Cheap flights from Dulles Intl (IAD) to Portugal from $355

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 7/15. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
IAD — LIS
jun. 4 — jun. 111

How far in advance should I book a flight from Washington, D.C. Dulles Intl Airport to Portugal?

When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 42 days in advance, which can save you up to 30% on flights from Washington, D.C. Dulles Intl Airport to Portugal compared to booking the week you need them. Waiting 42 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at $714. For sooner than that we have options available in the next 3 days from $1,003.

What is the cheapest month to fly from Washington, D.C. Dulles Intl Airport to Portugal?

The best pricing can be found in the month of January. Prices to Portugal from Washington, D.C. Dulles Intl Airport average $871. You can even find prices in January for less than $871, as users have found deals to Portugal from as low as $476. The month of June appears to be one of the more expensive times to travel to Portugal from Washington, D.C. Dulles Intl Airport. Flying in the targeted month can save you up to 38%.

What is the cheapest time of day to fly from IAD to PT?

When flying from Washington, D.C. Dulles Intl Airport to Portugal, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Cheap PLAY flights from Dulles Intl to Portugal

Explore cheap flight options specifically provided by PLAY for the route between Dulles Intl and Portugal. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,784,634 searches. Data last updated mayo 30, 2024.
Take a look at some of the lowest-priced PLAY flights heading from Washington, D.C. to Portugal. Come back soon if you're not finding the exact deal you're looking for.
dom. 11/36:05 pmIAD - LIS
1 stop21h 10mPLAY
lun. 11/119:15 pmLIS - IAD
1 stop24h 40mPLAY
Deal found 5/29$400
dom. 9/86:50 pmIAD - LIS
1 stop20h 30mPLAY
lun. 9/169:30 pmLIS - IAD
1 stop25h 10mPLAY
Deal found 5/29$413
dom. 10/136:50 pmIAD - LIS
1 stop20h 30mPLAY
lun. 10/219:30 pmLIS - IAD
1 stop25h 10mPLAY
Deal found 5/30$440
dom. 10/206:50 pmIAD - LIS
1 stop20h 30mPLAY
vie. 11/89:15 pmLIS - IAD
1 stop24h 40mPLAY
Deal found 5/29$451
jue. 11/216:05 pmIAD - LIS
1 stop21h 10mPLAY
lun. 12/29:15 pmLIS - IAD
1 stop24h 40mPLAY
Deal found 5/30$456
dom. 10/206:50 pmIAD - LIS
1 stop20h 30mPLAY
vie. 11/89:15 pmLIS - IAD
1 stop24h 40mPLAY
Deal found 5/30$458
dom. 10/136:50 pmIAD - LIS
1 stop20h 30mPLAY
vie. 10/189:20 pmLIS - IAD
1 stop25h 20mPLAY
Deal found 5/30$470
jue. 11/76:05 pmIAD - LIS
1 stop21h 10mPLAY
lun. 11/119:15 pmLIS - IAD
1 stop24h 40mPLAY
Deal found 5/29$471
dom. 10/136:50 pmIAD - LIS
1 stop20h 30mPLAY
vie. 10/189:20 pmLIS - IAD
1 stop25h 20mPLAY
Deal found 5/29$480

