HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Otopeni Intl

$529+ Cheap flights from Allentown (ABE) to Otopeni Intl (OTP)

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 1/15. Fares are subject to change and may not be available on all flights or dates of travel.
ABE — OTP
Jan 1 — Jan 81
Thu 1/1
Thu 1/8
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Allentown to Otopeni Intl with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Allentown to Otopeni Intl

Best flights from Allentown to Otopeni Intl
Discover carefully curated flight deals from Allentown to Otopeni Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 2, 2025.

This KLM deal was found by Cheapflights users on 11/30. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 1/1512:50 pmABE - OTP
2 stops19h 35mKLM
Thu 1/226:00 pmOTP - ABE
2 stops30h 14mKLM
Deal found 11/30$529
This Delta deal was found by Cheapflights users on 11/30. 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.
Wed 2/46:28 amABE - OTP
2 stops22h 37mDelta
Sun 2/81:55 pmOTP - ABE
2 stops34h 19mDelta
Deal found 11/30$534
This United Airlines deal was found by Cheapflights users on 11/30. 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 1/1511:30 amABE - OTP
2 stops19h 35mUnited Airlines
Thu 1/225:50 amOTP - ABE
2 stops22h 15mUnited Airlines
Deal found 11/30$659
This Delta deal was found by Cheapflights users on 11/29. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 1/2812:50 pmABE - OTP
2 stops27h 00mDelta
Sun 2/16:00 amOTP - ABE
2 stops23h 50mDelta
Deal found 11/29$534
This United Airlines deal was found by Cheapflights users on 12/2. 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 1/1611:30 amABE - OTP
2 stops19h 40mUnited Airlines
Fri 1/235:55 amOTP - ABE
2 stops22h 10mUnited Airlines
Deal found 12/2$660
This Mytrip deal was found by Cheapflights users on 11/30. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 1/158:30 amABE - OTP
3 stops28h 50mMultiple Airlines
Thu 1/227:40 amOTP - ABE
3 stops45h 21mMultiple Airlines
Deal found 11/30$2,349

Find flight deals from Allentown to Otopeni Intl

Discover tips and strategies to find the most affordable flight options for your journey from Allentown (ABE) to Otopeni Intl (OTP). 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 December 2, 2025.

Round-trip from

$529
(KLM)
From Allentown-Bethlehem to Bucharest Otopeni Intl
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Allentown to Otopeni Intl 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 December 2, 2025.
Use the filters below to find and compare flights from Allentown to Bucharest Otopeni Intl Airport that are best for you.

Fly from

Allentown

Fly to

Otopeni Intl

Route

Depart

Return

Price

AllentownBucharest

ABE - OTP

ABEOTP

Allentown-Bethlehem

Thu 1/15

12:50 pm-3:25 pm

2 stops19h 35m

Bucharest Otopeni Intl

Thu 1/22

6:00 pm-5:14 pm

2 stops30h 14m

$529

AllentownBucharest

ABE - OTP

ABEOTP

Allentown-Bethlehem

Wed 2/4

6:28 am-12:05 pm

2 stops22h 37m

Bucharest Otopeni Intl

Sun 2/8

1:55 pm-5:14 pm

2 stops34h 19m

$534

AllentownBucharest

ABE - OTP

ABEOTP

Allentown-Bethlehem

Wed 1/28

12:50 pm-10:50 pm

2 stops27h 00m

Bucharest Otopeni Intl

Sun 2/1

6:00 am-10:50 pm

2 stops23h 50m

$534

AllentownBucharest

ABE - OTP

ABEOTP

Allentown-Bethlehem

Thu 1/15

11:30 am-2:05 pm

2 stops19h 35m

Bucharest Otopeni Intl

Thu 1/22

5:50 am-9:05 pm

2 stops22h 15m

$659

AllentownBucharest

ABE - OTP

ABEOTP

Allentown-Bethlehem

Fri 1/16

11:30 am-2:10 pm

2 stops19h 40m

Bucharest Otopeni Intl

Fri 1/23

5:55 am-9:05 pm

2 stops22h 10m

$660

AllentownBucharest

ABE - OTP

ABEOTP

Allentown-Bethlehem

Thu 1/15

8:30 am-8:20 pm

3 stops28h 50m

Bucharest Otopeni Intl

Thu 1/22

7:40 am-10:01 pm

3 stops45h 21m

$2,349

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/30

Best time to book a flight from Allentown to Otopeni Intl

Have a flexible travel schedule? Discover the best time to fly to Otopeni Intl 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 Bucharest Otopeni Intl Airport

What is the cheapest month to book a flight from Allentown to Bucharest Otopeni Intl Airport?

Currently, November is the cheapest month in which you can book a flight from Allentown to Bucharest Otopeni Intl Airport (average of $356). Flying from Allentown to Bucharest Otopeni Intl Airport in June is currently the most expensive (average of $573). 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 Otopeni Intl. 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 Bucharest Otopeni Intl?

    Located just 3.9 mi from the city center, Allentown-Bethlehem is the airport most travelers will use when flying to Bucharest Otopeni Intl from Allentown. Booking flights from Allentown-Bethlehem (ABE) to Bucharest Otopeni Intl should be relatively easy as there are 0 daily outbound flights to Bucharest Otopeni Intl from 0 different airlines.

  • How long is the flight from Allentown to Bucharest Otopeni Intl Airport?

    A quick flight from Allentown to Bucharest Otopeni Intl Airport can take about 19h 35m. KLM provides one of the quickest options available for as low as $529. Airlines will cover a distance of 4803 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

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

  • How can I find direct flights from Allentown to Otopeni Intl?

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

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

    Yes. Cheapflights offers flight deals from Allentown to Otopeni Intl 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 Bucharest Otopeni Intl Airport?

    Currently, November is the cheapest month in which you can book a flight from Allentown to Bucharest Otopeni Intl Airport (average of $356). Flying from Allentown to Bucharest Otopeni Intl Airport in June is currently the most expensive (average of $573). 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 Bucharest Otopeni Intl Airport?

Book flights to Bucharest Otopeni Intl Airport if you plan to visit one of these locations
Otopeni

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.