Travelers have found it’s best to book a flight 30 days in advance to save up to 22% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 30 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from Portugal to Washington, D.C. Dulles Intl Airport 1-2 weeks in advance for as low as $632, or $644 for flights within the next 24 hours.
The best pricing can be found in the month of November. Prices to Washington, D.C. Dulles Intl Airport from Portugal average $688. You can even find prices in November for less than $688, as users have found deals to Washington, D.C. Dulles Intl Airport from as low as $483. The month of July appears to be one of the more expensive times to travel to Washington, D.C. Dulles Intl Airport from Portugal. Flying in the targeted month can save you up to 38%.
When flying from Portugal to Washington, D.C. Dulles Intl Airport, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.
Fly from
Fly to
Budget
$492 - $596
Route
Depart
Return
Price
PortoWashington, D.C. Dulles Intl
OPO - IAD
OPOIAD
Porto
Thu 9/5
1 stop18h 20m
Washington, D.C. Dulles Intl
Sat 11/30
1 stop23h 30m
Lisbon Humberto DelgadoWashington, D.C. Dulles Intl
LIS - IAD
LISIAD
Lisbon Humberto Delgado
Thu 11/7
1 stop29h 35m
Washington, D.C. Dulles Intl
Wed 11/20
1 stop10h 05m
Lisbon Humberto DelgadoWashington, D.C. Dulles Intl
LIS - IAD
LISIAD
Lisbon Humberto Delgado
Thu 9/5
1 stop11h 45m
Washington, D.C. Dulles Intl
Mon 9/9
1 stop24h 20m
Lisbon Humberto DelgadoWashington, D.C. Dulles Intl
LIS - IAD
LISIAD
Lisbon Humberto Delgado
Thu 9/26
2 stops17h 30m
Washington, D.C. Dulles Intl
Mon 9/30
1 stop15h 25m
Lisbon Humberto DelgadoWashington, D.C. Dulles Intl
LIS - IAD
LISIAD
Lisbon Humberto Delgado
Thu 11/7
1 stop18h 55m
Washington, D.C. Dulles Intl
Tue 11/19
Nonstop7h 20m
Lisbon Humberto DelgadoWashington, D.C. Dulles Intl
LIS - IAD
LISIAD
Lisbon Humberto Delgado
Mon 9/9
1 stop18h 15m
Washington, D.C. Dulles Intl
Mon 9/16
1 stop19h 30m
Lisbon Humberto DelgadoWashington, D.C. Dulles Intl
LIS - IAD
LISIAD
Lisbon Humberto Delgado
Thu 9/5
Nonstop8h 25m
Washington, D.C. Dulles Intl
Mon 9/9
Nonstop7h 15m
PortoWashington, D.C. Dulles Intl
OPO - IAD
OPOIAD
Porto
Thu 9/19
1 stop25h 55m
Washington, D.C. Dulles Intl
Thu 9/26
1 stop30h 10m
Lisbon Humberto DelgadoWashington, D.C. Dulles Intl
LIS - IAD
LISIAD
Lisbon Humberto Delgado
Thu 9/5
2 stops29h 10m
Washington, D.C. Dulles Intl
Mon 9/9
2 stops23h 05m
No data available for this route at this time. Please check back soon.
Food
Overall
Boarding
Crew
Comfort
Entertainment
Reviews
When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.
Food
Overall
Boarding
Crew
Comfort
Entertainment
Reviews
When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.
Food
Overall
Boarding
Crew
Comfort
Entertainment
Reviews
When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.
Food
Overall
Boarding
Crew
Comfort
Entertainment
Reviews
When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.
Food
Overall
Boarding
Crew
Comfort
Entertainment
Reviews
When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.
Food
Overall
Boarding
Crew
Comfort
Entertainment
Reviews
When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.
Airline | Cheapest | Average | Flexibility | On-time |
---|---|---|---|---|
Air France | Cheapest$479 | Average$617 | FlexibilityNo cancel fee | On-time77% |
British Airways | Cheapest$479 | Average$521 | FlexibilityNo cancel fee | On-time70% |
KLM | Cheapest$488 | Average$540 | FlexibilityNo cancel fee | On-time75% |
TAP AIR PORTUGAL | Cheapest$501 | Average$707 | FlexibilityNo cancel fee | On-timeN/A |
American Airlines | Cheapest$546 | Average$660 | FlexibilityNo cancel fee | On-time71% |
United Airlines | Cheapest$567 | Average$819 | FlexibilityNo cancel fee | On-time69% |
Lufthansa | Cheapest$626 | Average$779 | FlexibilityNo cancel fee | On-time76% |
0%of flight departures | Early morningMidnight to 6 am |
---|---|
85%of flight departures | Morning6 am to noon |
15%of flight departures | AfternoonNoon to 6 pm |
0%of flight departures | Evening6 pm to midnight |