Cheap flights from Dulles Intl (IAD) to Portugal from $307

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 10/14. 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
May 21 — May 281

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 $869. You can even find prices in January for less than $869, 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 37%.

When is the cheapest time to fly from Washington, D.C. Dulles Intl Airport to Portugal (IAD - 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 2,637,452 searches. Data last updated May 16, 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.
Sun 10/136:50 pmIAD - LIS
1 stop20h 30mPLAY
Mon 10/219:30 pmLIS - IAD
1 stop25h 10mPLAY
Deal found 5/15$370
Sun 11/36:05 pmIAD - LIS
1 stop21h 10mPLAY
Mon 11/119:15 pmLIS - IAD
1 stop24h 40mPLAY
Deal found 5/15$381
Sun 11/36:05 pmIAD - LIS
1 stop21h 10mPLAY
Mon 11/119:15 pmLIS - IAD
1 stop24h 40mPLAY
Deal found 5/15$382
Sun 11/36:05 pmIAD - LIS
1 stop21h 10mPLAY
Mon 11/119:15 pmLIS - IAD
1 stop24h 40mPLAY
Deal found 5/16$393
Sun 10/136:50 pmIAD - LIS
1 stop20h 30mPLAY
Mon 10/219:30 pmLIS - IAD
1 stop25h 10mPLAY
Deal found 5/16$394
Thu 10/317:05 pmIAD - LIS
1 stop21h 10mPLAY
Mon 11/189:15 pmLIS - IAD
1 stop24h 40mPLAY
Deal found 5/15$458
Thu 11/76:05 pmIAD - LIS
1 stop21h 10mPLAY
Mon 11/119:15 pmLIS - IAD
1 stop24h 40mPLAY
Deal found 5/15$471
Thu 11/76:05 pmIAD - LIS
1 stop21h 10mPLAY
Mon 11/119:15 pmLIS - IAD
1 stop24h 40mPLAY
Deal found 5/16$479
Thu 8/226:50 pmIAD - LIS
1 stop20h 30mPLAY
Mon 9/29:30 pmLIS - IAD
1 stop25h 10mPLAY
Deal found 5/15$484

Cheap TAP AIR PORTUGAL flights from Dulles Intl to Portugal

Explore cheap flight options specifically provided by TAP AIR PORTUGAL 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 2,637,452 searches. Data last updated May 16, 2024.
Some of the best deals we've found on TAP AIR PORTUGAL flights traveling from Washington, D.C. to Portugal. Check back soon if you're not seeing flights that suit your needs.
Sun 11/310:30 pmIAD - LIS
Nonstop7h 05mTAP AIR PORTUGAL
Mon 11/119:15 amLIS - IAD
Nonstop8h 45mTAP AIR PORTUGAL
Deal found 5/15$478
Thu 10/1710:20 pmIAD - LIS
Nonstop7h 15mTAP AIR PORTUGAL
Tue 10/2212:00 pmLIS - IAD
Nonstop8h 20mTAP AIR PORTUGAL
Deal found 5/15$480
Sat 10/58:20 pmIAD - LIS
Nonstop7h 15mTAP AIR PORTUGAL
Fri 10/115:25 pmLIS - IAD
Nonstop8h 20mTAP AIR PORTUGAL
Deal found 5/14$483
Tue 10/1510:30 pmIAD - LIS
Nonstop7h 10mTAP AIR PORTUGAL
Tue 10/2212:00 pmLIS - IAD
Nonstop8h 20mTAP AIR PORTUGAL
Deal found 5/15$485
Wed 10/165:40 pmIAD - LIS
Nonstop7h 30mTAP AIR PORTUGAL
Thu 10/3111:15 amLIS - IAD
Nonstop8h 45mTAP AIR PORTUGAL
Deal found 5/15$495
Sun 10/1310:20 pmIAD - LIS
Nonstop7h 15mTAP AIR PORTUGAL
Tue 10/2212:00 pmLIS - IAD
Nonstop8h 20mTAP AIR PORTUGAL
Deal found 5/15$499
Sat 10/128:20 pmIAD - LIS
Nonstop7h 15mTAP AIR PORTUGAL
Tue 10/2212:00 pmLIS - IAD
Nonstop8h 20mTAP AIR PORTUGAL
Deal found 5/15$525
Tue 9/2410:30 pmIAD - LIS
Nonstop7h 10mTAP AIR PORTUGAL
Tue 10/812:00 pmLIS - IAD
Nonstop8h 20mTAP AIR PORTUGAL
Deal found 5/15$562
Sat 10/58:20 pmIAD - LIS
Nonstop7h 15mTAP AIR PORTUGAL
Tue 10/1512:00 pmLIS - IAD
Nonstop8h 20mTAP AIR PORTUGAL
Deal found 5/14$563

