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Cheap flights from Portland to Bulgaria from $598

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 11/5. 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

KLM Logo
1:25 pm - 2:05 pmPDX-SOF
14h 40m1 stop
KLM Logo
7:00 am - 11:25 amSOF-PDX
14h 25m1 stop
$598KLM
Find Deal
Wed, Nov 5 - Wed, Nov 12
KLM Logo
1:25 pm - 2:05 pmPDX-SOF
14h 40m1 stop
KLM Logo
7:00 am - 5:43 pmSOF-PDX
20h 43m2 stops
$608KLM
Find Deal
Wed, Nov 5 - Wed, Nov 12
Air Canada Logo
9:50 am - 6:20 pmPDX-SOF
23h 30m2 stops
Air Canada Logo
6:05 am - 6:30 pmSOF-PDX
21h 25m2 stops
$615Air Canada
Find Deal
Tue, Mar 10 - Tue, Mar 24
Multiple Airlines Logo
12:55 pm - 6:20 pmPDX-SOF
19h 25m2 stops
Multiple Airlines Logo
2:25 pm - 12:26 amSOF-PDX
20h 01m2 stops
$616Multiple Airlines
Find Deal
Wed, Nov 5 - Wed, Nov 12
United Airlines Logo
5:45 am - 6:20 pmPDX-SOF
27h 35m3 stops
United Airlines Logo
2:15 pm - 10:15 amSOF-PDX
29h 00m2 stops
$617United Airlines
Find Deal
Wed, Mar 11 - Tue, Mar 24
United Airlines Logo
12:40 pm - 1:45 pmPDX-SOF
16h 05m2 stops
United Airlines Logo
6:10 am - 10:38 pmSOF-PDX
25h 28m2 stops
$622United Airlines
Find Deal
Tue, Mar 10 - Wed, Mar 25
Air Canada Logo
9:50 am - 6:20 pmPDX-SOF
23h 30m2 stops
Air Canada Logo
1:50 pm - 9:15 amSOF-PDX
53h 25m2 stops
$624Air Canada
Find Deal
Tue, Mar 10 - Mon, Mar 30
Lufthansa Logo
3:41 pm - 10:45 pmPDX-SOF
46h 04m2 stops
Lufthansa Logo
6:00 am - 12:19 amSOF-PDX
27h 19m2 stops
$632Lufthansa
Find Deal
Sat, Mar 14 - Tue, Mar 24
Multiple Airlines Logo
11:10 am - 1:55 pmPDX-SOF
16h 45m2 stops
Multiple Airlines Logo
7:00 am - 7:30 pmSOF-PDX
22h 30m2 stops
$650Multiple Airlines
Find Deal
Thu, Nov 6 - Thu, Nov 13
Lufthansa Logo
7:30 pm - 10:45 pmPDX-SOF
18h 15m2 stops
Lufthansa Logo
1:55 pm - 8:49 pmSOF-PDX
39h 54m2 stops
$679Lufthansa
Find Deal
Thu, Mar 12 - Mon, Mar 16

Lufthansa flights from Portland to Bulgaria

Our best Lufthansa deals on Portland to Bulgaria flight tickets
Lufthansa
Mar 14
PDX3:41 pmPortland
46h 04m
2 stops
SOF10:45 pmSofia
Mar 24
SOF6:00 amSofia
27h 19m
2 stops
PDX12:19 amPortland
$632
Find similar
Lufthansa
Mar 12
PDX7:30 pmPortland
18h 15m
2 stops
SOF10:45 pmSofia
Mar 16
SOF1:55 pmSofia
39h 54m
2 stops
PDX8:49 pmPortland
$679
Find similar
Lufthansa
Mar 14
PDX3:41 pmPortland
46h 04m
2 stops
SOF10:45 pmSofia
Mar 30
SOF7:25 pmSofia
36h 43m
2 stops
PDX10:08 pmPortland
$719
Find similar

