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Humberto Delgado Airport to Dulles International Airport flight
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Humberto Delgado Airport to Dulles International Airport Flights Info

Cheapest one-way
€337
Iberia Iberia 14h 50m · 1 stop Fri, Nov 20
Book Now
Cheapest return
€510
American Airlines American Airlines 14h 50m · 2 stops Thu, Dec 3 - Sun, Dec 6
Book Now
Best time to book
October
Cheapest
Recommended airlines
Iberia IberiaCheapest· From €337 TAP Air Portugal TAP Air PortugalMost booked

Explore the cheapest one-way and round-trip flights from Humberto Delgado Airport to Dulles International Airport over the next 90 days, with one-way fares from €337 and round-trip from €510. Based on Trip.com's latest 7-day flight data.

    • Cheapest nonstop
      LIS 10:55
      8h 50m
      Direct
      IAD 14:45
      Lisbon - Washington D.C. | Thu, Dec 3 | TAP Air Portugal
      IAD 22:30
      7h 10m
      Direct
      LIS 10:40
      Washington D.C. - Lisbon | Tue, Dec 8 | TAP Air Portugal
      €554 €685
      19% off
      19% off
      €685 €554
    • LIS 11:25
      8h 50m
      Direct
      IAD 15:15
      Lisbon - Washington D.C. | Sat, Dec 5 | TAP Air Portugal
      IAD 17:25
      7h 10m
      Direct
      LIS 05:35
      Washington D.C. - Lisbon | Thu, Dec 10 | TAP Air Portugal
      €561 €685
      18% off
      18% off
      €685 €561
    • LIS 06:30
      14h 50m
      1 stop
      IAD 16:20
      Lisbon - Washington D.C. | Thu, Dec 3 | American Airlines
      IAD 18:05
      13h
      1 stop
      LIS 12:05
      Washington D.C. - Lisbon | Sun, Dec 6 | American Airlines
      €510 €685
      26% off
      26% off
      €685 €510
    • LIS 06:30
      14h 50m
      1 stop
      IAD 16:20
      Lisbon - Washington D.C. | Mon, Nov 23 | American Airlines
      IAD 21:45
      12h 10m
      1 stop
      LIS 14:55
      Washington D.C. - Lisbon | Mon, Nov 30 | American Airlines
      €514
      25% off
      €685 €514
    • LIS 06:30
      14h 50m
      1 stop
      IAD 16:20
      Lisbon - Washington D.C. | Tue, Dec 8 | American Airlines
      IAD 18:05
      13h
      1 stop
      LIS 12:05
      Washington D.C. - Lisbon | Tue, Dec 15 | American Airlines
      €519
      24% off
      €685 €519
    • LIS 08:20
      13h
      1 stop
      IAD 16:20
      Lisbon - Washington D.C. | Mon, Nov 16 | American Airlines
      IAD 18:05
      13h
      1 stop
      LIS 12:05
      Washington D.C. - Lisbon | Sun, Nov 22 | American Airlines
      €527
      23% off
      €685 €527
    • LIS 06:30
      14h 50m
      1 stop
      IAD 16:20
      Lisbon - Washington D.C. | Thu, Nov 26 | American Airlines
      IAD 18:05
      13h
      1 stop
      LIS 12:05
      Washington D.C. - Lisbon | Sun, Nov 29 | American Airlines
      €530
      23% off
      €685 €530
    • LIS 06:30
      14h 50m
      1 stop
      IAD 16:20
      Lisbon - Washington D.C. | Fri, Dec 4 | American Airlines
      IAD 18:05
      15h 50m
      1 stop
      LIS 14:55
      Washington D.C. - Lisbon | Mon, Dec 7 | American Airlines
      €537
      22% off
      €685 €537
    • LIS 06:30
      14h 50m
      1 stop
      IAD 16:20
      Lisbon - Washington D.C. | Fri, Nov 20 | American Airlines
      DCA 13:44
      14h 21m
      1 stop
      LIS 09:05
      Washington D.C. - Lisbon | Wed, Nov 25 | American Airlines
      €538
      21% off
      €685 €538
    • LIS 13:00
      17h 25m
      1 stop
      WAS 14:00
      Lisbon - Washington D.C. | Tue, Nov 17 | Normal Airline
      WAS 15:00
      6h
      Direct
      LIS 16:00
      Washington D.C. - Lisbon | Thu, Nov 19 | Normal Airline
      Find more flights
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    • Cheapest
      LIS 06:30
      14h 50m
      1 stop
      IAD 16:20
      Lisbon - Washington D.C. | Fri, Nov 20 | Iberia
      €337 €526
      36% off
      36% off
      €526 €337
    • LIS 20:45
      24h 35m
      1 stop
      IAD 16:20
      Lisbon - Washington D.C. | Sun, Nov 22 | Iberia
      €347 €526
      34% off
      34% off
      €526 €347
    • LIS 06:30