Cheap Royal Air Maroc flights from Dulles Intl to Portugal

Explore cheap flight options specifically provided by Royal Air Maroc for the route between Dulles Intl and Portugal. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,784,634 searches. Data last updated mayo 30, 2024.
Some of the best deals we've found on Royal Air Maroc flights traveling from Washington, D.C. to Portugal. Check back soon if you're not seeing flights that suit your needs.
mié. 11/68:30 pmIAD - LIS
1 stop10h 05mRoyal Air Maroc
lun. 11/1112:35 pmLIS - IAD
1 stop10h 55mRoyal Air Maroc
Deal found 5/30$540
mié. 11/68:30 pmIAD - LIS
1 stop10h 05mRoyal Air Maroc
lun. 11/2512:35 pmLIS - IAD
1 stop10h 55mRoyal Air Maroc
Deal found 5/29$546
vie. 11/19:30 pmIAD - LIS
1 stop10h 05mRoyal Air Maroc
mié. 11/611:20 amLIS - IAD
1 stop12h 10mRoyal Air Maroc
Deal found 5/29$547
sáb. 6/89:20 pmIAD - LIS
1 stop15h 20mRoyal Air Maroc
mar. 6/117:40 pmLIS - IAD
1 stop28h 40mRoyal Air Maroc
Deal found 5/29$1,558

Cheap Dulles Intl to Portugal flights in May & June 2024

Find cheap flight options from Dulles Intl to Portugal specifically for the months of May and June 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,784,634 searches. Prices were last updated on mayo 30, 2024.
Scroll through some of the best deals on flights from Washington, D.C. to Portugal in 2024. For more flight deals, be sure to check back very soon.
jue. 6/610:20 pmIAD - OPO
1 stop11h 40mTAP AIR PORTUGAL
mié. 6/1211:00 amOPO - IAD
1 stop14h 20mTAP AIR PORTUGAL
Deal found 5/30$751
dom. 6/235:40 pmIAD - OPO
1 stop10h 20mTAP AIR PORTUGAL
mié. 7/38:55 amOPO - IAD
1 stop11h 20mTAP AIR PORTUGAL
Deal found 5/29$798
lun. 6/106:25 pmIAD - OPO
1 stop16h 05mAir France
dom. 6/169:15 amOPO - IAD
1 stop11h 55mAir France
Deal found 5/30$824
mié. 6/266:25 pmIAD - OPO
1 stop16h 05mDelta
mié. 7/105:00 amOPO - IAD
1 stop16h 00mDelta
Deal found 5/29$826
jue. 6/612:35 pmIAD - OPO
2 stops14h 50mDelta
mié. 6/129:15 amOPO - IAD
1 stop14h 55mDelta
Deal found 5/30$828
sáb. 6/85:03 pmIAD - OPO
2 stops17h 27mDelta
sáb. 6/155:00 amOPO - IAD
1 stop15h 35mDelta
Deal found 5/29$830
jue. 5/305:25 pmIAD - OPO
1 stop12h 15mKLM
mié. 6/129:15 amOPO - IAD
1 stop11h 55mKLM
Deal found 5/29$836
mié. 6/265:50 pmIAD - OPO
1 stop23h 25mKLM
dom. 6/3010:05 pmOPO - IAD
1 stop22h 30mKLM
Deal found 5/30$839
jue. 6/612:35 pmIAD - OPO
2 stops14h 50mDelta
mié. 6/1211:25 amOPO - IAD
2 stops17h 34mDelta
Deal found 5/30$840

