What is the cheapest airline that flies from Portland to Bucharest Otopeni Intl?

British Airways, American Airlines, and United Airlines are the most popular carriers operating from Portland to Bucharest Otopeni Intl

Which layover airport offers the lowest fares from Portland to Bucharest Otopeni Intl Airport?

Flights via London (LHR) offer the lowest average round-trip price of $882.

Which airport is the most popular layover for flights between Portland and Bucharest Otopeni Intl Airport?

Amsterdam (AMS) was the most common stop: 88% of momondo users choosing 1-stop flights on this route connected there.

Which layover airport has the shortest connection time from Portland to Bucharest Otopeni Intl Airport?

Amsterdam (AMS) has the shortest average layover time for this route: 3h 02m.

Which layover airport has the shortest travel time from Portland to Bucharest Otopeni Intl Airport?

Flights connecting via Amsterdam (AMS) have the shortest average one-way travel time: 14h 34m.

What airlines fly to Bucharest Otopeni Intl Airport?

KLM, Delta and British Airways are the top three most popular airlines that fly to Bucharest Otopeni Intl Airport from Portland according to our data. KLM is the first choice among our users, with 43% of people opting to fly with this airline when traveling to Bucharest Otopeni Intl Airport. Keep in mind that there are 5 different airlines that fly to Bucharest Otopeni Intl Airport on a routine basis, so you have a few additional options to choose from.

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

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

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

As of December 2025, there are 5 operators available to choose from for flights from Portland Airport to Bucharest Otopeni Intl Airport.

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

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Portland Airport to Bucharest Otopeni Intl Airport.

What documentation or ID do you need to fly to Bucharest Otopeni Intl Airport?

The travel and health documents required for your trip to Bucharest Otopeni Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Bucharest Otopeni Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$538 Cheap Flights from Portland to Bucharest Otopeni Intl Airport in 2025/26

Q: What is the typical price of a round-trip flight between Portland and Bucharest Otopeni Intl Airport?

Prices are currently low for flights on this route. Typical prices usually range from $654 to $1,060. The lowest price recently found on this route was $538.

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One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

11:10 am - 3:50 pm

PDX

OTP

18h 40m2 stops

4:50 pm - 11:25 am

OTP

PDX

28h 35m1 stop

$538Multiple Airlines

Thu, Jan 22 - Thu, Jan 29

11:10 am - 3:50 pm

PDX

OTP

18h 40m2 stops

8:35 am - 5:35 pm

OTP

PDX

19h 00m2 stops

$549Multiple Airlines

Thu, Jan 22 - Thu, Jan 29

8:30 am - 2:05 pm

PDX

OTP

19h 35m3 stops

5:50 am - 6:56 pm

OTP

PDX

23h 06m2 stops

$567United Airlines

Thu, Jan 22 - Thu, Jan 29

7:00 am - 2:00 pm

PDX

OTP

21h 00m2 stops

2:50 pm - 10:32 pm

OTP

PDX

41h 42m2 stops

$582United Airlines

Wed, Jan 14 - Sun, Jan 18

7:45 am - 2:00 pm

PDX

OTP

20h 15m2 stops

2:50 pm - 11:57 am

OTP

PDX

55h 07m2 stops

$588United Airlines

Wed, Jan 14 - Sun, Jan 18

5:45 pm - 8:00 pm

PDX

OTP

16h 15m1 stop

7:35 am - 3:55 pm

OTP

PDX

18h 20m1 stop

$638British Airways

Wed, Jan 14 - Sun, Jan 18

7:00 pm - 12:30 pm

PDX

OTP

31h 30m3 stops

5:50 am - 9:15 am

OTP

PDX

37h 25m3 stops

$669Air Canada

Thu, Jan 22 - Thu, Jan 29

5:45 pm - 11:30 pm

PDX

OTP

19h 45m1 stop

7:35 am - 8:47 pm

OTP

PDX

23h 12m2 stops

$748British Airways

Wed, Jan 14 - Sun, Jan 18

3:52 pm - 11:50 pm

PDX

OTP

45h 58m2 stops

6:05 am - 9:15 am

OTP

PDX

37h 10m2 stops

$765Multiple Airlines

Wed, Dec 24 - Tue, Jan 27

3:52 pm - 11:50 pm

PDX

OTP

45h 58m2 stops

5:55 am - 2:48 pm

OTP

PDX

42h 53m3 stops

$780United Airlines

Wed, Dec 24 - Tue, Jan 27

British Airways flights from Portland to Bucharest Otopeni Intl Airport

Our best British Airways deals on Portland to Bucharest Otopeni Intl Airport flight tickets

