quickest round-trip

Los AngelesWashington, D.C.

LAX - IAD

LAXIAD

Los Angeles Los Angeles

Thu 5/7

9:35 pm-5:40 am

Nonstop5h 05m

Washington, D.C. Dulles Intl

Fri 6/12

5:48 pm-8:21 pm

Nonstop5h 33m

$317

Los AngelesWashington, D.C.

LAX - IAD

LAXIAD

Los Angeles Los Angeles

Wed 4/29

10:45 am-11:40 pm

2 stops9h 55m

Washington, D.C. Dulles Intl

Mon 5/11

5:55 am-12:35 pm

2 stops9h 40m

$327

Los AngelesWashington, D.C.

LAX - IAD

LAXIAD

Los Angeles Los Angeles

Thu 5/21

2:20 pm-12:20 am

1 stop7h 00m

Washington, D.C. Dulles Intl

Sun 5/24

6:10 am-12:30 pm

2 stops9h 20m

$362

Los AngelesWashington, D.C.

LAX - IAD

LAXIAD

Los Angeles Los Angeles

Thu 7/2

10:41 pm-6:47 am

Nonstop5h 06m

Washington, D.C. Dulles Intl

Sat 7/11

10:20 pm-12:57 am

Nonstop5h 37m

$374

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/16

Showing 1-10 of 23 resultsSorted by cheapest first
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3

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

How far ahead should I book a flight from Riverside to Washington, D.C. Dulles Intl Airport?

Use this chart to determine the optimal time to book a round-trip flight from Riverside to Dulles Intl. Price data was last updated on March 13, 2026.

To ensure you get the cheapest price possible for a flight from Riverside to Washington, D.C. Dulles Intl Airport, you should look to book at least 90 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Riverside to Washington, D.C. Dulles Intl Airport?

Currently, June is the cheapest month in which you can book a flight from Riverside to Washington, D.C. Dulles Intl Airport (average of $142). Flying from Riverside to Washington, D.C. Dulles Intl Airport in November is currently the most expensive (average of $267). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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 March 18, 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 29% on the cost of your flight, compared to a flight at noon.

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 March 14, 2026.

Travelers seeking maximum savings on their Riverside to Washington, D.C. Dulles Intl Airport flight should consider departing on Friday 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 March 18, 2026.

The most flights from R1V to IAD are scheduled on a Monday (27 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (14 on average).

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 March 18, 2026.
Read through reviews of airlines operating flights from Riverside to Washington, D.C. Dulles Intl Airport, such as Southwest,Alaska Airlines, andHawaiian Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,320 reviews

Boarding

8.1

Food

7.0

Comfort

8.0

Entertainment

7.5

Overall

8.0

Crew

8.6

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.
Southwest
8.0
Very good
4,320 reviews
Southwest
8.0
Very good
4,320 reviews

Boarding

8.1

Food

7.0

Comfort

8.0

Entertainment

7.5

Overall

8.0

Crew

8.6

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.
Alaska Airlines
7.9
Good
12,063 reviews
Southwest
8.0
Very good
4,320 reviews

Boarding

8.1

Food

7.0

Comfort

8.0

Entertainment

7.5

Overall

8.0

Crew

8.6

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.
Hawaiian Airlines
7.8
Good
2,840 reviews
Southwest
8.0
Very good
4,320 reviews

Boarding

8.1

Food

7.0

Comfort

8.0

Entertainment

7.5

Overall

8.0

Crew

8.6

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.
United Airlines
7.4
Good
9,434 reviews
Southwest
8.0
Very good
4,320 reviews

Boarding

8.1

Food

7.0

Comfort

8.0

Entertainment

7.5

Overall

8.0

Crew

8.6

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.
Frontier
5.7
Fair
3,025 reviews
Southwest
8.0
Very good
4,320 reviews

Boarding

8.1

Food

7.0

Comfort

8.0

Entertainment

7.5

Overall

8.0

Crew

8.6

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.

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 and Southwest fly from Riverside to Washington, D.C. Dulles Intl Airport in about 5h 06m. The time it takes to get you to your destination can typically vary by up to 1h 54m. Airlines will cover a distance of 2282 mi. This flight may include one or multiple stops.

  • 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 Hawaiian Airlines, with prices starting from $72 and $98, respectively.

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

    Consider Air China (88%), Asiana Airlines (87%) or Lufthansa (85%) 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 $1,128, our data indicates the cheapest price to be $138. The most popular route (Los Angeles Los Angeles - Washington, D.C. Dulles Intl), is priced around $235.

  • 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.

  • What is the cheapest month to book a flight from Riverside to Washington, D.C. Dulles Intl Airport?

    Currently, June is the cheapest month in which you can book a flight from Riverside to Washington, D.C. Dulles Intl Airport (average of $142). Flying from Riverside to Washington, D.C. Dulles Intl Airport in November is currently the most expensive (average of $267). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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
Woodbridge
Tysons
Owings Mills
Arlington
Springfield
Silver Spring
Herndon
Hyattsville
Hanover
Laurel
Rockville
Upper Marlboro
Fredericksburg
Largo
Bowie
Clinton
Towson
College Park
Cordova

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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.
Los Angeles to Dulles Intl flights
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San Diego to Reagan-National flights
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Las Vegas to Reagan-National flights
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Oakland to Reagan-National flights
Sacramento to Baltimore flights
Santa Ana to Reagan-National flights
Burbank to Baltimore flights
Santa Ana to Baltimore flights
Sacramento to Reagan-National flights
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Burbank to Reagan-National flights
Fresno to Dulles Intl flights
Reno to Reagan-National flights
Long Beach to Dulles Intl flights
San Luis Obispo to Dulles Intl flights
Fresno to Reagan-National flights
San Luis Obispo to Baltimore flights
Palm Springs to Baltimore flights
Reno to Baltimore flights
Long Beach to Reagan-National flights
Palm Springs to Reagan-National flights
San Luis Obispo to Reagan-National flights
Fresno to Baltimore flights
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Santa Barbara to Dulles Intl flights
Long Beach to Baltimore flights
Monterey to Reagan-National flights
Monterey to Baltimore flights

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 March 18, 2026.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$50Average$175FlexibilityNo cancel feeOn-time65%
FrontierCheapest$102Average$277FlexibilityNo cancel feeOn-time62%
Hawaiian AirlinesCheapest$113Average$321FlexibilityNo cancel feeOn-time85%
DeltaCheapest$138Average$455FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$207Average$392FlexibilityNo cancel feeOn-time63%
Alaska AirlinesCheapest$227Average$369FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$227Average$456FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$237Average$415FlexibilityNo cancel feeOn-time71%
JetBlueCheapest$394Average$425FlexibilityNo cancel feeOn-time62%

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