Find Cheap Flights from Washington Dulles Intl to Porto (IAD - OPO)

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Looking for a cheap flight? 25% of our users found flights on this route for $989 or less.

FAQs for Booking Washington Dulles Intl to Porto Flights

How long does a flight from Washington Dulles Intl to Porto take?
An average nonstop flight takes 13h 40m, covering a distance of 3542 miles.
Which airlines provide the cheapest flights from Washington Dulles Intl to Porto?
In the past 3 days, the cheapest round-trip tickets were found on Multiple Airlines ($691), Turkish Airlines ($814) and KLM ($923).
Do I need a passport to fly between Washington Dulles Intl and Porto?
Yes.

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

Airports
Origin
Washington
$691
only
$691
Destination
Porto
$691
only
$691
Wed, Apr 11
IAD
OPO
26h 35m
Sun, Apr 29
OPO
IAD
36h 51m
Trip: 19 days
Overall 0.0 Poor
Based on 0 reviews
Sun, Apr 1
IAD
OPO
31h 20m
Tue, May 1
OPO
IAD
36h 10m
Trip: 31 days
8.0ExcellentShow reviews
Overall 8.0 Excellent
Based on 17991 reviews
Overall
8.0
Boarding
7.9
Comfort
7.8
Crew
8.3
Entertainment
8.1
Food
7.9
AYT
IST
Excellent 10.0

Everything was ok. I will be happy to fly again with With Terkish Airlines

IST
ATL
Okay 5.3

The inflight entertainment.

Boarding and check in makes me want to never fly with Turkish air again. Worst customer service ever!!!

IST
ROV
Excellent 10.0

Every thing. Food travel and crew

SFO
IST
Good 7.6

Overall experience was good.

In comfort leg space can improve. Entrainment: in TV Series are random, they should be season wise placed so you cannot see the series in a link.

JFK
IST
Excellent 9.0

Cleanliness of lavatories throughout the flight. Friendly staff. Great gluten free food.

Lack of room between rows and the narrowness of aisles

Tue, Mar 20
IAD
OPO
13h 40m
Thu, Mar 29
OPO
IAD
15h 40m
Trip: 10 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 1732 reviews
Overall
8.0
Boarding
8.0
Comfort
7.7
Crew
8.5
Entertainment
7.1
Food
7.4
LAX
AMS
Mediocre 2.0

My bagage broke

I paid extra fee for extra bagage which was tv and i paid insurance my tv broke and no one responces for it

AMS
HUY
Excellent 8.6

The last two times we connected in Amsterdam to Humberside our luggage was delayed. This time it wasn’t. The simple things give the greatest satisfaction

DMM
AMS
Okay 5.6

Tiny old cramped plane.

AMS
CPT
Good 6.3

Excellent experience with the cabin crew.

Seats on the 777 were too narrow. This 777 had a 3-4-3 seating arraignment, it would have been better with a 3-3-3, similar to a 787 configuration. With the current layout, even with an aisle seat, I was sitting in the aisle. And I am not a large person! The flight was full, so use the 787 and two daily non-stops. For a twelve hour flight, the food was only Okay, could have been better and with a better selection. Meal timing was poor.

AMS
NCL
Good 7.6

Pretty basic one hour flight so there's not much to complain about or praise about. I got some sleep which was good.

The crew had their general Dutch aloofness on form. Chatted to one of the stewardesses in Dutch up until she saw I had a British passport then she decided she could only speak English to me.

Wed, Mar 14
IAD
OPO
18h 01m
Thu, Mar 15
OPO
IAD
13h 51m
Trip: 2 days
7.3GoodShow reviews
Overall 7.3 Good
Based on 3212 reviews
Overall
7.5
Boarding
7.4
Comfort
7.3
Crew
8.0
Entertainment
6.8
Food
7.1
TXL
LIS
Okay 4.0

No usb Mediocre to disgusting food

LIS
MIA
Excellent 8.0

Excellent Service - pleasant flight - comfortable seats

Poor entertainment system

BLQ
LIS
Okay 5.0

It was fine, on time. I didn't have a checked bag or I would have waited in line at check-in for at least 30-45 minutes. Online check-in was relatively easy and digital boarding pass was convenient.

Seats are small, if you need to check a bag it will take forever. The underseat area is much.smaller than other airlines. The flight was very delayed because of some discrepancy regarding the number of passengers. Nothing seemed to be wrong but it took forever!

