PHL - OTP

$636 Find Cheap Flights from Philadelphia to Bucharest

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Philadelphia to Bucharest departing on 8/10. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to Bucharest Otopeni Intl Airport

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Philadelphia to Bucharest, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Philadelphia to Bucharest, as well as popular online travel agencies
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Flights Deals

Cheap Flights from Philadelphia to Bucharest (PHL-OTP)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Philadelphia to Bucharest that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Philadelphia to Bucharest

Sun, Aug 10 - Mon, Aug 18
United Airlines Logo
9:20 am - 4:50 pmPHL-OTP
24h 30m2 stops
United Airlines Logo
1:55 pm - 9:31 pmOTP-PHL
38h 36m2 stops
$636United Airlines
Find Deal
Sat, Aug 9 - Tue, Aug 19
United Airlines Logo
9:20 am - 11:30 pmPHL-OTP
31h 10m2 stops
United Airlines Logo
1:50 pm - 5:21 pmOTP-PHL
58h 31m2 stops
$692United Airlines
Find Deal
Fri, Aug 1 - Tue, Sep 9
United Airlines Logo
7:59 pm - 6:35 pmPHL-OTP
39h 36m2 stops
United Airlines Logo
6:00 am - 4:00 pmOTP-PHL
17h 00m1 stop
$749United Airlines
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Mon, Aug 4 - Mon, Aug 18
Delta Logo
11:39 am - 12:10 pmPHL-OTP
17h 31m2 stops
Delta Logo
1:45 pm - 12:56 amOTP-PHL
18h 11m2 stops
$792Delta
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Fri, Aug 22 - Sun, Sep 14
Lufthansa Logo
5:35 pm - 5:55 pmPHL-OTP
17h 20m1 stop
Lufthansa Logo
6:00 am - 4:00 pmOTP-PHL
17h 00m1 stop
$861Lufthansa
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Mon, Aug 4 - Mon, Aug 18
 Logo
7:30 am - 3:20 pmPHL-OTP
24h 50m2 stops
 Logo
6:55 pm - 10:07 pmOTP-PHL
34h 12m3 stops
Mon, Aug 4 - Mon, Aug 18
 Logo
5:35 pm - 4:50 pmPHL-OTP
16h 15m1 stop
 Logo
12:40 pm - 10:07 pmOTP-PHL
16h 27m2 stops
Mon, Aug 4 - Mon, Aug 18
Lufthansa Logo
5:35 pm - 1:05 pmPHL-OTP
12h 30m1 stop
Lufthansa Logo
6:40 pm - 4:00 pmOTP-PHL
28h 20m1 stop
$925Lufthansa
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Thu, Jul 10 - Thu, Jul 17
British Airways Logo
6:30 pm - 1:25 amPHL-OTP
23h 55m1 stop
British Airways Logo
9:15 pm - 1:00 pmOTP-PHL
22h 45m1 stop
$987British Airways
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Thu, Jul 10 - Thu, Jul 17
British Airways Logo
6:30 pm - 1:25 amPHL-OTP
23h 55m1 stop
British Airways Logo
9:15 pm - 1:00 pmOTP-PHL
22h 45m1 stop
$1,187British Airways
Find Deal
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KAYAK's insights & trends for Philadelphia to Bucharest flights

Get data-powered insights and trends into flights from Philadelphia to Bucharest to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Philadelphia to Bucharest?

The average price of all round-trip flights from Philadelphia to Bucharest Otopeni Intl Airport clicked on KAYAK for each day over the last 12 months.

If your flying dates are flexible, you should consider flying to Bucharest on a Monday, as we generally find the cheapest rates on that day for this route. On the other hand, Friday is the most expensive day to fly from Philadelphia to Bucharest. For your return ticket, we recommend flying on a Thursday and avoiding Sundays for the best deals.

What is the cheapest month to fly from Philadelphia to Bucharest Otopeni Intl Airport?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Philadelphia to Bucharest Otopeni Intl Airport, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Philadelphia to Bucharest Otopeni Intl Airport is November, where tickets cost $573 (return) on average. On the other hand, the most expensive months are April and July, where the average cost of round-trip tickets is $1,402 and $1,192 respectively.

Good to know

Low seasonJanuary
High seasonOctober
Cheapest flight$636
Best time to beat the crowds with an average 26% drop in price.
Most popular time to fly and prices are also 12% lower on average.
Flight from Philadelphia to Bucharest

When to book flights from Philadelphia to Bucharest

Are your dates flexible? Find out the best times to travel from Philadelphia to Bucharest based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Philadelphia to Bucharest flights

  • What is the cheapest flight from Philadelphia to Bucharest Otopeni Intl Airport?

    In the last 3 days, the lowest price for a flight from Philadelphia to Bucharest Otopeni Intl Airport was $1,172 for a one-way ticket and $636 for a round-trip.

  • Do I need a passport to fly between Philadelphia and Bucharest?

    Yes, you'll most likely have to show a valid passport before boarding the plane in Philadelphia and on arrival in Bucharest.

  • Which aircraft models fly most regularly from Philadelphia to Bucharest?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Philadelphia to Bucharest?

    Star Alliance, SkyTeam, and oneworld are the airline alliances operating flights between Philadelphia and Bucharest, with Star Alliance being the most commonly used for this route.

  • Which is the best airline for flights from Philadelphia to Bucharest, Lufthansa or British Airways?

    The two airlines most popular with KAYAK users for flights from Philadelphia to Bucharest are Lufthansa and British Airways. With an average price for the route of $1,072 and an overall rating of 6.7, Lufthansa is the most popular choice. British Airways is also a great choice for the route, with an average price of $867 and an overall rating of 6.6.

