Find Cheap Flights from Lisbon Humberto Delgado to Washington Dulles Intl (LIS - IAD)

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Looking for a cheap flight? 25% of our users found flights on this route for $752 or less.

FAQs for Booking Lisbon Humberto Delgado to Washington Dulles Intl Flights

How long does a flight from Lisbon Humberto Delgado to Washington Dulles Intl take?
An average nonstop flight takes 16h 15m, covering a distance of 3582 miles.
Which airlines provide the cheapest flights from Lisbon Humberto Delgado to Washington Dulles Intl?
In the past 3 days, the cheapest round-trip tickets were found on Air France ($470), KLM ($529) and Turkish Airlines ($608).
Do I need a passport to fly between Lisbon Humberto Delgado and Washington Dulles Intl?
Yes.
What’s the cheapest day of the week to fly Lisbon Humberto Delgado to Washington Dulles Intl?
For Lisbon Humberto Delgado to Washington Dulles Intl, Saturday is the cheapest day to fly on average and Monday is the most expensive. Flying from Washington Dulles Intl back to Lisbon Humberto Delgado, the best deals are generally found on Wednesday, with Friday being the most expensive.

Book cheap flights from Lisbon Humberto Delgado to Washington Dulles Intl (round-trip)

Airports
Origin
Lisbon
$470
only
$470
Destination
Washington
$470
only
$470
Sat, Jan 13
LIS
IAD
16h 15m
Sun, Jan 14
IAD
LIS
14h 25m
Trip: 2 days
7.5GoodShow reviews
Overall 7.5 Good
Based on 1878 reviews
Overall
7.7
Boarding
7.7
Comfort
7.3
Crew
8.2
Entertainment
6.8
Food
7.1
YYZ
CDG
Okay 4.6

Got pillow, blanket, headphone and eye cover

Older plane Very small tv screen Didn't get the bread roll with my dinner. Asked for it but she didn't bring it to me. No usb plug to charge

ORY
JFK
Excellent 8.0

it was cancelled so they got me on the next flight on Turkish

TLV
CDG
Excellent 10.0

Short, lots of leg space

CDG
ATL
Mediocre 3.6

It was on time

Food was AWFUL! Better to serve nothing

PTP
FDF
Good 6.5

The price 50€ cheaper than the other operators. Quick flight. Kind crew.

Lack organisation for checking. No difference if you have done the checking online. No breakfast on a 7am flight though included in the price.

Sat, Jan 13
LIS
IAD
18h 42m
Sun, Jan 14
IAD
LIS
24h 25m
Trip: 2 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 1486 reviews
Overall
8.0
Boarding
7.9
Comfort
7.7
Crew
8.4
Entertainment
7.1
Food
7.4
AMS
PRG
Excellent 10.0

Equally friendly crew and experience. It was complimented by the time we got to spend in the fantastic KLM lounge while we waited for the flight.

Nothing!

ATL
CLE
Okay 4.6

old plane, tight and uncomfortable

FCO
AMS
Excellent 10.0

Flight crew was pleasant and attentive. Seats were comfortable for economy as well. We were allowed to check in extra baggage for free at check in which really helped since we would be catching a connecting flight in Amsterdam

AMS
IAH
Good 7.3

Per usual, KLM can't seem to figure out the order of boarding the plane. Should be business - priority - everyone else. Instead they do priority first, and that's usually two-thirds of the passengers. Strange choice of in-flight movies; no accounting for taste, I guess.

LHR
AMS
Good 7.6

I was pleasantly surprised they had a snack service on such a short flight. The flight attendants were very friendly

Amsterdam customs is the most disorganized I have ever seen. With the number of tourists entering the country you would think they would have done something about it. There were only 2 customs agents!! One for all passports and 1 for all passports. We were in the customs hall longer than we were in flight!

Mon, Mar 5
LIS
IAD
32h 10m
Wed, Mar 14
IAD
LIS
35h 10m
Trip: 9 days
8.0ExcellentShow reviews
Overall 8.0 Excellent
Based on 16612 reviews
Overall
8.0
Boarding
7.9
Comfort
7.8
Crew
8.3
Entertainment
8.1
Food
8.0
IST
LHE
Good 7.6

Reaction of crew to passengers call needed improvement.

IST
YUL
Excellent 10.0

Good. Staff were courteous

TIA
IST
Excellent 10.0

Good service and very smooth flight

IST
TXL
Good 7.6

Polite and efficient crew

Crowded conditions. Passengers with too many carry-on items. Passengers removing shoes AND SOCKS for entire flight (unsanitary!). Dirty restrooms.

BOS
IST
Mediocre 2.0

On the registration checking in in Boston Logan Airport they did not tell me that I as an american citizen must have a visa. After arriving to Turkey they refused me to get in and sent me back to the states. I want refund all my expenses on this trip.

