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Cheap flights from Portland to Bulgaria from $254

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 Bulgaria departing on 7/29. 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
0 bags

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Find the cheapest flights from Portland to Bulgaria

Cheap round-trip flights

Enter your travel dates to find the best prices.
KLM Logo
1:05 pm - 2:00 pm
PDX
-
SOF
14h 55m
1 stop
KLM Logo
7:00 am - 6:08 pm
SOF
-
PDX
21h 08m
2 stops
$611KLM
Tue, Apr 14 - Tue, Apr 21
United Airlines Logo
11:59 pm - 6:10 pm
PDX
-
SOF
32h 11m
2 stops
United Airlines Logo
6:30 am - 7:05 pm
SOF
-
PDX
22h 35m
2 stops
$615United Airlines
Sat, Apr 25 - Thu, May 7
Lufthansa Logo
9:50 am - 6:00 pm
PDX
-
SOF
22h 10m
2 stops
Lufthansa Logo
6:10 am - 12:44 am
SOF
-
PDX
28h 34m
2 stops
$618Lufthansa
Tue, Apr 14 - Tue, Apr 21
KLM Logo
1:05 pm - 2:00 pm
PDX
-
SOF
14h 55m
1 stop
KLM Logo
7:00 am - 11:10 am
SOF
-
PDX
14h 10m
1 stop
$653KLM
Wed, Apr 1 - Wed, Apr 8
KLM Logo
6:30 am - 2:00 pm
PDX
-
SOF
21h 30m
2 stops
KLM Logo
7:00 am - 11:10 am
SOF
-
PDX
14h 10m
1 stop
$658KLM
Wed, Apr 1 - Wed, Apr 8
KLM Logo
1:05 pm - 2:00 pm
PDX
-
SOF
14h 55m
1 stop
KLM Logo
7:00 am - 8:25 pm
SOF
-
PDX
23h 25m
2 stops
$663KLM
Wed, Apr 1 - Tue, Apr 7
KLM Logo
6:30 am - 2:00 pm
PDX
-
SOF
21h 30m
2 stops
KLM Logo
7:00 am - 7:25 pm
SOF
-
PDX
22h 25m
2 stops
$667KLM
Wed, Apr 1 - Wed, Apr 8
KLM Logo
1:05 pm - 2:00 pm
PDX
-
SOF
14h 55m
1 stop
KLM Logo
7:00 am - 11:10 am
SOF
-
PDX
14h 10m
1 stop
$705KLM
Wed, Apr 1 - Tue, Apr 7
KLM Logo
9:15 am - 2:00 pm
PDX
-
SOF
18h 45m
2 stops
KLM Logo
7:00 am - 11:10 am
SOF
-
PDX
14h 10m
1 stop
$708KLM
Thu, Apr 2 - Wed, Apr 8
KLM Logo
9:15 am - 2:00 pm
PDX
-
SOF
18h 45m
2 stops
KLM Logo
7:00 am - 7:25 pm
SOF
-
PDX
22h 25m
2 stops
$717KLM
Thu, Apr 2 - Tue, Apr 7

KLM flights from Portland to Bulgaria

Our best KLM deals on Portland to Bulgaria flight tickets
KLM
Apr 14
PDX1:05 pmPortland
14h 55m
1 stop
SOF2:00 pmSofia
Apr 21
SOF7:00 amSofia
21h 08m
2 stops
PDX6:08 pmPortland
$611
KLM
Apr 1
PDX1:05 pmPortland
14h 55m
1 stop
SOF2:00 pmSofia
Apr 8
SOF7:00 amSofia
14h 10m
1 stop
PDX11:10 amPortland
$653
KLM
Apr 1
PDX6:30 amPortland
21h 30m
2 stops
SOF2:00 pmSofia
Apr 8
SOF7:00 amSofia
14h 10m
1 stop
PDX11:10 amPortland
$658

United Airlines flights from Portland to Bulgaria

Our best United Airlines deals on Portland to Bulgaria flight tickets
United Airlines
Apr 25
PDX11:59 pmPortland
32h 11m
2 stops
SOF6:10 pmSofia
May 7
SOF6:30 amSofia
22h 35m
2 stops
PDX7:05 pmPortland
$615
United Airlines
May 7
PDX8:04 amPortland
18h 06m
2 stops
SOF12:10 pmSofia
May 31
SOF6:20 amSofia
28h 30m
2 stops
PDX12:50 amPortland
$754
United Airlines
Mar 5
PDX5:30 amPortland
31h 15m
2 stops
SOF10:45 pmSofia
Mar 9
SOF1:45 pmSofia
41h 13m
2 stops
PDX9:58 pmPortland
$790

momondo Fare Finder

 
Customize your flight search to find flights from Portland to Bulgaria 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 4, 2026.
Use the filters below to find and compare flights from Portland to Bulgaria that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