BCN
LIS
Mediocre 2.0

Nothing

They gave someone else seats I had reserved for 6 months and that I had paid extra for. I will take that up with the company forewidth

LIS
SSA
Okay 4.0

The food was not available for the business class passengers and we had to take it from economy.

Fri, May 11
IAD
OPO
27h 00m
Thu, May 31
OPO
IAD
32h 46m
Trip: 21 days
Overall 0.0 Poor
Based on 0 reviews
Wed, Apr 4
IAD
OPO
31h 20m
Thu, Apr 12
OPO
IAD
32h 55m
Trip: 9 days
8.0ExcellentShow reviews
Overall 8.0 Excellent
Based on 17991 reviews
Overall
8.0
Boarding
7.9
Comfort
7.8
Crew
8.3
Entertainment
8.1
Food
7.9
JFK
IST
Excellent 9.0

Cleanliness of lavatories throughout the flight. Friendly staff. Great gluten free food.

Lack of room between rows and the narrowness of aisles

IST
ATL
Okay 5.3

The inflight entertainment.

Boarding and check in makes me want to never fly with Turkish air again. Worst customer service ever!!!

IST
SIN
Excellent 9.3

patience n attitude of crews

LAX
IST
Excellent 10.0

Modern B777 fleet, on t8me departures, good inflight passenger service,

IST
MIA
Excellent 10.0

Always excellent

Tue, Apr 10
IAD
OPO
34h 35m
Sun, Apr 29
OPO
IAD
32h 55m
Trip: 20 days
8.0ExcellentShow reviews
Overall 8.0 Excellent
Based on 17991 reviews
Overall
8.0
Boarding
7.9
Comfort
7.8
Crew
8.3
Entertainment
8.1
Food
7.9
SKP
IST
Excellent 10.0

W2

SFO
IST
Good 7.6

Overall experience was good.

In comfort leg space can improve. Entrainment: in TV Series are random, they should be season wise placed so you cannot see the series in a link.

IST
MIA
Excellent 10.0

Always excellent

IST
ROV
Excellent 10.0

Every thing. Food travel and crew

AYT
IST
Excellent 10.0

Everything was ok. I will be happy to fly again with With Terkish Airlines

Tue, Mar 20
IAD
OPO
13h 40m
Tue, Mar 27
OPO
IAD
19h 11m
Trip: 8 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 1732 reviews
Overall
8.0
Boarding
8.0
Comfort
7.7
Crew
8.5
Entertainment
7.1
Food
7.4
IAD
AMS
Good 7.3

787 is a great airplane. The 3-3-3 seat configuration leaves enough seat width to be just comfortable in coach.

DMM
AMS
Okay 5.6

Tiny old cramped plane.

BCN
AMS
Excellent 9.3

The food was excelent

I have to pay to pay a little more confort

AMS
MAN
Good 7.0

The flight attendants could not do enough for you.

Business class was pretty empty but again I was not allowed to change my seat selection online. Pathetic check-in.

LAX
AMS
Mediocre 2.0

My bagage broke

I paid extra fee for extra bagage which was tv and i paid insurance my tv broke and no one responces for it

Mon, Mar 12
IAD
OPO
18h 01m
Mon, Mar 19
OPO
IAD
14h 51m
Trip: 8 days
7.3GoodShow reviews
Overall 7.3 Good
Based on 3212 reviews
Overall
7.5
Boarding
7.4
Comfort
7.3
Crew
8.0
Entertainment
6.8
Food
7.1
BLQ
LIS
Okay 5.0

It was fine, on time. I didn't have a checked bag or I would have waited in line at check-in for at least 30-45 minutes. Online check-in was relatively easy and digital boarding pass was convenient.

Seats are small, if you need to check a bag it will take forever. The underseat area is much.smaller than other airlines. The flight was very delayed because of some discrepancy regarding the number of passengers. Nothing seemed to be wrong but it took forever!

BCN
LIS
Mediocre 2.0

Nothing

They gave someone else seats I had reserved for 6 months and that I had paid extra for. I will take that up with the company forewidth

JFK
LIS
Okay 5.0

CRew was rude. Food was poor.checked baggage fees exhorbitant

ZRH
LIS
Good 6.6

Uma antiga queixa minha era o tratamento dispensado pela tripulação da TAP aos passageiros. Muitas vezes faziam o seu serviço sem paciência e até mesmo de forma rude. Nos meus últimos 3 vôos pela TAP, a tripulação vem se mostrando muito mais cordial e até mesmo divertida, sendo bastante simpática. Ainda pode melhorar? Claro que sim, mas agora não tenho mais "medo" de pedir um copo d'água a mais para os comissários.