      14h 50m
      1 stop
      IAD 16:20
      Lisbon - Washington D.C. | Fri, Nov 20 | American Airlines
      €394 €526
      25% off
      25% off
      €526 €394
    • LIS 06:30
      14h 50m
      1 stop
      IAD 16:20
      Lisbon - Washington D.C. | Wed, Nov 18 | American Airlines
      €400
      24% off
      €526 €400
    • LIS 06:30
      14h 50m
      1 stop
      IAD 16:20
      Lisbon - Washington D.C. | Fri, Dec 18 | American Airlines
      €401
      24% off
      €526 €401
    • LIS 06:30
      14h 50m
      1 stop
      IAD 16:20
      Lisbon - Washington D.C. | Sat, Nov 21 | American Airlines
      €401
      24% off
      €526 €401
    • LIS 06:30
      14h 50m
      1 stop
      IAD 16:20
      Lisbon - Washington D.C. | Thu, Dec 3 | American Airlines
      €402
      24% off
      €526 €402
    • LIS 06:30
      14h 50m
      1 stop
      IAD 16:20
      Lisbon - Washington D.C. | Fri, Dec 4 | American Airlines
      €402
      24% off
      €526 €402
    • LIS 08:20
      13h
      1 stop
      IAD 16:20
      Lisbon - Washington D.C. | Mon, Dec 7 | American Airlines
      €402
      24% off
      €526 €402
    • LIS 13:00
      17h 25m
      1 stop
      WAS 14:00
      Lisbon - Washington D.C. | Tue, Nov 17 | Normal Airline
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    • Cheapest nonstop
      LIS 11:25
      8h 50m
      Direct
      IAD 15:15
      Lisbon - Washington D.C. | Thu, Nov 19 | TAP Air Portugal
      €428 €526
      19% off
      19% off
      €526 €428
    • LIS 10:50
      8h 50m
      Direct
      IAD 14:40
      Lisbon - Washington D.C. | Tue, Jan 12 | TAP Air Portugal
      €431 €526
      18% off
      18% off
      €526 €431
    • LIS 11:25
      8h 50m
      Direct
      IAD 15:15
      Lisbon - Washington D.C. | Thu, Nov 26 | TAP Air Portugal
      €439 €1,531
      71% off
      71% off
      €1,531 €439
    • LIS 16:40
      8h 50m
      Direct
      IAD 20:30
      Lisbon - Washington D.C. | Wed, Nov 25 | TAP Air Portugal
      €439
      71% off
      €1,531 €439
    • LIS 11:25
      8h 50m
      Direct
      IAD 15:15
      Lisbon - Washington D.C. | Thu, Dec 3 | TAP Air Portugal
      €440
      71% off
      €1,531 €440
    • LIS 16:40
      8h 50m
      Direct
      IAD 20:30
      Lisbon - Washington D.C. | Wed, Dec 9 | TAP Air Portugal
      €440
      71% off
      €1,531 €440
    • LIS 16:40
      8h 50m
      Direct
      IAD 20:30
      Lisbon - Washington D.C. | Fri, Dec 11 | TAP Air Portugal
      €440
      71% off
      €1,531 €440
    • LIS 11:25
      8h 50m
      Direct
      IAD 15:15
      Lisbon - Washington D.C. | Sat, Dec 12 | TAP Air Portugal
      €440
      71% off
      €1,531 €440
    • LIS 11:25
      8h 50m
      Direct
      IAD 15:15
      Lisbon - Washington D.C. | Mon, Dec 7 | TAP Air Portugal
      €440
      71% off
      €1,531 €440
    • LIS 13:00
      17h 25m
      1 stop
      WAS 14:00
      Lisbon - Washington D.C. | Tue, Nov 17 | Normal Airline
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      Find more flights
    • Cheapest nonstop
      LIS 11:25
      8h 50m
      Direct
      IAD 15:15
      Lisbon - Washington D.C. | Thu, Nov 19 | TAP Air Portugal
      €428 €1,531
      72% off
      72% off
      €1,531 €428
    • LIS 11:25
      8h 50m
      Direct
      IAD 15:15
      Lisbon - Washington D.C. | Thu, Nov 26 | TAP Air Portugal
      €439 €1,531
      71% off
      71% off
      €1,531 €439
    • LIS 16:40
      8h 50m
      Direct
      IAD 20:30
      Lisbon - Washington D.C. | Wed, Nov 25 | TAP Air Portugal
      €439 €1,531
      71% off
      71% off
      €1,531 €439
    • LIS 11:25
      8h 50m
      Direct
      IAD 15:15
      Lisbon - Washington D.C. | Thu, Dec 3 | TAP Air Portugal
      €440
      71% off
      €1,531 €440
    • LIS 16:40
      8h 50m
      Direct
      IAD 20:30
      Lisbon - Washington D.C. | Wed, Dec 9 | TAP Air Portugal
      €440
      71% off
      €1,531 €440
    • LIS 16:40
      8h 50m
      Direct
      IAD 20:30
      Lisbon - Washington D.C. | Fri, Dec 11 | TAP Air Portugal
      €440