British Airways

Jan 14

PDX5:45 pmPortland

16h 15m

1 stop

OTP8:00 pmBucharest Otopeni Intl

Jan 18

OTP7:35 amBucharest Otopeni Intl

18h 20m

1 stop

PDX3:55 pmPortland

$638

Find similar

British Airways

Jan 14

PDX5:45 pmPortland

19h 45m

1 stop

OTP11:30 pmBucharest Otopeni Intl

Jan 18

OTP7:35 amBucharest Otopeni Intl

23h 12m

2 stops

PDX8:47 pmPortland

$748

Find similar

British Airways

Jan 1

PDX2:56 pmPortland

18h 34m

2 stops

OTP7:30 pmBucharest Otopeni Intl

Jan 5

OTP8:05 amBucharest Otopeni Intl

17h 50m

1 stop

PDX3:55 pmPortland

$3,039

Find similar

United Airlines flights from Portland to Bucharest Otopeni Intl Airport

Our best United Airlines deals on Portland to Bucharest Otopeni Intl Airport flight tickets

United Airlines

Jan 22

PDX8:30 amPortland

19h 35m

3 stops

OTP2:05 pmBucharest Otopeni Intl

Jan 29

OTP5:50 amBucharest Otopeni Intl

23h 06m

2 stops

PDX6:56 pmPortland

$567

Find similar

United Airlines

Jan 14

PDX7:00 amPortland

21h 00m

2 stops

OTP2:00 pmBucharest Otopeni Intl

Jan 18

OTP2:50 pmBucharest Otopeni Intl

41h 42m

2 stops

PDX10:32 pmPortland

$582

Find similar

United Airlines

Jan 14

PDX7:45 amPortland

20h 15m

2 stops

OTP2:00 pmBucharest Otopeni Intl

Jan 18

OTP2:50 pmBucharest Otopeni Intl

55h 07m

2 stops

PDX11:57 amPortland

$588

Find similar

momondo Fare Finder

Use the filters below to find and compare flights from Portland to Bucharest Otopeni Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