Dulles Intl to Portugal 2024 flight deals

Discover exclusive flight deals for travel between Dulles Intl and Portugal in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 2,784,634 searches. Data last updated mayo 30, 2024.
Scroll through some of the best deals on flights from Washington, D.C. to Portugal in 2024. For more flight deals, be sure to check back very soon.
lun. 10/75:35 pmIAD - OPO
1 stop10h 25mTAP AIR PORTUGAL
lun. 10/1410:55 pmOPO - IAD
1 stop21h 25mTAP AIR PORTUGAL
Deal found 5/29$428
mié. 10/25:40 pmIAD - OPO
1 stop20h 20mTAP AIR PORTUGAL
lun. 10/1410:55 pmOPO - IAD
1 stop21h 25mTAP AIR PORTUGAL
Deal found 5/29$430
mar. 11/55:30 pmIAD - OPO
1 stop11h 40mTAP AIR PORTUGAL
mié. 11/132:00 pmOPO - IAD
1 stop12h 00mTAP AIR PORTUGAL
Deal found 5/29$431
dom. 12/110:30 pmIAD - OPO
1 stop18h 30mTAP AIR PORTUGAL
lun. 12/911:25 amOPO - IAD
1 stop31h 15mTAP AIR PORTUGAL
Deal found 5/30$437
jue. 11/75:35 pmIAD - OPO
1 stop18h 35mKLM
jue. 11/148:10 pmOPO - IAD
1 stop24h 35mKLM
Deal found 5/29$438
dom. 11/310:30 pmIAD - OPO
1 stop11h 50mTAP AIR PORTUGAL
mié. 11/132:00 pmOPO - IAD
1 stop12h 00mTAP AIR PORTUGAL
Deal found 5/29$454
dom. 9/810:20 pmIAD - OPO
1 stop15h 40mTAP AIR PORTUGAL
mié. 9/2510:55 pmOPO - IAD
1 stop26h 25mTAP AIR PORTUGAL
Deal found 5/30$466
dom. 9/2210:20 pmIAD - OPO
1 stop17h 40mTAP AIR PORTUGAL
dom. 10/69:20 pmOPO - IAD
1 stop22h 55mTAP AIR PORTUGAL
Deal found 5/29$468
jue. 11/75:30 pmIAD - OPO
1 stop11h 25mTAP AIR PORTUGAL
mié. 11/132:00 pmOPO - IAD
1 stop12h 00mTAP AIR PORTUGAL
Deal found 5/29$471

Non-stop flights to Portugal from Dulles Intl

Discover non-stop flight options from Dulles Intl to Portugal. Find direct flights with no layovers, providing a convenient travel experience. Explore non-stop flight options based on user searches, and compare prices and availability for your desired travel dates. Over the last 7 days, Cheapflights users made 2,784,634 searches. Data last updated mayo 30, 2024.
For a quicker trip, book one of these direct flights from Washington, D.C. to Portugal. Users seeking other options on flights from Washington, D.C. to Portugal should update the search form at the top of the page.
vie. 8/2310:15 pmIAD - LIS
Nonstop7h 10mTAP AIR PORTUGAL
mar. 8/2712:00 pmLIS - IAD
Nonstop8h 20mTAP AIR PORTUGAL
Deal found 5/28$869
dom. 7/2810:20 pmIAD - LIS
Nonstop7h 15mTAP AIR PORTUGAL
mar. 8/1311:55 amLIS - IAD
Nonstop8h 25mTAP AIR PORTUGAL
Deal found 5/29$870
mié. 8/75:40 pmIAD - LIS
Nonstop7h 30mTAP AIR PORTUGAL
mié. 8/2111:55 amLIS - IAD
Nonstop8h 20mTAP AIR PORTUGAL
Deal found 5/30$875
lun. 7/1510:25 pmIAD - LIS
Nonstop7h 15mTAP AIR PORTUGAL
lun. 7/225:30 pmLIS - IAD
Nonstop8h 20mTAP AIR PORTUGAL
Deal found 5/30$876
mar. 7/95:00 pmIAD - LIS
Nonstop7h 30mTAP AIR PORTUGAL
mié. 7/174:20 pmLIS - IAD
Nonstop8h 20mTAP AIR PORTUGAL
Deal found 5/29$877
jue. 7/185:20 pmIAD - LIS
Nonstop7h 30mTAP AIR PORTUGAL
mar. 7/235:40 pmLIS - IAD
Nonstop8h 20mTAP AIR PORTUGAL
Deal found 5/29$881
sáb. 6/298:20 pmIAD - LIS
Nonstop7h 15mTAP AIR PORTUGAL
jue. 9/512:00 pmLIS - IAD
Nonstop8h 20mTAP AIR PORTUGAL
Deal found 5/29$882
dom. 7/1410:20 pmIAD - LIS
Nonstop7h 15mTAP AIR PORTUGAL
mié. 7/2411:55 amLIS - IAD
Nonstop8h 20mTAP AIR PORTUGAL
Deal found 5/28$883
mar. 7/95:00 pmIAD - LIS
Nonstop7h 30mTAP AIR PORTUGAL
mié. 7/2411:55 amLIS - IAD
Nonstop8h 20mTAP AIR PORTUGAL
Deal found 5/30$885

