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Dulles Intl

$129+ 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 3/4. Fares are subject to change and may not be available on all flights or dates of travel.
PSC — IAD
Mar 13 — Mar 201
Fri 3/13
Fri 3/20
1 adult, Economy
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Cheap 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 February 11, 2026.

This Alaska Airlines deal was found by Cheapflights users on 2/9. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/286:00 am
PSC
-
IAD
1 stop9h 20m
Alaska Airlines
Tue 5/59:00 am
IAD
-
PSC
1 stop9h 42m
Alaska Airlines
Deal found 2/9$298
This Delta deal was found by Cheapflights users on 2/9. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/285:49 pm
PSC
-
IAD
2 stops15h 16m
Delta
Tue 5/55:07 pm
IAD
-
PSC
2 stops9h 32m
Delta
Deal found 2/9$308
This Delta deal was found by Cheapflights users on 2/10. 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.
Sat 5/1612:29 pm
PSC
-
IAD
1 stop8h 30m
Delta
Tue 5/197:10 am
IAD
-
PSC
1 stop10h 40m
Delta
Deal found 2/10$328
This United Airlines deal was found by Cheapflights users on 2/7. 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.
Tue 3/36:17 am
PSC
-
IAD
1 stop10h 10m
United Airlines
Sat 3/74:03 pm
IAD
-
PSC
1 stop7h 51m
United Airlines
Deal found 2/7$333
This Delta deal was found by Cheapflights users on 2/8. 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.
Sat 3/76:45 am
PSC
-
IAD
2 stops13h 24m
Delta
Sat 3/147:00 am
IAD
-
PSC
1 stop8h 08m
Delta
Deal found 2/8$344
This Delta deal was found by Cheapflights users on 2/7. 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.
Tue 3/31:00 pm
PSC
-
IAD
1 stop7h 10m
Delta
Sat 3/712:35 pm
IAD
-
PSC
2 stops13h 02m
Delta
Deal found 2/7$353
This Delta deal was found by Cheapflights users on 2/8. 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 3/2512:45 pm
PSC
-
IAD
1 stop8h 04m
Delta
Wed 4/87:00 am
IAD
-
PSC
1 stop7h 41m
Delta
Deal found 2/8$379
This Alaska Airlines deal was found by Cheapflights users on 2/9. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/27:17 pm
PSC
-
IAD
1 stop9h 17m
Alaska Airlines
Sat 6/65:33 pm
IAD
-
PSC
1 stop9h 41m
Alaska Airlines
Deal found 2/9$381
This Delta deal was found by Cheapflights users on 2/11. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/3012:45 pm
PSC
-
IAD
1 stop8h 04m
Delta
Sat 4/47:00 am
IAD
-
PSC
1 stop7h 41m
Delta
Deal found 2/11$383
This Alaska Airlines deal was found by Cheapflights users on 2/7. 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 2/285:12 am
PSC
-
IAD
1 stop9h 08m
Alaska Airlines
Wed 3/47:05 am
IAD
-
PSC
1 stop8h 14m
Alaska Airlines
Deal found 2/7$394

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 February 11, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$298
(Alaska Airlines)

One-way from

$129
(United Airlines)

Popular in

February

Cheapest in

March

Average price

$1,822
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. 26% potential increase in price ($238 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 18% potential price decrease ($105 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
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 February 11, 2026.
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

Tue 4/28

6:00 am-6:20 pm

1 stop9h 20m

Washington, D.C. Dulles Intl

Tue 5/5

9:00 am-3:42 pm

1 stop9h 42m

$298

PascoWashington, D.C.

PSC - IAD

PSCIAD

Pasco Tri Cities

Tue 3/3

6:17 am-7:27 pm

1 stop10h 10m

Washington, D.C. Dulles Intl

Sat 3/7

4:03 pm-8:54 pm

1 stop7h 51m

$333

PascoWashington, D.C.

PSC - IAD

PSCIAD

Pasco Tri Cities

Sat 5/16

5:30 pm-9:16 am

2 stops12h 46m

Washington, D.C. Dulles Intl

Tue 5/19

7:10 am-2:50 pm

1 stop10h 40m

$333

PascoWashington, D.C.

PSC - IAD

PSCIAD

Pasco Tri Cities

Tue 3/3

1:00 pm-11:10 pm

1 stop7h 10m

Washington, D.C. Dulles Intl

Sat 3/7

12:35 pm-10:37 pm

2 stops13h 02m

$353

PascoWashington, D.C.

PSC - IAD

PSCIAD

Pasco Tri Cities

Tue 6/2

7:17 pm-7:34 am

1 stop9h 17m

Washington, D.C. Dulles Intl

Sat 6/6

5:33 pm-12:14 am

1 stop9h 41m

$381

PascoWashington, D.C.

PSC - IAD

PSCIAD

Pasco Tri Cities

Mon 3/30

12:45 pm-11:49 pm

1 stop8h 04m

Washington, D.C. Dulles Intl

Sat 4/4

7:00 am-11:41 am

1 stop7h 41m

$383

PascoWashington, D.C.

PSC - IAD

PSCIAD

Pasco Tri Cities

Sat 2/28

5:12 am-5:20 pm

1 stop9h 08m

Washington, D.C. Dulles Intl

Wed 3/4

7:05 am-12:19 pm

1 stop8h 14m

$394

PascoWashington, D.C.

