Find Cheap Flights from Portland to Washington Dulles Intl (PDX - IAD)

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Good to Know

Low Season:
September
Best time to beat the crowds
4%
expected price decrease
High Season:
December
Most popular time to fly
18%
expected price increase
Average Price:
$469
(avg. price over the last 2 weeks)
Good Deal:
$343
or less (round trip)

When to Book Flights from Portland to Washington Dulles Intl

Average price per month
Flight prices as travel date approaches
-1 day
-2 days

Top tips for Finding a Cheap Flight

Looking for a cheap flight? 25% of our users found flights on this route for $343 or less.
The cheapest flight from Portland to Washington Dulles Intl was found 77 days before departure, on average.
Book at least 1 week before departure in order to get a below-average price.
Morning departure is around 38% cheaper than an evening flight, on average*.
*Average of the lowest prices shown in KAYAK’s search results for departures within the next 30 days

FAQs for Booking Portland to Washington Dulles Intl Flights

How long does a flight from Portland to Washington Dulles Intl take?
An average nonstop flight takes 4h 49m, covering a distance of 2322 miles.
How many flights are there between Portland and Washington Dulles Intl?
There are 39 (nonstop) flights between Portland and Washington Dulles Intl per week, averaging 5 per day.
Which airlines provide the cheapest flights from Portland to Washington Dulles Intl?
In the past 3 days, the cheapest round-trip tickets were found on Multiple Airlines ($260), Frontier ($281) and United ($435).
Do I need a passport to fly between Portland and Washington Dulles Intl?
No.
Which airlines fly most frequently between Portland and Washington Dulles Intl?
SAS (2 times daily), United (2 times daily), Brussels Airlines (1 times daily) are the most frequent flyers on this route.
What’s the cheapest day of the week to fly Portland to Washington Dulles Intl?
For Portland to Washington Dulles Intl, Tuesday is the cheapest day to fly on average and Saturday is the most expensive. Flying from Washington Dulles Intl back to Portland, the best deals are generally found on Thursday, with Friday being the most expensive.

Book cheap flights from Portland to Washington Dulles Intl (round-trip)

Airports
Origin
Portland
$260
only
$260
Destination
Washington
$260
only
$260
Tue, Jan 9
PDX
IAD
9h 45m
Wed, Jan 17
IAD
PDX
19h 13m
Trip: 9 days
Overall 0.0 Poor
Based on 0 reviews
Tue, Apr 10
PDX
IAD
7h 03m
Sat, Apr 14
IAD
PDX
20h 56m
Trip: 5 days
5.6OkayShow reviews
Overall 5.6 Okay
Based on 33029 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
MCO
DEN
Good 6.0

It was cheap

DEN
RNO
Excellent 10.0

Very efficient boarding. Although I thought it strange at first that Frontier charges for overhead storage, the storage situation was roomy even with a full flight.

PVD
MCO
Mediocre 2.0

Seats are hard and uncomfortable. Very small drink tray and lights are not adjustable.

MSP
RSW
Mediocre 3.0

Flight was smooth

Crew did basically nothing but talk among themselves. Didn’t pick up garbage till the last minute. Many passengers took up their own garbage.

LAS
STL
Mediocre 2.0

NOTHING!!!!!!

I booked a flight with them for the Thanksgiving holiday.... I was supposed to travel Wednesday 22 - Saturday to STLand back... I was IMMEDIATELY shocked by only being able to carry 1 personal item... When I found out exactly how small 45 centimeters was...I tried to cancel the trip & be refunded within 5-6 hours.... They told me to fill out a form & return it to them... THEY WERE SUPPOSED TO GET BACK TO ME WITHIN HOURS TO NOTIFY OF THE REFUND AMOUNT & NOT...I REPEAT NOT ACTUALLY CANCEL THE TRIP UNLESS I AGREED TO THE REFUND AMOUNT... I never heard anything from them! I just assumed it was just taking forever for them to approve my refund... Therefore...assuming that the flight was still booked...SINCE I never APPROVED ANY REFUND... I visited kiwi.com several times before the the trip & there was ABSOLUTELY NOTHING informing me of any trip cancellation... I went to the airport... Wasn’t able to board... Talked to kiwi.on the phone... Didn’t find out the trip was canceled until after the boarding was closed for that flight. Ceddrick Jonae bayfunk@yahoo.com 415-322-9515 kiwi.com booking number: 4709776 Reservation number (PNR): MEUOOZ E-ticket: 984-7069682518