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 2,637,452 searches. Prices were last updated on May 16, 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.
Sat 5/256:50 pmIAD - OPO
1 stop20h 25mPLAY
Tue 6/48:55 pmOPO - IAD
1 stop25h 45mPLAY
Deal found 5/15$785
Tue 6/258:45 pmIAD - FAO
1 stop30h 25mSWISS
Wed 9/189:25 amFAO - IAD
1 stop35h 50mSWISS
Deal found 5/14$811
Tue 6/49:20 pmIAD - OPO
1 stop13h 10mDelta
Fri 6/79:15 amOPO - IAD
1 stop11h 55mDelta
Deal found 5/16$823
Tue 6/49:20 pmIAD - OPO
1 stop13h 10mDelta
Sun 6/911:25 amOPO - IAD
1 stop33h 10mDelta
Deal found 5/16$825
Sat 6/112:35 pmIAD - OPO
2 stops21h 55mDelta
Wed 6/59:15 amOPO - IAD
1 stop11h 55mDelta
Deal found 5/16$828
Mon 6/175:03 pmIAD - OPO
2 stops17h 27mDelta
Mon 6/245:00 amOPO - IAD
1 stop15h 35mDelta
Deal found 5/16$830
Sun 6/239:20 pmIAD - OPO
1 stop13h 10mDelta
Wed 7/39:15 amOPO - IAD
2 stops17h 33mDelta
Deal found 5/15$833
Tue 6/255:50 pmIAD - FAO
1 stop20h 40mKLM
Wed 8/217:50 amFAO - IAD
1 stop13h 10mKLM
Deal found 5/14$834
Tue 6/49:20 pmIAD - OPO
1 stop13h 10mDelta
Thu 6/64:20 pmOPO - IAD
1 stop28h 50mDelta
Deal found 5/16$835

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 2,637,452 searches. Data last updated May 16, 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.
Fri 11/810:30 pmIAD - FAO
1 stop30h 55mTAP AIR PORTUGAL
Sat 11/166:05 amFAO - IAD
1 stop13h 30mTAP AIR PORTUGAL
Deal found 5/14$471
Wed 12/116:05 pmIAD - FAO
1 stop12h 50mUnited Airlines
Thu 2/2712:45 pmFAO - IAD
2 stops37h 20mUnited Airlines
Deal found 5/16$548
Wed 12/116:05 pmIAD - FAO
1 stop12h 50mLufthansa
Thu 2/2712:45 pmFAO - IAD
1 stop32h 05mLufthansa
Deal found 5/15$552
Wed 12/116:00 pmIAD - FAO
2 stops19h 25mKLM
Thu 2/278:15 pmFAO - IAD
1 stop24h 30mKLM
Deal found 5/15$561
Tue 11/265:30 pmIAD - FAO
1 stop17h 15mTAP AIR PORTUGAL
Tue 12/34:35 pmFAO - IAD
1 stop33h 30mTAP AIR PORTUGAL
Deal found 5/15$562
Sat 11/95:30 pmIAD - FNC
1 stop24h 25mTAP AIR PORTUGAL
Mon 11/185:35 pmFNC - IAD
1 stop25h 05mTAP AIR PORTUGAL
Deal found 5/16$565
Mon 9/910:25 pmIAD - PDL
1 stop21h 20mTAP AIR PORTUGAL
Mon 9/166:30 amPDL - IAD
1 stop12h 45mTAP AIR PORTUGAL
Deal found 5/15$591
Wed 10/28:45 pmIAD - OPO
1 stop30h 10mSWISS
Mon 10/142:35 pmOPO - IAD
2 stops30h 40mSWISS
Deal found 5/15$601
Tue 11/2612:30 pmIAD - FAO
2 stops16h 00mKLM
Tue 12/37:45 pmFAO - IAD
1 stop25h 00mKLM
Deal found 5/15$601