Dulles Intl to Portugal flights leaving soon

Find last-minute flight options from Dulles Intl to Portugal for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 2,784,634 searches. Data last updated mayo 30, 2024.
Consider one of these great deals we found on last-minute flights from Washington, D.C. to Portugal. Users should examine the flight details to ensure there are no surprises.
jue. 6/610:20 pmIAD - OPO
1 stop11h 40mTAP AIR PORTUGAL
mié. 6/1211:00 amOPO - IAD
1 stop14h 20mTAP AIR PORTUGAL
Deal found 5/30$751
jue. 6/612:35 pmIAD - OPO
2 stops14h 50mDelta
mié. 6/129:15 amOPO - IAD
1 stop14h 55mDelta
Deal found 5/30$828
sáb. 6/85:03 pmIAD - OPO
2 stops17h 27mDelta
sáb. 6/155:00 amOPO - IAD
1 stop15h 35mDelta
Deal found 5/29$830
jue. 6/612:35 pmIAD - OPO
2 stops14h 50mDelta
mié. 6/1211:25 amOPO - IAD
2 stops17h 34mDelta
Deal found 5/30$840
jue. 6/610:20 pmIAD - OPO
1 stop11h 40mTAP AIR PORTUGAL
mié. 6/1211:00 amOPO - IAD
1 stop14h 20mTAP AIR PORTUGAL
Deal found 5/29$846
mié. 6/58:30 pmIAD - LIS
3 stops31h 00mMultiple Airlines
mar. 6/119:15 pmLIS - IAD
3 stops29h 55mMultiple Airlines
Deal found 5/29$883
mié. 6/510:20 pmIAD - LIS
Nonstop7h 15mTAP AIR PORTUGAL
mar. 6/1112:00 pmLIS - IAD
Nonstop8h 20mTAP AIR PORTUGAL
Deal found 5/29$894
mié. 6/58:30 pmIAD - LIS
2 stops16h 20mMultiple Airlines
mar. 6/119:15 pmLIS - IAD
3 stops27h 00mMultiple Airlines
Deal found 5/29$897
mié. 6/58:30 pmIAD - LIS
2 stops16h 20mMultiple Airlines
mié. 6/1210:05 pmLIS - IAD
3 stops26h 10mMultiple Airlines
Deal found 5/29$909

One-way flights to Portugal from Dulles Intl

Search for one-way flight options from Dulles Intl to Portugal. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 2,784,634 searches. Data last updated mayo 30, 2024.
Take a look at some of the best available options we've come across on one-way flights from Washington, D.C. to Portugal. Those needing a return flight from Washington, D.C. to Portugal can use the search form above.
lun. 7/156:50 pmIAD - OPO
1 stop20h 10mPLAY
Deal found 5/29$355
jue. 10/105:20 pmIAD - FNC
1 stop21h 05mMultiple Airlines
Deal found 5/29$379
mié. 7/1010:20 pmIAD - OPO
1 stop15h 40mTAP AIR PORTUGAL
Deal found 5/30$400
jue. 10/105:20 pmIAD - FNC
3 stops26h 15mMultiple Airlines
Deal found 5/29$405
dom. 7/215:40 pmIAD - OPO
1 stop23h 50mTAP AIR PORTUGAL
Deal found 5/29$416
jue. 10/1010:20 pmIAD - FNC
2 stops21h 15mMultiple Airlines
Deal found 5/29$426
mié. 7/106:50 pmIAD - OPO
2 stops18h 20mMultiple Airlines
Deal found 5/30$430
dom. 7/216:50 pmIAD - LIS
3 stops23h 35mMultiple Airlines
Deal found 5/30$433
lun. 6/241:00 pmIAD - LIS
3 stops41h 00mMultiple Airlines
Deal found 5/29$438