Wed, Mar 21
PDX
IAD
4h 58m
Wed, Apr 4
IAD
PDX
5h 36m
Trip: 15 days
5.3OkayShow reviews
Overall 5.3 Okay
Based on 16 reviews
Overall
7.2
Boarding
7.3
Comfort
6.9
Crew
7.7
Entertainment
6.5
Food
6.4
EWR
DCA
Mediocre 3.3

We flew for only 45 minutes on a flight that had been scheduled for 1.3 hours.

The long delay seemed strange, as the plane had arrived from Costa Rica. Why would an airline schedule the same plane for an international flight and then a short hop from Newark to DC without adequate time in between? The departure gate at Newark was absolute chaos! Announcements were overlapping and not understandable. There was inadequate seating.

PDX
IAD
Okay 4.3

Iad to Boston on board attendants

Flight timing excellent

PDX
IAD
Excellent 8.0

Everything was great.

Food got a poor rating because there was no food service on either flight. You might think about creating another column with N/A (not applicable) as a heading. Entertainment got a mediocre rating simply because I didn't indulge. I might have been tempted more if I could have seen a price somewhere for the entertainment. I was very hesitant to just start swiping without knowing what I was getting myself in to.

PDX
IAD
Mediocre 2.0

The crew kept us informed of the delays

Sitting in the plane on the runway for an hour

IAD
GSP
Excellent 9.6

All of it was good.

Nothing.

Tue, Jan 9
PDX
IAD
9h 45m
Wed, Jan 17
IAD
PDX
19h 13m
Trip: 9 days
Overall 0.0 Poor
Based on 0 reviews
Sat, May 5
PDX
IAD
13h 17m
Wed, May 9
IAD
PDX
20h 44m
Trip: 5 days
5.6OkayShow reviews
Overall 5.6 Okay
Based on 33029 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
CMH
DEN
Excellent 10.0

Cheap; smooth landing

Screaming children; no leg room

MSP
RSW
Mediocre 3.0

Flight was smooth

Crew did basically nothing but talk among themselves. Didn’t pick up garbage till the last minute. Many passengers took up their own garbage.

TPA
MKE
Good 6.3

The toilet was broken. Hour delay

PHX
CVG
Good 7.0

I liked that the staff was friendly and the tickets were affordable

I didn’t like that there was no complimentary food or beverage options.

PVD
MCO
Mediocre 2.0

Seats are hard and uncomfortable. Very small drink tray and lights are not adjustable.

Wed, Feb 14
PDX
IAD
9h 51m
Tue, Feb 20
IAD
PDX
19h 22m
Trip: 7 days
Overall 0.0 Poor
Based on 0 reviews
Fri, Dec 15
PDX
IAD
7h 11m
Wed, Dec 20
IAD
PDX
7h 50m
Trip: 6 days
7.2GoodShow reviews
Overall 7.2 Good
Based on 25397 reviews
Overall
7.3
Boarding
7.5
Comfort
7.1
Crew
7.8
Entertainment
6.7
Food
6.6
ORD
LHR
Good 6.6

The flight itself was fine

I bought the tickets together, but was informed at the ticket counter that i had only purchased tickets—not boarding passes. Boarding passes needed to be purchased by paying extra if my husband and I wanted to sit next to each other. I tried calling the customer service line through kayak and waited on hold for a long time with no indication of wait time. When the gate agent arrived, we asked and were moved to seats next to each other right away. The ticket agent at initial check in was very abrasive and non-solution oriented. if what she was saying was true— that we only paid for tickets and had to pay extra for boarding passes together— that was never made clear during the booking process. It’s unlikely I’ll use kayak again unless I know for sure what I’m buying.