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 2,637,452 searches. Data last updated May 16, 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.
Fri 8/97:55 pmIAD - LIS
Nonstop7h 15mTAP AIR PORTUGAL
Fri 11/155:15 pmLIS - IAD
Nonstop8h 45mTAP AIR PORTUGAL
Deal found 5/15$861
Sun 7/2810:20 pmIAD - LIS
Nonstop7h 15mTAP AIR PORTUGAL
Sat 10/512:00 pmLIS - IAD
Nonstop8h 20mTAP AIR PORTUGAL
Deal found 5/15$879
Mon 8/125:35 pmIAD - LIS
Nonstop7h 30mTAP AIR PORTUGAL
Sun 8/2512:35 pmLIS - IAD
Nonstop8h 20mTAP AIR PORTUGAL
Deal found 5/15$886
Mon 7/2210:25 pmIAD - LIS
Nonstop7h 15mTAP AIR PORTUGAL
Tue 7/3011:55 amLIS - IAD
Nonstop8h 25mTAP AIR PORTUGAL
Deal found 5/15$893
Sat 7/278:20 pmIAD - LIS
Nonstop7h 15mTAP AIR PORTUGAL
Sat 9/2812:00 pmLIS - IAD
Nonstop8h 20mTAP AIR PORTUGAL
Deal found 5/15$909
Tue 7/910:30 pmIAD - LIS
Nonstop7h 10mTAP AIR PORTUGAL
Tue 7/1611:55 amLIS - IAD
Nonstop8h 25mTAP AIR PORTUGAL
Deal found 5/15$919
Sun 8/1110:20 pmIAD - LIS
Nonstop7h 15mTAP AIR PORTUGAL
Thu 8/155:05 pmLIS - IAD
Nonstop8h 20mTAP AIR PORTUGAL
Deal found 5/14$920
Mon 7/810:25 pmIAD - LIS
Nonstop7h 15mTAP AIR PORTUGAL
Tue 7/3011:55 amLIS - IAD
Nonstop8h 25mTAP AIR PORTUGAL
Deal found 5/15$921
Mon 7/810:25 pmIAD - LIS
Nonstop7h 15mTAP AIR PORTUGAL
Tue 7/1611:55 amLIS - IAD
Nonstop8h 25mTAP AIR PORTUGAL
Deal found 5/16$923