Sei que a tendência dos vôos low cost é não oferecer muito conforto aos passageiros, mas o espaço entre as cadeiras está ridículo até mesmo para pessoas com estatura mediana como eu (1,80 m). A poltrona, apesar de não reclinar, era até confortável, mas os meu joelhos ficaram espremidos pela poltrona da frente. Sem contar que, para um vôo de 3h, deveria ser disponibilizado algum entretenimento, mesmo que através do wifi (como já fazem as cias. brasileiras - se no Brasil já fazem, qualquer país do mundo é capaz de fazer!)

JFK
LIS
Mediocre 3.6

TAP seems to have trouble landing at its own global hub. Three hours wasted in Porto before the traffic over LIS had cleared up. First time TAP, last time TAP.

Wed, Apr 11
IAD
OPO
31h 20m
Thu, Apr 26
OPO
IAD
32h 55m
Trip: 16 days
8.0ExcellentShow reviews
Overall 8.0 Excellent
Based on 17991 reviews
Overall
8.0
Boarding
7.9
Comfort
7.8
Crew
8.3
Entertainment
8.1
Food
7.9
IST
NKC
Good 6.0

Boarding process chaotic due to conflicting flow of movement in the aisle. People don't like to step aside to let others pass. Additionally some of carry on luggage was oversized and should have been checked into the cargo hold. When flight landed in Nouakchott an announcement should have been made so that the Dakar passengers allowed the NKC ones to deplane, AND the NKC passengers should have been advised to have their boarding passes out for inspection. This caused a backlog in the jetbridge. AND no announcement regarding local time.

IST
ROV
Excellent 10.0

Every thing. Food travel and crew

IST
SIN
Excellent 9.3

patience n attitude of crews

SKP
IST
Excellent 10.0

W2

OTP
IST
Excellent 10.0

Always excellent

Mon, Apr 16
IAD
OPO
21h 45m
Thu, Apr 19
OPO
IAD
13h 51m
Trip: 4 days
Overall 0.0 Poor
Based on 0 reviews
Tue, Mar 13
IAD
OPO
24h 24m
Thu, Mar 15
OPO
IAD
15h 11m
Trip: 3 days
7.3GoodShow reviews
Overall 7.3 Good
Based on 3212 reviews
Overall
7.5
Boarding
7.4
Comfort
7.3
Crew
8.0
Entertainment
6.8
Food
7.1
TXL
LIS
Okay 4.0

No usb Mediocre to disgusting food

LIS
SSA
Okay 4.0

The food was not available for the business class passengers and we had to take it from economy.

EWR
LIS
Excellent 8.6

They solved the problem of my sit. But i almost have a hurt attack

When I get to check my tickets they told me that I was in stand by. I have to fight to get my sit.

JFK
LIS
Mediocre 3.6

TAP seems to have trouble landing at its own global hub. Three hours wasted in Porto before the traffic over LIS had cleared up. First time TAP, last time TAP.

LIS
MIA
Excellent 8.0

Excellent Service - pleasant flight - comfortable seats

Poor entertainment system

Thu, Apr 19
IAD
OPO
34h 35m
Thu, Apr 26
OPO
IAD
32h 55m
Trip: 8 days
8.0ExcellentShow reviews
Overall 8.0 Excellent
Based on 17991 reviews
Overall
8.0
Boarding
7.9
Comfort
7.8
Crew
8.3
Entertainment
8.1
Food
7.9
IAD
IST
Good 6.0

Late into the flight there appeared to be a medical emergency taking place just a few rows ahead of me. No announcement was made; it was as though we were expected to ignore the situation. But with the lights in the cabin turned on, a small crowd gathered, and the passenger being vocal in his distress .. . a brief announcement would have been nice: Situation under control, no need to worry, flight will continue as scheduled. The passenger had a relapse a few hours later - again no acknowledgement from the crew to reassure those of us who could hear his cries of distress.

SFO
IST
Good 7.6

Overall experience was good.

In comfort leg space can improve. Entrainment: in TV Series are random, they should be season wise placed so you cannot see the series in a link.