NRT
DFW
Mediocre 3.0

The calmness and assurance from the cockpit was promising

Flight attendants were not pleasant at all. They had know clue what to do during the flight emergency.

MBJ
PHL
Excellent 8.0

The cost for the internet was great

Hmm can’t think of anything at this time

FAT
LAX
Excellent 8.0

YYC is a nice airport. I have found I like Canadian's more then Americans when it come to air travel.

LAX is not a convenient airport at all.

LAX
OGG
Okay 5.3

First Class seating was of course better than economy.

Flight to Maui had no Mai Tai drinks available, no heated towels, no dessert, barely any service from the flight attendant(s).

Sat, Dec 9
PDX
IAD
9h 55m
Wed, Dec 13
IAD
PDX
19h 15m
Trip: 5 days
Overall 0.0 Poor
Based on 0 reviews
Fri, May 4
PDX
IAD
13h 17m
Sun, May 6
IAD
PDX
17h 36m
Trip: 3 days
5.6OkayShow reviews
Overall 5.6 Okay
Based on 33029 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
PHX
CVG
Good 7.0

I liked that the staff was friendly and the tickets were affordable

I didn’t like that there was no complimentary food or beverage options.

CMH
DEN
Excellent 10.0

Cheap; smooth landing

Screaming children; no leg room

CUN
DEN
Mediocre 3.6

On time

Seats have no padding, do not recline. Arm rests a joke.

MCO
DEN
Good 6.0

It was cheap

LAS
BNA
Good 7.6

Friendliness and efficiency.

No Wifi. Very little room for anything. Tiny tray tables.

Thu, Nov 30
PDX
IAD
6h 57m
Wed, Dec 6
IAD
PDX
19h 26m
Trip: 7 days
Overall 0.0 Poor
Based on 0 reviews
Wed, Apr 18
PDX
IAD
13h 16m
Tue, Apr 24
IAD
PDX
17h 42m
Trip: 7 days
5.6OkayShow reviews
Overall 5.6 Okay
Based on 33029 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
CMH
DEN
Excellent 10.0

Cheap; smooth landing

Screaming children; no leg room

PVD
MCO
Mediocre 2.0

Seats are hard and uncomfortable. Very small drink tray and lights are not adjustable.

DEN
RNO
Excellent 10.0

Very efficient boarding. Although I thought it strange at first that Frontier charges for overhead storage, the storage situation was roomy even with a full flight.

CUN
DEN
Mediocre 3.6

On time

Seats have no padding, do not recline. Arm rests a joke.

PHX
CVG
Good 7.0

I liked that the staff was friendly and the tickets were affordable

I didn’t like that there was no complimentary food or beverage options.

Thu, Feb 8
PDX
IAD
9h 22m
Tue, Feb 13
IAD
PDX
10h 28m
Trip: 6 days
Overall 0.0 Poor
Based on 0 reviews
Wed, Dec 27
PDX
IAD
4h 49m
Sat, Jan 6
IAD
PDX
5h 42m
Trip: 11 days
5.3OkayShow reviews
Overall 5.3 Okay
Based on 16 reviews
Overall
7.2
Boarding
7.3
Comfort
6.9
Crew
7.7
Entertainment
6.5
Food
6.4
PDX
EWR
Okay 4.0

I got there.

Virtually no service. Paying for checked baggage.

PDX
IAD
Mediocre 2.0

The crew kept us informed of the delays

Sitting in the plane on the runway for an hour

PDX
IAD
Excellent 8.0

Everything was great.

Food got a poor rating because there was no food service on either flight. You might think about creating another column with N/A (not applicable) as a heading. Entertainment got a mediocre rating simply because I didn't indulge. I might have been tempted more if I could have seen a price somewhere for the entertainment. I was very hesitant to just start swiping without knowing what I was getting myself in to.