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 2,637,452 searches. Data last updated May 16, 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.
Sat 5/256:50 pmIAD - OPO
1 stop20h 25mPLAY
Tue 6/48:55 pmOPO - IAD
1 stop25h 45mPLAY
Deal found 5/15$785
Sun 5/264:59 pmIAD - OPO
2 stops17h 31mDelta
Thu 5/305:00 amOPO - IAD
1 stop15h 35mDelta
Deal found 5/15$830
Sun 5/265:25 pmIAD - OPO
1 stop17h 15mKLM
Thu 5/305:00 amOPO - IAD
1 stop15h 35mKLM
Deal found 5/15$838
Sun 5/264:59 pmIAD - OPO
2 stops17h 31mDelta
Thu 5/3011:25 amOPO - IAD
2 stops17h 30mDelta
Deal found 5/15$840
Sun 5/2612:35 pmIAD - OPO
2 stops17h 05mDelta
Thu 5/305:00 amOPO - IAD
1 stop15h 35mDelta
Deal found 5/16$842
Tue 5/215:50 pmIAD - OPO
1 stop16h 50mDelta
Tue 5/285:00 amOPO - IAD
2 stops17h 21mDelta
Deal found 5/15$848
Sat 5/256:50 pmIAD - OPO
1 stop20h 25mPLAY
Thu 5/309:10 pmOPO - IAD
1 stop25h 30mPLAY
Deal found 5/15$873
Sat 5/256:50 pmIAD - OPO
1 stop20h 25mPLAY
Thu 5/309:10 pmOPO - IAD
1 stop25h 30mPLAY
Deal found 5/15$880
Sat 5/254:59 pmIAD - OPO
2 stops41h 31mAir France
Fri 5/319:15 amOPO - IAD
1 stop14h 55mAir France
Deal found 5/16$885

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 2,637,452 searches. Data last updated May 16, 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.
Mon 10/148:30 pmIAD - LIS
2 stops19h 45mMultiple Airlines
Deal found 5/15$307
Sun 6/306:50 pmIAD - LIS
3 stops47h 45mMultiple Airlines
Deal found 5/15$313
Mon 9/308:30 pmIAD - LIS
2 stops18h 35mMultiple Airlines
Deal found 5/15$321
Sun 10/206:50 pmIAD - LIS
1 stop20h 30mPLAY
Deal found 5/15$324
Sun 10/136:50 pmIAD - LIS
1 stop20h 30mPLAY
Deal found 5/15$328
Mon 9/236:50 pmIAD - LIS
2 stops18h 35mMultiple Airlines
Deal found 5/15$329
Thu 9/2611:15 pmIAD - LIS
2 stops41h 05mMultiple Airlines
Deal found 5/15$331
Sun 6/306:50 pmIAD - LIS
2 stops47h 35mMultiple Airlines
Deal found 5/15$334
Mon 8/268:30 pmIAD - LIS
3 stops21h 05mMultiple Airlines
Deal found 5/15$342

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 2,637,452 searches. Data last updated May 16, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$370 - $664