      71% off
      €1,531 €440
    • LIS 11:25
      8h 50m
      Direct
      IAD 15:15
      Lisbon - Washington D.C. | Sat, Dec 12 | TAP Air Portugal
      €440
      71% off
      €1,531 €440
    • LIS 11:25
      8h 50m
      Direct
      IAD 15:15
      Lisbon - Washington D.C. | Mon, Dec 7 | TAP Air Portugal
      €440
      71% off
      €1,531 €440
    • LIS 10:50
      8h 50m
      Direct
      IAD 14:40
      Lisbon - Washington D.C. | Tue, Nov 24 | TAP Air Portugal
      €471
      69% off
      €1,531 €471
    • LIS 13:00
      17h 25m
      1 stop
      WAS 14:00
      Lisbon - Washington D.C. | Tue, Nov 17 | Normal Airline
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    • LIS 12:20
      8h 20m
      Direct
      IAD 15:40
      Lisbon - Washington D.C. | Sat, Dec 19 | Lufthansa
      €843 €1,442
      42% off
      42% off
      €1,442 €843
    • LIS 12:20
      8h 20m
      Direct
      IAD 15:40
      Lisbon - Washington D.C. | Tue, Dec 29 | United Airlines
      €843 €1,442
      42% off
      42% off
      €1,442 €843
    • LIS 12:20
      8h 20m
      Direct
      IAD 15:40
      Lisbon - Washington D.C. | Sat, Dec 19 | United Airlines
      €843 €1,442
      42% off
      42% off
      €1,442 €843
    • LIS 11:55
      8h 20m
      Direct
      IAD 15:15
      Lisbon - Washington D.C. | Mon, Dec 21 | United Airlines
      €843
      42% off
      €1,442 €843
    • LIS 12:20
      8h 20m
      Direct
      IAD 15:40
      Lisbon - Washington D.C. | Thu, Nov 26 | United Airlines
      €845
      41% off
      €1,442 €845
    • LIS 12:20
      8h 20m
      Direct
      IAD 15:40
      Lisbon - Washington D.C. | Tue, Nov 17 | Lufthansa
      €847
      41% off
      €1,442 €847
    • LIS 12:20
      8h 20m
      Direct
      IAD 15:40
      Lisbon - Washington D.C. | Thu, Dec 17 | United Airlines
      €848
      41% off
      €1,442 €848
    • LIS 12:20
      8h 20m
      Direct
      IAD 15:40
      Lisbon - Washington D.C. | Tue, Jan 5 | Lufthansa
      €988
      31% off
      €1,442 €988
    • LIS 12:20
      8h 20m
      Direct
      IAD 15:40
      Lisbon - Washington D.C. | Sun, Nov 29 | United Airlines
      €1,008
      30% off
      €1,442 €1,008
    • LIS 13:00
      17h 25m
      1 stop
      WAS 14:00
      Lisbon - Washington D.C. | Tue, Nov 17 | Normal Airline
      Find more flights
      Find more flights
    • Cheapest nonstop
      LIS 11:25
      8h 50m
      Direct
      IAD 15:15
      Lisbon - Washington D.C. | Mon, Nov 16 | TAP Air Portugal
      €731 €1,029
      28% off
      28% off
      €1,029 €731
    • LIS 11:55
      8h 20m
      Direct
      IAD 15:15
      Lisbon - Washington D.C. | Mon, Nov 16 | United Airlines
      €839 €1,029
      18% off
      18% off
      €1,029 €839
    • LIS 11:55
      8h 20m
      Direct
      IAD 15:15
      Lisbon - Washington D.C. | Mon, Nov 16 | Lufthansa
      €843 €1,029
      18% off
      18% off
      €1,029 €843
    • LIS 10:50
      8h 50m
      Direct
      IAD 14:40
      Lisbon - Washington D.C. | Tue, Nov 17 | TAP Air Portugal
      €565
      45% off
      €1,029 €565
    • LIS 11:40
      12h 25m
      1 stop
      IAD 19:05
      Lisbon - Washington D.C. | Wed, Nov 18 | Royal Air Maroc
      €527
      49% off
      €1,029 €527
    • LIS 16:40
      8h 50m
      Direct
      IAD 20:30
      Lisbon - Washington D.C. | Wed, Nov 18 | TAP Air Portugal
      €487
      53% off
      €1,029 €487
    • LIS 08:20
      13h
      1 stop
      IAD 16:20
      Lisbon - Washington D.C. | Thu, Nov 19 | Iberia
      €421
      59% off
      €1,029 €421
    • LIS 08:20
      13h
      1 stop
      IAD 16:20
      Lisbon - Washington D.C. | Thu, Nov 19 | American Airlines
      €557
      46% off
      €1,029 €557
    • LIS 10:00
      12h 28m
      1 stop
      IAD 17:28
      Lisbon - Washington D.C. | Thu, Nov 19 | Air France
      €437
      57% off
      €1,029 €437
    • LIS 13:00
      17h 25m
      1 stop
      WAS 14:00
      Lisbon - Washington D.C. | Tue, Nov 17 | Normal Airline
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      Find more flights

