HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Dulles Intl

$204+ Cheap flights from Pasco (PSC) 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 3/24. Fares are subject to change and may not be available on all flights or dates of travel.
PSC — IAD
Nov 22 — Nov 291
Sat 11/22
Sat 11/29
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Pasco to Dulles Intl with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Find flight deals from Pasco to Dulles Intl

Cheapest flights from Pasco to Dulles Intl
Explore the most affordable flight options available from Pasco to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 23, 2025.

This Delta deal was found by Cheapflights users on 10/21. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/141:00 pmPSC - IAD
1 stop8h 54mDelta
Mon 11/1712:37 pmIAD - PSC
2 stops13h 24mDelta
Deal found 10/21$310
This Alaska Airlines deal was found by Cheapflights users on 10/21. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/58:23 amPSC - IAD
1 stop18h 43mAlaska Airlines
Mon 12/87:34 amIAD - PSC
1 stop30h 17mAlaska Airlines
Deal found 10/21$353
This Alaska Airlines deal was found by Cheapflights users on 10/21. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/148:21 amPSC - IAD
1 stop19h 02mAlaska Airlines
Mon 11/176:13 pmIAD - PSC
1 stop21h 46mAlaska Airlines
Deal found 10/21$404
This Delta deal was found by Cheapflights users on 10/20. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/311:40 amPSC - IAD
1 stop8h 53mDelta
Thu 11/66:15 amIAD - PSC
1 stop8h 51mDelta
Deal found 10/20$663
This United Airlines deal was found by Cheapflights users on 10/21. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/512:45 pmPSC - IAD
1 stop13h 31mUnited Airlines
Sun 11/98:25 amIAD - PSC
1 stop15h 37mUnited Airlines
Deal found 10/21$665
This Delta deal was found by Cheapflights users on 10/20. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/911:32 amPSC - IAD
1 stop9h 26mDelta
Fri 11/1412:11 pmIAD - PSC
2 stops13h 50mDelta
Deal found 10/20$753
This Alaska Airlines deal was found by Cheapflights users on 10/21. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/16:00 amPSC - IAD
1 stop7h 40mAlaska Airlines
Mon 11/36:13 pmIAD - PSC
1 stop9h 00mAlaska Airlines
Deal found 10/21$779

Cheap flight deals from Pasco to Dulles Intl

Discover tips and strategies to find the most affordable flight options for your journey from Pasco (PSC) to Dulles Intl (IAD). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated October 23, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$310
(Delta)

One-way from

$204
(Alaska Airlines)

Popular in

September

Cheapest in

August

Average price

$628
Provider with most accurate pricing for Pasco Tri Cities-Washington, D.C. Dulles Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Pasco Tri Cities-Washington, D.C. Dulles Intl flights.
Search Deals
From Pasco Tri Cities to Washington, D.C. Dulles Intl
Search Deals
One-way flight from Pasco Tri Cities to Washington, D.C. Dulles Intl
Search Deals
Highest demand for flights based on searches. 16% potential increase in price ($123 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 10% potential price decrease ($57 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Pasco 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 October 23, 2025.
Use the filters below to find and compare flights from Pasco to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Pasco

Fly to

Dulles Intl

Route

Depart

Return

Price

PascoWashington, D.C.

PSC - IAD

PSCIAD

Pasco Tri Cities

Fri 12/5

5:44 pm-10:13 am

2 stops13h 29m

Washington, D.C. Dulles Intl

Mon 12/8

11:06 am-10:59 pm

2 stops14h 53m

$316

PascoWashington, D.C.

PSC - IAD

PSCIAD

Pasco Tri Cities

Fri 3/6

5:45 pm-11:16 pm

1 stop26h 31m

Washington, D.C. Dulles Intl

Tue 3/10

7:00 am-11:55 am

1 stop7h 55m

$335

PascoWashington, D.C.

PSC - IAD

PSCIAD

Pasco Tri Cities

Fri 12/5

8:23 am-6:06 am

1 stop18h 43m

Washington, D.C. Dulles Intl

Mon 12/8

7:34 am-10:51 am

1 stop30h 17m

$353

PascoWashington, D.C.

