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$378+ Cheap flights from Otopeni Intl (OTP) to Philadelphia (PHL)

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 5/11. Fares are subject to change and may not be available on all flights or dates of travel.
OTP — PHL
Apr 6 — Apr 131
Mon 4/6
Mon 4/13
1 adult, Economy
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Cheap 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 March 7, 2026.

This United Airlines deal was found by Cheapflights users on 3/3. 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 4/236:05 am
OTP
-
PHL
1 stop17h 00m
United Airlines
Wed 4/295:40 pm
PHL
-
OTP
1 stop15h 40m
United Airlines
Deal found 3/3$638
This United Airlines deal was found by Cheapflights users on 3/4. 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 4/236:05 am
OTP
-
PHL
2 stops15h 41m
United Airlines
Thu 4/303:10 pm
PHL
-
OTP
2 stops18h 20m
United Airlines
Deal found 3/4$671
This United Airlines deal was found by Cheapflights users on 3/4. 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 6/76:05 am
OTP
-
PHL
2 stops34h 40m
United Airlines
Sun 9/69:52 am
PHL
-
OTP
2 stops19h 08m
United Airlines
Deal found 3/4$673
This United Airlines deal was found by Cheapflights users on 3/4. 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 6/26:05 am
OTP
-
PHL
1 stop17h 00m
United Airlines
Wed 9/21:31 pm
PHL
-
OTP
2 stops15h 29m
United Airlines
Deal found 3/4$677
This Gotogate deal was found by Cheapflights users on 3/5. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/236:05 am
OTP
-
PHL
2 stops15h 41m
Multiple Airlines
Wed 4/295:40 pm
PHL
-
OTP
1 stop15h 40m
Multiple Airlines
Deal found 3/5$705
This United Airlines deal was found by Cheapflights users on 3/5. 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 4/86:05 am
OTP
-
PHL
2 stops25h 54m
United Airlines
Sat 7/259:21 am
PHL
-
OTP
2 stops19h 39m
United Airlines
Deal found 3/5$708
This United Airlines deal was found by Cheapflights users on 3/4. 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 7/316:05 am
OTP
-
PHL
2 stops24h 39m
United Airlines
Tue 8/115:40 pm
PHL
-
OTP
1 stop15h 40m
United Airlines
Deal found 3/4$709
This United Airlines deal was found by Cheapflights users on 3/5. 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 4/71:50 pm
OTP
-
PHL
2 stops18h 09m
United Airlines
Mon 7/275:40 pm
PHL
-
OTP
1 stop12h 25m
United Airlines
Deal found 3/5$713

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 March 7, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$638
(United Airlines)

One-way from

$378
(Kiwi.com)

Popular in

September

Cheapest in

October

Average price

$1,023
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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One-way flight from Bucharest Otopeni Intl to Philadelphia
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Highest demand for flights based on searches. 5% potential increase in price ($50 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease ($48 potential savings vs. average RT price).
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Average for round-trip flights in March 2026
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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 March 7, 2026.
Use the filters below to find and compare flights from Bucharest Otopeni Intl Airport to Philadelphia that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BucharestPhiladelphia