Displayed flight fares from Lisbon to Washington D.C. are based on average prices across airlines for the next 3 months, according to the latest Trip.com database.

Which airline offers the cheapest flights from Humberto Delgado Airport to Dulles International Airport?

The cheapest airline flying from Humberto Delgado Airport to Dulles International Airport is Iberia (from €337) among 1 carriers operating this route. Based on Trip.com's latest 7-day flight data.
easyJet logo easyJet Wizz Air UK logo Wizz Air UK British Airways logo British Airways Jet2.com logo Jet2.com Virgin Atlantic logo Virgin Atlantic
TAP Air Portugal logo TAP Air Portugal

Trip.com Price Insights: Flights from Humberto Delgado Airport to Dulles International Airport

What is the cheapest month to fly from Humberto Delgado Airport to Dulles International Airport?

The data is based on the past 12 months and shows the average one-way ticket prices from Humberto Delgado Airport to Dulles International Airport for each month in the Trip.com database.

Based on Trip.com's data from the past 12 months, the cheapest one-way flights from Humberto Delgado Airport to Dulles International Airport are usually in October, with an average price of €437. It is best to avoid December, when the average price can reach €745.

€745
€591
€437
€283
    Cheapest
  • €523
    May
  • €639
    Jun
  • €702
    Jul
  • €663
    Aug
  • €475
    Sep
  • €437
    Oct
  • €580
    Nov
  • €745
    Dec
  • €604
    Jan
  • €616
    Feb
  • €549
    Mar
  • €492
    Apr

What is the cheapest day of the week to fly from Humberto Delgado Airport to Dulles International Airport?

The data is based on the past 12 months and shows the average ticket prices from Humberto Delgado Airport to Dulles International Airport for each day of the week in the Trip.com database.

Based on Trip.com's data from the past 12 months, the cheapest departure day from Humberto Delgado Airport to Dulles International Airport is Wednesday, with average prices usually lower than other days. Avoid departing on Tuesday as prices are typically highest on that day.

€805
€677
€549
€421
    Cheapest
  • €650
    Mon
  • €805
    Tue
  • €549
    Wed
  • €592
    Thu
  • €575
    Fri
  • €654
    Sat
  • €758
    Sun

What is the flight schedule from Humberto Delgado Airport to Dulles International Airport?

Check the schedule for flights from Lisbon to Washington D.C. and find the flight that best matches your travel plans.