OTP
IST
Excellent 10.0

Always excellent

AYT
IST
Excellent 10.0

Everything was ok. I will be happy to fly again with With Terkish Airlines

JFK
IST
Excellent 9.0

Cleanliness of lavatories throughout the flight. Friendly staff. Great gluten free food.

Lack of room between rows and the narrowness of aisles

Wed, Apr 18
IAD
OPO
21h 45m
Fri, Apr 27
OPO
IAD
16h 51m
Trip: 10 days
Overall 0.0 Poor
Based on 0 reviews
Sun, Apr 22
IAD
OPO
31h 20m
Wed, May 2
OPO
IAD
36h 10m
Trip: 11 days
8.0ExcellentShow reviews
Overall 8.0 Excellent
Based on 17991 reviews
Overall
8.0
Boarding
7.9
Comfort
7.8
Crew
8.3
Entertainment
8.1
Food
7.9
SKP
IST
Excellent 10.0

W2

JFK
IST
Excellent 9.0

Cleanliness of lavatories throughout the flight. Friendly staff. Great gluten free food.

Lack of room between rows and the narrowness of aisles

IST
NKC
Good 6.0

Boarding process chaotic due to conflicting flow of movement in the aisle. People don't like to step aside to let others pass. Additionally some of carry on luggage was oversized and should have been checked into the cargo hold. When flight landed in Nouakchott an announcement should have been made so that the Dakar passengers allowed the NKC ones to deplane, AND the NKC passengers should have been advised to have their boarding passes out for inspection. This caused a backlog in the jetbridge. AND no announcement regarding local time.

IST
SIN
Excellent 9.3

patience n attitude of crews

IAD
IST
Good 6.0

Late into the flight there appeared to be a medical emergency taking place just a few rows ahead of me. No announcement was made; it was as though we were expected to ignore the situation. But with the lights in the cabin turned on, a small crowd gathered, and the passenger being vocal in his distress .. . a brief announcement would have been nice: Situation under control, no need to worry, flight will continue as scheduled. The passenger had a relapse a few hours later - again no acknowledgement from the crew to reassure those of us who could hear his cries of distress.

Tue, May 1
IAD
OPO
17h 00m
Thu, May 10
OPO
IAD
14h 25m
$1030
Trip: 10 days
7.3GoodShow reviews
Overall 7.3 Good
Based on 3212 reviews
Overall
7.5
Boarding
7.4
Comfort
7.3
Crew
8.0
Entertainment
6.8
Food
7.1
MIA
LIS
Okay 4.0

Al llegar al counter me dicen que la maleta no está incluida, yo quisiera saber quien viaja sin maleta? Así que tuve que pagar adicional $90 por una sola maleta y tengo que pagar también al regreso, me siento robado y estafado por Tap Portugal

TXL
LIS
Okay 4.0

No usb Mediocre to disgusting food

LIS
MUC
Okay 4.0

Next-day connecting flight after a delayed arrival and involuntary stopover in Porto due to air traffic over LIS. This time around, the flight took off an hour late because of [guess...] air traffic. Well, my dear LIS management, that's how you sink your national carrier.

ZRH
LIS
Good 6.6

Uma antiga queixa minha era o tratamento dispensado pela tripulação da TAP aos passageiros. Muitas vezes faziam o seu serviço sem paciência e até mesmo de forma rude. Nos meus últimos 3 vôos pela TAP, a tripulação vem se mostrando muito mais cordial e até mesmo divertida, sendo bastante simpática. Ainda pode melhorar? Claro que sim, mas agora não tenho mais "medo" de pedir um copo d'água a mais para os comissários.

Sei que a tendência dos vôos low cost é não oferecer muito conforto aos passageiros, mas o espaço entre as cadeiras está ridículo até mesmo para pessoas com estatura mediana como eu (1,80 m). A poltrona, apesar de não reclinar, era até confortável, mas os meu joelhos ficaram espremidos pela poltrona da frente. Sem contar que, para um vôo de 3h, deveria ser disponibilizado algum entretenimento, mesmo que através do wifi (como já fazem as cias. brasileiras - se no Brasil já fazem, qualquer país do mundo é capaz de fazer!)

EWR
LIS
Excellent 8.6

They solved the problem of my sit. But i almost have a hurt attack

When I get to check my tickets they told me that I was in stand by. I have to fight to get my sit.

