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Cheap flights from Portland to Bulgaria from $486

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 Bulgaria departing on 2/10. 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.
Lufthansa Logo
3:46 pm - 10:45 pm
PDX
-
SOF
20h 59m2 stops
Lufthansa Logo
6:00 am - 6:49 pm
SOF
-
PDX
22h 49m2 stops
$486Lufthansa
Tue, Feb 10 - Tue, Feb 24
Multiple Airlines Logo
10:05 am - 2:05 pm
PDX
-
SOF
18h 00m2 stops
Multiple Airlines Logo
7:00 am - 11:25 am
SOF
-
PDX
14h 25m1 stop
$513Multiple Airlines
Mon, Feb 23 - Mon, Mar 2
KLM Logo
1:25 pm - 2:05 pm
PDX
-
SOF
14h 40m1 stop
KLM Logo
7:00 am - 11:25 am
SOF
-
PDX
14h 25m1 stop
$514KLM
Mon, Feb 23 - Mon, Mar 2
Multiple Airlines Logo
3:50 pm - 10:45 pm
PDX
-
SOF
20h 55m2 stops
Multiple Airlines Logo
6:05 am - 6:30 pm
SOF
-
PDX
22h 25m2 stops
$516Multiple Airlines
Fri, Feb 6 - Fri, Feb 13
Multiple Airlines Logo
7:00 am - 1:55 pm
PDX
-
SOF
20h 55m2 stops
Multiple Airlines Logo
7:00 am - 11:25 am
SOF
-
PDX
14h 25m1 stop
$541Multiple Airlines
Fri, Feb 6 - Fri, Feb 13
United Airlines Logo
5:30 am - 1:50 pm
PDX
-
SOF
22h 20m2 stops
United Airlines Logo
1:45 pm - 7:14 pm
SOF
-
PDX
38h 29m2 stops
$549United Airlines
Thu, Mar 5 - Mon, Mar 9
Multiple Airlines Logo
6:50 am - 1:55 pm
PDX
-
SOF
21h 05m2 stops
Multiple Airlines Logo
7:00 am - 5:35 pm
SOF
-
PDX
20h 35m2 stops
$551Multiple Airlines
Thu, Jan 22 - Tue, Jan 27
United Airlines Logo
8:05 am - 11:10 pm
PDX
-
SOF
29h 05m2 stops
United Airlines Logo
6:20 am - 7:27 pm
SOF
-
PDX
23h 07m2 stops
$552United Airlines
Fri, May 1 - Wed, May 6
United Airlines Logo
4:15 pm - 11:10 pm
PDX
-
SOF
44h 55m2 stops
United Airlines Logo
6:20 am - 10:29 pm
SOF
-
PDX
26h 09m2 stops
$557United Airlines
Sat, Apr 11 - Sun, Apr 19
United Airlines Logo
10:47 am - 10:45 pm
PDX
-
SOF
25h 58m2 stops
United Airlines Logo
2:00 pm - 12:18 pm
SOF
-
PDX
56h 18m3 stops
$575United Airlines
Thu, Jan 22 - Tue, Jan 27

KLM flights from Portland to Bulgaria

Our best KLM deals on Portland to Bulgaria flight tickets
KLM
Feb 23
PDX1:25 pmPortland
14h 40m
1 stop
SOF2:05 pmSofia
Mar 2
SOF7:00 amSofia
14h 25m
1 stop
PDX11:25 amPortland
$514
KLM
May 10
PDX11:10 amPortland
16h 50m
2 stops
SOF2:00 pmSofia
May 17
SOF7:00 amSofia
14h 10m
1 stop
PDX11:10 amPortland
$585
KLM
Feb 6
PDX1:25 pmPortland
14h 40m
1 stop
SOF2:05 pmSofia
Feb 13
SOF7:00 amSofia
14h 25m
1 stop
PDX11:25 amPortland
$614

British Airways flights from Portland to Bulgaria

Our best British Airways deals on Portland to Bulgaria flight tickets
British Airways
Apr 11
PDX1:55 pmPortland
43h 25m
2 stops
SOF7:20 pmSofia
Apr 19
SOF9:05 pmSofia
30h 35m
1 stop
PDX5:40 pmPortland
$580
British Airways
Apr 11
PDX7:30 pmPortland
14h 40m
1 stop
SOF8:10 pmSofia
Apr 19
SOF9:05 pmSofia
30h 35m
1 stop
PDX5:40 pmPortland
$587

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 January 11, 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 2/10

3:46 pm-10:45 pm

2 stops20h 59m

Sofia

Tue 2/24

6:00 am-6:49 pm

2 stops22h 49m

$486

PortlandSofia

PDX - SOF

PDXSOF

Portland

Mon 2/23

10:05 am-2:05 pm

2 stops18h 00m

Sofia

Mon 3/2

7:00 am-11:25 am

1 stop14h 25m

$513

PortlandSofia

PDX - SOF

PDXSOF

Portland

Mon 2/23

1:25 pm-2:05 pm

1 stop14h 40m

Sofia

Mon 3/2

7:00 am-11:25 am

1 stop14h 25m

$514

PortlandSofia

PDX - SOF

PDXSOF

Portland

Fri 2/6

3:50 pm-10:45 pm

2 stops20h 55m

Sofia

Fri 2/13

6:05 am-6:30 pm

2 stops22h 25m

$516

PortlandSofia

PDX - SOF

PDXSOF

Portland

Fri 2/6

7:00 am-1:55 pm

2 stops20h 55m

Sofia

Fri 2/13

7:00 am-11:25 am

1 stop14h 25m

$541

PortlandSofia

PDX - SOF

PDXSOF

Portland

Thu 3/5

5:30 am-1:50 pm

2 stops22h 20m

Sofia

Mon 3/9

1:45 pm-7:14 pm

2 stops38h 29m

$549

PortlandSofia

PDX - SOF

PDXSOF

Portland

Thu 1/22

6:50 am-1:55 pm

2 stops21h 05m

Sofia

Tue 1/27

7:00 am-5:35 pm

2 stops20h 35m

$551

PortlandSofia

PDX - SOF

PDXSOF

Portland

Fri 5/1

8:05 am-11:10 pm

2 stops29h 05m

Sofia

Wed 5/6

6:20 am-7:27 pm

2 stops23h 07m

$552

PortlandSofia

PDX - SOF

PDXSOF

Portland

Sat 4/11

4:15 pm-11:10 pm

2 stops44h 55m

Sofia

Sun 4/19

6:20 am-10:29 pm

2 stops26h 09m

$557

PortlandSofia

PDX - SOF

PDXSOF

Portland

Thu 1/22

10:47 am-10:45 pm

2 stops25h 58m

Sofia

Tue 1/27

2:00 pm-12:18 pm

3 stops56h 18m

$575

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

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 May, then flying in February is also cheap. Prices for this month can be found on momondo for an average of $662.

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

20h 59m

Direct flights

None
The fastest flight from Portland to Bulgaria takes 20h 59m
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
7.7
1,435 reviews
Search KLM flights
LufthansaPriceFrom $635Free CancellationRating
6.8
7,710 reviews
Search Lufthansa flights
United AirlinesPriceFrom $639Free CancellationRating
7.4
9,145 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

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.
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