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Cheap flights from Bucharest Otopeni Intl Airport to Philadelphia from $603

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Bucharest Otopeni Intl Airport to Philadelphia departing on 11/20. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Bucharest Otopeni Intl Airport to Philadelphia

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
5:50 am - 4:05 pmOTP-PHL
17h 15m1 stop
United Airlines Logo
5:40 pm - 2:05 pmPHL-OTP
13h 25m1 stop
$603United Airlines
Find Deal
Thu, Nov 20 - Thu, Nov 27
United Airlines Logo
5:55 am - 10:24 amOTP-PHL
35h 29m2 stops
United Airlines Logo
5:07 pm - 11:55 pmPHL-OTP
23h 48m2 stops
$621United Airlines
Find Deal
Mon, Nov 17 - Wed, Dec 3
United Airlines Logo
2:50 pm - 4:05 pmOTP-PHL
32h 15m1 stop
United Airlines Logo
5:07 pm - 11:55 pmPHL-OTP
23h 48m2 stops
$630United Airlines
Find Deal
Mon, Nov 17 - Wed, Dec 3
Delta Logo
1:55 pm - 12:51 amOTP-PHL
17h 56m2 stops
Delta Logo
10:32 am - 12:05 pmPHL-OTP
18h 33m2 stops
$716Delta
Find Deal
Thu, Dec 4 - Mon, Dec 8
Delta Logo
6:00 am - 4:32 pmOTP-PHL
17h 32m2 stops
Delta Logo
6:07 pm - 10:50 pmPHL-OTP
21h 43m2 stops
$719Delta
Find Deal
Thu, Dec 4 - Mon, Dec 8
British Airways Logo
9:00 pm - 4:15 pmOTP-PHL
26h 15m1 stop
British Airways Logo
6:35 pm - 3:30 pmPHL-OTP
13h 55m1 stop
$731British Airways
Find Deal
Thu, Dec 4 - Mon, Dec 8
British Airways Logo
8:00 am - 4:15 pmOTP-PHL
15h 15m1 stop
British Airways Logo
6:35 pm - 3:30 pmPHL-OTP
13h 55m1 stop
$733British Airways
Find Deal
Thu, Dec 4 - Mon, Dec 8
American Airlines Logo
8:00 am - 4:15 pmOTP-PHL
15h 15m1 stop
American Airlines Logo
9:20 pm - 11:00 pmPHL-OTP
18h 40m2 stops
$846American Airlines
Find Deal
Thu, Dec 4 - Mon, Dec 8
American Airlines Logo
8:00 am - 4:15 pmOTP-PHL
15h 15m1 stop
American Airlines Logo
9:20 pm - 11:00 pmPHL-OTP
18h 40m2 stops
$849American Airlines
Find Deal
Thu, Dec 4 - Mon, Dec 8
SWISS Logo
4:40 pm - 9:21 pmOTP-PHL
35h 41m3 stops
SWISS Logo
5:40 pm - 3:50 pmPHL-OTP
15h 10m2 stops
$865SWISS
Find Deal
Thu, Nov 20 - Thu, Nov 27

United Airlines flights from Bucharest Otopeni Intl Airport to Philadelphia

Our best United Airlines deals on Bucharest Otopeni Intl Airport to Philadelphia flight tickets
United Airlines
Nov 20
OTP5:50 amBucharest Otopeni Intl
17h 15m
1 stop
PHL4:05 pmPhiladelphia
Nov 27
PHL5:40 pmPhiladelphia
13h 25m
1 stop
OTP2:05 pmBucharest Otopeni Intl
$603
Find similar
United Airlines
Nov 17
OTP5:55 amBucharest Otopeni Intl
35h 29m
2 stops
PHL10:24 amPhiladelphia
Dec 3
PHL5:07 pmPhiladelphia
23h 48m
2 stops
OTP11:55 pmBucharest Otopeni Intl
$621
Find similar
United Airlines
Nov 17
OTP2:50 pmBucharest Otopeni Intl
32h 15m
1 stop
PHL4:05 pmPhiladelphia
Dec 3
PHL5:07 pmPhiladelphia
23h 48m
2 stops
OTP11:55 pmBucharest Otopeni Intl
$630
Find similar

