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$833+ Cheap flights from Allentown (ABE) to Porto (OPO)

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 8/27. Fares are subject to change and may not be available on all flights or dates of travel.
ABE — OPO
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
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Cheap flight deals from Allentown to Porto

Discover tips and strategies to find the most affordable flight options for your journey from Allentown (ABE) to Porto (OPO). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated June 12, 2025.

Round-trip from

$3,011
(United Airlines)

One-way from

$833
(United Airlines)
From Allentown-Bethlehem to Porto
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One-way flight from Allentown-Bethlehem to Porto
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Find flight deals from Allentown to Porto

Cheapest flights from Allentown to Porto
Explore the most affordable flight options available from Allentown to Porto. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.

This United Airlines deal was found by Cheapflights users on 6/12. 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 6/265:35 pmABE - OPO
2 stops36h 40mUnited Airlines
Thu 7/36:00 amOPO - ABE
2 stops40h 00mUnited Airlines
Deal found 6/12$3,011

Cheapflights Fare Finder

Customize your flight search to find flights from Allentown to Porto 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 June 12, 2025.
Use the filters below to find and compare flights from Allentown to Porto that are best for you.

Fly from

Allentown

Fly to

Porto

Route

Depart

Return

Price

AllentownPorto

ABE - OPO

ABEOPO

Allentown-Bethlehem

Thu 6/26

5:35 pm-11:15 am

2 stops36h 40m

Porto

Thu 7/3

6:00 am-5:00 pm

2 stops40h 00m

$3,011

AllentownPorto

ABE - OPO

ABEOPO

Allentown-Bethlehem

Wed 8/27

6:37 am-9:20 am

2 stops21h 43m

$833

AllentownPorto

ABE - OPO

ABEOPO

Allentown-Bethlehem

Thu 8/28

12:56 pm-10:15 pm

2 stops28h 19m

$947

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/12

Best time to book a flight from Allentown to Porto

Have a flexible travel schedule? Discover the best time to fly to Porto 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 Porto

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

Currently, January is the cheapest month in which you can book a flight from Allentown to Porto (average of $523). Flying from Allentown to Porto in June is currently the most expensive (average of $1,047). 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.

Rainfall in Porto by month

Plan your trip to Porto by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Porto ranges from 0.7 - 7.7 inches per month. December is typically the wettest month, when rainfall can reach 7.7 in. July is typically the driest time to visit Porto when rainfall is around 0.7 in.

Temperature in Porto by month

Plan your trip to Porto by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Porto, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 68.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 48.2 F).

Reviews of airlines servicing Porto

Get insights into the airlines that provide service to Porto. 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 Porto. Reviews last updated June 12, 2025.
Delta
8.0
Very good
7,950 reviews

Overall

8.0

Entertainment

7.9

Food

7.3

Boarding

8.2

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,950 reviews
Delta
8.0
Very good
7,950 reviews

Overall

8.0

Entertainment

7.9

Food

7.3

Boarding

8.2

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,790 reviews
Delta
8.0
Very good
7,950 reviews

Overall

8.0

Entertainment

7.9

Food

7.3

Boarding

8.2

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

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

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Allentown to Porto 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 Porto?

    Currently, January is the cheapest month in which you can book a flight from Allentown to Porto (average of $523). Flying from Allentown to Porto in June is currently the most expensive (average of $1,047). 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

Traveling to a place near Allentown?

Book flights to Allentown if you plan to visit one of these locations
Aveiro
Coimbra
Matosinhos
Arcos de Valdevez

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