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$581+ Cheap flights from Allentown (ABE) to Portugal

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/9. Fares are subject to change and may not be available on all flights or dates of travel.
ABE — LIS
Nov 28 — Dec 51
Fri 11/28
Fri 12/5
1 adult, Economy
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Cheap flight deals from Allentown to Portugal

Keep the following information in mind while searching for Allentown to Portugal flight deals. Data was last updated October 29, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$581
(United Airlines)
Provider with most accurate pricing for Allentown-Bethlehem-Lisbon Humberto Delgado flight deals.
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Provider most trusted by Cheapflights users for Allentown-Bethlehem-Lisbon Humberto Delgado flights.
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From Allentown-Bethlehem to Portugal
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Find flight deals from Allentown to Portugal

Cheapest flights from Allentown to Portugal
Explore the most affordable flight options available from Allentown to Portugal. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 29, 2025.

This United Airlines deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/111:00 pmABE - LIS
2 stops16h 15mUnited Airlines
Thu 12/1810:55 amLIS - ABE
2 stops34h 35mUnited Airlines
Deal found 10/27$624
This United Airlines deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/121:00 pmABE - LIS
2 stops16h 15mUnited Airlines
Fri 12/1911:55 amLIS - ABE
2 stops31h 00mUnited Airlines
Deal found 10/28$710
This United Airlines deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/246:32 amABE - LIS
2 stops22h 43mUnited Airlines
Mon 12/17:50 pmLIS - ABE
2 stops30h 56mUnited Airlines
Deal found 10/27$839
This United Airlines deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/292:30 pmABE - LIS
2 stops37h 50mUnited Airlines
Fri 1/211:55 amLIS - ABE
2 stops31h 00mUnited Airlines
Deal found 10/29$1,748

Cheapflights Fare Finder

 
Customize your flight search to find flights from Allentown 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 2,558,603 searches. Data last updated October 29, 2025.
Use the filters below to find and compare flights from Allentown to Portugal that are best for you.

Fly from

Allentown

Fly to

Portugal

Route

Depart

Return

Price

AllentownLisbon

ABE - LIS

ABELIS

Allentown-Bethlehem

Fri 1/9

11:30 am-8:10 am

2 stops15h 40m

Lisbon Humberto Delgado

Tue 1/20

11:20 am-4:22 pm

2 stops34h 02m

$581

AllentownLisbon

ABE - LIS

ABELIS

Allentown-Bethlehem

Thu 12/11

1:00 pm-10:15 am

2 stops16h 15m

Lisbon Humberto Delgado

Thu 12/18

10:55 am-4:30 pm

2 stops34h 35m

$624

AllentownLisbon

ABE - LIS

ABELIS

Allentown-Bethlehem

Fri 12/12

1:00 pm-10:15 am

2 stops16h 15m

Lisbon Humberto Delgado

Fri 12/19

11:55 am-1:55 pm

2 stops31h 00m

$710

AllentownLisbon

ABE - LIS

ABELIS

Allentown-Bethlehem

Fri 3/27

6:30 am-3:10 pm

2 stops28h 40m

Lisbon Humberto Delgado

Tue 3/31

9:50 am-10:52 pm

2 stops18h 02m

$832

AllentownLisbon

ABE - LIS

ABELIS

Allentown-Bethlehem

Mon 11/24

6:32 am-10:15 am

2 stops22h 43m

Lisbon Humberto Delgado

Mon 12/1

7:50 pm-9:46 pm

2 stops30h 56m

$839

AllentownLisbon

ABE - LIS

ABELIS

Allentown-Bethlehem

Fri 3/27

10:33 am-8:10 am

2 stops17h 37m

Lisbon Humberto Delgado

Tue 3/31

5:05 am-9:47 pm

2 stops21h 42m

$853

AllentownPorto

ABE - OPO

ABEOPO

Allentown-Bethlehem

Fri 3/27

10:33 am-9:30 am

2 stops18h 57m

Porto

Tue 3/31

6:00 am-9:47 pm

2 stops20h 47m

$872

AllentownPorto

ABE - OPO

ABEOPO

Allentown-Bethlehem

Fri 4/17

5:32 pm-9:45 am

2 stops35h 13m

Porto

Thu 4/30

6:00 am-9:47 pm

2 stops20h 47m

$1,052

AllentownPorto

ABE - OPO

ABEOPO

Allentown-Bethlehem

Fri 4/17

11:50 am-9:45 am

2 stops16h 55m

Porto

Thu 4/30

6:00 am-9:47 pm

3 stops20h 47m

$1,731

AllentownLisbon

ABE - LIS

ABELIS

Allentown-Bethlehem

Mon 12/29

2:30 pm-9:20 am

2 stops37h 50m

Lisbon Humberto Delgado

Fri 1/2

11:55 am-1:55 pm

2 stops31h 00m

$1,748

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/27

Showing 1-10 of 16 results
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Best time to book a flight from Allentown to Portugal

Have a flexible travel schedule? Discover the best time to fly to Portugal from Allentown 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.

Cheapflights Insights

Everything you need to know about your flight from Allentown to Portugal

What is the cheapest month to book a flight from Allentown to Portugal?

Currently, November is the cheapest month in which you can book a flight from Allentown to Portugal (average of $409). Flying from Allentown to Portugal in July is currently the most expensive (average of $483). 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.

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

Find hourly flight availability from Allentown 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 October 29, 2025.

Unlike at noon, when flights are generally more expensive, you can save up to 77% on flights from Allentown to Portugal by exploring options for tickets in the evening.

Related info for your journey

Find useful and relevant information for your journey from Allentown to Portugal. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Allentown to Portugal?

    Most people fly from Allentown-Bethlehem (ABE) if they book a flight from Allentown to Portugal. Allentown-Bethlehem is conveniently located just 3.9 mi from Allentown’s city center.

  • How long is the flight from Allentown to Portugal?

    Airlines like United Airlines and Delta fly from Allentown to Portugal in about 15h 40m. The time it takes to get you to your destination can typically vary by up to 13h. Airlines will cover a distance of 3437 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the most popular routes from Allentown to Portugal?

    When deciding which route to take from Allentown to Portugal consider Allentown-Bethlehem - Lisbon Humberto Delgado, Allentown-Bethlehem - Porto or Allentown-Bethlehem - Ponta Delgada Nordela as they are the most popular.

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

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

  • How can I find direct flights from Allentown to Portugal?

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

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

    Yes. Cheapflights offers flight deals from Allentown 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.

  • What is the cheapest month to book a flight from Allentown to Portugal?

    Currently, November is the cheapest month in which you can book a flight from Allentown to Portugal (average of $409). Flying from Allentown to Portugal in July is currently the most expensive (average of $483). 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.

See more FAQs

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