Delta flights from Bucharest Otopeni Intl Airport to Philadelphia

Our best Delta deals on Bucharest Otopeni Intl Airport to Philadelphia flight tickets
Delta
Dec 4
OTP1:55 pmBucharest Otopeni Intl
17h 56m
2 stops
PHL12:51 amPhiladelphia
Dec 8
PHL10:32 amPhiladelphia
18h 33m
2 stops
OTP12:05 pmBucharest Otopeni Intl
$716
Find similar
Delta
Dec 4
OTP6:00 amBucharest Otopeni Intl
17h 32m
2 stops
PHL4:32 pmPhiladelphia
Dec 8
PHL6:07 pmPhiladelphia
21h 43m
2 stops
OTP10:50 pmBucharest Otopeni Intl
$719
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Bucharest Otopeni Intl Airport 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, momondo users made 832,500 searches. Data last updated November 3, 2025.
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

BucharestPhiladelphia

OTP - PHL

OTPPHL

Bucharest Otopeni Intl

Thu 11/20

5:50 am-4:05 pm

1 stop17h 15m

Philadelphia

Thu 11/27

5:40 pm-2:05 pm

1 stop13h 25m

$603

BucharestPhiladelphia

OTP - PHL

OTPPHL

Bucharest Otopeni Intl

Mon 11/17

5:55 am-10:24 am

2 stops35h 29m

Philadelphia

Wed 12/3

5:07 pm-11:55 pm

2 stops23h 48m

$621

BucharestPhiladelphia

OTP - PHL

OTPPHL

Bucharest Otopeni Intl

Mon 11/17

2:50 pm-4:05 pm

1 stop32h 15m

Philadelphia

Wed 12/3

5:07 pm-11:55 pm

2 stops23h 48m

$630

BucharestPhiladelphia

OTP - PHL

OTPPHL

Bucharest Otopeni Intl

Thu 12/4

1:55 pm-12:51 am

2 stops17h 56m

Philadelphia

Mon 12/8

10:32 am-12:05 pm

2 stops18h 33m

$716

BucharestPhiladelphia

OTP - PHL

OTPPHL

Bucharest Otopeni Intl

Thu 12/4

6:00 am-4:32 pm

2 stops17h 32m

Philadelphia

Mon 12/8

6:07 pm-10:50 pm

2 stops21h 43m

$719

BucharestPhiladelphia

OTP - PHL

OTPPHL

Bucharest Otopeni Intl

Thu 12/4

9:00 pm-4:15 pm

1 stop26h 15m

Philadelphia

Mon 12/8

6:35 pm-3:30 pm

1 stop13h 55m

$731

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

$733

BucharestPhiladelphia

OTP - PHL

OTPPHL

Bucharest Otopeni Intl

Thu 12/4

8:00 am-4:15 pm

1 stop15h 15m

Philadelphia

Mon 12/8

9:20 pm-11:00 pm

2 stops18h 40m

$846

BucharestPhiladelphia

OTP - PHL

OTPPHL

Bucharest Otopeni Intl

Thu 12/4

8:00 am-4:15 pm

1 stop15h 15m

Philadelphia

Mon 12/8

9:20 pm-11:00 pm

2 stops18h 40m

$849

BucharestPhiladelphia

OTP - PHL

OTPPHL

Bucharest Otopeni Intl

Thu 11/20

4:40 pm-9:21 pm

3 stops35h 41m

Philadelphia

Thu 11/27

5:40 pm-3:50 pm

2 stops15h 10m

$865

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 15 resultsSorted by cheapest first
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See travel insights to Philadelphia from

How to get the cheapest flight ticket from Bucharest Otopeni Intl Airport to Philadelphia

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Philadelphia?

