HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Philadelphia

$611+ Cheap flights from Otopeni Intl (OTP) to Philadelphia (PHL)

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 1/23. Fares are subject to change and may not be available on all flights or dates of travel.
OTP — PHL
Dec 15 — Dec 221
Mon 12/15
Mon 12/22
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Otopeni Intl to Philadelphia 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 Otopeni Intl to Philadelphia

Discover tips and strategies to find the most affordable flight options for your journey from Otopeni Intl (OTP) to Philadelphia (PHL). 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 November 15, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
1 star

Round-trip from

$611
(Expedia)

Popular in

January

Cheapest in

February

Average price

$769
Provider with most accurate pricing for Bucharest Otopeni Intl-Philadelphia flight deals.
Search Deals
Provider most trusted by Cheapflights users for Bucharest Otopeni Intl-Philadelphia flights.
Search Deals
From Bucharest Otopeni Intl to Philadelphia
Search Deals
Highest demand for flights based on searches. 4% potential increase in price ($30 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($20 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
Search Deals

Find flight deals from Otopeni Intl to Philadelphia

Cheapest flights from Otopeni Intl to Philadelphia
Explore the most affordable flight options available from Otopeni Intl to Philadelphia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 15, 2025.

This United Airlines deal was found by Cheapflights users on 11/14. 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 11/242:50 pmOTP - PHL
2 stops39h 13mUnited Airlines
Tue 4/145:35 pmPHL - OTP
1 stop15h 55mUnited Airlines
Deal found 11/14$657
This American Airlines deal was found by Cheapflights users on 11/12. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/48:00 amOTP - PHL
2 stops22h 55mAmerican Airlines
Mon 12/87:50 pmPHL - OTP
1 stop20h 10mAmerican Airlines
Deal found 11/12$708
This Delta deal was found by Cheapflights users on 11/13. 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 12/46:00 amOTP - PHL
2 stops19h 12mDelta
Mon 12/810:32 amPHL - OTP
2 stops18h 33mDelta
Deal found 11/13$715
This British Airways deal was found by Cheapflights users on 11/13. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/48:00 amOTP - PHL
1 stop15h 15mBritish Airways
Mon 12/86:35 pmPHL - OTP
1 stop13h 55mBritish Airways
Deal found 11/13$729
This British Airways deal was found by Cheapflights users on 11/14. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/244:00 pmOTP - PHL
1 stop28h 25mBritish Airways
Tue 4/146:45 pmPHL - OTP
1 stop13h 40mBritish Airways
Deal found 11/14$735
This Air Canada deal was found by Cheapflights users on 11/14. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/246:55 amOTP - PHL
3 stops22h 51mAir Canada
Tue 4/143:30 pmPHL - OTP
2 stops20h 05mAir Canada
Deal found 11/14$771
This United Airlines deal was found by Cheapflights users on 11/14. 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.
Sat 12/202:50 pmOTP - PHL
2 stops54h 17mUnited Airlines
Tue 1/67:45 pmPHL - OTP
2 stops33h 45mUnited Airlines
Deal found 11/14$819

Cheapflights Fare Finder

 
Customize your flight search to find flights from Otopeni Intl to Philadelphia 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 November 15, 2025.
Use the filters below to find and compare flights from Bucharest Otopeni Intl Airport to Philadelphia that are best for you.

