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$500+ 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 2/25. Fares are subject to change and may not be available on all flights or dates of travel.
ABE — LIS
Feb 28 — Mar 71
Sat 2/28
Sat 3/7
1 adult, Economy
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Cheap 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 January 29, 2026.

This United Airlines deal was found by Cheapflights users on 1/26. 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.
Wed 2/256:28 am
ABE
-
LIS
2 stops22h 47m
United Airlines
Sun 3/15:00 am
LIS
-
ABE
2 stops44h 53m
United Airlines
Deal found 1/26$500
This United Airlines deal was found by Cheapflights users on 1/27. 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 4/1610:35 am
ABE
-
LIS
2 stops23h 50m
United Airlines
Wed 4/225:05 am
LIS
-
ABE
2 stops33h 53m
United Airlines
Deal found 1/27$697
This United Airlines deal was found by Cheapflights users on 1/28. 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 2/611:30 am
ABE
-
OPO
2 stops19h 10m
United Airlines
Tue 2/106:00 am
OPO
-
ABE
2 stops20h 05m
United Airlines
Deal found 1/28$719
This United Airlines deal was found by Cheapflights users on 1/27. 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.
Sun 4/266:15 am
ABE
-
LIS
2 stops28h 15m
United Airlines
Mon 5/411:25 am
LIS
-
ABE
2 stops38h 33m
United Airlines
Deal found 1/27$776
This United Airlines deal was found by Cheapflights users on 1/26. 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.
Wed 4/16:15 am
ABE
-
LIS
2 stops28h 20m
United Airlines
Mon 4/65:05 am
LIS
-
ABE
2 stops33h 53m
United Airlines
Deal found 1/26$876
This United Airlines deal was found by Cheapflights users on 1/27. 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.
Fri 4/1710:35 am
ABE
-
LIS
2 stops20h 10m
United Airlines
Wed 4/227:25 am
LIS
-
ABE
2 stops18h 52m
United Airlines
Deal found 1/27$881
This United Airlines deal was found by Cheapflights users on 1/26. 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.
Tue 3/316:15 am
ABE
-
LIS
2 stops23h 15m
United Airlines
Sun 4/511:25 am
LIS
-
ABE
2 stops51h 33m
United Airlines
Deal found 1/26$984
This Delta deal was found by Cheapflights users on 1/26. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/85:40 pm
ABE
-
LIS
2 stops20h 05m
Delta
Mon 8/175:35 am
LIS
-
ABE
2 stops22h 21m
Delta
Deal found 1/26$1,052
This United Airlines deal was found by Cheapflights users on 1/26. 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.
Tue 3/316:15 am
ABE
-
LIS
2 stops21h 05m
United Airlines
Mon 4/66:15 am
LIS
-
ABE
2 stops32h 43m
United Airlines
Deal found 1/26$1,055
This United Airlines deal was found by Cheapflights users on 1/26. 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.
Wed 4/16:15 am
ABE
-
LIS
2 stops35h 30m
United Airlines
Sun 4/511:25 am
LIS
-
ABE
2 stops51h 33m
United Airlines
Deal found 1/26$1,095
This Delta deal was found by Cheapflights users on 1/26. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/65:40 pm
ABE
-
LIS
2 stops20h 05m
Delta
Mon 8/175:35 am
LIS
-
ABE
2 stops22h 21m
Delta
Deal found 1/26$1,192
This Delta deal was found by Cheapflights users on 1/27. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/142:00 pm
ABE
-
OPO
2 stops15h 30m
Delta
Thu 2/195:00 am
OPO
-
ABE
2 stops17h 12m
Delta
Deal found 1/27$1,232

Find flight deals from Allentown to Portugal

Keep the following information in mind while searching for Allentown to Portugal flight deals. Data was last updated January 29, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$500
(United Airlines)
Provider with most accurate pricing for Allentown-Bethlehem-Lisbon Humberto Delgado flight deals.
Search Deals
Provider most trusted by Cheapflights users for Allentown-Bethlehem-Lisbon Humberto Delgado flights.
Search Deals
From Allentown-Bethlehem to Portugal
Search Deals

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 January 29, 2026.
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

Wed 2/25

6:28 am-10:15 am

2 stops22h 47m

Lisbon Humberto Delgado

Sun 3/1

5:00 am-8:53 pm

2 stops44h 53m

$500

AllentownLisbon

ABE - LIS

ABELIS

Allentown-Bethlehem

Thu 4/16

10:35 am-3:25 pm

2 stops23h 50m

Lisbon Humberto Delgado

Wed 4/22

5:05 am-9:58 am

2 stops33h 53m

$697

AllentownLisbon

ABE - LIS

ABELIS

Allentown-Bethlehem

Wed 4/1

6:15 am-3:35 pm

2 stops28h 20m

Lisbon Humberto Delgado

Mon 4/6

5:05 am-9:58 am

2 stops33h 53m

$876

AllentownLisbon

ABE - LIS

ABELIS

Allentown-Bethlehem

Fri 4/17

10:35 am-11:45 am

2 stops20h 10m

Lisbon Humberto Delgado

Wed 4/22

7:25 am-9:17 pm

2 stops18h 52m

$881

AllentownLisbon

ABE - LIS

ABELIS

Allentown-Bethlehem

Tue 3/31

6:15 am-10:30 am

2 stops23h 15m

Lisbon Humberto Delgado

Sun 4/5

11:25 am-9:58 am

2 stops51h 33m

$984

AllentownLisbon

ABE - LIS

ABELIS

Allentown-Bethlehem

Tue 3/31

6:15 am-8:20 am

2 stops21h 05m

Lisbon Humberto Delgado

Mon 4/6

6:15 am-9:58 am

2 stops32h 43m

$1,055

AllentownLisbon

ABE - LIS

ABELIS

Allentown-Bethlehem

Wed 4/1

6:15 am-10:45 pm

2 stops35h 30m

Lisbon Humberto Delgado

Sun 4/5

11:25 am-9:58 am

2 stops51h 33m

$1,095

AllentownPorto

ABE - OPO

ABEOPO

Allentown-Bethlehem

Sat 2/14

2:00 pm-10:30 am

2 stops15h 30m

Porto

Thu 2/19

5:00 am-5:12 pm

2 stops17h 12m

$1,232

AllentownLisbon

ABE - LIS

ABELIS

Allentown-Bethlehem

Sat 3/14

6:20 am-10:15 am

2 stops23h 55m

Lisbon Humberto Delgado

Sat 3/21

5:00 am-9:56 am

2 stops32h 56m

$1,243

AllentownLisbon

ABE - LIS

ABELIS

Allentown-Bethlehem

Fri 3/13

6:51 pm-10:15 am

2 stops35h 24m

Lisbon Humberto Delgado

Fri 3/20

5:00 am-9:56 am

2 stops32h 56m

$1,245

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/27

Showing 1-10 of 13 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, April is the cheapest month in which you can book a flight from Allentown to Portugal (average of $399). Flying from Allentown to Portugal in July is currently the most expensive (average of $491). 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.

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 30m. The time it takes to get you to your destination can typically vary by up to 7h 17m. Airlines will cover a distance of 3391 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, April is the cheapest month in which you can book a flight from Allentown to Portugal (average of $399). Flying from Allentown to Portugal in July is currently the most expensive (average of $491). 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

Browse thousands of different options on Cheapflights for your next trip

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