OTP - PHL

OTPPHL

Bucharest Otopeni Intl

Thu 4/23

6:05 am-4:05 pm

1 stop17h 00m

Philadelphia

Wed 4/29

5:40 pm-4:20 pm

1 stop15h 40m

$638

BucharestPhiladelphia

OTP - PHL

OTPPHL

Bucharest Otopeni Intl

Tue 6/2

1:50 pm-9:45 am

2 stops26h 55m

Philadelphia

Wed 9/2

11:30 am-12:00 pm

2 stops17h 30m

$673

BucharestPhiladelphia

OTP - PHL

OTPPHL

Bucharest Otopeni Intl

Sun 6/7

6:05 am-9:45 am

2 stops34h 40m

Philadelphia

Mon 9/7

10:28 am-1:10 am

2 stops31h 42m

$673
Quickest round-trip

BucharestPhiladelphia

OTP - PHL

OTPPHL

Bucharest Otopeni Intl

Sun 6/7

6:05 am-4:05 pm

1 stop17h 00m

Philadelphia

Sun 9/6

5:40 pm-1:05 pm

1 stop12h 25m

$674

BucharestPhiladelphia

OTP - PHL

OTPPHL

Bucharest Otopeni Intl

Tue 4/7

1:50 pm-12:59 am

2 stops18h 09m

Philadelphia

Tue 7/28

3:25 pm-4:20 pm

2 stops17h 55m

$717

BucharestPhiladelphia

OTP - PHL

OTPPHL

Bucharest Otopeni Intl

Fri 7/31

6:15 am-11:44 pm

2 stops24h 29m

Philadelphia

Tue 8/11

6:44 pm-6:35 pm

2 stops16h 51m

$720

BucharestPhiladelphia

OTP - PHL

OTPPHL

Bucharest Otopeni Intl

Fri 4/10

12:45 pm-2:11 pm

2 stops32h 26m

Philadelphia

Mon 7/27

5:40 pm-1:05 pm

1 stop12h 25m

$732

BucharestPhiladelphia

OTP - PHL

OTPPHL

Bucharest Otopeni Intl

Sat 4/11

6:05 am-9:32 pm

2 stops22h 27m

Philadelphia

Thu 7/23

5:40 pm-1:00 pm

1 stop12h 20m

$748

BucharestPhiladelphia

OTP - PHL

OTPPHL

Bucharest Otopeni Intl

Sat 4/11

6:05 am-5:32 pm

2 stops18h 27m

Philadelphia

Sat 7/25

10:05 am-4:30 pm

2 stops23h 25m

$752
Cheapest one-way

BucharestPhiladelphia

OTP - PHL

OTPPHL

Bucharest Otopeni Intl

Mon 5/11

2:05 pm-6:55 pm

2 stops35h 50m

$378

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/4

Showing 1-10 of 14 resultsSorted by cheapest first
1
2
  • 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, April is the cheapest month in which you can book a flight from Bucharest Otopeni Intl Airport to Philadelphia (average of $287). Flying from Bucharest Otopeni Intl Airport to Philadelphia in January is currently the most expensive (average of $594). 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 March 7, 2026.
Peruse reviews from past customers who have flown with 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.
British Airways
6.7
Okay
7,779 reviews

Boarding

6.9

Comfort

6.8

Overall

6.7

Entertainment

6.4

Food

6.4

Crew

7.6

Reviews

1 / 20
6.0
Good

Roxanne,Sep 2025

LHR - IAD

Food was mediocre. Couldn't use headphones because no information on how to use. Staff paid so much attention on a family with a baby . They got VIP treatment.
British Airways
6.7
Okay
7,779 reviews
British Airways
6.7
Okay
7,779 reviews

Boarding

6.9

Comfort

6.8

Overall

6.7

Entertainment

6.4

Food

6.4

Crew

7.6

Reviews

1 / 20
6.0
Good

Roxanne,Sep 2025

LHR - IAD

Food was mediocre. Couldn't use headphones because no information on how to use. Staff paid so much attention on a family with a baby . They got VIP treatment.

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 1 airline has 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?

    United Airlines can get you from Bucharest Otopeni Intl Airport to Philadelphia in just under 17h. Your travel time can differ by up to . The distance from Bucharest Otopeni Intl Airport to Philadelphia is about 4831 mi.

  • What is the cheapest airline to fly from Bucharest Otopeni Intl Airport to Philadelphia round-trip?

    Cheapflights users have booked flights from Bucharest Otopeni Intl Airport to Philadelphia round-trip from $635. British Airways is currently priced 22% 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, April is the cheapest month in which you can book a flight from Bucharest Otopeni Intl Airport to Philadelphia (average of $287). Flying from Bucharest Otopeni Intl Airport to Philadelphia in January is currently the most expensive (average of $594). 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
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Reading
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King of Prussia
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Dewey Beach
Ephrata
Camden
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Milford
Dover
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Willow Grove
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Chester

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Alternative routes for Otopeni Intl to Philadelphia

See prices for flight routes from nearby airports that may be better suited for you.
Otopeni Intl to John F Kennedy Intl flights

Top airline flying from Otopeni Intl to Philadelphia

Discover the top airline 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 March 7, 2026.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$635Average$734FlexibilityNo cancel feeOn-time70%

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