Find flights from Dulles Intl to Portugal within your budget

Customize your flight search to find flights from Dulles Intl to Portugal that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,784,634 searches. Data last updated mayo 30, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$400 - $540

Route

Depart

Return

Price

Washington, D.C. Dulles IntlLisbon Humberto Delgado

IAD - LIS

IADLIS

Washington, D.C. Dulles Intl

dom. 11/3

1 stop21h 10m

Lisbon Humberto Delgado

lun. 11/11

1 stop24h 40m

$400

Washington, D.C. Dulles IntlPorto

IAD - OPO

IADOPO

Washington, D.C. Dulles Intl

lun. 10/7

1 stop10h 25m

Porto

lun. 10/14

1 stop21h 25m

$428

Washington, D.C. Dulles IntlPorto

IAD - OPO

IADOPO

Washington, D.C. Dulles Intl

jue. 11/7

1 stop18h 35m

Porto

jue. 11/14

1 stop24h 35m

$438

Washington, D.C. Dulles IntlPorto

IAD - OPO

IADOPO

Washington, D.C. Dulles Intl

lun. 11/11

2 stops17h 00m

Porto

lun. 11/18

1 stop12h 40m

$500

Washington, D.C. Dulles IntlPorto

IAD - OPO

IADOPO

Washington, D.C. Dulles Intl

lun. 9/30

2 stops21h 00m

Porto

mié. 10/16

1 stop27h 40m

$516

Washington, D.C. Dulles IntlPorto

IAD - OPO

IADOPO

Washington, D.C. Dulles Intl

lun. 11/11

2 stops19h 20m

Porto

lun. 11/18

2 stops34h 08m

$524

Washington, D.C. Dulles IntlPorto

IAD - OPO

IADOPO

Washington, D.C. Dulles Intl

mié. 11/6

2 stops16h 05m

Porto

mié. 11/13

2 stops20h 19m

$532

Washington, D.C. Dulles IntlPorto

IAD - OPO

IADOPO

Washington, D.C. Dulles Intl

vie. 11/1

1 stop16h 35m

Porto

dom. 11/10

2 stops33h 32m

$533

Washington, D.C. Dulles IntlLisbon Humberto Delgado

IAD - LIS

IADLIS

Washington, D.C. Dulles Intl

mié. 11/6

1 stop10h 05m

Lisbon Humberto Delgado

lun. 11/11

1 stop10h 55m

$540

Flights are sorted by cheapest first

Deals found on 5/29

No data available for this route at this time. Please check back soon.

Best time to book a flight from Dulles Intl to Portugal

Have a flexible travel schedule? Discover the best time to fly to Portugal from Dulles Intl with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Reviews of airlines servicing Portugal

Get insights into the airlines that provide service to Portugal. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Portugal. Reviews last updated mayo 30, 2024.
Read reviews from past customers who have flown PLAY, Royal Air Maroc and Scandinavian Airlines from Washington, D.C. to Portugal. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
8.0
Very good
10,457 reviews