PSC - IAD

PSCIAD

Pasco Tri Cities

Fri 11/14

8:21 am-6:23 am

1 stop19h 02m

Washington, D.C. Dulles Intl

Mon 11/17

6:13 pm-12:59 pm

1 stop21h 46m

$404

PascoWashington, D.C.

PSC - IAD

PSCIAD

Pasco Tri Cities

Wed 3/18

5:05 am-3:37 pm

1 stop7h 32m

Washington, D.C. Dulles Intl

Mon 3/23

3:58 pm-8:49 pm

1 stop7h 51m

$409

PascoWashington, D.C.

PSC - IAD

PSCIAD

Pasco Tri Cities

Wed 3/18

1:40 pm-5:55 am

1 stop13h 15m

Washington, D.C. Dulles Intl

Sun 3/22

7:00 am-12:52 pm

1 stop8h 52m

$443

PascoWashington, D.C.

PSC - IAD

PSCIAD

Pasco Tri Cities

Tue 3/24

6:00 pm-5:49 am

1 stop8h 49m

$204

PascoWashington, D.C.

PSC - IAD

PSCIAD

Pasco Tri Cities

Wed 3/18

12:35 pm-11:56 pm

1 stop8h 21m

$205

PascoWashington, D.C.

PSC - IAD

PSCIAD

Pasco Tri Cities

Tue 3/24

5:45 pm-9:11 am

2 stops12h 26m

$210

PascoWashington, D.C.

PSC - IAD

PSCIAD

Pasco Tri Cities

Wed 3/18

5:20 am-10:15 pm

2 stops13h 55m

$294

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/21

Showing 1-10 of 11 results
1
2

Compare providers for flights from Pasco to Dulles Intl

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Pasco to Dulles Intl in October.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
ExpediaPrice Accuracy2 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Pasco-Washington, D.C. Dulles Intl Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Pasco-Washington, D.C. Dulles Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Pasco-Washington, D.C. Dulles Intl Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Pasco-Washington, D.C. Dulles Intl Airport flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Pasco-Washington, D.C. Dulles Intl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Pasco to Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from Pasco 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 Pasco to Washington, D.C. Dulles Intl Airport

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

Currently, August is the cheapest month in which you can book a flight from Pasco to Washington, D.C. Dulles Intl Airport (average of $149). Flying from Pasco to Washington, D.C. Dulles Intl Airport in September is currently the most expensive (average of $1,238). 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.

How much does it cost to fly round-trip from Pasco 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 October 23, 2025.
Read through reviews of airlines operating flights from Pasco to Washington, D.C. Dulles Intl Airport, such as Alaska Airlines, Delta, and United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
11,155 reviews

Entertainment

7.0

Crew

8.5

Food

7.1

Boarding

8.1

Comfort

7.8

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Sep 2025

SEA - MKE

The crew were excellent, flight good, but the actual space for a person to occupy for 4 hours seems to get smaller and smaller 🤣. I am not overweight, and average height….very uncomfortable,, especially when I couldn’t recliner the seat at all, and the pocket in front doesn’t accommodate a water bottle.
Alaska Airlines
8.0
Very good
11,155 reviews
Alaska Airlines
8.0
Very good
11,155 reviews

Entertainment

7.0

Crew

8.5

Food

7.1

Boarding

8.1

Comfort

7.8

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Sep 2025

SEA - MKE

The crew were excellent, flight good, but the actual space for a person to occupy for 4 hours seems to get smaller and smaller 🤣. I am not overweight, and average height….very uncomfortable,, especially when I couldn’t recliner the seat at all, and the pocket in front doesn’t accommodate a water bottle.
Delta
7.9
Good
7,981 reviews
Alaska Airlines
8.0
Very good
11,155 reviews

