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$603+ 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 2/10. Fares are subject to change and may not be available on all flights or dates of travel.
OTP — PHL
Jan 28 — Feb 41
Wed 1/28
Wed 2/4
1 adult, Economy
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Cheap flight deals from Otopeni Intl to Philadelphia

Best flights from Otopeni Intl to Philadelphia
Discover carefully curated flight deals from Otopeni Intl to Philadelphia that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 29, 2025.

This American Airlines deal was found by Cheapflights users on 12/27. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/108:00 amOTP - PHL
1 stop15h 15mAmerican Airlines
Tue 2/177:45 pmPHL - OTP
1 stop20h 10mAmerican Airlines
Deal found 12/27$603
This British Airways deal was found by Cheapflights users on 12/27. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 1/248:05 amOTP - PHL
1 stop15h 10mBritish Airways
Wed 1/286:55 pmPHL - OTP
2 stops18h 05mBritish Airways
Deal found 12/27$606
This Iberia deal was found by Cheapflights users on 12/27. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 1/248:05 amOTP - PHL
1 stop15h 10mMultiple Airlines
Wed 1/284:44 pmPHL - OTP
2 stops20h 16mMultiple Airlines
Deal found 12/27$606
This Delta deal was found by Cheapflights users on 12/29. 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.
Mon 1/266:00 amOTP - PHL
2 stops23h 50mDelta
Mon 2/28:00 amPHL - OTP
2 stops21h 05mDelta
Deal found 12/29$609
This Iberia deal was found by Cheapflights users on 12/27. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 1/318:05 amOTP - PHL
1 stop15h 10mBritish Airways
Wed 2/46:35 pmPHL - OTP
1 stop18h 25mBritish Airways
Deal found 12/27$606
This KLM deal was found by Cheapflights users on 12/29. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 1/316:00 amOTP - PHL
2 stops19h 58mMultiple Airlines
Wed 2/45:33 pmPHL - OTP
2 stops15h 17mMultiple Airlines
Deal found 12/29$608
This Delta deal was found by Cheapflights users on 12/27. 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.
Tue 2/106:00 amOTP - PHL
2 stops23h 50mDelta
Tue 2/1710:37 amPHL - OTP
2 stops18h 28mDelta
Deal found 12/27$609
This Delta deal was found by Cheapflights users on 12/28. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 1/256:00 amOTP - PHL
2 stops24h 56mDelta
Sun 2/16:51 pmPHL - OTP
2 stops20h 59mDelta
Deal found 12/28$609

Find 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 December 29, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
1 star

Round-trip from

$603
(American Airlines)

Popular in

January

Cheapest in

February

Average price

$773
Provider with most accurate pricing for Bucharest Otopeni Intl-Philadelphia flight deals.
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Provider most trusted by Cheapflights users for Bucharest Otopeni Intl-Philadelphia flights.
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From Bucharest Otopeni Intl to Philadelphia
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Highest demand for flights based on searches. 2% potential increase in price ($19 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($20 potential savings vs. average RT price).
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Average for round-trip flights in December 2025
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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 December 29, 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

Tue 2/10

8:00 am-4:15 pm

1 stop15h 15m

Philadelphia

Tue 2/17

7:45 pm-10:55 pm

1 stop20h 10m

$603

BucharestPhiladelphia

OTP - PHL

OTPPHL

Bucharest Otopeni Intl

Sat 1/24

8:05 am-4:15 pm

1 stop15h 10m

Philadelphia

Wed 1/28

6:55 pm-8:00 pm

2 stops18h 05m

$606

BucharestPhiladelphia

OTP - PHL

OTPPHL

Bucharest Otopeni Intl

Sat 1/24

8:05 am-4:15 pm

1 stop15h 10m

Philadelphia

Wed 1/28

4:44 pm-8:00 pm

2 stops20h 16m

$606

BucharestPhiladelphia

OTP - PHL

OTPPHL

Bucharest Otopeni Intl

Sat 1/31

8:05 am-4:15 pm

1 stop15h 10m

Philadelphia

Wed 2/4

6:35 pm-8:00 pm

1 stop18h 25m

$606

BucharestPhiladelphia

OTP - PHL

OTPPHL

Bucharest Otopeni Intl

Sat 1/31

6:00 am-6:58 pm

2 stops19h 58m

Philadelphia

Wed 2/4

5:33 pm-3:50 pm

2 stops15h 17m

$608

BucharestPhiladelphia

OTP - PHL

OTPPHL

Bucharest Otopeni Intl

Mon 1/26

6:00 am-10:50 pm

2 stops23h 50m

Philadelphia

Mon 2/2

8:00 am-12:05 pm

2 stops21h 05m

$609

BucharestPhiladelphia

OTP - PHL

OTPPHL

Bucharest Otopeni Intl

Tue 2/10

6:00 am-10:50 pm

2 stops23h 50m

Philadelphia

Tue 2/17

10:37 am-12:05 pm

2 stops18h 28m

$609

BucharestPhiladelphia

OTP - PHL

OTPPHL

Bucharest Otopeni Intl

Sun 1/25

6:00 am-11:56 pm

2 stops24h 56m

Philadelphia

Sun 2/1

6:51 pm-10:50 pm

2 stops20h 59m

$609

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/27

  • 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 $273). 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.

How much does it cost to fly round-trip from Bucharest Otopeni Intl Airport to Philadelphia?

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 December 29, 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
11,066 reviews

Entertainment

6.9

Overall

7.2

Food

6.5

Boarding

7.5

Comfort

7.2

Crew

8.0

Reviews

1 / 20
10.0
Excellent

Jeremy,Dec 2025

OKC - CLT

Was an okay flight. Had extra seat empty beside me so was able to stretch a bit
American Airlines
7.2
Good
11,066 reviews
American Airlines
7.2
Good
11,066 reviews

Entertainment

6.9

Overall

7.2

Food

6.5

Boarding

7.5

Comfort

7.2

Crew

8.0

Reviews

1 / 20
10.0
Excellent

Jeremy,Dec 2025

OKC - CLT

Was an okay flight. Had extra seat empty beside me so was able to stretch a bit
British Airways
6.7
Okay
7,618 reviews
American Airlines
7.2
Good
11,066 reviews

Entertainment

6.9

Overall

7.2

Food

6.5

Boarding

7.5

Comfort

7.2

Crew

8.0

Reviews

1 / 20
10.0
Excellent

Jeremy,Dec 2025

OKC - CLT

Was an okay flight. Had extra seat empty beside me so was able to stretch a bit

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 British Airways can get you from Bucharest Otopeni Intl Airport to Philadelphia in just under 15h 10m. Your travel time can differ by up to 05m. 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 29% 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 $273). 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
Pottstown
King of Prussia
Reading
Ocean City
Cherry Hill
Lewes
Dewey Beach
Ephrata
Camden
Vineland
Milford
Dover
Elkton
Essington
Willow Grove
New Castle
Millville
Newark
Chester

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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 December 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$506Average$833FlexibilityNo cancel feeOn-time71%
British AirwaysCheapest$507Average$688FlexibilityNo cancel feeOn-time70%

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