KLM flights from Portland to Bulgaria

Our best KLM deals on Portland to Bulgaria flight tickets
KLM
Nov 5
PDX1:25 pmPortland
14h 40m
1 stop
SOF2:05 pmSofia
Nov 12
SOF7:00 amSofia
14h 25m
1 stop
PDX11:25 amPortland
$598
Find similar
KLM
Nov 5
PDX1:25 pmPortland
14h 40m
1 stop
SOF2:05 pmSofia
Nov 12
SOF7:00 amSofia
20h 43m
2 stops
PDX5:43 pmPortland
$608
Find similar
KLM
Mar 16
PDX2:25 pmPortland
14h 40m
1 stop
SOF2:05 pmSofia
Mar 26
SOF7:00 amSofia
21h 11m
2 stops
PDX7:11 pmPortland
$683
Find similar

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 September 23, 2025.
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

Wed 11/5

1:25 pm-2:05 pm

1 stop14h 40m

Sofia

Wed 11/12

7:00 am-11:25 am

1 stop14h 25m

$598

PortlandSofia

PDX - SOF

PDXSOF

Portland

Wed 11/5

1:25 pm-2:05 pm

1 stop14h 40m

Sofia

Wed 11/12

7:00 am-5:43 pm

2 stops20h 43m

$608

PortlandSofia

PDX - SOF

PDXSOF

Portland

Tue 3/10

9:50 am-6:20 pm

2 stops23h 30m

Sofia

Tue 3/24

6:05 am-6:30 pm

2 stops21h 25m

$615

PortlandSofia

PDX - SOF

PDXSOF

Portland

Wed 11/5

12:55 pm-6:20 pm

2 stops19h 25m

Sofia

Wed 11/12

2:25 pm-12:26 am

2 stops20h 01m

$616

PortlandSofia

PDX - SOF

PDXSOF

Portland

Wed 3/11

5:45 am-6:20 pm

3 stops27h 35m

Sofia

Tue 3/24

2:15 pm-10:15 am

2 stops29h 00m

$617

PortlandSofia

PDX - SOF

PDXSOF

Portland

Tue 3/10

12:40 pm-1:45 pm

2 stops16h 05m

Sofia

Wed 3/25

6:10 am-10:38 pm

2 stops25h 28m

$622

PortlandSofia

PDX - SOF

PDXSOF

Portland

Tue 3/10

9:50 am-6:20 pm

2 stops23h 30m

Sofia

Mon 3/30

1:50 pm-9:15 am

2 stops53h 25m

$624

PortlandSofia

PDX - SOF

PDXSOF

Portland

Sat 3/14

3:41 pm-10:45 pm

2 stops46h 04m

Sofia

Tue 3/24

6:00 am-12:19 am

2 stops27h 19m

$632

PortlandSofia

PDX - SOF

PDXSOF

Portland

Thu 11/6

11:10 am-1:55 pm

2 stops16h 45m

Sofia

Thu 11/13

7:00 am-7:30 pm

2 stops22h 30m

$650

PortlandSofia

PDX - SOF

PDXSOF

Portland

Thu 3/12

7:30 pm-10:45 pm

2 stops18h 15m

Sofia

Mon 3/16

1:55 pm-8:49 pm

2 stops39h 54m

$679

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 November, then flying in October is also cheap. Prices for this month can be found on momondo for an average of $761.

What is the cheapest day to depart on your flight to Bulgaria?

The cheapest day to depart from Portland to Bulgaria is on a Tuesday when prices can be found for as low as $956. On the other hand, Saturday is the most expensive day to depart from Portland because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $1,199.

What is the cheapest time of day to depart on your flight to Bulgaria?

At noon is the cheapest time of day to fly from Portland to Bulgaria when you can find flight prices for as low as $1,012. Flying to Bulgaria at noon is an ideal time because this is during off-peak travel hours. Flights to Bulgaria are more costly in the morning, with an average ticket price of $1,171. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

Cheap Portland to Bulgaria flight deals and tips

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

Direct flights

None
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
LufthansaPriceFrom $635Free CancellationRating
6.8
7,421 reviews
Search Lufthansa flights
United AirlinesPriceFrom $639Free CancellationRating
7.4
8,926 reviews
Search United Airlines flights
Air CanadaPriceFrom $678Free CancellationRating
7.1
10,000 reviews
Search Air Canada flights
KLMPriceFrom $692Free CancellationRating
7.8
1,387 reviews
Search KLM 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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