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Dulles Intl

$169+ 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 1/20. Fares are subject to change and may not be available on all flights or dates of travel.
PSC — IAD
Jan 27 — Feb 31
Tue 1/27
Tue 2/3
1 adult, Economy
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Cheap flight deals from Pasco to Dulles Intl

Best flights from Pasco to Dulles Intl
Discover carefully curated flight deals from Pasco to Dulles Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 28, 2025.

This Delta deal was found by Cheapflights users on 12/27. 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.
Wed 3/1112:45 pmPSC - IAD
1 stop8h 03mDelta
Tue 3/177:00 amIAD - PSC
1 stop7h 41mDelta
Deal found 12/27$287
This Alaska Airlines deal was found by Cheapflights users on 12/26. 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 2/78:27 amPSC - IAD
1 stop28h 59mAlaska Airlines
Tue 2/106:04 pmIAD - PSC
1 stop9h 16mAlaska Airlines
Deal found 12/26$326
This Delta deal was found by Cheapflights users on 12/26. 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 3/1312:50 pmPSC - IAD
1 stop7h 58mDelta
Fri 3/207:00 amIAD - PSC
1 stop8h 09mDelta
Deal found 12/26$327
This Alaska Airlines deal was found by Cheapflights users on 12/27. 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.
Mon 1/266:19 pmPSC - IAD
2 stops19h 45mAlaska Airlines
Fri 1/305:26 pmIAD - PSC
2 stops30h 31mAlaska Airlines
Deal found 12/27$375
This Delta deal was found by Cheapflights users on 12/27. 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 1/265:05 amPSC - IAD
2 stops11h 04mDelta
Fri 1/305:26 pmIAD - PSC
2 stops9h 12mDelta
Deal found 12/27$398
This Alaska Airlines deal was found by Cheapflights users on 12/27. 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.
Sun 2/11:23 pmPSC - IAD
2 stops24h 41mAlaska Airlines
Thu 2/55:26 pmIAD - PSC
2 stops30h 31mAlaska Airlines
Deal found 12/27$450

Find 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 December 28, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$287
(Alaska Airlines)

One-way from

$169
(Alaska Airlines)

Popular in

September

Cheapest in

August

Average price

$653
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. 13% potential increase in price ($102 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 9% potential price decrease ($55 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 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 December 28, 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

Wed 3/11

12:45 pm-11:48 pm

1 stop8h 03m

Washington, D.C. Dulles Intl

Tue 3/17

7:00 am-11:41 am

1 stop7h 41m

$287

PascoWashington, D.C.

PSC - IAD

PSCIAD

Pasco Tri Cities

Sat 2/7

8:27 am-4:26 pm

1 stop28h 59m

Washington, D.C. Dulles Intl

Tue 2/10

6:04 pm-12:20 am

1 stop9h 16m

$326

PascoWashington, D.C.

PSC - IAD

PSCIAD

Pasco Tri Cities

Fri 3/13

12:50 pm-11:48 pm

1 stop7h 58m

Washington, D.C. Dulles Intl

Fri 3/20

7:00 am-12:09 pm

1 stop8h 09m

$327

PascoWashington, D.C.

PSC - IAD

PSCIAD

Pasco Tri Cities

Mon 1/26

6:19 pm-5:04 pm

2 stops19h 45m

Washington, D.C. Dulles Intl

Fri 1/30

5:26 pm-8:57 pm

2 stops30h 31m

$375

PascoWashington, D.C.

PSC - IAD

PSCIAD

Pasco Tri Cities

Mon 1/26

5:05 am-7:09 pm

2 stops11h 04m

Washington, D.C. Dulles Intl

Fri 1/30

5:26 pm-11:38 pm

2 stops9h 12m

$398

PascoWashington, D.C.

PSC - IAD

PSCIAD

Pasco Tri Cities

Sun 2/1

1:23 pm-5:04 pm

2 stops24h 41m

Washington, D.C. Dulles Intl

Thu 2/5

5:26 pm-8:57 pm

2 stops30h 31m

$450

PascoWashington, D.C.

PSC - IAD

PSCIAD

Pasco Tri Cities

Tue 1/20

5:59 am-4:26 pm

1 stop7h 27m

$169

PascoWashington, D.C.

PSC - IAD

PSCIAD

Pasco Tri Cities

Wed 1/21

1:00 pm-11:10 pm

1 stop7h 10m

$170

PascoWashington, D.C.

PSC - IAD

PSCIAD

Pasco Tri Cities

Sun 1/18

1:00 pm-11:10 pm

1 stop7h 10m

$184

PascoWashington, D.C.

PSC - IAD

PSCIAD

Pasco Tri Cities

Wed 3/11

12:45 pm-11:48 pm

1 stop8h 03m

$184

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/27

Showing 1-10 of 15 results
1
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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 December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
CheapfaremartPrice Accuracy-Trust Score*1 star

*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 eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Pasco-Washington, D.C. Dulles Intl Airport flight deals on Cheapflights vs. eDreams >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 eDreams the most. eDreams 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.

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 December 28, 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
11,554 reviews

Crew

8.5

Food

7.1

Comfort

7.8

Entertainment

7.0

Boarding

8.1

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
11,554 reviews
Alaska Airlines
8.0
Very good
11,554 reviews

Crew

8.5

Food

7.1

Comfort

7.8

Entertainment

7.0

Boarding

8.1

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
8,016 reviews
Alaska Airlines
8.0
Very good
11,554 reviews

Crew

8.5

Food

7.1

Comfort

7.8

Entertainment

7.0

Boarding

8.1

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
9,114 reviews
Alaska Airlines
8.0
Very good
11,554 reviews

Crew

8.5

Food

7.1

Comfort

7.8

Entertainment

7.0

Boarding

8.1

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 $287, Delta can have you in Washington, D.C. Dulles Intl Airport from Pasco in 8h 03m. Airlines will cover a distance of 2151 mi. This flight may include one or multiple stops.

  • 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 $149. Other airlines that can offer you cheap pricing are United Airlines, from $265, and Alaska Airlines, from $338. Delta is priced at 76% lower than the current average price of a flight leaving 3 months from now.

  • 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
Owings Mills
Springfield
Hanover
Silver Spring
Fredericksburg
Linthicum Heights
Rockville
Laurel
Towson
Manassas
National Harbor
Bowie
Largo
McLean
Clinton
Cordova

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Pasco to Dulles Intl

See prices for flight routes from nearby airports that may be better suited for you.
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Wenatchee to Reagan-National flights
Wenatchee to Baltimore flights
Walla Walla to Dulles Intl flights
Walla Walla to Reagan-National 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 December 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$149Average$413FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$265Average$642FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$338Average$605FlexibilityNo cancel feeOn-time75%

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