The cheapest month to fly to Philadelphia from Bucharest Otopeni Intl Airport is in February. Flight prices, which tend to average around $506, are often lower during this time because this is during the off-season. The month of April is another great option to travel to Philadelphia, with average flight prices from Bucharest Otopeni Intl Airport averaging around $548.

What is the cheapest day to depart on your flight to Philadelphia?

The cheapest day to depart from Bucharest Otopeni Intl Airport to Philadelphia is on a Friday. Travelers who choose to depart for Philadelphia on a Friday will often find tickets for as low as $604. On the other hand, Monday is the most expensive day to depart from Bucharest Otopeni Intl Airport because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $894.

What is the cheapest time of day to depart on your flight to Philadelphia?

According to our data, the cheapest time of day to fly to Philadelphia is in the morning. momondo users have found flights departing from Bucharest Otopeni Intl Airport to Philadelphia in the morning for as low as $672. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. In contrast, the most expensive time of day to depart to Philadelphia is in the afternoon when prices are around $780.

Can stopping save me money on Bucharest Otopeni Intl Airport to Philadelphia flights?

You could potentially save up to 58% on your flight if you consider stops on a Bucharest Otopeni Intl Airport to Philadelphia flight.

When to book flights from Bucharest Otopeni Intl Airport to Philadelphia

Are you open to changing your travel dates? Check out the ideal times to fly from Bucharest Otopeni Intl Airport to Philadelphia according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Bucharest Otopeni Intl Airport to Philadelphia (OTP to PHL) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Bucharest Otopeni Intl Airport to Philadelphia

Direct flights

None
There are no direct flights from Bucharest Otopeni Intl Airport to Philadelphia. There are no popular flight routes from Bucharest Otopeni Intl Airport to Philadelphia.
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  • How far is Bucharest Otopeni Intl to Philadelphia by plane?

    A flight from Bucharest Otopeni Intl to Philadelphia will travel around 4824.4 mi. By plane, this route typically takes 15h 10m.

  • When did momondo last update prices for flights from Bucharest Otopeni Intl Airport to Philadelphia Airport?

    Prices for flights from Bucharest Otopeni Intl Airport to Philadelphia Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from Bucharest Otopeni Intl Airport to Philadelphia Airport?

  • How old do you have to be to fly from Bucharest Otopeni Intl Airport to Philadelphia Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Bucharest Otopeni Intl Airport to Philadelphia Airport.

  • What documentation or ID do you need to fly to Philadelphia Airport?

    The necessary travel and health documents for your Philadelphia Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from Bucharest Otopeni Intl Airport to Philadelphia?

Best airlines flying from Bucharest Otopeni Intl Airport to Philadelphia

Compare and see reviews for airlines that fly from Bucharest Otopeni Intl Airport to Philadelphia with momondo
Airline
Rating
Free Cancellation
Price
American AirlinesPriceFrom $506Free CancellationRating
7.2
11,036 reviews
Search American Airlines flights
British AirwaysPriceFrom $507Free CancellationRating
6.7
7,494 reviews
Search British Airways flights

Traveling to a place near Philadelphia?

Book flights to Philadelphia if you plan to visit one of these locations
Wildwood
Cape May
Rehoboth Beach
Ocean City
Wildwood Crest
King of Prussia
Dewey Beach
Cherry Hill
Reading
Newark
North Wildwood
Dover
Avalon
Lewes
Stone Harbor
Vineland
Essington
Pottstown
New Castle
Somers Point

Why use momondo?

Why should I use momondo to find a flight deal from Bucharest to Philadelphia?

It is quick and easy to find Bucharest to Philadelphia flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Philadelphia that suits you.

Can I find flights from Bucharest to Philadelphia with flexible booking policies on momondo?

momondo does allow users to show only those flights to Philadelphia from Bucharest which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Bucharest to Philadelphia?

Once all potential Bucharest to Philadelphia flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Bucharest to Philadelphia right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Bucharest to Philadelphia flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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