PSC - IAD

PSCIAD

Pasco Tri Cities

Tue 4/21

8:00 am-6:11 pm

1 stop7h 11m

Washington, D.C. Dulles Intl

Fri 4/24

7:20 pm-11:59 pm

1 stop7h 39m

$408

PascoWashington, D.C.

PSC - IAD

PSCIAD

Pasco Tri Cities

Wed 3/4

3:05 pm-5:27 am

1 stop11h 22m

$129

PascoWashington, D.C.

PSC - IAD

PSCIAD

Pasco Tri Cities

Wed 3/4

5:00 pm-9:13 am

2 stops13h 13m

$139

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/9

Showing 1-10 of 15 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 February.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice 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 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 February is currently the most expensive (average of $1,686). 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 February 11, 2026.
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
11,878 reviews

Overall

8.0

Crew

8.5

Food

7.1

Comfort

7.8

Entertainment

7.0

Boarding

8.1

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2025

SEA - MSY

I really got a lesson in upgrades. I let my seat get chosen . Both times a middle seat...on purpose ...even when we were not full. That's petty I sat behind the first class . They got more than 1 drink ...and a snack . .and the staff actually talked to them...behind a see thru shawl/sheet in the aisle....... You could see over the seats just fine and you could hear the voices just fine. But the sheet let You KNOW. Your not welcome here. For a moment I regretted not spending 300 dollars per seat so I could see a smile and eat a sandwhich and enjoy my seat . The married couple drank champain and laughed and flirted with each other. It looked so happy and care free MONEY really does buy happiness ..the hateful glares and sighs from my seat mates brought me back to reality I wasn't rich and I still had 2 hours left in this middle seat.
Alaska Airlines
8.0
Very good
11,878 reviews
Alaska Airlines
8.0
Very good
11,878 reviews

Overall

8.0

Crew

8.5

Food

7.1

Comfort

7.8

Entertainment

7.0

Boarding

8.1

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2025

SEA - MSY

I really got a lesson in upgrades. I let my seat get chosen . Both times a middle seat...on purpose ...even when we were not full. That's petty I sat behind the first class . They got more than 1 drink ...and a snack . .and the staff actually talked to them...behind a see thru shawl/sheet in the aisle....... You could see over the seats just fine and you could hear the voices just fine. But the sheet let You KNOW. Your not welcome here. For a moment I regretted not spending 300 dollars per seat so I could see a smile and eat a sandwhich and enjoy my seat . The married couple drank champain and laughed and flirted with each other. It looked so happy and care free MONEY really does buy happiness ..the hateful glares and sighs from my seat mates brought me back to reality I wasn't rich and I still had 2 hours left in this middle seat.
Delta
7.9
Good
8,181 reviews
Alaska Airlines
8.0
Very good
11,878 reviews

Overall

8.0

Crew

8.5

Food

7.1

Comfort

7.8

Entertainment

7.0

Boarding

8.1

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2025

SEA - MSY

I really got a lesson in upgrades. I let my seat get chosen . Both times a middle seat...on purpose ...even when we were not full. That's petty I sat behind the first class . They got more than 1 drink ...and a snack . .and the staff actually talked to them...behind a see thru shawl/sheet in the aisle....... You could see over the seats just fine and you could hear the voices just fine. But the sheet let You KNOW. Your not welcome here. For a moment I regretted not spending 300 dollars per seat so I could see a smile and eat a sandwhich and enjoy my seat . The married couple drank champain and laughed and flirted with each other. It looked so happy and care free MONEY really does buy happiness ..the hateful glares and sighs from my seat mates brought me back to reality I wasn't rich and I still had 2 hours left in this middle seat.
United Airlines
7.4
Good
9,279 reviews
Alaska Airlines
8.0
Very good
11,878 reviews

Overall

8.0

Crew

8.5

Food

7.1

Comfort

7.8

Entertainment

7.0

Boarding

8.1

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2025

SEA - MSY

I really got a lesson in upgrades. I let my seat get chosen . Both times a middle seat...on purpose ...even when we were not full. That's petty I sat behind the first class . They got more than 1 drink ...and a snack . .and the staff actually talked to them...behind a see thru shawl/sheet in the aisle....... You could see over the seats just fine and you could hear the voices just fine. But the sheet let You KNOW. Your not welcome here. For a moment I regretted not spending 300 dollars per seat so I could see a smile and eat a sandwhich and enjoy my seat . The married couple drank champain and laughed and flirted with each other. It looked so happy and care free MONEY really does buy happiness ..the hateful glares and sighs from my seat mates brought me back to reality I wasn't rich and I still had 2 hours left in this middle seat.

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 $298, Alaska Airlines can have you in Washington, D.C. Dulles Intl Airport from Pasco in 9h 20m. 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 $249, and Alaska Airlines, from $338. Delta is priced at 77% 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 February is currently the most expensive (average of $1,686). 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
Silver Spring
Herndon
Fredericksburg
Hanover
Laurel
Linthicum Heights
Rockville
Upper Marlboro
Manassas
Bowie
Largo
McLean
Clinton
Towson

Browse thousands of different options on Cheapflights for your next trip

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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 February 11, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$149Average$359FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$249Average$577FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$338Average$605FlexibilityNo cancel feeOn-time75%

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