PortlandBucharest

PDX - OTP

PDXOTP

Portland

Thu 1/22

11:10 am-3:50 pm

2 stops18h 40m

Bucharest Otopeni Intl

Thu 1/29

4:50 pm-11:25 am

1 stop28h 35m

$538

PortlandBucharest

PDX - OTP

PDXOTP

Portland

Thu 1/22

11:10 am-3:50 pm

2 stops18h 40m

Bucharest Otopeni Intl

Thu 1/29

8:35 am-5:35 pm

2 stops19h 00m

$549

PortlandBucharest

PDX - OTP

PDXOTP

Portland

Thu 1/22

8:30 am-2:05 pm

3 stops19h 35m

Bucharest Otopeni Intl

Thu 1/29

5:50 am-6:56 pm

2 stops23h 06m

$567

PortlandBucharest

PDX - OTP

PDXOTP

Portland

Wed 1/14

7:00 am-2:00 pm

2 stops21h 00m

Bucharest Otopeni Intl

Sun 1/18

2:50 pm-10:32 pm

2 stops41h 42m

$582

PortlandBucharest

PDX - OTP

PDXOTP

Portland

Wed 1/14

7:45 am-2:00 pm

2 stops20h 15m

Bucharest Otopeni Intl

Sun 1/18

2:50 pm-11:57 am

2 stops55h 07m

$588

PortlandBucharest

PDX - OTP

PDXOTP

Portland

Wed 1/14

5:45 pm-8:00 pm

1 stop16h 15m

Bucharest Otopeni Intl

Sun 1/18

7:35 am-3:55 pm

1 stop18h 20m

$638

PortlandBucharest

PDX - OTP

PDXOTP

Portland

Thu 1/22

7:00 pm-12:30 pm

3 stops31h 30m

Bucharest Otopeni Intl

Thu 1/29

5:50 am-9:15 am

3 stops37h 25m

$669

PortlandBucharest

PDX - OTP

PDXOTP

Portland

Wed 1/14

5:45 pm-11:30 pm

1 stop19h 45m

Bucharest Otopeni Intl

Sun 1/18

7:35 am-8:47 pm

2 stops23h 12m

$748

PortlandBucharest

PDX - OTP

PDXOTP

Portland

Wed 12/24

3:52 pm-11:50 pm

2 stops45h 58m

Bucharest Otopeni Intl

Tue 1/27

6:05 am-9:15 am

2 stops37h 10m

$765

PortlandBucharest

PDX - OTP

PDXOTP

Portland

Wed 12/24

3:52 pm-11:50 pm

2 stops45h 58m

Bucharest Otopeni Intl

Tue 1/27

5:55 am-2:48 pm

3 stops42h 53m

$780

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 15 resultsSorted by cheapest first

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

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

Prices

Airlines

Layovers

What is the typical price of a round-trip flight between Portland and Bucharest Otopeni Intl Airport?

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

If you aren’t able to travel during the month of December, then book flights to Bucharest Otopeni Intl Airport from Portland during October instead. Flights to Bucharest Otopeni Intl Airport in October, while not as cheap as those in December, still average around $682.

What is the cheapest day to depart on your flight to Bucharest Otopeni Intl Airport?

Our data shows that Wednesday is the least expensive day to fly to Bucharest Otopeni Intl Airport. Tickets to fly out on this day can be as low as $958. When flying out on a Friday, the most expensive travel day of the week, you can expect to see flight prices from Portland to Bucharest Otopeni Intl Airport for around $1,383.

What is the cheapest time of day to depart on your flight to Bucharest Otopeni Intl Airport?

Our most recent data shows that the best time of day to fly to Bucharest Otopeni Intl Airport is in the morning. Flights from Portland to Bucharest Otopeni Intl Airport during this time can be as low as $1,015. In the afternoon is when there is more demand to fly to Bucharest Otopeni Intl Airport, so prices are often more expensive at around $1,103 per ticket.

How far in advance should I book a flight to Bucharest Otopeni Intl Airport?

You are more likely to see cheaper flights to Bucharest Otopeni Intl Airport from Portland when booking weeks ahead of your departure date. In general, you can expect to find flights to Bucharest Otopeni Intl Airport for around $934 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Bucharest Otopeni Intl Airport from Portland for as low as $745 on momondo.

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

You could potentially save up to 36% on your flight if you consider stops on a Portland to Bucharest Otopeni Intl Airport flight.

When to book flights from Portland to Bucharest Otopeni Intl Airport

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

Estimated round-trip price

Cheap Portland to Bucharest Otopeni Intl Airport (PDX to OTP) flight deals and tips

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

Fastest flight time	21h 00m
Direct flights	None

The fastest flight from Portland to Bucharest Otopeni Intl Airport takes 21h 00m

There are no direct flights from Portland to Bucharest Otopeni Intl Airport. There are no popular flight routes from Portland to Bucharest Otopeni Intl Airport.

Search flight deals

How far is Portland to Bucharest Otopeni Intl by plane?
The straight-line distance from Portland to Bucharest Otopeni Intl is 5921.2 mi. In terms of flight time, this usually takes a little over 13h 35m.
When did momondo last update prices for flights from Portland Airport to Bucharest Otopeni Intl Airport?
Prices for flights from Portland Airport to Bucharest Otopeni Intl Airport are refreshed on a daily basis.
How many operators does momondo search for flights from Portland Airport to Bucharest Otopeni Intl Airport?
As of December 2025, there are 5 operators available to choose from for flights from Portland Airport to Bucharest Otopeni Intl Airport.
How old do you have to be to fly from Portland Airport to Bucharest Otopeni Intl Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Portland Airport to Bucharest Otopeni Intl Airport.
What documentation or ID do you need to fly to Bucharest Otopeni Intl Airport?
The travel and health documents required for your trip to Bucharest Otopeni Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Bucharest Otopeni Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular airline from Portland to Bucharest Otopeni Intl Airport?
momondo data reveals that the most frequently booked airline on the route from Portland to Bucharest Otopeni Intl Airport is KLM, representing 41% of all bookings. The subsequent popular airlines are Delta at 40%, British Airways at 9%, and Air Canada at 5%.