Entertainment

7.0

Crew

8.5

Food

7.1

Boarding

8.1

Comfort

7.8

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Sep 2025

SEA - MKE

The crew were excellent, flight good, but the actual space for a person to occupy for 4 hours seems to get smaller and smaller 🤣. I am not overweight, and average height….very uncomfortable,, especially when I couldn’t recliner the seat at all, and the pocket in front doesn’t accommodate a water bottle.
United Airlines
7.4
Good
8,991 reviews
Alaska Airlines
8.0
Very good
11,155 reviews

Entertainment

7.0

Crew

8.5

Food

7.1

Boarding

8.1

Comfort

7.8

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Sep 2025

SEA - MKE

The crew were excellent, flight good, but the actual space for a person to occupy for 4 hours seems to get smaller and smaller 🤣. I am not overweight, and average height….very uncomfortable,, especially when I couldn’t recliner the seat at all, and the pocket in front doesn’t accommodate a water bottle.

Related info for your journey

Find useful and relevant information for your journey from Pasco to Dulles Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Pasco to Washington, D.C. Dulles Intl?

    Most people fly from Pasco Tri Cities (PSC) if they book a flight from Pasco to Washington, D.C. Dulles Intl. On average, Tri Cities has 0 outbound flights to Washington, D.C. Dulles Intl per day from 3 airlines. Pasco Tri Cities is conveniently located just 1.9 mi from Pasco’s city center.

  • How long is the flight from Pasco to Washington, D.C. Dulles Intl Airport?

    For as low as $316, Delta can have you in Washington, D.C. Dulles Intl Airport from Pasco in 13h 29m. Airlines will cover a distance of 2151 mi.

  • What are the cheapest airlines flying from Pasco to Washington, D.C. Dulles Intl Airport round-trip?

    Cheapflights users have booked flights from Pasco to Washington, D.C. Dulles Intl Airport round-trip from $204. Other airlines that can offer you cheap pricing are United Airlines, from $265, and Alaska Airlines, from $338. Delta is priced at 66% lower than the current average price of a flight leaving 3 months from now.

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

    The cheapest airlines for a one-way flight from Pasco to Washington, D.C. Dulles Intl Airport are Alaska Airlines ($204), Delta ($205), and American Airlines ($294).

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Pasco 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 Pasco to Washington, D.C. Dulles Intl Airport?

    Currently, August is the cheapest month in which you can book a flight from Pasco to Washington, D.C. Dulles Intl Airport (average of $149). Flying from Pasco to Washington, D.C. Dulles Intl Airport in September is currently the most expensive (average of $1,238). 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
Arlington
Springfield
Silver Spring
Hanover
Gaithersburg
Fredericksburg
Fairfax
Linthicum Heights
Falls Church
Owings Mills
Manassas
Largo
Oxon Hill
Laurel
Towson
National Harbor
Waldorf

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Pasco to Dulles Intl

See prices for flight routes from nearby airports that may be better suited for you.
Seattle to Reagan-National flights
Seattle to Dulles Intl flights
Seattle to Baltimore flights
Portland to Dulles Intl flights
Portland to Reagan-National flights
Portland to Baltimore flights
Spokane to Dulles Intl flights
Spokane to Baltimore flights
Spokane to Reagan-National flights
Pasco to Reagan-National flights
Bellingham to Baltimore flights
Pasco to Baltimore flights
Wenatchee to Baltimore flights
Bellingham to Dulles Intl flights
Yakima to Baltimore flights
Walla Walla to Reagan-National flights
Walla Walla to Dulles Intl flights
Bellingham to Reagan-National flights
Yakima to Reagan-National flights
Walla Walla to Baltimore flights
Yakima to Dulles Intl flights
Wenatchee to Dulles Intl flights
Wenatchee to Reagan-National flights
Pullman to Baltimore flights
Pullman to Reagan-National flights
Pullman to Dulles Intl flights

Top 3 airlines flying from Pasco to Dulles Intl

Discover the top 3 airlines that operate flights from Pasco 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 October 23, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$204Average$422FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$265Average$513FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$338Average$448FlexibilityNo cancel feeOn-time75%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.