PDX
IAD
Okay 4.3

The boarding was good and the flight went well.

The under seat power was difficult to find. More illumination around the outlets or a diagram showing where it is would be helpful as there is no room to look down and it's awkward to blindly pat around looking for a place to charge your phone.

PDX
IAD
Good 7.0

Staff was generally courteous and professional. Plane was clean.

No real complaints. It would be nice to be offered a more significant snack of meal for how much you pay for the flight.

Thu, Dec 14
PDX
IAD
7h 04m
Tue, Dec 26
IAD
PDX
7h 50m
Trip: 13 days
7.2GoodShow reviews
Overall 7.2 Good
Based on 25397 reviews
Overall
7.3
Boarding
7.5
Comfort
7.1
Crew
7.8
Entertainment
6.7
Food
6.6
PHL
CDG
Okay 5.0

The movie selection was great, the movie player barely worked.

The movie player/touch screen barely worked. The food is terrible.

PHL
CDG
Good 6.3

The actual flight was fine. But leading up to it not so much.

Please inform travelers that their passport must not expire within 3-6 months of their trip to France. I was unaware of this and was not allowed on our flight in Philadelphia because my passport would expire in two months. We lost an entire day in France because I had to go to the customs office the next morning and get an emergency passport. I travel frequently, but somehow was not aware of this rule. If I had known I would have fixed the issue months ago. Multiple people viewed my ticket and passport before arriving in Philadelphia and no one caught this error until right as I was boarding the flight to Paris.

ORD
LHR
Good 6.6

The flight itself was fine

I bought the tickets together, but was informed at the ticket counter that i had only purchased tickets—not boarding passes. Boarding passes needed to be purchased by paying extra if my husband and I wanted to sit next to each other. I tried calling the customer service line through kayak and waited on hold for a long time with no indication of wait time. When the gate agent arrived, we asked and were moved to seats next to each other right away. The ticket agent at initial check in was very abrasive and non-solution oriented. if what she was saying was true— that we only paid for tickets and had to pay extra for boarding passes together— that was never made clear during the booking process. It’s unlikely I’ll use kayak again unless I know for sure what I’m buying.

MBJ
PHL
Excellent 8.0

The cost for the internet was great

Hmm can’t think of anything at this time

DEN
ORD
Excellent 10.0

Comfortable seats, good legroom.

Not enough coffee for breakfast.

Sat, Mar 24
PDX
IAD
6h 43m
Sun, Apr 1
IAD
PDX
14h 45m
Trip: 9 days
5.3OkayShow reviews
Overall 5.3 Okay
Based on 16 reviews
Overall
7.2
Boarding
7.3
Comfort
6.9
Crew
7.7
Entertainment
6.5
Food
6.4
EWR
DCA
Mediocre 3.3

We flew for only 45 minutes on a flight that had been scheduled for 1.3 hours.

The long delay seemed strange, as the plane had arrived from Costa Rica. Why would an airline schedule the same plane for an international flight and then a short hop from Newark to DC without adequate time in between? The departure gate at Newark was absolute chaos! Announcements were overlapping and not understandable. There was inadequate seating.

SFO
SLC
Okay 5.0

the flight attendant had way too many announcements. Her script was too long.

PDX
IAD
Okay 4.3

Iad to Boston on board attendants

Flight timing excellent

IAD
GSP
Excellent 9.6

All of it was good.

Nothing.

PDX
IAD
Okay 4.3

The boarding was good and the flight went well.

The under seat power was difficult to find. More illumination around the outlets or a diagram showing where it is would be helpful as there is no room to look down and it's awkward to blindly pat around looking for a place to charge your phone.

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The fares displayed include all taxes and fees for economy class travel and were found by the provider in the last 72 hours. Seats are limited and may not be available on all flights and days. Fares are subject to change and may not be available on all flights or dates of travel. Some carriers charge additional fees for extra checked bags. Please check the carriers' sites.