  • How does KAYAK find such low prices on flights from Philadelphia to Bucharest?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Philadelphia to Bucharest.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Philadelphia to Bucharest?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Bucharest from Philadelphia is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Philadelphia to Bucharest?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Bucharest with an airline and back to Philadelphia with another airline. Booking your flights between Philadelphia and OTP can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Philadelphia to Bucharest?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Bucharest from Philadelphia up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Top airlines flying from Philadelphia to Bucharest

 
See real verified KAYAK customer reviews for airlines flying from Philadelphia to Bucharest. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Philadelphia to Bucharest? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
6.7
LufthansaOverall score based on 7136 reviews
7.0Boarding
6.3Food
7.5Crew
6.7Comfort
6.4Entertainment
Airline reviews

Flight was 1.5 hours late to depart so changed flights to Swiss Air.

2.0 MediocreFred, Jun 2025BOS - FRA
Read more Lufthansa reviews

Flight was 1.5 hours late to depart so changed flights to Swiss Air.

The United Airlines crew that operated this flight was subpar. They didn’t

Very small and uncomfortable seats, Hard to hear entertainment system sound. Horrible food. Staff doesn't care much about the passengers. 2nd time they didn't give me my vegetarian meal. They asked me regular food with meat. The airline and staff was from United airlines.

Checkin took along timen only.few angents available at.checkin desk. Customer support over phone no existence

At baggage claim, I was given the wrong printed ticket. The ticket belonged to another passenger for a different flight — to Zurich instead of Frankfurt (layover). I was even allowed to pass security, and when I asked the Lufthansa employee if I was on the correct flight, and why it was changed. The employee said everything was correct and I should board. When I got on the plane, there was someone in my seat, and the crew on the plane finally realized that I was on the wrong plane. When I got off the plane, nobody was willing to help, and the security refused to provide my original printed ticket. That was until I showed them that I took a photo of the ticket; once they realized I had photographic evidence, they were suddenly ready to help me. The Lufthansa employee began communicating with other airlines and found a flight that would take me to my destination via Polish Airlines. I was required to once again go through security, re-check my bag, and once again pay for my checked bag and weight overage fees. This experience was incredibly stressful and very frustrating, as you can imagine. A Lufthansa employee told me I would be eligible for a refund. Please tell me what steps I need to take in order to make that happen. Thank you!

The row of seats were so cramped it was difficult to get in and out of your seat. I even upgraded. A long flight and sad accommodations 😵‍💫 the shorter flight was very comfortable and the seating was spacious

I bought a ticket and paid for for our luggage but I had to pay for my luggage again. I’m so disappointed! We had a 30 min delay and because of that we missed our connecting flight and were told that we would be on the next flight (9am flight ) but we were landed we were booked at 12pm flight. I had a little baby w me, it was very stressful. I begged to leave at 10 am at least. I was emailed that we get a voucher but they didn’t work when we were at a breakfast store. I’ve been always happy w Lufthansa but this time was awful.

Good service … bus transfer upon arrival from plane to terminal: atrocious!!!

helpful and friendly. The Lufthanza people I dealt with before my holiday were so unhelpful by comparison.

We had a 1 1/2 hour delay before we left Denver. When we arrive to Frankfort, they didn’t announce that people with connecting flights to exit the plane first. My next flight was already boarding when we we taxiing in to the gate. I waited another 10 minutes to get off the plane. I had to run to catch my next flight. I mean run! I made it with one minute to spare, but my luggage did not. My luggage came two hours later on a different flight.

The payment system was not working so was unable to connect wifi the entire flight

everything to do with KAYAK was terrible. Your customer facing departments are utterly useless, timewasting and unhelpful.

I ordered short ribs for main course. It tasted sweet, really sweet. Horrible.

Our luggage didn’t arrive with us, that puts a damper on the whole trip.

The screen didn’t work and I didn’t get the seat upgrade I paid $300 for. They were no help with that,

Paid $180 for seat selection, and selection essnt honored. Have to call for a refund.

Was 3 hrs delayed and my poor friend I met in Barcelona was waiting at airport for 3 hrs. Dallas airport was awful

The internet was horrible. Plus they charged me $25 for service that didn't work which should have been free since I'm Concierge Key. The flight attendant Rick Young was excellent. Greeted me by name and very attentive.

Not good. First time flying AA in years and won’t be doing so again. We departed late and missed our connecting flight to Barcelona. As a result we missed the first two days of a Mediterranean cruise. No reason given for the delay. Got rerouted from JFK to Heathrow and then to Barcelona. Flight to Heathrow was delayed causing us to miss the flight to Barcelona again. Routed then to Palmero where we had to purchase transportation and a 2 night hotel stay to pick up the cruise there. Probably cost us $2k plus.

My flights were great and the crew on them was lovely especially the London to Barcelona flight as Al & AJ were so amazingly nice. I wish they would be my crew always as they have the best customer service. Sadly both flights were delayed the first one from Vegas was because they clearly loaded the cargo wrong the plane was off balance making us 2 hours late. This made me miss my connection and sadly it was challenging rebooking while I was on the flight. I will never use Kayak again as there was no customer service number or live chat and you rebooked me on a flight 2 days later. I had my mom call BA to change it which she did after spending an hour on hold. This should not be so difficult. My second flight was an hour delayed due to not being able to disconnect the bridge from the plane but I did finally make it home.

Everything you need to know for your flight from Philadelphia to Bucharest

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