Best airlines flying from Portland to Bucharest Otopeni Intl Airport

Compare and see reviews for airlines that fly from Portland to Bucharest Otopeni Intl Airport with momondo

Airline	Rating	Free Cancellation	Price
United Airlines	PriceFrom $516	Free Cancellation	Rating 7.4 9,089 reviews	Search United Airlines flights
British Airways	PriceFrom $633	Free Cancellation	Rating 6.7 7,571 reviews	Search British Airways flights
Delta	PriceFrom $654	Free Cancellation	Rating 7.9 8,011 reviews	Search Delta flights
KLM	PriceFrom $682	Free Cancellation	Rating 7.7 1,431 reviews	Search KLM flights
Air Canada	PriceFrom $779	Free Cancellation	Rating 7.1 10,514 reviews	Search Air Canada flights

Otopeni

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Portland to Bucharest for you.

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

Yes. All flights to Bucharest from Portland on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

Once you have performed a search for Portland to Bucharest flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

If you are not ready to book a flight from Portland to Bucharest now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Bucharest and let you know when they change.

An easier way to manage your Bucharest Otopeni Intl Airport trip

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Flights from Portland to Los Angeles

Cheap flights from Portland to Bucharest from $538

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Portland to Bucharest departing on 1/22. 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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Big names and deals

Filter for what you want

Filter for what you want

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Price Alerts

Find the cheapest flights from Portland to Bucharest

Cheap round-trip flights

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British Airways flights from Portland to Bucharest Otopeni Intl Airport

Our best British Airways deals on Portland to Bucharest Otopeni Intl Airport flight tickets

United Airlines flights from Portland to Bucharest Otopeni Intl Airport

Our best United Airlines deals on Portland to Bucharest Otopeni Intl Airport flight tickets

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Use the filters below to find and compare flights from Portland to Bucharest Otopeni Intl Airport that are best for you.

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

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 typical price of a round-trip flight between Portland and Bucharest Otopeni Intl Airport?

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

If you aren’t able to travel during the month of December, then book flights to Bucharest Otopeni Intl Airport from Portland during October instead. Flights to Bucharest Otopeni Intl Airport in October, while not as cheap as those in December, still average around $682.

What is the cheapest day to depart on your flight to Bucharest Otopeni Intl Airport?

What is the cheapest time of day to depart on your flight to Bucharest Otopeni Intl Airport?

How far in advance should I book a flight to Bucharest Otopeni Intl Airport?

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

You could potentially save up to 36% on your flight if you consider stops on a Portland to Bucharest Otopeni Intl Airport flight.

What is the cheapest airline that flies from Portland to Bucharest Otopeni Intl?

British Airways, American Airlines, and United Airlines are the most popular carriers operating from Portland to Bucharest Otopeni Intl

What airlines fly to Bucharest Otopeni Intl Airport?

Which airport is the most popular layover for flights between Portland and Bucharest Otopeni Intl Airport?

Amsterdam (AMS) was the most common stop: 88% of momondo users choosing 1-stop flights on this route connected there.

Which layover airport offers the lowest fares from Portland to Bucharest Otopeni Intl Airport?

Flights via London (LHR) offer the lowest average round-trip price of $882.

Which layover airport has the shortest travel time from Portland to Bucharest Otopeni Intl Airport?

Flights connecting via Amsterdam (AMS) have the shortest average one-way travel time: 14h 34m.

Which layover airport has the shortest connection time from Portland to Bucharest Otopeni Intl Airport?

Amsterdam (AMS) has the shortest average layover time for this route: 3h 02m.

When to book flights from Portland to Bucharest Otopeni Intl Airport

Cheap Portland to Bucharest Otopeni Intl Airport (PDX to OTP) flight deals and tips

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

Fastest flight time

Direct flights

How far is Portland to Bucharest Otopeni Intl by plane?

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

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

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

What documentation or ID do you need to fly to Bucharest Otopeni Intl Airport?

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

Best airlines flying from Portland to Bucharest Otopeni Intl Airport

Compare and see reviews for airlines that fly from Portland to Bucharest Otopeni Intl Airport with momondo

Traveling to a place near Bucharest?

Why use momondo?

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

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

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

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

An easier way to manage your Bucharest Otopeni Intl Airport trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Bucharest

Portland flight routes

According to popular flight searches on momondo this year