Fly from

Otopeni Intl

Fly to

Philadelphia

Route

Depart

Return

Price

BucharestPhiladelphia

OTP - PHL

OTPPHL

Bucharest Otopeni Intl

Fri 1/23

6:30 am-2:47 pm

2 stops39h 17m

Philadelphia

Sat 2/7

3:30 pm-12:30 am

2 stops50h 00m

$611

BucharestPhiladelphia

OTP - PHL

OTPPHL

Bucharest Otopeni Intl

Fri 1/23

8:00 am-4:15 pm

1 stop15h 15m

Philadelphia

Sat 2/7

6:35 pm-11:45 pm

1 stop22h 10m

$674

BucharestPhiladelphia

OTP - PHL

OTPPHL

Bucharest Otopeni Intl

Thu 12/4

8:00 am-11:55 pm

2 stops22h 55m

Philadelphia

Mon 12/8

7:50 pm-11:00 pm

1 stop20h 10m

$708

BucharestPhiladelphia

OTP - PHL

OTPPHL

Bucharest Otopeni Intl

Thu 12/4

6:00 am-6:12 pm

2 stops19h 12m

Philadelphia

Mon 12/8

10:32 am-12:05 pm

2 stops18h 33m

$715

BucharestPhiladelphia

OTP - PHL

OTPPHL

Bucharest Otopeni Intl

Thu 12/4

8:00 am-4:15 pm

1 stop15h 15m

Philadelphia

Mon 12/8

6:35 pm-3:30 pm

1 stop13h 55m

$729

BucharestPhiladelphia

OTP - PHL

OTPPHL

Bucharest Otopeni Intl

Sat 12/20

2:50 pm-2:07 pm

2 stops54h 17m

Philadelphia

Tue 1/6

7:45 pm-12:30 pm

2 stops33h 45m

$819

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/14

  • Most accurate provider: When it comes to deals on Bucharest Otopeni Intl Airport-Philadelphia flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Bucharest Otopeni Intl Airport-Philadelphia flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Bucharest Otopeni Intl Airport-Philadelphia flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Bucharest Otopeni Intl Airport-Philadelphia flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Bucharest Otopeni Intl Airport-Philadelphia flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Otopeni Intl to Philadelphia

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

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

Currently, July is the cheapest month in which you can book a flight from Bucharest Otopeni Intl Airport to Philadelphia (average of $284). Flying from Bucharest Otopeni Intl Airport to Philadelphia in December is currently the most expensive (average of $504). 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.

Reviews of airlines servicing Philadelphia

Get insights into the airlines that provide service to Philadelphia. 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 Philadelphia. Reviews last updated November 15, 2025.
Peruse reviews from past customers who have flown with American Airlines and British Airways from Bucharest Otopeni Intl Airport to Philadelphia to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
American Airlines
7.2
Good
11,050 reviews

Overall

7.2

Food

6.4

Boarding

7.5

Crew

8.0

Comfort

7.2

Entertainment

6.9

Reviews

1 / 20
8.0
Excellent

Monica,Nov 2025

JAC - DFW

At least there was an option of entertainment on this flight.
American Airlines
7.2
Good
11,050 reviews
American Airlines
7.2
Good
11,050 reviews

Overall

7.2

Food

6.4

Boarding

7.5

Crew

8.0

Comfort

7.2

Entertainment

6.9

Reviews

1 / 20
8.0
Excellent

Monica,Nov 2025

JAC - DFW

At least there was an option of entertainment on this flight.
British Airways
6.7
Okay
7,522 reviews
American Airlines
7.2
Good
11,050 reviews

Overall

7.2

Food

6.4

Boarding

7.5

Crew

8.0

Comfort

7.2

Entertainment

6.9

Reviews

1 / 20
8.0
Excellent

Monica,Nov 2025

JAC - DFW

At least there was an option of entertainment on this flight.

Related info for your journey

Find useful and relevant information for your journey from Otopeni Intl to Philadelphia. 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 into for flights to Philadelphia from Bucharest Otopeni Intl?

    Philadelphia (PHL) is the airport you will fly into if you book a flight from Bucharest Otopeni Intl to Philadelphia. You should not have trouble finding flights to Philadelphia from Bucharest Otopeni Intl; the airport handles an average of 0 inbound flights from Bucharest Otopeni Intl per day. You should also have plenty of airline options to choose from since 2 airlines have flights to the Philadelphia airport from Bucharest Otopeni Intl. It is only a 7.0 mi journey from Philadelphia (PHL) to Philadelphia’s city center.

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

    American Airlines and Delta can get you from Bucharest Otopeni Intl Airport to Philadelphia in just under 15h 15m. Your travel time can differ by up to 3h 57m. The distance from Bucharest Otopeni Intl Airport to Philadelphia is about 4831 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines flying from Bucharest Otopeni Intl Airport to Philadelphia round-trip?

    Cheapflights users have booked flights from Bucharest Otopeni Intl Airport to Philadelphia round-trip from $506. Another airline that can offer you cheap pricing is British Airways. American Airlines is currently priced 28% below the average price you’ll pay for this route.

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

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

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

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

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

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

    Currently, July is the cheapest month in which you can book a flight from Bucharest Otopeni Intl Airport to Philadelphia (average of $284). Flying from Bucharest Otopeni Intl Airport to Philadelphia in December is currently the most expensive (average of $504). 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 Philadelphia?

Book flights to Philadelphia if you plan to visit one of these locations
Wildwood
King of Prussia
Pottstown
Reading
Ocean City
Cherry Hill
Dewey Beach
Ephrata
Camden
Vineland
Milford
Dover
Elkton
Essington
Willow Grove
New Castle
Newark
Millville
Chester
Exton

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.

Top 2 airlines flying from Otopeni Intl to Philadelphia

Discover the top 2 airlines that operate flights from Otopeni Intl to Philadelphia. 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 2,558,603 searches. Data last updated November 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$506Average$833FlexibilityNo cancel feeOn-time71%
British AirwaysCheapest$507Average$688FlexibilityNo cancel feeOn-time70%

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.