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Cheap flights from Portland to Bucharest from $299

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Portland to Bucharest departing on 9/2. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
8:29 am - 12:00 pm
PDX
-
OTP
17h 31m
2 stops
Multiple Airlines Logo
4:10 pm - 7:06 pm
OTP
-
PDX
36h 56m
2 stops
$613Multiple Airlines
Sun, Sep 6 - Tue, Sep 15
United Airlines Logo
10:35 am - 1:10 am
PDX
-
OTP
28h 35m
2 stops
United Airlines Logo
6:05 am - 7:06 pm
OTP
-
PDX
23h 01m
2 stops
$624United Airlines
Tue, Aug 18 - Tue, Sep 29
British Airways Logo
1:20 pm - 12:50 am
PDX
-
OTP
25h 30m
2 stops
British Airways Logo
8:15 am - 5:40 pm
OTP
-
PDX
19h 25m
1 stop
$626British Airways
Sun, Sep 6 - Tue, Sep 15
SWISS Logo
1:14 pm - 3:20 pm
PDX
-
OTP
40h 06m
2 stops
SWISS Logo
6:20 am - 7:06 pm
OTP
-
PDX
22h 46m
2 stops
$628SWISS
Tue, Aug 18 - Thu, Oct 1
United Airlines Logo
4:07 pm - 1:10 am
PDX
-
OTP
23h 03m
2 stops
United Airlines Logo
6:05 am - 10:18 pm
OTP
-
PDX
26h 13m
2 stops
$635United Airlines
Tue, Aug 18 - Wed, Sep 30
SWISS Logo
1:14 pm - 3:20 pm
PDX
-
OTP
40h 06m
2 stops
SWISS Logo
6:20 am - 10:18 pm
OTP
-
PDX
25h 58m
2 stops
$638SWISS
Tue, Aug 18 - Fri, Oct 2
United Airlines Logo
4:07 pm - 1:10 am
PDX
-
OTP
23h 03m
2 stops
United Airlines Logo
1:50 pm - 2:51 pm
OTP
-
PDX
35h 01m
2 stops
$645United Airlines
Tue, Aug 18 - Mon, Sep 28
British Airways Logo
7:30 pm - 12:50 am
PDX
-
OTP
19h 20m
1 stop
British Airways Logo
8:15 am - 5:40 pm
OTP
-
PDX
19h 25m
1 stop
$646British Airways
Sun, Sep 6 - Tue, Sep 15
British Airways Logo
7:30 pm - 5:20 pm
PDX
-
OTP
35h 50m
1 stop
British Airways Logo
8:15 am - 5:40 pm
OTP
-
PDX
19h 25m
1 stop
$647British Airways
Sun, Aug 16 - Fri, Oct 2
Multiple Airlines Logo
7:40 am - 2:35 pm
PDX
-
OTP
20h 55m
2 stops
Multiple Airlines Logo
8:15 am - 5:40 pm
OTP
-
PDX
19h 25m
1 stop
$656Multiple Airlines
Wed, Aug 19 - Wed, Sep 30

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
Aug 24
PDX7:30 pmPortland
19h 50m
1 stop
OTP1:20 amBucharest Otopeni Intl
Oct 1
OTP8:15 amBucharest Otopeni Intl
19h 25m
1 stop
PDX5:40 pmPortland
$617
British Airways
Sep 6
PDX1:20 pmPortland
25h 30m
2 stops
OTP12:50 amBucharest Otopeni Intl
Sep 15
OTP8:15 amBucharest Otopeni Intl
19h 25m
1 stop
PDX5:40 pmPortland
$626
British Airways
Sep 6
PDX7:30 pmPortland
19h 20m
1 stop
OTP12:50 amBucharest Otopeni Intl
Sep 15
OTP8:15 amBucharest Otopeni Intl
19h 25m
1 stop
PDX5:40 pmPortland
$646