Flight info.
Departure
Arrival
Weekly Schedule

  1. AA8543

    Humberto Delgado Airport

    08:20

    LIS

    1h 25m

    Direct

    10:45

    MAD

    S M T W T F -
    Search

  2. AA8552

    Madrid Barajas Airport

    12:40

    MAD

    9h 40m

    Direct

    16:20

    IAD

    S - T W T F -

  3. IB540

    Humberto Delgado Airport

    06:30

    LIS

    1h 25m

    Direct

    08:55

    MAD

    S M T W T F S
    Search

  4. IB361

    Madrid Barajas Airport

    12:40

    MAD

    9h 40m

    Direct

    16:20

    IAD

    S - T W T F -

  5. AA8542

    Humberto Delgado Airport

    06:30

    LIS

    1h 25m

    Direct

    08:55

    MAD

    S M T W T F S
    Search

  6. AA8552

    Madrid Barajas Airport

    12:40

    MAD

    9h 40m

    Direct

    16:20

    IAD

    S - T W T F -

  7. AY5564

    Humberto Delgado Airport

    06:35

    LIS

    1h 25m

    Direct

    09:00

    MAD

    S M T W T F S
    Search

  8. AY5367

    Madrid Barajas Airport

    12:20

    MAD

    9h 10m

    Direct

    15:30

    IAD

    S - T W T F -

  9. IB540

    Humberto Delgado Airport

    06:30

    LIS

    1h 25m

    Direct

    08:55

    MAD

    S M T W T F S
    Search

  10. AA8552

    Madrid Barajas Airport

    12:40

    MAD

    9h 40m

    Direct

    16:20

    IAD

    S - T W T F -

  11. U27639

    Humberto Delgado Airport

    07:15

    LIS

    1h 20m

    Direct

    09:35

    MAD

    S M T W T F S
    Search

  12. AT973

    Madrid Barajas Airport

    12:05

    MAD

    1h 50m

    Direct

    11:55

    CMN

    S M T W T F S

  13. AT218

    Casablanca Mohammed V International Airport

    15:25

    CMN

    8h 15m

    Direct

    19:40

    IAD

    - - T - T - S

  14. IB1146

    Humberto Delgado Airport

    20:45

    LIS

    1h 25m

    Direct

    23:10

    MAD

    - M T - - - S
    Search

  15. IB361

    Madrid Barajas Airport

    12:40

    MAD

    9h 40m

    Direct

    16:20

    IAD

    S - T W T F -

  16. TP1022

    Humberto Delgado Airport

    21:00

    LIS

    1h 30m

    Direct

    23:30

    MAD

    S M T W T F S
    Search

  17. AT973

    Madrid Barajas Airport

    12:05

    MAD

    1h 50m

    Direct

    11:55

    CMN

    S M T W T F S

  18. AT218

    Casablanca Mohammed V International Airport

    15:25

    CMN

    8h 15m

    Direct

    19:40

    IAD

    - - T - T - S

  19. UX1160

    Humberto Delgado Airport

    20:05

    LIS

    1h 15m

    Direct

    22:20

    MAD

    S M T W T F S
    Search

  20. AT973

    Madrid Barajas Airport

    12:05

    MAD

    1h 50m

    Direct

    11:55

    CMN

    S M T W T F S

  21. AT218

    Casablanca Mohammed V International Airport

    15:25

    CMN

    8h 15m

    Direct

    19:40

    IAD

    - - T - T - S

  22. U27651

    Humberto Delgado Airport

    07:00

    LIS

    1h 20m

    Direct

    09:20

    MAD

    - - - W T - S
    Search

  23. AT973

    Madrid Barajas Airport

    12:05

    MAD

    1h 50m

    Direct

    11:55

    CMN

    S M T W T F S

  24. AT218

    Casablanca Mohammed V International Airport

    15:25

    CMN

    8h 15m

    Direct

    19:40

    IAD

    - - T - T - S
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FAQs for Humberto Delgado Airport to Dulles International Airport Flights

  • How long is the flight from Humberto Delgado Airport to Dulles International Airport?

    Humberto Delgado Airport to Dulles International Airport takes about 7 hours 49 minutes on average. Actual flight time may vary depending on route, weather and air traffic.