Entertainment

8.0

Boarding

8.2

Food

7.4

Comfort

7.9

Crew

8.6

Overall

8.0

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

8.0
Very good
10,457 reviews
8.0
Very good
10,457 reviews

Entertainment

8.0

Boarding

8.2

Food

7.4

Comfort

7.9

Crew

8.6

Overall

8.0

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

7.9
Good
1,520 reviews
8.0
Very good
10,457 reviews

Entertainment

8.0

Boarding

8.2

Food

7.4

Comfort

7.9

Crew

8.6

Overall

8.0

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

7.8
Good
1,954 reviews
8.0
Very good
10,457 reviews

Entertainment

8.0

Boarding

8.2

Food

7.4

Comfort

7.9

Crew

8.6

Overall

8.0

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

7.8
Good
1,372 reviews
8.0
Very good
10,457 reviews

Entertainment

8.0

Boarding

8.2

Food

7.4

Comfort

7.9

Crew

8.6

Overall

8.0

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

7.6
Good
4,365 reviews
8.0
Very good
10,457 reviews

Entertainment

8.0

Boarding

8.2

Food

7.4

Comfort

7.9

Crew

8.6

Overall

8.0

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

Related info for your journey

Find useful and relevant information for your journey from Dulles Intl to Portugal. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • Can I find flights from Washington, D.C. Dulles Intl Airport to Portugal for under $400 on Cheapflights?

    Yes, there are multiple flights from Washington, D.C. Dulles Intl Airport to Portugal for under $400. The cheapest flight booked recently is on PLAY for just $400, but on average you can expect to pay $451.

  • Are there nonstop flights from Washington, D.C. Dulles Intl Airport to Portugal for under $900 on Cheapflights?

    Cheapflights has at least 20 direct flights from Washington, D.C. Dulles Intl Airport to Portugal under $900. A good price for a nonstop flight from Washington, D.C. Dulles Intl Airport to Portugal is less than $886.

  • Are there last-minute flights available from Washington, D.C. Dulles Intl Airport to Portugal for under $800?

    There are currently 20+ open flights from Washington, D.C. Dulles Intl Airport to Portugal within the next 7 days for less than $800.

  • What days are nonstop flights available from Washington, D.C. Dulles Intl Airport to Portugal?

    Nonstop flights can be found on the following days: Monday, Thursday.

  • How many flights depart from Washington, D.C. Dulles Intl Airport to Portugal on average per day?

    Per day, 5 flights depart from Washington, D.C. Dulles Intl Airport to Portugal on average.
    Afternoon (Noon - 6pm) - 40% of flight departures
    Evening (6pm - Midnight) - 60% of flight departures

  • How long is the flight from Washington, D.C. Dulles Intl Airport to Portugal?

    PLAY, TAP AIR PORTUGAL, and KLM can get you from Washington, D.C. Dulles Intl Airport to Portugal in just under 10h 25m. Your travel time can differ by up to 10h 45m. The distance between Washington, D.C. Dulles Intl Airport and Portugal is about 3602 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from Washington, D.C. Dulles Intl Airport to Portugal one-way?

    The cheapest airlines for a one-way flight from Washington, D.C. Dulles Intl Airport to Portugal are PLAY ($355), TAP AIR PORTUGAL ($400), and Royal Air Maroc ($441).

  • What are the most popular routes from Washington, D.C. Dulles Intl Airport to Portugal?

  • What are the most reliable airlines from Washington, D.C. Dulles Intl Airport to Portugal?

    The top 3 most reliable airlines when flying from Washington, D.C. Dulles Intl Airport to Portugal are TAP AIR PORTUGAL (90%), JetBlue (82%) and Air Canada (80%).

  • What are the cheapest flights from Washington, D.C. Dulles Intl Airport to Portugal?

    Looking for the cheapest flight from Washington, D.C. Dulles Intl Airport to Portugal? While on average our users pay $1,866, our data indicates the cheapest price to be $349. The most popular route (Washington, D.C. Dulles Intl - Lisbon Humberto Delgado), is priced around $483.

  • What does IAD to LIS mean?

    IAD and LIS are unique codes to identify airports used in the aviation industry. They are defined by IATA (International Air Transport Association) and are commonly called IATA codes. IAD to LIS refers to a flight route from Washington, D.C. Dulles Intl Airport to Lisbon Humberto Delgado Airport. While you’re still figuring out your travel plans, it’s not a bad idea to learn the names and codes of other airports around these areas: Porto Airport (OPO), Faro Airport (FAO), Funchal Madeira Airport (FNC), Ponta Delgada Nordela Airport (PDL), Lajes Airport (TER).