Mon, Apr 9
IAD
OPO
18h 25m
Wed, May 2
OPO
IAD
15h 25m
Trip: 24 days
Overall 0.0 Poor
Based on 0 reviews
Mon, Apr 23
IAD
OPO
31h 20m
Wed, May 2
OPO
IAD
36h 10m
Trip: 10 days
8.0ExcellentShow reviews
Overall 8.0 Excellent
Based on 17991 reviews
Overall
8.0
Boarding
7.9
Comfort
7.8
Crew
8.3
Entertainment
8.1
Food
7.9
OTP
IST
Excellent 10.0

Always excellent

SKP
IST
Excellent 10.0

W2

IST
NKC
Good 6.0

Boarding process chaotic due to conflicting flow of movement in the aisle. People don't like to step aside to let others pass. Additionally some of carry on luggage was oversized and should have been checked into the cargo hold. When flight landed in Nouakchott an announcement should have been made so that the Dakar passengers allowed the NKC ones to deplane, AND the NKC passengers should have been advised to have their boarding passes out for inspection. This caused a backlog in the jetbridge. AND no announcement regarding local time.

IAD
IST
Good 6.0

Late into the flight there appeared to be a medical emergency taking place just a few rows ahead of me. No announcement was made; it was as though we were expected to ignore the situation. But with the lights in the cabin turned on, a small crowd gathered, and the passenger being vocal in his distress .. . a brief announcement would have been nice: Situation under control, no need to worry, flight will continue as scheduled. The passenger had a relapse a few hours later - again no acknowledgement from the crew to reassure those of us who could hear his cries of distress.

AYT
IST
Excellent 10.0

Everything was ok. I will be happy to fly again with With Terkish Airlines

Sat, Apr 21
IAD
OPO
20h 24m
Tue, May 1
OPO
IAD
16h 51m
$1045
Trip: 11 days
7.3GoodShow reviews
Overall 7.3 Good
Based on 3212 reviews
Overall
7.5
Boarding
7.4
Comfort
7.3
Crew
8.0
Entertainment
6.8
Food
7.1
BLQ
LIS
Okay 5.0

It was fine, on time. I didn't have a checked bag or I would have waited in line at check-in for at least 30-45 minutes. Online check-in was relatively easy and digital boarding pass was convenient.

Seats are small, if you need to check a bag it will take forever. The underseat area is much.smaller than other airlines. The flight was very delayed because of some discrepancy regarding the number of passengers. Nothing seemed to be wrong but it took forever!

ZRH
LIS
Good 6.6

Uma antiga queixa minha era o tratamento dispensado pela tripulação da TAP aos passageiros. Muitas vezes faziam o seu serviço sem paciência e até mesmo de forma rude. Nos meus últimos 3 vôos pela TAP, a tripulação vem se mostrando muito mais cordial e até mesmo divertida, sendo bastante simpática. Ainda pode melhorar? Claro que sim, mas agora não tenho mais "medo" de pedir um copo d'água a mais para os comissários.

Sei que a tendência dos vôos low cost é não oferecer muito conforto aos passageiros, mas o espaço entre as cadeiras está ridículo até mesmo para pessoas com estatura mediana como eu (1,80 m). A poltrona, apesar de não reclinar, era até confortável, mas os meu joelhos ficaram espremidos pela poltrona da frente. Sem contar que, para um vôo de 3h, deveria ser disponibilizado algum entretenimento, mesmo que através do wifi (como já fazem as cias. brasileiras - se no Brasil já fazem, qualquer país do mundo é capaz de fazer!)

JFK
LIS
Mediocre 3.6

TAP seems to have trouble landing at its own global hub. Three hours wasted in Porto before the traffic over LIS had cleared up. First time TAP, last time TAP.

JFK
LIS
Okay 5.0

CRew was rude. Food was poor.checked baggage fees exhorbitant

BCN
LIS
Mediocre 2.0

Nothing

They gave someone else seats I had reserved for 6 months and that I had paid extra for. I will take that up with the company forewidth

Wed, Mar 14
IAD
OPO
18h 01m
Fri, Mar 16
OPO
IAD
11h 35m
Trip: 3 days
Overall 0.0 Poor
Based on 0 reviews

Washington Dulles Intl to Porto Flight Information

Flights Arrive in Porto
Flights Depart from Washington Dulles Intl
Flight Price $691
Distance 3542 miles
Airlines Turkish Airlines, KLM, TAP AIR PORTUGAL
*
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