PortlandSofia

PDX - SOF

PDXSOF

Portland

Tue 4/14

1:05 pm-2:00 pm

1 stop14h 55m

Sofia

Tue 4/21

7:00 am-6:08 pm

2 stops21h 08m

$611

PortlandSofia

PDX - SOF

PDXSOF

Portland

Sat 4/25

11:59 pm-6:10 pm

2 stops32h 11m

Sofia

Thu 5/7

6:30 am-7:05 pm

2 stops22h 35m

$615

PortlandSofia

PDX - SOF

PDXSOF

Portland

Tue 4/14

9:50 am-6:00 pm

2 stops22h 10m

Sofia

Tue 4/21

6:10 am-12:44 am

2 stops28h 34m

$618

PortlandSofia

PDX - SOF

PDXSOF

Portland

Wed 4/1

1:05 pm-2:00 pm

1 stop14h 55m

Sofia

Wed 4/8

7:00 am-11:10 am

1 stop14h 10m

$653

PortlandSofia

PDX - SOF

PDXSOF

Portland

Wed 4/1

6:30 am-2:00 pm

2 stops21h 30m

Sofia

Wed 4/8

7:00 am-11:10 am

1 stop14h 10m

$658

PortlandSofia

PDX - SOF

PDXSOF

Portland

Wed 4/1

1:05 pm-2:00 pm

1 stop14h 55m

Sofia

Tue 4/7

7:00 am-8:25 pm

2 stops23h 25m

$663

PortlandSofia

PDX - SOF

PDXSOF

Portland

Wed 4/1

6:30 am-2:00 pm

2 stops21h 30m

Sofia

Wed 4/8

7:00 am-7:25 pm

2 stops22h 25m

$667

PortlandSofia

PDX - SOF

PDXSOF

Portland

Wed 4/1

1:05 pm-2:00 pm

1 stop14h 55m

Sofia

Tue 4/7

7:00 am-11:10 am

1 stop14h 10m

$705

PortlandSofia

PDX - SOF

PDXSOF

Portland

Thu 4/2

9:15 am-2:00 pm

2 stops18h 45m

Sofia

Wed 4/8

7:00 am-11:10 am

1 stop14h 10m

$708

PortlandSofia

PDX - SOF

PDXSOF

Portland

Thu 4/2

9:15 am-2:00 pm

2 stops18h 45m

Sofia

Tue 4/7

7:00 am-7:25 pm

2 stops22h 25m

$717

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 Bulgaria from

How to get the cheapest flight ticket from Portland to Bulgaria

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 Bulgaria?

If you aren’t able to travel to Bulgaria during the month of March, then flying in May is also cheap. Prices for this month can be found on momondo for an average of $687.

Cheap Portland to Bulgaria flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Portland to Bulgaria

Fastest flight time

23h 15m

Direct flights

None
The fastest flight from Portland to Bulgaria takes 23h 15m
There are no direct flights from Portland to Bulgaria. There are no popular flight routes from Portland to Bulgaria.
Search flight deals

  • When did momondo last update prices for flights from Portland Airport to Bulgaria?

    Prices for flights from Portland Airport to Bulgaria are updated daily.

  • How many operators does momondo search for flights from Portland Airport to Bulgaria?

  • How old do you have to be to fly from Portland Airport to Bulgaria?

    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 Bulgaria.

  • What documentation or ID do you need to fly to Bulgaria?

    The travel and health documents you'll need for your trip to Bulgaria may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Bulgaria. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Portland to Bulgaria

Compare and see reviews for airlines that fly from Portland to Bulgaria with momondo
Airline
Rating
Free Cancellation
Price
KLMPriceFrom $555Free CancellationRating
7.8
1,463 reviews
Search KLM flights
LufthansaPriceFrom $635Free CancellationRating
6.8
7,823 reviews
Search Lufthansa flights
United AirlinesPriceFrom $639Free CancellationRating
7.4
9,383 reviews
Search United Airlines flights

Why use momondo?

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

Finding the right flight to Bulgaria from Portland is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Bulgaria quick and easy, saving you time and money.

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

Yes. momondo allows you to filter the results for Portland to Bulgaria flights to just show those with flexible booking policies.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Portland to Bulgaria.

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

Price alerts on flights to Bulgaria from Portland are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

An easier way to manage your Bulgaria trip

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