  • Can I find deals for flights from Dulles Intl to Portugal that include extra baggage allowance?

    The amount of baggage you can bring on your Dulles Intl to Portugal flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from Dulles Intl to Portugal with specific airlines?

    Yes, Cheapflights allows you to browse and filter Dulles Intl to Portugal flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

  • Can I find deals for flights from Dulles Intl to Portugal that include hotel bookings?

    Yes. In addition to deals on Dulles Intl to Portugal flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Dulles Intl to Portugal?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Dulles Intl to Portugal.

  • Can I find deals for business class flights from Dulles Intl to Portugal?

    Yes. Cheapflights offers flight deals from Dulles Intl to Portugal by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • Can I find deals for flights from Dulles Intl to Portugal that allow pets onboard?

    Many airlines flying from Dulles Intl to Portugal offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from Dulles Intl to Portugal?

    Yes, you can often find last-minute deals on Dulles Intl to Portugal flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the Washington, D.C. Dulles Intl Airport to Portugal flight deals updated?

    The Washington, D.C. Dulles Intl Airport to Portugal flight deals you see on this page were last updated on 5/30.

  • What are the most popular airlines that fly from Washington, D.C. Dulles Intl Airport to Portugal?

  • What is the cheapest month to book a flight from Washington, D.C. Dulles Intl Airport to Portugal?

    Currently, December is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Portugal (average of $597). Flying from Washington, D.C. Dulles Intl Airport to Portugal in June is currently the most expensive (average of $1,194). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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Alternative routes for Dulles Intl to Portugal
See prices for flight routes from nearby airports that may be better suited for you.

Top 10 airlines flying from Dulles Intl to Portugal

Discover the top 10 airlines that operate flights from Dulles Intl to Portugal. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,784,634 searches. Data last updated mayo 30, 2024.
AirlineCheapestAverageFlexibilityOn-time
PLAYCheapest$296Average$380FlexibilityNo cancel feeOn-timeN/A
Search PLAY flights
SWISSCheapest$413Average$669FlexibilityNo cancel feeOn-time79%
Search SWISS flights
Air FranceCheapest$418Average$759FlexibilityNo cancel feeOn-time77%
Search Air France flights
DeltaCheapest$421Average$795FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
LufthansaCheapest$423Average$712FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
KLMCheapest$428Average$755FlexibilityNo cancel feeOn-time75%
Search KLM flights
Brussels AirlinesCheapest$435Average$559FlexibilityNo cancel feeOn-timeN/A
Search Brussels Airlines flights
IberiaCheapest$457Average$704FlexibilityNo cancel feeOn-time77%
Search Iberia flights
TAP AIR PORTUGALCheapest$477Average$1,007FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights
United AirlinesCheapest$485Average$1,118FlexibilityNo cancel feeOn-time69%
Search United Airlines flights

Search flights from Dulles Intl to Portugal by cabin class

Find flights from Dulles Intl to Portugal, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Hourly flight availability from Dulles Intl to Portugal

Find hourly flight availability from Dulles Intl to Portugal. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated mayo 30, 2024.
0%of flight departuresEarly morningMidnight to 6 am
0%of flight departuresMorning6 am to noon
8%of flight departuresAfternoonNoon to 6 pm
92%of flight departuresEvening6 pm to midnight
Midnight
6 AM
Noon
6 PM

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How does Cheapflights help users find flights from Dulles Intl to Portugal?

Cheapflights makes it easy to find Dulles Intl to Portugal flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Why should you use Cheapflights to find cheap flight tickets from Dulles Intl to Portugal?

Cheapflights helps you find that perfect flight to Portugal from Dulles Intl by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

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Yes! Cheapflights helps users easily find flights from Dulles Intl to Portugal with no change fees.

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Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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