  • There are around 3 daily flights from Humberto Delgado Airport (LIS) to Dulles International Airport (IAD).
  • The earliest flight from Humberto Delgado Airport to Dulles International Airport departs at 10:50, and the last departs at 16:45, with about 3 flights per day. Flight times may change, so please check the latest departure and arrival times before you travel.
  • The route from Humberto Delgado Airport (LIS) to Dulles International Airport (IAD) is quite popular. Without considering departure times or holidays, tickets cost around €872 in November, the most expensive month to book this route.
  • TAP Air Portugal is a very popular airline operating an average of 1190 flights per month.
  • One-way flights from Humberto Delgado Airport to Dulles International Airport currently start from €337, and round-trip fares start from €510. The current lowest fare is a Iberia flight departing on Fri, Nov 20; prices may vary depending on availability.
  • Yes. TAP Air Portugal and United Airlines operate direct flights from Humberto Delgado Airport to Dulles International Airport, with an average flight time of 7 hours 46 minutes, and around 12 weekly flights. Actual flight frequency may vary by season.
  • Based on Trip.com flight data for departures within the next 30 days with at most one stop, the average one-way price from Humberto Delgado Airport to Dulles International Airport is €756. Prices may vary depending on the departure date, airline, and availability.
  • Jetblue Airways are the most popular budget airlines flying from Humberto Delgado Airport to Dulles International Airport, with one-way fares starting from €337. Compare final prices carefully, as baggage, seat selection and payment fees may apply.
  • Humberto Delgado Airport to Dulles International Airport operates around 12 weekly flights, mainly by TAP Air Portugal and United Airlines. Actual frequency may vary during holidays and seasonal schedule adjustments.
  • Enter Humberto Delgado Airport and Dulles International Airport, select your departure date and number of passengers, then compare flights by price, flight duration, and baggage allowance. Once you've chosen a fare, review the change and refund rules, fill in passenger details, and pay to receive your booking confirmation.

Find Cheap Flights with Trip.com

Note: Prices shown on this page are the estimated lowest prices and include all taxes and fees found in the last 24 hours.

Book with no extra fees

Prices displayed on this page are all-inclusive (including taxes, fuel surcharges, civil aviation development fund, etc.), with all fees confirmed before payment. Fees for luggage, meals, Wi-Fi, or other additional services are also included as shown in the flight cards.

Real-time pricing updates

Prices, availability, and travel information on this page have been updated within the last 24 hours—sometimes even in real time. The more popular the route, the more accurate the data.

Change & Cancellation Policy

Trip.com shows the cancellation and change policies for each flight ticket during the booking process, including any fees and applicable conditions. Please check the following scenarios:
Voluntary cancellation/change:
To request a change or cancellation, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and flight segment, and submit your request. Please note that additional charges may apply according to the airline's ticket policy.
Cancellation/change due to a flight schedule change:
If the flight schedule has changed and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please visit the customer support pages.