Sun, Dec 24
LIS
IAD
31h 50m
Mon, Jan 8
IAD
LIS
32h 20m
Trip: 16 days
6.5GoodShow reviews
Overall 6.5 Good
Based on 1426 reviews
Overall
6.6
Boarding
6.6
Comfort
6.7
Crew
6.9
Entertainment
6.1
Food
6.3
CMN
JFK
Excellent 8.0

Food

BCN
CMN
Okay 5.6

Ground agent at the counter was polite and very good customer service.

The TV monitor needs to be fixed on what was shown - terrible reception.

CMN
LIS
Mediocre 2.0

They cancelled our reservation the day before our flight for no reason, without notice, and didn't explain why. We had to fight literally an hour before take off to get our seats back. They didn't extend an apology or even an explanation as to why the airline simply cancelled our reservations which we had paid for over an month in advance. During all 4 legs of our trip (N.Y. to Casablanca; Marakech to Fez; Casablanca to Lisbon; and Lisbon to N.Y.) customer service was extremely slow and poor, many of the staff members seemed to not like their job because of how unpleasant they were. The breakfast is three different types of carbs and no nutritional value. I will never fly the so-called 'Royal' air Maroc again. Very unprofessional staff.

LIS
CMN
Good 6.6

Delayed 2 hours.

JFK
CMN
Okay 4.3

My bags where opened and my items where stolen from my luggages

Thu, Feb 1
LIS
IAD
32h 10m
Fri, Feb 9
IAD
LIS
35h 10m
Trip: 9 days
8.0ExcellentShow reviews
Overall 8.0 Excellent
Based on 16612 reviews
Overall
8.0
Boarding
7.9
Comfort
7.8
Crew
8.3
Entertainment
8.1
Food
8.0
TIA
IST
Excellent 10.0

Comfortable, great food, awesome crew! I love that they have a great variety of entertainment material.

IST
IAD
Excellent 9.6

Very grateful our flight wasn't packed- this allowed us to lay down a little and sleep. The attendants were very nice and helpful.

IST
TXL
Good 7.6

Polite and efficient crew

Crowded conditions. Passengers with too many carry-on items. Passengers removing shoes AND SOCKS for entire flight (unsanitary!). Dirty restrooms.

TIA
IST
Excellent 10.0

Good service and very smooth flight

IST
JFK
Excellent 10.0

Comfortable, great food, awesome crew! I love that they have a great variety of entertainment material.

Thu, Dec 7
LIS
IAD
36h 50m
Wed, Jan 10
IAD
LIS
35h 10m
Trip: 35 days
8.0ExcellentShow reviews
Overall 8.0 Excellent
Based on 16612 reviews
Overall
8.0
Boarding
7.9
Comfort
7.8
Crew
8.3
Entertainment
8.1
Food
8.0
DEL
IST
Excellent 10.0

Superb service. Good food. Organized on boarding. Not overbooked. New planes. USB available for charging devices.

Long layover in Istanbul.

IST
IAD
Excellent 9.6

Very grateful our flight wasn't packed- this allowed us to lay down a little and sleep. The attendants were very nice and helpful.

IST
OTP
Excellent 10.0

Awesome

EBB
IST
Excellent 10.0

Late flight While in transit. They wouldn't pay for my meal in Istanbul because my overlay was 3 hrs

TIA
IST
Excellent 10.0

Comfortable, great food, awesome crew! I love that they have a great variety of entertainment material.

Sat, May 5
LIS
IAD
36h 40m
Sat, May 12
IAD
LIS
34h 50m
Trip: 8 days
8.0ExcellentShow reviews
Overall 8.0 Excellent
Based on 16612 reviews
Overall
8.0
Boarding
7.9
Comfort
7.8
Crew
8.3
Entertainment
8.1
Food
8.0
IST
JFK
Excellent 10.0

Comfortable, great food, awesome crew! I love that they have a great variety of entertainment material.

TIA
IST
Excellent 10.0

Comfortable, great food, awesome crew! I love that they have a great variety of entertainment material.

IST
YUL
Excellent 10.0

Good. Staff were courteous

IST
LHE
Good 7.6

Reaction of crew to passengers call needed improvement.

IST
OTP
Excellent 10.0

Awesome

Mon, May 28
LIS
IAD
36h 40m
Mon, Jun 4
IAD
LIS
34h 50m
Trip: 8 days
8.0ExcellentShow reviews
Overall 8.0 Excellent
Based on 16612 reviews
Overall
8.0
Boarding
7.9
Comfort
7.8
Crew
8.3
Entertainment
8.1
Food
8.0
IST
TXL
Good 7.6

Polite and efficient crew

Crowded conditions. Passengers with too many carry-on items. Passengers removing shoes AND SOCKS for entire flight (unsanitary!). Dirty restrooms.

IST
YUL
Excellent 10.0

Good. Staff were courteous

BUD
IST
Mediocre 3.3

They stole Items from my bag

IST
OTP
Excellent 10.0

Awesome

BOS
IST
Mediocre 2.0

On the registration checking in in Boston Logan Airport they did not tell me that I as an american citizen must have a visa. After arriving to Turkey they refused me to get in and sent me back to the states. I want refund all my expenses on this trip.

*
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