Route

Depart

Return

Price

Washington, D.C. Dulles IntlLisbon Humberto Delgado

IAD - LIS

IADLIS

Washington, D.C. Dulles Intl

Sun 10/13

1 stop20h 30m

Lisbon Humberto Delgado

Mon 10/21

1 stop25h 10m

$370

Washington, D.C. Dulles IntlLisbon Humberto Delgado

IAD - LIS

IADLIS

Washington, D.C. Dulles Intl

Sun 11/3

Nonstop7h 05m

Lisbon Humberto Delgado

Mon 11/11

Nonstop8h 45m

$478

Washington, D.C. Dulles IntlLisbon Humberto Delgado

IAD - LIS

IADLIS

Washington, D.C. Dulles Intl

Sun 10/13

1 stop10h 00m

Lisbon Humberto Delgado

Thu 10/17

1 stop29h 40m

$540

Washington, D.C. Dulles IntlLisbon Humberto Delgado

IAD - LIS

IADLIS

Washington, D.C. Dulles Intl

Sun 9/15

2 stops17h 45m

Lisbon Humberto Delgado

Sun 9/22

2 stops31h 35m

$589

Washington, D.C. Dulles IntlLisbon Humberto Delgado

IAD - LIS

IADLIS

Washington, D.C. Dulles Intl

Wed 10/2

2 stops25h 05m

Lisbon Humberto Delgado

Tue 10/15

2 stops21h 40m

$595

Washington, D.C. Dulles IntlLisbon Humberto Delgado

IAD - LIS

IADLIS

Washington, D.C. Dulles Intl

Wed 11/6

1 stop20h 10m

Lisbon Humberto Delgado

Mon 11/11

1 stop15h 50m

$648

Washington, D.C. Dulles IntlFaro

IAD - FAO

IADFAO

Washington, D.C. Dulles Intl

Tue 7/23

1 stop15h 15m

Faro

Wed 8/21

2 stops27h 04m

$650

Washington, D.C. Dulles IntlLisbon Humberto Delgado

IAD - LIS

IADLIS

Washington, D.C. Dulles Intl

Sun 11/10

Nonstop7h 20m

Lisbon Humberto Delgado

Wed 11/20

Nonstop8h 20m

$651

Washington, D.C. Dulles IntlLisbon Humberto Delgado

IAD - LIS

IADLIS

Washington, D.C. Dulles Intl

Wed 9/4

1 stop31h 00m

Lisbon Humberto Delgado

Wed 9/25

1 stop32h 50m

$664

Flights are sorted by cheapest first

Deals found on 5/15

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

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 May 16, 2024.
Read reviews from past customers who have flown PLAY, TAP AIR PORTUGAL and Royal Air Maroc 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
10,673 reviews

Crew

8.6

Overall

8.0

Comfort

7.9

Food

7.4

Entertainment

8.0

Boarding

8.2

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
10,673 reviews
8.0
Very good
10,673 reviews

Crew

8.6

Overall

8.0

Comfort

7.9

Food

7.4

Entertainment

8.0

Boarding

8.2

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
1,568 reviews
8.0
Very good
10,673 reviews

Crew

8.6

Overall

8.0

Comfort

7.9

Food

7.4

Entertainment

8.0

Boarding

8.2

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
1,994 reviews
8.0
Very good
10,673 reviews

Crew

8.6

Overall

8.0

Comfort

7.9

Food

7.4

Entertainment

8.0

Boarding

8.2

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.

7.7
Good
1,053 reviews
8.0
Very good
10,673 reviews

Crew

8.6

Overall

8.0

Comfort

7.9

Food

7.4

Entertainment

8.0

Boarding

8.2

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
1,764 reviews
8.0
Very good
10,673 reviews

Crew

8.6

Overall

8.0

Comfort

7.9

Food

7.4

Entertainment

8.0

Boarding

8.2

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 $370, but on average you can expect to pay $470.

  • 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 $918.

  • 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.

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

    Per day, 2 flights depart from Washington, D.C. Dulles Intl Airport to Portugal on average.
    Afternoon (Noon - 6pm) - 100% of flight departures

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

    PLAY, TAP AIR PORTUGAL, and Royal Air Maroc can get you from Washington, D.C. Dulles Intl Airport to Portugal in just under 7h 05m. Your travel time can differ by up to 13h 25m. 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 ($324), Royal Air Maroc ($361), and TAP AIR PORTUGAL ($377).

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

  • What are the most popular airlines that fly 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 $2,051, our data indicates the cheapest price to be $381. The most popular route (Washington, D.C. Dulles Intl - Lisbon Humberto Delgado), is priced around $440.

  • 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 5/16.

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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 2,637,452 searches. Data last updated May 16, 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$702FlexibilityNo cancel feeOn-time77%
Search Air France flights
DeltaCheapest$420Average$765FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
LufthansaCheapest$423Average$714FlexibilityNo cancel feeOn-time76%
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KLMCheapest$428Average$755FlexibilityNo cancel feeOn-time75%
Search KLM flights
Brussels AirlinesCheapest$431Average$559FlexibilityNo cancel feeOn-timeN/A
Search Brussels Airlines flights
IberiaCheapest$457Average$806FlexibilityNo cancel feeOn-time77%
Search Iberia flights
TAP AIR PORTUGALCheapest$470Average$1,009FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights
United AirlinesCheapest$485Average$1,124FlexibilityNo 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 May 16, 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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