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
Aug 18
PDX10:35 amPortland
28h 35m
2 stops
OTP1:10 amBucharest Otopeni Intl
Sep 29
OTP6:05 amBucharest Otopeni Intl
23h 01m
2 stops
PDX7:06 pmPortland
$624
United Airlines
Aug 18
PDX4:07 pmPortland
23h 03m
2 stops
OTP1:10 amBucharest Otopeni Intl
Sep 30
OTP6:05 amBucharest Otopeni Intl
26h 13m
2 stops
PDX10:18 pmPortland
$635
United Airlines
Aug 9
PDX11:30 pmPortland
26h 30m
2 stops
OTP12:00 pmBucharest Otopeni Intl
Oct 2
OTP6:05 amBucharest Otopeni Intl
23h 01m
2 stops
PDX7:06 pmPortland
$674

momondo Fare Finder

 
Customize your flight search to find flights from Portland to Bucharest Otopeni Intl Airport 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 March 14, 2026.
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

Cheapest round-trip

PortlandBucharest

PDX - OTP

PDXOTP

Portland

Sun 9/6

8:29 am-12:00 pm

2 stops17h 31m

Bucharest Otopeni Intl

Tue 9/15

4:10 pm-7:06 pm

2 stops36h 56m

$613

PortlandBucharest

PDX - OTP

PDXOTP

Portland

Tue 8/18

10:35 am-1:10 am

2 stops28h 35m

Bucharest Otopeni Intl

Tue 9/29

6:05 am-7:06 pm

2 stops23h 01m

$624

PortlandBucharest

PDX - OTP

PDXOTP

Portland

Sun 9/6

1:20 pm-12:50 am

2 stops25h 30m

Bucharest Otopeni Intl

Tue 9/15

8:15 am-5:40 pm

1 stop19h 25m

$626

PortlandBucharest

PDX - OTP

PDXOTP

Portland

Tue 8/18

1:14 pm-3:20 pm

2 stops40h 06m

Bucharest Otopeni Intl

Thu 10/1

6:20 am-7:06 pm

2 stops22h 46m

$628

PortlandBucharest

PDX - OTP

PDXOTP

Portland

Tue 8/18

4:07 pm-1:10 am

2 stops23h 03m

Bucharest Otopeni Intl

Wed 9/30

6:05 am-10:18 pm

2 stops26h 13m

$635

PortlandBucharest

PDX - OTP

PDXOTP

Portland

Tue 8/18

1:14 pm-3:20 pm

2 stops40h 06m

Bucharest Otopeni Intl

Fri 10/2

6:20 am-10:18 pm

2 stops25h 58m

$638

PortlandBucharest

PDX - OTP

PDXOTP

Portland

Tue 8/18

4:07 pm-1:10 am

2 stops23h 03m

Bucharest Otopeni Intl

Mon 9/28

1:50 pm-2:51 pm

2 stops35h 01m

$645
Quickest round-trip

PortlandBucharest

PDX - OTP

PDXOTP

Portland

Sun 9/6

7:30 pm-12:50 am

1 stop19h 20m

Bucharest Otopeni Intl

Tue 9/15

8:15 am-5:40 pm

1 stop19h 25m

$646

PortlandBucharest

PDX - OTP

PDXOTP

Portland

Sun 8/16

7:30 pm-5:20 pm

1 stop35h 50m

Bucharest Otopeni Intl

Fri 10/2

8:15 am-5:40 pm

1 stop19h 25m

$647

PortlandBucharest

PDX - OTP

PDXOTP

Portland

Wed 8/19

7:40 am-2:35 pm

2 stops20h 55m

Bucharest Otopeni Intl

Wed 9/30

8:15 am-5:40 pm

1 stop19h 25m

$656

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Bucharest from

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 $678.

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 $859 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 $553 on momondo.

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

You could potentially save up to 38% 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

13h 55m

Direct flights

None
The fastest flight from Portland to Bucharest Otopeni Intl Airport takes 13h 55m
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 55m.

  • 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?

  • 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?

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
DeltaPriceFrom $570Free CancellationRating
7.9
8,291 reviews
Search Delta flights
British AirwaysPriceFrom $571Free CancellationRating
6.7
7,786 reviews
Search British Airways flights
KLMPriceFrom $618Free CancellationRating
7.8
1,471 reviews
Search KLM flights

Traveling to a place near Bucharest?

Book flights to Bucharest if you plan to visit one of these locations
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.

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